| @@ -1,4154 +1,4140 @@ | | | @@ -1,4154 +1,4140 @@ |
1 | /* $NetBSD: var.c,v 1.248 2020/07/04 10:19:39 rillig Exp $ */ | | 1 | /* $NetBSD: var.c,v 1.249 2020/07/04 10:35:30 rillig Exp $ */ |
2 | | | 2 | |
3 | /* | | 3 | /* |
4 | * Copyright (c) 1988, 1989, 1990, 1993 | | 4 | * Copyright (c) 1988, 1989, 1990, 1993 |
5 | * The Regents of the University of California. All rights reserved. | | 5 | * The Regents of the University of California. All rights reserved. |
6 | * | | 6 | * |
7 | * This code is derived from software contributed to Berkeley by | | 7 | * This code is derived from software contributed to Berkeley by |
8 | * Adam de Boor. | | 8 | * Adam de Boor. |
9 | * | | 9 | * |
10 | * Redistribution and use in source and binary forms, with or without | | 10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions | | 11 | * modification, are permitted provided that the following conditions |
12 | * are met: | | 12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright | | 13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. | | 14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright | | 15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the | | 16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. | | 17 | * documentation and/or other materials provided with the distribution. |
18 | * 3. Neither the name of the University nor the names of its contributors | | 18 | * 3. Neither the name of the University nor the names of its contributors |
19 | * may be used to endorse or promote products derived from this software | | 19 | * may be used to endorse or promote products derived from this software |
20 | * without specific prior written permission. | | 20 | * without specific prior written permission. |
21 | * | | 21 | * |
22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | | 22 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | | 23 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | | 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | | 25 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | | 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | | 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | | 28 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | | 29 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | | 30 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | | 31 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
32 | * SUCH DAMAGE. | | 32 | * SUCH DAMAGE. |
33 | */ | | 33 | */ |
34 | | | 34 | |
35 | /* | | 35 | /* |
36 | * Copyright (c) 1989 by Berkeley Softworks | | 36 | * Copyright (c) 1989 by Berkeley Softworks |
37 | * All rights reserved. | | 37 | * All rights reserved. |
38 | * | | 38 | * |
39 | * This code is derived from software contributed to Berkeley by | | 39 | * This code is derived from software contributed to Berkeley by |
40 | * Adam de Boor. | | 40 | * Adam de Boor. |
41 | * | | 41 | * |
42 | * Redistribution and use in source and binary forms, with or without | | 42 | * Redistribution and use in source and binary forms, with or without |
43 | * modification, are permitted provided that the following conditions | | 43 | * modification, are permitted provided that the following conditions |
44 | * are met: | | 44 | * are met: |
45 | * 1. Redistributions of source code must retain the above copyright | | 45 | * 1. Redistributions of source code must retain the above copyright |
46 | * notice, this list of conditions and the following disclaimer. | | 46 | * notice, this list of conditions and the following disclaimer. |
47 | * 2. Redistributions in binary form must reproduce the above copyright | | 47 | * 2. Redistributions in binary form must reproduce the above copyright |
48 | * notice, this list of conditions and the following disclaimer in the | | 48 | * notice, this list of conditions and the following disclaimer in the |
49 | * documentation and/or other materials provided with the distribution. | | 49 | * documentation and/or other materials provided with the distribution. |
50 | * 3. All advertising materials mentioning features or use of this software | | 50 | * 3. All advertising materials mentioning features or use of this software |
51 | * must display the following acknowledgement: | | 51 | * must display the following acknowledgement: |
52 | * This product includes software developed by the University of | | 52 | * This product includes software developed by the University of |
53 | * California, Berkeley and its contributors. | | 53 | * California, Berkeley and its contributors. |
54 | * 4. Neither the name of the University nor the names of its contributors | | 54 | * 4. Neither the name of the University nor the names of its contributors |
55 | * may be used to endorse or promote products derived from this software | | 55 | * may be used to endorse or promote products derived from this software |
56 | * without specific prior written permission. | | 56 | * without specific prior written permission. |
57 | * | | 57 | * |
58 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | | 58 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
59 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | | 59 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
60 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | | 60 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
61 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | | 61 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
62 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | | 62 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
63 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | | 63 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
64 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | | 64 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
65 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | | 65 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
66 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | | 66 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
67 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | | 67 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
68 | * SUCH DAMAGE. | | 68 | * SUCH DAMAGE. |
69 | */ | | 69 | */ |
70 | | | 70 | |
71 | #ifndef MAKE_NATIVE | | 71 | #ifndef MAKE_NATIVE |
72 | static char rcsid[] = "$NetBSD: var.c,v 1.248 2020/07/04 10:19:39 rillig Exp $"; | | 72 | static char rcsid[] = "$NetBSD: var.c,v 1.249 2020/07/04 10:35:30 rillig Exp $"; |
73 | #else | | 73 | #else |
74 | #include <sys/cdefs.h> | | 74 | #include <sys/cdefs.h> |
75 | #ifndef lint | | 75 | #ifndef lint |
76 | #if 0 | | 76 | #if 0 |
77 | static char sccsid[] = "@(#)var.c 8.3 (Berkeley) 3/19/94"; | | 77 | static char sccsid[] = "@(#)var.c 8.3 (Berkeley) 3/19/94"; |
78 | #else | | 78 | #else |
79 | __RCSID("$NetBSD: var.c,v 1.248 2020/07/04 10:19:39 rillig Exp $"); | | 79 | __RCSID("$NetBSD: var.c,v 1.249 2020/07/04 10:35:30 rillig Exp $"); |
80 | #endif | | 80 | #endif |
81 | #endif /* not lint */ | | 81 | #endif /* not lint */ |
82 | #endif | | 82 | #endif |
83 | | | 83 | |
84 | /*- | | 84 | /*- |
85 | * var.c -- | | 85 | * var.c -- |
86 | * Variable-handling functions | | 86 | * Variable-handling functions |
87 | * | | 87 | * |
88 | * Interface: | | 88 | * Interface: |
89 | * Var_Set Set the value of a variable in the given | | 89 | * Var_Set Set the value of a variable in the given |
90 | * context. The variable is created if it doesn't | | 90 | * context. The variable is created if it doesn't |
91 | * yet exist. The value and variable name need not | | 91 | * yet exist. The value and variable name need not |
92 | * be preserved. | | 92 | * be preserved. |
93 | * | | 93 | * |
94 | * Var_Append Append more characters to an existing variable | | 94 | * Var_Append Append more characters to an existing variable |
95 | * in the given context. The variable needn't | | 95 | * in the given context. The variable needn't |
96 | * exist already -- it will be created if it doesn't. | | 96 | * exist already -- it will be created if it doesn't. |
97 | * A space is placed between the old value and the | | 97 | * A space is placed between the old value and the |
98 | * new one. | | 98 | * new one. |
99 | * | | 99 | * |
100 | * Var_Exists See if a variable exists. | | 100 | * Var_Exists See if a variable exists. |
101 | * | | 101 | * |
102 | * Var_Value Return the value of a variable in a context or | | 102 | * Var_Value Return the value of a variable in a context or |
103 | * NULL if the variable is undefined. | | 103 | * NULL if the variable is undefined. |
104 | * | | 104 | * |
105 | * Var_Subst Substitute named variable, or all variables if | | 105 | * Var_Subst Substitute named variable, or all variables if |
106 | * NULL in a string using | | 106 | * NULL in a string using |
107 | * the given context as the top-most one. If the | | 107 | * the given context as the top-most one. If the |
108 | * third argument is non-zero, Parse_Error is | | 108 | * third argument is non-zero, Parse_Error is |
109 | * called if any variables are undefined. | | 109 | * called if any variables are undefined. |
110 | * | | 110 | * |
111 | * Var_Parse Parse a variable expansion from a string and | | 111 | * Var_Parse Parse a variable expansion from a string and |
112 | * return the result and the number of characters | | 112 | * return the result and the number of characters |
113 | * consumed. | | 113 | * consumed. |
114 | * | | 114 | * |
115 | * Var_Delete Delete a variable in a context. | | 115 | * Var_Delete Delete a variable in a context. |
116 | * | | 116 | * |
117 | * Var_Init Initialize this module. | | 117 | * Var_Init Initialize this module. |
118 | * | | 118 | * |
119 | * Debugging: | | 119 | * Debugging: |
120 | * Var_Dump Print out all variables defined in the given | | 120 | * Var_Dump Print out all variables defined in the given |
121 | * context. | | 121 | * context. |
122 | * | | 122 | * |
123 | * XXX: There's a lot of duplication in these functions. | | 123 | * XXX: There's a lot of duplication in these functions. |
124 | */ | | 124 | */ |
125 | | | 125 | |
126 | #include <sys/stat.h> | | 126 | #include <sys/stat.h> |
127 | #ifndef NO_REGEX | | 127 | #ifndef NO_REGEX |
128 | #include <sys/types.h> | | 128 | #include <sys/types.h> |
129 | #include <regex.h> | | 129 | #include <regex.h> |
130 | #endif | | 130 | #endif |
131 | #include <ctype.h> | | 131 | #include <ctype.h> |
132 | #include <inttypes.h> | | 132 | #include <inttypes.h> |
133 | #include <stdlib.h> | | 133 | #include <stdlib.h> |
134 | #include <limits.h> | | 134 | #include <limits.h> |
135 | #include <time.h> | | 135 | #include <time.h> |
136 | | | 136 | |
137 | #include "make.h" | | 137 | #include "make.h" |
138 | #include "buf.h" | | 138 | #include "buf.h" |
139 | #include "dir.h" | | 139 | #include "dir.h" |
140 | #include "job.h" | | 140 | #include "job.h" |
141 | #include "metachar.h" | | 141 | #include "metachar.h" |
142 | | | 142 | |
143 | extern int makelevel; | | 143 | extern int makelevel; |
144 | /* | | 144 | /* |
145 | * This lets us tell if we have replaced the original environ | | 145 | * This lets us tell if we have replaced the original environ |
146 | * (which we cannot free). | | 146 | * (which we cannot free). |
147 | */ | | 147 | */ |
148 | char **savedEnv = NULL; | | 148 | char **savedEnv = NULL; |
149 | | | 149 | |
150 | /* | | 150 | /* |
151 | * This is a harmless return value for Var_Parse that can be used by Var_Subst | | 151 | * This is a harmless return value for Var_Parse that can be used by Var_Subst |
152 | * to determine if there was an error in parsing -- easier than returning | | 152 | * to determine if there was an error in parsing -- easier than returning |
153 | * a flag, as things outside this module don't give a hoot. | | 153 | * a flag, as things outside this module don't give a hoot. |
154 | */ | | 154 | */ |
155 | char var_Error[] = ""; | | 155 | char var_Error[] = ""; |
156 | | | 156 | |
157 | /* | | 157 | /* |
158 | * Similar to var_Error, but returned when the 'VARF_UNDEFERR' flag for | | 158 | * Similar to var_Error, but returned when the 'VARF_UNDEFERR' flag for |
159 | * Var_Parse is not set. Why not just use a constant? Well, gcc likes | | 159 | * Var_Parse is not set. Why not just use a constant? Well, gcc likes |
160 | * to condense identical string instances... | | 160 | * to condense identical string instances... |
161 | */ | | 161 | */ |
162 | static char varNoError[] = ""; | | 162 | static char varNoError[] = ""; |
163 | | | 163 | |
164 | /* | | 164 | /* |
165 | * Traditionally we consume $$ during := like any other expansion. | | 165 | * Traditionally we consume $$ during := like any other expansion. |
166 | * Other make's do not. | | 166 | * Other make's do not. |
167 | * This knob allows controlling the behavior. | | 167 | * This knob allows controlling the behavior. |
168 | * FALSE for old behavior. | | 168 | * FALSE for old behavior. |
169 | * TRUE for new compatible. | | 169 | * TRUE for new compatible. |
170 | */ | | 170 | */ |
171 | #define SAVE_DOLLARS ".MAKE.SAVE_DOLLARS" | | 171 | #define SAVE_DOLLARS ".MAKE.SAVE_DOLLARS" |
172 | static Boolean save_dollars = TRUE; | | 172 | static Boolean save_dollars = TRUE; |
173 | | | 173 | |
174 | /* | | 174 | /* |
175 | * Internally, variables are contained in four different contexts. | | 175 | * Internally, variables are contained in four different contexts. |
176 | * 1) the environment. They may not be changed. If an environment | | 176 | * 1) the environment. They may not be changed. If an environment |
177 | * variable is appended-to, the result is placed in the global | | 177 | * variable is appended-to, the result is placed in the global |
178 | * context. | | 178 | * context. |
179 | * 2) the global context. Variables set in the Makefile are located in | | 179 | * 2) the global context. Variables set in the Makefile are located in |
180 | * the global context. It is the penultimate context searched when | | 180 | * the global context. It is the penultimate context searched when |
181 | * substituting. | | 181 | * substituting. |
182 | * 3) the command-line context. All variables set on the command line | | 182 | * 3) the command-line context. All variables set on the command line |
183 | * are placed in this context. They are UNALTERABLE once placed here. | | 183 | * are placed in this context. They are UNALTERABLE once placed here. |
184 | * 4) the local context. Each target has associated with it a context | | 184 | * 4) the local context. Each target has associated with it a context |
185 | * list. On this list are located the structures describing such | | 185 | * list. On this list are located the structures describing such |
186 | * local variables as $(@) and $(*) | | 186 | * local variables as $(@) and $(*) |
187 | * The four contexts are searched in the reverse order from which they are | | 187 | * The four contexts are searched in the reverse order from which they are |
188 | * listed. | | 188 | * listed. |
189 | */ | | 189 | */ |
190 | GNode *VAR_INTERNAL; /* variables from make itself */ | | 190 | GNode *VAR_INTERNAL; /* variables from make itself */ |
191 | GNode *VAR_GLOBAL; /* variables from the makefile */ | | 191 | GNode *VAR_GLOBAL; /* variables from the makefile */ |
192 | GNode *VAR_CMD; /* variables defined on the command-line */ | | 192 | GNode *VAR_CMD; /* variables defined on the command-line */ |
193 | | | 193 | |
194 | #define FIND_CMD 0x1 /* look in VAR_CMD when searching */ | | 194 | #define FIND_CMD 0x1 /* look in VAR_CMD when searching */ |
195 | #define FIND_GLOBAL 0x2 /* look in VAR_GLOBAL as well */ | | 195 | #define FIND_GLOBAL 0x2 /* look in VAR_GLOBAL as well */ |
196 | #define FIND_ENV 0x4 /* look in the environment also */ | | 196 | #define FIND_ENV 0x4 /* look in the environment also */ |
197 | | | 197 | |
198 | typedef enum { | | 198 | typedef enum { |
199 | VAR_IN_USE = 0x01, /* Variable's value is currently being used. | | 199 | VAR_IN_USE = 0x01, /* Variable's value is currently being used. |
200 | * Used to avoid endless recursion */ | | 200 | * Used to avoid endless recursion */ |
201 | VAR_FROM_ENV = 0x02, /* Variable comes from the environment */ | | 201 | VAR_FROM_ENV = 0x02, /* Variable comes from the environment */ |
202 | VAR_JUNK = 0x04, /* Variable is a junk variable that | | 202 | VAR_JUNK = 0x04, /* Variable is a junk variable that |
203 | * should be destroyed when done with | | 203 | * should be destroyed when done with |
204 | * it. Used by Var_Parse for undefined, | | 204 | * it. Used by Var_Parse for undefined, |
205 | * modified variables */ | | 205 | * modified variables */ |
206 | VAR_KEEP = 0x08, /* Variable is VAR_JUNK, but we found | | 206 | VAR_KEEP = 0x08, /* Variable is VAR_JUNK, but we found |
207 | * a use for it in some modifier and | | 207 | * a use for it in some modifier and |
208 | * the value is therefore valid */ | | 208 | * the value is therefore valid */ |
209 | VAR_EXPORTED = 0x10, /* Variable is exported */ | | 209 | VAR_EXPORTED = 0x10, /* Variable is exported */ |
210 | VAR_REEXPORT = 0x20, /* Indicate if var needs re-export. | | 210 | VAR_REEXPORT = 0x20, /* Indicate if var needs re-export. |
211 | * This would be true if it contains $'s */ | | 211 | * This would be true if it contains $'s */ |
212 | VAR_FROM_CMD = 0x40 /* Variable came from command line */ | | 212 | VAR_FROM_CMD = 0x40 /* Variable came from command line */ |
213 | } Var_Flags; | | 213 | } Var_Flags; |
214 | | | 214 | |
215 | typedef struct Var { | | 215 | typedef struct Var { |
216 | char *name; /* the variable's name */ | | 216 | char *name; /* the variable's name */ |
217 | Buffer val; /* its value */ | | 217 | Buffer val; /* its value */ |
218 | Var_Flags flags; /* miscellaneous status flags */ | | 218 | Var_Flags flags; /* miscellaneous status flags */ |
219 | } Var; | | 219 | } Var; |
220 | | | 220 | |
221 | /* | | 221 | /* |
222 | * Exporting vars is expensive so skip it if we can | | 222 | * Exporting vars is expensive so skip it if we can |
223 | */ | | 223 | */ |
224 | #define VAR_EXPORTED_NONE 0 | | 224 | #define VAR_EXPORTED_NONE 0 |
225 | #define VAR_EXPORTED_YES 1 | | 225 | #define VAR_EXPORTED_YES 1 |
226 | #define VAR_EXPORTED_ALL 2 | | 226 | #define VAR_EXPORTED_ALL 2 |
227 | static int var_exportedVars = VAR_EXPORTED_NONE; | | 227 | static int var_exportedVars = VAR_EXPORTED_NONE; |
228 | /* | | 228 | /* |
229 | * We pass this to Var_Export when doing the initial export | | 229 | * We pass this to Var_Export when doing the initial export |
230 | * or after updating an exported var. | | 230 | * or after updating an exported var. |
231 | */ | | 231 | */ |
232 | #define VAR_EXPORT_PARENT 1 | | 232 | #define VAR_EXPORT_PARENT 1 |
233 | /* | | 233 | /* |
234 | * We pass this to Var_Export1 to tell it to leave the value alone. | | 234 | * We pass this to Var_Export1 to tell it to leave the value alone. |
235 | */ | | 235 | */ |
236 | #define VAR_EXPORT_LITERAL 2 | | 236 | #define VAR_EXPORT_LITERAL 2 |
237 | | | 237 | |
238 | typedef enum { | | 238 | typedef enum { |
239 | VAR_SUB_GLOBAL = 0x01, /* Apply substitution globally */ | | 239 | VAR_SUB_GLOBAL = 0x01, /* Apply substitution globally */ |
240 | VAR_SUB_ONE = 0x02, /* Apply substitution to one word */ | | 240 | VAR_SUB_ONE = 0x02, /* Apply substitution to one word */ |
241 | VAR_SUB_MATCHED = 0x04, /* There was a match */ | | 241 | VAR_SUB_MATCHED = 0x04, /* There was a match */ |
242 | VAR_MATCH_START = 0x08, /* Match at start of word */ | | 242 | VAR_MATCH_START = 0x08, /* Match at start of word */ |
243 | VAR_MATCH_END = 0x10, /* Match at end of word */ | | 243 | VAR_MATCH_END = 0x10, /* Match at end of word */ |
244 | VAR_NOSUBST = 0x20 /* don't expand vars in VarGetPattern */ | | 244 | VAR_NOSUBST = 0x20 /* don't expand vars in VarGetPattern */ |
245 | } VarPattern_Flags; | | 245 | } VarPattern_Flags; |
246 | | | 246 | |
247 | typedef enum { | | 247 | typedef enum { |
248 | VAR_NO_EXPORT = 0x01 /* do not export */ | | 248 | VAR_NO_EXPORT = 0x01 /* do not export */ |
249 | } VarSet_Flags; | | 249 | } VarSet_Flags; |
250 | | | 250 | |
251 | typedef struct { | | 251 | typedef struct { |
252 | /* | | 252 | /* |
253 | * The following fields are set by Var_Parse() when it | | 253 | * The following fields are set by Var_Parse() when it |
254 | * encounters modifiers that need to keep state for use by | | 254 | * encounters modifiers that need to keep state for use by |
255 | * subsequent modifiers within the same variable expansion. | | 255 | * subsequent modifiers within the same variable expansion. |
256 | */ | | 256 | */ |
257 | Byte varSpace; /* Word separator in expansions */ | | 257 | Byte varSpace; /* Word separator in expansions */ |
258 | Boolean oneBigWord; /* TRUE if we will treat the variable as a | | 258 | Boolean oneBigWord; /* TRUE if we will treat the variable as a |
259 | * single big word, even if it contains | | 259 | * single big word, even if it contains |
260 | * embedded spaces (as opposed to the | | 260 | * embedded spaces (as opposed to the |
261 | * usual behaviour of treating it as | | 261 | * usual behaviour of treating it as |
262 | * several space-separated words). */ | | 262 | * several space-separated words). */ |
263 | } Var_Parse_State; | | 263 | } Var_Parse_State; |
264 | | | 264 | |
265 | /* struct passed as 'void *' to VarSubstitute() for ":S/lhs/rhs/", | | 265 | /* struct passed as 'void *' to VarSubstitute() for ":S/lhs/rhs/", |
266 | * to VarSYSVMatch() for ":lhs=rhs". */ | | 266 | * to VarSYSVMatch() for ":lhs=rhs". */ |
267 | typedef struct { | | 267 | typedef struct { |
268 | const char *lhs; /* String to match */ | | 268 | const char *lhs; /* String to match */ |
269 | int leftLen; /* Length of string */ | | 269 | int leftLen; /* Length of string */ |
270 | const char *rhs; /* Replacement string (w/ &'s removed) */ | | 270 | const char *rhs; /* Replacement string (w/ &'s removed) */ |
271 | int rightLen; /* Length of replacement */ | | 271 | int rightLen; /* Length of replacement */ |
272 | VarPattern_Flags flags; | | 272 | VarPattern_Flags flags; |
273 | } VarPattern; | | 273 | } VarPattern; |
274 | | | 274 | |
275 | /* struct passed as 'void *' to VarLoopExpand() for ":@tvar@str@" */ | | 275 | /* struct passed as 'void *' to VarLoopExpand() for ":@tvar@str@" */ |
276 | typedef struct { | | 276 | typedef struct { |
277 | GNode *ctxt; /* variable context */ | | 277 | GNode *ctxt; /* variable context */ |
278 | char *tvar; /* name of temp var */ | | 278 | char *tvar; /* name of temp var */ |
279 | int tvarLen; | | 279 | int tvarLen; |
280 | char *str; /* string to expand */ | | 280 | char *str; /* string to expand */ |
281 | int strLen; | | 281 | int strLen; |
282 | Varf_Flags flags; | | 282 | Varf_Flags flags; |
283 | } VarLoop_t; | | 283 | } VarLoop_t; |
284 | | | 284 | |
285 | #ifndef NO_REGEX | | 285 | #ifndef NO_REGEX |
286 | /* struct passed as 'void *' to VarRESubstitute() for ":C///" */ | | 286 | /* struct passed as 'void *' to VarRESubstitute() for ":C///" */ |
287 | typedef struct { | | 287 | typedef struct { |
288 | regex_t re; | | 288 | regex_t re; |
289 | int nsub; | | 289 | int nsub; |
290 | regmatch_t *matches; | | 290 | regmatch_t *matches; |
291 | char *replace; | | 291 | char *replace; |
292 | int flags; | | 292 | int flags; |
293 | } VarREPattern; | | 293 | } VarREPattern; |
294 | #endif | | 294 | #endif |
295 | | | 295 | |
296 | /* struct passed to VarSelectWords() for ":[start..end]" */ | | 296 | /* struct passed to VarSelectWords() for ":[start..end]" */ |
297 | typedef struct { | | 297 | typedef struct { |
298 | int start; /* first word to select */ | | 298 | int start; /* first word to select */ |
299 | int end; /* last word to select */ | | 299 | int end; /* last word to select */ |
300 | } VarSelectWords_t; | | 300 | } VarSelectWords_t; |
301 | | | 301 | |
302 | static char *VarGetPattern(GNode *, Var_Parse_State *, | | | |
303 | VarPattern_Flags, const char **, int, | | | |
304 | VarPattern_Flags *, int *, VarPattern *); | | | |
305 | static char *VarQuote(char *, Boolean); | | | |
306 | static char *VarHash(char *); | | | |
307 | static char *VarModify(GNode *, Var_Parse_State *, | | | |
308 | const char *, | | | |
309 | Boolean (*)(GNode *, Var_Parse_State *, char *, Boolean, Buffer *, void *), | | | |
310 | void *); | | | |
311 | static char *VarOrder(const char *, const char); | | | |
312 | static char *VarUniq(const char *); | | | |
313 | static int VarWordCompare(const void *, const void *); | | | |
314 | | | | |
315 | #define BROPEN '{' | | 302 | #define BROPEN '{' |
316 | #define BRCLOSE '}' | | 303 | #define BRCLOSE '}' |
317 | #define PROPEN '(' | | 304 | #define PROPEN '(' |
318 | #define PRCLOSE ')' | | 305 | #define PRCLOSE ')' |
319 | | | 306 | |
320 | /*- | | 307 | /*- |
321 | *----------------------------------------------------------------------- | | 308 | *----------------------------------------------------------------------- |
322 | * VarFind -- | | 309 | * VarFind -- |
323 | * Find the given variable in the given context and any other contexts | | 310 | * Find the given variable in the given context and any other contexts |
324 | * indicated. | | 311 | * indicated. |
325 | * | | 312 | * |
326 | * Input: | | 313 | * Input: |
327 | * name name to find | | 314 | * name name to find |
328 | * ctxt context in which to find it | | 315 | * ctxt context in which to find it |
329 | * flags FIND_GLOBAL set means to look in the | | 316 | * flags FIND_GLOBAL set means to look in the |
330 | * VAR_GLOBAL context as well. FIND_CMD set means | | 317 | * VAR_GLOBAL context as well. FIND_CMD set means |
331 | * to look in the VAR_CMD context also. FIND_ENV | | 318 | * to look in the VAR_CMD context also. FIND_ENV |
332 | * set means to look in the environment | | 319 | * set means to look in the environment |
333 | * | | 320 | * |
334 | * Results: | | 321 | * Results: |
335 | * A pointer to the structure describing the desired variable or | | 322 | * A pointer to the structure describing the desired variable or |
336 | * NULL if the variable does not exist. | | 323 | * NULL if the variable does not exist. |
337 | * | | 324 | * |
338 | * Side Effects: | | 325 | * Side Effects: |
339 | * None | | 326 | * None |
340 | *----------------------------------------------------------------------- | | 327 | *----------------------------------------------------------------------- |
341 | */ | | 328 | */ |
342 | static Var * | | 329 | static Var * |
343 | VarFind(const char *name, GNode *ctxt, int flags) | | 330 | VarFind(const char *name, GNode *ctxt, int flags) |
344 | { | | 331 | { |
345 | Hash_Entry *var; | | 332 | Hash_Entry *var; |
346 | Var *v; | | 333 | Var *v; |
347 | | | 334 | |
348 | /* | | 335 | /* |
349 | * If the variable name begins with a '.', it could very well be one of | | 336 | * If the variable name begins with a '.', it could very well be one of |
350 | * the local ones. We check the name against all the local variables | | 337 | * the local ones. We check the name against all the local variables |
351 | * and substitute the short version in for 'name' if it matches one of | | 338 | * and substitute the short version in for 'name' if it matches one of |
352 | * them. | | 339 | * them. |
353 | */ | | 340 | */ |
354 | if (*name == '.' && isupper((unsigned char) name[1])) { | | 341 | if (*name == '.' && isupper((unsigned char) name[1])) { |
355 | switch (name[1]) { | | 342 | switch (name[1]) { |
356 | case 'A': | | 343 | case 'A': |
357 | if (!strcmp(name, ".ALLSRC")) | | 344 | if (!strcmp(name, ".ALLSRC")) |
358 | name = ALLSRC; | | 345 | name = ALLSRC; |
359 | if (!strcmp(name, ".ARCHIVE")) | | 346 | if (!strcmp(name, ".ARCHIVE")) |
360 | name = ARCHIVE; | | 347 | name = ARCHIVE; |
361 | break; | | 348 | break; |
362 | case 'I': | | 349 | case 'I': |
363 | if (!strcmp(name, ".IMPSRC")) | | 350 | if (!strcmp(name, ".IMPSRC")) |
364 | name = IMPSRC; | | 351 | name = IMPSRC; |
365 | break; | | 352 | break; |
366 | case 'M': | | 353 | case 'M': |
367 | if (!strcmp(name, ".MEMBER")) | | 354 | if (!strcmp(name, ".MEMBER")) |
368 | name = MEMBER; | | 355 | name = MEMBER; |
369 | break; | | 356 | break; |
370 | case 'O': | | 357 | case 'O': |
371 | if (!strcmp(name, ".OODATE")) | | 358 | if (!strcmp(name, ".OODATE")) |
372 | name = OODATE; | | 359 | name = OODATE; |
373 | break; | | 360 | break; |
374 | case 'P': | | 361 | case 'P': |
375 | if (!strcmp(name, ".PREFIX")) | | 362 | if (!strcmp(name, ".PREFIX")) |
376 | name = PREFIX; | | 363 | name = PREFIX; |
377 | break; | | 364 | break; |
378 | case 'T': | | 365 | case 'T': |
379 | if (!strcmp(name, ".TARGET")) | | 366 | if (!strcmp(name, ".TARGET")) |
380 | name = TARGET; | | 367 | name = TARGET; |
381 | break; | | 368 | break; |
382 | } | | 369 | } |
383 | } | | 370 | } |
384 | | | 371 | |
385 | #ifdef notyet | | 372 | #ifdef notyet |
386 | /* for compatibility with gmake */ | | 373 | /* for compatibility with gmake */ |
387 | if (name[0] == '^' && name[1] == '\0') | | 374 | if (name[0] == '^' && name[1] == '\0') |
388 | name = ALLSRC; | | 375 | name = ALLSRC; |
389 | #endif | | 376 | #endif |
390 | | | 377 | |
391 | /* | | 378 | /* |
392 | * First look for the variable in the given context. If it's not there, | | 379 | * First look for the variable in the given context. If it's not there, |
393 | * look for it in VAR_CMD, VAR_GLOBAL and the environment, in that order, | | 380 | * look for it in VAR_CMD, VAR_GLOBAL and the environment, in that order, |
394 | * depending on the FIND_* flags in 'flags' | | 381 | * depending on the FIND_* flags in 'flags' |
395 | */ | | 382 | */ |
396 | var = Hash_FindEntry(&ctxt->context, name); | | 383 | var = Hash_FindEntry(&ctxt->context, name); |
397 | | | 384 | |
398 | if (var == NULL && (flags & FIND_CMD) && ctxt != VAR_CMD) { | | 385 | if (var == NULL && (flags & FIND_CMD) && ctxt != VAR_CMD) { |
399 | var = Hash_FindEntry(&VAR_CMD->context, name); | | 386 | var = Hash_FindEntry(&VAR_CMD->context, name); |
400 | } | | 387 | } |
401 | if (!checkEnvFirst && var == NULL && (flags & FIND_GLOBAL) && | | 388 | if (!checkEnvFirst && var == NULL && (flags & FIND_GLOBAL) && |
402 | ctxt != VAR_GLOBAL) | | 389 | ctxt != VAR_GLOBAL) |
403 | { | | 390 | { |
404 | var = Hash_FindEntry(&VAR_GLOBAL->context, name); | | 391 | var = Hash_FindEntry(&VAR_GLOBAL->context, name); |
405 | if (var == NULL && ctxt != VAR_INTERNAL) { | | 392 | if (var == NULL && ctxt != VAR_INTERNAL) { |
406 | /* VAR_INTERNAL is subordinate to VAR_GLOBAL */ | | 393 | /* VAR_INTERNAL is subordinate to VAR_GLOBAL */ |
407 | var = Hash_FindEntry(&VAR_INTERNAL->context, name); | | 394 | var = Hash_FindEntry(&VAR_INTERNAL->context, name); |
408 | } | | 395 | } |
409 | } | | 396 | } |
410 | if (var == NULL && (flags & FIND_ENV)) { | | 397 | if (var == NULL && (flags & FIND_ENV)) { |
411 | char *env; | | 398 | char *env; |
412 | | | 399 | |
413 | if ((env = getenv(name)) != NULL) { | | 400 | if ((env = getenv(name)) != NULL) { |
414 | int len; | | 401 | int len; |
415 | | | 402 | |
416 | v = bmake_malloc(sizeof(Var)); | | 403 | v = bmake_malloc(sizeof(Var)); |
417 | v->name = bmake_strdup(name); | | 404 | v->name = bmake_strdup(name); |
418 | | | 405 | |
419 | len = strlen(env); | | 406 | len = strlen(env); |
420 | | | 407 | |
421 | Buf_Init(&v->val, len + 1); | | 408 | Buf_Init(&v->val, len + 1); |
422 | Buf_AddBytes(&v->val, len, env); | | 409 | Buf_AddBytes(&v->val, len, env); |
423 | | | 410 | |
424 | v->flags = VAR_FROM_ENV; | | 411 | v->flags = VAR_FROM_ENV; |
425 | return v; | | 412 | return v; |
426 | } else if (checkEnvFirst && (flags & FIND_GLOBAL) && | | 413 | } else if (checkEnvFirst && (flags & FIND_GLOBAL) && |
427 | ctxt != VAR_GLOBAL) | | 414 | ctxt != VAR_GLOBAL) |
428 | { | | 415 | { |
429 | var = Hash_FindEntry(&VAR_GLOBAL->context, name); | | 416 | var = Hash_FindEntry(&VAR_GLOBAL->context, name); |
430 | if (var == NULL && ctxt != VAR_INTERNAL) { | | 417 | if (var == NULL && ctxt != VAR_INTERNAL) { |
431 | var = Hash_FindEntry(&VAR_INTERNAL->context, name); | | 418 | var = Hash_FindEntry(&VAR_INTERNAL->context, name); |
432 | } | | 419 | } |
433 | if (var == NULL) { | | 420 | if (var == NULL) { |
434 | return NULL; | | 421 | return NULL; |
435 | } else { | | 422 | } else { |
436 | return (Var *)Hash_GetValue(var); | | 423 | return (Var *)Hash_GetValue(var); |
437 | } | | 424 | } |
438 | } else { | | 425 | } else { |
439 | return NULL; | | 426 | return NULL; |
440 | } | | 427 | } |
441 | } else if (var == NULL) { | | 428 | } else if (var == NULL) { |
442 | return NULL; | | 429 | return NULL; |
443 | } else { | | 430 | } else { |
444 | return (Var *)Hash_GetValue(var); | | 431 | return (Var *)Hash_GetValue(var); |
445 | } | | 432 | } |
446 | } | | 433 | } |
447 | | | 434 | |
448 | /*- | | 435 | /*- |
449 | *----------------------------------------------------------------------- | | 436 | *----------------------------------------------------------------------- |
450 | * VarFreeEnv -- | | 437 | * VarFreeEnv -- |
451 | * If the variable is an environment variable, free it | | 438 | * If the variable is an environment variable, free it |
452 | * | | 439 | * |
453 | * Input: | | 440 | * Input: |
454 | * v the variable | | 441 | * v the variable |
455 | * destroy true if the value buffer should be destroyed. | | 442 | * destroy true if the value buffer should be destroyed. |
456 | * | | 443 | * |
457 | * Results: | | 444 | * Results: |
458 | * 1 if it is an environment variable 0 ow. | | 445 | * 1 if it is an environment variable 0 ow. |
459 | * | | 446 | * |
460 | * Side Effects: | | 447 | * Side Effects: |
461 | * The variable is free'ed if it is an environent variable. | | 448 | * The variable is free'ed if it is an environent variable. |
462 | *----------------------------------------------------------------------- | | 449 | *----------------------------------------------------------------------- |
463 | */ | | 450 | */ |
464 | static Boolean | | 451 | static Boolean |
465 | VarFreeEnv(Var *v, Boolean destroy) | | 452 | VarFreeEnv(Var *v, Boolean destroy) |
466 | { | | 453 | { |
467 | if ((v->flags & VAR_FROM_ENV) == 0) | | 454 | if ((v->flags & VAR_FROM_ENV) == 0) |
468 | return FALSE; | | 455 | return FALSE; |
469 | free(v->name); | | 456 | free(v->name); |
470 | Buf_Destroy(&v->val, destroy); | | 457 | Buf_Destroy(&v->val, destroy); |
471 | free(v); | | 458 | free(v); |
472 | return TRUE; | | 459 | return TRUE; |
473 | } | | 460 | } |
474 | | | 461 | |
475 | /*- | | 462 | /*- |
476 | *----------------------------------------------------------------------- | | 463 | *----------------------------------------------------------------------- |
477 | * VarAdd -- | | 464 | * VarAdd -- |
478 | * Add a new variable of name name and value val to the given context | | 465 | * Add a new variable of name name and value val to the given context |
479 | * | | 466 | * |
480 | * Input: | | 467 | * Input: |
481 | * name name of variable to add | | 468 | * name name of variable to add |
482 | * val value to set it to | | 469 | * val value to set it to |
483 | * ctxt context in which to set it | | 470 | * ctxt context in which to set it |
484 | * | | 471 | * |
485 | * Results: | | 472 | * Results: |
486 | * None | | 473 | * None |
487 | * | | 474 | * |
488 | * Side Effects: | | 475 | * Side Effects: |
489 | * The new variable is placed at the front of the given context | | 476 | * The new variable is placed at the front of the given context |
490 | * The name and val arguments are duplicated so they may | | 477 | * The name and val arguments are duplicated so they may |
491 | * safely be freed. | | 478 | * safely be freed. |
492 | *----------------------------------------------------------------------- | | 479 | *----------------------------------------------------------------------- |
493 | */ | | 480 | */ |
494 | static void | | 481 | static void |
495 | VarAdd(const char *name, const char *val, GNode *ctxt) | | 482 | VarAdd(const char *name, const char *val, GNode *ctxt) |
496 | { | | 483 | { |
497 | Var *v; | | 484 | Var *v; |
498 | int len; | | 485 | int len; |
499 | Hash_Entry *h; | | 486 | Hash_Entry *h; |
500 | | | 487 | |
501 | v = bmake_malloc(sizeof(Var)); | | 488 | v = bmake_malloc(sizeof(Var)); |
502 | | | 489 | |
503 | len = val ? strlen(val) : 0; | | 490 | len = val ? strlen(val) : 0; |
504 | Buf_Init(&v->val, len + 1); | | 491 | Buf_Init(&v->val, len + 1); |
505 | Buf_AddBytes(&v->val, len, val); | | 492 | Buf_AddBytes(&v->val, len, val); |
506 | | | 493 | |
507 | v->flags = 0; | | 494 | v->flags = 0; |
508 | | | 495 | |
509 | h = Hash_CreateEntry(&ctxt->context, name, NULL); | | 496 | h = Hash_CreateEntry(&ctxt->context, name, NULL); |
510 | Hash_SetValue(h, v); | | 497 | Hash_SetValue(h, v); |
511 | v->name = h->name; | | 498 | v->name = h->name; |
512 | if (DEBUG(VAR) && (ctxt->flags & INTERNAL) == 0) { | | 499 | if (DEBUG(VAR) && (ctxt->flags & INTERNAL) == 0) { |
513 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); | | 500 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); |
514 | } | | 501 | } |
515 | } | | 502 | } |
516 | | | 503 | |
517 | /*- | | 504 | /*- |
518 | *----------------------------------------------------------------------- | | 505 | *----------------------------------------------------------------------- |
519 | * Var_Delete -- | | 506 | * Var_Delete -- |
520 | * Remove a variable from a context. | | 507 | * Remove a variable from a context. |
521 | * | | 508 | * |
522 | * Results: | | 509 | * Results: |
523 | * None. | | 510 | * None. |
524 | * | | 511 | * |
525 | * Side Effects: | | 512 | * Side Effects: |
526 | * The Var structure is removed and freed. | | 513 | * The Var structure is removed and freed. |
527 | * | | 514 | * |
528 | *----------------------------------------------------------------------- | | 515 | *----------------------------------------------------------------------- |
529 | */ | | 516 | */ |
530 | void | | 517 | void |
531 | Var_Delete(const char *name, GNode *ctxt) | | 518 | Var_Delete(const char *name, GNode *ctxt) |
532 | { | | 519 | { |
533 | Hash_Entry *ln; | | 520 | Hash_Entry *ln; |
534 | char *cp; | | 521 | char *cp; |
535 | | | 522 | |
536 | if (strchr(name, '$')) { | | 523 | if (strchr(name, '$')) { |
537 | cp = Var_Subst(NULL, name, VAR_GLOBAL, VARF_WANTRES); | | 524 | cp = Var_Subst(NULL, name, VAR_GLOBAL, VARF_WANTRES); |
538 | } else { | | 525 | } else { |
539 | cp = (char *)name; | | 526 | cp = (char *)name; |
540 | } | | 527 | } |
541 | ln = Hash_FindEntry(&ctxt->context, cp); | | 528 | ln = Hash_FindEntry(&ctxt->context, cp); |
542 | if (DEBUG(VAR)) { | | 529 | if (DEBUG(VAR)) { |
543 | fprintf(debug_file, "%s:delete %s%s\n", | | 530 | fprintf(debug_file, "%s:delete %s%s\n", |
544 | ctxt->name, cp, ln ? "" : " (not found)"); | | 531 | ctxt->name, cp, ln ? "" : " (not found)"); |
545 | } | | 532 | } |
546 | if (cp != name) { | | 533 | if (cp != name) { |
547 | free(cp); | | 534 | free(cp); |
548 | } | | 535 | } |
549 | if (ln != NULL) { | | 536 | if (ln != NULL) { |
550 | Var *v; | | 537 | Var *v; |
551 | | | 538 | |
552 | v = (Var *)Hash_GetValue(ln); | | 539 | v = (Var *)Hash_GetValue(ln); |
553 | if ((v->flags & VAR_EXPORTED)) { | | 540 | if ((v->flags & VAR_EXPORTED)) { |
554 | unsetenv(v->name); | | 541 | unsetenv(v->name); |
555 | } | | 542 | } |
556 | if (strcmp(MAKE_EXPORTED, v->name) == 0) { | | 543 | if (strcmp(MAKE_EXPORTED, v->name) == 0) { |
557 | var_exportedVars = VAR_EXPORTED_NONE; | | 544 | var_exportedVars = VAR_EXPORTED_NONE; |
558 | } | | 545 | } |
559 | if (v->name != ln->name) | | 546 | if (v->name != ln->name) |
560 | free(v->name); | | 547 | free(v->name); |
561 | Hash_DeleteEntry(&ctxt->context, ln); | | 548 | Hash_DeleteEntry(&ctxt->context, ln); |
562 | Buf_Destroy(&v->val, TRUE); | | 549 | Buf_Destroy(&v->val, TRUE); |
563 | free(v); | | 550 | free(v); |
564 | } | | 551 | } |
565 | } | | 552 | } |
566 | | | 553 | |
567 | | | 554 | |
568 | /* | | 555 | /* |
569 | * Export a var. | | 556 | * Export a var. |
570 | * We ignore make internal variables (those which start with '.') | | 557 | * We ignore make internal variables (those which start with '.') |
571 | * Also we jump through some hoops to avoid calling setenv | | 558 | * Also we jump through some hoops to avoid calling setenv |
572 | * more than necessary since it can leak. | | 559 | * more than necessary since it can leak. |
573 | * We only manipulate flags of vars if 'parent' is set. | | 560 | * We only manipulate flags of vars if 'parent' is set. |
574 | */ | | 561 | */ |
575 | static int | | 562 | static int |
576 | Var_Export1(const char *name, int flags) | | 563 | Var_Export1(const char *name, int flags) |
577 | { | | 564 | { |
578 | char tmp[BUFSIZ]; | | 565 | char tmp[BUFSIZ]; |
579 | Var *v; | | 566 | Var *v; |
580 | char *val = NULL; | | 567 | char *val = NULL; |
581 | int n; | | 568 | int n; |
582 | int parent = (flags & VAR_EXPORT_PARENT); | | 569 | int parent = (flags & VAR_EXPORT_PARENT); |
583 | | | 570 | |
584 | if (*name == '.') | | 571 | if (*name == '.') |
585 | return 0; /* skip internals */ | | 572 | return 0; /* skip internals */ |
586 | if (!name[1]) { | | 573 | if (!name[1]) { |
587 | /* | | 574 | /* |
588 | * A single char. | | 575 | * A single char. |
589 | * If it is one of the vars that should only appear in | | 576 | * If it is one of the vars that should only appear in |
590 | * local context, skip it, else we can get Var_Subst | | 577 | * local context, skip it, else we can get Var_Subst |
591 | * into a loop. | | 578 | * into a loop. |
592 | */ | | 579 | */ |
593 | switch (name[0]) { | | 580 | switch (name[0]) { |
594 | case '@': | | 581 | case '@': |
595 | case '%': | | 582 | case '%': |
596 | case '*': | | 583 | case '*': |
597 | case '!': | | 584 | case '!': |
598 | return 0; | | 585 | return 0; |
599 | } | | 586 | } |
600 | } | | 587 | } |
601 | v = VarFind(name, VAR_GLOBAL, 0); | | 588 | v = VarFind(name, VAR_GLOBAL, 0); |
602 | if (v == NULL) { | | 589 | if (v == NULL) { |
603 | return 0; | | 590 | return 0; |
604 | } | | 591 | } |
605 | if (!parent && | | 592 | if (!parent && |
606 | (v->flags & (VAR_EXPORTED|VAR_REEXPORT)) == VAR_EXPORTED) { | | 593 | (v->flags & (VAR_EXPORTED|VAR_REEXPORT)) == VAR_EXPORTED) { |
607 | return 0; /* nothing to do */ | | 594 | return 0; /* nothing to do */ |
608 | } | | 595 | } |
609 | val = Buf_GetAll(&v->val, NULL); | | 596 | val = Buf_GetAll(&v->val, NULL); |
610 | if ((flags & VAR_EXPORT_LITERAL) == 0 && strchr(val, '$')) { | | 597 | if ((flags & VAR_EXPORT_LITERAL) == 0 && strchr(val, '$')) { |
611 | if (parent) { | | 598 | if (parent) { |
612 | /* | | 599 | /* |
613 | * Flag this as something we need to re-export. | | 600 | * Flag this as something we need to re-export. |
614 | * No point actually exporting it now though, | | 601 | * No point actually exporting it now though, |
615 | * the child can do it at the last minute. | | 602 | * the child can do it at the last minute. |
616 | */ | | 603 | */ |
617 | v->flags |= (VAR_EXPORTED|VAR_REEXPORT); | | 604 | v->flags |= (VAR_EXPORTED|VAR_REEXPORT); |
618 | return 1; | | 605 | return 1; |
619 | } | | 606 | } |
620 | if (v->flags & VAR_IN_USE) { | | 607 | if (v->flags & VAR_IN_USE) { |
621 | /* | | 608 | /* |
622 | * We recursed while exporting in a child. | | 609 | * We recursed while exporting in a child. |
623 | * This isn't going to end well, just skip it. | | 610 | * This isn't going to end well, just skip it. |
624 | */ | | 611 | */ |
625 | return 0; | | 612 | return 0; |
626 | } | | 613 | } |
627 | n = snprintf(tmp, sizeof(tmp), "${%s}", name); | | 614 | n = snprintf(tmp, sizeof(tmp), "${%s}", name); |
628 | if (n < (int)sizeof(tmp)) { | | 615 | if (n < (int)sizeof(tmp)) { |
629 | val = Var_Subst(NULL, tmp, VAR_GLOBAL, VARF_WANTRES); | | 616 | val = Var_Subst(NULL, tmp, VAR_GLOBAL, VARF_WANTRES); |
630 | setenv(name, val, 1); | | 617 | setenv(name, val, 1); |
631 | free(val); | | 618 | free(val); |
632 | } | | 619 | } |
633 | } else { | | 620 | } else { |
634 | if (parent) { | | 621 | if (parent) { |
635 | v->flags &= ~VAR_REEXPORT; /* once will do */ | | 622 | v->flags &= ~VAR_REEXPORT; /* once will do */ |
636 | } | | 623 | } |
637 | if (parent || !(v->flags & VAR_EXPORTED)) { | | 624 | if (parent || !(v->flags & VAR_EXPORTED)) { |
638 | setenv(name, val, 1); | | 625 | setenv(name, val, 1); |
639 | } | | 626 | } |
640 | } | | 627 | } |
641 | /* | | 628 | /* |
642 | * This is so Var_Set knows to call Var_Export again... | | 629 | * This is so Var_Set knows to call Var_Export again... |
643 | */ | | 630 | */ |
644 | if (parent) { | | 631 | if (parent) { |
645 | v->flags |= VAR_EXPORTED; | | 632 | v->flags |= VAR_EXPORTED; |
646 | } | | 633 | } |
647 | return 1; | | 634 | return 1; |
648 | } | | 635 | } |
649 | | | 636 | |
650 | static void | | 637 | static void |
651 | Var_ExportVars_callback(void *entry, void *unused MAKE_ATTR_UNUSED) | | 638 | Var_ExportVars_callback(void *entry, void *unused MAKE_ATTR_UNUSED) |
652 | { | | 639 | { |
653 | Var *var = entry; | | 640 | Var *var = entry; |
654 | Var_Export1(var->name, 0); | | 641 | Var_Export1(var->name, 0); |
655 | } | | 642 | } |
656 | | | 643 | |
657 | /* | | 644 | /* |
658 | * This gets called from our children. | | 645 | * This gets called from our children. |
659 | */ | | 646 | */ |
660 | void | | 647 | void |
661 | Var_ExportVars(void) | | 648 | Var_ExportVars(void) |
662 | { | | 649 | { |
663 | char tmp[BUFSIZ]; | | 650 | char tmp[BUFSIZ]; |
664 | char *val; | | 651 | char *val; |
665 | int n; | | 652 | int n; |
666 | | | 653 | |
667 | /* | | 654 | /* |
668 | * Several make's support this sort of mechanism for tracking | | 655 | * Several make's support this sort of mechanism for tracking |
669 | * recursion - but each uses a different name. | | 656 | * recursion - but each uses a different name. |
670 | * We allow the makefiles to update MAKELEVEL and ensure | | 657 | * We allow the makefiles to update MAKELEVEL and ensure |
671 | * children see a correctly incremented value. | | 658 | * children see a correctly incremented value. |
672 | */ | | 659 | */ |
673 | snprintf(tmp, sizeof(tmp), "%d", makelevel + 1); | | 660 | snprintf(tmp, sizeof(tmp), "%d", makelevel + 1); |
674 | setenv(MAKE_LEVEL_ENV, tmp, 1); | | 661 | setenv(MAKE_LEVEL_ENV, tmp, 1); |
675 | | | 662 | |
676 | if (VAR_EXPORTED_NONE == var_exportedVars) | | 663 | if (VAR_EXPORTED_NONE == var_exportedVars) |
677 | return; | | 664 | return; |
678 | | | 665 | |
679 | if (VAR_EXPORTED_ALL == var_exportedVars) { | | 666 | if (VAR_EXPORTED_ALL == var_exportedVars) { |
680 | /* Ouch! This is crazy... */ | | 667 | /* Ouch! This is crazy... */ |
681 | Hash_ForEach(&VAR_GLOBAL->context, Var_ExportVars_callback, NULL); | | 668 | Hash_ForEach(&VAR_GLOBAL->context, Var_ExportVars_callback, NULL); |
682 | return; | | 669 | return; |
683 | } | | 670 | } |
684 | /* | | 671 | /* |
685 | * We have a number of exported vars, | | 672 | * We have a number of exported vars, |
686 | */ | | 673 | */ |
687 | n = snprintf(tmp, sizeof(tmp), "${" MAKE_EXPORTED ":O:u}"); | | 674 | n = snprintf(tmp, sizeof(tmp), "${" MAKE_EXPORTED ":O:u}"); |
688 | if (n < (int)sizeof(tmp)) { | | 675 | if (n < (int)sizeof(tmp)) { |
689 | char **av; | | 676 | char **av; |
690 | char *as; | | 677 | char *as; |
691 | int ac; | | 678 | int ac; |
692 | int i; | | 679 | int i; |
693 | | | 680 | |
694 | val = Var_Subst(NULL, tmp, VAR_GLOBAL, VARF_WANTRES); | | 681 | val = Var_Subst(NULL, tmp, VAR_GLOBAL, VARF_WANTRES); |
695 | if (*val) { | | 682 | if (*val) { |
696 | av = brk_string(val, &ac, FALSE, &as); | | 683 | av = brk_string(val, &ac, FALSE, &as); |
697 | for (i = 0; i < ac; i++) { | | 684 | for (i = 0; i < ac; i++) { |
698 | Var_Export1(av[i], 0); | | 685 | Var_Export1(av[i], 0); |
699 | } | | 686 | } |
700 | free(as); | | 687 | free(as); |
701 | free(av); | | 688 | free(av); |
702 | } | | 689 | } |
703 | free(val); | | 690 | free(val); |
704 | } | | 691 | } |
705 | } | | 692 | } |
706 | | | 693 | |
707 | /* | | 694 | /* |
708 | * This is called when .export is seen or | | 695 | * This is called when .export is seen or |
709 | * .MAKE.EXPORTED is modified. | | 696 | * .MAKE.EXPORTED is modified. |
710 | * It is also called when any exported var is modified. | | 697 | * It is also called when any exported var is modified. |
711 | */ | | 698 | */ |
712 | void | | 699 | void |
713 | Var_Export(char *str, int isExport) | | 700 | Var_Export(char *str, int isExport) |
714 | { | | 701 | { |
715 | char *name; | | 702 | char *name; |
716 | char *val; | | 703 | char *val; |
717 | char **av; | | 704 | char **av; |
718 | char *as; | | 705 | char *as; |
719 | int flags; | | 706 | int flags; |
720 | int ac; | | 707 | int ac; |
721 | int i; | | 708 | int i; |
722 | | | 709 | |
723 | if (isExport && (!str || !str[0])) { | | 710 | if (isExport && (!str || !str[0])) { |
724 | var_exportedVars = VAR_EXPORTED_ALL; /* use with caution! */ | | 711 | var_exportedVars = VAR_EXPORTED_ALL; /* use with caution! */ |
725 | return; | | 712 | return; |
726 | } | | 713 | } |
727 | | | 714 | |
728 | flags = 0; | | 715 | flags = 0; |
729 | if (strncmp(str, "-env", 4) == 0) { | | 716 | if (strncmp(str, "-env", 4) == 0) { |
730 | str += 4; | | 717 | str += 4; |
731 | } else if (strncmp(str, "-literal", 8) == 0) { | | 718 | } else if (strncmp(str, "-literal", 8) == 0) { |
732 | str += 8; | | 719 | str += 8; |
733 | flags |= VAR_EXPORT_LITERAL; | | 720 | flags |= VAR_EXPORT_LITERAL; |
734 | } else { | | 721 | } else { |
735 | flags |= VAR_EXPORT_PARENT; | | 722 | flags |= VAR_EXPORT_PARENT; |
736 | } | | 723 | } |
737 | val = Var_Subst(NULL, str, VAR_GLOBAL, VARF_WANTRES); | | 724 | val = Var_Subst(NULL, str, VAR_GLOBAL, VARF_WANTRES); |
738 | if (*val) { | | 725 | if (*val) { |
739 | av = brk_string(val, &ac, FALSE, &as); | | 726 | av = brk_string(val, &ac, FALSE, &as); |
740 | for (i = 0; i < ac; i++) { | | 727 | for (i = 0; i < ac; i++) { |
741 | name = av[i]; | | 728 | name = av[i]; |
742 | if (!name[1]) { | | 729 | if (!name[1]) { |
743 | /* | | 730 | /* |
744 | * A single char. | | 731 | * A single char. |
745 | * If it is one of the vars that should only appear in | | 732 | * If it is one of the vars that should only appear in |
746 | * local context, skip it, else we can get Var_Subst | | 733 | * local context, skip it, else we can get Var_Subst |
747 | * into a loop. | | 734 | * into a loop. |
748 | */ | | 735 | */ |
749 | switch (name[0]) { | | 736 | switch (name[0]) { |
750 | case '@': | | 737 | case '@': |
751 | case '%': | | 738 | case '%': |
752 | case '*': | | 739 | case '*': |
753 | case '!': | | 740 | case '!': |
754 | continue; | | 741 | continue; |
755 | } | | 742 | } |
756 | } | | 743 | } |
757 | if (Var_Export1(name, flags)) { | | 744 | if (Var_Export1(name, flags)) { |
758 | if (VAR_EXPORTED_ALL != var_exportedVars) | | 745 | if (VAR_EXPORTED_ALL != var_exportedVars) |
759 | var_exportedVars = VAR_EXPORTED_YES; | | 746 | var_exportedVars = VAR_EXPORTED_YES; |
760 | if (isExport && (flags & VAR_EXPORT_PARENT)) { | | 747 | if (isExport && (flags & VAR_EXPORT_PARENT)) { |
761 | Var_Append(MAKE_EXPORTED, name, VAR_GLOBAL); | | 748 | Var_Append(MAKE_EXPORTED, name, VAR_GLOBAL); |
762 | } | | 749 | } |
763 | } | | 750 | } |
764 | } | | 751 | } |
765 | free(as); | | 752 | free(as); |
766 | free(av); | | 753 | free(av); |
767 | } | | 754 | } |
768 | free(val); | | 755 | free(val); |
769 | } | | 756 | } |
770 | | | 757 | |
771 | | | 758 | |
772 | /* | | 759 | /* |
773 | * This is called when .unexport[-env] is seen. | | 760 | * This is called when .unexport[-env] is seen. |
774 | */ | | 761 | */ |
775 | extern char **environ; | | 762 | extern char **environ; |
776 | | | 763 | |
777 | void | | 764 | void |
778 | Var_UnExport(char *str) | | 765 | Var_UnExport(char *str) |
779 | { | | 766 | { |
780 | char tmp[BUFSIZ]; | | 767 | char tmp[BUFSIZ]; |
781 | char *vlist; | | 768 | char *vlist; |
782 | char *cp; | | 769 | char *cp; |
783 | Boolean unexport_env; | | 770 | Boolean unexport_env; |
784 | int n; | | 771 | int n; |
785 | | | 772 | |
786 | if (!str || !str[0]) { | | 773 | if (!str || !str[0]) { |
787 | return; /* assert? */ | | 774 | return; /* assert? */ |
788 | } | | 775 | } |
789 | | | 776 | |
790 | vlist = NULL; | | 777 | vlist = NULL; |
791 | | | 778 | |
792 | str += 8; | | 779 | str += 8; |
793 | unexport_env = (strncmp(str, "-env", 4) == 0); | | 780 | unexport_env = (strncmp(str, "-env", 4) == 0); |
794 | if (unexport_env) { | | 781 | if (unexport_env) { |
795 | char **newenv; | | 782 | char **newenv; |
796 | | | 783 | |
797 | cp = getenv(MAKE_LEVEL_ENV); /* we should preserve this */ | | 784 | cp = getenv(MAKE_LEVEL_ENV); /* we should preserve this */ |
798 | if (environ == savedEnv) { | | 785 | if (environ == savedEnv) { |
799 | /* we have been here before! */ | | 786 | /* we have been here before! */ |
800 | newenv = bmake_realloc(environ, 2 * sizeof(char *)); | | 787 | newenv = bmake_realloc(environ, 2 * sizeof(char *)); |
801 | } else { | | 788 | } else { |
802 | if (savedEnv) { | | 789 | if (savedEnv) { |
803 | free(savedEnv); | | 790 | free(savedEnv); |
804 | savedEnv = NULL; | | 791 | savedEnv = NULL; |
805 | } | | 792 | } |
806 | newenv = bmake_malloc(2 * sizeof(char *)); | | 793 | newenv = bmake_malloc(2 * sizeof(char *)); |
807 | } | | 794 | } |
808 | if (!newenv) | | 795 | if (!newenv) |
809 | return; | | 796 | return; |
810 | /* Note: we cannot safely free() the original environ. */ | | 797 | /* Note: we cannot safely free() the original environ. */ |
811 | environ = savedEnv = newenv; | | 798 | environ = savedEnv = newenv; |
812 | newenv[0] = NULL; | | 799 | newenv[0] = NULL; |
813 | newenv[1] = NULL; | | 800 | newenv[1] = NULL; |
814 | if (cp && *cp) | | 801 | if (cp && *cp) |
815 | setenv(MAKE_LEVEL_ENV, cp, 1); | | 802 | setenv(MAKE_LEVEL_ENV, cp, 1); |
816 | } else { | | 803 | } else { |
817 | for (; *str != '\n' && isspace((unsigned char) *str); str++) | | 804 | for (; *str != '\n' && isspace((unsigned char) *str); str++) |
818 | continue; | | 805 | continue; |
819 | if (str[0] && str[0] != '\n') { | | 806 | if (str[0] && str[0] != '\n') { |
820 | vlist = str; | | 807 | vlist = str; |
821 | } | | 808 | } |
822 | } | | 809 | } |
823 | | | 810 | |
824 | if (!vlist) { | | 811 | if (!vlist) { |
825 | /* Using .MAKE.EXPORTED */ | | 812 | /* Using .MAKE.EXPORTED */ |
826 | n = snprintf(tmp, sizeof(tmp), "${" MAKE_EXPORTED ":O:u}"); | | 813 | n = snprintf(tmp, sizeof(tmp), "${" MAKE_EXPORTED ":O:u}"); |
827 | if (n < (int)sizeof(tmp)) { | | 814 | if (n < (int)sizeof(tmp)) { |
828 | vlist = Var_Subst(NULL, tmp, VAR_GLOBAL, VARF_WANTRES); | | 815 | vlist = Var_Subst(NULL, tmp, VAR_GLOBAL, VARF_WANTRES); |
829 | } | | 816 | } |
830 | } | | 817 | } |
831 | if (vlist) { | | 818 | if (vlist) { |
832 | Var *v; | | 819 | Var *v; |
833 | char **av; | | 820 | char **av; |
834 | char *as; | | 821 | char *as; |
835 | int ac; | | 822 | int ac; |
836 | int i; | | 823 | int i; |
837 | | | 824 | |
838 | av = brk_string(vlist, &ac, FALSE, &as); | | 825 | av = brk_string(vlist, &ac, FALSE, &as); |
839 | for (i = 0; i < ac; i++) { | | 826 | for (i = 0; i < ac; i++) { |
840 | v = VarFind(av[i], VAR_GLOBAL, 0); | | 827 | v = VarFind(av[i], VAR_GLOBAL, 0); |
841 | if (!v) | | 828 | if (!v) |
842 | continue; | | 829 | continue; |
843 | if (!unexport_env && | | 830 | if (!unexport_env && |
844 | (v->flags & (VAR_EXPORTED|VAR_REEXPORT)) == VAR_EXPORTED) { | | 831 | (v->flags & (VAR_EXPORTED|VAR_REEXPORT)) == VAR_EXPORTED) { |
845 | unsetenv(v->name); | | 832 | unsetenv(v->name); |
846 | } | | 833 | } |
847 | v->flags &= ~(VAR_EXPORTED|VAR_REEXPORT); | | 834 | v->flags &= ~(VAR_EXPORTED|VAR_REEXPORT); |
848 | /* | | 835 | /* |
849 | * If we are unexporting a list, | | 836 | * If we are unexporting a list, |
850 | * remove each one from .MAKE.EXPORTED. | | 837 | * remove each one from .MAKE.EXPORTED. |
851 | * If we are removing them all, | | 838 | * If we are removing them all, |
852 | * just delete .MAKE.EXPORTED below. | | 839 | * just delete .MAKE.EXPORTED below. |
853 | */ | | 840 | */ |
854 | if (vlist == str) { | | 841 | if (vlist == str) { |
855 | n = snprintf(tmp, sizeof(tmp), | | 842 | n = snprintf(tmp, sizeof(tmp), |
856 | "${" MAKE_EXPORTED ":N%s}", v->name); | | 843 | "${" MAKE_EXPORTED ":N%s}", v->name); |
857 | if (n < (int)sizeof(tmp)) { | | 844 | if (n < (int)sizeof(tmp)) { |
858 | cp = Var_Subst(NULL, tmp, VAR_GLOBAL, VARF_WANTRES); | | 845 | cp = Var_Subst(NULL, tmp, VAR_GLOBAL, VARF_WANTRES); |
859 | Var_Set(MAKE_EXPORTED, cp, VAR_GLOBAL); | | 846 | Var_Set(MAKE_EXPORTED, cp, VAR_GLOBAL); |
860 | free(cp); | | 847 | free(cp); |
861 | } | | 848 | } |
862 | } | | 849 | } |
863 | } | | 850 | } |
864 | free(as); | | 851 | free(as); |
865 | free(av); | | 852 | free(av); |
866 | if (vlist != str) { | | 853 | if (vlist != str) { |
867 | Var_Delete(MAKE_EXPORTED, VAR_GLOBAL); | | 854 | Var_Delete(MAKE_EXPORTED, VAR_GLOBAL); |
868 | free(vlist); | | 855 | free(vlist); |
869 | } | | 856 | } |
870 | } | | 857 | } |
871 | } | | 858 | } |
872 | | | 859 | |
873 | static void | | 860 | static void |
874 | Var_Set_with_flags(const char *name, const char *val, GNode *ctxt, | | 861 | Var_Set_with_flags(const char *name, const char *val, GNode *ctxt, |
875 | VarSet_Flags flags) | | 862 | VarSet_Flags flags) |
876 | { | | 863 | { |
877 | Var *v; | | 864 | Var *v; |
878 | char *expanded_name = NULL; | | 865 | char *expanded_name = NULL; |
879 | | | 866 | |
880 | /* | | 867 | /* |
881 | * We only look for a variable in the given context since anything set | | 868 | * We only look for a variable in the given context since anything set |
882 | * here will override anything in a lower context, so there's not much | | 869 | * here will override anything in a lower context, so there's not much |
883 | * point in searching them all just to save a bit of memory... | | 870 | * point in searching them all just to save a bit of memory... |
884 | */ | | 871 | */ |
885 | if (strchr(name, '$') != NULL) { | | 872 | if (strchr(name, '$') != NULL) { |
886 | expanded_name = Var_Subst(NULL, name, ctxt, VARF_WANTRES); | | 873 | expanded_name = Var_Subst(NULL, name, ctxt, VARF_WANTRES); |
887 | if (expanded_name[0] == 0) { | | 874 | if (expanded_name[0] == 0) { |
888 | if (DEBUG(VAR)) { | | 875 | if (DEBUG(VAR)) { |
889 | fprintf(debug_file, "Var_Set(\"%s\", \"%s\", ...) " | | 876 | fprintf(debug_file, "Var_Set(\"%s\", \"%s\", ...) " |
890 | "name expands to empty string - ignored\n", | | 877 | "name expands to empty string - ignored\n", |
891 | name, val); | | 878 | name, val); |
892 | } | | 879 | } |
893 | free(expanded_name); | | 880 | free(expanded_name); |
894 | return; | | 881 | return; |
895 | } | | 882 | } |
896 | name = expanded_name; | | 883 | name = expanded_name; |
897 | } | | 884 | } |
898 | if (ctxt == VAR_GLOBAL) { | | 885 | if (ctxt == VAR_GLOBAL) { |
899 | v = VarFind(name, VAR_CMD, 0); | | 886 | v = VarFind(name, VAR_CMD, 0); |
900 | if (v != NULL) { | | 887 | if (v != NULL) { |
901 | if ((v->flags & VAR_FROM_CMD)) { | | 888 | if ((v->flags & VAR_FROM_CMD)) { |
902 | if (DEBUG(VAR)) { | | 889 | if (DEBUG(VAR)) { |
903 | fprintf(debug_file, "%s:%s = %s ignored!\n", ctxt->name, name, val); | | 890 | fprintf(debug_file, "%s:%s = %s ignored!\n", ctxt->name, name, val); |
904 | } | | 891 | } |
905 | goto out; | | 892 | goto out; |
906 | } | | 893 | } |
907 | VarFreeEnv(v, TRUE); | | 894 | VarFreeEnv(v, TRUE); |
908 | } | | 895 | } |
909 | } | | 896 | } |
910 | v = VarFind(name, ctxt, 0); | | 897 | v = VarFind(name, ctxt, 0); |
911 | if (v == NULL) { | | 898 | if (v == NULL) { |
912 | if (ctxt == VAR_CMD && (flags & VAR_NO_EXPORT) == 0) { | | 899 | if (ctxt == VAR_CMD && (flags & VAR_NO_EXPORT) == 0) { |
913 | /* | | 900 | /* |
914 | * This var would normally prevent the same name being added | | 901 | * This var would normally prevent the same name being added |
915 | * to VAR_GLOBAL, so delete it from there if needed. | | 902 | * to VAR_GLOBAL, so delete it from there if needed. |
916 | * Otherwise -V name may show the wrong value. | | 903 | * Otherwise -V name may show the wrong value. |
917 | */ | | 904 | */ |
918 | Var_Delete(name, VAR_GLOBAL); | | 905 | Var_Delete(name, VAR_GLOBAL); |
919 | } | | 906 | } |
920 | VarAdd(name, val, ctxt); | | 907 | VarAdd(name, val, ctxt); |
921 | } else { | | 908 | } else { |
922 | Buf_Empty(&v->val); | | 909 | Buf_Empty(&v->val); |
923 | if (val) | | 910 | if (val) |
924 | Buf_AddBytes(&v->val, strlen(val), val); | | 911 | Buf_AddBytes(&v->val, strlen(val), val); |
925 | | | 912 | |
926 | if (DEBUG(VAR)) { | | 913 | if (DEBUG(VAR)) { |
927 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); | | 914 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); |
928 | } | | 915 | } |
929 | if ((v->flags & VAR_EXPORTED)) { | | 916 | if ((v->flags & VAR_EXPORTED)) { |
930 | Var_Export1(name, VAR_EXPORT_PARENT); | | 917 | Var_Export1(name, VAR_EXPORT_PARENT); |
931 | } | | 918 | } |
932 | } | | 919 | } |
933 | /* | | 920 | /* |
934 | * Any variables given on the command line are automatically exported | | 921 | * Any variables given on the command line are automatically exported |
935 | * to the environment (as per POSIX standard) | | 922 | * to the environment (as per POSIX standard) |
936 | */ | | 923 | */ |
937 | if (ctxt == VAR_CMD && (flags & VAR_NO_EXPORT) == 0) { | | 924 | if (ctxt == VAR_CMD && (flags & VAR_NO_EXPORT) == 0) { |
938 | if (v == NULL) { | | 925 | if (v == NULL) { |
939 | /* we just added it */ | | 926 | /* we just added it */ |
940 | v = VarFind(name, ctxt, 0); | | 927 | v = VarFind(name, ctxt, 0); |
941 | } | | 928 | } |
942 | if (v != NULL) | | 929 | if (v != NULL) |
943 | v->flags |= VAR_FROM_CMD; | | 930 | v->flags |= VAR_FROM_CMD; |
944 | /* | | 931 | /* |
945 | * If requested, don't export these in the environment | | 932 | * If requested, don't export these in the environment |
946 | * individually. We still put them in MAKEOVERRIDES so | | 933 | * individually. We still put them in MAKEOVERRIDES so |
947 | * that the command-line settings continue to override | | 934 | * that the command-line settings continue to override |
948 | * Makefile settings. | | 935 | * Makefile settings. |
949 | */ | | 936 | */ |
950 | if (varNoExportEnv != TRUE) | | 937 | if (varNoExportEnv != TRUE) |
951 | setenv(name, val ? val : "", 1); | | 938 | setenv(name, val ? val : "", 1); |
952 | | | 939 | |
953 | Var_Append(MAKEOVERRIDES, name, VAR_GLOBAL); | | 940 | Var_Append(MAKEOVERRIDES, name, VAR_GLOBAL); |
954 | } | | 941 | } |
955 | if (*name == '.') { | | 942 | if (*name == '.') { |
956 | if (strcmp(name, SAVE_DOLLARS) == 0) | | 943 | if (strcmp(name, SAVE_DOLLARS) == 0) |
957 | save_dollars = s2Boolean(val, save_dollars); | | 944 | save_dollars = s2Boolean(val, save_dollars); |
958 | } | | 945 | } |
959 | | | 946 | |
960 | out: | | 947 | out: |
961 | free(expanded_name); | | 948 | free(expanded_name); |
962 | if (v != NULL) | | 949 | if (v != NULL) |
963 | VarFreeEnv(v, TRUE); | | 950 | VarFreeEnv(v, TRUE); |
964 | } | | 951 | } |
965 | | | 952 | |
966 | /*- | | 953 | /*- |
967 | *----------------------------------------------------------------------- | | 954 | *----------------------------------------------------------------------- |
968 | * Var_Set -- | | 955 | * Var_Set -- |
969 | * Set the variable name to the value val in the given context. | | 956 | * Set the variable name to the value val in the given context. |
970 | * | | 957 | * |
971 | * Input: | | 958 | * Input: |
972 | * name name of variable to set | | 959 | * name name of variable to set |
973 | * val value to give to the variable | | 960 | * val value to give to the variable |
974 | * ctxt context in which to set it | | 961 | * ctxt context in which to set it |
975 | * | | 962 | * |
976 | * Results: | | 963 | * Results: |
977 | * None. | | 964 | * None. |
978 | * | | 965 | * |
979 | * Side Effects: | | 966 | * Side Effects: |
980 | * If the variable doesn't yet exist, a new record is created for it. | | 967 | * If the variable doesn't yet exist, a new record is created for it. |
981 | * Else the old value is freed and the new one stuck in its place | | 968 | * Else the old value is freed and the new one stuck in its place |
982 | * | | 969 | * |
983 | * Notes: | | 970 | * Notes: |
984 | * The variable is searched for only in its context before being | | 971 | * The variable is searched for only in its context before being |
985 | * created in that context. I.e. if the context is VAR_GLOBAL, | | 972 | * created in that context. I.e. if the context is VAR_GLOBAL, |
986 | * only VAR_GLOBAL->context is searched. Likewise if it is VAR_CMD, only | | 973 | * only VAR_GLOBAL->context is searched. Likewise if it is VAR_CMD, only |
987 | * VAR_CMD->context is searched. This is done to avoid the literally | | 974 | * VAR_CMD->context is searched. This is done to avoid the literally |
988 | * thousands of unnecessary strcmp's that used to be done to | | 975 | * thousands of unnecessary strcmp's that used to be done to |
989 | * set, say, $(@) or $(<). | | 976 | * set, say, $(@) or $(<). |
990 | * If the context is VAR_GLOBAL though, we check if the variable | | 977 | * If the context is VAR_GLOBAL though, we check if the variable |
991 | * was set in VAR_CMD from the command line and skip it if so. | | 978 | * was set in VAR_CMD from the command line and skip it if so. |
992 | *----------------------------------------------------------------------- | | 979 | *----------------------------------------------------------------------- |
993 | */ | | 980 | */ |
994 | void | | 981 | void |
995 | Var_Set(const char *name, const char *val, GNode *ctxt) | | 982 | Var_Set(const char *name, const char *val, GNode *ctxt) |
996 | { | | 983 | { |
997 | Var_Set_with_flags(name, val, ctxt, 0); | | 984 | Var_Set_with_flags(name, val, ctxt, 0); |
998 | } | | 985 | } |
999 | | | 986 | |
1000 | /*- | | 987 | /*- |
1001 | *----------------------------------------------------------------------- | | 988 | *----------------------------------------------------------------------- |
1002 | * Var_Append -- | | 989 | * Var_Append -- |
1003 | * The variable of the given name has the given value appended to it in | | 990 | * The variable of the given name has the given value appended to it in |
1004 | * the given context. | | 991 | * the given context. |
1005 | * | | 992 | * |
1006 | * Input: | | 993 | * Input: |
1007 | * name name of variable to modify | | 994 | * name name of variable to modify |
1008 | * val String to append to it | | 995 | * val String to append to it |
1009 | * ctxt Context in which this should occur | | 996 | * ctxt Context in which this should occur |
1010 | * | | 997 | * |
1011 | * Results: | | 998 | * Results: |
1012 | * None | | 999 | * None |
1013 | * | | 1000 | * |
1014 | * Side Effects: | | 1001 | * Side Effects: |
1015 | * If the variable doesn't exist, it is created. Else the strings | | 1002 | * If the variable doesn't exist, it is created. Else the strings |
1016 | * are concatenated (with a space in between). | | 1003 | * are concatenated (with a space in between). |
1017 | * | | 1004 | * |
1018 | * Notes: | | 1005 | * Notes: |
1019 | * Only if the variable is being sought in the global context is the | | 1006 | * Only if the variable is being sought in the global context is the |
1020 | * environment searched. | | 1007 | * environment searched. |
1021 | * XXX: Knows its calling circumstances in that if called with ctxt | | 1008 | * XXX: Knows its calling circumstances in that if called with ctxt |
1022 | * an actual target, it will only search that context since only | | 1009 | * an actual target, it will only search that context since only |
1023 | * a local variable could be being appended to. This is actually | | 1010 | * a local variable could be being appended to. This is actually |
1024 | * a big win and must be tolerated. | | 1011 | * a big win and must be tolerated. |
1025 | *----------------------------------------------------------------------- | | 1012 | *----------------------------------------------------------------------- |
1026 | */ | | 1013 | */ |
1027 | void | | 1014 | void |
1028 | Var_Append(const char *name, const char *val, GNode *ctxt) | | 1015 | Var_Append(const char *name, const char *val, GNode *ctxt) |
1029 | { | | 1016 | { |
1030 | Var *v; | | 1017 | Var *v; |
1031 | Hash_Entry *h; | | 1018 | Hash_Entry *h; |
1032 | char *expanded_name = NULL; | | 1019 | char *expanded_name = NULL; |
1033 | | | 1020 | |
1034 | if (strchr(name, '$') != NULL) { | | 1021 | if (strchr(name, '$') != NULL) { |
1035 | expanded_name = Var_Subst(NULL, name, ctxt, VARF_WANTRES); | | 1022 | expanded_name = Var_Subst(NULL, name, ctxt, VARF_WANTRES); |
1036 | if (expanded_name[0] == 0) { | | 1023 | if (expanded_name[0] == 0) { |
1037 | if (DEBUG(VAR)) { | | 1024 | if (DEBUG(VAR)) { |
1038 | fprintf(debug_file, "Var_Append(\"%s\", \"%s\", ...) " | | 1025 | fprintf(debug_file, "Var_Append(\"%s\", \"%s\", ...) " |
1039 | "name expands to empty string - ignored\n", | | 1026 | "name expands to empty string - ignored\n", |
1040 | name, val); | | 1027 | name, val); |
1041 | } | | 1028 | } |
1042 | free(expanded_name); | | 1029 | free(expanded_name); |
1043 | return; | | 1030 | return; |
1044 | } | | 1031 | } |
1045 | name = expanded_name; | | 1032 | name = expanded_name; |
1046 | } | | 1033 | } |
1047 | | | 1034 | |
1048 | v = VarFind(name, ctxt, ctxt == VAR_GLOBAL ? (FIND_CMD|FIND_ENV) : 0); | | 1035 | v = VarFind(name, ctxt, ctxt == VAR_GLOBAL ? (FIND_CMD|FIND_ENV) : 0); |
1049 | | | 1036 | |
1050 | if (v == NULL) { | | 1037 | if (v == NULL) { |
1051 | Var_Set(name, val, ctxt); | | 1038 | Var_Set(name, val, ctxt); |
1052 | } else if (ctxt == VAR_CMD || !(v->flags & VAR_FROM_CMD)) { | | 1039 | } else if (ctxt == VAR_CMD || !(v->flags & VAR_FROM_CMD)) { |
1053 | Buf_AddByte(&v->val, ' '); | | 1040 | Buf_AddByte(&v->val, ' '); |
1054 | Buf_AddBytes(&v->val, strlen(val), val); | | 1041 | Buf_AddBytes(&v->val, strlen(val), val); |
1055 | | | 1042 | |
1056 | if (DEBUG(VAR)) { | | 1043 | if (DEBUG(VAR)) { |
1057 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, | | 1044 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, |
1058 | Buf_GetAll(&v->val, NULL)); | | 1045 | Buf_GetAll(&v->val, NULL)); |
1059 | } | | 1046 | } |
1060 | | | 1047 | |
1061 | if (v->flags & VAR_FROM_ENV) { | | 1048 | if (v->flags & VAR_FROM_ENV) { |
1062 | /* | | 1049 | /* |
1063 | * If the original variable came from the environment, we | | 1050 | * If the original variable came from the environment, we |
1064 | * have to install it in the global context (we could place | | 1051 | * have to install it in the global context (we could place |
1065 | * it in the environment, but then we should provide a way to | | 1052 | * it in the environment, but then we should provide a way to |
1066 | * export other variables...) | | 1053 | * export other variables...) |
1067 | */ | | 1054 | */ |
1068 | v->flags &= ~VAR_FROM_ENV; | | 1055 | v->flags &= ~VAR_FROM_ENV; |
1069 | h = Hash_CreateEntry(&ctxt->context, name, NULL); | | 1056 | h = Hash_CreateEntry(&ctxt->context, name, NULL); |
1070 | Hash_SetValue(h, v); | | 1057 | Hash_SetValue(h, v); |
1071 | } | | 1058 | } |
1072 | } | | 1059 | } |
1073 | free(expanded_name); | | 1060 | free(expanded_name); |
1074 | } | | 1061 | } |
1075 | | | 1062 | |
1076 | /*- | | 1063 | /*- |
1077 | *----------------------------------------------------------------------- | | 1064 | *----------------------------------------------------------------------- |
1078 | * Var_Exists -- | | 1065 | * Var_Exists -- |
1079 | * See if the given variable exists. | | 1066 | * See if the given variable exists. |
1080 | * | | 1067 | * |
1081 | * Input: | | 1068 | * Input: |
1082 | * name Variable to find | | 1069 | * name Variable to find |
1083 | * ctxt Context in which to start search | | 1070 | * ctxt Context in which to start search |
1084 | * | | 1071 | * |
1085 | * Results: | | 1072 | * Results: |
1086 | * TRUE if it does, FALSE if it doesn't | | 1073 | * TRUE if it does, FALSE if it doesn't |
1087 | * | | 1074 | * |
1088 | * Side Effects: | | 1075 | * Side Effects: |
1089 | * None. | | 1076 | * None. |
1090 | * | | 1077 | * |
1091 | *----------------------------------------------------------------------- | | 1078 | *----------------------------------------------------------------------- |
1092 | */ | | 1079 | */ |
1093 | Boolean | | 1080 | Boolean |
1094 | Var_Exists(const char *name, GNode *ctxt) | | 1081 | Var_Exists(const char *name, GNode *ctxt) |
1095 | { | | 1082 | { |
1096 | Var *v; | | 1083 | Var *v; |
1097 | char *cp; | | 1084 | char *cp; |
1098 | | | 1085 | |
1099 | if ((cp = strchr(name, '$')) != NULL) { | | 1086 | if ((cp = strchr(name, '$')) != NULL) { |
1100 | cp = Var_Subst(NULL, name, ctxt, VARF_WANTRES); | | 1087 | cp = Var_Subst(NULL, name, ctxt, VARF_WANTRES); |
1101 | } | | 1088 | } |
1102 | v = VarFind(cp ? cp : name, ctxt, FIND_CMD|FIND_GLOBAL|FIND_ENV); | | 1089 | v = VarFind(cp ? cp : name, ctxt, FIND_CMD|FIND_GLOBAL|FIND_ENV); |
1103 | free(cp); | | 1090 | free(cp); |
1104 | if (v == NULL) { | | 1091 | if (v == NULL) { |
1105 | return FALSE; | | 1092 | return FALSE; |
1106 | } | | 1093 | } |
1107 | | | 1094 | |
1108 | (void)VarFreeEnv(v, TRUE); | | 1095 | (void)VarFreeEnv(v, TRUE); |
1109 | return TRUE; | | 1096 | return TRUE; |
1110 | } | | 1097 | } |
1111 | | | 1098 | |
1112 | /*- | | 1099 | /*- |
1113 | *----------------------------------------------------------------------- | | 1100 | *----------------------------------------------------------------------- |
1114 | * Var_Value -- | | 1101 | * Var_Value -- |
1115 | * Return the value of the named variable in the given context | | 1102 | * Return the value of the named variable in the given context |
1116 | * | | 1103 | * |
1117 | * Input: | | 1104 | * Input: |
1118 | * name name to find | | 1105 | * name name to find |
1119 | * ctxt context in which to search for it | | 1106 | * ctxt context in which to search for it |
1120 | * | | 1107 | * |
1121 | * Results: | | 1108 | * Results: |
1122 | * The value if the variable exists, NULL if it doesn't | | 1109 | * The value if the variable exists, NULL if it doesn't |
1123 | * | | 1110 | * |
1124 | * Side Effects: | | 1111 | * Side Effects: |
1125 | * None | | 1112 | * None |
1126 | *----------------------------------------------------------------------- | | 1113 | *----------------------------------------------------------------------- |
1127 | */ | | 1114 | */ |
1128 | char * | | 1115 | char * |
1129 | Var_Value(const char *name, GNode *ctxt, char **frp) | | 1116 | Var_Value(const char *name, GNode *ctxt, char **frp) |
1130 | { | | 1117 | { |
1131 | Var *v; | | 1118 | Var *v; |
1132 | | | 1119 | |
1133 | v = VarFind(name, ctxt, FIND_ENV | FIND_GLOBAL | FIND_CMD); | | 1120 | v = VarFind(name, ctxt, FIND_ENV | FIND_GLOBAL | FIND_CMD); |
1134 | *frp = NULL; | | 1121 | *frp = NULL; |
1135 | if (v == NULL) | | 1122 | if (v == NULL) |
1136 | return NULL; | | 1123 | return NULL; |
1137 | | | 1124 | |
1138 | char *p = (Buf_GetAll(&v->val, NULL)); | | 1125 | char *p = (Buf_GetAll(&v->val, NULL)); |
1139 | if (VarFreeEnv(v, FALSE)) | | 1126 | if (VarFreeEnv(v, FALSE)) |
1140 | *frp = p; | | 1127 | *frp = p; |
1141 | return p; | | 1128 | return p; |
1142 | } | | 1129 | } |
1143 | | | 1130 | |
1144 | | | 1131 | |
1145 | /* This callback for VarModify gets a single word from an expression and | | 1132 | /* This callback for VarModify gets a single word from an expression and |
1146 | * typically adds a modification of this word to the buffer. It may also do | | 1133 | * typically adds a modification of this word to the buffer. It may also do |
1147 | * nothing or add several words. | | 1134 | * nothing or add several words. |
1148 | * | | 1135 | * |
1149 | * If addSpaces is TRUE, it must add a space before adding anything else to | | 1136 | * If addSpaces is TRUE, it must add a space before adding anything else to |
1150 | * the buffer. | | 1137 | * the buffer. |
1151 | * | | 1138 | * |
1152 | * It returns the addSpace value for the next call of this callback. Typical | | 1139 | * It returns the addSpace value for the next call of this callback. Typical |
1153 | * return values are the current addSpaces or TRUE. */ | | 1140 | * return values are the current addSpaces or TRUE. */ |
1154 | typedef Boolean (*VarModifyCallback)(GNode *ctxt, Var_Parse_State *vpstate, | | 1141 | typedef Boolean (*VarModifyCallback)(GNode *ctxt, Var_Parse_State *vpstate, |
1155 | char *word, Boolean addSpace, Buffer *buf, void *data); | | 1142 | char *word, Boolean addSpace, Buffer *buf, void *data); |
1156 | | | 1143 | |
1157 | | | 1144 | |
1158 | /* Callback function for VarModify to implement the :H modifier. | | 1145 | /* Callback function for VarModify to implement the :H modifier. |
1159 | * Add the dirname of the given word to the buffer. */ | | 1146 | * Add the dirname of the given word to the buffer. */ |
1160 | static Boolean | | 1147 | static Boolean |
1161 | VarHead(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, | | 1148 | VarHead(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, |
1162 | char *word, Boolean addSpace, Buffer *buf, | | 1149 | char *word, Boolean addSpace, Buffer *buf, |
1163 | void *dummy MAKE_ATTR_UNUSED) | | 1150 | void *dummy MAKE_ATTR_UNUSED) |
1164 | { | | 1151 | { |
1165 | const char *slash = strrchr(word, '/'); | | 1152 | const char *slash = strrchr(word, '/'); |
1166 | | | 1153 | |
1167 | if (addSpace && vpstate->varSpace) | | 1154 | if (addSpace && vpstate->varSpace) |
1168 | Buf_AddByte(buf, vpstate->varSpace); | | 1155 | Buf_AddByte(buf, vpstate->varSpace); |
1169 | if (slash != NULL) | | 1156 | if (slash != NULL) |
1170 | Buf_AddBytes(buf, slash - word, word); | | 1157 | Buf_AddBytes(buf, slash - word, word); |
1171 | else | | 1158 | else |
1172 | Buf_AddByte(buf, '.'); | | 1159 | Buf_AddByte(buf, '.'); |
1173 | | | 1160 | |
1174 | return TRUE; | | 1161 | return TRUE; |
1175 | } | | 1162 | } |
1176 | | | 1163 | |
1177 | /* Callback function for VarModify to implement the :T modifier. | | 1164 | /* Callback function for VarModify to implement the :T modifier. |
1178 | * Add the basename of the given word to the buffer. */ | | 1165 | * Add the basename of the given word to the buffer. */ |
1179 | static Boolean | | 1166 | static Boolean |
1180 | VarTail(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, | | 1167 | VarTail(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, |
1181 | char *word, Boolean addSpace, Buffer *buf, | | 1168 | char *word, Boolean addSpace, Buffer *buf, |
1182 | void *dummy MAKE_ATTR_UNUSED) | | 1169 | void *dummy MAKE_ATTR_UNUSED) |
1183 | { | | 1170 | { |
1184 | const char *slash = strrchr(word, '/'); | | 1171 | const char *slash = strrchr(word, '/'); |
1185 | const char *base = slash != NULL ? slash + 1 : word; | | 1172 | const char *base = slash != NULL ? slash + 1 : word; |
1186 | | | 1173 | |
1187 | if (addSpace && vpstate->varSpace) | | 1174 | if (addSpace && vpstate->varSpace) |
1188 | Buf_AddByte(buf, vpstate->varSpace); | | 1175 | Buf_AddByte(buf, vpstate->varSpace); |
1189 | Buf_AddBytes(buf, strlen(base), base); | | 1176 | Buf_AddBytes(buf, strlen(base), base); |
1190 | return TRUE; | | 1177 | return TRUE; |
1191 | } | | 1178 | } |
1192 | | | 1179 | |
1193 | /* Callback function for VarModify to implement the :E modifier. | | 1180 | /* Callback function for VarModify to implement the :E modifier. |
1194 | * Add the filename suffix of the given word to the buffer, if it exists. */ | | 1181 | * Add the filename suffix of the given word to the buffer, if it exists. */ |
1195 | static Boolean | | 1182 | static Boolean |
1196 | VarSuffix(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, | | 1183 | VarSuffix(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, |
1197 | char *word, Boolean addSpace, Buffer *buf, | | 1184 | char *word, Boolean addSpace, Buffer *buf, |
1198 | void *dummy MAKE_ATTR_UNUSED) | | 1185 | void *dummy MAKE_ATTR_UNUSED) |
1199 | { | | 1186 | { |
1200 | const char *dot = strrchr(word, '.'); | | 1187 | const char *dot = strrchr(word, '.'); |
1201 | if (dot == NULL) | | 1188 | if (dot == NULL) |
1202 | return addSpace; | | 1189 | return addSpace; |
1203 | | | 1190 | |
1204 | if (addSpace && vpstate->varSpace) | | 1191 | if (addSpace && vpstate->varSpace) |
1205 | Buf_AddByte(buf, vpstate->varSpace); | | 1192 | Buf_AddByte(buf, vpstate->varSpace); |
1206 | Buf_AddBytes(buf, strlen(dot + 1), dot + 1); | | 1193 | Buf_AddBytes(buf, strlen(dot + 1), dot + 1); |
1207 | return TRUE; | | 1194 | return TRUE; |
1208 | } | | 1195 | } |
1209 | | | 1196 | |
1210 | /* Callback function for VarModify to implement the :R modifier. | | 1197 | /* Callback function for VarModify to implement the :R modifier. |
1211 | * Add the filename basename of the given word to the buffer. */ | | 1198 | * Add the filename basename of the given word to the buffer. */ |
1212 | static Boolean | | 1199 | static Boolean |
1213 | VarRoot(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, | | 1200 | VarRoot(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, |
1214 | char *word, Boolean addSpace, Buffer *buf, | | 1201 | char *word, Boolean addSpace, Buffer *buf, |
1215 | void *dummy MAKE_ATTR_UNUSED) | | 1202 | void *dummy MAKE_ATTR_UNUSED) |
1216 | { | | 1203 | { |
1217 | char *dot = strrchr(word, '.'); | | 1204 | char *dot = strrchr(word, '.'); |
1218 | size_t len = dot != NULL ? (size_t)(dot - word) : strlen(word); | | 1205 | size_t len = dot != NULL ? (size_t)(dot - word) : strlen(word); |
1219 | | | 1206 | |
1220 | if (addSpace && vpstate->varSpace) | | 1207 | if (addSpace && vpstate->varSpace) |
1221 | Buf_AddByte(buf, vpstate->varSpace); | | 1208 | Buf_AddByte(buf, vpstate->varSpace); |
1222 | Buf_AddBytes(buf, len, word); | | 1209 | Buf_AddBytes(buf, len, word); |
1223 | return TRUE; | | 1210 | return TRUE; |
1224 | } | | 1211 | } |
1225 | | | 1212 | |
1226 | /* Callback function for VarModify to implement the :M modifier. | | 1213 | /* Callback function for VarModify to implement the :M modifier. |
1227 | * Place the word in the buffer if it matches the given pattern. */ | | 1214 | * Place the word in the buffer if it matches the given pattern. */ |
1228 | static Boolean | | 1215 | static Boolean |
1229 | VarMatch(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, | | 1216 | VarMatch(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, |
1230 | char *word, Boolean addSpace, Buffer *buf, | | 1217 | char *word, Boolean addSpace, Buffer *buf, |
1231 | void *data) | | 1218 | void *data) |
1232 | { | | 1219 | { |
1233 | const char *pattern = data; | | 1220 | const char *pattern = data; |
1234 | if (DEBUG(VAR)) | | 1221 | if (DEBUG(VAR)) |
1235 | fprintf(debug_file, "VarMatch [%s] [%s]\n", word, pattern); | | 1222 | fprintf(debug_file, "VarMatch [%s] [%s]\n", word, pattern); |
1236 | if (!Str_Match(word, pattern)) | | 1223 | if (!Str_Match(word, pattern)) |
1237 | return addSpace; | | 1224 | return addSpace; |
1238 | if (addSpace && vpstate->varSpace) | | 1225 | if (addSpace && vpstate->varSpace) |
1239 | Buf_AddByte(buf, vpstate->varSpace); | | 1226 | Buf_AddByte(buf, vpstate->varSpace); |
1240 | Buf_AddBytes(buf, strlen(word), word); | | 1227 | Buf_AddBytes(buf, strlen(word), word); |
1241 | return TRUE; | | 1228 | return TRUE; |
1242 | } | | 1229 | } |
1243 | | | 1230 | |
1244 | #ifdef SYSVVARSUB | | 1231 | #ifdef SYSVVARSUB |
1245 | /* Callback function for VarModify to implement the :%.from=%.to modifier. */ | | 1232 | /* Callback function for VarModify to implement the :%.from=%.to modifier. */ |
1246 | static Boolean | | 1233 | static Boolean |
1247 | VarSYSVMatch(GNode *ctx, Var_Parse_State *vpstate, | | 1234 | VarSYSVMatch(GNode *ctx, Var_Parse_State *vpstate, |
1248 | char *word, Boolean addSpace, Buffer *buf, | | 1235 | char *word, Boolean addSpace, Buffer *buf, |
1249 | void *data) | | 1236 | void *data) |
1250 | { | | 1237 | { |
1251 | size_t len; | | 1238 | size_t len; |
1252 | char *ptr; | | 1239 | char *ptr; |
1253 | Boolean hasPercent; | | 1240 | Boolean hasPercent; |
1254 | VarPattern *pat = data; | | 1241 | VarPattern *pat = data; |
1255 | | | 1242 | |
1256 | if (addSpace && vpstate->varSpace) | | 1243 | if (addSpace && vpstate->varSpace) |
1257 | Buf_AddByte(buf, vpstate->varSpace); | | 1244 | Buf_AddByte(buf, vpstate->varSpace); |
1258 | | | 1245 | |
1259 | if ((ptr = Str_SYSVMatch(word, pat->lhs, &len, &hasPercent)) != NULL) { | | 1246 | if ((ptr = Str_SYSVMatch(word, pat->lhs, &len, &hasPercent)) != NULL) { |
1260 | char *varexp = Var_Subst(NULL, pat->rhs, ctx, VARF_WANTRES); | | 1247 | char *varexp = Var_Subst(NULL, pat->rhs, ctx, VARF_WANTRES); |
1261 | Str_SYSVSubst(buf, varexp, ptr, len, hasPercent); | | 1248 | Str_SYSVSubst(buf, varexp, ptr, len, hasPercent); |
1262 | free(varexp); | | 1249 | free(varexp); |
1263 | } else { | | 1250 | } else { |
1264 | Buf_AddBytes(buf, strlen(word), word); | | 1251 | Buf_AddBytes(buf, strlen(word), word); |
1265 | } | | 1252 | } |
1266 | | | 1253 | |
1267 | return TRUE; | | 1254 | return TRUE; |
1268 | } | | 1255 | } |
1269 | #endif | | 1256 | #endif |
1270 | | | 1257 | |
1271 | /* Callback function for VarModify to implement the :N modifier. | | 1258 | /* Callback function for VarModify to implement the :N modifier. |
1272 | * Place the word in the buffer if it doesn't match the given pattern. */ | | 1259 | * Place the word in the buffer if it doesn't match the given pattern. */ |
1273 | static Boolean | | 1260 | static Boolean |
1274 | VarNoMatch(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, | | 1261 | VarNoMatch(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, |
1275 | char *word, Boolean addSpace, Buffer *buf, | | 1262 | char *word, Boolean addSpace, Buffer *buf, |
1276 | void *data) | | 1263 | void *data) |
1277 | { | | 1264 | { |
1278 | const char *pattern = data; | | 1265 | const char *pattern = data; |
1279 | if (Str_Match(word, pattern)) | | 1266 | if (Str_Match(word, pattern)) |
1280 | return addSpace; | | 1267 | return addSpace; |
1281 | if (addSpace && vpstate->varSpace) | | 1268 | if (addSpace && vpstate->varSpace) |
1282 | Buf_AddByte(buf, vpstate->varSpace); | | 1269 | Buf_AddByte(buf, vpstate->varSpace); |
1283 | Buf_AddBytes(buf, strlen(word), word); | | 1270 | Buf_AddBytes(buf, strlen(word), word); |
1284 | return TRUE; | | 1271 | return TRUE; |
1285 | } | | 1272 | } |
1286 | | | 1273 | |
1287 | /* Callback function for VarModify to implement the :S,from,to, modifier. | | 1274 | /* Callback function for VarModify to implement the :S,from,to, modifier. |
1288 | * Perform a string substitution on the given word. */ | | 1275 | * Perform a string substitution on the given word. */ |
1289 | static Boolean | | 1276 | static Boolean |
1290 | VarSubstitute(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, | | 1277 | VarSubstitute(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, |
1291 | char *word, Boolean addSpace, Buffer *buf, | | 1278 | char *word, Boolean addSpace, Buffer *buf, |
1292 | void *data) | | 1279 | void *data) |
1293 | { | | 1280 | { |
1294 | int wordLen = strlen(word); | | 1281 | int wordLen = strlen(word); |
1295 | char *cp; /* General pointer */ | | 1282 | char *cp; /* General pointer */ |
1296 | VarPattern *pattern = data; | | 1283 | VarPattern *pattern = data; |
1297 | | | 1284 | |
1298 | if ((pattern->flags & (VAR_SUB_ONE|VAR_SUB_MATCHED)) != | | 1285 | if ((pattern->flags & (VAR_SUB_ONE|VAR_SUB_MATCHED)) != |
1299 | (VAR_SUB_ONE|VAR_SUB_MATCHED)) { | | 1286 | (VAR_SUB_ONE|VAR_SUB_MATCHED)) { |
1300 | /* | | 1287 | /* |
1301 | * Still substituting -- break it down into simple anchored cases | | 1288 | * Still substituting -- break it down into simple anchored cases |
1302 | * and if none of them fits, perform the general substitution case. | | 1289 | * and if none of them fits, perform the general substitution case. |
1303 | */ | | 1290 | */ |
1304 | if ((pattern->flags & VAR_MATCH_START) && | | 1291 | if ((pattern->flags & VAR_MATCH_START) && |
1305 | (strncmp(word, pattern->lhs, pattern->leftLen) == 0)) { | | 1292 | (strncmp(word, pattern->lhs, pattern->leftLen) == 0)) { |
1306 | /* | | 1293 | /* |
1307 | * Anchored at start and beginning of word matches pattern | | 1294 | * Anchored at start and beginning of word matches pattern |
1308 | */ | | 1295 | */ |
1309 | if ((pattern->flags & VAR_MATCH_END) && | | 1296 | if ((pattern->flags & VAR_MATCH_END) && |
1310 | (wordLen == pattern->leftLen)) { | | 1297 | (wordLen == pattern->leftLen)) { |
1311 | /* | | 1298 | /* |
1312 | * Also anchored at end and matches to the end (word | | 1299 | * Also anchored at end and matches to the end (word |
1313 | * is same length as pattern) add space and rhs only | | 1300 | * is same length as pattern) add space and rhs only |
1314 | * if rhs is non-null. | | 1301 | * if rhs is non-null. |
1315 | */ | | 1302 | */ |
1316 | if (pattern->rightLen != 0) { | | 1303 | if (pattern->rightLen != 0) { |
1317 | if (addSpace && vpstate->varSpace) { | | 1304 | if (addSpace && vpstate->varSpace) { |
1318 | Buf_AddByte(buf, vpstate->varSpace); | | 1305 | Buf_AddByte(buf, vpstate->varSpace); |
1319 | } | | 1306 | } |
1320 | addSpace = TRUE; | | 1307 | addSpace = TRUE; |
1321 | Buf_AddBytes(buf, pattern->rightLen, pattern->rhs); | | 1308 | Buf_AddBytes(buf, pattern->rightLen, pattern->rhs); |
1322 | } | | 1309 | } |
1323 | pattern->flags |= VAR_SUB_MATCHED; | | 1310 | pattern->flags |= VAR_SUB_MATCHED; |
1324 | } else if (pattern->flags & VAR_MATCH_END) { | | 1311 | } else if (pattern->flags & VAR_MATCH_END) { |
1325 | /* | | 1312 | /* |
1326 | * Doesn't match to end -- copy word wholesale | | 1313 | * Doesn't match to end -- copy word wholesale |
1327 | */ | | 1314 | */ |
1328 | goto nosub; | | 1315 | goto nosub; |
1329 | } else { | | 1316 | } else { |
1330 | /* | | 1317 | /* |
1331 | * Matches at start but need to copy in trailing characters | | 1318 | * Matches at start but need to copy in trailing characters |
1332 | */ | | 1319 | */ |
1333 | if ((pattern->rightLen + wordLen - pattern->leftLen) != 0){ | | 1320 | if ((pattern->rightLen + wordLen - pattern->leftLen) != 0) { |
1334 | if (addSpace && vpstate->varSpace) { | | 1321 | if (addSpace && vpstate->varSpace) { |
1335 | Buf_AddByte(buf, vpstate->varSpace); | | 1322 | Buf_AddByte(buf, vpstate->varSpace); |
1336 | } | | 1323 | } |
1337 | addSpace = TRUE; | | 1324 | addSpace = TRUE; |
1338 | } | | 1325 | } |
1339 | Buf_AddBytes(buf, pattern->rightLen, pattern->rhs); | | 1326 | Buf_AddBytes(buf, pattern->rightLen, pattern->rhs); |
1340 | Buf_AddBytes(buf, wordLen - pattern->leftLen, | | 1327 | Buf_AddBytes(buf, wordLen - pattern->leftLen, |
1341 | (word + pattern->leftLen)); | | 1328 | (word + pattern->leftLen)); |
1342 | pattern->flags |= VAR_SUB_MATCHED; | | 1329 | pattern->flags |= VAR_SUB_MATCHED; |
1343 | } | | 1330 | } |
1344 | } else if (pattern->flags & VAR_MATCH_START) { | | 1331 | } else if (pattern->flags & VAR_MATCH_START) { |
1345 | /* | | 1332 | /* |
1346 | * Had to match at start of word and didn't -- copy whole word. | | 1333 | * Had to match at start of word and didn't -- copy whole word. |
1347 | */ | | 1334 | */ |
1348 | goto nosub; | | 1335 | goto nosub; |
1349 | } else if (pattern->flags & VAR_MATCH_END) { | | 1336 | } else if (pattern->flags & VAR_MATCH_END) { |
1350 | /* | | 1337 | /* |
1351 | * Anchored at end, Find only place match could occur (leftLen | | 1338 | * Anchored at end, Find only place match could occur (leftLen |
1352 | * characters from the end of the word) and see if it does. Note | | 1339 | * characters from the end of the word) and see if it does. Note |
1353 | * that because the $ will be left at the end of the lhs, we have | | 1340 | * that because the $ will be left at the end of the lhs, we have |
1354 | * to use strncmp. | | 1341 | * to use strncmp. |
1355 | */ | | 1342 | */ |
1356 | cp = word + (wordLen - pattern->leftLen); | | 1343 | cp = word + (wordLen - pattern->leftLen); |
1357 | if ((cp >= word) && | | 1344 | if ((cp >= word) && |
1358 | (strncmp(cp, pattern->lhs, pattern->leftLen) == 0)) { | | 1345 | (strncmp(cp, pattern->lhs, pattern->leftLen) == 0)) { |
1359 | /* | | 1346 | /* |
1360 | * Match found. If we will place characters in the buffer, | | 1347 | * Match found. If we will place characters in the buffer, |
1361 | * add a space before hand as indicated by addSpace, then | | 1348 | * add a space before hand as indicated by addSpace, then |
1362 | * stuff in the initial, unmatched part of the word followed | | 1349 | * stuff in the initial, unmatched part of the word followed |
1363 | * by the right-hand-side. | | 1350 | * by the right-hand-side. |
1364 | */ | | 1351 | */ |
1365 | if (((cp - word) + pattern->rightLen) != 0) { | | 1352 | if (((cp - word) + pattern->rightLen) != 0) { |
1366 | if (addSpace && vpstate->varSpace) { | | 1353 | if (addSpace && vpstate->varSpace) { |
1367 | Buf_AddByte(buf, vpstate->varSpace); | | 1354 | Buf_AddByte(buf, vpstate->varSpace); |
1368 | } | | 1355 | } |
1369 | addSpace = TRUE; | | 1356 | addSpace = TRUE; |
1370 | } | | 1357 | } |
1371 | Buf_AddBytes(buf, cp - word, word); | | 1358 | Buf_AddBytes(buf, cp - word, word); |
1372 | Buf_AddBytes(buf, pattern->rightLen, pattern->rhs); | | 1359 | Buf_AddBytes(buf, pattern->rightLen, pattern->rhs); |
1373 | pattern->flags |= VAR_SUB_MATCHED; | | 1360 | pattern->flags |= VAR_SUB_MATCHED; |
1374 | } else { | | 1361 | } else { |
1375 | /* | | 1362 | /* |
1376 | * Had to match at end and didn't. Copy entire word. | | 1363 | * Had to match at end and didn't. Copy entire word. |
1377 | */ | | 1364 | */ |
1378 | goto nosub; | | 1365 | goto nosub; |
1379 | } | | 1366 | } |
1380 | } else { | | 1367 | } else { |
1381 | /* | | 1368 | /* |
1382 | * Pattern is unanchored: search for the pattern in the word using | | 1369 | * Pattern is unanchored: search for the pattern in the word using |
1383 | * String_FindSubstring, copying unmatched portions and the | | 1370 | * String_FindSubstring, copying unmatched portions and the |
1384 | * right-hand-side for each match found, handling non-global | | 1371 | * right-hand-side for each match found, handling non-global |
1385 | * substitutions correctly, etc. When the loop is done, any | | 1372 | * substitutions correctly, etc. When the loop is done, any |
1386 | * remaining part of the word (word and wordLen are adjusted | | 1373 | * remaining part of the word (word and wordLen are adjusted |
1387 | * accordingly through the loop) is copied straight into the | | 1374 | * accordingly through the loop) is copied straight into the |
1388 | * buffer. | | 1375 | * buffer. |
1389 | * addSpace is set FALSE as soon as a space is added to the | | 1376 | * addSpace is set FALSE as soon as a space is added to the |
1390 | * buffer. | | 1377 | * buffer. |
1391 | */ | | 1378 | */ |
1392 | Boolean done; | | 1379 | Boolean done; |
1393 | int origSize; | | 1380 | int origSize; |
1394 | | | 1381 | |
1395 | done = FALSE; | | 1382 | done = FALSE; |
1396 | origSize = Buf_Size(buf); | | 1383 | origSize = Buf_Size(buf); |
1397 | while (!done) { | | 1384 | while (!done) { |
1398 | cp = Str_FindSubstring(word, pattern->lhs); | | 1385 | cp = Str_FindSubstring(word, pattern->lhs); |
1399 | if (cp != NULL) { | | 1386 | if (cp != NULL) { |
1400 | if (addSpace && (((cp - word) + pattern->rightLen) != 0)){ | | 1387 | if (addSpace && (((cp - word) + pattern->rightLen) != 0)) { |
1401 | Buf_AddByte(buf, vpstate->varSpace); | | 1388 | Buf_AddByte(buf, vpstate->varSpace); |
1402 | addSpace = FALSE; | | 1389 | addSpace = FALSE; |
1403 | } | | 1390 | } |
1404 | Buf_AddBytes(buf, cp-word, word); | | 1391 | Buf_AddBytes(buf, cp-word, word); |
1405 | Buf_AddBytes(buf, pattern->rightLen, pattern->rhs); | | 1392 | Buf_AddBytes(buf, pattern->rightLen, pattern->rhs); |
1406 | wordLen -= (cp - word) + pattern->leftLen; | | 1393 | wordLen -= (cp - word) + pattern->leftLen; |
1407 | word = cp + pattern->leftLen; | | 1394 | word = cp + pattern->leftLen; |
1408 | if (wordLen == 0) { | | 1395 | if (wordLen == 0) { |
1409 | done = TRUE; | | 1396 | done = TRUE; |
1410 | } | | 1397 | } |
1411 | if ((pattern->flags & VAR_SUB_GLOBAL) == 0) { | | 1398 | if ((pattern->flags & VAR_SUB_GLOBAL) == 0) { |
1412 | done = TRUE; | | 1399 | done = TRUE; |
1413 | } | | 1400 | } |
1414 | pattern->flags |= VAR_SUB_MATCHED; | | 1401 | pattern->flags |= VAR_SUB_MATCHED; |
1415 | } else { | | 1402 | } else { |
1416 | done = TRUE; | | 1403 | done = TRUE; |
1417 | } | | 1404 | } |
1418 | } | | 1405 | } |
1419 | if (wordLen != 0) { | | 1406 | if (wordLen != 0) { |
1420 | if (addSpace && vpstate->varSpace) { | | 1407 | if (addSpace && vpstate->varSpace) { |
1421 | Buf_AddByte(buf, vpstate->varSpace); | | 1408 | Buf_AddByte(buf, vpstate->varSpace); |
1422 | } | | 1409 | } |
1423 | Buf_AddBytes(buf, wordLen, word); | | 1410 | Buf_AddBytes(buf, wordLen, word); |
1424 | } | | 1411 | } |
1425 | /* | | 1412 | /* |
1426 | * If added characters to the buffer, need to add a space | | 1413 | * If added characters to the buffer, need to add a space |
1427 | * before we add any more. If we didn't add any, just return | | 1414 | * before we add any more. If we didn't add any, just return |
1428 | * the previous value of addSpace. | | 1415 | * the previous value of addSpace. |
1429 | */ | | 1416 | */ |
1430 | return (Buf_Size(buf) != origSize) || addSpace; | | 1417 | return (Buf_Size(buf) != origSize) || addSpace; |
1431 | } | | 1418 | } |
1432 | return addSpace; | | 1419 | return addSpace; |
1433 | } | | 1420 | } |
1434 | nosub: | | 1421 | nosub: |
1435 | if (addSpace && vpstate->varSpace) { | | 1422 | if (addSpace && vpstate->varSpace) { |
1436 | Buf_AddByte(buf, vpstate->varSpace); | | 1423 | Buf_AddByte(buf, vpstate->varSpace); |
1437 | } | | 1424 | } |
1438 | Buf_AddBytes(buf, wordLen, word); | | 1425 | Buf_AddBytes(buf, wordLen, word); |
1439 | return TRUE; | | 1426 | return TRUE; |
1440 | } | | 1427 | } |
1441 | | | 1428 | |
1442 | #ifndef NO_REGEX | | 1429 | #ifndef NO_REGEX |
1443 | /*- | | 1430 | /*- |
1444 | *----------------------------------------------------------------------- | | 1431 | *----------------------------------------------------------------------- |
1445 | * VarREError -- | | 1432 | * VarREError -- |
1446 | * Print the error caused by a regcomp or regexec call. | | 1433 | * Print the error caused by a regcomp or regexec call. |
1447 | * | | 1434 | * |
1448 | * Results: | | 1435 | * Results: |
1449 | * None. | | 1436 | * None. |
1450 | * | | 1437 | * |
1451 | * Side Effects: | | 1438 | * Side Effects: |
1452 | * An error gets printed. | | 1439 | * An error gets printed. |
1453 | * | | 1440 | * |
1454 | *----------------------------------------------------------------------- | | 1441 | *----------------------------------------------------------------------- |
1455 | */ | | 1442 | */ |
1456 | static void | | 1443 | static void |
1457 | VarREError(int reerr, regex_t *pat, const char *str) | | 1444 | VarREError(int reerr, regex_t *pat, const char *str) |
1458 | { | | 1445 | { |
1459 | char *errbuf; | | 1446 | char *errbuf; |
1460 | int errlen; | | 1447 | int errlen; |
1461 | | | 1448 | |
1462 | errlen = regerror(reerr, pat, 0, 0); | | 1449 | errlen = regerror(reerr, pat, 0, 0); |
1463 | errbuf = bmake_malloc(errlen); | | 1450 | errbuf = bmake_malloc(errlen); |
1464 | regerror(reerr, pat, errbuf, errlen); | | 1451 | regerror(reerr, pat, errbuf, errlen); |
1465 | Error("%s: %s", str, errbuf); | | 1452 | Error("%s: %s", str, errbuf); |
1466 | free(errbuf); | | 1453 | free(errbuf); |
1467 | } | | 1454 | } |
1468 | | | 1455 | |
1469 | /* Callback function for VarModify to implement the :C/from/to/ modifier. | | 1456 | /* Callback function for VarModify to implement the :C/from/to/ modifier. |
1470 | * Perform a regex substitution on the given word. */ | | 1457 | * Perform a regex substitution on the given word. */ |
1471 | static Boolean | | 1458 | static Boolean |
1472 | VarRESubstitute(GNode *ctx MAKE_ATTR_UNUSED, | | 1459 | VarRESubstitute(GNode *ctx MAKE_ATTR_UNUSED, |
1473 | Var_Parse_State *vpstate MAKE_ATTR_UNUSED, | | 1460 | Var_Parse_State *vpstate MAKE_ATTR_UNUSED, |
1474 | char *word, Boolean addSpace, Buffer *buf, | | 1461 | char *word, Boolean addSpace, Buffer *buf, |
1475 | void *data) | | 1462 | void *data) |
1476 | { | | 1463 | { |
1477 | VarREPattern *pat = data; | | 1464 | VarREPattern *pat = data; |
1478 | int xrv; | | 1465 | int xrv; |
1479 | char *wp = word; | | 1466 | char *wp = word; |
1480 | char *rp; | | 1467 | char *rp; |
1481 | int added = 0; | | 1468 | int added = 0; |
1482 | int flags = 0; | | 1469 | int flags = 0; |
1483 | | | 1470 | |
1484 | #define MAYBE_ADD_SPACE() \ | | 1471 | #define MAYBE_ADD_SPACE() \ |
1485 | if (addSpace && !added) \ | | 1472 | if (addSpace && !added) \ |
1486 | Buf_AddByte(buf, ' '); \ | | 1473 | Buf_AddByte(buf, ' '); \ |
1487 | added = 1 | | 1474 | added = 1 |
1488 | | | 1475 | |
1489 | if ((pat->flags & (VAR_SUB_ONE|VAR_SUB_MATCHED)) == | | 1476 | if ((pat->flags & (VAR_SUB_ONE|VAR_SUB_MATCHED)) == |
1490 | (VAR_SUB_ONE|VAR_SUB_MATCHED)) | | 1477 | (VAR_SUB_ONE|VAR_SUB_MATCHED)) |
1491 | xrv = REG_NOMATCH; | | 1478 | xrv = REG_NOMATCH; |
1492 | else { | | 1479 | else { |
1493 | tryagain: | | 1480 | tryagain: |
1494 | xrv = regexec(&pat->re, wp, pat->nsub, pat->matches, flags); | | 1481 | xrv = regexec(&pat->re, wp, pat->nsub, pat->matches, flags); |
1495 | } | | 1482 | } |
1496 | | | 1483 | |
1497 | switch (xrv) { | | 1484 | switch (xrv) { |
1498 | case 0: | | 1485 | case 0: |
1499 | pat->flags |= VAR_SUB_MATCHED; | | 1486 | pat->flags |= VAR_SUB_MATCHED; |
1500 | if (pat->matches[0].rm_so > 0) { | | 1487 | if (pat->matches[0].rm_so > 0) { |
1501 | MAYBE_ADD_SPACE(); | | 1488 | MAYBE_ADD_SPACE(); |
1502 | Buf_AddBytes(buf, pat->matches[0].rm_so, wp); | | 1489 | Buf_AddBytes(buf, pat->matches[0].rm_so, wp); |
1503 | } | | 1490 | } |
1504 | | | 1491 | |
1505 | for (rp = pat->replace; *rp; rp++) { | | 1492 | for (rp = pat->replace; *rp; rp++) { |
1506 | if ((*rp == '\\') && ((rp[1] == '&') || (rp[1] == '\\'))) { | | 1493 | if ((*rp == '\\') && ((rp[1] == '&') || (rp[1] == '\\'))) { |
1507 | MAYBE_ADD_SPACE(); | | 1494 | MAYBE_ADD_SPACE(); |
1508 | Buf_AddByte(buf, rp[1]); | | 1495 | Buf_AddByte(buf, rp[1]); |
1509 | rp++; | | 1496 | rp++; |
1510 | } else if ((*rp == '&') || | | 1497 | } else if ((*rp == '&') || |
1511 | ((*rp == '\\') && isdigit((unsigned char)rp[1]))) { | | 1498 | ((*rp == '\\') && isdigit((unsigned char)rp[1]))) { |
1512 | int n; | | 1499 | int n; |
1513 | const char *subbuf; | | 1500 | const char *subbuf; |
1514 | int sublen; | | 1501 | int sublen; |
1515 | char errstr[3]; | | 1502 | char errstr[3]; |
1516 | | | 1503 | |
1517 | if (*rp == '&') { | | 1504 | if (*rp == '&') { |
1518 | n = 0; | | 1505 | n = 0; |
1519 | errstr[0] = '&'; | | 1506 | errstr[0] = '&'; |
1520 | errstr[1] = '\0'; | | 1507 | errstr[1] = '\0'; |
1521 | } else { | | 1508 | } else { |
1522 | n = rp[1] - '0'; | | 1509 | n = rp[1] - '0'; |
1523 | errstr[0] = '\\'; | | 1510 | errstr[0] = '\\'; |
1524 | errstr[1] = rp[1]; | | 1511 | errstr[1] = rp[1]; |
1525 | errstr[2] = '\0'; | | 1512 | errstr[2] = '\0'; |
1526 | rp++; | | 1513 | rp++; |
1527 | } | | 1514 | } |
1528 | | | 1515 | |
1529 | if (n > pat->nsub) { | | 1516 | if (n > pat->nsub) { |
1530 | Error("No subexpression %s", &errstr[0]); | | 1517 | Error("No subexpression %s", &errstr[0]); |
1531 | subbuf = ""; | | 1518 | subbuf = ""; |
1532 | sublen = 0; | | 1519 | sublen = 0; |
1533 | } else if ((pat->matches[n].rm_so == -1) && | | 1520 | } else if ((pat->matches[n].rm_so == -1) && |
1534 | (pat->matches[n].rm_eo == -1)) { | | 1521 | (pat->matches[n].rm_eo == -1)) { |
1535 | Error("No match for subexpression %s", &errstr[0]); | | 1522 | Error("No match for subexpression %s", &errstr[0]); |
1536 | subbuf = ""; | | 1523 | subbuf = ""; |
1537 | sublen = 0; | | 1524 | sublen = 0; |
1538 | } else { | | 1525 | } else { |
1539 | subbuf = wp + pat->matches[n].rm_so; | | 1526 | subbuf = wp + pat->matches[n].rm_so; |
1540 | sublen = pat->matches[n].rm_eo - pat->matches[n].rm_so; | | 1527 | sublen = pat->matches[n].rm_eo - pat->matches[n].rm_so; |
1541 | } | | 1528 | } |
1542 | | | 1529 | |
1543 | if (sublen > 0) { | | 1530 | if (sublen > 0) { |
1544 | MAYBE_ADD_SPACE(); | | 1531 | MAYBE_ADD_SPACE(); |
1545 | Buf_AddBytes(buf, sublen, subbuf); | | 1532 | Buf_AddBytes(buf, sublen, subbuf); |
1546 | } | | 1533 | } |
1547 | } else { | | 1534 | } else { |
1548 | MAYBE_ADD_SPACE(); | | 1535 | MAYBE_ADD_SPACE(); |
1549 | Buf_AddByte(buf, *rp); | | 1536 | Buf_AddByte(buf, *rp); |
1550 | } | | 1537 | } |
1551 | } | | 1538 | } |
1552 | wp += pat->matches[0].rm_eo; | | 1539 | wp += pat->matches[0].rm_eo; |
1553 | if (pat->flags & VAR_SUB_GLOBAL) { | | 1540 | if (pat->flags & VAR_SUB_GLOBAL) { |
1554 | flags |= REG_NOTBOL; | | 1541 | flags |= REG_NOTBOL; |
1555 | if (pat->matches[0].rm_so == 0 && pat->matches[0].rm_eo == 0) { | | 1542 | if (pat->matches[0].rm_so == 0 && pat->matches[0].rm_eo == 0) { |
1556 | MAYBE_ADD_SPACE(); | | 1543 | MAYBE_ADD_SPACE(); |
1557 | Buf_AddByte(buf, *wp); | | 1544 | Buf_AddByte(buf, *wp); |
1558 | wp++; | | 1545 | wp++; |
1559 | | | 1546 | |
1560 | } | | 1547 | } |
1561 | if (*wp) | | 1548 | if (*wp) |
1562 | goto tryagain; | | 1549 | goto tryagain; |
1563 | } | | 1550 | } |
1564 | if (*wp) { | | 1551 | if (*wp) { |
1565 | MAYBE_ADD_SPACE(); | | 1552 | MAYBE_ADD_SPACE(); |
1566 | Buf_AddBytes(buf, strlen(wp), wp); | | 1553 | Buf_AddBytes(buf, strlen(wp), wp); |
1567 | } | | 1554 | } |
1568 | break; | | 1555 | break; |
1569 | default: | | 1556 | default: |
1570 | VarREError(xrv, &pat->re, "Unexpected regex error"); | | 1557 | VarREError(xrv, &pat->re, "Unexpected regex error"); |
1571 | /* fall through */ | | 1558 | /* fall through */ |
1572 | case REG_NOMATCH: | | 1559 | case REG_NOMATCH: |
1573 | if (*wp) { | | 1560 | if (*wp) { |
1574 | MAYBE_ADD_SPACE(); | | 1561 | MAYBE_ADD_SPACE(); |
1575 | Buf_AddBytes(buf, strlen(wp), wp); | | 1562 | Buf_AddBytes(buf, strlen(wp), wp); |
1576 | } | | 1563 | } |
1577 | break; | | 1564 | break; |
1578 | } | | 1565 | } |
1579 | return addSpace || added; | | 1566 | return addSpace || added; |
1580 | } | | 1567 | } |
1581 | #endif | | 1568 | #endif |
1582 | | | 1569 | |
1583 | | | 1570 | |
1584 | /* Callback function for VarModify to implement the :@var@...@ modifier of | | 1571 | /* Callback function for VarModify to implement the :@var@...@ modifier of |
1585 | * ODE make. We set the temp variable named in pattern.lhs to word and | | 1572 | * ODE make. We set the temp variable named in pattern.lhs to word and |
1586 | * expand pattern.rhs. */ | | 1573 | * expand pattern.rhs. */ |
1587 | static Boolean | | 1574 | static Boolean |
1588 | VarLoopExpand(GNode *ctx MAKE_ATTR_UNUSED, | | 1575 | VarLoopExpand(GNode *ctx MAKE_ATTR_UNUSED, |
1589 | Var_Parse_State *vpstate MAKE_ATTR_UNUSED, | | 1576 | Var_Parse_State *vpstate MAKE_ATTR_UNUSED, |
1590 | char *word, Boolean addSpace, Buffer *buf, | | 1577 | char *word, Boolean addSpace, Buffer *buf, |
1591 | void *data) | | 1578 | void *data) |
1592 | { | | 1579 | { |
1593 | VarLoop_t *loop = data; | | 1580 | VarLoop_t *loop = data; |
1594 | char *s; | | 1581 | char *s; |
1595 | int slen; | | 1582 | int slen; |
1596 | | | 1583 | |
1597 | if (*word) { | | 1584 | if (*word) { |
1598 | Var_Set_with_flags(loop->tvar, word, loop->ctxt, VAR_NO_EXPORT); | | 1585 | Var_Set_with_flags(loop->tvar, word, loop->ctxt, VAR_NO_EXPORT); |
1599 | s = Var_Subst(NULL, loop->str, loop->ctxt, loop->flags); | | 1586 | s = Var_Subst(NULL, loop->str, loop->ctxt, loop->flags); |
1600 | if (s != NULL && *s != '\0') { | | 1587 | if (s != NULL && *s != '\0') { |
1601 | if (addSpace && *s != '\n') | | 1588 | if (addSpace && *s != '\n') |
1602 | Buf_AddByte(buf, ' '); | | 1589 | Buf_AddByte(buf, ' '); |
1603 | Buf_AddBytes(buf, (slen = strlen(s)), s); | | 1590 | Buf_AddBytes(buf, (slen = strlen(s)), s); |
1604 | addSpace = (slen > 0 && s[slen - 1] != '\n'); | | 1591 | addSpace = (slen > 0 && s[slen - 1] != '\n'); |
1605 | } | | 1592 | } |
1606 | free(s); | | 1593 | free(s); |
1607 | } | | 1594 | } |
1608 | return addSpace; | | 1595 | return addSpace; |
1609 | } | | 1596 | } |
1610 | | | 1597 | |
1611 | | | 1598 | |
1612 | /*- | | 1599 | /*- |
1613 | *----------------------------------------------------------------------- | | 1600 | *----------------------------------------------------------------------- |
1614 | * VarSelectWords -- | | 1601 | * VarSelectWords -- |
1615 | * Implements the :[start..end] modifier. | | 1602 | * Implements the :[start..end] modifier. |
1616 | * This is a special case of VarModify since we want to be able | | 1603 | * This is a special case of VarModify since we want to be able |
1617 | * to scan the list backwards if start > end. | | 1604 | * to scan the list backwards if start > end. |
1618 | * | | 1605 | * |
1619 | * Input: | | 1606 | * Input: |
1620 | * str String whose words should be trimmed | | 1607 | * str String whose words should be trimmed |
1621 | * seldata words to select | | 1608 | * seldata words to select |
1622 | * | | 1609 | * |
1623 | * Results: | | 1610 | * Results: |
1624 | * A string of all the words selected. | | 1611 | * A string of all the words selected. |
1625 | * | | 1612 | * |
1626 | * Side Effects: | | 1613 | * Side Effects: |
1627 | * None. | | 1614 | * None. |
1628 | * | | 1615 | * |
1629 | *----------------------------------------------------------------------- | | 1616 | *----------------------------------------------------------------------- |
1630 | */ | | 1617 | */ |
1631 | static char * | | 1618 | static char * |
1632 | VarSelectWords(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, | | 1619 | VarSelectWords(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, |
1633 | const char *str, VarSelectWords_t *seldata) | | 1620 | const char *str, VarSelectWords_t *seldata) |
1634 | { | | 1621 | { |
1635 | Buffer buf; /* Buffer for the new string */ | | 1622 | Buffer buf; /* Buffer for the new string */ |
1636 | Boolean addSpace; /* TRUE if need to add a space to the | | 1623 | Boolean addSpace; /* TRUE if need to add a space to the |
1637 | * buffer before adding the trimmed | | 1624 | * buffer before adding the trimmed |
1638 | * word */ | | 1625 | * word */ |
1639 | char **av; /* word list */ | | 1626 | char **av; /* word list */ |
1640 | char *as; /* word list memory */ | | 1627 | char *as; /* word list memory */ |
1641 | int ac, i; | | 1628 | int ac, i; |
1642 | int start, end, step; | | 1629 | int start, end, step; |
1643 | | | 1630 | |
1644 | Buf_Init(&buf, 0); | | 1631 | Buf_Init(&buf, 0); |
1645 | addSpace = FALSE; | | 1632 | addSpace = FALSE; |
1646 | | | 1633 | |
1647 | if (vpstate->oneBigWord) { | | 1634 | if (vpstate->oneBigWord) { |
1648 | /* fake what brk_string() would do if there were only one word */ | | 1635 | /* fake what brk_string() would do if there were only one word */ |
1649 | ac = 1; | | 1636 | ac = 1; |
1650 | av = bmake_malloc((ac + 1) * sizeof(char *)); | | 1637 | av = bmake_malloc((ac + 1) * sizeof(char *)); |
1651 | as = bmake_strdup(str); | | 1638 | as = bmake_strdup(str); |
1652 | av[0] = as; | | 1639 | av[0] = as; |
1653 | av[1] = NULL; | | 1640 | av[1] = NULL; |
1654 | } else { | | 1641 | } else { |
1655 | av = brk_string(str, &ac, FALSE, &as); | | 1642 | av = brk_string(str, &ac, FALSE, &as); |
1656 | } | | 1643 | } |
1657 | | | 1644 | |
1658 | /* | | 1645 | /* |
1659 | * Now sanitize seldata. | | 1646 | * Now sanitize seldata. |
1660 | * If seldata->start or seldata->end are negative, convert them to | | 1647 | * If seldata->start or seldata->end are negative, convert them to |
1661 | * the positive equivalents (-1 gets converted to argc, -2 gets | | 1648 | * the positive equivalents (-1 gets converted to argc, -2 gets |
1662 | * converted to (argc-1), etc.). | | 1649 | * converted to (argc-1), etc.). |
1663 | */ | | 1650 | */ |
1664 | if (seldata->start < 0) | | 1651 | if (seldata->start < 0) |
1665 | seldata->start = ac + seldata->start + 1; | | 1652 | seldata->start = ac + seldata->start + 1; |
1666 | if (seldata->end < 0) | | 1653 | if (seldata->end < 0) |
1667 | seldata->end = ac + seldata->end + 1; | | 1654 | seldata->end = ac + seldata->end + 1; |
1668 | | | 1655 | |
1669 | /* | | 1656 | /* |
1670 | * We avoid scanning more of the list than we need to. | | 1657 | * We avoid scanning more of the list than we need to. |
1671 | */ | | 1658 | */ |
1672 | if (seldata->start > seldata->end) { | | 1659 | if (seldata->start > seldata->end) { |
1673 | start = MIN(ac, seldata->start) - 1; | | 1660 | start = MIN(ac, seldata->start) - 1; |
1674 | end = MAX(0, seldata->end - 1); | | 1661 | end = MAX(0, seldata->end - 1); |
1675 | step = -1; | | 1662 | step = -1; |
1676 | } else { | | 1663 | } else { |
1677 | start = MAX(0, seldata->start - 1); | | 1664 | start = MAX(0, seldata->start - 1); |
1678 | end = MIN(ac, seldata->end); | | 1665 | end = MIN(ac, seldata->end); |
1679 | step = 1; | | 1666 | step = 1; |
1680 | } | | 1667 | } |
1681 | | | 1668 | |
1682 | for (i = start; | | 1669 | for (i = start; |
1683 | (step < 0 && i >= end) || (step > 0 && i < end); | | 1670 | (step < 0 && i >= end) || (step > 0 && i < end); |
1684 | i += step) { | | 1671 | i += step) { |
1685 | if (av[i] && *av[i]) { | | 1672 | if (av[i] && *av[i]) { |
1686 | if (addSpace && vpstate->varSpace) { | | 1673 | if (addSpace && vpstate->varSpace) { |
1687 | Buf_AddByte(&buf, vpstate->varSpace); | | 1674 | Buf_AddByte(&buf, vpstate->varSpace); |
1688 | } | | 1675 | } |
1689 | Buf_AddBytes(&buf, strlen(av[i]), av[i]); | | 1676 | Buf_AddBytes(&buf, strlen(av[i]), av[i]); |
1690 | addSpace = TRUE; | | 1677 | addSpace = TRUE; |
1691 | } | | 1678 | } |
1692 | } | | 1679 | } |
1693 | | | 1680 | |
1694 | free(as); | | 1681 | free(as); |
1695 | free(av); | | 1682 | free(av); |
1696 | | | 1683 | |
1697 | return Buf_Destroy(&buf, FALSE); | | 1684 | return Buf_Destroy(&buf, FALSE); |
1698 | } | | 1685 | } |
1699 | | | 1686 | |
1700 | | | 1687 | |
1701 | /* Callback function for VarModify to implement the :tA modifier. | | 1688 | /* Callback function for VarModify to implement the :tA modifier. |
1702 | * Replace each word with the result of realpath() if successful. */ | | 1689 | * Replace each word with the result of realpath() if successful. */ |
1703 | static Boolean | | 1690 | static Boolean |
1704 | VarRealpath(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, | | 1691 | VarRealpath(GNode *ctx MAKE_ATTR_UNUSED, Var_Parse_State *vpstate, |
1705 | char *word, Boolean addSpace, Buffer *buf, | | 1692 | char *word, Boolean addSpace, Buffer *buf, |
1706 | void *patternp MAKE_ATTR_UNUSED) | | 1693 | void *patternp MAKE_ATTR_UNUSED) |
1707 | { | | 1694 | { |
1708 | struct stat st; | | 1695 | struct stat st; |
1709 | char rbuf[MAXPATHLEN]; | | 1696 | char rbuf[MAXPATHLEN]; |
1710 | char *rp; | | 1697 | char *rp; |
1711 | | | 1698 | |
1712 | if (addSpace && vpstate->varSpace) | | 1699 | if (addSpace && vpstate->varSpace) |
1713 | Buf_AddByte(buf, vpstate->varSpace); | | 1700 | Buf_AddByte(buf, vpstate->varSpace); |
1714 | rp = cached_realpath(word, rbuf); | | 1701 | rp = cached_realpath(word, rbuf); |
1715 | if (rp && *rp == '/' && stat(rp, &st) == 0) | | 1702 | if (rp && *rp == '/' && stat(rp, &st) == 0) |
1716 | word = rp; | | 1703 | word = rp; |
1717 | | | 1704 | |
1718 | Buf_AddBytes(buf, strlen(word), word); | | 1705 | Buf_AddBytes(buf, strlen(word), word); |
1719 | return TRUE; | | 1706 | return TRUE; |
1720 | } | | 1707 | } |
1721 | | | 1708 | |
1722 | /*- | | 1709 | /*- |
1723 | *----------------------------------------------------------------------- | | 1710 | *----------------------------------------------------------------------- |
1724 | * Modify each of the words of the passed string using the given function. | | 1711 | * Modify each of the words of the passed string using the given function. |
1725 | * | | 1712 | * |
1726 | * Input: | | 1713 | * Input: |
1727 | * str String whose words should be trimmed | | 1714 | * str String whose words should be trimmed |
1728 | * modProc Function to use to modify them | | 1715 | * modProc Function to use to modify them |
1729 | * data Custom data for the modProc | | 1716 | * data Custom data for the modProc |
1730 | * | | 1717 | * |
1731 | * Results: | | 1718 | * Results: |
1732 | * A string of all the words modified appropriately. | | 1719 | * A string of all the words modified appropriately. |
1733 | * | | 1720 | * |
1734 | * Side Effects: | | 1721 | * Side Effects: |
1735 | * None. | | 1722 | * None. |
1736 | * | | 1723 | * |
1737 | *----------------------------------------------------------------------- | | 1724 | *----------------------------------------------------------------------- |
1738 | */ | | 1725 | */ |
1739 | static char * | | 1726 | static char * |
1740 | VarModify(GNode *ctx, Var_Parse_State *vpstate, | | 1727 | VarModify(GNode *ctx, Var_Parse_State *vpstate, |
1741 | const char *str, VarModifyCallback modProc, void *datum) | | 1728 | const char *str, VarModifyCallback modProc, void *datum) |
1742 | { | | 1729 | { |
1743 | Buffer buf; /* Buffer for the new string */ | | 1730 | Buffer buf; /* Buffer for the new string */ |
1744 | Boolean addSpace; /* TRUE if need to add a space to the | | 1731 | Boolean addSpace; /* TRUE if need to add a space to the |
1745 | * buffer before adding the trimmed word */ | | 1732 | * buffer before adding the trimmed word */ |
1746 | char **av; /* word list */ | | 1733 | char **av; /* word list */ |
1747 | char *as; /* word list memory */ | | 1734 | char *as; /* word list memory */ |
1748 | int ac, i; | | 1735 | int ac, i; |
1749 | | | 1736 | |
1750 | Buf_Init(&buf, 0); | | 1737 | Buf_Init(&buf, 0); |
1751 | addSpace = FALSE; | | 1738 | addSpace = FALSE; |
1752 | | | 1739 | |
1753 | if (vpstate->oneBigWord) { | | 1740 | if (vpstate->oneBigWord) { |
1754 | /* fake what brk_string() would do if there were only one word */ | | 1741 | /* fake what brk_string() would do if there were only one word */ |
1755 | ac = 1; | | 1742 | ac = 1; |
1756 | av = bmake_malloc((ac + 1) * sizeof(char *)); | | 1743 | av = bmake_malloc((ac + 1) * sizeof(char *)); |
1757 | as = bmake_strdup(str); | | 1744 | as = bmake_strdup(str); |
1758 | av[0] = as; | | 1745 | av[0] = as; |
1759 | av[1] = NULL; | | 1746 | av[1] = NULL; |
1760 | } else { | | 1747 | } else { |
1761 | av = brk_string(str, &ac, FALSE, &as); | | 1748 | av = brk_string(str, &ac, FALSE, &as); |
1762 | } | | 1749 | } |
1763 | | | 1750 | |
1764 | for (i = 0; i < ac; i++) | | 1751 | for (i = 0; i < ac; i++) |
1765 | addSpace = modProc(ctx, vpstate, av[i], addSpace, &buf, datum); | | 1752 | addSpace = modProc(ctx, vpstate, av[i], addSpace, &buf, datum); |
1766 | | | 1753 | |
1767 | free(as); | | 1754 | free(as); |
1768 | free(av); | | 1755 | free(av); |
1769 | | | 1756 | |
1770 | return Buf_Destroy(&buf, FALSE); | | 1757 | return Buf_Destroy(&buf, FALSE); |
1771 | } | | 1758 | } |
1772 | | | 1759 | |
1773 | | | 1760 | |
1774 | static int | | 1761 | static int |
1775 | VarWordCompare(const void *a, const void *b) | | 1762 | VarWordCompare(const void *a, const void *b) |
1776 | { | | 1763 | { |
1777 | int r = strcmp(*(const char * const *)a, *(const char * const *)b); | | 1764 | int r = strcmp(*(const char * const *)a, *(const char * const *)b); |
1778 | return r; | | 1765 | return r; |
1779 | } | | 1766 | } |
1780 | | | 1767 | |
1781 | static int | | 1768 | static int |
1782 | VarWordCompareReverse(const void *a, const void *b) | | 1769 | VarWordCompareReverse(const void *a, const void *b) |
1783 | { | | 1770 | { |
1784 | int r = strcmp(*(const char * const *)b, *(const char * const *)a); | | 1771 | int r = strcmp(*(const char * const *)b, *(const char * const *)a); |
1785 | return r; | | 1772 | return r; |
1786 | } | | 1773 | } |
1787 | | | 1774 | |
1788 | /*- | | 1775 | /*- |
1789 | *----------------------------------------------------------------------- | | 1776 | *----------------------------------------------------------------------- |
1790 | * VarOrder -- | | 1777 | * VarOrder -- |
1791 | * Order the words in the string. | | 1778 | * Order the words in the string. |
1792 | * | | 1779 | * |
1793 | * Input: | | 1780 | * Input: |
1794 | * str String whose words should be sorted. | | 1781 | * str String whose words should be sorted. |
1795 | * otype How to order: s - sort, x - random. | | 1782 | * otype How to order: s - sort, x - random. |
1796 | * | | 1783 | * |
1797 | * Results: | | 1784 | * Results: |
1798 | * A string containing the words ordered. | | 1785 | * A string containing the words ordered. |
1799 | * | | 1786 | * |
1800 | * Side Effects: | | 1787 | * Side Effects: |
1801 | * None. | | 1788 | * None. |
1802 | * | | 1789 | * |
1803 | *----------------------------------------------------------------------- | | 1790 | *----------------------------------------------------------------------- |
1804 | */ | | 1791 | */ |
1805 | static char * | | 1792 | static char * |
1806 | VarOrder(const char *str, const char otype) | | 1793 | VarOrder(const char *str, const char otype) |
1807 | { | | 1794 | { |
1808 | Buffer buf; /* Buffer for the new string */ | | 1795 | Buffer buf; /* Buffer for the new string */ |
1809 | char **av; /* word list [first word does not count] */ | | 1796 | char **av; /* word list [first word does not count] */ |
1810 | char *as; /* word list memory */ | | 1797 | char *as; /* word list memory */ |
1811 | int ac, i; | | 1798 | int ac, i; |
1812 | | | 1799 | |
1813 | Buf_Init(&buf, 0); | | 1800 | Buf_Init(&buf, 0); |
1814 | | | 1801 | |
1815 | av = brk_string(str, &ac, FALSE, &as); | | 1802 | av = brk_string(str, &ac, FALSE, &as); |
1816 | | | 1803 | |
1817 | if (ac > 0) { | | 1804 | if (ac > 0) { |
1818 | switch (otype) { | | 1805 | switch (otype) { |
1819 | case 'r': /* reverse sort alphabetically */ | | 1806 | case 'r': /* reverse sort alphabetically */ |
1820 | qsort(av, ac, sizeof(char *), VarWordCompareReverse); | | 1807 | qsort(av, ac, sizeof(char *), VarWordCompareReverse); |
1821 | break; | | 1808 | break; |
1822 | case 's': /* sort alphabetically */ | | 1809 | case 's': /* sort alphabetically */ |
1823 | qsort(av, ac, sizeof(char *), VarWordCompare); | | 1810 | qsort(av, ac, sizeof(char *), VarWordCompare); |
1824 | break; | | 1811 | break; |
1825 | case 'x': /* randomize */ | | 1812 | case 'x': /* randomize */ |
1826 | { | | 1813 | { |
1827 | /* | | 1814 | /* |
1828 | * We will use [ac..2] range for mod factors. This will produce | | 1815 | * We will use [ac..2] range for mod factors. This will produce |
1829 | * random numbers in [(ac-1)..0] interval, and minimal | | 1816 | * random numbers in [(ac-1)..0] interval, and minimal |
1830 | * reasonable value for mod factor is 2 (the mod 1 will produce | | 1817 | * reasonable value for mod factor is 2 (the mod 1 will produce |
1831 | * 0 with probability 1). | | 1818 | * 0 with probability 1). |
1832 | */ | | 1819 | */ |
1833 | for (i = ac - 1; i > 0; i--) { | | 1820 | for (i = ac - 1; i > 0; i--) { |
1834 | int rndidx = random() % (i + 1); | | 1821 | int rndidx = random() % (i + 1); |
1835 | char *t = av[i]; | | 1822 | char *t = av[i]; |
1836 | av[i] = av[rndidx]; | | 1823 | av[i] = av[rndidx]; |
1837 | av[rndidx] = t; | | 1824 | av[rndidx] = t; |
1838 | } | | 1825 | } |
1839 | } | | 1826 | } |
1840 | } | | 1827 | } |
1841 | } | | 1828 | } |
1842 | | | 1829 | |
1843 | for (i = 0; i < ac; i++) { | | 1830 | for (i = 0; i < ac; i++) { |
1844 | Buf_AddBytes(&buf, strlen(av[i]), av[i]); | | 1831 | Buf_AddBytes(&buf, strlen(av[i]), av[i]); |
1845 | if (i != ac - 1) | | 1832 | if (i != ac - 1) |
1846 | Buf_AddByte(&buf, ' '); | | 1833 | Buf_AddByte(&buf, ' '); |
1847 | } | | 1834 | } |
1848 | | | 1835 | |
1849 | free(as); | | 1836 | free(as); |
1850 | free(av); | | 1837 | free(av); |
1851 | | | 1838 | |
1852 | return Buf_Destroy(&buf, FALSE); | | 1839 | return Buf_Destroy(&buf, FALSE); |
1853 | } | | 1840 | } |
1854 | | | 1841 | |
1855 | | | 1842 | |
1856 | /*- | | 1843 | /*- |
1857 | *----------------------------------------------------------------------- | | 1844 | *----------------------------------------------------------------------- |
1858 | * VarUniq -- | | 1845 | * VarUniq -- |
1859 | * Remove adjacent duplicate words. | | 1846 | * Remove adjacent duplicate words. |
1860 | * | | 1847 | * |
1861 | * Input: | | 1848 | * Input: |
1862 | * str String whose words should be sorted | | 1849 | * str String whose words should be sorted |
1863 | * | | 1850 | * |
1864 | * Results: | | 1851 | * Results: |
1865 | * A string containing the resulting words. | | 1852 | * A string containing the resulting words. |
1866 | * | | 1853 | * |
1867 | * Side Effects: | | 1854 | * Side Effects: |
1868 | * None. | | 1855 | * None. |
1869 | * | | 1856 | * |
1870 | *----------------------------------------------------------------------- | | 1857 | *----------------------------------------------------------------------- |
1871 | */ | | 1858 | */ |
1872 | static char * | | 1859 | static char * |
1873 | VarUniq(const char *str) | | 1860 | VarUniq(const char *str) |
1874 | { | | 1861 | { |
1875 | Buffer buf; /* Buffer for new string */ | | 1862 | Buffer buf; /* Buffer for new string */ |
1876 | char **av; /* List of words to affect */ | | 1863 | char **av; /* List of words to affect */ |
1877 | char *as; /* Word list memory */ | | 1864 | char *as; /* Word list memory */ |
1878 | int ac, i, j; | | 1865 | int ac, i, j; |
1879 | | | 1866 | |
1880 | Buf_Init(&buf, 0); | | 1867 | Buf_Init(&buf, 0); |
1881 | av = brk_string(str, &ac, FALSE, &as); | | 1868 | av = brk_string(str, &ac, FALSE, &as); |
1882 | | | 1869 | |
1883 | if (ac > 1) { | | 1870 | if (ac > 1) { |
1884 | for (j = 0, i = 1; i < ac; i++) | | 1871 | for (j = 0, i = 1; i < ac; i++) |
1885 | if (strcmp(av[i], av[j]) != 0 && (++j != i)) | | 1872 | if (strcmp(av[i], av[j]) != 0 && (++j != i)) |
1886 | av[j] = av[i]; | | 1873 | av[j] = av[i]; |
1887 | ac = j + 1; | | 1874 | ac = j + 1; |
1888 | } | | 1875 | } |
1889 | | | 1876 | |
1890 | for (i = 0; i < ac; i++) { | | 1877 | for (i = 0; i < ac; i++) { |
1891 | Buf_AddBytes(&buf, strlen(av[i]), av[i]); | | 1878 | Buf_AddBytes(&buf, strlen(av[i]), av[i]); |
1892 | if (i != ac - 1) | | 1879 | if (i != ac - 1) |
1893 | Buf_AddByte(&buf, ' '); | | 1880 | Buf_AddByte(&buf, ' '); |
1894 | } | | 1881 | } |
1895 | | | 1882 | |
1896 | free(as); | | 1883 | free(as); |
1897 | free(av); | | 1884 | free(av); |
1898 | | | 1885 | |
1899 | return Buf_Destroy(&buf, FALSE); | | 1886 | return Buf_Destroy(&buf, FALSE); |
1900 | } | | 1887 | } |
1901 | | | 1888 | |
1902 | /*- | | 1889 | /*- |
1903 | *----------------------------------------------------------------------- | | 1890 | *----------------------------------------------------------------------- |
1904 | * VarRange -- | | 1891 | * VarRange -- |
1905 | * Return an integer sequence | | 1892 | * Return an integer sequence |
1906 | * | | 1893 | * |
1907 | * Input: | | 1894 | * Input: |
1908 | * str String whose words provide default range | | 1895 | * str String whose words provide default range |
1909 | * ac range length, if 0 use str words | | 1896 | * ac range length, if 0 use str words |
1910 | * | | 1897 | * |
1911 | * Side Effects: | | 1898 | * Side Effects: |
1912 | * None. | | 1899 | * None. |
1913 | * | | 1900 | * |
1914 | *----------------------------------------------------------------------- | | 1901 | *----------------------------------------------------------------------- |
1915 | */ | | 1902 | */ |
1916 | static char * | | 1903 | static char * |
1917 | VarRange(const char *str, int ac) | | 1904 | VarRange(const char *str, int ac) |
1918 | { | | 1905 | { |
1919 | Buffer buf; /* Buffer for new string */ | | 1906 | Buffer buf; /* Buffer for new string */ |
1920 | char tmp[32]; /* each element */ | | 1907 | char tmp[32]; /* each element */ |
1921 | char **av; /* List of words to affect */ | | 1908 | char **av; /* List of words to affect */ |
1922 | char *as; /* Word list memory */ | | 1909 | char *as; /* Word list memory */ |
1923 | int i, n; | | 1910 | int i, n; |
1924 | | | 1911 | |
1925 | Buf_Init(&buf, 0); | | 1912 | Buf_Init(&buf, 0); |
1926 | if (ac > 0) { | | 1913 | if (ac > 0) { |
1927 | as = NULL; | | 1914 | as = NULL; |
1928 | av = NULL; | | 1915 | av = NULL; |
1929 | } else { | | 1916 | } else { |
1930 | av = brk_string(str, &ac, FALSE, &as); | | 1917 | av = brk_string(str, &ac, FALSE, &as); |
1931 | } | | 1918 | } |
1932 | for (i = 0; i < ac; i++) { | | 1919 | for (i = 0; i < ac; i++) { |
1933 | n = snprintf(tmp, sizeof(tmp), "%d", 1 + i); | | 1920 | n = snprintf(tmp, sizeof(tmp), "%d", 1 + i); |
1934 | if (n >= (int)sizeof(tmp)) | | 1921 | if (n >= (int)sizeof(tmp)) |
1935 | break; | | 1922 | break; |
1936 | Buf_AddBytes(&buf, n, tmp); | | 1923 | Buf_AddBytes(&buf, n, tmp); |
1937 | if (i != ac - 1) | | 1924 | if (i != ac - 1) |
1938 | Buf_AddByte(&buf, ' '); | | 1925 | Buf_AddByte(&buf, ' '); |
1939 | } | | 1926 | } |
1940 | | | 1927 | |
1941 | free(as); | | 1928 | free(as); |
1942 | free(av); | | 1929 | free(av); |
1943 | | | 1930 | |
1944 | return Buf_Destroy(&buf, FALSE); | | 1931 | return Buf_Destroy(&buf, FALSE); |
1945 | } | | 1932 | } |
1946 | | | 1933 | |
1947 | | | 1934 | |
1948 | /*- | | 1935 | /*- |
1949 | *----------------------------------------------------------------------- | | 1936 | *----------------------------------------------------------------------- |
1950 | * VarGetPattern -- | | 1937 | * VarGetPattern -- |
1951 | * During the parsing of a part of a modifier such as :S or :@, | | 1938 | * During the parsing of a part of a modifier such as :S or :@, |
1952 | * pass through the tstr looking for 1) escaped delimiters, | | 1939 | * pass through the tstr looking for 1) escaped delimiters, |
1953 | * '$'s and backslashes (place the escaped character in | | 1940 | * '$'s and backslashes (place the escaped character in |
1954 | * uninterpreted) and 2) unescaped $'s that aren't before | | 1941 | * uninterpreted) and 2) unescaped $'s that aren't before |
1955 | * the delimiter (expand the variable substitution unless flags | | 1942 | * the delimiter (expand the variable substitution unless flags |
1956 | * has VAR_NOSUBST set). | | 1943 | * has VAR_NOSUBST set). |
1957 | * Return the expanded string or NULL if the delimiter was missing | | 1944 | * Return the expanded string or NULL if the delimiter was missing |
1958 | * If pattern is specified, handle escaped ampersands, and replace | | 1945 | * If pattern is specified, handle escaped ampersands, and replace |
1959 | * unescaped ampersands with the lhs of the pattern. | | 1946 | * unescaped ampersands with the lhs of the pattern. |
1960 | * | | 1947 | * |
1961 | * Results: | | 1948 | * Results: |
1962 | * A string of all the words modified appropriately. | | 1949 | * A string of all the words modified appropriately. |
1963 | * If length is specified, return the string length of the buffer | | 1950 | * If length is specified, return the string length of the buffer |
1964 | * If flags is specified and the last character of the pattern is a | | 1951 | * If flags is specified and the last character of the pattern is a |
1965 | * $ set the VAR_MATCH_END bit of flags. | | 1952 | * $ set the VAR_MATCH_END bit of flags. |
1966 | * | | 1953 | * |
1967 | * Side Effects: | | 1954 | * Side Effects: |
1968 | * None. | | 1955 | * None. |
1969 | *----------------------------------------------------------------------- | | 1956 | *----------------------------------------------------------------------- |
1970 | */ | | 1957 | */ |
1971 | static char * | | 1958 | static char * |
1972 | VarGetPattern(GNode *ctxt, Var_Parse_State *vpstate MAKE_ATTR_UNUSED, | | 1959 | VarGetPattern(GNode *ctxt, Var_Parse_State *vpstate MAKE_ATTR_UNUSED, |
1973 | VarPattern_Flags flags, const char **tstr, int delim, | | 1960 | VarPattern_Flags flags, const char **tstr, int delim, |
1974 | VarPattern_Flags *vflags, int *length, VarPattern *pattern) | | 1961 | VarPattern_Flags *vflags, int *length, VarPattern *pattern) |
1975 | { | | 1962 | { |
1976 | const char *cp; | | 1963 | const char *cp; |
1977 | char *rstr; | | 1964 | char *rstr; |
1978 | Buffer buf; | | 1965 | Buffer buf; |
1979 | int junk; | | 1966 | int junk; |
1980 | int errnum = flags & VARF_UNDEFERR; | | 1967 | int errnum = flags & VARF_UNDEFERR; |
1981 | | | 1968 | |
1982 | Buf_Init(&buf, 0); | | 1969 | Buf_Init(&buf, 0); |
1983 | if (length == NULL) | | 1970 | if (length == NULL) |
1984 | length = &junk; | | 1971 | length = &junk; |
1985 | | | 1972 | |
1986 | #define IS_A_MATCH(cp, delim) \ | | 1973 | #define IS_A_MATCH(cp, delim) \ |
1987 | ((cp[0] == '\\') && ((cp[1] == delim) || \ | | 1974 | ((cp[0] == '\\') && ((cp[1] == delim) || \ |
1988 | (cp[1] == '\\') || (cp[1] == '$') || (pattern && (cp[1] == '&')))) | | 1975 | (cp[1] == '\\') || (cp[1] == '$') || (pattern && (cp[1] == '&')))) |
1989 | | | 1976 | |
1990 | /* | | 1977 | /* |
1991 | * Skim through until the matching delimiter is found; | | 1978 | * Skim through until the matching delimiter is found; |
1992 | * pick up variable substitutions on the way. Also allow | | 1979 | * pick up variable substitutions on the way. Also allow |
1993 | * backslashes to quote the delimiter, $, and \, but don't | | 1980 | * backslashes to quote the delimiter, $, and \, but don't |
1994 | * touch other backslashes. | | 1981 | * touch other backslashes. |
1995 | */ | | 1982 | */ |
1996 | for (cp = *tstr; *cp && (*cp != delim); cp++) { | | 1983 | for (cp = *tstr; *cp && (*cp != delim); cp++) { |
1997 | if (IS_A_MATCH(cp, delim)) { | | 1984 | if (IS_A_MATCH(cp, delim)) { |
1998 | Buf_AddByte(&buf, cp[1]); | | 1985 | Buf_AddByte(&buf, cp[1]); |
1999 | cp++; | | 1986 | cp++; |
2000 | } else if (*cp == '$') { | | 1987 | } else if (*cp == '$') { |
2001 | if (cp[1] == delim) { | | 1988 | if (cp[1] == delim) { |
2002 | if (vflags == NULL) | | 1989 | if (vflags == NULL) |
2003 | Buf_AddByte(&buf, *cp); | | 1990 | Buf_AddByte(&buf, *cp); |
2004 | else | | 1991 | else |
2005 | /* | | 1992 | /* |
2006 | * Unescaped $ at end of pattern => anchor | | 1993 | * Unescaped $ at end of pattern => anchor |
2007 | * pattern at end. | | 1994 | * pattern at end. |
2008 | */ | | 1995 | */ |
2009 | *vflags |= VAR_MATCH_END; | | 1996 | *vflags |= VAR_MATCH_END; |
2010 | } else { | | 1997 | } else { |
2011 | if (vflags == NULL || (*vflags & VAR_NOSUBST) == 0) { | | 1998 | if (vflags == NULL || (*vflags & VAR_NOSUBST) == 0) { |
2012 | char *cp2; | | 1999 | char *cp2; |
2013 | int len; | | 2000 | int len; |
2014 | void *freeIt; | | 2001 | void *freeIt; |
2015 | | | 2002 | |
2016 | /* | | 2003 | /* |
2017 | * If unescaped dollar sign not before the | | 2004 | * If unescaped dollar sign not before the |
2018 | * delimiter, assume it's a variable | | 2005 | * delimiter, assume it's a variable |
2019 | * substitution and recurse. | | 2006 | * substitution and recurse. |
2020 | */ | | 2007 | */ |
2021 | cp2 = Var_Parse(cp, ctxt, errnum | | | 2008 | cp2 = Var_Parse(cp, ctxt, errnum | (flags & VARF_WANTRES), |
2022 | (flags & VARF_WANTRES), &len, &freeIt); | | 2009 | &len, &freeIt); |
2023 | Buf_AddBytes(&buf, strlen(cp2), cp2); | | 2010 | Buf_AddBytes(&buf, strlen(cp2), cp2); |
2024 | free(freeIt); | | 2011 | free(freeIt); |
2025 | cp += len - 1; | | 2012 | cp += len - 1; |
2026 | } else { | | 2013 | } else { |
2027 | const char *cp2 = &cp[1]; | | 2014 | const char *cp2 = &cp[1]; |
2028 | | | 2015 | |
2029 | if (*cp2 == PROPEN || *cp2 == BROPEN) { | | 2016 | if (*cp2 == PROPEN || *cp2 == BROPEN) { |
2030 | /* | | 2017 | /* |
2031 | * Find the end of this variable reference | | 2018 | * Find the end of this variable reference |
2032 | * and suck it in without further ado. | | 2019 | * and suck it in without further ado. |
2033 | * It will be interpreted later. | | 2020 | * It will be interpreted later. |
2034 | */ | | 2021 | */ |
2035 | int have = *cp2; | | 2022 | int have = *cp2; |
2036 | int want = (*cp2 == PROPEN) ? PRCLOSE : BRCLOSE; | | 2023 | int want = (*cp2 == PROPEN) ? PRCLOSE : BRCLOSE; |
2037 | int depth = 1; | | 2024 | int depth = 1; |
2038 | | | 2025 | |
2039 | for (++cp2; *cp2 != '\0' && depth > 0; ++cp2) { | | 2026 | for (++cp2; *cp2 != '\0' && depth > 0; ++cp2) { |
2040 | if (cp2[-1] != '\\') { | | 2027 | if (cp2[-1] != '\\') { |
2041 | if (*cp2 == have) | | 2028 | if (*cp2 == have) |
2042 | ++depth; | | 2029 | ++depth; |
2043 | if (*cp2 == want) | | 2030 | if (*cp2 == want) |
2044 | --depth; | | 2031 | --depth; |
2045 | } | | 2032 | } |
2046 | } | | 2033 | } |
2047 | Buf_AddBytes(&buf, cp2 - cp, cp); | | 2034 | Buf_AddBytes(&buf, cp2 - cp, cp); |
2048 | cp = --cp2; | | 2035 | cp = --cp2; |
2049 | } else | | 2036 | } else |
2050 | Buf_AddByte(&buf, *cp); | | 2037 | Buf_AddByte(&buf, *cp); |
2051 | } | | 2038 | } |
2052 | } | | 2039 | } |
2053 | } else if (pattern && *cp == '&') | | 2040 | } else if (pattern && *cp == '&') |
2054 | Buf_AddBytes(&buf, pattern->leftLen, pattern->lhs); | | 2041 | Buf_AddBytes(&buf, pattern->leftLen, pattern->lhs); |
2055 | else | | 2042 | else |
2056 | Buf_AddByte(&buf, *cp); | | 2043 | Buf_AddByte(&buf, *cp); |
2057 | } | | 2044 | } |
2058 | | | 2045 | |
2059 | if (*cp != delim) { | | 2046 | if (*cp != delim) { |
2060 | *tstr = cp; | | 2047 | *tstr = cp; |
2061 | *length = 0; | | 2048 | *length = 0; |
2062 | return NULL; | | 2049 | return NULL; |
2063 | } | | 2050 | } |
2064 | | | 2051 | |
2065 | *tstr = ++cp; | | 2052 | *tstr = ++cp; |
2066 | *length = Buf_Size(&buf); | | 2053 | *length = Buf_Size(&buf); |
2067 | rstr = Buf_Destroy(&buf, FALSE); | | 2054 | rstr = Buf_Destroy(&buf, FALSE); |
2068 | if (DEBUG(VAR)) | | 2055 | if (DEBUG(VAR)) |
2069 | fprintf(debug_file, "Modifier pattern: \"%s\"\n", rstr); | | 2056 | fprintf(debug_file, "Modifier pattern: \"%s\"\n", rstr); |
2070 | return rstr; | | 2057 | return rstr; |
2071 | } | | 2058 | } |
2072 | | | 2059 | |
2073 | /*- | | 2060 | /*- |
2074 | *----------------------------------------------------------------------- | | 2061 | *----------------------------------------------------------------------- |
2075 | * VarQuote -- | | 2062 | * VarQuote -- |
2076 | * Quote shell meta-characters and space characters in the string | | 2063 | * Quote shell meta-characters and space characters in the string |
2077 | * if quoteDollar is set, also quote and double any '$' characters. | | 2064 | * if quoteDollar is set, also quote and double any '$' characters. |
2078 | * | | 2065 | * |
2079 | * Results: | | 2066 | * Results: |
2080 | * The quoted string | | 2067 | * The quoted string |
2081 | * | | 2068 | * |
2082 | * Side Effects: | | 2069 | * Side Effects: |
2083 | * None. | | 2070 | * None. |
2084 | * | | 2071 | * |
2085 | *----------------------------------------------------------------------- | | 2072 | *----------------------------------------------------------------------- |
2086 | */ | | 2073 | */ |
2087 | static char * | | 2074 | static char * |
2088 | VarQuote(char *str, Boolean quoteDollar) | | 2075 | VarQuote(char *str, Boolean quoteDollar) |
2089 | { | | 2076 | { |
2090 | | | 2077 | |
2091 | Buffer buf; | | 2078 | Buffer buf; |
2092 | const char *newline; | | 2079 | const char *newline; |
2093 | size_t nlen; | | 2080 | size_t nlen; |
2094 | | | 2081 | |
2095 | if ((newline = Shell_GetNewline()) == NULL) | | 2082 | if ((newline = Shell_GetNewline()) == NULL) |
2096 | newline = "\\\n"; | | 2083 | newline = "\\\n"; |
2097 | nlen = strlen(newline); | | 2084 | nlen = strlen(newline); |
2098 | | | 2085 | |
2099 | Buf_Init(&buf, 0); | | 2086 | Buf_Init(&buf, 0); |
2100 | | | 2087 | |
2101 | for (; *str != '\0'; str++) { | | 2088 | for (; *str != '\0'; str++) { |
2102 | if (*str == '\n') { | | 2089 | if (*str == '\n') { |
2103 | Buf_AddBytes(&buf, nlen, newline); | | 2090 | Buf_AddBytes(&buf, nlen, newline); |
2104 | continue; | | 2091 | continue; |
2105 | } | | 2092 | } |
2106 | if (isspace((unsigned char)*str) || ismeta((unsigned char)*str)) | | 2093 | if (isspace((unsigned char)*str) || ismeta((unsigned char)*str)) |
2107 | Buf_AddByte(&buf, '\\'); | | 2094 | Buf_AddByte(&buf, '\\'); |
2108 | Buf_AddByte(&buf, *str); | | 2095 | Buf_AddByte(&buf, *str); |
2109 | if (quoteDollar && *str == '$') | | 2096 | if (quoteDollar && *str == '$') |
2110 | Buf_AddBytes(&buf, 2, "\\$"); | | 2097 | Buf_AddBytes(&buf, 2, "\\$"); |
2111 | } | | 2098 | } |
2112 | | | 2099 | |
2113 | str = Buf_Destroy(&buf, FALSE); | | 2100 | str = Buf_Destroy(&buf, FALSE); |
2114 | if (DEBUG(VAR)) | | 2101 | if (DEBUG(VAR)) |
2115 | fprintf(debug_file, "QuoteMeta: [%s]\n", str); | | 2102 | fprintf(debug_file, "QuoteMeta: [%s]\n", str); |
2116 | return str; | | 2103 | return str; |
2117 | } | | 2104 | } |
2118 | | | 2105 | |
2119 | /*- | | 2106 | /*- |
2120 | *----------------------------------------------------------------------- | | 2107 | *----------------------------------------------------------------------- |
2121 | * VarHash -- | | 2108 | * VarHash -- |
2122 | * Hash the string using the MurmurHash3 algorithm. | | 2109 | * Hash the string using the MurmurHash3 algorithm. |
2123 | * Output is computed using 32bit Little Endian arithmetic. | | 2110 | * Output is computed using 32bit Little Endian arithmetic. |
2124 | * | | 2111 | * |
2125 | * Input: | | 2112 | * Input: |
2126 | * str String to modify | | 2113 | * str String to modify |
2127 | * | | 2114 | * |
2128 | * Results: | | 2115 | * Results: |
2129 | * Hash value of str, encoded as 8 hex digits. | | 2116 | * Hash value of str, encoded as 8 hex digits. |
2130 | * | | 2117 | * |
2131 | * Side Effects: | | 2118 | * Side Effects: |
2132 | * None. | | 2119 | * None. |
2133 | * | | 2120 | * |
2134 | *----------------------------------------------------------------------- | | 2121 | *----------------------------------------------------------------------- |
2135 | */ | | 2122 | */ |
2136 | static char * | | 2123 | static char * |
2137 | VarHash(char *str) | | 2124 | VarHash(char *str) |
2138 | { | | 2125 | { |
2139 | static const char hexdigits[16] = "0123456789abcdef"; | | 2126 | static const char hexdigits[16] = "0123456789abcdef"; |
2140 | Buffer buf; | | 2127 | Buffer buf; |
2141 | size_t len, len2; | | 2128 | size_t len, len2; |
2142 | unsigned char *ustr = (unsigned char *)str; | | 2129 | unsigned char *ustr = (unsigned char *)str; |
2143 | uint32_t h, k, c1, c2; | | 2130 | uint32_t h, k, c1, c2; |
2144 | | | 2131 | |
2145 | h = 0x971e137bU; | | 2132 | h = 0x971e137bU; |
2146 | c1 = 0x95543787U; | | 2133 | c1 = 0x95543787U; |
2147 | c2 = 0x2ad7eb25U; | | 2134 | c2 = 0x2ad7eb25U; |
2148 | len2 = strlen(str); | | 2135 | len2 = strlen(str); |
2149 | | | 2136 | |
2150 | for (len = len2; len; ) { | | 2137 | for (len = len2; len; ) { |
2151 | k = 0; | | 2138 | k = 0; |
2152 | switch (len) { | | 2139 | switch (len) { |
2153 | default: | | 2140 | default: |
2154 | k = (ustr[3] << 24) | (ustr[2] << 16) | (ustr[1] << 8) | ustr[0]; | | 2141 | k = (ustr[3] << 24) | (ustr[2] << 16) | (ustr[1] << 8) | ustr[0]; |
2155 | len -= 4; | | 2142 | len -= 4; |
2156 | ustr += 4; | | 2143 | ustr += 4; |
2157 | break; | | 2144 | break; |
2158 | case 3: | | 2145 | case 3: |
2159 | k |= (ustr[2] << 16); | | 2146 | k |= (ustr[2] << 16); |
2160 | /* FALLTHROUGH */ | | 2147 | /* FALLTHROUGH */ |
2161 | case 2: | | 2148 | case 2: |
2162 | k |= (ustr[1] << 8); | | 2149 | k |= (ustr[1] << 8); |
2163 | /* FALLTHROUGH */ | | 2150 | /* FALLTHROUGH */ |
2164 | case 1: | | 2151 | case 1: |
2165 | k |= ustr[0]; | | 2152 | k |= ustr[0]; |
2166 | len = 0; | | 2153 | len = 0; |
2167 | } | | 2154 | } |
2168 | c1 = c1 * 5 + 0x7b7d159cU; | | 2155 | c1 = c1 * 5 + 0x7b7d159cU; |
2169 | c2 = c2 * 5 + 0x6bce6396U; | | 2156 | c2 = c2 * 5 + 0x6bce6396U; |
2170 | k *= c1; | | 2157 | k *= c1; |
2171 | k = (k << 11) ^ (k >> 21); | | 2158 | k = (k << 11) ^ (k >> 21); |
2172 | k *= c2; | | 2159 | k *= c2; |
2173 | h = (h << 13) ^ (h >> 19); | | 2160 | h = (h << 13) ^ (h >> 19); |
2174 | h = h * 5 + 0x52dce729U; | | 2161 | h = h * 5 + 0x52dce729U; |
2175 | h ^= k; | | 2162 | h ^= k; |
2176 | } | | 2163 | } |
2177 | h ^= len2; | | 2164 | h ^= len2; |
2178 | h *= 0x85ebca6b; | | 2165 | h *= 0x85ebca6b; |
2179 | h ^= h >> 13; | | 2166 | h ^= h >> 13; |
2180 | h *= 0xc2b2ae35; | | 2167 | h *= 0xc2b2ae35; |
2181 | h ^= h >> 16; | | 2168 | h ^= h >> 16; |
2182 | | | 2169 | |
2183 | Buf_Init(&buf, 0); | | 2170 | Buf_Init(&buf, 0); |
2184 | for (len = 0; len < 8; ++len) { | | 2171 | for (len = 0; len < 8; ++len) { |
2185 | Buf_AddByte(&buf, hexdigits[h & 15]); | | 2172 | Buf_AddByte(&buf, hexdigits[h & 15]); |
2186 | h >>= 4; | | 2173 | h >>= 4; |
2187 | } | | 2174 | } |
2188 | | | 2175 | |
2189 | return Buf_Destroy(&buf, FALSE); | | 2176 | return Buf_Destroy(&buf, FALSE); |
2190 | } | | 2177 | } |
2191 | | | 2178 | |
2192 | static char * | | 2179 | static char * |
2193 | VarStrftime(const char *fmt, int zulu, time_t utc) | | 2180 | VarStrftime(const char *fmt, int zulu, time_t utc) |
2194 | { | | 2181 | { |
2195 | char buf[BUFSIZ]; | | 2182 | char buf[BUFSIZ]; |
2196 | | | 2183 | |
2197 | if (!utc) | | 2184 | if (!utc) |
2198 | time(&utc); | | 2185 | time(&utc); |
2199 | if (!*fmt) | | 2186 | if (!*fmt) |
2200 | fmt = "%c"; | | 2187 | fmt = "%c"; |
2201 | strftime(buf, sizeof(buf), fmt, zulu ? gmtime(&utc) : localtime(&utc)); | | 2188 | strftime(buf, sizeof(buf), fmt, zulu ? gmtime(&utc) : localtime(&utc)); |
2202 | | | 2189 | |
2203 | buf[sizeof(buf) - 1] = '\0'; | | 2190 | buf[sizeof(buf) - 1] = '\0'; |
2204 | return bmake_strdup(buf); | | 2191 | return bmake_strdup(buf); |
2205 | } | | 2192 | } |
2206 | | | 2193 | |
2207 | typedef struct { | | 2194 | typedef struct { |
2208 | /* const parameters */ | | 2195 | /* const parameters */ |
2209 | int startc; | | 2196 | int startc; |
2210 | int endc; | | 2197 | int endc; |
2211 | Var *v; | | 2198 | Var *v; |
2212 | GNode *ctxt; | | 2199 | GNode *ctxt; |
2213 | int flags; | | 2200 | int flags; |
2214 | int *lengthPtr; | | 2201 | int *lengthPtr; |
2215 | void **freePtr; | | 2202 | void **freePtr; |
2216 | | | 2203 | |
2217 | /* read-write */ | | 2204 | /* read-write */ |
2218 | char *nstr; | | 2205 | char *nstr; |
2219 | const char *tstr; | | 2206 | const char *tstr; |
2220 | const char *start; | | 2207 | const char *start; |
2221 | const char *cp; /* Secondary pointer into str (place marker | | 2208 | const char *cp; /* Secondary pointer into str (place marker |
2222 | * for tstr) */ | | 2209 | * for tstr) */ |
2223 | char termc; /* Character which terminated scan */ | | 2210 | char termc; /* Character which terminated scan */ |
2224 | int cnt; /* Used to count brace pairs when variable in | | 2211 | int cnt; /* Used to count brace pairs when variable in |
2225 | * in parens or braces */ | | 2212 | * in parens or braces */ |
2226 | char delim; | | 2213 | char delim; |
2227 | int modifier; /* that we are processing */ | | 2214 | int modifier; /* that we are processing */ |
2228 | Var_Parse_State parsestate; /* Flags passed to helper functions */ | | 2215 | Var_Parse_State parsestate; /* Flags passed to helper functions */ |
2229 | | | 2216 | |
2230 | /* result */ | | 2217 | /* result */ |
2231 | char *newStr; /* New value to return */ | | 2218 | char *newStr; /* New value to return */ |
2232 | } ApplyModifiersState; | | 2219 | } ApplyModifiersState; |
2233 | | | 2220 | |
2234 | /* we now have some modifiers with long names */ | | 2221 | /* we now have some modifiers with long names */ |
2235 | #define STRMOD_MATCH(s, want, n) \ | | 2222 | #define STRMOD_MATCH(s, want, n) \ |
2236 | (strncmp(s, want, n) == 0 && (s[n] == st->endc || s[n] == ':')) | | 2223 | (strncmp(s, want, n) == 0 && (s[n] == st->endc || s[n] == ':')) |
2237 | #define STRMOD_MATCHX(s, want, n) \ | | 2224 | #define STRMOD_MATCHX(s, want, n) \ |
2238 | (strncmp(s, want, n) == 0 && \ | | 2225 | (strncmp(s, want, n) == 0 && \ |
2239 | (s[n] == st->endc || s[n] == ':' || s[n] == '=')) | | 2226 | (s[n] == st->endc || s[n] == ':' || s[n] == '=')) |
2240 | #define CHARMOD_MATCH(c) (c == st->endc || c == ':') | | 2227 | #define CHARMOD_MATCH(c) (c == st->endc || c == ':') |
2241 | | | 2228 | |
2242 | /* :@var@...${var}...@ */ | | 2229 | /* :@var@...${var}...@ */ |
2243 | static Boolean | | 2230 | static Boolean |
2244 | ApplyModifier_At(ApplyModifiersState *st) { | | 2231 | ApplyModifier_At(ApplyModifiersState *st) { |
2245 | VarLoop_t loop; | | 2232 | VarLoop_t loop; |
2246 | VarPattern_Flags vflags = VAR_NOSUBST; | | 2233 | VarPattern_Flags vflags = VAR_NOSUBST; |
2247 | | | 2234 | |
2248 | st->cp = ++(st->tstr); | | 2235 | st->cp = ++(st->tstr); |
2249 | st->delim = '@'; | | 2236 | st->delim = '@'; |
2250 | loop.tvar = VarGetPattern( | | 2237 | loop.tvar = VarGetPattern( |
2251 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 2238 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
2252 | &vflags, &loop.tvarLen, NULL); | | 2239 | &vflags, &loop.tvarLen, NULL); |
2253 | if (loop.tvar == NULL) | | 2240 | if (loop.tvar == NULL) |
2254 | return FALSE; | | 2241 | return FALSE; |
2255 | | | 2242 | |
2256 | loop.str = VarGetPattern( | | 2243 | loop.str = VarGetPattern( |
2257 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 2244 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
2258 | &vflags, &loop.strLen, NULL); | | 2245 | &vflags, &loop.strLen, NULL); |
2259 | if (loop.str == NULL) | | 2246 | if (loop.str == NULL) |
2260 | return FALSE; | | 2247 | return FALSE; |
2261 | | | 2248 | |
2262 | st->termc = *st->cp; | | 2249 | st->termc = *st->cp; |
2263 | st->delim = '\0'; | | 2250 | st->delim = '\0'; |
2264 | | | 2251 | |
2265 | loop.flags = st->flags & (VARF_UNDEFERR | VARF_WANTRES); | | 2252 | loop.flags = st->flags & (VARF_UNDEFERR | VARF_WANTRES); |
2266 | loop.ctxt = st->ctxt; | | 2253 | loop.ctxt = st->ctxt; |
2267 | st->newStr = VarModify( | | 2254 | st->newStr = VarModify( |
2268 | st->ctxt, &st->parsestate, st->nstr, VarLoopExpand, &loop); | | 2255 | st->ctxt, &st->parsestate, st->nstr, VarLoopExpand, &loop); |
2269 | Var_Delete(loop.tvar, st->ctxt); | | 2256 | Var_Delete(loop.tvar, st->ctxt); |
2270 | free(loop.tvar); | | 2257 | free(loop.tvar); |
2271 | free(loop.str); | | 2258 | free(loop.str); |
2272 | return TRUE; | | 2259 | return TRUE; |
2273 | } | | 2260 | } |
2274 | | | 2261 | |
2275 | /* :Ddefined or :Uundefined */ | | 2262 | /* :Ddefined or :Uundefined */ |
2276 | static void | | 2263 | static void |
2277 | ApplyModifier_Defined(ApplyModifiersState *st) | | 2264 | ApplyModifier_Defined(ApplyModifiersState *st) |
2278 | { | | 2265 | { |
2279 | Buffer buf; /* Buffer for patterns */ | | 2266 | Buffer buf; /* Buffer for patterns */ |
2280 | int nflags; | | 2267 | int nflags; |
2281 | | | 2268 | |
2282 | if (st->flags & VARF_WANTRES) { | | 2269 | if (st->flags & VARF_WANTRES) { |
2283 | int wantres; | | 2270 | int wantres; |
2284 | if (*st->tstr == 'U') | | 2271 | if (*st->tstr == 'U') |
2285 | wantres = ((st->v->flags & VAR_JUNK) != 0); | | 2272 | wantres = ((st->v->flags & VAR_JUNK) != 0); |
2286 | else | | 2273 | else |
2287 | wantres = ((st->v->flags & VAR_JUNK) == 0); | | 2274 | wantres = ((st->v->flags & VAR_JUNK) == 0); |
2288 | nflags = st->flags & ~VARF_WANTRES; | | 2275 | nflags = st->flags & ~VARF_WANTRES; |
2289 | if (wantres) | | 2276 | if (wantres) |
2290 | nflags |= VARF_WANTRES; | | 2277 | nflags |= VARF_WANTRES; |
2291 | } else | | 2278 | } else |
2292 | nflags = st->flags; | | 2279 | nflags = st->flags; |
2293 | | | 2280 | |
2294 | /* | | 2281 | /* |
2295 | * Pass through tstr looking for 1) escaped delimiters, | | 2282 | * Pass through tstr looking for 1) escaped delimiters, |
2296 | * '$'s and backslashes (place the escaped character in | | 2283 | * '$'s and backslashes (place the escaped character in |
2297 | * uninterpreted) and 2) unescaped $'s that aren't before | | 2284 | * uninterpreted) and 2) unescaped $'s that aren't before |
2298 | * the delimiter (expand the variable substitution). | | 2285 | * the delimiter (expand the variable substitution). |
2299 | * The result is left in the Buffer buf. | | 2286 | * The result is left in the Buffer buf. |
2300 | */ | | 2287 | */ |
2301 | Buf_Init(&buf, 0); | | 2288 | Buf_Init(&buf, 0); |
2302 | for (st->cp = st->tstr + 1; | | 2289 | for (st->cp = st->tstr + 1; |
2303 | *st->cp != st->endc && *st->cp != ':' && *st->cp != '\0'; | | 2290 | *st->cp != st->endc && *st->cp != ':' && *st->cp != '\0'; |
2304 | st->cp++) { | | 2291 | st->cp++) { |
2305 | if (*st->cp == '\\' && | | 2292 | if (*st->cp == '\\' && |
2306 | (st->cp[1] == ':' || st->cp[1] == '$' || st->cp[1] == st->endc || | | 2293 | (st->cp[1] == ':' || st->cp[1] == '$' || st->cp[1] == st->endc || |
2307 | st->cp[1] == '\\')) { | | 2294 | st->cp[1] == '\\')) { |
2308 | Buf_AddByte(&buf, st->cp[1]); | | 2295 | Buf_AddByte(&buf, st->cp[1]); |
2309 | st->cp++; | | 2296 | st->cp++; |
2310 | } else if (*st->cp == '$') { | | 2297 | } else if (*st->cp == '$') { |
2311 | /* | | 2298 | /* |
2312 | * If unescaped dollar sign, assume it's a | | 2299 | * If unescaped dollar sign, assume it's a |
2313 | * variable substitution and recurse. | | 2300 | * variable substitution and recurse. |
2314 | */ | | 2301 | */ |
2315 | char *cp2; | | 2302 | char *cp2; |
2316 | int len; | | 2303 | int len; |
2317 | void *freeIt; | | 2304 | void *freeIt; |
2318 | | | 2305 | |
2319 | cp2 = Var_Parse(st->cp, st->ctxt, nflags, &len, &freeIt); | | 2306 | cp2 = Var_Parse(st->cp, st->ctxt, nflags, &len, &freeIt); |
2320 | Buf_AddBytes(&buf, strlen(cp2), cp2); | | 2307 | Buf_AddBytes(&buf, strlen(cp2), cp2); |
2321 | free(freeIt); | | 2308 | free(freeIt); |
2322 | st->cp += len - 1; | | 2309 | st->cp += len - 1; |
2323 | } else { | | 2310 | } else { |
2324 | Buf_AddByte(&buf, *st->cp); | | 2311 | Buf_AddByte(&buf, *st->cp); |
2325 | } | | 2312 | } |
2326 | } | | 2313 | } |
2327 | | | 2314 | |
2328 | st->termc = *st->cp; | | 2315 | st->termc = *st->cp; |
2329 | | | 2316 | |
2330 | if ((st->v->flags & VAR_JUNK) != 0) | | 2317 | if ((st->v->flags & VAR_JUNK) != 0) |
2331 | st->v->flags |= VAR_KEEP; | | 2318 | st->v->flags |= VAR_KEEP; |
2332 | if (nflags & VARF_WANTRES) { | | 2319 | if (nflags & VARF_WANTRES) { |
2333 | st->newStr = Buf_Destroy(&buf, FALSE); | | 2320 | st->newStr = Buf_Destroy(&buf, FALSE); |
2334 | } else { | | 2321 | } else { |
2335 | st->newStr = st->nstr; | | 2322 | st->newStr = st->nstr; |
2336 | Buf_Destroy(&buf, TRUE); | | 2323 | Buf_Destroy(&buf, TRUE); |
2337 | } | | 2324 | } |
2338 | } | | 2325 | } |
2339 | | | 2326 | |
2340 | /* :gmtime */ | | 2327 | /* :gmtime */ |
2341 | static Boolean | | 2328 | static Boolean |
2342 | ApplyModifier_Gmtime(ApplyModifiersState *st) | | 2329 | ApplyModifier_Gmtime(ApplyModifiersState *st) |
2343 | { | | 2330 | { |
2344 | time_t utc; | | 2331 | time_t utc; |
2345 | char *ep; | | 2332 | char *ep; |
2346 | | | 2333 | |
2347 | st->cp = st->tstr + 1; /* make sure it is set */ | | 2334 | st->cp = st->tstr + 1; /* make sure it is set */ |
2348 | if (!STRMOD_MATCHX(st->tstr, "gmtime", 6)) | | 2335 | if (!STRMOD_MATCHX(st->tstr, "gmtime", 6)) |
2349 | return FALSE; | | 2336 | return FALSE; |
2350 | if (st->tstr[6] == '=') { | | 2337 | if (st->tstr[6] == '=') { |
2351 | utc = strtoul(&st->tstr[7], &ep, 10); | | 2338 | utc = strtoul(&st->tstr[7], &ep, 10); |
2352 | st->cp = ep; | | 2339 | st->cp = ep; |
2353 | } else { | | 2340 | } else { |
2354 | utc = 0; | | 2341 | utc = 0; |
2355 | st->cp = st->tstr + 6; | | 2342 | st->cp = st->tstr + 6; |
2356 | } | | 2343 | } |
2357 | st->newStr = VarStrftime(st->nstr, 1, utc); | | 2344 | st->newStr = VarStrftime(st->nstr, 1, utc); |
2358 | st->termc = *st->cp; | | 2345 | st->termc = *st->cp; |
2359 | return TRUE; | | 2346 | return TRUE; |
2360 | } | | 2347 | } |
2361 | | | 2348 | |
2362 | /* :localtime */ | | 2349 | /* :localtime */ |
2363 | static Boolean | | 2350 | static Boolean |
2364 | ApplyModifier_Localtime(ApplyModifiersState *st) | | 2351 | ApplyModifier_Localtime(ApplyModifiersState *st) |
2365 | { | | 2352 | { |
2366 | time_t utc; | | 2353 | time_t utc; |
2367 | char *ep; | | 2354 | char *ep; |
2368 | | | 2355 | |
2369 | st->cp = st->tstr + 1; /* make sure it is set */ | | 2356 | st->cp = st->tstr + 1; /* make sure it is set */ |
2370 | if (!STRMOD_MATCHX(st->tstr, "localtime", 9)) | | 2357 | if (!STRMOD_MATCHX(st->tstr, "localtime", 9)) |
2371 | return FALSE; | | 2358 | return FALSE; |
2372 | | | 2359 | |
2373 | if (st->tstr[9] == '=') { | | 2360 | if (st->tstr[9] == '=') { |
2374 | utc = strtoul(&st->tstr[10], &ep, 10); | | 2361 | utc = strtoul(&st->tstr[10], &ep, 10); |
2375 | st->cp = ep; | | 2362 | st->cp = ep; |
2376 | } else { | | 2363 | } else { |
2377 | utc = 0; | | 2364 | utc = 0; |
2378 | st->cp = st->tstr + 9; | | 2365 | st->cp = st->tstr + 9; |
2379 | } | | 2366 | } |
2380 | st->newStr = VarStrftime(st->nstr, 0, utc); | | 2367 | st->newStr = VarStrftime(st->nstr, 0, utc); |
2381 | st->termc = *st->cp; | | 2368 | st->termc = *st->cp; |
2382 | return TRUE; | | 2369 | return TRUE; |
2383 | } | | 2370 | } |
2384 | | | 2371 | |
2385 | /* :hash */ | | 2372 | /* :hash */ |
2386 | static Boolean | | 2373 | static Boolean |
2387 | ApplyModifier_Hash(ApplyModifiersState *st) | | 2374 | ApplyModifier_Hash(ApplyModifiersState *st) |
2388 | { | | 2375 | { |
2389 | st->cp = st->tstr + 1; /* make sure it is set */ | | 2376 | st->cp = st->tstr + 1; /* make sure it is set */ |
2390 | if (!STRMOD_MATCH(st->tstr, "hash", 4)) | | 2377 | if (!STRMOD_MATCH(st->tstr, "hash", 4)) |
2391 | return FALSE; | | 2378 | return FALSE; |
2392 | st->newStr = VarHash(st->nstr); | | 2379 | st->newStr = VarHash(st->nstr); |
2393 | st->cp = st->tstr + 4; | | 2380 | st->cp = st->tstr + 4; |
2394 | st->termc = *st->cp; | | 2381 | st->termc = *st->cp; |
2395 | return TRUE; | | 2382 | return TRUE; |
2396 | } | | 2383 | } |
2397 | | | 2384 | |
2398 | /* :P */ | | 2385 | /* :P */ |
2399 | static void | | 2386 | static void |
2400 | ApplyModifier_Path(ApplyModifiersState *st) | | 2387 | ApplyModifier_Path(ApplyModifiersState *st) |
2401 | { | | 2388 | { |
2402 | GNode *gn; | | 2389 | GNode *gn; |
2403 | | | 2390 | |
2404 | if ((st->v->flags & VAR_JUNK) != 0) | | 2391 | if ((st->v->flags & VAR_JUNK) != 0) |
2405 | st->v->flags |= VAR_KEEP; | | 2392 | st->v->flags |= VAR_KEEP; |
2406 | gn = Targ_FindNode(st->v->name, TARG_NOCREATE); | | 2393 | gn = Targ_FindNode(st->v->name, TARG_NOCREATE); |
2407 | if (gn == NULL || gn->type & OP_NOPATH) { | | 2394 | if (gn == NULL || gn->type & OP_NOPATH) { |
2408 | st->newStr = NULL; | | 2395 | st->newStr = NULL; |
2409 | } else if (gn->path) { | | 2396 | } else if (gn->path) { |
2410 | st->newStr = bmake_strdup(gn->path); | | 2397 | st->newStr = bmake_strdup(gn->path); |
2411 | } else { | | 2398 | } else { |
2412 | st->newStr = Dir_FindFile(st->v->name, Suff_FindPath(gn)); | | 2399 | st->newStr = Dir_FindFile(st->v->name, Suff_FindPath(gn)); |
2413 | } | | 2400 | } |
2414 | if (!st->newStr) | | 2401 | if (!st->newStr) |
2415 | st->newStr = bmake_strdup(st->v->name); | | 2402 | st->newStr = bmake_strdup(st->v->name); |
2416 | st->cp = ++st->tstr; | | 2403 | st->cp = ++st->tstr; |
2417 | st->termc = *st->tstr; | | 2404 | st->termc = *st->tstr; |
2418 | } | | 2405 | } |
2419 | | | 2406 | |
2420 | /* :!cmd! */ | | 2407 | /* :!cmd! */ |
2421 | static Boolean | | 2408 | static Boolean |
2422 | ApplyModifier_Exclam(ApplyModifiersState *st) | | 2409 | ApplyModifier_Exclam(ApplyModifiersState *st) |
2423 | { | | 2410 | { |
2424 | const char *emsg; | | 2411 | const char *emsg; |
2425 | VarPattern pattern; | | 2412 | VarPattern pattern; |
2426 | | | 2413 | |
2427 | pattern.flags = 0; | | 2414 | pattern.flags = 0; |
2428 | | | 2415 | |
2429 | st->delim = '!'; | | 2416 | st->delim = '!'; |
2430 | emsg = NULL; | | 2417 | emsg = NULL; |
2431 | st->cp = ++st->tstr; | | 2418 | st->cp = ++st->tstr; |
2432 | pattern.rhs = VarGetPattern( | | 2419 | pattern.rhs = VarGetPattern( |
2433 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 2420 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
2434 | NULL, &pattern.rightLen, NULL); | | 2421 | NULL, &pattern.rightLen, NULL); |
2435 | if (pattern.rhs == NULL) | | 2422 | if (pattern.rhs == NULL) |
2436 | return FALSE; | | 2423 | return FALSE; |
2437 | if (st->flags & VARF_WANTRES) | | 2424 | if (st->flags & VARF_WANTRES) |
2438 | st->newStr = Cmd_Exec(pattern.rhs, &emsg); | | 2425 | st->newStr = Cmd_Exec(pattern.rhs, &emsg); |
2439 | else | | 2426 | else |
2440 | st->newStr = varNoError; | | 2427 | st->newStr = varNoError; |
2441 | free(UNCONST(pattern.rhs)); | | 2428 | free(UNCONST(pattern.rhs)); |
2442 | if (emsg) | | 2429 | if (emsg) |
2443 | Error(emsg, st->nstr); | | 2430 | Error(emsg, st->nstr); |
2444 | st->termc = *st->cp; | | 2431 | st->termc = *st->cp; |
2445 | st->delim = '\0'; | | 2432 | st->delim = '\0'; |
2446 | if (st->v->flags & VAR_JUNK) | | 2433 | if (st->v->flags & VAR_JUNK) |
2447 | st->v->flags |= VAR_KEEP; | | 2434 | st->v->flags |= VAR_KEEP; |
2448 | return TRUE; | | 2435 | return TRUE; |
2449 | } | | 2436 | } |
2450 | | | 2437 | |
2451 | /* :range */ | | 2438 | /* :range */ |
2452 | static Boolean | | 2439 | static Boolean |
2453 | ApplyModifier_Range(ApplyModifiersState *st) | | 2440 | ApplyModifier_Range(ApplyModifiersState *st) |
2454 | { | | 2441 | { |
2455 | int n; | | 2442 | int n; |
2456 | char *ep; | | 2443 | char *ep; |
2457 | | | 2444 | |
2458 | st->cp = st->tstr + 1; /* make sure it is set */ | | 2445 | st->cp = st->tstr + 1; /* make sure it is set */ |
2459 | if (!STRMOD_MATCHX(st->tstr, "range", 5)) | | 2446 | if (!STRMOD_MATCHX(st->tstr, "range", 5)) |
2460 | return FALSE; | | 2447 | return FALSE; |
2461 | | | 2448 | |
2462 | if (st->tstr[5] == '=') { | | 2449 | if (st->tstr[5] == '=') { |
2463 | n = strtoul(&st->tstr[6], &ep, 10); | | 2450 | n = strtoul(&st->tstr[6], &ep, 10); |
2464 | st->cp = ep; | | 2451 | st->cp = ep; |
2465 | } else { | | 2452 | } else { |
2466 | n = 0; | | 2453 | n = 0; |
2467 | st->cp = st->tstr + 5; | | 2454 | st->cp = st->tstr + 5; |
2468 | } | | 2455 | } |
2469 | st->newStr = VarRange(st->nstr, n); | | 2456 | st->newStr = VarRange(st->nstr, n); |
2470 | st->termc = *st->cp; | | 2457 | st->termc = *st->cp; |
2471 | return TRUE; | | 2458 | return TRUE; |
2472 | } | | 2459 | } |
2473 | | | 2460 | |
2474 | /* :Mpattern or :Npattern */ | | 2461 | /* :Mpattern or :Npattern */ |
2475 | static void | | 2462 | static void |
2476 | ApplyModifier_Match(ApplyModifiersState *st) | | 2463 | ApplyModifier_Match(ApplyModifiersState *st) |
2477 | { | | 2464 | { |
2478 | char *pattern; | | 2465 | char *pattern; |
2479 | const char *endpat; /* points just after end of pattern */ | | 2466 | const char *endpat; /* points just after end of pattern */ |
2480 | char *cp2; | | 2467 | char *cp2; |
2481 | Boolean copy; /* pattern should be, or has been, copied */ | | 2468 | Boolean copy; /* pattern should be, or has been, copied */ |
2482 | Boolean needSubst; | | 2469 | Boolean needSubst; |
2483 | int nest; | | 2470 | int nest; |
2484 | | | 2471 | |
2485 | copy = FALSE; | | 2472 | copy = FALSE; |
2486 | needSubst = FALSE; | | 2473 | needSubst = FALSE; |
2487 | nest = 1; | | 2474 | nest = 1; |
2488 | /* | | 2475 | /* |
2489 | * In the loop below, ignore ':' unless we are at | | 2476 | * In the loop below, ignore ':' unless we are at |
2490 | * (or back to) the original brace level. | | 2477 | * (or back to) the original brace level. |
2491 | * XXX This will likely not work right if $() and ${} | | 2478 | * XXX This will likely not work right if $() and ${} |
2492 | * are intermixed. | | 2479 | * are intermixed. |
2493 | */ | | 2480 | */ |
2494 | for (st->cp = st->tstr + 1; | | 2481 | for (st->cp = st->tstr + 1; |
2495 | *st->cp != '\0' && !(*st->cp == ':' && nest == 1); | | 2482 | *st->cp != '\0' && !(*st->cp == ':' && nest == 1); |
2496 | st->cp++) { | | 2483 | st->cp++) { |
2497 | if (*st->cp == '\\' && | | 2484 | if (*st->cp == '\\' && |
2498 | (st->cp[1] == ':' || st->cp[1] == st->endc || | | 2485 | (st->cp[1] == ':' || st->cp[1] == st->endc || |
2499 | st->cp[1] == st->startc)) { | | 2486 | st->cp[1] == st->startc)) { |
2500 | if (!needSubst) | | 2487 | if (!needSubst) |
2501 | copy = TRUE; | | 2488 | copy = TRUE; |
2502 | st->cp++; | | 2489 | st->cp++; |
2503 | continue; | | 2490 | continue; |
2504 | } | | 2491 | } |
2505 | if (*st->cp == '$') | | 2492 | if (*st->cp == '$') |
2506 | needSubst = TRUE; | | 2493 | needSubst = TRUE; |
2507 | if (*st->cp == '(' || *st->cp == '{') | | 2494 | if (*st->cp == '(' || *st->cp == '{') |
2508 | ++nest; | | 2495 | ++nest; |
2509 | if (*st->cp == ')' || *st->cp == '}') { | | 2496 | if (*st->cp == ')' || *st->cp == '}') { |
2510 | --nest; | | 2497 | --nest; |
2511 | if (nest == 0) | | 2498 | if (nest == 0) |
2512 | break; | | 2499 | break; |
2513 | } | | 2500 | } |
2514 | } | | 2501 | } |
2515 | st->termc = *st->cp; | | 2502 | st->termc = *st->cp; |
2516 | endpat = st->cp; | | 2503 | endpat = st->cp; |
2517 | if (copy) { | | 2504 | if (copy) { |
2518 | /* | | 2505 | /* |
2519 | * Need to compress the \:'s out of the pattern, so | | 2506 | * Need to compress the \:'s out of the pattern, so |
2520 | * allocate enough room to hold the uncompressed | | 2507 | * allocate enough room to hold the uncompressed |
2521 | * pattern (note that st->cp started at st->tstr+1, so | | 2508 | * pattern (note that st->cp started at st->tstr+1, so |
2522 | * st->cp - st->tstr takes the null byte into account) and | | 2509 | * st->cp - st->tstr takes the null byte into account) and |
2523 | * compress the pattern into the space. | | 2510 | * compress the pattern into the space. |
2524 | */ | | 2511 | */ |
2525 | pattern = bmake_malloc(st->cp - st->tstr); | | 2512 | pattern = bmake_malloc(st->cp - st->tstr); |
2526 | for (cp2 = pattern, st->cp = st->tstr + 1; | | 2513 | for (cp2 = pattern, st->cp = st->tstr + 1; |
2527 | st->cp < endpat; | | 2514 | st->cp < endpat; |
2528 | st->cp++, cp2++) { | | 2515 | st->cp++, cp2++) { |
2529 | if ((*st->cp == '\\') && (st->cp+1 < endpat) && | | 2516 | if ((*st->cp == '\\') && (st->cp+1 < endpat) && |
2530 | (st->cp[1] == ':' || st->cp[1] == st->endc)) | | 2517 | (st->cp[1] == ':' || st->cp[1] == st->endc)) |
2531 | st->cp++; | | 2518 | st->cp++; |
2532 | *cp2 = *st->cp; | | 2519 | *cp2 = *st->cp; |
2533 | } | | 2520 | } |
2534 | *cp2 = '\0'; | | 2521 | *cp2 = '\0'; |
2535 | endpat = cp2; | | 2522 | endpat = cp2; |
2536 | } else { | | 2523 | } else { |
2537 | /* | | 2524 | /* |
2538 | * Either Var_Subst or VarModify will need a | | 2525 | * Either Var_Subst or VarModify will need a |
2539 | * nul-terminated string soon, so construct one now. | | 2526 | * nul-terminated string soon, so construct one now. |
2540 | */ | | 2527 | */ |
2541 | pattern = bmake_strndup(st->tstr+1, endpat - (st->tstr + 1)); | | 2528 | pattern = bmake_strndup(st->tstr+1, endpat - (st->tstr + 1)); |
2542 | } | | 2529 | } |
2543 | if (needSubst) { | | 2530 | if (needSubst) { |
2544 | /* pattern contains embedded '$', so use Var_Subst to expand it. */ | | 2531 | /* pattern contains embedded '$', so use Var_Subst to expand it. */ |
2545 | cp2 = pattern; | | 2532 | cp2 = pattern; |
2546 | pattern = Var_Subst(NULL, cp2, st->ctxt, st->flags); | | 2533 | pattern = Var_Subst(NULL, cp2, st->ctxt, st->flags); |
2547 | free(cp2); | | 2534 | free(cp2); |
2548 | } | | 2535 | } |
2549 | if (DEBUG(VAR)) | | 2536 | if (DEBUG(VAR)) |
2550 | fprintf(debug_file, "Pattern[%s] for [%s] is [%s]\n", | | 2537 | fprintf(debug_file, "Pattern[%s] for [%s] is [%s]\n", |
2551 | st->v->name, st->nstr, pattern); | | 2538 | st->v->name, st->nstr, pattern); |
2552 | if (*st->tstr == 'M') { | | 2539 | if (*st->tstr == 'M') { |
2553 | st->newStr = VarModify(st->ctxt, &st->parsestate, st->nstr, VarMatch, | | 2540 | st->newStr = VarModify(st->ctxt, &st->parsestate, st->nstr, VarMatch, |
2554 | pattern); | | 2541 | pattern); |
2555 | } else { | | 2542 | } else { |
2556 | st->newStr = VarModify(st->ctxt, &st->parsestate, st->nstr, VarNoMatch, | | 2543 | st->newStr = VarModify(st->ctxt, &st->parsestate, st->nstr, VarNoMatch, |
2557 | pattern); | | 2544 | pattern); |
2558 | } | | 2545 | } |
2559 | free(pattern); | | 2546 | free(pattern); |
2560 | } | | 2547 | } |
2561 | | | 2548 | |
2562 | /* :S,from,to, */ | | 2549 | /* :S,from,to, */ |
2563 | static Boolean | | 2550 | static Boolean |
2564 | ApplyModifier_Subst(ApplyModifiersState *st) | | 2551 | ApplyModifier_Subst(ApplyModifiersState *st) |
2565 | { | | 2552 | { |
2566 | VarPattern pattern; | | 2553 | VarPattern pattern; |
2567 | Var_Parse_State tmpparsestate; | | 2554 | Var_Parse_State tmpparsestate; |
2568 | | | 2555 | |
2569 | pattern.flags = 0; | | 2556 | pattern.flags = 0; |
2570 | tmpparsestate = st->parsestate; | | 2557 | tmpparsestate = st->parsestate; |
2571 | st->delim = st->tstr[1]; | | 2558 | st->delim = st->tstr[1]; |
2572 | st->tstr += 2; | | 2559 | st->tstr += 2; |
2573 | | | 2560 | |
2574 | /* | | 2561 | /* |
2575 | * If pattern begins with '^', it is anchored to the | | 2562 | * If pattern begins with '^', it is anchored to the |
2576 | * start of the word -- skip over it and flag pattern. | | 2563 | * start of the word -- skip over it and flag pattern. |
2577 | */ | | 2564 | */ |
2578 | if (*st->tstr == '^') { | | 2565 | if (*st->tstr == '^') { |
2579 | pattern.flags |= VAR_MATCH_START; | | 2566 | pattern.flags |= VAR_MATCH_START; |
2580 | st->tstr += 1; | | 2567 | st->tstr += 1; |
2581 | } | | 2568 | } |
2582 | | | 2569 | |
2583 | st->cp = st->tstr; | | 2570 | st->cp = st->tstr; |
2584 | pattern.lhs = VarGetPattern( | | 2571 | pattern.lhs = VarGetPattern( |
2585 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 2572 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
2586 | &pattern.flags, &pattern.leftLen, NULL); | | 2573 | &pattern.flags, &pattern.leftLen, NULL); |
2587 | if (pattern.lhs == NULL) | | 2574 | if (pattern.lhs == NULL) |
2588 | return FALSE; | | 2575 | return FALSE; |
2589 | | | 2576 | |
2590 | pattern.rhs = VarGetPattern( | | 2577 | pattern.rhs = VarGetPattern( |
2591 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 2578 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
2592 | NULL, &pattern.rightLen, &pattern); | | 2579 | NULL, &pattern.rightLen, &pattern); |
2593 | if (pattern.rhs == NULL) | | 2580 | if (pattern.rhs == NULL) |
2594 | return FALSE; | | 2581 | return FALSE; |
2595 | | | 2582 | |
2596 | /* | | 2583 | /* |
2597 | * Check for global substitution. If 'g' after the final | | 2584 | * Check for global substitution. If 'g' after the final |
2598 | * delimiter, substitution is global and is marked that | | 2585 | * delimiter, substitution is global and is marked that |
2599 | * way. | | 2586 | * way. |
2600 | */ | | 2587 | */ |
2601 | for (;; st->cp++) { | | 2588 | for (;; st->cp++) { |
2602 | switch (*st->cp) { | | 2589 | switch (*st->cp) { |
2603 | case 'g': | | 2590 | case 'g': |
2604 | pattern.flags |= VAR_SUB_GLOBAL; | | 2591 | pattern.flags |= VAR_SUB_GLOBAL; |
2605 | continue; | | 2592 | continue; |
2606 | case '1': | | 2593 | case '1': |
2607 | pattern.flags |= VAR_SUB_ONE; | | 2594 | pattern.flags |= VAR_SUB_ONE; |
2608 | continue; | | 2595 | continue; |
2609 | case 'W': | | 2596 | case 'W': |
2610 | tmpparsestate.oneBigWord = TRUE; | | 2597 | tmpparsestate.oneBigWord = TRUE; |
2611 | continue; | | 2598 | continue; |
2612 | } | | 2599 | } |
2613 | break; | | 2600 | break; |
2614 | } | | 2601 | } |
2615 | | | 2602 | |
2616 | st->termc = *st->cp; | | 2603 | st->termc = *st->cp; |
2617 | st->newStr = VarModify( | | 2604 | st->newStr = VarModify( |
2618 | st->ctxt, &tmpparsestate, st->nstr, VarSubstitute, &pattern); | | 2605 | st->ctxt, &tmpparsestate, st->nstr, VarSubstitute, &pattern); |
2619 | | | 2606 | |
2620 | /* Free the two strings. */ | | 2607 | /* Free the two strings. */ |
2621 | free(UNCONST(pattern.lhs)); | | 2608 | free(UNCONST(pattern.lhs)); |
2622 | free(UNCONST(pattern.rhs)); | | 2609 | free(UNCONST(pattern.rhs)); |
2623 | st->delim = '\0'; | | 2610 | st->delim = '\0'; |
2624 | return TRUE; | | 2611 | return TRUE; |
2625 | } | | 2612 | } |
2626 | | | 2613 | |
2627 | #ifndef NO_REGEX | | 2614 | #ifndef NO_REGEX |
2628 | /* :C,from,to, */ | | 2615 | /* :C,from,to, */ |
2629 | static Boolean | | 2616 | static Boolean |
2630 | ApplyModifier_Regex(ApplyModifiersState *st) | | 2617 | ApplyModifier_Regex(ApplyModifiersState *st) |
2631 | { | | 2618 | { |
2632 | VarREPattern pattern; | | 2619 | VarREPattern pattern; |
2633 | char *re; | | 2620 | char *re; |
2634 | int error; | | 2621 | int error; |
2635 | Var_Parse_State tmpparsestate; | | 2622 | Var_Parse_State tmpparsestate; |
2636 | | | 2623 | |
2637 | pattern.flags = 0; | | 2624 | pattern.flags = 0; |
2638 | tmpparsestate = st->parsestate; | | 2625 | tmpparsestate = st->parsestate; |
2639 | st->delim = st->tstr[1]; | | 2626 | st->delim = st->tstr[1]; |
2640 | st->tstr += 2; | | 2627 | st->tstr += 2; |
2641 | | | 2628 | |
2642 | st->cp = st->tstr; | | 2629 | st->cp = st->tstr; |
2643 | | | 2630 | |
2644 | re = VarGetPattern( | | 2631 | re = VarGetPattern( |
2645 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 2632 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
2646 | NULL, NULL, NULL); | | 2633 | NULL, NULL, NULL); |
2647 | if (re == NULL) | | 2634 | if (re == NULL) |
2648 | return FALSE; | | 2635 | return FALSE; |
2649 | | | 2636 | |
2650 | pattern.replace = VarGetPattern( | | 2637 | pattern.replace = VarGetPattern( |
2651 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 2638 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
2652 | NULL, NULL, NULL); | | 2639 | NULL, NULL, NULL); |
2653 | if (pattern.replace == NULL) { | | 2640 | if (pattern.replace == NULL) { |
2654 | free(re); | | 2641 | free(re); |
2655 | return FALSE; | | 2642 | return FALSE; |
2656 | } | | 2643 | } |
2657 | | | 2644 | |
2658 | for (;; st->cp++) { | | 2645 | for (;; st->cp++) { |
2659 | switch (*st->cp) { | | 2646 | switch (*st->cp) { |
2660 | case 'g': | | 2647 | case 'g': |
2661 | pattern.flags |= VAR_SUB_GLOBAL; | | 2648 | pattern.flags |= VAR_SUB_GLOBAL; |
2662 | continue; | | 2649 | continue; |
2663 | case '1': | | 2650 | case '1': |
2664 | pattern.flags |= VAR_SUB_ONE; | | 2651 | pattern.flags |= VAR_SUB_ONE; |
2665 | continue; | | 2652 | continue; |
2666 | case 'W': | | 2653 | case 'W': |
2667 | tmpparsestate.oneBigWord = TRUE; | | 2654 | tmpparsestate.oneBigWord = TRUE; |
2668 | continue; | | 2655 | continue; |
2669 | } | | 2656 | } |
2670 | break; | | 2657 | break; |
2671 | } | | 2658 | } |
2672 | | | 2659 | |
2673 | st->termc = *st->cp; | | 2660 | st->termc = *st->cp; |
2674 | | | 2661 | |
2675 | error = regcomp(&pattern.re, re, REG_EXTENDED); | | 2662 | error = regcomp(&pattern.re, re, REG_EXTENDED); |
2676 | free(re); | | 2663 | free(re); |
2677 | if (error) { | | 2664 | if (error) { |
2678 | *st->lengthPtr = st->cp - st->start + 1; | | 2665 | *st->lengthPtr = st->cp - st->start + 1; |
2679 | VarREError(error, &pattern.re, "RE substitution error"); | | 2666 | VarREError(error, &pattern.re, "RE substitution error"); |
2680 | free(pattern.replace); | | 2667 | free(pattern.replace); |
2681 | return FALSE; | | 2668 | return FALSE; |
2682 | } | | 2669 | } |
2683 | | | 2670 | |
2684 | pattern.nsub = pattern.re.re_nsub + 1; | | 2671 | pattern.nsub = pattern.re.re_nsub + 1; |
2685 | if (pattern.nsub < 1) | | 2672 | if (pattern.nsub < 1) |
2686 | pattern.nsub = 1; | | 2673 | pattern.nsub = 1; |
2687 | if (pattern.nsub > 10) | | 2674 | if (pattern.nsub > 10) |
2688 | pattern.nsub = 10; | | 2675 | pattern.nsub = 10; |
2689 | pattern.matches = bmake_malloc(pattern.nsub * sizeof(regmatch_t)); | | 2676 | pattern.matches = bmake_malloc(pattern.nsub * sizeof(regmatch_t)); |
2690 | st->newStr = VarModify( | | 2677 | st->newStr = VarModify( |
2691 | st->ctxt, &tmpparsestate, st->nstr, VarRESubstitute, &pattern); | | 2678 | st->ctxt, &tmpparsestate, st->nstr, VarRESubstitute, &pattern); |
2692 | regfree(&pattern.re); | | 2679 | regfree(&pattern.re); |
2693 | free(pattern.replace); | | 2680 | free(pattern.replace); |
2694 | free(pattern.matches); | | 2681 | free(pattern.matches); |
2695 | st->delim = '\0'; | | 2682 | st->delim = '\0'; |
2696 | return TRUE; | | 2683 | return TRUE; |
2697 | } | | 2684 | } |
2698 | #endif | | 2685 | #endif |
2699 | | | 2686 | |
2700 | /* :tA, :tu, :tl, etc. */ | | 2687 | /* :tA, :tu, :tl, etc. */ |
2701 | static Boolean | | 2688 | static Boolean |
2702 | ApplyModifier_To(ApplyModifiersState *st) | | 2689 | ApplyModifier_To(ApplyModifiersState *st) |
2703 | { | | 2690 | { |
2704 | st->cp = st->tstr + 1; /* make sure it is set */ | | 2691 | st->cp = st->tstr + 1; /* make sure it is set */ |
2705 | if (st->tstr[1] != st->endc && st->tstr[1] != ':') { | | 2692 | if (st->tstr[1] != st->endc && st->tstr[1] != ':') { |
2706 | if (st->tstr[1] == 's') { | | 2693 | if (st->tstr[1] == 's') { |
2707 | /* Use the char (if any) at st->tstr[2] as the word separator. */ | | 2694 | /* Use the char (if any) at st->tstr[2] as the word separator. */ |
2708 | VarPattern pattern; | | 2695 | VarPattern pattern; |
2709 | | | 2696 | |
2710 | if (st->tstr[2] != st->endc && | | 2697 | if (st->tstr[2] != st->endc && |
2711 | (st->tstr[3] == st->endc || st->tstr[3] == ':')) { | | 2698 | (st->tstr[3] == st->endc || st->tstr[3] == ':')) { |
2712 | /* ":ts<unrecognised><endc>" or | | 2699 | /* ":ts<unrecognised><endc>" or |
2713 | * ":ts<unrecognised>:" */ | | 2700 | * ":ts<unrecognised>:" */ |
2714 | st->parsestate.varSpace = st->tstr[2]; | | 2701 | st->parsestate.varSpace = st->tstr[2]; |
2715 | st->cp = st->tstr + 3; | | 2702 | st->cp = st->tstr + 3; |
2716 | } else if (st->tstr[2] == st->endc || st->tstr[2] == ':') { | | 2703 | } else if (st->tstr[2] == st->endc || st->tstr[2] == ':') { |
2717 | /* ":ts<endc>" or ":ts:" */ | | 2704 | /* ":ts<endc>" or ":ts:" */ |
2718 | st->parsestate.varSpace = 0; /* no separator */ | | 2705 | st->parsestate.varSpace = 0; /* no separator */ |
2719 | st->cp = st->tstr + 2; | | 2706 | st->cp = st->tstr + 2; |
2720 | } else if (st->tstr[2] == '\\') { | | 2707 | } else if (st->tstr[2] == '\\') { |
2721 | const char *xp = &st->tstr[3]; | | 2708 | const char *xp = &st->tstr[3]; |
2722 | int base = 8; /* assume octal */ | | 2709 | int base = 8; /* assume octal */ |
2723 | | | 2710 | |
2724 | switch (st->tstr[3]) { | | 2711 | switch (st->tstr[3]) { |
2725 | case 'n': | | 2712 | case 'n': |
2726 | st->parsestate.varSpace = '\n'; | | 2713 | st->parsestate.varSpace = '\n'; |
2727 | st->cp = st->tstr + 4; | | 2714 | st->cp = st->tstr + 4; |
2728 | break; | | 2715 | break; |
2729 | case 't': | | 2716 | case 't': |
2730 | st->parsestate.varSpace = '\t'; | | 2717 | st->parsestate.varSpace = '\t'; |
2731 | st->cp = st->tstr + 4; | | 2718 | st->cp = st->tstr + 4; |
2732 | break; | | 2719 | break; |
2733 | case 'x': | | 2720 | case 'x': |
2734 | base = 16; | | 2721 | base = 16; |
2735 | xp++; | | 2722 | xp++; |
2736 | goto get_numeric; | | 2723 | goto get_numeric; |
2737 | case '0': | | 2724 | case '0': |
2738 | base = 0; | | 2725 | base = 0; |
2739 | goto get_numeric; | | 2726 | goto get_numeric; |
2740 | default: | | 2727 | default: |
2741 | if (isdigit((unsigned char)st->tstr[3])) { | | 2728 | if (isdigit((unsigned char)st->tstr[3])) { |
2742 | char *ep; | | 2729 | char *ep; |
2743 | get_numeric: | | 2730 | get_numeric: |
2744 | st->parsestate.varSpace = strtoul(xp, &ep, base); | | 2731 | st->parsestate.varSpace = strtoul(xp, &ep, base); |
2745 | if (*ep != ':' && *ep != st->endc) | | 2732 | if (*ep != ':' && *ep != st->endc) |
2746 | return FALSE; | | 2733 | return FALSE; |
2747 | st->cp = ep; | | 2734 | st->cp = ep; |
2748 | } else { | | 2735 | } else { |
2749 | /* ":ts<backslash><unrecognised>". */ | | 2736 | /* ":ts<backslash><unrecognised>". */ |
2750 | return FALSE; | | 2737 | return FALSE; |
2751 | } | | 2738 | } |
2752 | break; | | 2739 | break; |
2753 | } | | 2740 | } |
2754 | } else { | | 2741 | } else { |
2755 | /* Found ":ts<unrecognised><unrecognised>". */ | | 2742 | /* Found ":ts<unrecognised><unrecognised>". */ |
2756 | return FALSE; | | 2743 | return FALSE; |
2757 | } | | 2744 | } |
2758 | | | 2745 | |
2759 | st->termc = *st->cp; | | 2746 | st->termc = *st->cp; |
2760 | | | 2747 | |
2761 | /* | | 2748 | /* |
2762 | * We cannot be certain that VarModify will be used - even if there | | 2749 | * We cannot be certain that VarModify will be used - even if there |
2763 | * is a subsequent modifier, so do a no-op VarSubstitute now to for | | 2750 | * is a subsequent modifier, so do a no-op VarSubstitute now to for |
2764 | * str to be re-expanded without the spaces. | | 2751 | * str to be re-expanded without the spaces. |
2765 | */ | | 2752 | */ |
2766 | pattern.flags = VAR_SUB_ONE; | | 2753 | pattern.flags = VAR_SUB_ONE; |
2767 | pattern.lhs = pattern.rhs = "\032"; | | 2754 | pattern.lhs = pattern.rhs = "\032"; |
2768 | pattern.leftLen = pattern.rightLen = 1; | | 2755 | pattern.leftLen = pattern.rightLen = 1; |
2769 | | | 2756 | |
2770 | st->newStr = VarModify( | | 2757 | st->newStr = VarModify( |
2771 | st->ctxt, &st->parsestate, st->nstr, VarSubstitute, &pattern); | | 2758 | st->ctxt, &st->parsestate, st->nstr, VarSubstitute, &pattern); |
2772 | } else if (st->tstr[2] == st->endc || st->tstr[2] == ':') { | | 2759 | } else if (st->tstr[2] == st->endc || st->tstr[2] == ':') { |
2773 | /* Check for two-character options: ":tu", ":tl" */ | | 2760 | /* Check for two-character options: ":tu", ":tl" */ |
2774 | if (st->tstr[1] == 'A') { /* absolute path */ | | 2761 | if (st->tstr[1] == 'A') { /* absolute path */ |
2775 | st->newStr = VarModify( | | 2762 | st->newStr = VarModify( |
2776 | st->ctxt, &st->parsestate, st->nstr, VarRealpath, NULL); | | 2763 | st->ctxt, &st->parsestate, st->nstr, VarRealpath, NULL); |
2777 | st->cp = st->tstr + 2; | | 2764 | st->cp = st->tstr + 2; |
2778 | st->termc = *st->cp; | | 2765 | st->termc = *st->cp; |
2779 | } else if (st->tstr[1] == 'u') { | | 2766 | } else if (st->tstr[1] == 'u') { |
2780 | char *dp = bmake_strdup(st->nstr); | | 2767 | char *dp = bmake_strdup(st->nstr); |
2781 | for (st->newStr = dp; *dp; dp++) | | 2768 | for (st->newStr = dp; *dp; dp++) |
2782 | *dp = toupper((unsigned char)*dp); | | 2769 | *dp = toupper((unsigned char)*dp); |
2783 | st->cp = st->tstr + 2; | | 2770 | st->cp = st->tstr + 2; |
2784 | st->termc = *st->cp; | | 2771 | st->termc = *st->cp; |
2785 | } else if (st->tstr[1] == 'l') { | | 2772 | } else if (st->tstr[1] == 'l') { |
2786 | char *dp = bmake_strdup(st->nstr); | | 2773 | char *dp = bmake_strdup(st->nstr); |
2787 | for (st->newStr = dp; *dp; dp++) | | 2774 | for (st->newStr = dp; *dp; dp++) |
2788 | *dp = tolower((unsigned char)*dp); | | 2775 | *dp = tolower((unsigned char)*dp); |
2789 | st->cp = st->tstr + 2; | | 2776 | st->cp = st->tstr + 2; |
2790 | st->termc = *st->cp; | | 2777 | st->termc = *st->cp; |
2791 | } else if (st->tstr[1] == 'W' || st->tstr[1] == 'w') { | | 2778 | } else if (st->tstr[1] == 'W' || st->tstr[1] == 'w') { |
2792 | st->parsestate.oneBigWord = (st->tstr[1] == 'W'); | | 2779 | st->parsestate.oneBigWord = (st->tstr[1] == 'W'); |
2793 | st->newStr = st->nstr; | | 2780 | st->newStr = st->nstr; |
2794 | st->cp = st->tstr + 2; | | 2781 | st->cp = st->tstr + 2; |
2795 | st->termc = *st->cp; | | 2782 | st->termc = *st->cp; |
2796 | } else { | | 2783 | } else { |
2797 | /* Found ":t<unrecognised>:" or ":t<unrecognised><endc>". */ | | 2784 | /* Found ":t<unrecognised>:" or ":t<unrecognised><endc>". */ |
2798 | return FALSE; | | 2785 | return FALSE; |
2799 | } | | 2786 | } |
2800 | } else { | | 2787 | } else { |
2801 | /* Found ":t<unrecognised><unrecognised>". */ | | 2788 | /* Found ":t<unrecognised><unrecognised>". */ |
2802 | return FALSE; | | 2789 | return FALSE; |
2803 | } | | 2790 | } |
2804 | } else { | | 2791 | } else { |
2805 | /* Found ":t<endc>" or ":t:". */ | | 2792 | /* Found ":t<endc>" or ":t:". */ |
2806 | return FALSE; | | 2793 | return FALSE; |
2807 | } | | 2794 | } |
2808 | return TRUE; | | 2795 | return TRUE; |
2809 | } | | 2796 | } |
2810 | | | 2797 | |
2811 | /* :[#], :[1], etc. */ | | 2798 | /* :[#], :[1], etc. */ |
2812 | static int | | 2799 | static int |
2813 | ApplyModifier_Words(ApplyModifiersState *st) | | 2800 | ApplyModifier_Words(ApplyModifiersState *st) |
2814 | { | | 2801 | { |
2815 | /* | | 2802 | /* |
2816 | * Look for the closing ']', recursively | | 2803 | * Look for the closing ']', recursively |
2817 | * expanding any embedded variables. | | 2804 | * expanding any embedded variables. |
2818 | * | | 2805 | * |
2819 | * estr is a pointer to the expanded result, | | 2806 | * estr is a pointer to the expanded result, |
2820 | * which we must free(). | | 2807 | * which we must free(). |
2821 | */ | | 2808 | */ |
2822 | char *estr; | | 2809 | char *estr; |
2823 | | | 2810 | |
2824 | st->cp = st->tstr + 1; /* point to char after '[' */ | | 2811 | st->cp = st->tstr + 1; /* point to char after '[' */ |
2825 | st->delim = ']'; /* look for closing ']' */ | | 2812 | st->delim = ']'; /* look for closing ']' */ |
2826 | estr = VarGetPattern( | | 2813 | estr = VarGetPattern( |
2827 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 2814 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
2828 | NULL, NULL, NULL); | | 2815 | NULL, NULL, NULL); |
2829 | if (estr == NULL) | | 2816 | if (estr == NULL) |
2830 | return 'c'; /* report missing ']' */ | | 2817 | return 'c'; /* report missing ']' */ |
2831 | /* now st->cp points just after the closing ']' */ | | 2818 | /* now st->cp points just after the closing ']' */ |
2832 | st->delim = '\0'; | | 2819 | st->delim = '\0'; |
2833 | if (st->cp[0] != ':' && st->cp[0] != st->endc) { | | 2820 | if (st->cp[0] != ':' && st->cp[0] != st->endc) { |
2834 | /* Found junk after ']' */ | | 2821 | /* Found junk after ']' */ |
2835 | free(estr); | | 2822 | free(estr); |
2836 | return 'b'; | | 2823 | return 'b'; |
2837 | } | | 2824 | } |
2838 | if (estr[0] == '\0') { | | 2825 | if (estr[0] == '\0') { |
2839 | /* Found empty square brackets in ":[]". */ | | 2826 | /* Found empty square brackets in ":[]". */ |
2840 | free(estr); | | 2827 | free(estr); |
2841 | return 'b'; | | 2828 | return 'b'; |
2842 | } else if (estr[0] == '#' && estr[1] == '\0') { | | 2829 | } else if (estr[0] == '#' && estr[1] == '\0') { |
2843 | /* Found ":[#]" */ | | 2830 | /* Found ":[#]" */ |
2844 | | | 2831 | |
2845 | /* | | 2832 | /* |
2846 | * We will need enough space for the decimal | | 2833 | * We will need enough space for the decimal |
2847 | * representation of an int. We calculate the | | 2834 | * representation of an int. We calculate the |
2848 | * space needed for the octal representation, | | 2835 | * space needed for the octal representation, |
2849 | * and add enough slop to cope with a '-' sign | | 2836 | * and add enough slop to cope with a '-' sign |
2850 | * (which should never be needed) and a '\0' | | 2837 | * (which should never be needed) and a '\0' |
2851 | * string terminator. | | 2838 | * string terminator. |
2852 | */ | | 2839 | */ |
2853 | int newStrSize = (sizeof(int) * CHAR_BIT + 2) / 3 + 2; | | 2840 | int newStrSize = (sizeof(int) * CHAR_BIT + 2) / 3 + 2; |
2854 | | | 2841 | |
2855 | st->newStr = bmake_malloc(newStrSize); | | 2842 | st->newStr = bmake_malloc(newStrSize); |
2856 | if (st->parsestate.oneBigWord) { | | 2843 | if (st->parsestate.oneBigWord) { |
2857 | strncpy(st->newStr, "1", newStrSize); | | 2844 | strncpy(st->newStr, "1", newStrSize); |
2858 | } else { | | 2845 | } else { |
2859 | /* XXX: brk_string() is a rather expensive | | 2846 | /* XXX: brk_string() is a rather expensive |
2860 | * way of counting words. */ | | 2847 | * way of counting words. */ |
2861 | char **av; | | 2848 | char **av; |
2862 | char *as; | | 2849 | char *as; |
2863 | int ac; | | 2850 | int ac; |
2864 | | | 2851 | |
2865 | av = brk_string(st->nstr, &ac, FALSE, &as); | | 2852 | av = brk_string(st->nstr, &ac, FALSE, &as); |
2866 | snprintf(st->newStr, newStrSize, "%d", ac); | | 2853 | snprintf(st->newStr, newStrSize, "%d", ac); |
2867 | free(as); | | 2854 | free(as); |
2868 | free(av); | | 2855 | free(av); |
2869 | } | | 2856 | } |
2870 | st->termc = *st->cp; | | 2857 | st->termc = *st->cp; |
2871 | free(estr); | | 2858 | free(estr); |
2872 | return 0; | | 2859 | return 0; |
2873 | } else if (estr[0] == '*' && estr[1] == '\0') { | | 2860 | } else if (estr[0] == '*' && estr[1] == '\0') { |
2874 | /* Found ":[*]" */ | | 2861 | /* Found ":[*]" */ |
2875 | st->parsestate.oneBigWord = TRUE; | | 2862 | st->parsestate.oneBigWord = TRUE; |
2876 | st->newStr = st->nstr; | | 2863 | st->newStr = st->nstr; |
2877 | st->termc = *st->cp; | | 2864 | st->termc = *st->cp; |
2878 | free(estr); | | 2865 | free(estr); |
2879 | return 0; | | 2866 | return 0; |
2880 | } else if (estr[0] == '@' && estr[1] == '\0') { | | 2867 | } else if (estr[0] == '@' && estr[1] == '\0') { |
2881 | /* Found ":[@]" */ | | 2868 | /* Found ":[@]" */ |
2882 | st->parsestate.oneBigWord = FALSE; | | 2869 | st->parsestate.oneBigWord = FALSE; |
2883 | st->newStr = st->nstr; | | 2870 | st->newStr = st->nstr; |
2884 | st->termc = *st->cp; | | 2871 | st->termc = *st->cp; |
2885 | free(estr); | | 2872 | free(estr); |
2886 | return 0; | | 2873 | return 0; |
2887 | } else { | | 2874 | } else { |
2888 | char *ep; | | 2875 | char *ep; |
2889 | /* | | 2876 | /* |
2890 | * We expect estr to contain a single | | 2877 | * We expect estr to contain a single |
2891 | * integer for :[N], or two integers | | 2878 | * integer for :[N], or two integers |
2892 | * separated by ".." for :[start..end]. | | 2879 | * separated by ".." for :[start..end]. |
2893 | */ | | 2880 | */ |
2894 | VarSelectWords_t seldata = { 0, 0 }; | | 2881 | VarSelectWords_t seldata = { 0, 0 }; |
2895 | | | 2882 | |
2896 | seldata.start = strtol(estr, &ep, 0); | | 2883 | seldata.start = strtol(estr, &ep, 0); |
2897 | if (ep == estr) { | | 2884 | if (ep == estr) { |
2898 | /* Found junk instead of a number */ | | 2885 | /* Found junk instead of a number */ |
2899 | free(estr); | | 2886 | free(estr); |
2900 | return 'b'; | | 2887 | return 'b'; |
2901 | } else if (ep[0] == '\0') { | | 2888 | } else if (ep[0] == '\0') { |
2902 | /* Found only one integer in :[N] */ | | 2889 | /* Found only one integer in :[N] */ |
2903 | seldata.end = seldata.start; | | 2890 | seldata.end = seldata.start; |
2904 | } else if (ep[0] == '.' && ep[1] == '.' && ep[2] != '\0') { | | 2891 | } else if (ep[0] == '.' && ep[1] == '.' && ep[2] != '\0') { |
2905 | /* Expecting another integer after ".." */ | | 2892 | /* Expecting another integer after ".." */ |
2906 | ep += 2; | | 2893 | ep += 2; |
2907 | seldata.end = strtol(ep, &ep, 0); | | 2894 | seldata.end = strtol(ep, &ep, 0); |
2908 | if (ep[0] != '\0') { | | 2895 | if (ep[0] != '\0') { |
2909 | /* Found junk after ".." */ | | 2896 | /* Found junk after ".." */ |
2910 | free(estr); | | 2897 | free(estr); |
2911 | return 'b'; | | 2898 | return 'b'; |
2912 | } | | 2899 | } |
2913 | } else { | | 2900 | } else { |
2914 | /* Found junk instead of ".." */ | | 2901 | /* Found junk instead of ".." */ |
2915 | free(estr); | | 2902 | free(estr); |
2916 | return 'b'; | | 2903 | return 'b'; |
2917 | } | | 2904 | } |
2918 | /* | | 2905 | /* |
2919 | * Now seldata is properly filled in, | | 2906 | * Now seldata is properly filled in, |
2920 | * but we still have to check for 0 as | | 2907 | * but we still have to check for 0 as |
2921 | * a special case. | | 2908 | * a special case. |
2922 | */ | | 2909 | */ |
2923 | if (seldata.start == 0 && seldata.end == 0) { | | 2910 | if (seldata.start == 0 && seldata.end == 0) { |
2924 | /* ":[0]" or perhaps ":[0..0]" */ | | 2911 | /* ":[0]" or perhaps ":[0..0]" */ |
2925 | st->parsestate.oneBigWord = TRUE; | | 2912 | st->parsestate.oneBigWord = TRUE; |
2926 | st->newStr = st->nstr; | | 2913 | st->newStr = st->nstr; |
2927 | st->termc = *st->cp; | | 2914 | st->termc = *st->cp; |
2928 | free(estr); | | 2915 | free(estr); |
2929 | return 0; | | 2916 | return 0; |
2930 | } else if (seldata.start == 0 || seldata.end == 0) { | | 2917 | } else if (seldata.start == 0 || seldata.end == 0) { |
2931 | /* ":[0..N]" or ":[N..0]" */ | | 2918 | /* ":[0..N]" or ":[N..0]" */ |
2932 | free(estr); | | 2919 | free(estr); |
2933 | return 'b'; | | 2920 | return 'b'; |
2934 | } | | 2921 | } |
2935 | /* Normal case: select the words described by seldata. */ | | 2922 | /* Normal case: select the words described by seldata. */ |
2936 | st->newStr = VarSelectWords( | | 2923 | st->newStr = VarSelectWords( |
2937 | st->ctxt, &st->parsestate, st->nstr, &seldata); | | 2924 | st->ctxt, &st->parsestate, st->nstr, &seldata); |
2938 | | | 2925 | |
2939 | st->termc = *st->cp; | | 2926 | st->termc = *st->cp; |
2940 | free(estr); | | 2927 | free(estr); |
2941 | return 0; | | 2928 | return 0; |
2942 | } | | 2929 | } |
2943 | } | | 2930 | } |
2944 | | | 2931 | |
2945 | /* :O or :Ox */ | | 2932 | /* :O or :Ox */ |
2946 | static Boolean | | 2933 | static Boolean |
2947 | ApplyModifier_Order(ApplyModifiersState *st) | | 2934 | ApplyModifier_Order(ApplyModifiersState *st) |
2948 | { | | 2935 | { |
2949 | char otype; | | 2936 | char otype; |
2950 | | | 2937 | |
2951 | st->cp = st->tstr + 1; /* skip to the rest in any case */ | | 2938 | st->cp = st->tstr + 1; /* skip to the rest in any case */ |
2952 | if (st->tstr[1] == st->endc || st->tstr[1] == ':') { | | 2939 | if (st->tstr[1] == st->endc || st->tstr[1] == ':') { |
2953 | otype = 's'; | | 2940 | otype = 's'; |
2954 | st->termc = *st->cp; | | 2941 | st->termc = *st->cp; |
2955 | } else if ((st->tstr[1] == 'r' || st->tstr[1] == 'x') && | | 2942 | } else if ((st->tstr[1] == 'r' || st->tstr[1] == 'x') && |
2956 | (st->tstr[2] == st->endc || st->tstr[2] == ':')) { | | 2943 | (st->tstr[2] == st->endc || st->tstr[2] == ':')) { |
2957 | otype = st->tstr[1]; | | 2944 | otype = st->tstr[1]; |
2958 | st->cp = st->tstr + 2; | | 2945 | st->cp = st->tstr + 2; |
2959 | st->termc = *st->cp; | | 2946 | st->termc = *st->cp; |
2960 | } else { | | 2947 | } else { |
2961 | return FALSE; | | 2948 | return FALSE; |
2962 | } | | 2949 | } |
2963 | st->newStr = VarOrder(st->nstr, otype); | | 2950 | st->newStr = VarOrder(st->nstr, otype); |
2964 | return TRUE; | | 2951 | return TRUE; |
2965 | } | | 2952 | } |
2966 | | | 2953 | |
2967 | /* :? then : else */ | | 2954 | /* :? then : else */ |
2968 | static Boolean | | 2955 | static Boolean |
2969 | ApplyModifier_IfElse(ApplyModifiersState *st) | | 2956 | ApplyModifier_IfElse(ApplyModifiersState *st) |
2970 | { | | 2957 | { |
2971 | VarPattern pattern; | | 2958 | VarPattern pattern; |
2972 | Boolean value; | | 2959 | Boolean value; |
2973 | int cond_rc; | | 2960 | int cond_rc; |
2974 | VarPattern_Flags lhs_flags, rhs_flags; | | 2961 | VarPattern_Flags lhs_flags, rhs_flags; |
2975 | | | 2962 | |
2976 | /* find ':', and then substitute accordingly */ | | 2963 | /* find ':', and then substitute accordingly */ |
2977 | if (st->flags & VARF_WANTRES) { | | 2964 | if (st->flags & VARF_WANTRES) { |
2978 | cond_rc = Cond_EvalExpression(NULL, st->v->name, &value, 0, FALSE); | | 2965 | cond_rc = Cond_EvalExpression(NULL, st->v->name, &value, 0, FALSE); |
2979 | if (cond_rc == COND_INVALID) { | | 2966 | if (cond_rc == COND_INVALID) { |
2980 | lhs_flags = rhs_flags = VAR_NOSUBST; | | 2967 | lhs_flags = rhs_flags = VAR_NOSUBST; |
2981 | } else if (value) { | | 2968 | } else if (value) { |
2982 | lhs_flags = 0; | | 2969 | lhs_flags = 0; |
2983 | rhs_flags = VAR_NOSUBST; | | 2970 | rhs_flags = VAR_NOSUBST; |
2984 | } else { | | 2971 | } else { |
2985 | lhs_flags = VAR_NOSUBST; | | 2972 | lhs_flags = VAR_NOSUBST; |
2986 | rhs_flags = 0; | | 2973 | rhs_flags = 0; |
2987 | } | | 2974 | } |
2988 | } else { | | 2975 | } else { |
2989 | /* we are just consuming and discarding */ | | 2976 | /* we are just consuming and discarding */ |
2990 | cond_rc = value = 0; | | 2977 | cond_rc = value = 0; |
2991 | lhs_flags = rhs_flags = VAR_NOSUBST; | | 2978 | lhs_flags = rhs_flags = VAR_NOSUBST; |
2992 | } | | 2979 | } |
2993 | pattern.flags = 0; | | 2980 | pattern.flags = 0; |
2994 | | | 2981 | |
2995 | st->cp = ++st->tstr; | | 2982 | st->cp = ++st->tstr; |
2996 | st->delim = ':'; | | 2983 | st->delim = ':'; |
2997 | pattern.lhs = VarGetPattern( | | 2984 | pattern.lhs = VarGetPattern( |
2998 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 2985 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
2999 | &lhs_flags, &pattern.leftLen, NULL); | | 2986 | &lhs_flags, &pattern.leftLen, NULL); |
3000 | if (pattern.lhs == NULL) | | 2987 | if (pattern.lhs == NULL) |
3001 | return FALSE; | | 2988 | return FALSE; |
3002 | | | 2989 | |
3003 | /* BROPEN or PROPEN */ | | 2990 | /* BROPEN or PROPEN */ |
3004 | st->delim = st->endc; | | 2991 | st->delim = st->endc; |
3005 | pattern.rhs = VarGetPattern( | | 2992 | pattern.rhs = VarGetPattern( |
3006 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 2993 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
3007 | &rhs_flags, &pattern.rightLen, NULL); | | 2994 | &rhs_flags, &pattern.rightLen, NULL); |
3008 | if (pattern.rhs == NULL) | | 2995 | if (pattern.rhs == NULL) |
3009 | return FALSE; | | 2996 | return FALSE; |
3010 | | | 2997 | |
3011 | st->termc = *--st->cp; | | 2998 | st->termc = *--st->cp; |
3012 | st->delim = '\0'; | | 2999 | st->delim = '\0'; |
3013 | if (cond_rc == COND_INVALID) { | | 3000 | if (cond_rc == COND_INVALID) { |
3014 | Error("Bad conditional expression `%s' in %s?%s:%s", | | 3001 | Error("Bad conditional expression `%s' in %s?%s:%s", |
3015 | st->v->name, st->v->name, pattern.lhs, pattern.rhs); | | 3002 | st->v->name, st->v->name, pattern.lhs, pattern.rhs); |
3016 | return FALSE; | | 3003 | return FALSE; |
3017 | } | | 3004 | } |
3018 | | | 3005 | |
3019 | if (value) { | | 3006 | if (value) { |
3020 | st->newStr = UNCONST(pattern.lhs); | | 3007 | st->newStr = UNCONST(pattern.lhs); |
3021 | free(UNCONST(pattern.rhs)); | | 3008 | free(UNCONST(pattern.rhs)); |
3022 | } else { | | 3009 | } else { |
3023 | st->newStr = UNCONST(pattern.rhs); | | 3010 | st->newStr = UNCONST(pattern.rhs); |
3024 | free(UNCONST(pattern.lhs)); | | 3011 | free(UNCONST(pattern.lhs)); |
3025 | } | | 3012 | } |
3026 | if (st->v->flags & VAR_JUNK) | | 3013 | if (st->v->flags & VAR_JUNK) |
3027 | st->v->flags |= VAR_KEEP; | | 3014 | st->v->flags |= VAR_KEEP; |
3028 | return TRUE; | | 3015 | return TRUE; |
3029 | } | | 3016 | } |
3030 | | | 3017 | |
3031 | /* "::=", "::!=", "::+=", or "::?=" */ | | 3018 | /* "::=", "::!=", "::+=", or "::?=" */ |
3032 | static int | | 3019 | static int |
3033 | ApplyModifier_Assign(ApplyModifiersState *st) | | 3020 | ApplyModifier_Assign(ApplyModifiersState *st) |
3034 | { | | 3021 | { |
3035 | if (st->tstr[1] == '=' || | | 3022 | if (st->tstr[1] == '=' || |
3036 | (st->tstr[2] == '=' && | | 3023 | (st->tstr[2] == '=' && |
3037 | (st->tstr[1] == '!' || st->tstr[1] == '+' || st->tstr[1] == '?'))) { | | 3024 | (st->tstr[1] == '!' || st->tstr[1] == '+' || st->tstr[1] == '?'))) { |
3038 | GNode *v_ctxt; /* context where v belongs */ | | 3025 | GNode *v_ctxt; /* context where v belongs */ |
3039 | const char *emsg; | | 3026 | const char *emsg; |
3040 | char *sv_name; | | 3027 | char *sv_name; |
3041 | VarPattern pattern; | | 3028 | VarPattern pattern; |
3042 | int how; | | 3029 | int how; |
3043 | VarPattern_Flags vflags; | | 3030 | VarPattern_Flags vflags; |
3044 | | | 3031 | |
3045 | if (st->v->name[0] == 0) | | 3032 | if (st->v->name[0] == 0) |
3046 | return 'b'; | | 3033 | return 'b'; |
3047 | | | 3034 | |
3048 | v_ctxt = st->ctxt; | | 3035 | v_ctxt = st->ctxt; |
3049 | sv_name = NULL; | | 3036 | sv_name = NULL; |
3050 | ++st->tstr; | | 3037 | ++st->tstr; |
3051 | if (st->v->flags & VAR_JUNK) { | | 3038 | if (st->v->flags & VAR_JUNK) { |
3052 | /* | | 3039 | /* |
3053 | * We need to bmake_strdup() it incase | | 3040 | * We need to bmake_strdup() it incase |
3054 | * VarGetPattern() recurses. | | 3041 | * VarGetPattern() recurses. |
3055 | */ | | 3042 | */ |
3056 | sv_name = st->v->name; | | 3043 | sv_name = st->v->name; |
3057 | st->v->name = bmake_strdup(st->v->name); | | 3044 | st->v->name = bmake_strdup(st->v->name); |
3058 | } else if (st->ctxt != VAR_GLOBAL) { | | 3045 | } else if (st->ctxt != VAR_GLOBAL) { |
3059 | Var *gv = VarFind(st->v->name, st->ctxt, 0); | | 3046 | Var *gv = VarFind(st->v->name, st->ctxt, 0); |
3060 | if (gv == NULL) | | 3047 | if (gv == NULL) |
3061 | v_ctxt = VAR_GLOBAL; | | 3048 | v_ctxt = VAR_GLOBAL; |
3062 | else | | 3049 | else |
3063 | VarFreeEnv(gv, TRUE); | | 3050 | VarFreeEnv(gv, TRUE); |
3064 | } | | 3051 | } |
3065 | | | 3052 | |
3066 | switch ((how = *st->tstr)) { | | 3053 | switch ((how = *st->tstr)) { |
3067 | case '+': | | 3054 | case '+': |
3068 | case '?': | | 3055 | case '?': |
3069 | case '!': | | 3056 | case '!': |
3070 | st->cp = &st->tstr[2]; | | 3057 | st->cp = &st->tstr[2]; |
3071 | break; | | 3058 | break; |
3072 | default: | | 3059 | default: |
3073 | st->cp = ++st->tstr; | | 3060 | st->cp = ++st->tstr; |
3074 | break; | | 3061 | break; |
3075 | } | | 3062 | } |
3076 | st->delim = st->startc == PROPEN ? PRCLOSE : BRCLOSE; | | 3063 | st->delim = st->startc == PROPEN ? PRCLOSE : BRCLOSE; |
3077 | pattern.flags = 0; | | 3064 | pattern.flags = 0; |
3078 | | | 3065 | |
3079 | vflags = (st->flags & VARF_WANTRES) ? 0 : VAR_NOSUBST; | | 3066 | vflags = (st->flags & VARF_WANTRES) ? 0 : VAR_NOSUBST; |
3080 | pattern.rhs = VarGetPattern( | | 3067 | pattern.rhs = VarGetPattern( |
3081 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 3068 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
3082 | &vflags, &pattern.rightLen, NULL); | | 3069 | &vflags, &pattern.rightLen, NULL); |
3083 | if (st->v->flags & VAR_JUNK) { | | 3070 | if (st->v->flags & VAR_JUNK) { |
3084 | /* restore original name */ | | 3071 | /* restore original name */ |
3085 | free(st->v->name); | | 3072 | free(st->v->name); |
3086 | st->v->name = sv_name; | | 3073 | st->v->name = sv_name; |
3087 | } | | 3074 | } |
3088 | if (pattern.rhs == NULL) | | 3075 | if (pattern.rhs == NULL) |
3089 | return 'c'; | | 3076 | return 'c'; |
3090 | | | 3077 | |
3091 | st->termc = *--st->cp; | | 3078 | st->termc = *--st->cp; |
3092 | st->delim = '\0'; | | 3079 | st->delim = '\0'; |
3093 | | | 3080 | |
3094 | if (st->flags & VARF_WANTRES) { | | 3081 | if (st->flags & VARF_WANTRES) { |
3095 | switch (how) { | | 3082 | switch (how) { |
3096 | case '+': | | 3083 | case '+': |
3097 | Var_Append(st->v->name, pattern.rhs, v_ctxt); | | 3084 | Var_Append(st->v->name, pattern.rhs, v_ctxt); |
3098 | break; | | 3085 | break; |
3099 | case '!': | | 3086 | case '!': |
3100 | st->newStr = Cmd_Exec(pattern.rhs, &emsg); | | 3087 | st->newStr = Cmd_Exec(pattern.rhs, &emsg); |
3101 | if (emsg) | | 3088 | if (emsg) |
3102 | Error(emsg, st->nstr); | | 3089 | Error(emsg, st->nstr); |
3103 | else | | 3090 | else |
3104 | Var_Set(st->v->name, st->newStr, v_ctxt); | | 3091 | Var_Set(st->v->name, st->newStr, v_ctxt); |
3105 | free(st->newStr); | | 3092 | free(st->newStr); |
3106 | break; | | 3093 | break; |
3107 | case '?': | | 3094 | case '?': |
3108 | if ((st->v->flags & VAR_JUNK) == 0) | | 3095 | if ((st->v->flags & VAR_JUNK) == 0) |
3109 | break; | | 3096 | break; |
3110 | /* FALLTHROUGH */ | | 3097 | /* FALLTHROUGH */ |
3111 | default: | | 3098 | default: |
3112 | Var_Set(st->v->name, pattern.rhs, v_ctxt); | | 3099 | Var_Set(st->v->name, pattern.rhs, v_ctxt); |
3113 | break; | | 3100 | break; |
3114 | } | | 3101 | } |
3115 | } | | 3102 | } |
3116 | free(UNCONST(pattern.rhs)); | | 3103 | free(UNCONST(pattern.rhs)); |
3117 | st->newStr = varNoError; | | 3104 | st->newStr = varNoError; |
3118 | return 0; | | 3105 | return 0; |
3119 | } | | 3106 | } |
3120 | return 'd'; /* "::<unrecognised>" */ | | 3107 | return 'd'; /* "::<unrecognised>" */ |
3121 | } | | 3108 | } |
3122 | | | 3109 | |
3123 | /* remember current value */ | | 3110 | /* remember current value */ |
3124 | static Boolean | | 3111 | static Boolean |
3125 | ApplyModifier_Remember(ApplyModifiersState *st) | | 3112 | ApplyModifier_Remember(ApplyModifiersState *st) |
3126 | { | | 3113 | { |
3127 | st->cp = st->tstr + 1; /* make sure it is set */ | | 3114 | st->cp = st->tstr + 1; /* make sure it is set */ |
3128 | if (!STRMOD_MATCHX(st->tstr, "_", 1)) | | 3115 | if (!STRMOD_MATCHX(st->tstr, "_", 1)) |
3129 | return FALSE; | | 3116 | return FALSE; |
3130 | | | 3117 | |
3131 | if (st->tstr[1] == '=') { | | 3118 | if (st->tstr[1] == '=') { |
3132 | char *np; | | 3119 | char *np; |
3133 | int n; | | 3120 | int n; |
3134 | | | 3121 | |
3135 | st->cp++; | | 3122 | st->cp++; |
3136 | n = strcspn(st->cp, ":)}"); | | 3123 | n = strcspn(st->cp, ":)}"); |
3137 | np = bmake_strndup(st->cp, n+1); | | 3124 | np = bmake_strndup(st->cp, n + 1); |
3138 | np[n] = '\0'; | | 3125 | np[n] = '\0'; |
3139 | st->cp = st->tstr + 2 + n; | | 3126 | st->cp = st->tstr + 2 + n; |
3140 | Var_Set(np, st->nstr, st->ctxt); | | 3127 | Var_Set(np, st->nstr, st->ctxt); |
3141 | free(np); | | 3128 | free(np); |
3142 | } else { | | 3129 | } else { |
3143 | Var_Set("_", st->nstr, st->ctxt); | | 3130 | Var_Set("_", st->nstr, st->ctxt); |
3144 | } | | 3131 | } |
3145 | st->newStr = st->nstr; | | 3132 | st->newStr = st->nstr; |
3146 | st->termc = *st->cp; | | 3133 | st->termc = *st->cp; |
3147 | return TRUE; | | 3134 | return TRUE; |
3148 | } | | 3135 | } |
3149 | | | 3136 | |
3150 | #ifdef SYSVVARSUB | | 3137 | #ifdef SYSVVARSUB |
3151 | /* :from=to */ | | 3138 | /* :from=to */ |
3152 | static int | | 3139 | static int |
3153 | ApplyModifier_SysV(ApplyModifiersState *st) | | 3140 | ApplyModifier_SysV(ApplyModifiersState *st) |
3154 | { | | 3141 | { |
3155 | /* | | 3142 | /* |
3156 | * This can either be a bogus modifier or a System-V | | 3143 | * This can either be a bogus modifier or a System-V |
3157 | * substitution command. | | 3144 | * substitution command. |
3158 | */ | | 3145 | */ |
3159 | VarPattern pattern; | | 3146 | VarPattern pattern; |
3160 | Boolean eqFound = FALSE; | | 3147 | Boolean eqFound = FALSE; |
3161 | | | 3148 | |
3162 | pattern.flags = 0; | | 3149 | pattern.flags = 0; |
3163 | | | 3150 | |
3164 | /* | | 3151 | /* |
3165 | * First we make a pass through the string trying | | 3152 | * First we make a pass through the string trying |
3166 | * to verify it is a SYSV-make-style translation: | | 3153 | * to verify it is a SYSV-make-style translation: |
3167 | * it must be: <string1>=<string2>) | | 3154 | * it must be: <string1>=<string2>) |
3168 | */ | | 3155 | */ |
3169 | st->cp = st->tstr; | | 3156 | st->cp = st->tstr; |
3170 | st->cnt = 1; | | 3157 | st->cnt = 1; |
3171 | while (*st->cp != '\0' && st->cnt) { | | 3158 | while (*st->cp != '\0' && st->cnt) { |
3172 | if (*st->cp == '=') { | | 3159 | if (*st->cp == '=') { |
3173 | eqFound = TRUE; | | 3160 | eqFound = TRUE; |
3174 | /* continue looking for st->endc */ | | 3161 | /* continue looking for st->endc */ |
3175 | } else if (*st->cp == st->endc) | | 3162 | } else if (*st->cp == st->endc) |
3176 | st->cnt--; | | 3163 | st->cnt--; |
3177 | else if (*st->cp == st->startc) | | 3164 | else if (*st->cp == st->startc) |
3178 | st->cnt++; | | 3165 | st->cnt++; |
3179 | if (st->cnt) | | 3166 | if (st->cnt) |
3180 | st->cp++; | | 3167 | st->cp++; |
3181 | } | | 3168 | } |
3182 | if (*st->cp != st->endc || !eqFound) | | 3169 | if (*st->cp != st->endc || !eqFound) |
3183 | return 0; | | 3170 | return 0; |
3184 | | | 3171 | |
3185 | st->delim = '='; | | 3172 | st->delim = '='; |
3186 | st->cp = st->tstr; | | 3173 | st->cp = st->tstr; |
3187 | pattern.lhs = VarGetPattern( | | 3174 | pattern.lhs = VarGetPattern( |
3188 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 3175 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
3189 | &pattern.flags, &pattern.leftLen, NULL); | | 3176 | &pattern.flags, &pattern.leftLen, NULL); |
3190 | if (pattern.lhs == NULL) | | 3177 | if (pattern.lhs == NULL) |
3191 | return 'c'; | | 3178 | return 'c'; |
3192 | | | 3179 | |
3193 | st->delim = st->endc; | | 3180 | st->delim = st->endc; |
3194 | pattern.rhs = VarGetPattern( | | 3181 | pattern.rhs = VarGetPattern( |
3195 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, | | 3182 | st->ctxt, &st->parsestate, st->flags, &st->cp, st->delim, |
3196 | NULL, &pattern.rightLen, &pattern); | | 3183 | NULL, &pattern.rightLen, &pattern); |
3197 | if (pattern.rhs == NULL) | | 3184 | if (pattern.rhs == NULL) |
3198 | return 'c'; | | 3185 | return 'c'; |
3199 | | | 3186 | |
3200 | /* | | 3187 | /* |
3201 | * SYSV modifications happen through the whole | | 3188 | * SYSV modifications happen through the whole |
3202 | * string. Note the pattern is anchored at the end. | | 3189 | * string. Note the pattern is anchored at the end. |
3203 | */ | | 3190 | */ |
3204 | st->termc = *--st->cp; | | 3191 | st->termc = *--st->cp; |
3205 | st->delim = '\0'; | | 3192 | st->delim = '\0'; |
3206 | if (pattern.leftLen == 0 && *st->nstr == '\0') { | | 3193 | if (pattern.leftLen == 0 && *st->nstr == '\0') { |
3207 | st->newStr = st->nstr; /* special case */ | | 3194 | st->newStr = st->nstr; /* special case */ |
3208 | } else { | | 3195 | } else { |
3209 | st->newStr = VarModify( | | 3196 | st->newStr = VarModify( |
3210 | st->ctxt, &st->parsestate, st->nstr, VarSYSVMatch, &pattern); | | 3197 | st->ctxt, &st->parsestate, st->nstr, VarSYSVMatch, &pattern); |
3211 | } | | 3198 | } |
3212 | free(UNCONST(pattern.lhs)); | | 3199 | free(UNCONST(pattern.lhs)); |
3213 | free(UNCONST(pattern.rhs)); | | 3200 | free(UNCONST(pattern.rhs)); |
3214 | return '='; | | 3201 | return '='; |
3215 | } | | 3202 | } |
3216 | #endif | | 3203 | #endif |
3217 | | | 3204 | |
3218 | /* | | 3205 | /* |
3219 | * Now we need to apply any modifiers the user wants applied. | | 3206 | * Now we need to apply any modifiers the user wants applied. |
3220 | * These are: | | 3207 | * These are: |
3221 | * :M<pattern> words which match the given <pattern>. | | 3208 | * :M<pattern> words which match the given <pattern>. |
3222 | * <pattern> is of the standard file | | 3209 | * <pattern> is of the standard file |
3223 | * wildcarding form. | | 3210 | * wildcarding form. |
3224 | * :N<pattern> words which do not match the given <pattern>. | | 3211 | * :N<pattern> words which do not match the given <pattern>. |
3225 | * :S<d><pat1><d><pat2><d>[1gW] | | 3212 | * :S<d><pat1><d><pat2><d>[1gW] |
3226 | * Substitute <pat2> for <pat1> in the value | | 3213 | * Substitute <pat2> for <pat1> in the value |
3227 | * :C<d><pat1><d><pat2><d>[1gW] | | 3214 | * :C<d><pat1><d><pat2><d>[1gW] |
3228 | * Substitute <pat2> for regex <pat1> in the value | | 3215 | * Substitute <pat2> for regex <pat1> in the value |
3229 | * :H Substitute the head of each word | | 3216 | * :H Substitute the head of each word |
3230 | * :T Substitute the tail of each word | | 3217 | * :T Substitute the tail of each word |
3231 | * :E Substitute the extension (minus '.') of | | 3218 | * :E Substitute the extension (minus '.') of |
3232 | * each word | | 3219 | * each word |
3233 | * :R Substitute the root of each word | | 3220 | * :R Substitute the root of each word |
3234 | * (pathname minus the suffix). | | 3221 | * (pathname minus the suffix). |
3235 | * :O ("Order") Alphabeticaly sort words in variable. | | 3222 | * :O ("Order") Alphabeticaly sort words in variable. |
3236 | * :Ox ("intermiX") Randomize words in variable. | | 3223 | * :Ox ("intermiX") Randomize words in variable. |
3237 | * :u ("uniq") Remove adjacent duplicate words. | | 3224 | * :u ("uniq") Remove adjacent duplicate words. |
3238 | * :tu Converts the variable contents to uppercase. | | 3225 | * :tu Converts the variable contents to uppercase. |
3239 | * :tl Converts the variable contents to lowercase. | | 3226 | * :tl Converts the variable contents to lowercase. |
3240 | * :ts[c] Sets varSpace - the char used to | | 3227 | * :ts[c] Sets varSpace - the char used to |
3241 | * separate words to 'c'. If 'c' is | | 3228 | * separate words to 'c'. If 'c' is |
3242 | * omitted then no separation is used. | | 3229 | * omitted then no separation is used. |
3243 | * :tW Treat the variable contents as a single | | 3230 | * :tW Treat the variable contents as a single |
3244 | * word, even if it contains spaces. | | 3231 | * word, even if it contains spaces. |
3245 | * (Mnemonic: one big 'W'ord.) | | 3232 | * (Mnemonic: one big 'W'ord.) |
3246 | * :tw Treat the variable contents as multiple | | 3233 | * :tw Treat the variable contents as multiple |
3247 | * space-separated words. | | 3234 | * space-separated words. |
3248 | * (Mnemonic: many small 'w'ords.) | | 3235 | * (Mnemonic: many small 'w'ords.) |
3249 | * :[index] Select a single word from the value. | | 3236 | * :[index] Select a single word from the value. |
3250 | * :[start..end] Select multiple words from the value. | | 3237 | * :[start..end] Select multiple words from the value. |
3251 | * :[*] or :[0] Select the entire value, as a single | | 3238 | * :[*] or :[0] Select the entire value, as a single |
3252 | * word. Equivalent to :tW. | | 3239 | * word. Equivalent to :tW. |
3253 | * :[@] Select the entire value, as multiple | | 3240 | * :[@] Select the entire value, as multiple |
3254 | * words. Undoes the effect of :[*]. | | 3241 | * words. Undoes the effect of :[*]. |
3255 | * Equivalent to :tw. | | 3242 | * Equivalent to :tw. |
3256 | * :[#] Returns the number of words in the value. | | 3243 | * :[#] Returns the number of words in the value. |
3257 | * | | 3244 | * |
3258 | * :?<true-value>:<false-value> | | 3245 | * :?<true-value>:<false-value> |
3259 | * If the variable evaluates to true, return | | 3246 | * If the variable evaluates to true, return |
3260 | * true value, else return the second value. | | 3247 | * true value, else return the second value. |
3261 | * :lhs=rhs Like :S, but the rhs goes to the end of | | 3248 | * :lhs=rhs Like :S, but the rhs goes to the end of |
3262 | * the invocation. | | 3249 | * the invocation. |
3263 | * :sh Treat the current value as a command | | 3250 | * :sh Treat the current value as a command |
3264 | * to be run, new value is its output. | | 3251 | * to be run, new value is its output. |
3265 | * The following added so we can handle ODE makefiles. | | 3252 | * The following added so we can handle ODE makefiles. |
3266 | * :@<tmpvar>@<newval>@ | | 3253 | * :@<tmpvar>@<newval>@ |
3267 | * Assign a temporary local variable <tmpvar> | | 3254 | * Assign a temporary local variable <tmpvar> |
3268 | * to the current value of each word in turn | | 3255 | * to the current value of each word in turn |
3269 | * and replace each word with the result of | | 3256 | * and replace each word with the result of |
3270 | * evaluating <newval> | | 3257 | * evaluating <newval> |
3271 | * :D<newval> Use <newval> as value if variable defined | | 3258 | * :D<newval> Use <newval> as value if variable defined |
3272 | * :U<newval> Use <newval> as value if variable undefined | | 3259 | * :U<newval> Use <newval> as value if variable undefined |
3273 | * :L Use the name of the variable as the value. | | 3260 | * :L Use the name of the variable as the value. |
3274 | * :P Use the path of the node that has the same | | 3261 | * :P Use the path of the node that has the same |
3275 | * name as the variable as the value. This | | 3262 | * name as the variable as the value. This |
3276 | * basically includes an implied :L so that | | 3263 | * basically includes an implied :L so that |
3277 | * the common method of refering to the path | | 3264 | * the common method of refering to the path |
3278 | * of your dependent 'x' in a rule is to use | | 3265 | * of your dependent 'x' in a rule is to use |
3279 | * the form '${x:P}'. | | 3266 | * the form '${x:P}'. |
3280 | * :!<cmd>! Run cmd much the same as :sh run's the | | 3267 | * :!<cmd>! Run cmd much the same as :sh run's the |
3281 | * current value of the variable. | | 3268 | * current value of the variable. |
3282 | * The ::= modifiers, actually assign a value to the variable. | | 3269 | * The ::= modifiers, actually assign a value to the variable. |
3283 | * Their main purpose is in supporting modifiers of .for loop | | 3270 | * Their main purpose is in supporting modifiers of .for loop |
3284 | * iterators and other obscure uses. They always expand to | | 3271 | * iterators and other obscure uses. They always expand to |
3285 | * nothing. In a target rule that would otherwise expand to an | | 3272 | * nothing. In a target rule that would otherwise expand to an |
3286 | * empty line they can be preceded with @: to keep make happy. | | 3273 | * empty line they can be preceded with @: to keep make happy. |
3287 | * Eg. | | 3274 | * Eg. |
3288 | * | | 3275 | * |
3289 | * foo: .USE | | 3276 | * foo: .USE |
3290 | * .for i in ${.TARGET} ${.TARGET:R}.gz | | 3277 | * .for i in ${.TARGET} ${.TARGET:R}.gz |
3291 | * @: ${t::=$i} | | 3278 | * @: ${t::=$i} |
3292 | * @echo blah ${t:T} | | 3279 | * @echo blah ${t:T} |
3293 | * .endfor | | 3280 | * .endfor |
3294 | * | | 3281 | * |
3295 | * ::=<str> Assigns <str> as the new value of variable. | | 3282 | * ::=<str> Assigns <str> as the new value of variable. |
3296 | * ::?=<str> Assigns <str> as value of variable if | | 3283 | * ::?=<str> Assigns <str> as value of variable if |
3297 | * it was not already set. | | 3284 | * it was not already set. |
3298 | * ::+=<str> Appends <str> to variable. | | 3285 | * ::+=<str> Appends <str> to variable. |
3299 | * ::!=<cmd> Assigns output of <cmd> as the new value of | | 3286 | * ::!=<cmd> Assigns output of <cmd> as the new value of |
3300 | * variable. | | 3287 | * variable. |
3301 | */ | | 3288 | */ |
3302 | static char * | | 3289 | static char * |
3303 | ApplyModifiers(char *nstr, const char *tstr, | | 3290 | ApplyModifiers(char *nstr, const char *tstr, |
3304 | int const startc, int const endc, | | 3291 | int const startc, int const endc, |
3305 | Var * const v, GNode * const ctxt, int const flags, | | 3292 | Var * const v, GNode * const ctxt, int const flags, |
3306 | int * const lengthPtr, void ** const freePtr) | | 3293 | int * const lengthPtr, void ** const freePtr) |
3307 | { | | 3294 | { |
3308 | ApplyModifiersState st = { | | 3295 | ApplyModifiersState st = { |
3309 | startc, endc, v, ctxt, flags, lengthPtr, freePtr, | | 3296 | startc, endc, v, ctxt, flags, lengthPtr, freePtr, |
3310 | nstr, tstr, tstr, tstr, | | 3297 | nstr, tstr, tstr, tstr, |
3311 | '\0', 0, '\0', 0, {' ', FALSE}, NULL | | 3298 | '\0', 0, '\0', 0, {' ', FALSE}, NULL |
3312 | }; | | 3299 | }; |
3313 | | | 3300 | |
3314 | while (*st.tstr && *st.tstr != st.endc) { | | 3301 | while (*st.tstr && *st.tstr != st.endc) { |
3315 | | | 3302 | |
3316 | if (*st.tstr == '$') { | | 3303 | if (*st.tstr == '$') { |
3317 | /* | | 3304 | /* |
3318 | * We may have some complex modifiers in a variable. | | 3305 | * We may have some complex modifiers in a variable. |
3319 | */ | | 3306 | */ |
3320 | void *freeIt; | | 3307 | void *freeIt; |
3321 | char *rval; | | 3308 | char *rval; |
3322 | int rlen; | | 3309 | int rlen; |
3323 | int c; | | 3310 | int c; |
3324 | | | 3311 | |
3325 | rval = Var_Parse(st.tstr, st.ctxt, st.flags, &rlen, &freeIt); | | 3312 | rval = Var_Parse(st.tstr, st.ctxt, st.flags, &rlen, &freeIt); |
3326 | | | 3313 | |
3327 | /* | | 3314 | /* |
3328 | * If we have not parsed up to st.endc or ':', | | 3315 | * If we have not parsed up to st.endc or ':', |
3329 | * we are not interested. | | 3316 | * we are not interested. |
3330 | */ | | 3317 | */ |
3331 | if (rval != NULL && *rval && | | 3318 | if (rval != NULL && *rval && |
3332 | (c = st.tstr[rlen]) != '\0' && | | 3319 | (c = st.tstr[rlen]) != '\0' && |
3333 | c != ':' && | | 3320 | c != ':' && |
3334 | c != st.endc) { | | 3321 | c != st.endc) { |
3335 | free(freeIt); | | 3322 | free(freeIt); |
3336 | goto apply_mods; | | 3323 | goto apply_mods; |
3337 | } | | 3324 | } |
3338 | | | 3325 | |
3339 | if (DEBUG(VAR)) { | | 3326 | if (DEBUG(VAR)) { |
3340 | fprintf(debug_file, "Got '%s' from '%.*s'%.*s\n", | | 3327 | fprintf(debug_file, "Got '%s' from '%.*s'%.*s\n", |
3341 | rval, rlen, st.tstr, rlen, st.tstr + rlen); | | 3328 | rval, rlen, st.tstr, rlen, st.tstr + rlen); |
3342 | } | | 3329 | } |
3343 | | | 3330 | |
3344 | st.tstr += rlen; | | 3331 | st.tstr += rlen; |
3345 | | | 3332 | |
3346 | if (rval != NULL && *rval) { | | 3333 | if (rval != NULL && *rval) { |
3347 | int used; | | 3334 | int used; |
3348 | | | 3335 | |
3349 | st.nstr = ApplyModifiers(st.nstr, rval, 0, 0, st.v, | | 3336 | st.nstr = ApplyModifiers(st.nstr, rval, 0, 0, st.v, |
3350 | st.ctxt, st.flags, &used, st.freePtr); | | 3337 | st.ctxt, st.flags, &used, st.freePtr); |
3351 | if (st.nstr == var_Error | | 3338 | if (st.nstr == var_Error |
3352 | || (st.nstr == varNoError && (st.flags & VARF_UNDEFERR) == 0) | | 3339 | || (st.nstr == varNoError && (st.flags & VARF_UNDEFERR) == 0) |
3353 | || strlen(rval) != (size_t) used) { | | 3340 | || strlen(rval) != (size_t) used) { |
3354 | free(freeIt); | | 3341 | free(freeIt); |
3355 | goto out; /* error already reported */ | | 3342 | goto out; /* error already reported */ |
3356 | } | | 3343 | } |
3357 | } | | 3344 | } |
3358 | free(freeIt); | | 3345 | free(freeIt); |
3359 | if (*st.tstr == ':') | | 3346 | if (*st.tstr == ':') |
3360 | st.tstr++; | | 3347 | st.tstr++; |
3361 | else if (!*st.tstr && st.endc) { | | 3348 | else if (!*st.tstr && st.endc) { |
3362 | Error("Unclosed variable specification after complex " | | 3349 | Error("Unclosed variable specification after complex " |
3363 | "modifier (expecting '%c') for %s", st.endc, st.v->name); | | 3350 | "modifier (expecting '%c') for %s", st.endc, st.v->name); |
3364 | goto out; | | 3351 | goto out; |
3365 | } | | 3352 | } |
3366 | continue; | | 3353 | continue; |
3367 | } | | 3354 | } |
3368 | apply_mods: | | 3355 | apply_mods: |
3369 | if (DEBUG(VAR)) { | | 3356 | if (DEBUG(VAR)) { |
3370 | fprintf(debug_file, "Applying[%s] :%c to \"%s\"\n", st.v->name, | | 3357 | fprintf(debug_file, "Applying[%s] :%c to \"%s\"\n", st.v->name, |
3371 | *st.tstr, st.nstr); | | 3358 | *st.tstr, st.nstr); |
3372 | } | | 3359 | } |
3373 | st.newStr = var_Error; | | 3360 | st.newStr = var_Error; |
3374 | switch ((st.modifier = *st.tstr)) { | | 3361 | switch ((st.modifier = *st.tstr)) { |
3375 | case ':': | | 3362 | case ':': |
3376 | { | | 3363 | { |
3377 | int res = ApplyModifier_Assign(&st); | | 3364 | int res = ApplyModifier_Assign(&st); |
3378 | if (res == 'b') | | 3365 | if (res == 'b') |
3379 | goto bad_modifier; | | 3366 | goto bad_modifier; |
3380 | if (res == 'c') | | 3367 | if (res == 'c') |
3381 | goto cleanup; | | 3368 | goto cleanup; |
3382 | if (res == 'd') | | 3369 | if (res == 'd') |
3383 | goto default_case; | | 3370 | goto default_case; |
3384 | break; | | 3371 | break; |
3385 | } | | 3372 | } |
3386 | case '@': | | 3373 | case '@': |
3387 | ApplyModifier_At(&st); | | 3374 | ApplyModifier_At(&st); |
3388 | break; | | 3375 | break; |
3389 | case '_': | | 3376 | case '_': |
3390 | if (!ApplyModifier_Remember(&st)) | | 3377 | if (!ApplyModifier_Remember(&st)) |
3391 | goto default_case; | | 3378 | goto default_case; |
3392 | break; | | 3379 | break; |
3393 | case 'D': | | 3380 | case 'D': |
3394 | case 'U': | | 3381 | case 'U': |
3395 | ApplyModifier_Defined(&st); | | 3382 | ApplyModifier_Defined(&st); |
3396 | break; | | 3383 | break; |
3397 | case 'L': | | 3384 | case 'L': |
3398 | { | | 3385 | { |
3399 | if ((st.v->flags & VAR_JUNK) != 0) | | 3386 | if ((st.v->flags & VAR_JUNK) != 0) |
3400 | st.v->flags |= VAR_KEEP; | | 3387 | st.v->flags |= VAR_KEEP; |
3401 | st.newStr = bmake_strdup(st.v->name); | | 3388 | st.newStr = bmake_strdup(st.v->name); |
3402 | st.cp = ++st.tstr; | | 3389 | st.cp = ++st.tstr; |
3403 | st.termc = *st.tstr; | | 3390 | st.termc = *st.tstr; |
3404 | break; | | 3391 | break; |
3405 | } | | 3392 | } |
3406 | case 'P': | | 3393 | case 'P': |
3407 | ApplyModifier_Path(&st); | | 3394 | ApplyModifier_Path(&st); |
3408 | break; | | 3395 | break; |
3409 | case '!': | | 3396 | case '!': |
3410 | if (!ApplyModifier_Exclam(&st)) | | 3397 | if (!ApplyModifier_Exclam(&st)) |
3411 | goto cleanup; | | 3398 | goto cleanup; |
3412 | break; | | 3399 | break; |
3413 | case '[': | | 3400 | case '[': |
3414 | { | | 3401 | { |
3415 | int res = ApplyModifier_Words(&st); | | 3402 | int res = ApplyModifier_Words(&st); |
3416 | if (res == 'b') | | 3403 | if (res == 'b') |
3417 | goto bad_modifier; | | 3404 | goto bad_modifier; |
3418 | if (res == 'c') | | 3405 | if (res == 'c') |
3419 | goto cleanup; | | 3406 | goto cleanup; |
3420 | break; | | 3407 | break; |
3421 | } | | 3408 | } |
3422 | case 'g': | | 3409 | case 'g': |
3423 | if (!ApplyModifier_Gmtime(&st)) | | 3410 | if (!ApplyModifier_Gmtime(&st)) |
3424 | goto default_case; | | 3411 | goto default_case; |
3425 | break; | | 3412 | break; |
3426 | case 'h': | | 3413 | case 'h': |
3427 | if (!ApplyModifier_Hash(&st)) | | 3414 | if (!ApplyModifier_Hash(&st)) |
3428 | goto default_case; | | 3415 | goto default_case; |
3429 | break; | | 3416 | break; |
3430 | case 'l': | | 3417 | case 'l': |
3431 | if (!ApplyModifier_Localtime(&st)) | | 3418 | if (!ApplyModifier_Localtime(&st)) |
3432 | goto default_case; | | 3419 | goto default_case; |
3433 | break; | | 3420 | break; |
3434 | case 't': | | 3421 | case 't': |
3435 | if (!ApplyModifier_To(&st)) | | 3422 | if (!ApplyModifier_To(&st)) |
3436 | goto bad_modifier; | | 3423 | goto bad_modifier; |
3437 | break; | | 3424 | break; |
3438 | case 'N': | | 3425 | case 'N': |
3439 | case 'M': | | 3426 | case 'M': |
3440 | ApplyModifier_Match(&st); | | 3427 | ApplyModifier_Match(&st); |
3441 | break; | | 3428 | break; |
3442 | case 'S': | | 3429 | case 'S': |
3443 | if (!ApplyModifier_Subst(&st)) | | 3430 | if (!ApplyModifier_Subst(&st)) |
3444 | goto cleanup; | | 3431 | goto cleanup; |
3445 | break; | | 3432 | break; |
3446 | case '?': | | 3433 | case '?': |
3447 | if (!ApplyModifier_IfElse(&st)) | | 3434 | if (!ApplyModifier_IfElse(&st)) |
3448 | goto cleanup; | | 3435 | goto cleanup; |
3449 | break; | | 3436 | break; |
3450 | #ifndef NO_REGEX | | 3437 | #ifndef NO_REGEX |
3451 | case 'C': | | 3438 | case 'C': |
3452 | if (!ApplyModifier_Regex(&st)) | | 3439 | if (!ApplyModifier_Regex(&st)) |
3453 | goto cleanup; | | 3440 | goto cleanup; |
3454 | break; | | 3441 | break; |
3455 | #endif | | 3442 | #endif |
3456 | case 'q': | | 3443 | case 'q': |
3457 | case 'Q': | | 3444 | case 'Q': |
3458 | if (st.tstr[1] == st.endc || st.tstr[1] == ':') { | | 3445 | if (st.tstr[1] == st.endc || st.tstr[1] == ':') { |
3459 | st.newStr = VarQuote(st.nstr, st.modifier == 'q'); | | 3446 | st.newStr = VarQuote(st.nstr, st.modifier == 'q'); |
3460 | st.cp = st.tstr + 1; | | 3447 | st.cp = st.tstr + 1; |
3461 | st.termc = *st.cp; | | 3448 | st.termc = *st.cp; |
3462 | break; | | 3449 | break; |
3463 | } | | 3450 | } |
3464 | goto default_case; | | 3451 | goto default_case; |
3465 | case 'T': | | 3452 | case 'T': |
3466 | if (st.tstr[1] == st.endc || st.tstr[1] == ':') { | | 3453 | if (st.tstr[1] == st.endc || st.tstr[1] == ':') { |
3467 | st.newStr = VarModify(st.ctxt, &st.parsestate, st.nstr, VarTail, | | 3454 | st.newStr = VarModify(st.ctxt, &st.parsestate, st.nstr, VarTail, |
3468 | NULL); | | 3455 | NULL); |
3469 | st.cp = st.tstr + 1; | | 3456 | st.cp = st.tstr + 1; |
3470 | st.termc = *st.cp; | | 3457 | st.termc = *st.cp; |
3471 | break; | | 3458 | break; |
3472 | } | | 3459 | } |
3473 | goto default_case; | | 3460 | goto default_case; |
3474 | case 'H': | | 3461 | case 'H': |
3475 | if (st.tstr[1] == st.endc || st.tstr[1] == ':') { | | 3462 | if (st.tstr[1] == st.endc || st.tstr[1] == ':') { |
3476 | st.newStr = VarModify(st.ctxt, &st.parsestate, st.nstr, VarHead, | | 3463 | st.newStr = VarModify(st.ctxt, &st.parsestate, st.nstr, VarHead, |
3477 | NULL); | | 3464 | NULL); |
3478 | st.cp = st.tstr + 1; | | 3465 | st.cp = st.tstr + 1; |
3479 | st.termc = *st.cp; | | 3466 | st.termc = *st.cp; |
3480 | break; | | 3467 | break; |
3481 | } | | 3468 | } |
3482 | goto default_case; | | 3469 | goto default_case; |
3483 | case 'E': | | 3470 | case 'E': |
3484 | if (st.tstr[1] == st.endc || st.tstr[1] == ':') { | | 3471 | if (st.tstr[1] == st.endc || st.tstr[1] == ':') { |
3485 | st.newStr = VarModify(st.ctxt, &st.parsestate, st.nstr, VarSuffix, | | 3472 | st.newStr = VarModify(st.ctxt, &st.parsestate, st.nstr, VarSuffix, |
3486 | NULL); | | 3473 | NULL); |
3487 | st.cp = st.tstr + 1; | | 3474 | st.cp = st.tstr + 1; |
3488 | st.termc = *st.cp; | | 3475 | st.termc = *st.cp; |
3489 | break; | | 3476 | break; |
3490 | } | | 3477 | } |
3491 | goto default_case; | | 3478 | goto default_case; |
3492 | case 'R': | | 3479 | case 'R': |
3493 | if (st.tstr[1] == st.endc || st.tstr[1] == ':') { | | 3480 | if (st.tstr[1] == st.endc || st.tstr[1] == ':') { |
3494 | st.newStr = VarModify(st.ctxt, &st.parsestate, st.nstr, VarRoot, | | 3481 | st.newStr = VarModify(st.ctxt, &st.parsestate, st.nstr, VarRoot, |
3495 | NULL); | | 3482 | NULL); |
3496 | st.cp = st.tstr + 1; | | 3483 | st.cp = st.tstr + 1; |
3497 | st.termc = *st.cp; | | 3484 | st.termc = *st.cp; |
3498 | break; | | 3485 | break; |
3499 | } | | 3486 | } |
3500 | goto default_case; | | 3487 | goto default_case; |
3501 | case 'r': | | 3488 | case 'r': |
3502 | if (!ApplyModifier_Range(&st)) | | 3489 | if (!ApplyModifier_Range(&st)) |
3503 | goto default_case; | | 3490 | goto default_case; |
3504 | break; | | 3491 | break; |
3505 | case 'O': | | 3492 | case 'O': |
3506 | if (!ApplyModifier_Order(&st)) | | 3493 | if (!ApplyModifier_Order(&st)) |
3507 | goto bad_modifier; | | 3494 | goto bad_modifier; |
3508 | break; | | 3495 | break; |
3509 | case 'u': | | 3496 | case 'u': |
3510 | if (st.tstr[1] == st.endc || st.tstr[1] == ':') { | | 3497 | if (st.tstr[1] == st.endc || st.tstr[1] == ':') { |
3511 | st.newStr = VarUniq(st.nstr); | | 3498 | st.newStr = VarUniq(st.nstr); |
3512 | st.cp = st.tstr + 1; | | 3499 | st.cp = st.tstr + 1; |
3513 | st.termc = *st.cp; | | 3500 | st.termc = *st.cp; |
3514 | break; | | 3501 | break; |
3515 | } | | 3502 | } |
3516 | goto default_case; | | 3503 | goto default_case; |
3517 | #ifdef SUNSHCMD | | 3504 | #ifdef SUNSHCMD |
3518 | case 's': | | 3505 | case 's': |
3519 | if (st.tstr[1] == 'h' && (st.tstr[2] == st.endc || st.tstr[2] == ':')) { | | 3506 | if (st.tstr[1] == 'h' && (st.tstr[2] == st.endc || st.tstr[2] == ':')) { |
3520 | const char *emsg; | | 3507 | const char *emsg; |
3521 | if (st.flags & VARF_WANTRES) { | | 3508 | if (st.flags & VARF_WANTRES) { |
3522 | st.newStr = Cmd_Exec(st.nstr, &emsg); | | 3509 | st.newStr = Cmd_Exec(st.nstr, &emsg); |
3523 | if (emsg) | | 3510 | if (emsg) |
3524 | Error(emsg, st.nstr); | | 3511 | Error(emsg, st.nstr); |
3525 | } else | | 3512 | } else |
3526 | st.newStr = varNoError; | | 3513 | st.newStr = varNoError; |
3527 | st.cp = st.tstr + 2; | | 3514 | st.cp = st.tstr + 2; |
3528 | st.termc = *st.cp; | | 3515 | st.termc = *st.cp; |
3529 | break; | | 3516 | break; |
3530 | } | | 3517 | } |
3531 | goto default_case; | | 3518 | goto default_case; |
3532 | #endif | | 3519 | #endif |
3533 | default: | | 3520 | default: |
3534 | default_case: | | 3521 | default_case: |
3535 | { | | 3522 | { |
3536 | #ifdef SYSVVARSUB | | 3523 | #ifdef SYSVVARSUB |
3537 | int res = ApplyModifier_SysV(&st); | | 3524 | int res = ApplyModifier_SysV(&st); |
3538 | if (res == 'c') | | 3525 | if (res == 'c') |
3539 | goto cleanup; | | 3526 | goto cleanup; |
3540 | if (res != '=') | | 3527 | if (res != '=') |
3541 | #endif | | 3528 | #endif |
3542 | { | | 3529 | { |
3543 | Error("Unknown modifier '%c'", *st.tstr); | | 3530 | Error("Unknown modifier '%c'", *st.tstr); |
3544 | for (st.cp = st.tstr+1; | | 3531 | for (st.cp = st.tstr+1; |
3545 | *st.cp != ':' && *st.cp != st.endc && *st.cp != '\0'; | | 3532 | *st.cp != ':' && *st.cp != st.endc && *st.cp != '\0'; |
3546 | st.cp++) | | 3533 | st.cp++) |
3547 | continue; | | 3534 | continue; |
3548 | st.termc = *st.cp; | | 3535 | st.termc = *st.cp; |
3549 | st.newStr = var_Error; | | 3536 | st.newStr = var_Error; |
3550 | } | | 3537 | } |
3551 | } | | 3538 | } |
3552 | } | | 3539 | } |
3553 | if (DEBUG(VAR)) { | | 3540 | if (DEBUG(VAR)) { |
3554 | fprintf(debug_file, "Result[%s] of :%c is \"%s\"\n", | | 3541 | fprintf(debug_file, "Result[%s] of :%c is \"%s\"\n", |
3555 | st.v->name, st.modifier, st.newStr); | | 3542 | st.v->name, st.modifier, st.newStr); |
3556 | } | | 3543 | } |
3557 | | | 3544 | |
3558 | if (st.newStr != st.nstr) { | | 3545 | if (st.newStr != st.nstr) { |
3559 | if (*st.freePtr) { | | 3546 | if (*st.freePtr) { |
3560 | free(st.nstr); | | 3547 | free(st.nstr); |
3561 | *st.freePtr = NULL; | | 3548 | *st.freePtr = NULL; |
3562 | } | | 3549 | } |
3563 | st.nstr = st.newStr; | | 3550 | st.nstr = st.newStr; |
3564 | if (st.nstr != var_Error && st.nstr != varNoError) { | | 3551 | if (st.nstr != var_Error && st.nstr != varNoError) { |
3565 | *st.freePtr = st.nstr; | | 3552 | *st.freePtr = st.nstr; |
3566 | } | | 3553 | } |
3567 | } | | 3554 | } |
3568 | if (st.termc == '\0' && st.endc != '\0') { | | 3555 | if (st.termc == '\0' && st.endc != '\0') { |
3569 | Error("Unclosed variable specification (expecting '%c') " | | 3556 | Error("Unclosed variable specification (expecting '%c') " |
3570 | "for \"%s\" (value \"%s\") modifier %c", | | 3557 | "for \"%s\" (value \"%s\") modifier %c", |
3571 | st.endc, st.v->name, st.nstr, st.modifier); | | 3558 | st.endc, st.v->name, st.nstr, st.modifier); |
3572 | } else if (st.termc == ':') { | | 3559 | } else if (st.termc == ':') { |
3573 | st.cp++; | | 3560 | st.cp++; |
3574 | } | | 3561 | } |
3575 | st.tstr = st.cp; | | 3562 | st.tstr = st.cp; |
3576 | } | | 3563 | } |
3577 | out: | | 3564 | out: |
3578 | *st.lengthPtr = st.tstr - st.start; | | 3565 | *st.lengthPtr = st.tstr - st.start; |
3579 | return st.nstr; | | 3566 | return st.nstr; |
3580 | | | 3567 | |
3581 | bad_modifier: | | 3568 | bad_modifier: |
3582 | /* "{(" */ | | 3569 | /* "{(" */ |
3583 | Error("Bad modifier `:%.*s' for %s", (int)strcspn(st.tstr, ":)}"), st.tstr, | | 3570 | Error("Bad modifier `:%.*s' for %s", (int)strcspn(st.tstr, ":)}"), st.tstr, |
3584 | st.v->name); | | 3571 | st.v->name); |
3585 | | | 3572 | |
3586 | cleanup: | | 3573 | cleanup: |
3587 | *st.lengthPtr = st.cp - st.start; | | 3574 | *st.lengthPtr = st.cp - st.start; |
3588 | if (st.delim != '\0') | | 3575 | if (st.delim != '\0') |
3589 | Error("Unclosed substitution for %s (%c missing)", | | 3576 | Error("Unclosed substitution for %s (%c missing)", |
3590 | st.v->name, st.delim); | | 3577 | st.v->name, st.delim); |
3591 | free(*st.freePtr); | | 3578 | free(*st.freePtr); |
3592 | *st.freePtr = NULL; | | 3579 | *st.freePtr = NULL; |
3593 | return var_Error; | | 3580 | return var_Error; |
3594 | } | | 3581 | } |
3595 | | | 3582 | |
3596 | /*- | | 3583 | /*- |
3597 | *----------------------------------------------------------------------- | | 3584 | *----------------------------------------------------------------------- |
3598 | * Var_Parse -- | | 3585 | * Var_Parse -- |
3599 | * Given the start of a variable invocation, extract the variable | | 3586 | * Given the start of a variable invocation, extract the variable |
3600 | * name and find its value, then modify it according to the | | 3587 | * name and find its value, then modify it according to the |
3601 | * specification. | | 3588 | * specification. |
3602 | * | | 3589 | * |
3603 | * Input: | | 3590 | * Input: |
3604 | * str The string to parse | | 3591 | * str The string to parse |
3605 | * ctxt The context for the variable | | 3592 | * ctxt The context for the variable |
3606 | * flags VARF_UNDEFERR if undefineds are an error | | 3593 | * flags VARF_UNDEFERR if undefineds are an error |
3607 | * VARF_WANTRES if we actually want the result | | 3594 | * VARF_WANTRES if we actually want the result |
3608 | * VARF_ASSIGN if we are in a := assignment | | 3595 | * VARF_ASSIGN if we are in a := assignment |
3609 | * lengthPtr OUT: The length of the specification | | 3596 | * lengthPtr OUT: The length of the specification |
3610 | * freePtr OUT: Non-NULL if caller should free *freePtr | | 3597 | * freePtr OUT: Non-NULL if caller should free *freePtr |
3611 | * | | 3598 | * |
3612 | * Results: | | 3599 | * Results: |
3613 | * The (possibly-modified) value of the variable or var_Error if the | | 3600 | * The (possibly-modified) value of the variable or var_Error if the |
3614 | * specification is invalid. The length of the specification is | | 3601 | * specification is invalid. The length of the specification is |
3615 | * placed in *lengthPtr (for invalid specifications, this is just | | 3602 | * placed in *lengthPtr (for invalid specifications, this is just |
3616 | * 2...?). | | 3603 | * 2...?). |
3617 | * If *freePtr is non-NULL then it's a pointer that the caller | | 3604 | * If *freePtr is non-NULL then it's a pointer that the caller |
3618 | * should pass to free() to free memory used by the result. | | 3605 | * should pass to free() to free memory used by the result. |
3619 | * | | 3606 | * |
3620 | * Side Effects: | | 3607 | * Side Effects: |
3621 | * None. | | 3608 | * None. |
3622 | * | | 3609 | * |
3623 | *----------------------------------------------------------------------- | | 3610 | *----------------------------------------------------------------------- |
3624 | */ | | 3611 | */ |
3625 | /* coverity[+alloc : arg-*4] */ | | 3612 | /* coverity[+alloc : arg-*4] */ |
3626 | char * | | 3613 | char * |
3627 | Var_Parse(const char *str, GNode *ctxt, Varf_Flags flags, | | 3614 | Var_Parse(const char *str, GNode *ctxt, Varf_Flags flags, |
3628 | int *lengthPtr, void **freePtr) | | 3615 | int *lengthPtr, void **freePtr) |
3629 | { | | 3616 | { |
3630 | const char *tstr; /* Pointer into str */ | | 3617 | const char *tstr; /* Pointer into str */ |
3631 | Var *v; /* Variable in invocation */ | | 3618 | Var *v; /* Variable in invocation */ |
3632 | Boolean haveModifier; /* TRUE if have modifiers for the variable */ | | 3619 | Boolean haveModifier; /* TRUE if have modifiers for the variable */ |
3633 | char endc; /* Ending character when variable in parens | | 3620 | char endc; /* Ending character when variable in parens |
3634 | * or braces */ | | 3621 | * or braces */ |
3635 | char startc; /* Starting character when variable in parens | | 3622 | char startc; /* Starting character when variable in parens |
3636 | * or braces */ | | 3623 | * or braces */ |
3637 | int vlen; /* Length of variable name */ | | 3624 | int vlen; /* Length of variable name */ |
3638 | const char *start; /* Points to original start of str */ | | 3625 | const char *start; /* Points to original start of str */ |
3639 | char *nstr; /* New string, used during expansion */ | | 3626 | char *nstr; /* New string, used during expansion */ |
3640 | Boolean dynamic; /* TRUE if the variable is local and we're | | 3627 | Boolean dynamic; /* TRUE if the variable is local and we're |
3641 | * expanding it in a non-local context. This | | 3628 | * expanding it in a non-local context. This |
3642 | * is done to support dynamic sources. The | | 3629 | * is done to support dynamic sources. The |
3643 | * result is just the invocation, unaltered */ | | 3630 | * result is just the invocation, unaltered */ |
3644 | const char *extramodifiers; /* extra modifiers to apply first */ | | 3631 | const char *extramodifiers; /* extra modifiers to apply first */ |
3645 | char name[2]; | | 3632 | char name[2]; |
3646 | | | 3633 | |
3647 | *freePtr = NULL; | | 3634 | *freePtr = NULL; |
3648 | extramodifiers = NULL; | | 3635 | extramodifiers = NULL; |
3649 | dynamic = FALSE; | | 3636 | dynamic = FALSE; |
3650 | start = str; | | 3637 | start = str; |
3651 | | | 3638 | |
3652 | startc = str[1]; | | 3639 | startc = str[1]; |
3653 | if (startc != PROPEN && startc != BROPEN) { | | 3640 | if (startc != PROPEN && startc != BROPEN) { |
3654 | /* | | 3641 | /* |
3655 | * If it's not bounded by braces of some sort, life is much simpler. | | 3642 | * If it's not bounded by braces of some sort, life is much simpler. |
3656 | * We just need to check for the first character and return the | | 3643 | * We just need to check for the first character and return the |
3657 | * value if it exists. | | 3644 | * value if it exists. |
3658 | */ | | 3645 | */ |
3659 | | | 3646 | |
3660 | /* Error out some really stupid names */ | | 3647 | /* Error out some really stupid names */ |
3661 | if (startc == '\0' || strchr(")}:$", startc)) { | | 3648 | if (startc == '\0' || strchr(")}:$", startc)) { |
3662 | *lengthPtr = 1; | | 3649 | *lengthPtr = 1; |
3663 | return var_Error; | | 3650 | return var_Error; |
3664 | } | | 3651 | } |
3665 | name[0] = startc; | | 3652 | name[0] = startc; |
3666 | name[1] = '\0'; | | 3653 | name[1] = '\0'; |
3667 | | | 3654 | |
3668 | v = VarFind(name, ctxt, FIND_ENV | FIND_GLOBAL | FIND_CMD); | | 3655 | v = VarFind(name, ctxt, FIND_ENV | FIND_GLOBAL | FIND_CMD); |
3669 | if (v == NULL) { | | 3656 | if (v == NULL) { |
3670 | *lengthPtr = 2; | | 3657 | *lengthPtr = 2; |
3671 | | | 3658 | |
3672 | if ((ctxt == VAR_CMD) || (ctxt == VAR_GLOBAL)) { | | 3659 | if ((ctxt == VAR_CMD) || (ctxt == VAR_GLOBAL)) { |
3673 | /* | | 3660 | /* |
3674 | * If substituting a local variable in a non-local context, | | 3661 | * If substituting a local variable in a non-local context, |
3675 | * assume it's for dynamic source stuff. We have to handle | | 3662 | * assume it's for dynamic source stuff. We have to handle |
3676 | * this specially and return the longhand for the variable | | 3663 | * this specially and return the longhand for the variable |
3677 | * with the dollar sign escaped so it makes it back to the | | 3664 | * with the dollar sign escaped so it makes it back to the |
3678 | * caller. Only four of the local variables are treated | | 3665 | * caller. Only four of the local variables are treated |
3679 | * specially as they are the only four that will be set | | 3666 | * specially as they are the only four that will be set |
3680 | * when dynamic sources are expanded. | | 3667 | * when dynamic sources are expanded. |
3681 | */ | | 3668 | */ |
3682 | switch (str[1]) { | | 3669 | switch (str[1]) { |
3683 | case '@': | | 3670 | case '@': |
3684 | return UNCONST("$(.TARGET)"); | | 3671 | return UNCONST("$(.TARGET)"); |
3685 | case '%': | | 3672 | case '%': |
3686 | return UNCONST("$(.MEMBER)"); | | 3673 | return UNCONST("$(.MEMBER)"); |
3687 | case '*': | | 3674 | case '*': |
3688 | return UNCONST("$(.PREFIX)"); | | 3675 | return UNCONST("$(.PREFIX)"); |
3689 | case '!': | | 3676 | case '!': |
3690 | return UNCONST("$(.ARCHIVE)"); | | 3677 | return UNCONST("$(.ARCHIVE)"); |
3691 | } | | 3678 | } |
3692 | } | | 3679 | } |
3693 | return (flags & VARF_UNDEFERR) ? var_Error : varNoError; | | 3680 | return (flags & VARF_UNDEFERR) ? var_Error : varNoError; |
3694 | } else { | | 3681 | } else { |
3695 | haveModifier = FALSE; | | 3682 | haveModifier = FALSE; |
3696 | tstr = &str[1]; | | 3683 | tstr = &str[1]; |
3697 | endc = str[1]; | | 3684 | endc = str[1]; |
3698 | } | | 3685 | } |
3699 | } else { | | 3686 | } else { |
3700 | Buffer buf; /* Holds the variable name */ | | 3687 | Buffer buf; /* Holds the variable name */ |
3701 | int depth = 1; | | 3688 | int depth = 1; |
3702 | | | 3689 | |
3703 | endc = startc == PROPEN ? PRCLOSE : BRCLOSE; | | 3690 | endc = startc == PROPEN ? PRCLOSE : BRCLOSE; |
3704 | Buf_Init(&buf, 0); | | 3691 | Buf_Init(&buf, 0); |
3705 | | | 3692 | |
3706 | /* | | 3693 | /* |
3707 | * Skip to the end character or a colon, whichever comes first. | | 3694 | * Skip to the end character or a colon, whichever comes first. |
3708 | */ | | 3695 | */ |
3709 | for (tstr = str + 2; *tstr != '\0'; tstr++) | | 3696 | for (tstr = str + 2; *tstr != '\0'; tstr++) { |
3710 | { | | | |
3711 | /* Track depth so we can spot parse errors. */ | | 3697 | /* Track depth so we can spot parse errors. */ |
3712 | if (*tstr == startc) | | 3698 | if (*tstr == startc) |
3713 | depth++; | | 3699 | depth++; |
3714 | if (*tstr == endc) { | | 3700 | if (*tstr == endc) { |
3715 | if (--depth == 0) | | 3701 | if (--depth == 0) |
3716 | break; | | 3702 | break; |
3717 | } | | 3703 | } |
3718 | if (depth == 1 && *tstr == ':') | | 3704 | if (depth == 1 && *tstr == ':') |
3719 | break; | | 3705 | break; |
3720 | /* A variable inside a variable, expand. */ | | 3706 | /* A variable inside a variable, expand. */ |
3721 | if (*tstr == '$') { | | 3707 | if (*tstr == '$') { |
3722 | int rlen; | | 3708 | int rlen; |
3723 | void *freeIt; | | 3709 | void *freeIt; |
3724 | char *rval = Var_Parse(tstr, ctxt, flags, &rlen, &freeIt); | | 3710 | char *rval = Var_Parse(tstr, ctxt, flags, &rlen, &freeIt); |
3725 | if (rval != NULL) | | 3711 | if (rval != NULL) |
3726 | Buf_AddBytes(&buf, strlen(rval), rval); | | 3712 | Buf_AddBytes(&buf, strlen(rval), rval); |
3727 | free(freeIt); | | 3713 | free(freeIt); |
3728 | tstr += rlen - 1; | | 3714 | tstr += rlen - 1; |
3729 | } else | | 3715 | } else |
3730 | Buf_AddByte(&buf, *tstr); | | 3716 | Buf_AddByte(&buf, *tstr); |
3731 | } | | 3717 | } |
3732 | if (*tstr == ':') { | | 3718 | if (*tstr == ':') { |
3733 | haveModifier = TRUE; | | 3719 | haveModifier = TRUE; |
3734 | } else if (*tstr == endc) { | | 3720 | } else if (*tstr == endc) { |
3735 | haveModifier = FALSE; | | 3721 | haveModifier = FALSE; |
3736 | } else { | | 3722 | } else { |
3737 | /* | | 3723 | /* |
3738 | * If we never did find the end character, return NULL | | 3724 | * If we never did find the end character, return NULL |
3739 | * right now, setting the length to be the distance to | | 3725 | * right now, setting the length to be the distance to |
3740 | * the end of the string, since that's what make does. | | 3726 | * the end of the string, since that's what make does. |
3741 | */ | | 3727 | */ |
3742 | *lengthPtr = tstr - str; | | 3728 | *lengthPtr = tstr - str; |
3743 | Buf_Destroy(&buf, TRUE); | | 3729 | Buf_Destroy(&buf, TRUE); |
3744 | return var_Error; | | 3730 | return var_Error; |
3745 | } | | 3731 | } |
3746 | str = Buf_GetAll(&buf, &vlen); | | 3732 | str = Buf_GetAll(&buf, &vlen); |
3747 | | | 3733 | |
3748 | /* | | 3734 | /* |
3749 | * At this point, str points into newly allocated memory from | | 3735 | * At this point, str points into newly allocated memory from |
3750 | * buf, containing only the name of the variable. | | 3736 | * buf, containing only the name of the variable. |
3751 | * | | 3737 | * |
3752 | * start and tstr point into the const string that was pointed | | 3738 | * start and tstr point into the const string that was pointed |
3753 | * to by the original value of the str parameter. start points | | 3739 | * to by the original value of the str parameter. start points |
3754 | * to the '$' at the beginning of the string, while tstr points | | 3740 | * to the '$' at the beginning of the string, while tstr points |
3755 | * to the char just after the end of the variable name -- this | | 3741 | * to the char just after the end of the variable name -- this |
3756 | * will be '\0', ':', PRCLOSE, or BRCLOSE. | | 3742 | * will be '\0', ':', PRCLOSE, or BRCLOSE. |
3757 | */ | | 3743 | */ |
3758 | | | 3744 | |
3759 | v = VarFind(str, ctxt, FIND_ENV | FIND_GLOBAL | FIND_CMD); | | 3745 | v = VarFind(str, ctxt, FIND_ENV | FIND_GLOBAL | FIND_CMD); |
3760 | /* | | 3746 | /* |
3761 | * Check also for bogus D and F forms of local variables since we're | | 3747 | * Check also for bogus D and F forms of local variables since we're |
3762 | * in a local context and the name is the right length. | | 3748 | * in a local context and the name is the right length. |
3763 | */ | | 3749 | */ |
3764 | if ((v == NULL) && (ctxt != VAR_CMD) && (ctxt != VAR_GLOBAL) && | | 3750 | if ((v == NULL) && (ctxt != VAR_CMD) && (ctxt != VAR_GLOBAL) && |
3765 | (vlen == 2) && (str[1] == 'F' || str[1] == 'D') && | | 3751 | (vlen == 2) && (str[1] == 'F' || str[1] == 'D') && |
3766 | strchr("@%?*!<>", str[0]) != NULL) { | | 3752 | strchr("@%?*!<>", str[0]) != NULL) { |
3767 | /* | | 3753 | /* |
3768 | * Well, it's local -- go look for it. | | 3754 | * Well, it's local -- go look for it. |
3769 | */ | | 3755 | */ |
3770 | name[0] = *str; | | 3756 | name[0] = *str; |
3771 | name[1] = '\0'; | | 3757 | name[1] = '\0'; |
3772 | v = VarFind(name, ctxt, 0); | | 3758 | v = VarFind(name, ctxt, 0); |
3773 | | | 3759 | |
3774 | if (v != NULL) { | | 3760 | if (v != NULL) { |
3775 | if (str[1] == 'D') { | | 3761 | if (str[1] == 'D') { |
3776 | extramodifiers = "H:"; | | 3762 | extramodifiers = "H:"; |
3777 | } else { /* F */ | | 3763 | } else { /* F */ |
3778 | extramodifiers = "T:"; | | 3764 | extramodifiers = "T:"; |
3779 | } | | 3765 | } |
3780 | } | | 3766 | } |
3781 | } | | 3767 | } |
3782 | | | 3768 | |
3783 | if (v == NULL) { | | 3769 | if (v == NULL) { |
3784 | if (((vlen == 1) || | | 3770 | if (((vlen == 1) || |
3785 | (((vlen == 2) && (str[1] == 'F' || str[1] == 'D')))) && | | 3771 | (((vlen == 2) && (str[1] == 'F' || str[1] == 'D')))) && |
3786 | ((ctxt == VAR_CMD) || (ctxt == VAR_GLOBAL))) | | 3772 | ((ctxt == VAR_CMD) || (ctxt == VAR_GLOBAL))) |
3787 | { | | 3773 | { |
3788 | /* | | 3774 | /* |
3789 | * If substituting a local variable in a non-local context, | | 3775 | * If substituting a local variable in a non-local context, |
3790 | * assume it's for dynamic source stuff. We have to handle | | 3776 | * assume it's for dynamic source stuff. We have to handle |
3791 | * this specially and return the longhand for the variable | | 3777 | * this specially and return the longhand for the variable |
3792 | * with the dollar sign escaped so it makes it back to the | | 3778 | * with the dollar sign escaped so it makes it back to the |
3793 | * caller. Only four of the local variables are treated | | 3779 | * caller. Only four of the local variables are treated |
3794 | * specially as they are the only four that will be set | | 3780 | * specially as they are the only four that will be set |
3795 | * when dynamic sources are expanded. | | 3781 | * when dynamic sources are expanded. |
3796 | */ | | 3782 | */ |
3797 | switch (*str) { | | 3783 | switch (*str) { |
3798 | case '@': | | 3784 | case '@': |
3799 | case '%': | | 3785 | case '%': |
3800 | case '*': | | 3786 | case '*': |
3801 | case '!': | | 3787 | case '!': |
3802 | dynamic = TRUE; | | 3788 | dynamic = TRUE; |
3803 | break; | | 3789 | break; |
3804 | } | | 3790 | } |
3805 | } else if (vlen > 2 && *str == '.' && | | 3791 | } else if (vlen > 2 && *str == '.' && |
3806 | isupper((unsigned char) str[1]) && | | 3792 | isupper((unsigned char) str[1]) && |
3807 | (ctxt == VAR_CMD || ctxt == VAR_GLOBAL)) | | 3793 | (ctxt == VAR_CMD || ctxt == VAR_GLOBAL)) |
3808 | { | | 3794 | { |
3809 | int len = vlen - 1; | | 3795 | int len = vlen - 1; |
3810 | if ((strncmp(str, ".TARGET", len) == 0) || | | 3796 | if ((strncmp(str, ".TARGET", len) == 0) || |
3811 | (strncmp(str, ".ARCHIVE", len) == 0) || | | 3797 | (strncmp(str, ".ARCHIVE", len) == 0) || |
3812 | (strncmp(str, ".PREFIX", len) == 0) || | | 3798 | (strncmp(str, ".PREFIX", len) == 0) || |
3813 | (strncmp(str, ".MEMBER", len) == 0)) | | 3799 | (strncmp(str, ".MEMBER", len) == 0)) |
3814 | { | | 3800 | { |
3815 | dynamic = TRUE; | | 3801 | dynamic = TRUE; |
3816 | } | | 3802 | } |
3817 | } | | 3803 | } |
3818 | | | 3804 | |
3819 | if (!haveModifier) { | | 3805 | if (!haveModifier) { |
3820 | /* | | 3806 | /* |
3821 | * No modifiers -- have specification length so we can return | | 3807 | * No modifiers -- have specification length so we can return |
3822 | * now. | | 3808 | * now. |
3823 | */ | | 3809 | */ |
3824 | *lengthPtr = tstr - start + 1; | | 3810 | *lengthPtr = tstr - start + 1; |
3825 | if (dynamic) { | | 3811 | if (dynamic) { |
3826 | char *pstr = bmake_strndup(start, *lengthPtr); | | 3812 | char *pstr = bmake_strndup(start, *lengthPtr); |
3827 | *freePtr = pstr; | | 3813 | *freePtr = pstr; |
3828 | Buf_Destroy(&buf, TRUE); | | 3814 | Buf_Destroy(&buf, TRUE); |
3829 | return pstr; | | 3815 | return pstr; |
3830 | } else { | | 3816 | } else { |
3831 | Buf_Destroy(&buf, TRUE); | | 3817 | Buf_Destroy(&buf, TRUE); |
3832 | return (flags & VARF_UNDEFERR) ? var_Error : varNoError; | | 3818 | return (flags & VARF_UNDEFERR) ? var_Error : varNoError; |
3833 | } | | 3819 | } |
3834 | } else { | | 3820 | } else { |
3835 | /* | | 3821 | /* |
3836 | * Still need to get to the end of the variable specification, | | 3822 | * Still need to get to the end of the variable specification, |
3837 | * so kludge up a Var structure for the modifications | | 3823 | * so kludge up a Var structure for the modifications |
3838 | */ | | 3824 | */ |
3839 | v = bmake_malloc(sizeof(Var)); | | 3825 | v = bmake_malloc(sizeof(Var)); |
3840 | v->name = UNCONST(str); | | 3826 | v->name = UNCONST(str); |
3841 | Buf_Init(&v->val, 1); | | 3827 | Buf_Init(&v->val, 1); |
3842 | v->flags = VAR_JUNK; | | 3828 | v->flags = VAR_JUNK; |
3843 | Buf_Destroy(&buf, FALSE); | | 3829 | Buf_Destroy(&buf, FALSE); |
3844 | } | | 3830 | } |
3845 | } else | | 3831 | } else |
3846 | Buf_Destroy(&buf, TRUE); | | 3832 | Buf_Destroy(&buf, TRUE); |
3847 | } | | 3833 | } |
3848 | | | 3834 | |
3849 | if (v->flags & VAR_IN_USE) { | | 3835 | if (v->flags & VAR_IN_USE) { |
3850 | Fatal("Variable %s is recursive.", v->name); | | 3836 | Fatal("Variable %s is recursive.", v->name); |
3851 | /*NOTREACHED*/ | | 3837 | /*NOTREACHED*/ |
3852 | } else { | | 3838 | } else { |
3853 | v->flags |= VAR_IN_USE; | | 3839 | v->flags |= VAR_IN_USE; |
3854 | } | | 3840 | } |
3855 | /* | | 3841 | /* |
3856 | * Before doing any modification, we have to make sure the value | | 3842 | * Before doing any modification, we have to make sure the value |
3857 | * has been fully expanded. If it looks like recursion might be | | 3843 | * has been fully expanded. If it looks like recursion might be |
3858 | * necessary (there's a dollar sign somewhere in the variable's value) | | 3844 | * necessary (there's a dollar sign somewhere in the variable's value) |
3859 | * we just call Var_Subst to do any other substitutions that are | | 3845 | * we just call Var_Subst to do any other substitutions that are |
3860 | * necessary. Note that the value returned by Var_Subst will have | | 3846 | * necessary. Note that the value returned by Var_Subst will have |
3861 | * been dynamically-allocated, so it will need freeing when we | | 3847 | * been dynamically-allocated, so it will need freeing when we |
3862 | * return. | | 3848 | * return. |
3863 | */ | | 3849 | */ |
3864 | nstr = Buf_GetAll(&v->val, NULL); | | 3850 | nstr = Buf_GetAll(&v->val, NULL); |
3865 | if (strchr(nstr, '$') != NULL && (flags & VARF_WANTRES) != 0) { | | 3851 | if (strchr(nstr, '$') != NULL && (flags & VARF_WANTRES) != 0) { |
3866 | nstr = Var_Subst(NULL, nstr, ctxt, flags); | | 3852 | nstr = Var_Subst(NULL, nstr, ctxt, flags); |
3867 | *freePtr = nstr; | | 3853 | *freePtr = nstr; |
3868 | } | | 3854 | } |
3869 | | | 3855 | |
3870 | v->flags &= ~VAR_IN_USE; | | 3856 | v->flags &= ~VAR_IN_USE; |
3871 | | | 3857 | |
3872 | if (nstr != NULL && (haveModifier || extramodifiers != NULL)) { | | 3858 | if (nstr != NULL && (haveModifier || extramodifiers != NULL)) { |
3873 | void *extraFree; | | 3859 | void *extraFree; |
3874 | int used; | | 3860 | int used; |
3875 | | | 3861 | |
3876 | extraFree = NULL; | | 3862 | extraFree = NULL; |
3877 | if (extramodifiers != NULL) { | | 3863 | if (extramodifiers != NULL) { |
3878 | nstr = ApplyModifiers(nstr, extramodifiers, '(', ')', | | 3864 | nstr = ApplyModifiers(nstr, extramodifiers, '(', ')', |
3879 | v, ctxt, flags, &used, &extraFree); | | 3865 | v, ctxt, flags, &used, &extraFree); |
3880 | } | | 3866 | } |
3881 | | | 3867 | |
3882 | if (haveModifier) { | | 3868 | if (haveModifier) { |
3883 | /* Skip initial colon. */ | | 3869 | /* Skip initial colon. */ |
3884 | tstr++; | | 3870 | tstr++; |
3885 | | | 3871 | |
3886 | nstr = ApplyModifiers(nstr, tstr, startc, endc, | | 3872 | nstr = ApplyModifiers(nstr, tstr, startc, endc, |
3887 | v, ctxt, flags, &used, freePtr); | | 3873 | v, ctxt, flags, &used, freePtr); |
3888 | tstr += used; | | 3874 | tstr += used; |
3889 | free(extraFree); | | 3875 | free(extraFree); |
3890 | } else { | | 3876 | } else { |
3891 | *freePtr = extraFree; | | 3877 | *freePtr = extraFree; |
3892 | } | | 3878 | } |
3893 | } | | 3879 | } |
3894 | *lengthPtr = tstr - start + (*tstr ? 1 : 0); | | 3880 | *lengthPtr = tstr - start + (*tstr ? 1 : 0); |
3895 | | | 3881 | |
3896 | if (v->flags & VAR_FROM_ENV) { | | 3882 | if (v->flags & VAR_FROM_ENV) { |
3897 | Boolean destroy = FALSE; | | 3883 | Boolean destroy = FALSE; |
3898 | | | 3884 | |
3899 | if (nstr != Buf_GetAll(&v->val, NULL)) { | | 3885 | if (nstr != Buf_GetAll(&v->val, NULL)) { |
3900 | destroy = TRUE; | | 3886 | destroy = TRUE; |
3901 | } else { | | 3887 | } else { |
3902 | /* | | 3888 | /* |
3903 | * Returning the value unmodified, so tell the caller to free | | 3889 | * Returning the value unmodified, so tell the caller to free |
3904 | * the thing. | | 3890 | * the thing. |
3905 | */ | | 3891 | */ |
3906 | *freePtr = nstr; | | 3892 | *freePtr = nstr; |
3907 | } | | 3893 | } |
3908 | VarFreeEnv(v, destroy); | | 3894 | VarFreeEnv(v, destroy); |
3909 | } else if (v->flags & VAR_JUNK) { | | 3895 | } else if (v->flags & VAR_JUNK) { |
3910 | /* | | 3896 | /* |
3911 | * Perform any free'ing needed and set *freePtr to NULL so the caller | | 3897 | * Perform any free'ing needed and set *freePtr to NULL so the caller |
3912 | * doesn't try to free a static pointer. | | 3898 | * doesn't try to free a static pointer. |
3913 | * If VAR_KEEP is also set then we want to keep str as is. | | 3899 | * If VAR_KEEP is also set then we want to keep str as is. |
3914 | */ | | 3900 | */ |
3915 | if (!(v->flags & VAR_KEEP)) { | | 3901 | if (!(v->flags & VAR_KEEP)) { |
3916 | if (*freePtr) { | | 3902 | if (*freePtr) { |
3917 | free(nstr); | | 3903 | free(nstr); |
3918 | *freePtr = NULL; | | 3904 | *freePtr = NULL; |
3919 | } | | 3905 | } |
3920 | if (dynamic) { | | 3906 | if (dynamic) { |
3921 | nstr = bmake_strndup(start, *lengthPtr); | | 3907 | nstr = bmake_strndup(start, *lengthPtr); |
3922 | *freePtr = nstr; | | 3908 | *freePtr = nstr; |
3923 | } else { | | 3909 | } else { |
3924 | nstr = (flags & VARF_UNDEFERR) ? var_Error : varNoError; | | 3910 | nstr = (flags & VARF_UNDEFERR) ? var_Error : varNoError; |
3925 | } | | 3911 | } |
3926 | } | | 3912 | } |
3927 | if (nstr != Buf_GetAll(&v->val, NULL)) | | 3913 | if (nstr != Buf_GetAll(&v->val, NULL)) |
3928 | Buf_Destroy(&v->val, TRUE); | | 3914 | Buf_Destroy(&v->val, TRUE); |
3929 | free(v->name); | | 3915 | free(v->name); |
3930 | free(v); | | 3916 | free(v); |
3931 | } | | 3917 | } |
3932 | return nstr; | | 3918 | return nstr; |
3933 | } | | 3919 | } |
3934 | | | 3920 | |
3935 | /*- | | 3921 | /*- |
3936 | *----------------------------------------------------------------------- | | 3922 | *----------------------------------------------------------------------- |
3937 | * Var_Subst -- | | 3923 | * Var_Subst -- |
3938 | * Substitute for all variables in the given string in the given context | | 3924 | * Substitute for all variables in the given string in the given context |
3939 | * If flags & VARF_UNDEFERR, Parse_Error will be called when an undefined | | 3925 | * If flags & VARF_UNDEFERR, Parse_Error will be called when an undefined |
3940 | * variable is encountered. | | 3926 | * variable is encountered. |
3941 | * | | 3927 | * |
3942 | * Input: | | 3928 | * Input: |
3943 | * var Named variable || NULL for all | | 3929 | * var Named variable || NULL for all |
3944 | * str the string which to substitute | | 3930 | * str the string which to substitute |
3945 | * ctxt the context wherein to find variables | | 3931 | * ctxt the context wherein to find variables |
3946 | * flags VARF_UNDEFERR if undefineds are an error | | 3932 | * flags VARF_UNDEFERR if undefineds are an error |
3947 | * VARF_WANTRES if we actually want the result | | 3933 | * VARF_WANTRES if we actually want the result |
3948 | * VARF_ASSIGN if we are in a := assignment | | 3934 | * VARF_ASSIGN if we are in a := assignment |
3949 | * | | 3935 | * |
3950 | * Results: | | 3936 | * Results: |
3951 | * The resulting string. | | 3937 | * The resulting string. |
3952 | * | | 3938 | * |
3953 | * Side Effects: | | 3939 | * Side Effects: |
3954 | * None. The old string must be freed by the caller | | 3940 | * None. The old string must be freed by the caller |
3955 | *----------------------------------------------------------------------- | | 3941 | *----------------------------------------------------------------------- |
3956 | */ | | 3942 | */ |
3957 | char * | | 3943 | char * |
3958 | Var_Subst(const char *var, const char *str, GNode *ctxt, Varf_Flags flags) | | 3944 | Var_Subst(const char *var, const char *str, GNode *ctxt, Varf_Flags flags) |
3959 | { | | 3945 | { |
3960 | Buffer buf; /* Buffer for forming things */ | | 3946 | Buffer buf; /* Buffer for forming things */ |
3961 | char *val; /* Value to substitute for a variable */ | | 3947 | char *val; /* Value to substitute for a variable */ |
3962 | int length; /* Length of the variable invocation */ | | 3948 | int length; /* Length of the variable invocation */ |
3963 | Boolean trailingBslash; /* variable ends in \ */ | | 3949 | Boolean trailingBslash; /* variable ends in \ */ |
3964 | void *freeIt = NULL; /* Set if it should be freed */ | | 3950 | void *freeIt = NULL; /* Set if it should be freed */ |
3965 | static Boolean errorReported; /* Set true if an error has already | | 3951 | static Boolean errorReported; /* Set true if an error has already |
3966 | * been reported to prevent a plethora | | 3952 | * been reported to prevent a plethora |
3967 | * of messages when recursing */ | | 3953 | * of messages when recursing */ |
3968 | | | 3954 | |
3969 | Buf_Init(&buf, 0); | | 3955 | Buf_Init(&buf, 0); |
3970 | errorReported = FALSE; | | 3956 | errorReported = FALSE; |
3971 | trailingBslash = FALSE; | | 3957 | trailingBslash = FALSE; |
3972 | | | 3958 | |
3973 | while (*str) { | | 3959 | while (*str) { |
3974 | if (*str == '\n' && trailingBslash) | | 3960 | if (*str == '\n' && trailingBslash) |
3975 | Buf_AddByte(&buf, ' '); | | 3961 | Buf_AddByte(&buf, ' '); |
3976 | if (var == NULL && (*str == '$') && (str[1] == '$')) { | | 3962 | if (var == NULL && (*str == '$') && (str[1] == '$')) { |
3977 | /* | | 3963 | /* |
3978 | * A dollar sign may be escaped either with another dollar sign. | | 3964 | * A dollar sign may be escaped either with another dollar sign. |
3979 | * In such a case, we skip over the escape character and store the | | 3965 | * In such a case, we skip over the escape character and store the |
3980 | * dollar sign into the buffer directly. | | 3966 | * dollar sign into the buffer directly. |
3981 | */ | | 3967 | */ |
3982 | if (save_dollars && (flags & VARF_ASSIGN)) | | 3968 | if (save_dollars && (flags & VARF_ASSIGN)) |
3983 | Buf_AddByte(&buf, *str); | | 3969 | Buf_AddByte(&buf, *str); |
3984 | str++; | | 3970 | str++; |
3985 | Buf_AddByte(&buf, *str); | | 3971 | Buf_AddByte(&buf, *str); |
3986 | str++; | | 3972 | str++; |
3987 | } else if (*str != '$') { | | 3973 | } else if (*str != '$') { |
3988 | /* | | 3974 | /* |
3989 | * Skip as many characters as possible -- either to the end of | | 3975 | * Skip as many characters as possible -- either to the end of |
3990 | * the string or to the next dollar sign (variable invocation). | | 3976 | * the string or to the next dollar sign (variable invocation). |
3991 | */ | | 3977 | */ |
3992 | const char *cp; | | 3978 | const char *cp; |
3993 | | | 3979 | |
3994 | for (cp = str++; *str != '$' && *str != '\0'; str++) | | 3980 | for (cp = str++; *str != '$' && *str != '\0'; str++) |
3995 | continue; | | 3981 | continue; |
3996 | Buf_AddBytes(&buf, str - cp, cp); | | 3982 | Buf_AddBytes(&buf, str - cp, cp); |
3997 | } else { | | 3983 | } else { |
3998 | if (var != NULL) { | | 3984 | if (var != NULL) { |
3999 | int expand; | | 3985 | int expand; |
4000 | for (;;) { | | 3986 | for (;;) { |
4001 | if (str[1] == '\0') { | | 3987 | if (str[1] == '\0') { |
4002 | /* A trailing $ is kind of a special case */ | | 3988 | /* A trailing $ is kind of a special case */ |
4003 | Buf_AddByte(&buf, str[0]); | | 3989 | Buf_AddByte(&buf, str[0]); |
4004 | str++; | | 3990 | str++; |
4005 | expand = FALSE; | | 3991 | expand = FALSE; |
4006 | } else if (str[1] != PROPEN && str[1] != BROPEN) { | | 3992 | } else if (str[1] != PROPEN && str[1] != BROPEN) { |
4007 | if (str[1] != *var || strlen(var) > 1) { | | 3993 | if (str[1] != *var || strlen(var) > 1) { |
4008 | Buf_AddBytes(&buf, 2, str); | | 3994 | Buf_AddBytes(&buf, 2, str); |
4009 | str += 2; | | 3995 | str += 2; |
4010 | expand = FALSE; | | 3996 | expand = FALSE; |
4011 | } else | | 3997 | } else |
4012 | expand = TRUE; | | 3998 | expand = TRUE; |
4013 | break; | | 3999 | break; |
4014 | } else { | | 4000 | } else { |
4015 | const char *p; | | 4001 | const char *p; |
4016 | | | 4002 | |
4017 | /* Scan up to the end of the variable name. */ | | 4003 | /* Scan up to the end of the variable name. */ |
4018 | for (p = &str[2]; *p && | | 4004 | for (p = &str[2]; *p && |
4019 | *p != ':' && *p != PRCLOSE && *p != BRCLOSE; p++) | | 4005 | *p != ':' && *p != PRCLOSE && *p != BRCLOSE; p++) |
4020 | if (*p == '$') | | 4006 | if (*p == '$') |
4021 | break; | | 4007 | break; |
4022 | /* | | 4008 | /* |
4023 | * A variable inside the variable. We cannot expand | | 4009 | * A variable inside the variable. We cannot expand |
4024 | * the external variable yet, so we try again with | | 4010 | * the external variable yet, so we try again with |
4025 | * the nested one | | 4011 | * the nested one |
4026 | */ | | 4012 | */ |
4027 | if (*p == '$') { | | 4013 | if (*p == '$') { |
4028 | Buf_AddBytes(&buf, p - str, str); | | 4014 | Buf_AddBytes(&buf, p - str, str); |
4029 | str = p; | | 4015 | str = p; |
4030 | continue; | | 4016 | continue; |
4031 | } | | 4017 | } |
4032 | | | 4018 | |
4033 | if (strncmp(var, str + 2, p - str - 2) != 0 || | | 4019 | if (strncmp(var, str + 2, p - str - 2) != 0 || |
4034 | var[p - str - 2] != '\0') { | | 4020 | var[p - str - 2] != '\0') { |
4035 | /* | | 4021 | /* |
4036 | * Not the variable we want to expand, scan | | 4022 | * Not the variable we want to expand, scan |
4037 | * until the next variable | | 4023 | * until the next variable |
4038 | */ | | 4024 | */ |
4039 | for (;*p != '$' && *p != '\0'; p++) | | 4025 | for (; *p != '$' && *p != '\0'; p++) |
4040 | continue; | | 4026 | continue; |
4041 | Buf_AddBytes(&buf, p - str, str); | | 4027 | Buf_AddBytes(&buf, p - str, str); |
4042 | str = p; | | 4028 | str = p; |
4043 | expand = FALSE; | | 4029 | expand = FALSE; |
4044 | } else | | 4030 | } else |
4045 | expand = TRUE; | | 4031 | expand = TRUE; |
4046 | break; | | 4032 | break; |
4047 | } | | 4033 | } |
4048 | } | | 4034 | } |
4049 | if (!expand) | | 4035 | if (!expand) |
4050 | continue; | | 4036 | continue; |
4051 | } | | 4037 | } |
4052 | | | 4038 | |
4053 | val = Var_Parse(str, ctxt, flags, &length, &freeIt); | | 4039 | val = Var_Parse(str, ctxt, flags, &length, &freeIt); |
4054 | | | 4040 | |
4055 | /* | | 4041 | /* |
4056 | * When we come down here, val should either point to the | | 4042 | * When we come down here, val should either point to the |
4057 | * value of this variable, suitably modified, or be NULL. | | 4043 | * value of this variable, suitably modified, or be NULL. |
4058 | * Length should be the total length of the potential | | 4044 | * Length should be the total length of the potential |
4059 | * variable invocation (from $ to end character...) | | 4045 | * variable invocation (from $ to end character...) |
4060 | */ | | 4046 | */ |
4061 | if (val == var_Error || val == varNoError) { | | 4047 | if (val == var_Error || val == varNoError) { |
4062 | /* | | 4048 | /* |
4063 | * If performing old-time variable substitution, skip over | | 4049 | * If performing old-time variable substitution, skip over |
4064 | * the variable and continue with the substitution. Otherwise, | | 4050 | * the variable and continue with the substitution. Otherwise, |
4065 | * store the dollar sign and advance str so we continue with | | 4051 | * store the dollar sign and advance str so we continue with |
4066 | * the string... | | 4052 | * the string... |
4067 | */ | | 4053 | */ |
4068 | if (oldVars) { | | 4054 | if (oldVars) { |
4069 | str += length; | | 4055 | str += length; |
4070 | } else if ((flags & VARF_UNDEFERR) || val == var_Error) { | | 4056 | } else if ((flags & VARF_UNDEFERR) || val == var_Error) { |
4071 | /* | | 4057 | /* |
4072 | * If variable is undefined, complain and skip the | | 4058 | * If variable is undefined, complain and skip the |
4073 | * variable. The complaint will stop us from doing anything | | 4059 | * variable. The complaint will stop us from doing anything |
4074 | * when the file is parsed. | | 4060 | * when the file is parsed. |
4075 | */ | | 4061 | */ |
4076 | if (!errorReported) { | | 4062 | if (!errorReported) { |
4077 | Parse_Error(PARSE_FATAL, "Undefined variable \"%.*s\"", | | 4063 | Parse_Error(PARSE_FATAL, "Undefined variable \"%.*s\"", |
4078 | length, str); | | 4064 | length, str); |
4079 | } | | 4065 | } |
4080 | str += length; | | 4066 | str += length; |
4081 | errorReported = TRUE; | | 4067 | errorReported = TRUE; |
4082 | } else { | | 4068 | } else { |
4083 | Buf_AddByte(&buf, *str); | | 4069 | Buf_AddByte(&buf, *str); |
4084 | str += 1; | | 4070 | str += 1; |
4085 | } | | 4071 | } |
4086 | } else { | | 4072 | } else { |
4087 | /* | | 4073 | /* |
4088 | * We've now got a variable structure to store in. But first, | | 4074 | * We've now got a variable structure to store in. But first, |
4089 | * advance the string pointer. | | 4075 | * advance the string pointer. |
4090 | */ | | 4076 | */ |
4091 | str += length; | | 4077 | str += length; |
4092 | | | 4078 | |
4093 | /* | | 4079 | /* |
4094 | * Copy all the characters from the variable value straight | | 4080 | * Copy all the characters from the variable value straight |
4095 | * into the new string. | | 4081 | * into the new string. |
4096 | */ | | 4082 | */ |
4097 | length = strlen(val); | | 4083 | length = strlen(val); |
4098 | Buf_AddBytes(&buf, length, val); | | 4084 | Buf_AddBytes(&buf, length, val); |
4099 | trailingBslash = length > 0 && val[length - 1] == '\\'; | | 4085 | trailingBslash = length > 0 && val[length - 1] == '\\'; |
4100 | } | | 4086 | } |
4101 | free(freeIt); | | 4087 | free(freeIt); |
4102 | freeIt = NULL; | | 4088 | freeIt = NULL; |
4103 | } | | 4089 | } |
4104 | } | | 4090 | } |
4105 | | | 4091 | |
4106 | return Buf_DestroyCompact(&buf); | | 4092 | return Buf_DestroyCompact(&buf); |
4107 | } | | 4093 | } |
4108 | | | 4094 | |
4109 | /*- | | 4095 | /*- |
4110 | *----------------------------------------------------------------------- | | 4096 | *----------------------------------------------------------------------- |
4111 | * Var_Init -- | | 4097 | * Var_Init -- |
4112 | * Initialize the module | | 4098 | * Initialize the module |
4113 | * | | 4099 | * |
4114 | * Results: | | 4100 | * Results: |
4115 | * None | | 4101 | * None |
4116 | * | | 4102 | * |
4117 | * Side Effects: | | 4103 | * Side Effects: |
4118 | * The VAR_CMD and VAR_GLOBAL contexts are created | | 4104 | * The VAR_CMD and VAR_GLOBAL contexts are created |
4119 | *----------------------------------------------------------------------- | | 4105 | *----------------------------------------------------------------------- |
4120 | */ | | 4106 | */ |
4121 | void | | 4107 | void |
4122 | Var_Init(void) | | 4108 | Var_Init(void) |
4123 | { | | 4109 | { |
4124 | VAR_INTERNAL = Targ_NewGN("Internal"); | | 4110 | VAR_INTERNAL = Targ_NewGN("Internal"); |
4125 | VAR_GLOBAL = Targ_NewGN("Global"); | | 4111 | VAR_GLOBAL = Targ_NewGN("Global"); |
4126 | VAR_CMD = Targ_NewGN("Command"); | | 4112 | VAR_CMD = Targ_NewGN("Command"); |
4127 | } | | 4113 | } |
4128 | | | 4114 | |
4129 | | | 4115 | |
4130 | void | | 4116 | void |
4131 | Var_End(void) | | 4117 | Var_End(void) |
4132 | { | | 4118 | { |
4133 | } | | 4119 | } |
4134 | | | 4120 | |
4135 | | | 4121 | |
4136 | /****************** PRINT DEBUGGING INFO *****************/ | | 4122 | /****************** PRINT DEBUGGING INFO *****************/ |
4137 | static void | | 4123 | static void |
4138 | VarPrintVar(void *vp, void *data MAKE_ATTR_UNUSED) | | 4124 | VarPrintVar(void *vp, void *data MAKE_ATTR_UNUSED) |
4139 | { | | 4125 | { |
4140 | Var *v = (Var *)vp; | | 4126 | Var *v = (Var *)vp; |
4141 | fprintf(debug_file, "%-16s = %s\n", v->name, Buf_GetAll(&v->val, NULL)); | | 4127 | fprintf(debug_file, "%-16s = %s\n", v->name, Buf_GetAll(&v->val, NULL)); |
4142 | } | | 4128 | } |
4143 | | | 4129 | |
4144 | /*- | | 4130 | /*- |
4145 | *----------------------------------------------------------------------- | | 4131 | *----------------------------------------------------------------------- |
4146 | * Var_Dump -- | | 4132 | * Var_Dump -- |
4147 | * print all variables in a context | | 4133 | * print all variables in a context |
4148 | *----------------------------------------------------------------------- | | 4134 | *----------------------------------------------------------------------- |
4149 | */ | | 4135 | */ |
4150 | void | | 4136 | void |
4151 | Var_Dump(GNode *ctxt) | | 4137 | Var_Dump(GNode *ctxt) |
4152 | { | | 4138 | { |
4153 | Hash_ForEach(&ctxt->context, VarPrintVar, NULL); | | 4139 | Hash_ForEach(&ctxt->context, VarPrintVar, NULL); |
4154 | } | | 4140 | } |