| @@ -1,2345 +1,2345 @@ | | | @@ -1,2345 +1,2345 @@ |
1 | /* $NetBSD: var.c,v 1.309 2020/07/26 10:11:04 rillig Exp $ */ | | 1 | /* $NetBSD: var.c,v 1.310 2020/07/26 12:19:37 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 1.309 2020/07/26 10:11:04 rillig Exp $"; | | 72 | static char rcsid[] = "$NetBSD: var.c,v 1.310 2020/07/26 12:19:37 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 1.309 2020/07/26 10:11:04 rillig Exp $"); | | 79 | __RCSID("$NetBSD: var.c,v 1.310 2020/07/26 12:19:37 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. | | 91 | * yet exist. |
92 | * | | 92 | * |
93 | * Var_Append Append more characters to an existing variable | | 93 | * Var_Append Append more characters to an existing variable |
94 | * in the given context. The variable needn't | | 94 | * in the given context. The variable needn't |
95 | * exist already -- it will be created if it doesn't. | | 95 | * exist already -- it will be created if it doesn't. |
96 | * A space is placed between the old value and the | | 96 | * A space is placed between the old value and the |
97 | * new one. | | 97 | * new one. |
98 | * | | 98 | * |
99 | * Var_Exists See if a variable exists. | | 99 | * Var_Exists See if a variable exists. |
100 | * | | 100 | * |
101 | * Var_Value Return the value of a variable in a context or | | 101 | * Var_Value Return the value of a variable in a context or |
102 | * NULL if the variable is undefined. | | 102 | * NULL if the variable is undefined. |
103 | * | | 103 | * |
104 | * Var_Subst Substitute either a single variable or all | | 104 | * Var_Subst Substitute either a single variable or all |
105 | * variables in a string, using the given context. | | 105 | * variables in a string, using the given context. |
106 | * | | 106 | * |
107 | * Var_Parse Parse a variable expansion from a string and | | 107 | * Var_Parse Parse a variable expansion from a string and |
108 | * return the result and the number of characters | | 108 | * return the result and the number of characters |
109 | * consumed. | | 109 | * consumed. |
110 | * | | 110 | * |
111 | * Var_Delete Delete a variable in a context. | | 111 | * Var_Delete Delete a variable in a context. |
112 | * | | 112 | * |
113 | * Var_Init Initialize this module. | | 113 | * Var_Init Initialize this module. |
114 | * | | 114 | * |
115 | * Debugging: | | 115 | * Debugging: |
116 | * Var_Dump Print out all variables defined in the given | | 116 | * Var_Dump Print out all variables defined in the given |
117 | * context. | | 117 | * context. |
118 | * | | 118 | * |
119 | * XXX: There's a lot of duplication in these functions. | | 119 | * XXX: There's a lot of duplication in these functions. |
120 | */ | | 120 | */ |
121 | | | 121 | |
122 | #include <sys/stat.h> | | 122 | #include <sys/stat.h> |
123 | #ifndef NO_REGEX | | 123 | #ifndef NO_REGEX |
124 | #include <sys/types.h> | | 124 | #include <sys/types.h> |
125 | #include <regex.h> | | 125 | #include <regex.h> |
126 | #endif | | 126 | #endif |
127 | #include <ctype.h> | | 127 | #include <ctype.h> |
128 | #include <inttypes.h> | | 128 | #include <inttypes.h> |
129 | #include <limits.h> | | 129 | #include <limits.h> |
130 | #include <stdlib.h> | | 130 | #include <stdlib.h> |
131 | #include <time.h> | | 131 | #include <time.h> |
132 | | | 132 | |
133 | #include "make.h" | | 133 | #include "make.h" |
134 | #include "buf.h" | | 134 | #include "buf.h" |
135 | #include "dir.h" | | 135 | #include "dir.h" |
136 | #include "job.h" | | 136 | #include "job.h" |
137 | #include "metachar.h" | | 137 | #include "metachar.h" |
138 | | | 138 | |
139 | /* | | 139 | /* |
140 | * This lets us tell if we have replaced the original environ | | 140 | * This lets us tell if we have replaced the original environ |
141 | * (which we cannot free). | | 141 | * (which we cannot free). |
142 | */ | | 142 | */ |
143 | char **savedEnv = NULL; | | 143 | char **savedEnv = NULL; |
144 | | | 144 | |
145 | /* | | 145 | /* |
146 | * This is a harmless return value for Var_Parse that can be used by Var_Subst | | 146 | * This is a harmless return value for Var_Parse that can be used by Var_Subst |
147 | * to determine if there was an error in parsing -- easier than returning | | 147 | * to determine if there was an error in parsing -- easier than returning |
148 | * a flag, as things outside this module don't give a hoot. | | 148 | * a flag, as things outside this module don't give a hoot. |
149 | */ | | 149 | */ |
150 | char var_Error[] = ""; | | 150 | char var_Error[] = ""; |
151 | | | 151 | |
152 | /* | | 152 | /* |
153 | * Similar to var_Error, but returned when the 'VARE_UNDEFERR' flag for | | 153 | * Similar to var_Error, but returned when the 'VARE_UNDEFERR' flag for |
154 | * Var_Parse is not set. Why not just use a constant? Well, GCC likes | | 154 | * Var_Parse is not set. Why not just use a constant? Well, GCC likes |
155 | * to condense identical string instances... | | 155 | * to condense identical string instances... |
156 | */ | | 156 | */ |
157 | static char varNoError[] = ""; | | 157 | static char varNoError[] = ""; |
158 | | | 158 | |
159 | /* | | 159 | /* |
160 | * Traditionally we consume $$ during := like any other expansion. | | 160 | * Traditionally we consume $$ during := like any other expansion. |
161 | * Other make's do not. | | 161 | * Other make's do not. |
162 | * This knob allows controlling the behavior. | | 162 | * This knob allows controlling the behavior. |
163 | * FALSE to consume $$ during := assignment. | | 163 | * FALSE to consume $$ during := assignment. |
164 | * TRUE to preserve $$ during := assignment. | | 164 | * TRUE to preserve $$ during := assignment. |
165 | */ | | 165 | */ |
166 | #define SAVE_DOLLARS ".MAKE.SAVE_DOLLARS" | | 166 | #define SAVE_DOLLARS ".MAKE.SAVE_DOLLARS" |
167 | static Boolean save_dollars = TRUE; | | 167 | static Boolean save_dollars = TRUE; |
168 | | | 168 | |
169 | /* | | 169 | /* |
170 | * Internally, variables are contained in four different contexts. | | 170 | * Internally, variables are contained in four different contexts. |
171 | * 1) the environment. They cannot be changed. If an environment | | 171 | * 1) the environment. They cannot be changed. If an environment |
172 | * variable is appended to, the result is placed in the global | | 172 | * variable is appended to, the result is placed in the global |
173 | * context. | | 173 | * context. |
174 | * 2) the global context. Variables set in the Makefile are located in | | 174 | * 2) the global context. Variables set in the Makefile are located in |
175 | * the global context. | | 175 | * the global context. |
176 | * 3) the command-line context. All variables set on the command line | | 176 | * 3) the command-line context. All variables set on the command line |
177 | * are placed in this context. They are UNALTERABLE once placed here. | | 177 | * are placed in this context. They are UNALTERABLE once placed here. |
178 | * 4) the local context. Each target has associated with it a context | | 178 | * 4) the local context. Each target has associated with it a context |
179 | * list. On this list are located the structures describing such | | 179 | * list. On this list are located the structures describing such |
180 | * local variables as $(@) and $(*) | | 180 | * local variables as $(@) and $(*) |
181 | * The four contexts are searched in the reverse order from which they are | | 181 | * The four contexts are searched in the reverse order from which they are |
182 | * listed (but see checkEnvFirst). | | 182 | * listed (but see checkEnvFirst). |
183 | */ | | 183 | */ |
184 | GNode *VAR_INTERNAL; /* variables from make itself */ | | 184 | GNode *VAR_INTERNAL; /* variables from make itself */ |
185 | GNode *VAR_GLOBAL; /* variables from the makefile */ | | 185 | GNode *VAR_GLOBAL; /* variables from the makefile */ |
186 | GNode *VAR_CMD; /* variables defined on the command-line */ | | 186 | GNode *VAR_CMD; /* variables defined on the command-line */ |
187 | | | 187 | |
188 | typedef enum { | | 188 | typedef enum { |
189 | FIND_CMD = 0x01, /* look in VAR_CMD when searching */ | | 189 | FIND_CMD = 0x01, /* look in VAR_CMD when searching */ |
190 | FIND_GLOBAL = 0x02, /* look in VAR_GLOBAL as well */ | | 190 | FIND_GLOBAL = 0x02, /* look in VAR_GLOBAL as well */ |
191 | FIND_ENV = 0x04 /* look in the environment also */ | | 191 | FIND_ENV = 0x04 /* look in the environment also */ |
192 | } VarFindFlags; | | 192 | } VarFindFlags; |
193 | | | 193 | |
194 | typedef enum { | | 194 | typedef enum { |
195 | VAR_IN_USE = 0x01, /* Variable's value is currently being used | | 195 | VAR_IN_USE = 0x01, /* Variable's value is currently being used |
196 | * by Var_Parse or Var_Subst. | | 196 | * by Var_Parse or Var_Subst. |
197 | * Used to avoid endless recursion */ | | 197 | * Used to avoid endless recursion */ |
198 | VAR_FROM_ENV = 0x02, /* Variable comes from the environment */ | | 198 | VAR_FROM_ENV = 0x02, /* Variable comes from the environment */ |
199 | VAR_JUNK = 0x04, /* Variable is a junk variable that | | 199 | VAR_JUNK = 0x04, /* Variable is a junk variable that |
200 | * should be destroyed when done with | | 200 | * should be destroyed when done with |
201 | * it. Used by Var_Parse for undefined, | | 201 | * it. Used by Var_Parse for undefined, |
202 | * modified variables */ | | 202 | * modified variables */ |
203 | VAR_KEEP = 0x08, /* Variable is VAR_JUNK, but we found | | 203 | VAR_KEEP = 0x08, /* Variable is VAR_JUNK, but we found |
204 | * a use for it in some modifier and | | 204 | * a use for it in some modifier and |
205 | * the value is therefore valid */ | | 205 | * the value is therefore valid */ |
206 | VAR_EXPORTED = 0x10, /* Variable is exported */ | | 206 | VAR_EXPORTED = 0x10, /* Variable is exported */ |
207 | VAR_REEXPORT = 0x20, /* Indicate if var needs re-export. | | 207 | VAR_REEXPORT = 0x20, /* Indicate if var needs re-export. |
208 | * This would be true if it contains $'s */ | | 208 | * This would be true if it contains $'s */ |
209 | VAR_FROM_CMD = 0x40 /* Variable came from command line */ | | 209 | VAR_FROM_CMD = 0x40 /* Variable came from command line */ |
210 | } Var_Flags; | | 210 | } Var_Flags; |
211 | | | 211 | |
212 | typedef struct Var { | | 212 | typedef struct Var { |
213 | char *name; /* the variable's name */ | | 213 | char *name; /* the variable's name */ |
214 | Buffer val; /* its value */ | | 214 | Buffer val; /* its value */ |
215 | Var_Flags flags; /* miscellaneous status flags */ | | 215 | Var_Flags flags; /* miscellaneous status flags */ |
216 | } Var; | | 216 | } Var; |
217 | | | 217 | |
218 | /* | | 218 | /* |
219 | * Exporting vars is expensive so skip it if we can | | 219 | * Exporting vars is expensive so skip it if we can |
220 | */ | | 220 | */ |
221 | typedef enum { | | 221 | typedef enum { |
222 | VAR_EXPORTED_NONE, | | 222 | VAR_EXPORTED_NONE, |
223 | VAR_EXPORTED_YES, | | 223 | VAR_EXPORTED_YES, |
224 | VAR_EXPORTED_ALL | | 224 | VAR_EXPORTED_ALL |
225 | } VarExportedMode; | | 225 | } VarExportedMode; |
226 | static VarExportedMode var_exportedVars = VAR_EXPORTED_NONE; | | 226 | static VarExportedMode var_exportedVars = VAR_EXPORTED_NONE; |
227 | | | 227 | |
228 | typedef enum { | | 228 | typedef enum { |
229 | /* | | 229 | /* |
230 | * We pass this to Var_Export when doing the initial export | | 230 | * We pass this to Var_Export when doing the initial export |
231 | * or after updating an exported var. | | 231 | * or after updating an exported var. |
232 | */ | | 232 | */ |
233 | VAR_EXPORT_PARENT = 0x01, | | 233 | VAR_EXPORT_PARENT = 0x01, |
234 | /* | | 234 | /* |
235 | * We pass this to Var_Export1 to tell it to leave the value alone. | | 235 | * We pass this to Var_Export1 to tell it to leave the value alone. |
236 | */ | | 236 | */ |
237 | VAR_EXPORT_LITERAL = 0x02 | | 237 | VAR_EXPORT_LITERAL = 0x02 |
238 | } VarExportFlags; | | 238 | } VarExportFlags; |
239 | | | 239 | |
240 | /* Flags for pattern matching in the :S and :C modifiers */ | | 240 | /* Flags for pattern matching in the :S and :C modifiers */ |
241 | typedef enum { | | 241 | typedef enum { |
242 | VARP_SUB_GLOBAL = 0x01, /* Apply substitution globally */ | | 242 | VARP_SUB_GLOBAL = 0x01, /* Apply substitution globally */ |
243 | VARP_SUB_ONE = 0x02, /* Apply substitution to one word */ | | 243 | VARP_SUB_ONE = 0x02, /* Apply substitution to one word */ |
244 | VARP_SUB_MATCHED = 0x04, /* There was a match */ | | 244 | VARP_SUB_MATCHED = 0x04, /* There was a match */ |
245 | VARP_ANCHOR_START = 0x08, /* Match at start of word */ | | 245 | VARP_ANCHOR_START = 0x08, /* Match at start of word */ |
246 | VARP_ANCHOR_END = 0x10 /* Match at end of word */ | | 246 | VARP_ANCHOR_END = 0x10 /* Match at end of word */ |
247 | } VarPatternFlags; | | 247 | } VarPatternFlags; |
248 | | | 248 | |
249 | typedef enum { | | 249 | typedef enum { |
250 | VAR_NO_EXPORT = 0x01 /* do not export */ | | 250 | VAR_NO_EXPORT = 0x01 /* do not export */ |
251 | } VarSet_Flags; | | 251 | } VarSet_Flags; |
252 | | | 252 | |
253 | #define BROPEN '{' | | 253 | #define BROPEN '{' |
254 | #define BRCLOSE '}' | | 254 | #define BRCLOSE '}' |
255 | #define PROPEN '(' | | 255 | #define PROPEN '(' |
256 | #define PRCLOSE ')' | | 256 | #define PRCLOSE ')' |
257 | | | 257 | |
258 | /*- | | 258 | /*- |
259 | *----------------------------------------------------------------------- | | 259 | *----------------------------------------------------------------------- |
260 | * VarFind -- | | 260 | * VarFind -- |
261 | * Find the given variable in the given context and any other contexts | | 261 | * Find the given variable in the given context and any other contexts |
262 | * indicated. | | 262 | * indicated. |
263 | * | | 263 | * |
264 | * Input: | | 264 | * Input: |
265 | * name name to find | | 265 | * name name to find |
266 | * ctxt context in which to find it | | 266 | * ctxt context in which to find it |
267 | * flags FIND_GLOBAL look in VAR_GLOBAL as well | | 267 | * flags FIND_GLOBAL look in VAR_GLOBAL as well |
268 | * FIND_CMD look in VAR_CMD as well | | 268 | * FIND_CMD look in VAR_CMD as well |
269 | * FIND_ENV look in the environment as well | | 269 | * FIND_ENV look in the environment as well |
270 | * | | 270 | * |
271 | * Results: | | 271 | * Results: |
272 | * A pointer to the structure describing the desired variable or | | 272 | * A pointer to the structure describing the desired variable or |
273 | * NULL if the variable does not exist. | | 273 | * NULL if the variable does not exist. |
274 | * | | 274 | * |
275 | * Side Effects: | | 275 | * Side Effects: |
276 | * None | | 276 | * None |
277 | *----------------------------------------------------------------------- | | 277 | *----------------------------------------------------------------------- |
278 | */ | | 278 | */ |
279 | static Var * | | 279 | static Var * |
280 | VarFind(const char *name, GNode *ctxt, VarFindFlags flags) | | 280 | VarFind(const char *name, GNode *ctxt, VarFindFlags flags) |
281 | { | | 281 | { |
282 | Hash_Entry *var; | | 282 | Hash_Entry *var; |
283 | Var *v; | | 283 | Var *v; |
284 | | | 284 | |
285 | /* | | 285 | /* |
286 | * If the variable name begins with a '.', it could very well be one of | | 286 | * If the variable name begins with a '.', it could very well be one of |
287 | * the local ones. We check the name against all the local variables | | 287 | * the local ones. We check the name against all the local variables |
288 | * and substitute the short version in for 'name' if it matches one of | | 288 | * and substitute the short version in for 'name' if it matches one of |
289 | * them. | | 289 | * them. |
290 | */ | | 290 | */ |
291 | if (*name == '.' && isupper((unsigned char) name[1])) { | | 291 | if (*name == '.' && isupper((unsigned char) name[1])) { |
292 | switch (name[1]) { | | 292 | switch (name[1]) { |
293 | case 'A': | | 293 | case 'A': |
294 | if (strcmp(name, ".ALLSRC") == 0) | | 294 | if (strcmp(name, ".ALLSRC") == 0) |
295 | name = ALLSRC; | | 295 | name = ALLSRC; |
296 | if (strcmp(name, ".ARCHIVE") == 0) | | 296 | if (strcmp(name, ".ARCHIVE") == 0) |
297 | name = ARCHIVE; | | 297 | name = ARCHIVE; |
298 | break; | | 298 | break; |
299 | case 'I': | | 299 | case 'I': |
300 | if (strcmp(name, ".IMPSRC") == 0) | | 300 | if (strcmp(name, ".IMPSRC") == 0) |
301 | name = IMPSRC; | | 301 | name = IMPSRC; |
302 | break; | | 302 | break; |
303 | case 'M': | | 303 | case 'M': |
304 | if (strcmp(name, ".MEMBER") == 0) | | 304 | if (strcmp(name, ".MEMBER") == 0) |
305 | name = MEMBER; | | 305 | name = MEMBER; |
306 | break; | | 306 | break; |
307 | case 'O': | | 307 | case 'O': |
308 | if (strcmp(name, ".OODATE") == 0) | | 308 | if (strcmp(name, ".OODATE") == 0) |
309 | name = OODATE; | | 309 | name = OODATE; |
310 | break; | | 310 | break; |
311 | case 'P': | | 311 | case 'P': |
312 | if (strcmp(name, ".PREFIX") == 0) | | 312 | if (strcmp(name, ".PREFIX") == 0) |
313 | name = PREFIX; | | 313 | name = PREFIX; |
314 | break; | | 314 | break; |
315 | case 'T': | | 315 | case 'T': |
316 | if (strcmp(name, ".TARGET") == 0) | | 316 | if (strcmp(name, ".TARGET") == 0) |
317 | name = TARGET; | | 317 | name = TARGET; |
318 | break; | | 318 | break; |
319 | } | | 319 | } |
320 | } | | 320 | } |
321 | | | 321 | |
322 | #ifdef notyet | | 322 | #ifdef notyet |
323 | /* for compatibility with gmake */ | | 323 | /* for compatibility with gmake */ |
324 | if (name[0] == '^' && name[1] == '\0') | | 324 | if (name[0] == '^' && name[1] == '\0') |
325 | name = ALLSRC; | | 325 | name = ALLSRC; |
326 | #endif | | 326 | #endif |
327 | | | 327 | |
328 | /* | | 328 | /* |
329 | * First look for the variable in the given context. If it's not there, | | 329 | * First look for the variable in the given context. If it's not there, |
330 | * look for it in VAR_CMD, VAR_GLOBAL and the environment, in that order, | | 330 | * look for it in VAR_CMD, VAR_GLOBAL and the environment, in that order, |
331 | * depending on the FIND_* flags in 'flags' | | 331 | * depending on the FIND_* flags in 'flags' |
332 | */ | | 332 | */ |
333 | var = Hash_FindEntry(&ctxt->context, name); | | 333 | var = Hash_FindEntry(&ctxt->context, name); |
334 | | | 334 | |
335 | if (var == NULL && (flags & FIND_CMD) && ctxt != VAR_CMD) { | | 335 | if (var == NULL && (flags & FIND_CMD) && ctxt != VAR_CMD) { |
336 | var = Hash_FindEntry(&VAR_CMD->context, name); | | 336 | var = Hash_FindEntry(&VAR_CMD->context, name); |
337 | } | | 337 | } |
338 | if (!checkEnvFirst && var == NULL && (flags & FIND_GLOBAL) && | | 338 | if (!checkEnvFirst && var == NULL && (flags & FIND_GLOBAL) && |
339 | ctxt != VAR_GLOBAL) | | 339 | ctxt != VAR_GLOBAL) |
340 | { | | 340 | { |
341 | var = Hash_FindEntry(&VAR_GLOBAL->context, name); | | 341 | var = Hash_FindEntry(&VAR_GLOBAL->context, name); |
342 | if (var == NULL && ctxt != VAR_INTERNAL) { | | 342 | if (var == NULL && ctxt != VAR_INTERNAL) { |
343 | /* VAR_INTERNAL is subordinate to VAR_GLOBAL */ | | 343 | /* VAR_INTERNAL is subordinate to VAR_GLOBAL */ |
344 | var = Hash_FindEntry(&VAR_INTERNAL->context, name); | | 344 | var = Hash_FindEntry(&VAR_INTERNAL->context, name); |
345 | } | | 345 | } |
346 | } | | 346 | } |
347 | if (var == NULL && (flags & FIND_ENV)) { | | 347 | if (var == NULL && (flags & FIND_ENV)) { |
348 | char *env; | | 348 | char *env; |
349 | | | 349 | |
350 | if ((env = getenv(name)) != NULL) { | | 350 | if ((env = getenv(name)) != NULL) { |
351 | int len; | | 351 | int len; |
352 | | | 352 | |
353 | v = bmake_malloc(sizeof(Var)); | | 353 | v = bmake_malloc(sizeof(Var)); |
354 | v->name = bmake_strdup(name); | | 354 | v->name = bmake_strdup(name); |
355 | | | 355 | |
356 | len = strlen(env); | | 356 | len = strlen(env); |
357 | | | 357 | |
358 | Buf_Init(&v->val, len + 1); | | 358 | Buf_Init(&v->val, len + 1); |
359 | Buf_AddBytes(&v->val, len, env); | | 359 | Buf_AddBytes(&v->val, len, env); |
360 | | | 360 | |
361 | v->flags = VAR_FROM_ENV; | | 361 | v->flags = VAR_FROM_ENV; |
362 | return v; | | 362 | return v; |
363 | } else if (checkEnvFirst && (flags & FIND_GLOBAL) && | | 363 | } else if (checkEnvFirst && (flags & FIND_GLOBAL) && |
364 | ctxt != VAR_GLOBAL) | | 364 | ctxt != VAR_GLOBAL) |
365 | { | | 365 | { |
366 | var = Hash_FindEntry(&VAR_GLOBAL->context, name); | | 366 | var = Hash_FindEntry(&VAR_GLOBAL->context, name); |
367 | if (var == NULL && ctxt != VAR_INTERNAL) { | | 367 | if (var == NULL && ctxt != VAR_INTERNAL) { |
368 | var = Hash_FindEntry(&VAR_INTERNAL->context, name); | | 368 | var = Hash_FindEntry(&VAR_INTERNAL->context, name); |
369 | } | | 369 | } |
370 | if (var == NULL) { | | 370 | if (var == NULL) { |
371 | return NULL; | | 371 | return NULL; |
372 | } else { | | 372 | } else { |
373 | return (Var *)Hash_GetValue(var); | | 373 | return (Var *)Hash_GetValue(var); |
374 | } | | 374 | } |
375 | } else { | | 375 | } else { |
376 | return NULL; | | 376 | return NULL; |
377 | } | | 377 | } |
378 | } else if (var == NULL) { | | 378 | } else if (var == NULL) { |
379 | return NULL; | | 379 | return NULL; |
380 | } else { | | 380 | } else { |
381 | return (Var *)Hash_GetValue(var); | | 381 | return (Var *)Hash_GetValue(var); |
382 | } | | 382 | } |
383 | } | | 383 | } |
384 | | | 384 | |
385 | /*- | | 385 | /*- |
386 | *----------------------------------------------------------------------- | | 386 | *----------------------------------------------------------------------- |
387 | * VarFreeEnv -- | | 387 | * VarFreeEnv -- |
388 | * If the variable is an environment variable, free it | | 388 | * If the variable is an environment variable, free it |
389 | * | | 389 | * |
390 | * Input: | | 390 | * Input: |
391 | * v the variable | | 391 | * v the variable |
392 | * destroy true if the value buffer should be destroyed. | | 392 | * destroy true if the value buffer should be destroyed. |
393 | * | | 393 | * |
394 | * Results: | | 394 | * Results: |
395 | * 1 if it is an environment variable 0 ow. | | 395 | * 1 if it is an environment variable 0 ow. |
396 | * | | 396 | * |
397 | * Side Effects: | | 397 | * Side Effects: |
398 | * The variable is free'ed if it is an environent variable. | | 398 | * The variable is free'ed if it is an environent variable. |
399 | *----------------------------------------------------------------------- | | 399 | *----------------------------------------------------------------------- |
400 | */ | | 400 | */ |
401 | static Boolean | | 401 | static Boolean |
402 | VarFreeEnv(Var *v, Boolean destroy) | | 402 | VarFreeEnv(Var *v, Boolean destroy) |
403 | { | | 403 | { |
404 | if (!(v->flags & VAR_FROM_ENV)) | | 404 | if (!(v->flags & VAR_FROM_ENV)) |
405 | return FALSE; | | 405 | return FALSE; |
406 | free(v->name); | | 406 | free(v->name); |
407 | Buf_Destroy(&v->val, destroy); | | 407 | Buf_Destroy(&v->val, destroy); |
408 | free(v); | | 408 | free(v); |
409 | return TRUE; | | 409 | return TRUE; |
410 | } | | 410 | } |
411 | | | 411 | |
412 | /*- | | 412 | /*- |
413 | *----------------------------------------------------------------------- | | 413 | *----------------------------------------------------------------------- |
414 | * VarAdd -- | | 414 | * VarAdd -- |
415 | * Add a new variable of name name and value val to the given context | | 415 | * Add a new variable of name name and value val to the given context |
416 | * | | 416 | * |
417 | * Input: | | 417 | * Input: |
418 | * name name of variable to add | | 418 | * name name of variable to add |
419 | * val value to set it to | | 419 | * val value to set it to |
420 | * ctxt context in which to set it | | 420 | * ctxt context in which to set it |
421 | * | | 421 | * |
422 | * Side Effects: | | 422 | * Side Effects: |
423 | * The new variable is placed at the front of the given context | | 423 | * The new variable is placed at the front of the given context |
424 | * The name and val arguments are duplicated so they may | | 424 | * The name and val arguments are duplicated so they may |
425 | * safely be freed. | | 425 | * safely be freed. |
426 | *----------------------------------------------------------------------- | | 426 | *----------------------------------------------------------------------- |
427 | */ | | 427 | */ |
428 | static void | | 428 | static void |
429 | VarAdd(const char *name, const char *val, GNode *ctxt) | | 429 | VarAdd(const char *name, const char *val, GNode *ctxt) |
430 | { | | 430 | { |
431 | Var *v; | | 431 | Var *v; |
432 | int len; | | 432 | int len; |
433 | Hash_Entry *h; | | 433 | Hash_Entry *h; |
434 | | | 434 | |
435 | v = bmake_malloc(sizeof(Var)); | | 435 | v = bmake_malloc(sizeof(Var)); |
436 | | | 436 | |
437 | len = val != NULL ? strlen(val) : 0; | | 437 | len = val != NULL ? strlen(val) : 0; |
438 | Buf_Init(&v->val, len + 1); | | 438 | Buf_Init(&v->val, len + 1); |
439 | Buf_AddBytes(&v->val, len, val); | | 439 | Buf_AddBytes(&v->val, len, val); |
440 | | | 440 | |
441 | v->flags = 0; | | 441 | v->flags = 0; |
442 | | | 442 | |
443 | h = Hash_CreateEntry(&ctxt->context, name, NULL); | | 443 | h = Hash_CreateEntry(&ctxt->context, name, NULL); |
444 | Hash_SetValue(h, v); | | 444 | Hash_SetValue(h, v); |
445 | v->name = h->name; | | 445 | v->name = h->name; |
446 | if (DEBUG(VAR) && !(ctxt->flags & INTERNAL)) { | | 446 | if (DEBUG(VAR) && !(ctxt->flags & INTERNAL)) { |
447 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); | | 447 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); |
448 | } | | 448 | } |
449 | } | | 449 | } |
450 | | | 450 | |
451 | /*- | | 451 | /*- |
452 | *----------------------------------------------------------------------- | | 452 | *----------------------------------------------------------------------- |
453 | * Var_Delete -- | | 453 | * Var_Delete -- |
454 | * Remove a variable from a context. | | 454 | * Remove a variable from a context. |
455 | * | | 455 | * |
456 | * Side Effects: | | 456 | * Side Effects: |
457 | * The Var structure is removed and freed. | | 457 | * The Var structure is removed and freed. |
458 | * | | 458 | * |
459 | *----------------------------------------------------------------------- | | 459 | *----------------------------------------------------------------------- |
460 | */ | | 460 | */ |
461 | void | | 461 | void |
462 | Var_Delete(const char *name, GNode *ctxt) | | 462 | Var_Delete(const char *name, GNode *ctxt) |
463 | { | | 463 | { |
464 | Hash_Entry *ln; | | 464 | Hash_Entry *ln; |
465 | char *cp; | | 465 | char *cp; |
466 | | | 466 | |
467 | if (strchr(name, '$') != NULL) { | | 467 | if (strchr(name, '$') != NULL) { |
468 | cp = Var_Subst(NULL, name, VAR_GLOBAL, VARE_WANTRES); | | 468 | cp = Var_Subst(NULL, name, VAR_GLOBAL, VARE_WANTRES); |
469 | } else { | | 469 | } else { |
470 | cp = UNCONST(name); | | 470 | cp = UNCONST(name); |
471 | } | | 471 | } |
472 | ln = Hash_FindEntry(&ctxt->context, cp); | | 472 | ln = Hash_FindEntry(&ctxt->context, cp); |
473 | if (DEBUG(VAR)) { | | 473 | if (DEBUG(VAR)) { |
474 | fprintf(debug_file, "%s:delete %s%s\n", | | 474 | fprintf(debug_file, "%s:delete %s%s\n", |
475 | ctxt->name, cp, ln ? "" : " (not found)"); | | 475 | ctxt->name, cp, ln ? "" : " (not found)"); |
476 | } | | 476 | } |
477 | if (cp != name) | | 477 | if (cp != name) |
478 | free(cp); | | 478 | free(cp); |
479 | if (ln != NULL) { | | 479 | if (ln != NULL) { |
480 | Var *v = (Var *)Hash_GetValue(ln); | | 480 | Var *v = (Var *)Hash_GetValue(ln); |
481 | if (v->flags & VAR_EXPORTED) | | 481 | if (v->flags & VAR_EXPORTED) |
482 | unsetenv(v->name); | | 482 | unsetenv(v->name); |
483 | if (strcmp(MAKE_EXPORTED, v->name) == 0) | | 483 | if (strcmp(MAKE_EXPORTED, v->name) == 0) |
484 | var_exportedVars = VAR_EXPORTED_NONE; | | 484 | var_exportedVars = VAR_EXPORTED_NONE; |
485 | if (v->name != ln->name) | | 485 | if (v->name != ln->name) |
486 | free(v->name); | | 486 | free(v->name); |
487 | Hash_DeleteEntry(&ctxt->context, ln); | | 487 | Hash_DeleteEntry(&ctxt->context, ln); |
488 | Buf_Destroy(&v->val, TRUE); | | 488 | Buf_Destroy(&v->val, TRUE); |
489 | free(v); | | 489 | free(v); |
490 | } | | 490 | } |
491 | } | | 491 | } |
492 | | | 492 | |
493 | | | 493 | |
494 | /* | | 494 | /* |
495 | * Export a var. | | 495 | * Export a var. |
496 | * We ignore make internal variables (those which start with '.') | | 496 | * We ignore make internal variables (those which start with '.') |
497 | * Also we jump through some hoops to avoid calling setenv | | 497 | * Also we jump through some hoops to avoid calling setenv |
498 | * more than necessary since it can leak. | | 498 | * more than necessary since it can leak. |
499 | * We only manipulate flags of vars if 'parent' is set. | | 499 | * We only manipulate flags of vars if 'parent' is set. |
500 | */ | | 500 | */ |
501 | static int | | 501 | static int |
502 | Var_Export1(const char *name, VarExportFlags flags) | | 502 | Var_Export1(const char *name, VarExportFlags flags) |
503 | { | | 503 | { |
504 | char tmp[BUFSIZ]; | | 504 | char tmp[BUFSIZ]; |
505 | Var *v; | | 505 | Var *v; |
506 | char *val = NULL; | | 506 | char *val = NULL; |
507 | int n; | | 507 | int n; |
508 | VarExportFlags parent = flags & VAR_EXPORT_PARENT; | | 508 | VarExportFlags parent = flags & VAR_EXPORT_PARENT; |
509 | | | 509 | |
510 | if (*name == '.') | | 510 | if (*name == '.') |
511 | return 0; /* skip internals */ | | 511 | return 0; /* skip internals */ |
512 | if (!name[1]) { | | 512 | if (!name[1]) { |
513 | /* | | 513 | /* |
514 | * A single char. | | 514 | * A single char. |
515 | * If it is one of the vars that should only appear in | | 515 | * If it is one of the vars that should only appear in |
516 | * local context, skip it, else we can get Var_Subst | | 516 | * local context, skip it, else we can get Var_Subst |
517 | * into a loop. | | 517 | * into a loop. |
518 | */ | | 518 | */ |
519 | switch (name[0]) { | | 519 | switch (name[0]) { |
520 | case '@': | | 520 | case '@': |
521 | case '%': | | 521 | case '%': |
522 | case '*': | | 522 | case '*': |
523 | case '!': | | 523 | case '!': |
524 | return 0; | | 524 | return 0; |
525 | } | | 525 | } |
526 | } | | 526 | } |
527 | v = VarFind(name, VAR_GLOBAL, 0); | | 527 | v = VarFind(name, VAR_GLOBAL, 0); |
528 | if (v == NULL) | | 528 | if (v == NULL) |
529 | return 0; | | 529 | return 0; |
530 | if (!parent && | | 530 | if (!parent && |
531 | (v->flags & (VAR_EXPORTED | VAR_REEXPORT)) == VAR_EXPORTED) { | | 531 | (v->flags & (VAR_EXPORTED | VAR_REEXPORT)) == VAR_EXPORTED) { |
532 | return 0; /* nothing to do */ | | 532 | return 0; /* nothing to do */ |
533 | } | | 533 | } |
534 | val = Buf_GetAll(&v->val, NULL); | | 534 | val = Buf_GetAll(&v->val, NULL); |
535 | if ((flags & VAR_EXPORT_LITERAL) == 0 && strchr(val, '$')) { | | 535 | if ((flags & VAR_EXPORT_LITERAL) == 0 && strchr(val, '$')) { |
536 | if (parent) { | | 536 | if (parent) { |
537 | /* | | 537 | /* |
538 | * Flag this as something we need to re-export. | | 538 | * Flag this as something we need to re-export. |
539 | * No point actually exporting it now though, | | 539 | * No point actually exporting it now though, |
540 | * the child can do it at the last minute. | | 540 | * the child can do it at the last minute. |
541 | */ | | 541 | */ |
542 | v->flags |= (VAR_EXPORTED | VAR_REEXPORT); | | 542 | v->flags |= (VAR_EXPORTED | VAR_REEXPORT); |
543 | return 1; | | 543 | return 1; |
544 | } | | 544 | } |
545 | if (v->flags & VAR_IN_USE) { | | 545 | if (v->flags & VAR_IN_USE) { |
546 | /* | | 546 | /* |
547 | * We recursed while exporting in a child. | | 547 | * We recursed while exporting in a child. |
548 | * This isn't going to end well, just skip it. | | 548 | * This isn't going to end well, just skip it. |
549 | */ | | 549 | */ |
550 | return 0; | | 550 | return 0; |
551 | } | | 551 | } |
552 | n = snprintf(tmp, sizeof(tmp), "${%s}", name); | | 552 | n = snprintf(tmp, sizeof(tmp), "${%s}", name); |
553 | if (n < (int)sizeof(tmp)) { | | 553 | if (n < (int)sizeof(tmp)) { |
554 | val = Var_Subst(NULL, tmp, VAR_GLOBAL, VARE_WANTRES); | | 554 | val = Var_Subst(NULL, tmp, VAR_GLOBAL, VARE_WANTRES); |
555 | setenv(name, val, 1); | | 555 | setenv(name, val, 1); |
556 | free(val); | | 556 | free(val); |
557 | } | | 557 | } |
558 | } else { | | 558 | } else { |
559 | if (parent) | | 559 | if (parent) |
560 | v->flags &= ~VAR_REEXPORT; /* once will do */ | | 560 | v->flags &= ~VAR_REEXPORT; /* once will do */ |
561 | if (parent || !(v->flags & VAR_EXPORTED)) | | 561 | if (parent || !(v->flags & VAR_EXPORTED)) |
562 | setenv(name, val, 1); | | 562 | setenv(name, val, 1); |
563 | } | | 563 | } |
564 | /* | | 564 | /* |
565 | * This is so Var_Set knows to call Var_Export again... | | 565 | * This is so Var_Set knows to call Var_Export again... |
566 | */ | | 566 | */ |
567 | if (parent) { | | 567 | if (parent) { |
568 | v->flags |= VAR_EXPORTED; | | 568 | v->flags |= VAR_EXPORTED; |
569 | } | | 569 | } |
570 | return 1; | | 570 | return 1; |
571 | } | | 571 | } |
572 | | | 572 | |
573 | static void | | 573 | static void |
574 | Var_ExportVars_callback(void *entry, void *unused MAKE_ATTR_UNUSED) | | 574 | Var_ExportVars_callback(void *entry, void *unused MAKE_ATTR_UNUSED) |
575 | { | | 575 | { |
576 | Var *var = entry; | | 576 | Var *var = entry; |
577 | Var_Export1(var->name, 0); | | 577 | Var_Export1(var->name, 0); |
578 | } | | 578 | } |
579 | | | 579 | |
580 | /* | | 580 | /* |
581 | * This gets called from our children. | | 581 | * This gets called from our children. |
582 | */ | | 582 | */ |
583 | void | | 583 | void |
584 | Var_ExportVars(void) | | 584 | Var_ExportVars(void) |
585 | { | | 585 | { |
586 | char tmp[BUFSIZ]; | | 586 | char tmp[BUFSIZ]; |
587 | char *val; | | 587 | char *val; |
588 | int n; | | 588 | int n; |
589 | | | 589 | |
590 | /* | | 590 | /* |
591 | * Several make's support this sort of mechanism for tracking | | 591 | * Several make's support this sort of mechanism for tracking |
592 | * recursion - but each uses a different name. | | 592 | * recursion - but each uses a different name. |
593 | * We allow the makefiles to update MAKELEVEL and ensure | | 593 | * We allow the makefiles to update MAKELEVEL and ensure |
594 | * children see a correctly incremented value. | | 594 | * children see a correctly incremented value. |
595 | */ | | 595 | */ |
596 | snprintf(tmp, sizeof(tmp), "%d", makelevel + 1); | | 596 | snprintf(tmp, sizeof(tmp), "%d", makelevel + 1); |
597 | setenv(MAKE_LEVEL_ENV, tmp, 1); | | 597 | setenv(MAKE_LEVEL_ENV, tmp, 1); |
598 | | | 598 | |
599 | if (VAR_EXPORTED_NONE == var_exportedVars) | | 599 | if (VAR_EXPORTED_NONE == var_exportedVars) |
600 | return; | | 600 | return; |
601 | | | 601 | |
602 | if (VAR_EXPORTED_ALL == var_exportedVars) { | | 602 | if (VAR_EXPORTED_ALL == var_exportedVars) { |
603 | /* Ouch! This is crazy... */ | | 603 | /* Ouch! This is crazy... */ |
604 | Hash_ForEach(&VAR_GLOBAL->context, Var_ExportVars_callback, NULL); | | 604 | Hash_ForEach(&VAR_GLOBAL->context, Var_ExportVars_callback, NULL); |
605 | return; | | 605 | return; |
606 | } | | 606 | } |
607 | /* | | 607 | /* |
608 | * We have a number of exported vars, | | 608 | * We have a number of exported vars, |
609 | */ | | 609 | */ |
610 | n = snprintf(tmp, sizeof(tmp), "${" MAKE_EXPORTED ":O:u}"); | | 610 | n = snprintf(tmp, sizeof(tmp), "${" MAKE_EXPORTED ":O:u}"); |
611 | if (n < (int)sizeof(tmp)) { | | 611 | if (n < (int)sizeof(tmp)) { |
612 | char **av; | | 612 | char **av; |
613 | char *as; | | 613 | char *as; |
614 | int ac; | | 614 | int ac; |
615 | int i; | | 615 | int i; |
616 | | | 616 | |
617 | val = Var_Subst(NULL, tmp, VAR_GLOBAL, VARE_WANTRES); | | 617 | val = Var_Subst(NULL, tmp, VAR_GLOBAL, VARE_WANTRES); |
618 | if (*val) { | | 618 | if (*val) { |
619 | av = brk_string(val, &ac, FALSE, &as); | | 619 | av = brk_string(val, &ac, FALSE, &as); |
620 | for (i = 0; i < ac; i++) | | 620 | for (i = 0; i < ac; i++) |
621 | Var_Export1(av[i], 0); | | 621 | Var_Export1(av[i], 0); |
622 | free(as); | | 622 | free(as); |
623 | free(av); | | 623 | free(av); |
624 | } | | 624 | } |
625 | free(val); | | 625 | free(val); |
626 | } | | 626 | } |
627 | } | | 627 | } |
628 | | | 628 | |
629 | /* | | 629 | /* |
630 | * This is called when .export is seen or | | 630 | * This is called when .export is seen or |
631 | * .MAKE.EXPORTED is modified. | | 631 | * .MAKE.EXPORTED is modified. |
632 | * It is also called when any exported var is modified. | | 632 | * It is also called when any exported var is modified. |
633 | */ | | 633 | */ |
634 | void | | 634 | void |
635 | Var_Export(char *str, int isExport) | | 635 | Var_Export(char *str, int isExport) |
636 | { | | 636 | { |
637 | char **av; | | 637 | char **av; |
638 | char *as; | | 638 | char *as; |
639 | VarExportFlags flags; | | 639 | VarExportFlags flags; |
640 | int ac; | | 640 | int ac; |
641 | int i; | | 641 | int i; |
642 | | | 642 | |
643 | if (isExport && (!str || !str[0])) { | | 643 | if (isExport && (!str || !str[0])) { |
644 | var_exportedVars = VAR_EXPORTED_ALL; /* use with caution! */ | | 644 | var_exportedVars = VAR_EXPORTED_ALL; /* use with caution! */ |
645 | return; | | 645 | return; |
646 | } | | 646 | } |
647 | | | 647 | |
648 | flags = 0; | | 648 | flags = 0; |
649 | if (strncmp(str, "-env", 4) == 0) { | | 649 | if (strncmp(str, "-env", 4) == 0) { |
650 | str += 4; | | 650 | str += 4; |
651 | } else if (strncmp(str, "-literal", 8) == 0) { | | 651 | } else if (strncmp(str, "-literal", 8) == 0) { |
652 | str += 8; | | 652 | str += 8; |
653 | flags |= VAR_EXPORT_LITERAL; | | 653 | flags |= VAR_EXPORT_LITERAL; |
654 | } else { | | 654 | } else { |
655 | flags |= VAR_EXPORT_PARENT; | | 655 | flags |= VAR_EXPORT_PARENT; |
656 | } | | 656 | } |
657 | | | 657 | |
658 | char *val = Var_Subst(NULL, str, VAR_GLOBAL, VARE_WANTRES); | | 658 | char *val = Var_Subst(NULL, str, VAR_GLOBAL, VARE_WANTRES); |
659 | if (*val) { | | 659 | if (*val) { |
660 | av = brk_string(val, &ac, FALSE, &as); | | 660 | av = brk_string(val, &ac, FALSE, &as); |
661 | for (i = 0; i < ac; i++) { | | 661 | for (i = 0; i < ac; i++) { |
662 | const char *name = av[i]; | | 662 | const char *name = av[i]; |
663 | if (!name[1]) { | | 663 | if (!name[1]) { |
664 | /* | | 664 | /* |
665 | * A single char. | | 665 | * A single char. |
666 | * If it is one of the vars that should only appear in | | 666 | * If it is one of the vars that should only appear in |
667 | * local context, skip it, else we can get Var_Subst | | 667 | * local context, skip it, else we can get Var_Subst |
668 | * into a loop. | | 668 | * into a loop. |
669 | */ | | 669 | */ |
670 | switch (name[0]) { | | 670 | switch (name[0]) { |
671 | case '@': | | 671 | case '@': |
672 | case '%': | | 672 | case '%': |
673 | case '*': | | 673 | case '*': |
674 | case '!': | | 674 | case '!': |
675 | continue; | | 675 | continue; |
676 | } | | 676 | } |
677 | } | | 677 | } |
678 | if (Var_Export1(name, flags)) { | | 678 | if (Var_Export1(name, flags)) { |
679 | if (VAR_EXPORTED_ALL != var_exportedVars) | | 679 | if (VAR_EXPORTED_ALL != var_exportedVars) |
680 | var_exportedVars = VAR_EXPORTED_YES; | | 680 | var_exportedVars = VAR_EXPORTED_YES; |
681 | if (isExport && (flags & VAR_EXPORT_PARENT)) { | | 681 | if (isExport && (flags & VAR_EXPORT_PARENT)) { |
682 | Var_Append(MAKE_EXPORTED, name, VAR_GLOBAL); | | 682 | Var_Append(MAKE_EXPORTED, name, VAR_GLOBAL); |
683 | } | | 683 | } |
684 | } | | 684 | } |
685 | } | | 685 | } |
686 | free(as); | | 686 | free(as); |
687 | free(av); | | 687 | free(av); |
688 | } | | 688 | } |
689 | free(val); | | 689 | free(val); |
690 | } | | 690 | } |
691 | | | 691 | |
692 | | | 692 | |
693 | extern char **environ; | | 693 | extern char **environ; |
694 | | | 694 | |
695 | /* | | 695 | /* |
696 | * This is called when .unexport[-env] is seen. | | 696 | * This is called when .unexport[-env] is seen. |
697 | */ | | 697 | */ |
698 | void | | 698 | void |
699 | Var_UnExport(char *str) | | 699 | Var_UnExport(char *str) |
700 | { | | 700 | { |
701 | char tmp[BUFSIZ]; | | 701 | char tmp[BUFSIZ]; |
702 | char *vlist; | | 702 | char *vlist; |
703 | char *cp; | | 703 | char *cp; |
704 | Boolean unexport_env; | | 704 | Boolean unexport_env; |
705 | int n; | | 705 | int n; |
706 | | | 706 | |
707 | if (str == NULL || str[0] == '\0') | | 707 | if (str == NULL || str[0] == '\0') |
708 | return; /* assert? */ | | 708 | return; /* assert? */ |
709 | | | 709 | |
710 | vlist = NULL; | | 710 | vlist = NULL; |
711 | | | 711 | |
712 | str += 8; | | 712 | str += 8; |
713 | unexport_env = (strncmp(str, "-env", 4) == 0); | | 713 | unexport_env = (strncmp(str, "-env", 4) == 0); |
714 | if (unexport_env) { | | 714 | if (unexport_env) { |
715 | char **newenv; | | 715 | char **newenv; |
716 | | | 716 | |
717 | cp = getenv(MAKE_LEVEL_ENV); /* we should preserve this */ | | 717 | cp = getenv(MAKE_LEVEL_ENV); /* we should preserve this */ |
718 | if (environ == savedEnv) { | | 718 | if (environ == savedEnv) { |
719 | /* we have been here before! */ | | 719 | /* we have been here before! */ |
720 | newenv = bmake_realloc(environ, 2 * sizeof(char *)); | | 720 | newenv = bmake_realloc(environ, 2 * sizeof(char *)); |
721 | } else { | | 721 | } else { |
722 | if (savedEnv) { | | 722 | if (savedEnv) { |
723 | free(savedEnv); | | 723 | free(savedEnv); |
724 | savedEnv = NULL; | | 724 | savedEnv = NULL; |
725 | } | | 725 | } |
726 | newenv = bmake_malloc(2 * sizeof(char *)); | | 726 | newenv = bmake_malloc(2 * sizeof(char *)); |
727 | } | | 727 | } |
728 | if (!newenv) | | 728 | if (!newenv) |
729 | return; | | 729 | return; |
730 | /* Note: we cannot safely free() the original environ. */ | | 730 | /* Note: we cannot safely free() the original environ. */ |
731 | environ = savedEnv = newenv; | | 731 | environ = savedEnv = newenv; |
732 | newenv[0] = NULL; | | 732 | newenv[0] = NULL; |
733 | newenv[1] = NULL; | | 733 | newenv[1] = NULL; |
734 | if (cp && *cp) | | 734 | if (cp && *cp) |
735 | setenv(MAKE_LEVEL_ENV, cp, 1); | | 735 | setenv(MAKE_LEVEL_ENV, cp, 1); |
736 | } else { | | 736 | } else { |
737 | for (; *str != '\n' && isspace((unsigned char) *str); str++) | | 737 | for (; *str != '\n' && isspace((unsigned char) *str); str++) |
738 | continue; | | 738 | continue; |
739 | if (str[0] && str[0] != '\n') { | | 739 | if (str[0] && str[0] != '\n') { |
740 | vlist = str; | | 740 | vlist = str; |
741 | } | | 741 | } |
742 | } | | 742 | } |
743 | | | 743 | |
744 | if (!vlist) { | | 744 | if (!vlist) { |
745 | /* Using .MAKE.EXPORTED */ | | 745 | /* Using .MAKE.EXPORTED */ |
746 | vlist = Var_Subst(NULL, "${" MAKE_EXPORTED ":O:u}", VAR_GLOBAL, | | 746 | vlist = Var_Subst(NULL, "${" MAKE_EXPORTED ":O:u}", VAR_GLOBAL, |
747 | VARE_WANTRES); | | 747 | VARE_WANTRES); |
748 | } | | 748 | } |
749 | if (vlist) { | | 749 | if (vlist) { |
750 | Var *v; | | 750 | Var *v; |
751 | char **av; | | 751 | char **av; |
752 | char *as; | | 752 | char *as; |
753 | int ac; | | 753 | int ac; |
754 | int i; | | 754 | int i; |
755 | | | 755 | |
756 | av = brk_string(vlist, &ac, FALSE, &as); | | 756 | av = brk_string(vlist, &ac, FALSE, &as); |
757 | for (i = 0; i < ac; i++) { | | 757 | for (i = 0; i < ac; i++) { |
758 | v = VarFind(av[i], VAR_GLOBAL, 0); | | 758 | v = VarFind(av[i], VAR_GLOBAL, 0); |
759 | if (!v) | | 759 | if (!v) |
760 | continue; | | 760 | continue; |
761 | if (!unexport_env && | | 761 | if (!unexport_env && |
762 | (v->flags & (VAR_EXPORTED | VAR_REEXPORT)) == VAR_EXPORTED) | | 762 | (v->flags & (VAR_EXPORTED | VAR_REEXPORT)) == VAR_EXPORTED) |
763 | unsetenv(v->name); | | 763 | unsetenv(v->name); |
764 | v->flags &= ~(VAR_EXPORTED | VAR_REEXPORT); | | 764 | v->flags &= ~(VAR_EXPORTED | VAR_REEXPORT); |
765 | /* | | 765 | /* |
766 | * If we are unexporting a list, | | 766 | * If we are unexporting a list, |
767 | * remove each one from .MAKE.EXPORTED. | | 767 | * remove each one from .MAKE.EXPORTED. |
768 | * If we are removing them all, | | 768 | * If we are removing them all, |
769 | * just delete .MAKE.EXPORTED below. | | 769 | * just delete .MAKE.EXPORTED below. |
770 | */ | | 770 | */ |
771 | if (vlist == str) { | | 771 | if (vlist == str) { |
772 | n = snprintf(tmp, sizeof(tmp), | | 772 | n = snprintf(tmp, sizeof(tmp), |
773 | "${" MAKE_EXPORTED ":N%s}", v->name); | | 773 | "${" MAKE_EXPORTED ":N%s}", v->name); |
774 | if (n < (int)sizeof(tmp)) { | | 774 | if (n < (int)sizeof(tmp)) { |
775 | cp = Var_Subst(NULL, tmp, VAR_GLOBAL, VARE_WANTRES); | | 775 | cp = Var_Subst(NULL, tmp, VAR_GLOBAL, VARE_WANTRES); |
776 | Var_Set(MAKE_EXPORTED, cp, VAR_GLOBAL); | | 776 | Var_Set(MAKE_EXPORTED, cp, VAR_GLOBAL); |
777 | free(cp); | | 777 | free(cp); |
778 | } | | 778 | } |
779 | } | | 779 | } |
780 | } | | 780 | } |
781 | free(as); | | 781 | free(as); |
782 | free(av); | | 782 | free(av); |
783 | if (vlist != str) { | | 783 | if (vlist != str) { |
784 | Var_Delete(MAKE_EXPORTED, VAR_GLOBAL); | | 784 | Var_Delete(MAKE_EXPORTED, VAR_GLOBAL); |
785 | free(vlist); | | 785 | free(vlist); |
786 | } | | 786 | } |
787 | } | | 787 | } |
788 | } | | 788 | } |
789 | | | 789 | |
790 | static void | | 790 | static void |
791 | Var_Set_with_flags(const char *name, const char *val, GNode *ctxt, | | 791 | Var_Set_with_flags(const char *name, const char *val, GNode *ctxt, |
792 | VarSet_Flags flags) | | 792 | VarSet_Flags flags) |
793 | { | | 793 | { |
794 | Var *v; | | 794 | Var *v; |
795 | char *expanded_name = NULL; | | 795 | char *expanded_name = NULL; |
796 | | | 796 | |
797 | /* | | 797 | /* |
798 | * We only look for a variable in the given context since anything set | | 798 | * We only look for a variable in the given context since anything set |
799 | * here will override anything in a lower context, so there's not much | | 799 | * here will override anything in a lower context, so there's not much |
800 | * point in searching them all just to save a bit of memory... | | 800 | * point in searching them all just to save a bit of memory... |
801 | */ | | 801 | */ |
802 | if (strchr(name, '$') != NULL) { | | 802 | if (strchr(name, '$') != NULL) { |
803 | expanded_name = Var_Subst(NULL, name, ctxt, VARE_WANTRES); | | 803 | expanded_name = Var_Subst(NULL, name, ctxt, VARE_WANTRES); |
804 | if (expanded_name[0] == '\0') { | | 804 | if (expanded_name[0] == '\0') { |
805 | if (DEBUG(VAR)) { | | 805 | if (DEBUG(VAR)) { |
806 | fprintf(debug_file, "Var_Set(\"%s\", \"%s\", ...) " | | 806 | fprintf(debug_file, "Var_Set(\"%s\", \"%s\", ...) " |
807 | "name expands to empty string - ignored\n", | | 807 | "name expands to empty string - ignored\n", |
808 | name, val); | | 808 | name, val); |
809 | } | | 809 | } |
810 | free(expanded_name); | | 810 | free(expanded_name); |
811 | return; | | 811 | return; |
812 | } | | 812 | } |
813 | name = expanded_name; | | 813 | name = expanded_name; |
814 | } | | 814 | } |
815 | if (ctxt == VAR_GLOBAL) { | | 815 | if (ctxt == VAR_GLOBAL) { |
816 | v = VarFind(name, VAR_CMD, 0); | | 816 | v = VarFind(name, VAR_CMD, 0); |
817 | if (v != NULL) { | | 817 | if (v != NULL) { |
818 | if ((v->flags & VAR_FROM_CMD)) { | | 818 | if ((v->flags & VAR_FROM_CMD)) { |
819 | if (DEBUG(VAR)) { | | 819 | if (DEBUG(VAR)) { |
820 | fprintf(debug_file, "%s:%s = %s ignored!\n", ctxt->name, name, val); | | 820 | fprintf(debug_file, "%s:%s = %s ignored!\n", ctxt->name, name, val); |
821 | } | | 821 | } |
822 | goto out; | | 822 | goto out; |
823 | } | | 823 | } |
824 | VarFreeEnv(v, TRUE); | | 824 | VarFreeEnv(v, TRUE); |
825 | } | | 825 | } |
826 | } | | 826 | } |
827 | v = VarFind(name, ctxt, 0); | | 827 | v = VarFind(name, ctxt, 0); |
828 | if (v == NULL) { | | 828 | if (v == NULL) { |
829 | if (ctxt == VAR_CMD && (flags & VAR_NO_EXPORT) == 0) { | | 829 | if (ctxt == VAR_CMD && (flags & VAR_NO_EXPORT) == 0) { |
830 | /* | | 830 | /* |
831 | * This var would normally prevent the same name being added | | 831 | * This var would normally prevent the same name being added |
832 | * to VAR_GLOBAL, so delete it from there if needed. | | 832 | * to VAR_GLOBAL, so delete it from there if needed. |
833 | * Otherwise -V name may show the wrong value. | | 833 | * Otherwise -V name may show the wrong value. |
834 | */ | | 834 | */ |
835 | Var_Delete(name, VAR_GLOBAL); | | 835 | Var_Delete(name, VAR_GLOBAL); |
836 | } | | 836 | } |
837 | VarAdd(name, val, ctxt); | | 837 | VarAdd(name, val, ctxt); |
838 | } else { | | 838 | } else { |
839 | Buf_Empty(&v->val); | | 839 | Buf_Empty(&v->val); |
840 | if (val) | | 840 | if (val) |
841 | Buf_AddBytes(&v->val, strlen(val), val); | | 841 | Buf_AddBytes(&v->val, strlen(val), val); |
842 | | | 842 | |
843 | if (DEBUG(VAR)) { | | 843 | if (DEBUG(VAR)) { |
844 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); | | 844 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); |
845 | } | | 845 | } |
846 | if ((v->flags & VAR_EXPORTED)) { | | 846 | if ((v->flags & VAR_EXPORTED)) { |
847 | Var_Export1(name, VAR_EXPORT_PARENT); | | 847 | Var_Export1(name, VAR_EXPORT_PARENT); |
848 | } | | 848 | } |
849 | } | | 849 | } |
850 | /* | | 850 | /* |
851 | * Any variables given on the command line are automatically exported | | 851 | * Any variables given on the command line are automatically exported |
852 | * to the environment (as per POSIX standard) | | 852 | * to the environment (as per POSIX standard) |
853 | */ | | 853 | */ |
854 | if (ctxt == VAR_CMD && (flags & VAR_NO_EXPORT) == 0) { | | 854 | if (ctxt == VAR_CMD && (flags & VAR_NO_EXPORT) == 0) { |
855 | if (v == NULL) { | | 855 | if (v == NULL) { |
856 | /* we just added it */ | | 856 | /* we just added it */ |
857 | v = VarFind(name, ctxt, 0); | | 857 | v = VarFind(name, ctxt, 0); |
858 | } | | 858 | } |
859 | if (v != NULL) | | 859 | if (v != NULL) |
860 | v->flags |= VAR_FROM_CMD; | | 860 | v->flags |= VAR_FROM_CMD; |
861 | /* | | 861 | /* |
862 | * If requested, don't export these in the environment | | 862 | * If requested, don't export these in the environment |
863 | * individually. We still put them in MAKEOVERRIDES so | | 863 | * individually. We still put them in MAKEOVERRIDES so |
864 | * that the command-line settings continue to override | | 864 | * that the command-line settings continue to override |
865 | * Makefile settings. | | 865 | * Makefile settings. |
866 | */ | | 866 | */ |
867 | if (varNoExportEnv != TRUE) | | 867 | if (varNoExportEnv != TRUE) |
868 | setenv(name, val ? val : "", 1); | | 868 | setenv(name, val ? val : "", 1); |
869 | | | 869 | |
870 | Var_Append(MAKEOVERRIDES, name, VAR_GLOBAL); | | 870 | Var_Append(MAKEOVERRIDES, name, VAR_GLOBAL); |
871 | } | | 871 | } |
872 | if (name[0] == '.' && strcmp(name, SAVE_DOLLARS) == 0) | | 872 | if (name[0] == '.' && strcmp(name, SAVE_DOLLARS) == 0) |
873 | save_dollars = s2Boolean(val, save_dollars); | | 873 | save_dollars = s2Boolean(val, save_dollars); |
874 | | | 874 | |
875 | out: | | 875 | out: |
876 | free(expanded_name); | | 876 | free(expanded_name); |
877 | if (v != NULL) | | 877 | if (v != NULL) |
878 | VarFreeEnv(v, TRUE); | | 878 | VarFreeEnv(v, TRUE); |
879 | } | | 879 | } |
880 | | | 880 | |
881 | /*- | | 881 | /*- |
882 | *----------------------------------------------------------------------- | | 882 | *----------------------------------------------------------------------- |
883 | * Var_Set -- | | 883 | * Var_Set -- |
884 | * Set the variable name to the value val in the given context. | | 884 | * Set the variable name to the value val in the given context. |
885 | * | | 885 | * |
886 | * Input: | | 886 | * Input: |
887 | * name name of variable to set | | 887 | * name name of variable to set |
888 | * val value to give to the variable | | 888 | * val value to give to the variable |
889 | * ctxt context in which to set it | | 889 | * ctxt context in which to set it |
890 | * | | 890 | * |
891 | * Side Effects: | | 891 | * Side Effects: |
892 | * If the variable doesn't yet exist, a new record is created for it. | | 892 | * If the variable doesn't yet exist, a new record is created for it. |
893 | * Else the old value is freed and the new one stuck in its place | | 893 | * Else the old value is freed and the new one stuck in its place |
894 | * | | 894 | * |
895 | * Notes: | | 895 | * Notes: |
896 | * The variable is searched for only in its context before being | | 896 | * The variable is searched for only in its context before being |
897 | * created in that context. I.e. if the context is VAR_GLOBAL, | | 897 | * created in that context. I.e. if the context is VAR_GLOBAL, |
898 | * only VAR_GLOBAL->context is searched. Likewise if it is VAR_CMD, only | | 898 | * only VAR_GLOBAL->context is searched. Likewise if it is VAR_CMD, only |
899 | * VAR_CMD->context is searched. This is done to avoid the literally | | 899 | * VAR_CMD->context is searched. This is done to avoid the literally |
900 | * thousands of unnecessary strcmp's that used to be done to | | 900 | * thousands of unnecessary strcmp's that used to be done to |
901 | * set, say, $(@) or $(<). | | 901 | * set, say, $(@) or $(<). |
902 | * If the context is VAR_GLOBAL though, we check if the variable | | 902 | * If the context is VAR_GLOBAL though, we check if the variable |
903 | * was set in VAR_CMD from the command line and skip it if so. | | 903 | * was set in VAR_CMD from the command line and skip it if so. |
904 | *----------------------------------------------------------------------- | | 904 | *----------------------------------------------------------------------- |
905 | */ | | 905 | */ |
906 | void | | 906 | void |
907 | Var_Set(const char *name, const char *val, GNode *ctxt) | | 907 | Var_Set(const char *name, const char *val, GNode *ctxt) |
908 | { | | 908 | { |
909 | Var_Set_with_flags(name, val, ctxt, 0); | | 909 | Var_Set_with_flags(name, val, ctxt, 0); |
910 | } | | 910 | } |
911 | | | 911 | |
912 | /*- | | 912 | /*- |
913 | *----------------------------------------------------------------------- | | 913 | *----------------------------------------------------------------------- |
914 | * Var_Append -- | | 914 | * Var_Append -- |
915 | * The variable of the given name has the given value appended to it in | | 915 | * The variable of the given name has the given value appended to it in |
916 | * the given context. | | 916 | * the given context. |
917 | * | | 917 | * |
918 | * Input: | | 918 | * Input: |
919 | * name name of variable to modify | | 919 | * name name of variable to modify |
920 | * val String to append to it | | 920 | * val String to append to it |
921 | * ctxt Context in which this should occur | | 921 | * ctxt Context in which this should occur |
922 | * | | 922 | * |
923 | * Side Effects: | | 923 | * Side Effects: |
924 | * If the variable doesn't exist, it is created. Else the strings | | 924 | * If the variable doesn't exist, it is created. Else the strings |
925 | * are concatenated (with a space in between). | | 925 | * are concatenated (with a space in between). |
926 | * | | 926 | * |
927 | * Notes: | | 927 | * Notes: |
928 | * Only if the variable is being sought in the global context is the | | 928 | * Only if the variable is being sought in the global context is the |
929 | * environment searched. | | 929 | * environment searched. |
930 | * XXX: Knows its calling circumstances in that if called with ctxt | | 930 | * XXX: Knows its calling circumstances in that if called with ctxt |
931 | * an actual target, it will only search that context since only | | 931 | * an actual target, it will only search that context since only |
932 | * a local variable could be being appended to. This is actually | | 932 | * a local variable could be being appended to. This is actually |
933 | * a big win and must be tolerated. | | 933 | * a big win and must be tolerated. |
934 | *----------------------------------------------------------------------- | | 934 | *----------------------------------------------------------------------- |
935 | */ | | 935 | */ |
936 | void | | 936 | void |
937 | Var_Append(const char *name, const char *val, GNode *ctxt) | | 937 | Var_Append(const char *name, const char *val, GNode *ctxt) |
938 | { | | 938 | { |
939 | Var *v; | | 939 | Var *v; |
940 | Hash_Entry *h; | | 940 | Hash_Entry *h; |
941 | char *expanded_name = NULL; | | 941 | char *expanded_name = NULL; |
942 | | | 942 | |
943 | if (strchr(name, '$') != NULL) { | | 943 | if (strchr(name, '$') != NULL) { |
944 | expanded_name = Var_Subst(NULL, name, ctxt, VARE_WANTRES); | | 944 | expanded_name = Var_Subst(NULL, name, ctxt, VARE_WANTRES); |
945 | if (expanded_name[0] == '\0') { | | 945 | if (expanded_name[0] == '\0') { |
946 | if (DEBUG(VAR)) { | | 946 | if (DEBUG(VAR)) { |
947 | fprintf(debug_file, "Var_Append(\"%s\", \"%s\", ...) " | | 947 | fprintf(debug_file, "Var_Append(\"%s\", \"%s\", ...) " |
948 | "name expands to empty string - ignored\n", | | 948 | "name expands to empty string - ignored\n", |
949 | name, val); | | 949 | name, val); |
950 | } | | 950 | } |
951 | free(expanded_name); | | 951 | free(expanded_name); |
952 | return; | | 952 | return; |
953 | } | | 953 | } |
954 | name = expanded_name; | | 954 | name = expanded_name; |
955 | } | | 955 | } |
956 | | | 956 | |
957 | v = VarFind(name, ctxt, ctxt == VAR_GLOBAL ? (FIND_CMD | FIND_ENV) : 0); | | 957 | v = VarFind(name, ctxt, ctxt == VAR_GLOBAL ? (FIND_CMD | FIND_ENV) : 0); |
958 | | | 958 | |
959 | if (v == NULL) { | | 959 | if (v == NULL) { |
960 | Var_Set(name, val, ctxt); | | 960 | Var_Set(name, val, ctxt); |
961 | } else if (ctxt == VAR_CMD || !(v->flags & VAR_FROM_CMD)) { | | 961 | } else if (ctxt == VAR_CMD || !(v->flags & VAR_FROM_CMD)) { |
962 | Buf_AddByte(&v->val, ' '); | | 962 | Buf_AddByte(&v->val, ' '); |
963 | Buf_AddBytes(&v->val, strlen(val), val); | | 963 | Buf_AddBytes(&v->val, strlen(val), val); |
964 | | | 964 | |
965 | if (DEBUG(VAR)) { | | 965 | if (DEBUG(VAR)) { |
966 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, | | 966 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, |
967 | Buf_GetAll(&v->val, NULL)); | | 967 | Buf_GetAll(&v->val, NULL)); |
968 | } | | 968 | } |
969 | | | 969 | |
970 | if (v->flags & VAR_FROM_ENV) { | | 970 | if (v->flags & VAR_FROM_ENV) { |
971 | /* | | 971 | /* |
972 | * If the original variable came from the environment, we | | 972 | * If the original variable came from the environment, we |
973 | * have to install it in the global context (we could place | | 973 | * have to install it in the global context (we could place |
974 | * it in the environment, but then we should provide a way to | | 974 | * it in the environment, but then we should provide a way to |
975 | * export other variables...) | | 975 | * export other variables...) |
976 | */ | | 976 | */ |
977 | v->flags &= ~VAR_FROM_ENV; | | 977 | v->flags &= ~VAR_FROM_ENV; |
978 | h = Hash_CreateEntry(&ctxt->context, name, NULL); | | 978 | h = Hash_CreateEntry(&ctxt->context, name, NULL); |
979 | Hash_SetValue(h, v); | | 979 | Hash_SetValue(h, v); |
980 | } | | 980 | } |
981 | } | | 981 | } |
982 | free(expanded_name); | | 982 | free(expanded_name); |
983 | } | | 983 | } |
984 | | | 984 | |
985 | /*- | | 985 | /*- |
986 | *----------------------------------------------------------------------- | | 986 | *----------------------------------------------------------------------- |
987 | * Var_Exists -- | | 987 | * Var_Exists -- |
988 | * See if the given variable exists. | | 988 | * See if the given variable exists. |
989 | * | | 989 | * |
990 | * Input: | | 990 | * Input: |
991 | * name Variable to find | | 991 | * name Variable to find |
992 | * ctxt Context in which to start search | | 992 | * ctxt Context in which to start search |
993 | * | | 993 | * |
994 | * Results: | | 994 | * Results: |
995 | * TRUE if it does, FALSE if it doesn't | | 995 | * TRUE if it does, FALSE if it doesn't |
996 | * | | 996 | * |
997 | * Side Effects: | | 997 | * Side Effects: |
998 | * None. | | 998 | * None. |
999 | * | | 999 | * |
1000 | *----------------------------------------------------------------------- | | 1000 | *----------------------------------------------------------------------- |
1001 | */ | | 1001 | */ |
1002 | Boolean | | 1002 | Boolean |
1003 | Var_Exists(const char *name, GNode *ctxt) | | 1003 | Var_Exists(const char *name, GNode *ctxt) |
1004 | { | | 1004 | { |
1005 | Var *v; | | 1005 | Var *v; |
1006 | char *cp; | | 1006 | char *cp; |
1007 | | | 1007 | |
1008 | if ((cp = strchr(name, '$')) != NULL) | | 1008 | if ((cp = strchr(name, '$')) != NULL) |
1009 | cp = Var_Subst(NULL, name, ctxt, VARE_WANTRES); | | 1009 | cp = Var_Subst(NULL, name, ctxt, VARE_WANTRES); |
1010 | v = VarFind(cp ? cp : name, ctxt, FIND_CMD | FIND_GLOBAL | FIND_ENV); | | 1010 | v = VarFind(cp ? cp : name, ctxt, FIND_CMD | FIND_GLOBAL | FIND_ENV); |
1011 | free(cp); | | 1011 | free(cp); |
1012 | if (v == NULL) | | 1012 | if (v == NULL) |
1013 | return FALSE; | | 1013 | return FALSE; |
1014 | | | 1014 | |
1015 | (void)VarFreeEnv(v, TRUE); | | 1015 | (void)VarFreeEnv(v, TRUE); |
1016 | return TRUE; | | 1016 | return TRUE; |
1017 | } | | 1017 | } |
1018 | | | 1018 | |
1019 | /*- | | 1019 | /*- |
1020 | *----------------------------------------------------------------------- | | 1020 | *----------------------------------------------------------------------- |
1021 | * Var_Value -- | | 1021 | * Var_Value -- |
1022 | * Return the value of the named variable in the given context | | 1022 | * Return the value of the named variable in the given context |
1023 | * | | 1023 | * |
1024 | * Input: | | 1024 | * Input: |
1025 | * name name to find | | 1025 | * name name to find |
1026 | * ctxt context in which to search for it | | 1026 | * ctxt context in which to search for it |
1027 | * | | 1027 | * |
1028 | * Results: | | 1028 | * Results: |
1029 | * The value if the variable exists, NULL if it doesn't | | 1029 | * The value if the variable exists, NULL if it doesn't |
1030 | * | | 1030 | * |
1031 | * Side Effects: | | 1031 | * Side Effects: |
1032 | * None | | 1032 | * None |
1033 | *----------------------------------------------------------------------- | | 1033 | *----------------------------------------------------------------------- |
1034 | */ | | 1034 | */ |
1035 | char * | | 1035 | char * |
1036 | Var_Value(const char *name, GNode *ctxt, char **frp) | | 1036 | Var_Value(const char *name, GNode *ctxt, char **frp) |
1037 | { | | 1037 | { |
1038 | Var *v = VarFind(name, ctxt, FIND_ENV | FIND_GLOBAL | FIND_CMD); | | 1038 | Var *v = VarFind(name, ctxt, FIND_ENV | FIND_GLOBAL | FIND_CMD); |
1039 | *frp = NULL; | | 1039 | *frp = NULL; |
1040 | if (v == NULL) | | 1040 | if (v == NULL) |
1041 | return NULL; | | 1041 | return NULL; |
1042 | | | 1042 | |
1043 | char *p = Buf_GetAll(&v->val, NULL); | | 1043 | char *p = Buf_GetAll(&v->val, NULL); |
1044 | if (VarFreeEnv(v, FALSE)) | | 1044 | if (VarFreeEnv(v, FALSE)) |
1045 | *frp = p; | | 1045 | *frp = p; |
1046 | return p; | | 1046 | return p; |
1047 | } | | 1047 | } |
1048 | | | 1048 | |
1049 | | | 1049 | |
1050 | /* SepBuf is a string being built from "words", interleaved with separators. */ | | 1050 | /* SepBuf is a string being built from "words", interleaved with separators. */ |
1051 | typedef struct { | | 1051 | typedef struct { |
1052 | Buffer buf; | | 1052 | Buffer buf; |
1053 | Boolean needSep; | | 1053 | Boolean needSep; |
1054 | char sep; | | 1054 | char sep; |
1055 | } SepBuf; | | 1055 | } SepBuf; |
1056 | | | 1056 | |
1057 | static void | | 1057 | static void |
1058 | SepBuf_Init(SepBuf *buf, char sep) | | 1058 | SepBuf_Init(SepBuf *buf, char sep) |
1059 | { | | 1059 | { |
1060 | Buf_Init(&buf->buf, 32 /* bytes */); | | 1060 | Buf_Init(&buf->buf, 32 /* bytes */); |
1061 | buf->needSep = FALSE; | | 1061 | buf->needSep = FALSE; |
1062 | buf->sep = sep; | | 1062 | buf->sep = sep; |
1063 | } | | 1063 | } |
1064 | | | 1064 | |
1065 | static void | | 1065 | static void |
1066 | SepBuf_Sep(SepBuf *buf) | | 1066 | SepBuf_Sep(SepBuf *buf) |
1067 | { | | 1067 | { |
1068 | buf->needSep = TRUE; | | 1068 | buf->needSep = TRUE; |
1069 | } | | 1069 | } |
1070 | | | 1070 | |
1071 | static void | | 1071 | static void |
1072 | SepBuf_AddBytes(SepBuf *buf, const void *mem, size_t mem_size) | | 1072 | SepBuf_AddBytes(SepBuf *buf, const void *mem, size_t mem_size) |
1073 | { | | 1073 | { |
1074 | if (mem_size == 0) | | 1074 | if (mem_size == 0) |
1075 | return; | | 1075 | return; |
1076 | if (buf->needSep && buf->sep != '\0') { | | 1076 | if (buf->needSep && buf->sep != '\0') { |
1077 | Buf_AddByte(&buf->buf, buf->sep); | | 1077 | Buf_AddByte(&buf->buf, buf->sep); |
1078 | buf->needSep = FALSE; | | 1078 | buf->needSep = FALSE; |
1079 | } | | 1079 | } |
1080 | Buf_AddBytes(&buf->buf, mem_size, mem); | | 1080 | Buf_AddBytes(&buf->buf, mem_size, mem); |
1081 | } | | 1081 | } |
1082 | | | 1082 | |
1083 | static char * | | 1083 | static char * |
1084 | SepBuf_Destroy(SepBuf *buf, Boolean free_buf) | | 1084 | SepBuf_Destroy(SepBuf *buf, Boolean free_buf) |
1085 | { | | 1085 | { |
1086 | return Buf_Destroy(&buf->buf, free_buf); | | 1086 | return Buf_Destroy(&buf->buf, free_buf); |
1087 | } | | 1087 | } |
1088 | | | 1088 | |
1089 | | | 1089 | |
1090 | /* This callback for ModifyWords gets a single word from an expression and | | 1090 | /* This callback for ModifyWords gets a single word from an expression and |
1091 | * typically adds a modification of this word to the buffer. It may also do | | 1091 | * typically adds a modification of this word to the buffer. It may also do |
1092 | * nothing or add several words. */ | | 1092 | * nothing or add several words. */ |
1093 | typedef void (*ModifyWordsCallback)(const char *word, SepBuf *buf, void *data); | | 1093 | typedef void (*ModifyWordsCallback)(const char *word, SepBuf *buf, void *data); |
1094 | | | 1094 | |
1095 | | | 1095 | |
1096 | /* Callback for ModifyWords to implement the :H modifier. | | 1096 | /* Callback for ModifyWords to implement the :H modifier. |
1097 | * Add the dirname of the given word to the buffer. */ | | 1097 | * Add the dirname of the given word to the buffer. */ |
1098 | static void | | 1098 | static void |
1099 | ModifyWord_Head(const char *word, SepBuf *buf, void *dummy MAKE_ATTR_UNUSED) | | 1099 | ModifyWord_Head(const char *word, SepBuf *buf, void *dummy MAKE_ATTR_UNUSED) |
1100 | { | | 1100 | { |
1101 | const char *slash = strrchr(word, '/'); | | 1101 | const char *slash = strrchr(word, '/'); |
1102 | if (slash != NULL) | | 1102 | if (slash != NULL) |
1103 | SepBuf_AddBytes(buf, word, slash - word); | | 1103 | SepBuf_AddBytes(buf, word, slash - word); |
1104 | else | | 1104 | else |
1105 | SepBuf_AddBytes(buf, ".", 1); | | 1105 | SepBuf_AddBytes(buf, ".", 1); |
1106 | } | | 1106 | } |
1107 | | | 1107 | |
1108 | /* Callback for ModifyWords to implement the :T modifier. | | 1108 | /* Callback for ModifyWords to implement the :T modifier. |
1109 | * Add the basename of the given word to the buffer. */ | | 1109 | * Add the basename of the given word to the buffer. */ |
1110 | static void | | 1110 | static void |
1111 | ModifyWord_Tail(const char *word, SepBuf *buf, void *dummy MAKE_ATTR_UNUSED) | | 1111 | ModifyWord_Tail(const char *word, SepBuf *buf, void *dummy MAKE_ATTR_UNUSED) |
1112 | { | | 1112 | { |
1113 | const char *slash = strrchr(word, '/'); | | 1113 | const char *slash = strrchr(word, '/'); |
1114 | const char *base = slash != NULL ? slash + 1 : word; | | 1114 | const char *base = slash != NULL ? slash + 1 : word; |
1115 | SepBuf_AddBytes(buf, base, strlen(base)); | | 1115 | SepBuf_AddBytes(buf, base, strlen(base)); |
1116 | } | | 1116 | } |
1117 | | | 1117 | |
1118 | /* Callback for ModifyWords to implement the :E modifier. | | 1118 | /* Callback for ModifyWords to implement the :E modifier. |
1119 | * Add the filename suffix of the given word to the buffer, if it exists. */ | | 1119 | * Add the filename suffix of the given word to the buffer, if it exists. */ |
1120 | static void | | 1120 | static void |
1121 | ModifyWord_Suffix(const char *word, SepBuf *buf, void *dummy MAKE_ATTR_UNUSED) | | 1121 | ModifyWord_Suffix(const char *word, SepBuf *buf, void *dummy MAKE_ATTR_UNUSED) |
1122 | { | | 1122 | { |
1123 | const char *dot = strrchr(word, '.'); | | 1123 | const char *dot = strrchr(word, '.'); |
1124 | if (dot != NULL) | | 1124 | if (dot != NULL) |
1125 | SepBuf_AddBytes(buf, dot + 1, strlen(dot + 1)); | | 1125 | SepBuf_AddBytes(buf, dot + 1, strlen(dot + 1)); |
1126 | } | | 1126 | } |
1127 | | | 1127 | |
1128 | /* Callback for ModifyWords to implement the :R modifier. | | 1128 | /* Callback for ModifyWords to implement the :R modifier. |
1129 | * Add the basename of the given word to the buffer. */ | | 1129 | * Add the basename of the given word to the buffer. */ |
1130 | static void | | 1130 | static void |
1131 | ModifyWord_Root(const char *word, SepBuf *buf, void *dummy MAKE_ATTR_UNUSED) | | 1131 | ModifyWord_Root(const char *word, SepBuf *buf, void *dummy MAKE_ATTR_UNUSED) |
1132 | { | | 1132 | { |
1133 | char *dot = strrchr(word, '.'); | | 1133 | char *dot = strrchr(word, '.'); |
1134 | size_t len = dot != NULL ? (size_t)(dot - word) : strlen(word); | | 1134 | size_t len = dot != NULL ? (size_t)(dot - word) : strlen(word); |
1135 | SepBuf_AddBytes(buf, word, len); | | 1135 | SepBuf_AddBytes(buf, word, len); |
1136 | } | | 1136 | } |
1137 | | | 1137 | |
1138 | /* Callback for ModifyWords to implement the :M modifier. | | 1138 | /* Callback for ModifyWords to implement the :M modifier. |
1139 | * Place the word in the buffer if it matches the given pattern. */ | | 1139 | * Place the word in the buffer if it matches the given pattern. */ |
1140 | static void | | 1140 | static void |
1141 | ModifyWord_Match(const char *word, SepBuf *buf, void *data) | | 1141 | ModifyWord_Match(const char *word, SepBuf *buf, void *data) |
1142 | { | | 1142 | { |
1143 | const char *pattern = data; | | 1143 | const char *pattern = data; |
1144 | if (DEBUG(VAR)) | | 1144 | if (DEBUG(VAR)) |
1145 | fprintf(debug_file, "VarMatch [%s] [%s]\n", word, pattern); | | 1145 | fprintf(debug_file, "VarMatch [%s] [%s]\n", word, pattern); |
1146 | if (Str_Match(word, pattern)) | | 1146 | if (Str_Match(word, pattern)) |
1147 | SepBuf_AddBytes(buf, word, strlen(word)); | | 1147 | SepBuf_AddBytes(buf, word, strlen(word)); |
1148 | } | | 1148 | } |
1149 | | | 1149 | |
1150 | /* Callback for ModifyWords to implement the :N modifier. | | 1150 | /* Callback for ModifyWords to implement the :N modifier. |
1151 | * Place the word in the buffer if it doesn't match the given pattern. */ | | 1151 | * Place the word in the buffer if it doesn't match the given pattern. */ |
1152 | static void | | 1152 | static void |
1153 | ModifyWord_NoMatch(const char *word, SepBuf *buf, void *data) | | 1153 | ModifyWord_NoMatch(const char *word, SepBuf *buf, void *data) |
1154 | { | | 1154 | { |
1155 | const char *pattern = data; | | 1155 | const char *pattern = data; |
1156 | if (!Str_Match(word, pattern)) | | 1156 | if (!Str_Match(word, pattern)) |
1157 | SepBuf_AddBytes(buf, word, strlen(word)); | | 1157 | SepBuf_AddBytes(buf, word, strlen(word)); |
1158 | } | | 1158 | } |
1159 | | | 1159 | |
1160 | #ifdef SYSVVARSUB | | 1160 | #ifdef SYSVVARSUB |
1161 | /*- | | 1161 | /*- |
1162 | *----------------------------------------------------------------------- | | 1162 | *----------------------------------------------------------------------- |
1163 | * Str_SYSVMatch -- | | 1163 | * Str_SYSVMatch -- |
1164 | * Check word against pattern for a match (% is wild), | | 1164 | * Check word against pattern for a match (% is wild), |
1165 | * | | 1165 | * |
1166 | * Input: | | 1166 | * Input: |
1167 | * word Word to examine | | 1167 | * word Word to examine |
1168 | * pattern Pattern to examine against | | 1168 | * pattern Pattern to examine against |
1169 | * len Number of characters to substitute | | 1169 | * len Number of characters to substitute |
1170 | * | | 1170 | * |
1171 | * Results: | | 1171 | * Results: |
1172 | * Returns the beginning position of a match or null. The number | | 1172 | * Returns the beginning position of a match or null. The number |
1173 | * of characters matched is returned in len. | | 1173 | * of characters matched is returned in len. |
1174 | *----------------------------------------------------------------------- | | 1174 | *----------------------------------------------------------------------- |
1175 | */ | | 1175 | */ |
1176 | static const char * | | 1176 | static const char * |
1177 | Str_SYSVMatch(const char *word, const char *pattern, size_t *len, | | 1177 | Str_SYSVMatch(const char *word, const char *pattern, size_t *len, |
1178 | Boolean *hasPercent) | | 1178 | Boolean *hasPercent) |
1179 | { | | 1179 | { |
1180 | const char *p = pattern; | | 1180 | const char *p = pattern; |
1181 | const char *w = word; | | 1181 | const char *w = word; |
1182 | const char *m; | | 1182 | const char *m; |
1183 | | | 1183 | |
1184 | *hasPercent = FALSE; | | 1184 | *hasPercent = FALSE; |
1185 | if (*p == '\0') { | | 1185 | if (*p == '\0') { |
1186 | /* Null pattern is the whole string */ | | 1186 | /* Null pattern is the whole string */ |
1187 | *len = strlen(w); | | 1187 | *len = strlen(w); |
1188 | return w; | | 1188 | return w; |
1189 | } | | 1189 | } |
1190 | | | 1190 | |
1191 | if ((m = strchr(p, '%')) != NULL) { | | 1191 | if ((m = strchr(p, '%')) != NULL) { |
1192 | *hasPercent = TRUE; | | 1192 | *hasPercent = TRUE; |
1193 | if (*w == '\0') { | | 1193 | if (*w == '\0') { |
1194 | /* empty word does not match pattern */ | | 1194 | /* empty word does not match pattern */ |
1195 | return NULL; | | 1195 | return NULL; |
1196 | } | | 1196 | } |
1197 | /* check that the prefix matches */ | | 1197 | /* check that the prefix matches */ |
1198 | for (; p != m && *w && *w == *p; w++, p++) | | 1198 | for (; p != m && *w && *w == *p; w++, p++) |
1199 | continue; | | 1199 | continue; |
1200 | | | 1200 | |
1201 | if (p != m) | | 1201 | if (p != m) |
1202 | return NULL; /* No match */ | | 1202 | return NULL; /* No match */ |
1203 | | | 1203 | |
1204 | if (*++p == '\0') { | | 1204 | if (*++p == '\0') { |
1205 | /* No more pattern, return the rest of the string */ | | 1205 | /* No more pattern, return the rest of the string */ |
1206 | *len = strlen(w); | | 1206 | *len = strlen(w); |
1207 | return w; | | 1207 | return w; |
1208 | } | | 1208 | } |
1209 | } | | 1209 | } |
1210 | | | 1210 | |
1211 | m = w; | | 1211 | m = w; |
1212 | | | 1212 | |
1213 | /* Find a matching tail */ | | 1213 | /* Find a matching tail */ |
1214 | do { | | 1214 | do { |
1215 | if (strcmp(p, w) == 0) { | | 1215 | if (strcmp(p, w) == 0) { |
1216 | *len = w - m; | | 1216 | *len = w - m; |
1217 | return m; | | 1217 | return m; |
1218 | } | | 1218 | } |
1219 | } while (*w++ != '\0'); | | 1219 | } while (*w++ != '\0'); |
1220 | | | 1220 | |
1221 | return NULL; | | 1221 | return NULL; |
1222 | } | | 1222 | } |
1223 | | | 1223 | |
1224 | | | 1224 | |
1225 | /*- | | 1225 | /*- |
1226 | *----------------------------------------------------------------------- | | 1226 | *----------------------------------------------------------------------- |
1227 | * Str_SYSVSubst -- | | 1227 | * Str_SYSVSubst -- |
1228 | * Substitute '%' on the pattern with len characters from src. | | 1228 | * Substitute '%' on the pattern with len characters from src. |
1229 | * If the pattern does not contain a '%' prepend len characters | | 1229 | * If the pattern does not contain a '%' prepend len characters |
1230 | * from src. | | 1230 | * from src. |
1231 | * | | 1231 | * |
1232 | * Side Effects: | | 1232 | * Side Effects: |
1233 | * Places result on buf | | 1233 | * Places result on buf |
1234 | *----------------------------------------------------------------------- | | 1234 | *----------------------------------------------------------------------- |
1235 | */ | | 1235 | */ |
1236 | static void | | 1236 | static void |
1237 | Str_SYSVSubst(SepBuf *buf, const char *pat, const char *src, size_t len, | | 1237 | Str_SYSVSubst(SepBuf *buf, const char *pat, const char *src, size_t len, |
1238 | Boolean lhsHasPercent) | | 1238 | Boolean lhsHasPercent) |
1239 | { | | 1239 | { |
1240 | const char *m; | | 1240 | const char *m; |
1241 | | | 1241 | |
1242 | if ((m = strchr(pat, '%')) != NULL && lhsHasPercent) { | | 1242 | if ((m = strchr(pat, '%')) != NULL && lhsHasPercent) { |
1243 | /* Copy the prefix */ | | 1243 | /* Copy the prefix */ |
1244 | SepBuf_AddBytes(buf, pat, m - pat); | | 1244 | SepBuf_AddBytes(buf, pat, m - pat); |
1245 | /* skip the % */ | | 1245 | /* skip the % */ |
1246 | pat = m + 1; | | 1246 | pat = m + 1; |
1247 | } | | 1247 | } |
1248 | if (m != NULL || !lhsHasPercent) { | | 1248 | if (m != NULL || !lhsHasPercent) { |
1249 | /* Copy the pattern */ | | 1249 | /* Copy the pattern */ |
1250 | SepBuf_AddBytes(buf, src, len); | | 1250 | SepBuf_AddBytes(buf, src, len); |
1251 | } | | 1251 | } |
1252 | | | 1252 | |
1253 | /* append the rest */ | | 1253 | /* append the rest */ |
1254 | SepBuf_AddBytes(buf, pat, strlen(pat)); | | 1254 | SepBuf_AddBytes(buf, pat, strlen(pat)); |
1255 | } | | 1255 | } |
1256 | | | 1256 | |
1257 | | | 1257 | |
1258 | typedef struct { | | 1258 | typedef struct { |
1259 | GNode *ctx; | | 1259 | GNode *ctx; |
1260 | const char *lhs; | | 1260 | const char *lhs; |
1261 | const char *rhs; | | 1261 | const char *rhs; |
1262 | } ModifyWord_SYSVSubstArgs; | | 1262 | } ModifyWord_SYSVSubstArgs; |
1263 | | | 1263 | |
1264 | /* Callback for ModifyWords to implement the :%.from=%.to modifier. */ | | 1264 | /* Callback for ModifyWords to implement the :%.from=%.to modifier. */ |
1265 | static void | | 1265 | static void |
1266 | ModifyWord_SYSVSubst(const char *word, SepBuf *buf, void *data) | | 1266 | ModifyWord_SYSVSubst(const char *word, SepBuf *buf, void *data) |
1267 | { | | 1267 | { |
1268 | const ModifyWord_SYSVSubstArgs *args = data; | | 1268 | const ModifyWord_SYSVSubstArgs *args = data; |
1269 | | | 1269 | |
1270 | size_t len; | | 1270 | size_t len; |
1271 | Boolean hasPercent; | | 1271 | Boolean hasPercent; |
1272 | const char *ptr = Str_SYSVMatch(word, args->lhs, &len, &hasPercent); | | 1272 | const char *ptr = Str_SYSVMatch(word, args->lhs, &len, &hasPercent); |
1273 | if (ptr != NULL) { | | 1273 | if (ptr != NULL) { |
1274 | char *varexp = Var_Subst(NULL, args->rhs, args->ctx, VARE_WANTRES); | | 1274 | char *varexp = Var_Subst(NULL, args->rhs, args->ctx, VARE_WANTRES); |
1275 | Str_SYSVSubst(buf, varexp, ptr, len, hasPercent); | | 1275 | Str_SYSVSubst(buf, varexp, ptr, len, hasPercent); |
1276 | free(varexp); | | 1276 | free(varexp); |
1277 | } else { | | 1277 | } else { |
1278 | SepBuf_AddBytes(buf, word, strlen(word)); | | 1278 | SepBuf_AddBytes(buf, word, strlen(word)); |
1279 | } | | 1279 | } |
1280 | } | | 1280 | } |
1281 | #endif | | 1281 | #endif |
1282 | | | 1282 | |
1283 | | | 1283 | |
1284 | typedef struct { | | 1284 | typedef struct { |
1285 | const char *lhs; | | 1285 | const char *lhs; |
1286 | size_t lhsLen; | | 1286 | size_t lhsLen; |
1287 | const char *rhs; | | 1287 | const char *rhs; |
1288 | size_t rhsLen; | | 1288 | size_t rhsLen; |
1289 | VarPatternFlags pflags; | | 1289 | VarPatternFlags pflags; |
1290 | } ModifyWord_SubstArgs; | | 1290 | } ModifyWord_SubstArgs; |
1291 | | | 1291 | |
1292 | /* Callback for ModifyWords to implement the :S,from,to, modifier. | | 1292 | /* Callback for ModifyWords to implement the :S,from,to, modifier. |
1293 | * Perform a string substitution on the given word. */ | | 1293 | * Perform a string substitution on the given word. */ |
1294 | static void | | 1294 | static void |
1295 | ModifyWord_Subst(const char *word, SepBuf *buf, void *data) | | 1295 | ModifyWord_Subst(const char *word, SepBuf *buf, void *data) |
1296 | { | | 1296 | { |
1297 | size_t wordLen = strlen(word); | | 1297 | size_t wordLen = strlen(word); |
1298 | ModifyWord_SubstArgs *args = data; | | 1298 | ModifyWord_SubstArgs *args = data; |
1299 | const VarPatternFlags pflags = args->pflags; | | 1299 | const VarPatternFlags pflags = args->pflags; |
1300 | | | 1300 | |
1301 | if ((pflags & (VARP_SUB_ONE | VARP_SUB_MATCHED)) == | | 1301 | if ((pflags & (VARP_SUB_ONE | VARP_SUB_MATCHED)) == |
1302 | (VARP_SUB_ONE | VARP_SUB_MATCHED)) | | 1302 | (VARP_SUB_ONE | VARP_SUB_MATCHED)) |
1303 | goto nosub; | | 1303 | goto nosub; |
1304 | | | 1304 | |
1305 | if (args->pflags & VARP_ANCHOR_START) { | | 1305 | if (args->pflags & VARP_ANCHOR_START) { |
1306 | if (wordLen < args->lhsLen || | | 1306 | if (wordLen < args->lhsLen || |
1307 | memcmp(word, args->lhs, args->lhsLen) != 0) | | 1307 | memcmp(word, args->lhs, args->lhsLen) != 0) |
1308 | goto nosub; | | 1308 | goto nosub; |
1309 | | | 1309 | |
1310 | if (args->pflags & VARP_ANCHOR_END) { | | 1310 | if (args->pflags & VARP_ANCHOR_END) { |
1311 | if (wordLen != args->lhsLen) | | 1311 | if (wordLen != args->lhsLen) |
1312 | goto nosub; | | 1312 | goto nosub; |
1313 | | | 1313 | |
1314 | SepBuf_AddBytes(buf, args->rhs, args->rhsLen); | | 1314 | SepBuf_AddBytes(buf, args->rhs, args->rhsLen); |
1315 | args->pflags |= VARP_SUB_MATCHED; | | 1315 | args->pflags |= VARP_SUB_MATCHED; |
1316 | } else { | | 1316 | } else { |
1317 | SepBuf_AddBytes(buf, args->rhs, args->rhsLen); | | 1317 | SepBuf_AddBytes(buf, args->rhs, args->rhsLen); |
1318 | SepBuf_AddBytes(buf, word + args->lhsLen, wordLen - args->lhsLen); | | 1318 | SepBuf_AddBytes(buf, word + args->lhsLen, wordLen - args->lhsLen); |
1319 | args->pflags |= VARP_SUB_MATCHED; | | 1319 | args->pflags |= VARP_SUB_MATCHED; |
1320 | } | | 1320 | } |
1321 | return; | | 1321 | return; |
1322 | } | | 1322 | } |
1323 | | | 1323 | |
1324 | if (args->pflags & VARP_ANCHOR_END) { | | 1324 | if (args->pflags & VARP_ANCHOR_END) { |
1325 | if (wordLen < args->lhsLen) | | 1325 | if (wordLen < args->lhsLen) |
1326 | goto nosub; | | 1326 | goto nosub; |
1327 | const char *start = word + (wordLen - args->lhsLen); | | 1327 | const char *start = word + (wordLen - args->lhsLen); |
1328 | if (memcmp(start, args->lhs, args->lhsLen) != 0) | | 1328 | if (memcmp(start, args->lhs, args->lhsLen) != 0) |
1329 | goto nosub; | | 1329 | goto nosub; |
1330 | | | 1330 | |
1331 | SepBuf_AddBytes(buf, word, start - word); | | 1331 | SepBuf_AddBytes(buf, word, start - word); |
1332 | SepBuf_AddBytes(buf, args->rhs, args->rhsLen); | | 1332 | SepBuf_AddBytes(buf, args->rhs, args->rhsLen); |
1333 | args->pflags |= VARP_SUB_MATCHED; | | 1333 | args->pflags |= VARP_SUB_MATCHED; |
1334 | return; | | 1334 | return; |
1335 | } | | 1335 | } |
1336 | | | 1336 | |
1337 | /* unanchored */ | | 1337 | /* unanchored */ |
1338 | const char *cp; | | 1338 | const char *cp; |
1339 | while ((cp = Str_FindSubstring(word, args->lhs)) != NULL) { | | 1339 | while ((cp = Str_FindSubstring(word, args->lhs)) != NULL) { |
1340 | SepBuf_AddBytes(buf, word, cp - word); | | 1340 | SepBuf_AddBytes(buf, word, cp - word); |
1341 | SepBuf_AddBytes(buf, args->rhs, args->rhsLen); | | 1341 | SepBuf_AddBytes(buf, args->rhs, args->rhsLen); |
| | | 1342 | args->pflags |= VARP_SUB_MATCHED; |
1342 | wordLen -= (cp - word) + args->lhsLen; | | 1343 | wordLen -= (cp - word) + args->lhsLen; |
1343 | word = cp + args->lhsLen; | | 1344 | word = cp + args->lhsLen; |
1344 | if (wordLen == 0 || !(args->pflags & VARP_SUB_GLOBAL)) | | 1345 | if (wordLen == 0 || !(args->pflags & VARP_SUB_GLOBAL)) |
1345 | break; | | 1346 | break; |
1346 | args->pflags |= VARP_SUB_MATCHED; | | | |
1347 | } | | 1347 | } |
1348 | nosub: | | 1348 | nosub: |
1349 | SepBuf_AddBytes(buf, word, wordLen); | | 1349 | SepBuf_AddBytes(buf, word, wordLen); |
1350 | } | | 1350 | } |
1351 | | | 1351 | |
1352 | #ifndef NO_REGEX | | 1352 | #ifndef NO_REGEX |
1353 | /*- | | 1353 | /*- |
1354 | *----------------------------------------------------------------------- | | 1354 | *----------------------------------------------------------------------- |
1355 | * VarREError -- | | 1355 | * VarREError -- |
1356 | * Print the error caused by a regcomp or regexec call. | | 1356 | * Print the error caused by a regcomp or regexec call. |
1357 | * | | 1357 | * |
1358 | * Side Effects: | | 1358 | * Side Effects: |
1359 | * An error gets printed. | | 1359 | * An error gets printed. |
1360 | * | | 1360 | * |
1361 | *----------------------------------------------------------------------- | | 1361 | *----------------------------------------------------------------------- |
1362 | */ | | 1362 | */ |
1363 | static void | | 1363 | static void |
1364 | VarREError(int reerr, regex_t *pat, const char *str) | | 1364 | VarREError(int reerr, regex_t *pat, const char *str) |
1365 | { | | 1365 | { |
1366 | char *errbuf; | | 1366 | char *errbuf; |
1367 | int errlen; | | 1367 | int errlen; |
1368 | | | 1368 | |
1369 | errlen = regerror(reerr, pat, 0, 0); | | 1369 | errlen = regerror(reerr, pat, 0, 0); |
1370 | errbuf = bmake_malloc(errlen); | | 1370 | errbuf = bmake_malloc(errlen); |
1371 | regerror(reerr, pat, errbuf, errlen); | | 1371 | regerror(reerr, pat, errbuf, errlen); |
1372 | Error("%s: %s", str, errbuf); | | 1372 | Error("%s: %s", str, errbuf); |
1373 | free(errbuf); | | 1373 | free(errbuf); |
1374 | } | | 1374 | } |
1375 | | | 1375 | |
1376 | typedef struct { | | 1376 | typedef struct { |
1377 | regex_t re; | | 1377 | regex_t re; |
1378 | int nsub; | | 1378 | int nsub; |
1379 | char *replace; | | 1379 | char *replace; |
1380 | VarPatternFlags pflags; | | 1380 | VarPatternFlags pflags; |
1381 | } ModifyWord_SubstRegexArgs; | | 1381 | } ModifyWord_SubstRegexArgs; |
1382 | | | 1382 | |
1383 | /* Callback for ModifyWords to implement the :C/from/to/ modifier. | | 1383 | /* Callback for ModifyWords to implement the :C/from/to/ modifier. |
1384 | * Perform a regex substitution on the given word. */ | | 1384 | * Perform a regex substitution on the given word. */ |
1385 | static void | | 1385 | static void |
1386 | ModifyWord_SubstRegex(const char *word, SepBuf *buf, void *data) | | 1386 | ModifyWord_SubstRegex(const char *word, SepBuf *buf, void *data) |
1387 | { | | 1387 | { |
1388 | ModifyWord_SubstRegexArgs *args = data; | | 1388 | ModifyWord_SubstRegexArgs *args = data; |
1389 | int xrv; | | 1389 | int xrv; |
1390 | const char *wp = word; | | 1390 | const char *wp = word; |
1391 | char *rp; | | 1391 | char *rp; |
1392 | int flags = 0; | | 1392 | int flags = 0; |
1393 | regmatch_t m[10]; | | 1393 | regmatch_t m[10]; |
1394 | | | 1394 | |
1395 | if ((args->pflags & VARP_SUB_ONE) && (args->pflags & VARP_SUB_MATCHED)) | | 1395 | if ((args->pflags & VARP_SUB_ONE) && (args->pflags & VARP_SUB_MATCHED)) |
1396 | goto nosub; | | 1396 | goto nosub; |
1397 | | | 1397 | |
1398 | tryagain: | | 1398 | tryagain: |
1399 | xrv = regexec(&args->re, wp, args->nsub, m, flags); | | 1399 | xrv = regexec(&args->re, wp, args->nsub, m, flags); |
1400 | | | 1400 | |
1401 | switch (xrv) { | | 1401 | switch (xrv) { |
1402 | case 0: | | 1402 | case 0: |
1403 | args->pflags |= VARP_SUB_MATCHED; | | 1403 | args->pflags |= VARP_SUB_MATCHED; |
1404 | SepBuf_AddBytes(buf, wp, m[0].rm_so); | | 1404 | SepBuf_AddBytes(buf, wp, m[0].rm_so); |
1405 | | | 1405 | |
1406 | for (rp = args->replace; *rp; rp++) { | | 1406 | for (rp = args->replace; *rp; rp++) { |
1407 | if (*rp == '\\' && (rp[1] == '&' || rp[1] == '\\')) { | | 1407 | if (*rp == '\\' && (rp[1] == '&' || rp[1] == '\\')) { |
1408 | SepBuf_AddBytes(buf, rp + 1, 1); | | 1408 | SepBuf_AddBytes(buf, rp + 1, 1); |
1409 | rp++; | | 1409 | rp++; |
1410 | } else if (*rp == '&' || | | 1410 | } else if (*rp == '&' || |
1411 | (*rp == '\\' && isdigit((unsigned char)rp[1]))) { | | 1411 | (*rp == '\\' && isdigit((unsigned char)rp[1]))) { |
1412 | int n; | | 1412 | int n; |
1413 | char errstr[3]; | | 1413 | char errstr[3]; |
1414 | | | 1414 | |
1415 | if (*rp == '&') { | | 1415 | if (*rp == '&') { |
1416 | n = 0; | | 1416 | n = 0; |
1417 | errstr[0] = '&'; | | 1417 | errstr[0] = '&'; |
1418 | errstr[1] = '\0'; | | 1418 | errstr[1] = '\0'; |
1419 | } else { | | 1419 | } else { |
1420 | n = rp[1] - '0'; | | 1420 | n = rp[1] - '0'; |
1421 | errstr[0] = '\\'; | | 1421 | errstr[0] = '\\'; |
1422 | errstr[1] = rp[1]; | | 1422 | errstr[1] = rp[1]; |
1423 | errstr[2] = '\0'; | | 1423 | errstr[2] = '\0'; |
1424 | rp++; | | 1424 | rp++; |
1425 | } | | 1425 | } |
1426 | | | 1426 | |
1427 | if (n >= args->nsub) { | | 1427 | if (n >= args->nsub) { |
1428 | Error("No subexpression %s", errstr); | | 1428 | Error("No subexpression %s", errstr); |
1429 | } else if (m[n].rm_so == -1 && m[n].rm_eo == -1) { | | 1429 | } else if (m[n].rm_so == -1 && m[n].rm_eo == -1) { |
1430 | Error("No match for subexpression %s", errstr); | | 1430 | Error("No match for subexpression %s", errstr); |
1431 | } else { | | 1431 | } else { |
1432 | SepBuf_AddBytes(buf, wp + m[n].rm_so, | | 1432 | SepBuf_AddBytes(buf, wp + m[n].rm_so, |
1433 | m[n].rm_eo - m[n].rm_so); | | 1433 | m[n].rm_eo - m[n].rm_so); |
1434 | } | | 1434 | } |
1435 | | | 1435 | |
1436 | } else { | | 1436 | } else { |
1437 | SepBuf_AddBytes(buf, rp, 1); | | 1437 | SepBuf_AddBytes(buf, rp, 1); |
1438 | } | | 1438 | } |
1439 | } | | 1439 | } |
1440 | wp += m[0].rm_eo; | | 1440 | wp += m[0].rm_eo; |
1441 | if (args->pflags & VARP_SUB_GLOBAL) { | | 1441 | if (args->pflags & VARP_SUB_GLOBAL) { |
1442 | flags |= REG_NOTBOL; | | 1442 | flags |= REG_NOTBOL; |
1443 | if (m[0].rm_so == 0 && m[0].rm_eo == 0) { | | 1443 | if (m[0].rm_so == 0 && m[0].rm_eo == 0) { |
1444 | SepBuf_AddBytes(buf, wp, 1); | | 1444 | SepBuf_AddBytes(buf, wp, 1); |
1445 | wp++; | | 1445 | wp++; |
1446 | } | | 1446 | } |
1447 | if (*wp) | | 1447 | if (*wp) |
1448 | goto tryagain; | | 1448 | goto tryagain; |
1449 | } | | 1449 | } |
1450 | if (*wp) { | | 1450 | if (*wp) { |
1451 | SepBuf_AddBytes(buf, wp, strlen(wp)); | | 1451 | SepBuf_AddBytes(buf, wp, strlen(wp)); |
1452 | } | | 1452 | } |
1453 | break; | | 1453 | break; |
1454 | default: | | 1454 | default: |
1455 | VarREError(xrv, &args->re, "Unexpected regex error"); | | 1455 | VarREError(xrv, &args->re, "Unexpected regex error"); |
1456 | /* fall through */ | | 1456 | /* fall through */ |
1457 | case REG_NOMATCH: | | 1457 | case REG_NOMATCH: |
1458 | nosub: | | 1458 | nosub: |
1459 | SepBuf_AddBytes(buf, wp, strlen(wp)); | | 1459 | SepBuf_AddBytes(buf, wp, strlen(wp)); |
1460 | break; | | 1460 | break; |
1461 | } | | 1461 | } |
1462 | } | | 1462 | } |
1463 | #endif | | 1463 | #endif |
1464 | | | 1464 | |
1465 | | | 1465 | |
1466 | typedef struct { | | 1466 | typedef struct { |
1467 | GNode *ctx; | | 1467 | GNode *ctx; |
1468 | char *tvar; /* name of temporary variable */ | | 1468 | char *tvar; /* name of temporary variable */ |
1469 | char *str; /* string to expand */ | | 1469 | char *str; /* string to expand */ |
1470 | VarEvalFlags eflags; | | 1470 | VarEvalFlags eflags; |
1471 | } ModifyWord_LoopArgs; | | 1471 | } ModifyWord_LoopArgs; |
1472 | | | 1472 | |
1473 | /* Callback for ModifyWords to implement the :@var@...@ modifier of ODE make. */ | | 1473 | /* Callback for ModifyWords to implement the :@var@...@ modifier of ODE make. */ |
1474 | static void | | 1474 | static void |
1475 | ModifyWord_Loop(const char *word, SepBuf *buf, void *data) | | 1475 | ModifyWord_Loop(const char *word, SepBuf *buf, void *data) |
1476 | { | | 1476 | { |
1477 | if (word[0] == '\0') | | 1477 | if (word[0] == '\0') |
1478 | return; | | 1478 | return; |
1479 | | | 1479 | |
1480 | const ModifyWord_LoopArgs *args = data; | | 1480 | const ModifyWord_LoopArgs *args = data; |
1481 | Var_Set_with_flags(args->tvar, word, args->ctx, VAR_NO_EXPORT); | | 1481 | Var_Set_with_flags(args->tvar, word, args->ctx, VAR_NO_EXPORT); |
1482 | char *s = Var_Subst(NULL, args->str, args->ctx, args->eflags); | | 1482 | char *s = Var_Subst(NULL, args->str, args->ctx, args->eflags); |
1483 | if (DEBUG(VAR)) { | | 1483 | if (DEBUG(VAR)) { |
1484 | fprintf(debug_file, | | 1484 | fprintf(debug_file, |
1485 | "ModifyWord_Loop: in \"%s\", replace \"%s\" with \"%s\" " | | 1485 | "ModifyWord_Loop: in \"%s\", replace \"%s\" with \"%s\" " |
1486 | "to \"%s\"\n", | | 1486 | "to \"%s\"\n", |
1487 | word, args->tvar, args->str, s ? s : "(null)"); | | 1487 | word, args->tvar, args->str, s ? s : "(null)"); |
1488 | } | | 1488 | } |
1489 | | | 1489 | |
1490 | if (s != NULL && s[0] != '\0') { | | 1490 | if (s != NULL && s[0] != '\0') { |
1491 | if (s[0] == '\n' || (buf->buf.count > 0 && | | 1491 | if (s[0] == '\n' || (buf->buf.count > 0 && |
1492 | buf->buf.buffer[buf->buf.count - 1] == '\n')) | | 1492 | buf->buf.buffer[buf->buf.count - 1] == '\n')) |
1493 | buf->needSep = FALSE; | | 1493 | buf->needSep = FALSE; |
1494 | SepBuf_AddBytes(buf, s, strlen(s)); | | 1494 | SepBuf_AddBytes(buf, s, strlen(s)); |
1495 | } | | 1495 | } |
1496 | free(s); | | 1496 | free(s); |
1497 | } | | 1497 | } |
1498 | | | 1498 | |
1499 | | | 1499 | |
1500 | /*- | | 1500 | /*- |
1501 | * Implements the :[first..last] modifier. | | 1501 | * Implements the :[first..last] modifier. |
1502 | * This is a special case of ModifyWords since we want to be able | | 1502 | * This is a special case of ModifyWords since we want to be able |
1503 | * to scan the list backwards if first > last. | | 1503 | * to scan the list backwards if first > last. |
1504 | */ | | 1504 | */ |
1505 | static char * | | 1505 | static char * |
1506 | VarSelectWords(Byte sep, Boolean oneBigWord, const char *str, int first, | | 1506 | VarSelectWords(Byte sep, Boolean oneBigWord, const char *str, int first, |
1507 | int last) | | 1507 | int last) |
1508 | { | | 1508 | { |
1509 | SepBuf buf; | | 1509 | SepBuf buf; |
1510 | char **av; /* word list */ | | 1510 | char **av; /* word list */ |
1511 | char *as; /* word list memory */ | | 1511 | char *as; /* word list memory */ |
1512 | int ac, i; | | 1512 | int ac, i; |
1513 | int start, end, step; | | 1513 | int start, end, step; |
1514 | | | 1514 | |
1515 | SepBuf_Init(&buf, sep); | | 1515 | SepBuf_Init(&buf, sep); |
1516 | | | 1516 | |
1517 | if (oneBigWord) { | | 1517 | if (oneBigWord) { |
1518 | /* fake what brk_string() would do if there were only one word */ | | 1518 | /* fake what brk_string() would do if there were only one word */ |
1519 | ac = 1; | | 1519 | ac = 1; |
1520 | av = bmake_malloc((ac + 1) * sizeof(char *)); | | 1520 | av = bmake_malloc((ac + 1) * sizeof(char *)); |
1521 | as = bmake_strdup(str); | | 1521 | as = bmake_strdup(str); |
1522 | av[0] = as; | | 1522 | av[0] = as; |
1523 | av[1] = NULL; | | 1523 | av[1] = NULL; |
1524 | } else { | | 1524 | } else { |
1525 | av = brk_string(str, &ac, FALSE, &as); | | 1525 | av = brk_string(str, &ac, FALSE, &as); |
1526 | } | | 1526 | } |
1527 | | | 1527 | |
1528 | /* | | 1528 | /* |
1529 | * Now sanitize seldata. | | 1529 | * Now sanitize seldata. |
1530 | * If seldata->start or seldata->end are negative, convert them to | | 1530 | * If seldata->start or seldata->end are negative, convert them to |
1531 | * the positive equivalents (-1 gets converted to argc, -2 gets | | 1531 | * the positive equivalents (-1 gets converted to argc, -2 gets |
1532 | * converted to (argc-1), etc.). | | 1532 | * converted to (argc-1), etc.). |
1533 | */ | | 1533 | */ |
1534 | if (first < 0) | | 1534 | if (first < 0) |
1535 | first += ac + 1; | | 1535 | first += ac + 1; |
1536 | if (last < 0) | | 1536 | if (last < 0) |
1537 | last += ac + 1; | | 1537 | last += ac + 1; |
1538 | | | 1538 | |
1539 | /* | | 1539 | /* |
1540 | * We avoid scanning more of the list than we need to. | | 1540 | * We avoid scanning more of the list than we need to. |
1541 | */ | | 1541 | */ |
1542 | if (first > last) { | | 1542 | if (first > last) { |
1543 | start = MIN(ac, first) - 1; | | 1543 | start = MIN(ac, first) - 1; |
1544 | end = MAX(0, last - 1); | | 1544 | end = MAX(0, last - 1); |
1545 | step = -1; | | 1545 | step = -1; |
1546 | } else { | | 1546 | } else { |
1547 | start = MAX(0, first - 1); | | 1547 | start = MAX(0, first - 1); |
1548 | end = MIN(ac, last); | | 1548 | end = MIN(ac, last); |
1549 | step = 1; | | 1549 | step = 1; |
1550 | } | | 1550 | } |
1551 | | | 1551 | |
1552 | for (i = start; (step < 0) == (i >= end); i += step) { | | 1552 | for (i = start; (step < 0) == (i >= end); i += step) { |
1553 | SepBuf_AddBytes(&buf, av[i], strlen(av[i])); | | 1553 | SepBuf_AddBytes(&buf, av[i], strlen(av[i])); |
1554 | SepBuf_Sep(&buf); | | 1554 | SepBuf_Sep(&buf); |
1555 | } | | 1555 | } |
1556 | | | 1556 | |
1557 | free(as); | | 1557 | free(as); |
1558 | free(av); | | 1558 | free(av); |
1559 | | | 1559 | |
1560 | return SepBuf_Destroy(&buf, FALSE); | | 1560 | return SepBuf_Destroy(&buf, FALSE); |
1561 | } | | 1561 | } |
1562 | | | 1562 | |
1563 | | | 1563 | |
1564 | /* Callback for ModifyWords to implement the :tA modifier. | | 1564 | /* Callback for ModifyWords to implement the :tA modifier. |
1565 | * Replace each word with the result of realpath() if successful. */ | | 1565 | * Replace each word with the result of realpath() if successful. */ |
1566 | static void | | 1566 | static void |
1567 | ModifyWord_Realpath(const char *word, SepBuf *buf, void *data MAKE_ATTR_UNUSED) | | 1567 | ModifyWord_Realpath(const char *word, SepBuf *buf, void *data MAKE_ATTR_UNUSED) |
1568 | { | | 1568 | { |
1569 | struct stat st; | | 1569 | struct stat st; |
1570 | char rbuf[MAXPATHLEN]; | | 1570 | char rbuf[MAXPATHLEN]; |
1571 | | | 1571 | |
1572 | char *rp = cached_realpath(word, rbuf); | | 1572 | char *rp = cached_realpath(word, rbuf); |
1573 | if (rp != NULL && *rp == '/' && stat(rp, &st) == 0) | | 1573 | if (rp != NULL && *rp == '/' && stat(rp, &st) == 0) |
1574 | word = rp; | | 1574 | word = rp; |
1575 | | | 1575 | |
1576 | SepBuf_AddBytes(buf, word, strlen(word)); | | 1576 | SepBuf_AddBytes(buf, word, strlen(word)); |
1577 | } | | 1577 | } |
1578 | | | 1578 | |
1579 | /*- | | 1579 | /*- |
1580 | *----------------------------------------------------------------------- | | 1580 | *----------------------------------------------------------------------- |
1581 | * Modify each of the words of the passed string using the given function. | | 1581 | * Modify each of the words of the passed string using the given function. |
1582 | * | | 1582 | * |
1583 | * Input: | | 1583 | * Input: |
1584 | * str String whose words should be modified | | 1584 | * str String whose words should be modified |
1585 | * modifyWord Function that modifies a single word | | 1585 | * modifyWord Function that modifies a single word |
1586 | * data Custom data for modifyWord | | 1586 | * data Custom data for modifyWord |
1587 | * | | 1587 | * |
1588 | * Results: | | 1588 | * Results: |
1589 | * A string of all the words modified appropriately. | | 1589 | * A string of all the words modified appropriately. |
1590 | *----------------------------------------------------------------------- | | 1590 | *----------------------------------------------------------------------- |
1591 | */ | | 1591 | */ |
1592 | static char * | | 1592 | static char * |
1593 | ModifyWords(GNode *ctx, Byte sep, Boolean oneBigWord, | | 1593 | ModifyWords(GNode *ctx, Byte sep, Boolean oneBigWord, |
1594 | const char *str, ModifyWordsCallback modifyWord, void *data) | | 1594 | const char *str, ModifyWordsCallback modifyWord, void *data) |
1595 | { | | 1595 | { |
1596 | SepBuf result; | | 1596 | SepBuf result; |
1597 | char **av; /* word list */ | | 1597 | char **av; /* word list */ |
1598 | char *as; /* word list memory */ | | 1598 | char *as; /* word list memory */ |
1599 | int ac, i; | | 1599 | int ac, i; |
1600 | | | 1600 | |
1601 | SepBuf_Init(&result, sep); | | 1601 | SepBuf_Init(&result, sep); |
1602 | | | 1602 | |
1603 | if (oneBigWord) { | | 1603 | if (oneBigWord) { |
1604 | /* fake what brk_string() would do if there were only one word */ | | 1604 | /* fake what brk_string() would do if there were only one word */ |
1605 | ac = 1; | | 1605 | ac = 1; |
1606 | av = bmake_malloc((ac + 1) * sizeof(char *)); | | 1606 | av = bmake_malloc((ac + 1) * sizeof(char *)); |
1607 | as = bmake_strdup(str); | | 1607 | as = bmake_strdup(str); |
1608 | av[0] = as; | | 1608 | av[0] = as; |
1609 | av[1] = NULL; | | 1609 | av[1] = NULL; |
1610 | } else { | | 1610 | } else { |
1611 | av = brk_string(str, &ac, FALSE, &as); | | 1611 | av = brk_string(str, &ac, FALSE, &as); |
1612 | } | | 1612 | } |
1613 | | | 1613 | |
1614 | if (DEBUG(VAR)) { | | 1614 | if (DEBUG(VAR)) { |
1615 | fprintf(debug_file, "ModifyWords: split \"%s\" into %d words\n", | | 1615 | fprintf(debug_file, "ModifyWords: split \"%s\" into %d words\n", |
1616 | str, ac); | | 1616 | str, ac); |
1617 | } | | 1617 | } |
1618 | | | 1618 | |
1619 | for (i = 0; i < ac; i++) { | | 1619 | for (i = 0; i < ac; i++) { |
1620 | size_t orig_count = result.buf.count; | | 1620 | size_t orig_count = result.buf.count; |
1621 | modifyWord(av[i], &result, data); | | 1621 | modifyWord(av[i], &result, data); |
1622 | size_t count = result.buf.count; | | 1622 | size_t count = result.buf.count; |
1623 | if (count != orig_count) | | 1623 | if (count != orig_count) |
1624 | SepBuf_Sep(&result); | | 1624 | SepBuf_Sep(&result); |
1625 | } | | 1625 | } |
1626 | | | 1626 | |
1627 | free(as); | | 1627 | free(as); |
1628 | free(av); | | 1628 | free(av); |
1629 | | | 1629 | |
1630 | return SepBuf_Destroy(&result, FALSE); | | 1630 | return SepBuf_Destroy(&result, FALSE); |
1631 | } | | 1631 | } |
1632 | | | 1632 | |
1633 | | | 1633 | |
1634 | static int | | 1634 | static int |
1635 | VarWordCompare(const void *a, const void *b) | | 1635 | VarWordCompare(const void *a, const void *b) |
1636 | { | | 1636 | { |
1637 | int r = strcmp(*(const char * const *)a, *(const char * const *)b); | | 1637 | int r = strcmp(*(const char * const *)a, *(const char * const *)b); |
1638 | return r; | | 1638 | return r; |
1639 | } | | 1639 | } |
1640 | | | 1640 | |
1641 | static int | | 1641 | static int |
1642 | VarWordCompareReverse(const void *a, const void *b) | | 1642 | VarWordCompareReverse(const void *a, const void *b) |
1643 | { | | 1643 | { |
1644 | int r = strcmp(*(const char * const *)b, *(const char * const *)a); | | 1644 | int r = strcmp(*(const char * const *)b, *(const char * const *)a); |
1645 | return r; | | 1645 | return r; |
1646 | } | | 1646 | } |
1647 | | | 1647 | |
1648 | /*- | | 1648 | /*- |
1649 | *----------------------------------------------------------------------- | | 1649 | *----------------------------------------------------------------------- |
1650 | * VarOrder -- | | 1650 | * VarOrder -- |
1651 | * Order the words in the string. | | 1651 | * Order the words in the string. |
1652 | * | | 1652 | * |
1653 | * Input: | | 1653 | * Input: |
1654 | * str String whose words should be sorted. | | 1654 | * str String whose words should be sorted. |
1655 | * otype How to order: s - sort, x - random. | | 1655 | * otype How to order: s - sort, x - random. |
1656 | * | | 1656 | * |
1657 | * Results: | | 1657 | * Results: |
1658 | * A string containing the words ordered. | | 1658 | * A string containing the words ordered. |
1659 | * | | 1659 | * |
1660 | * Side Effects: | | 1660 | * Side Effects: |
1661 | * None. | | 1661 | * None. |
1662 | * | | 1662 | * |
1663 | *----------------------------------------------------------------------- | | 1663 | *----------------------------------------------------------------------- |
1664 | */ | | 1664 | */ |
1665 | static char * | | 1665 | static char * |
1666 | VarOrder(const char *str, const char otype) | | 1666 | VarOrder(const char *str, const char otype) |
1667 | { | | 1667 | { |
1668 | Buffer buf; /* Buffer for the new string */ | | 1668 | Buffer buf; /* Buffer for the new string */ |
1669 | char **av; /* word list [first word does not count] */ | | 1669 | char **av; /* word list [first word does not count] */ |
1670 | char *as; /* word list memory */ | | 1670 | char *as; /* word list memory */ |
1671 | int ac, i; | | 1671 | int ac, i; |
1672 | | | 1672 | |
1673 | Buf_Init(&buf, 0); | | 1673 | Buf_Init(&buf, 0); |
1674 | | | 1674 | |
1675 | av = brk_string(str, &ac, FALSE, &as); | | 1675 | av = brk_string(str, &ac, FALSE, &as); |
1676 | | | 1676 | |
1677 | if (ac > 0) { | | 1677 | if (ac > 0) { |
1678 | switch (otype) { | | 1678 | switch (otype) { |
1679 | case 'r': /* reverse sort alphabetically */ | | 1679 | case 'r': /* reverse sort alphabetically */ |
1680 | qsort(av, ac, sizeof(char *), VarWordCompareReverse); | | 1680 | qsort(av, ac, sizeof(char *), VarWordCompareReverse); |
1681 | break; | | 1681 | break; |
1682 | case 's': /* sort alphabetically */ | | 1682 | case 's': /* sort alphabetically */ |
1683 | qsort(av, ac, sizeof(char *), VarWordCompare); | | 1683 | qsort(av, ac, sizeof(char *), VarWordCompare); |
1684 | break; | | 1684 | break; |
1685 | case 'x': /* randomize */ | | 1685 | case 'x': /* randomize */ |
1686 | { | | 1686 | { |
1687 | /* | | 1687 | /* |
1688 | * We will use [ac..2] range for mod factors. This will produce | | 1688 | * We will use [ac..2] range for mod factors. This will produce |
1689 | * random numbers in [(ac-1)..0] interval, and minimal | | 1689 | * random numbers in [(ac-1)..0] interval, and minimal |
1690 | * reasonable value for mod factor is 2 (the mod 1 will produce | | 1690 | * reasonable value for mod factor is 2 (the mod 1 will produce |
1691 | * 0 with probability 1). | | 1691 | * 0 with probability 1). |
1692 | */ | | 1692 | */ |
1693 | for (i = ac - 1; i > 0; i--) { | | 1693 | for (i = ac - 1; i > 0; i--) { |
1694 | int rndidx = random() % (i + 1); | | 1694 | int rndidx = random() % (i + 1); |
1695 | char *t = av[i]; | | 1695 | char *t = av[i]; |
1696 | av[i] = av[rndidx]; | | 1696 | av[i] = av[rndidx]; |
1697 | av[rndidx] = t; | | 1697 | av[rndidx] = t; |
1698 | } | | 1698 | } |
1699 | } | | 1699 | } |
1700 | } | | 1700 | } |
1701 | } | | 1701 | } |
1702 | | | 1702 | |
1703 | for (i = 0; i < ac; i++) { | | 1703 | for (i = 0; i < ac; i++) { |
1704 | Buf_AddBytes(&buf, strlen(av[i]), av[i]); | | 1704 | Buf_AddBytes(&buf, strlen(av[i]), av[i]); |
1705 | if (i != ac - 1) | | 1705 | if (i != ac - 1) |
1706 | Buf_AddByte(&buf, ' '); | | 1706 | Buf_AddByte(&buf, ' '); |
1707 | } | | 1707 | } |
1708 | | | 1708 | |
1709 | free(as); | | 1709 | free(as); |
1710 | free(av); | | 1710 | free(av); |
1711 | | | 1711 | |
1712 | return Buf_Destroy(&buf, FALSE); | | 1712 | return Buf_Destroy(&buf, FALSE); |
1713 | } | | 1713 | } |
1714 | | | 1714 | |
1715 | | | 1715 | |
1716 | /*- | | 1716 | /*- |
1717 | *----------------------------------------------------------------------- | | 1717 | *----------------------------------------------------------------------- |
1718 | * VarUniq -- | | 1718 | * VarUniq -- |
1719 | * Remove adjacent duplicate words. | | 1719 | * Remove adjacent duplicate words. |
1720 | * | | 1720 | * |
1721 | * Input: | | 1721 | * Input: |
1722 | * str String whose words should be sorted | | 1722 | * str String whose words should be sorted |
1723 | * | | 1723 | * |
1724 | * Results: | | 1724 | * Results: |
1725 | * A string containing the resulting words. | | 1725 | * A string containing the resulting words. |
1726 | * | | 1726 | * |
1727 | * Side Effects: | | 1727 | * Side Effects: |
1728 | * None. | | 1728 | * None. |
1729 | * | | 1729 | * |
1730 | *----------------------------------------------------------------------- | | 1730 | *----------------------------------------------------------------------- |
1731 | */ | | 1731 | */ |
1732 | static char * | | 1732 | static char * |
1733 | VarUniq(const char *str) | | 1733 | VarUniq(const char *str) |
1734 | { | | 1734 | { |
1735 | Buffer buf; /* Buffer for new string */ | | 1735 | Buffer buf; /* Buffer for new string */ |
1736 | char **av; /* List of words to affect */ | | 1736 | char **av; /* List of words to affect */ |
1737 | char *as; /* Word list memory */ | | 1737 | char *as; /* Word list memory */ |
1738 | int ac, i, j; | | 1738 | int ac, i, j; |
1739 | | | 1739 | |
1740 | Buf_Init(&buf, 0); | | 1740 | Buf_Init(&buf, 0); |
1741 | av = brk_string(str, &ac, FALSE, &as); | | 1741 | av = brk_string(str, &ac, FALSE, &as); |
1742 | | | 1742 | |
1743 | if (ac > 1) { | | 1743 | if (ac > 1) { |
1744 | for (j = 0, i = 1; i < ac; i++) | | 1744 | for (j = 0, i = 1; i < ac; i++) |
1745 | if (strcmp(av[i], av[j]) != 0 && (++j != i)) | | 1745 | if (strcmp(av[i], av[j]) != 0 && (++j != i)) |
1746 | av[j] = av[i]; | | 1746 | av[j] = av[i]; |
1747 | ac = j + 1; | | 1747 | ac = j + 1; |
1748 | } | | 1748 | } |
1749 | | | 1749 | |
1750 | for (i = 0; i < ac; i++) { | | 1750 | for (i = 0; i < ac; i++) { |
1751 | Buf_AddBytes(&buf, strlen(av[i]), av[i]); | | 1751 | Buf_AddBytes(&buf, strlen(av[i]), av[i]); |
1752 | if (i != ac - 1) | | 1752 | if (i != ac - 1) |
1753 | Buf_AddByte(&buf, ' '); | | 1753 | Buf_AddByte(&buf, ' '); |
1754 | } | | 1754 | } |
1755 | | | 1755 | |
1756 | free(as); | | 1756 | free(as); |
1757 | free(av); | | 1757 | free(av); |
1758 | | | 1758 | |
1759 | return Buf_Destroy(&buf, FALSE); | | 1759 | return Buf_Destroy(&buf, FALSE); |
1760 | } | | 1760 | } |
1761 | | | 1761 | |
1762 | /*- | | 1762 | /*- |
1763 | *----------------------------------------------------------------------- | | 1763 | *----------------------------------------------------------------------- |
1764 | * VarRange -- | | 1764 | * VarRange -- |
1765 | * Return an integer sequence | | 1765 | * Return an integer sequence |
1766 | * | | 1766 | * |
1767 | * Input: | | 1767 | * Input: |
1768 | * str String whose words provide default range | | 1768 | * str String whose words provide default range |
1769 | * ac range length, if 0 use str words | | 1769 | * ac range length, if 0 use str words |
1770 | * | | 1770 | * |
1771 | * Side Effects: | | 1771 | * Side Effects: |
1772 | * None. | | 1772 | * None. |
1773 | * | | 1773 | * |
1774 | *----------------------------------------------------------------------- | | 1774 | *----------------------------------------------------------------------- |
1775 | */ | | 1775 | */ |
1776 | static char * | | 1776 | static char * |
1777 | VarRange(const char *str, int ac) | | 1777 | VarRange(const char *str, int ac) |
1778 | { | | 1778 | { |
1779 | Buffer buf; /* Buffer for new string */ | | 1779 | Buffer buf; /* Buffer for new string */ |
1780 | char tmp[32]; /* each element */ | | 1780 | char tmp[32]; /* each element */ |
1781 | char **av; /* List of words to affect */ | | 1781 | char **av; /* List of words to affect */ |
1782 | char *as; /* Word list memory */ | | 1782 | char *as; /* Word list memory */ |
1783 | int i, n; | | 1783 | int i, n; |
1784 | | | 1784 | |
1785 | Buf_Init(&buf, 0); | | 1785 | Buf_Init(&buf, 0); |
1786 | if (ac > 0) { | | 1786 | if (ac > 0) { |
1787 | as = NULL; | | 1787 | as = NULL; |
1788 | av = NULL; | | 1788 | av = NULL; |
1789 | } else { | | 1789 | } else { |
1790 | av = brk_string(str, &ac, FALSE, &as); | | 1790 | av = brk_string(str, &ac, FALSE, &as); |
1791 | } | | 1791 | } |
1792 | for (i = 0; i < ac; i++) { | | 1792 | for (i = 0; i < ac; i++) { |
1793 | n = snprintf(tmp, sizeof(tmp), "%d", 1 + i); | | 1793 | n = snprintf(tmp, sizeof(tmp), "%d", 1 + i); |
1794 | if (n >= (int)sizeof(tmp)) | | 1794 | if (n >= (int)sizeof(tmp)) |
1795 | break; | | 1795 | break; |
1796 | Buf_AddBytes(&buf, n, tmp); | | 1796 | Buf_AddBytes(&buf, n, tmp); |
1797 | if (i != ac - 1) | | 1797 | if (i != ac - 1) |
1798 | Buf_AddByte(&buf, ' '); | | 1798 | Buf_AddByte(&buf, ' '); |
1799 | } | | 1799 | } |
1800 | | | 1800 | |
1801 | free(as); | | 1801 | free(as); |
1802 | free(av); | | 1802 | free(av); |
1803 | | | 1803 | |
1804 | return Buf_Destroy(&buf, FALSE); | | 1804 | return Buf_Destroy(&buf, FALSE); |
1805 | } | | 1805 | } |
1806 | | | 1806 | |
1807 | | | 1807 | |
1808 | /*- | | 1808 | /*- |
1809 | * Parse a text part of a modifier such as the "from" and "to" in :S/from/to/ | | 1809 | * Parse a text part of a modifier such as the "from" and "to" in :S/from/to/ |
1810 | * or the :@ modifier. Nested variables in the text are expanded unless | | 1810 | * or the :@ modifier. Nested variables in the text are expanded unless |
1811 | * VARE_NOSUBST is set. | | 1811 | * VARE_NOSUBST is set. |
1812 | * | | 1812 | * |
1813 | * The text part is parsed until the next delimiter. To escape the delimiter, | | 1813 | * The text part is parsed until the next delimiter. To escape the delimiter, |
1814 | * a backslash or a dollar, put a backslash before it. | | 1814 | * a backslash or a dollar, put a backslash before it. |
1815 | * | | 1815 | * |
1816 | * Return the expanded string or NULL if the delimiter was missing. | | 1816 | * Return the expanded string or NULL if the delimiter was missing. |
1817 | * If pattern is specified, handle escaped ampersands and replace unescaped | | 1817 | * If pattern is specified, handle escaped ampersands and replace unescaped |
1818 | * ampersands with the lhs of the pattern (for the :S and :C modifiers). | | 1818 | * ampersands with the lhs of the pattern (for the :S and :C modifiers). |
1819 | * | | 1819 | * |
1820 | * If length is specified, return the string length of the buffer. | | 1820 | * If length is specified, return the string length of the buffer. |
1821 | * If mpflags is specified and the last character of the pattern is a $, | | 1821 | * If mpflags is specified and the last character of the pattern is a $, |
1822 | * set the VARP_ANCHOR_END bit of mpflags. | | 1822 | * set the VARP_ANCHOR_END bit of mpflags. |
1823 | */ | | 1823 | */ |
1824 | static char * | | 1824 | static char * |
1825 | ParseModifierPart(GNode *ctxt, const char **tstr, int delim, | | 1825 | ParseModifierPart(GNode *ctxt, const char **tstr, int delim, |
1826 | VarEvalFlags eflags, VarPatternFlags *mpflags, | | 1826 | VarEvalFlags eflags, VarPatternFlags *mpflags, |
1827 | size_t *length, ModifyWord_SubstArgs *subst) | | 1827 | size_t *length, ModifyWord_SubstArgs *subst) |
1828 | { | | 1828 | { |
1829 | const char *cp; | | 1829 | const char *cp; |
1830 | char *rstr; | | 1830 | char *rstr; |
1831 | Buffer buf; | | 1831 | Buffer buf; |
1832 | size_t junk; | | 1832 | size_t junk; |
1833 | VarEvalFlags errnum = eflags & VARE_UNDEFERR; | | 1833 | VarEvalFlags errnum = eflags & VARE_UNDEFERR; |
1834 | | | 1834 | |
1835 | Buf_Init(&buf, 0); | | 1835 | Buf_Init(&buf, 0); |
1836 | if (length == NULL) | | 1836 | if (length == NULL) |
1837 | length = &junk; | | 1837 | length = &junk; |
1838 | | | 1838 | |
1839 | /* | | 1839 | /* |
1840 | * Skim through until the matching delimiter is found; | | 1840 | * Skim through until the matching delimiter is found; |
1841 | * pick up variable substitutions on the way. Also allow | | 1841 | * pick up variable substitutions on the way. Also allow |
1842 | * backslashes to quote the delimiter, $, and \, but don't | | 1842 | * backslashes to quote the delimiter, $, and \, but don't |
1843 | * touch other backslashes. | | 1843 | * touch other backslashes. |
1844 | */ | | 1844 | */ |
1845 | for (cp = *tstr; *cp != '\0' && *cp != delim; cp++) { | | 1845 | for (cp = *tstr; *cp != '\0' && *cp != delim; cp++) { |
1846 | Boolean is_escaped = cp[0] == '\\' && (cp[1] == delim || | | 1846 | Boolean is_escaped = cp[0] == '\\' && (cp[1] == delim || |
1847 | cp[1] == '\\' || cp[1] == '$' || (subst != NULL && cp[1] == '&')); | | 1847 | cp[1] == '\\' || cp[1] == '$' || (subst != NULL && cp[1] == '&')); |
1848 | if (is_escaped) { | | 1848 | if (is_escaped) { |
1849 | Buf_AddByte(&buf, cp[1]); | | 1849 | Buf_AddByte(&buf, cp[1]); |
1850 | cp++; | | 1850 | cp++; |
1851 | } else if (*cp == '$') { | | 1851 | } else if (*cp == '$') { |
1852 | if (cp[1] == delim) { /* Unescaped $ at end of pattern */ | | 1852 | if (cp[1] == delim) { /* Unescaped $ at end of pattern */ |
1853 | if (mpflags == NULL) | | 1853 | if (mpflags == NULL) |
1854 | Buf_AddByte(&buf, *cp); | | 1854 | Buf_AddByte(&buf, *cp); |
1855 | else | | 1855 | else |
1856 | *mpflags |= VARP_ANCHOR_END; | | 1856 | *mpflags |= VARP_ANCHOR_END; |
1857 | } else { | | 1857 | } else { |
1858 | if (!(eflags & VARE_NOSUBST)) { | | 1858 | if (!(eflags & VARE_NOSUBST)) { |
1859 | char *cp2; | | 1859 | char *cp2; |
1860 | int len; | | 1860 | int len; |
1861 | void *freeIt; | | 1861 | void *freeIt; |
1862 | | | 1862 | |
1863 | /* | | 1863 | /* |
1864 | * If unescaped dollar sign not before the | | 1864 | * If unescaped dollar sign not before the |
1865 | * delimiter, assume it's a variable | | 1865 | * delimiter, assume it's a variable |
1866 | * substitution and recurse. | | 1866 | * substitution and recurse. |
1867 | */ | | 1867 | */ |
1868 | cp2 = Var_Parse(cp, ctxt, errnum | (eflags & VARE_WANTRES), | | 1868 | cp2 = Var_Parse(cp, ctxt, errnum | (eflags & VARE_WANTRES), |
1869 | &len, &freeIt); | | 1869 | &len, &freeIt); |
1870 | Buf_AddBytes(&buf, strlen(cp2), cp2); | | 1870 | Buf_AddBytes(&buf, strlen(cp2), cp2); |
1871 | free(freeIt); | | 1871 | free(freeIt); |
1872 | cp += len - 1; | | 1872 | cp += len - 1; |
1873 | } else { | | 1873 | } else { |
1874 | const char *cp2 = &cp[1]; | | 1874 | const char *cp2 = &cp[1]; |
1875 | | | 1875 | |
1876 | if (*cp2 == PROPEN || *cp2 == BROPEN) { | | 1876 | if (*cp2 == PROPEN || *cp2 == BROPEN) { |
1877 | /* | | 1877 | /* |
1878 | * Find the end of this variable reference | | 1878 | * Find the end of this variable reference |
1879 | * and suck it in without further ado. | | 1879 | * and suck it in without further ado. |
1880 | * It will be interpreted later. | | 1880 | * It will be interpreted later. |
1881 | */ | | 1881 | */ |
1882 | int have = *cp2; | | 1882 | int have = *cp2; |
1883 | int want = (*cp2 == PROPEN) ? PRCLOSE : BRCLOSE; | | 1883 | int want = (*cp2 == PROPEN) ? PRCLOSE : BRCLOSE; |
1884 | int depth = 1; | | 1884 | int depth = 1; |
1885 | | | 1885 | |
1886 | for (++cp2; *cp2 != '\0' && depth > 0; ++cp2) { | | 1886 | for (++cp2; *cp2 != '\0' && depth > 0; ++cp2) { |
1887 | if (cp2[-1] != '\\') { | | 1887 | if (cp2[-1] != '\\') { |
1888 | if (*cp2 == have) | | 1888 | if (*cp2 == have) |
1889 | ++depth; | | 1889 | ++depth; |
1890 | if (*cp2 == want) | | 1890 | if (*cp2 == want) |
1891 | --depth; | | 1891 | --depth; |
1892 | } | | 1892 | } |
1893 | } | | 1893 | } |
1894 | Buf_AddBytes(&buf, cp2 - cp, cp); | | 1894 | Buf_AddBytes(&buf, cp2 - cp, cp); |
1895 | cp = --cp2; | | 1895 | cp = --cp2; |
1896 | } else | | 1896 | } else |
1897 | Buf_AddByte(&buf, *cp); | | 1897 | Buf_AddByte(&buf, *cp); |
1898 | } | | 1898 | } |
1899 | } | | 1899 | } |
1900 | } else if (subst != NULL && *cp == '&') | | 1900 | } else if (subst != NULL && *cp == '&') |
1901 | Buf_AddBytes(&buf, subst->lhsLen, subst->lhs); | | 1901 | Buf_AddBytes(&buf, subst->lhsLen, subst->lhs); |
1902 | else | | 1902 | else |
1903 | Buf_AddByte(&buf, *cp); | | 1903 | Buf_AddByte(&buf, *cp); |
1904 | } | | 1904 | } |
1905 | | | 1905 | |
1906 | if (*cp != delim) { | | 1906 | if (*cp != delim) { |
1907 | *tstr = cp; | | 1907 | *tstr = cp; |
1908 | *length = 0; | | 1908 | *length = 0; |
1909 | return NULL; | | 1909 | return NULL; |
1910 | } | | 1910 | } |
1911 | | | 1911 | |
1912 | *tstr = ++cp; | | 1912 | *tstr = ++cp; |
1913 | *length = Buf_Size(&buf); | | 1913 | *length = Buf_Size(&buf); |
1914 | rstr = Buf_Destroy(&buf, FALSE); | | 1914 | rstr = Buf_Destroy(&buf, FALSE); |
1915 | if (DEBUG(VAR)) | | 1915 | if (DEBUG(VAR)) |
1916 | fprintf(debug_file, "Modifier part: \"%s\"\n", rstr); | | 1916 | fprintf(debug_file, "Modifier part: \"%s\"\n", rstr); |
1917 | return rstr; | | 1917 | return rstr; |
1918 | } | | 1918 | } |
1919 | | | 1919 | |
1920 | /*- | | 1920 | /*- |
1921 | *----------------------------------------------------------------------- | | 1921 | *----------------------------------------------------------------------- |
1922 | * VarQuote -- | | 1922 | * VarQuote -- |
1923 | * Quote shell meta-characters and space characters in the string | | 1923 | * Quote shell meta-characters and space characters in the string |
1924 | * if quoteDollar is set, also quote and double any '$' characters. | | 1924 | * if quoteDollar is set, also quote and double any '$' characters. |
1925 | * | | 1925 | * |
1926 | * Results: | | 1926 | * Results: |
1927 | * The quoted string | | 1927 | * The quoted string |
1928 | * | | 1928 | * |
1929 | * Side Effects: | | 1929 | * Side Effects: |
1930 | * None. | | 1930 | * None. |
1931 | * | | 1931 | * |
1932 | *----------------------------------------------------------------------- | | 1932 | *----------------------------------------------------------------------- |
1933 | */ | | 1933 | */ |
1934 | static char * | | 1934 | static char * |
1935 | VarQuote(char *str, Boolean quoteDollar) | | 1935 | VarQuote(char *str, Boolean quoteDollar) |
1936 | { | | 1936 | { |
1937 | Buffer buf; | | 1937 | Buffer buf; |
1938 | Buf_Init(&buf, 0); | | 1938 | Buf_Init(&buf, 0); |
1939 | | | 1939 | |
1940 | for (; *str != '\0'; str++) { | | 1940 | for (; *str != '\0'; str++) { |
1941 | if (*str == '\n') { | | 1941 | if (*str == '\n') { |
1942 | const char *newline = Shell_GetNewline(); | | 1942 | const char *newline = Shell_GetNewline(); |
1943 | if (newline == NULL) | | 1943 | if (newline == NULL) |
1944 | newline = "\\\n"; | | 1944 | newline = "\\\n"; |
1945 | Buf_AddBytes(&buf, strlen(newline), newline); | | 1945 | Buf_AddBytes(&buf, strlen(newline), newline); |
1946 | continue; | | 1946 | continue; |
1947 | } | | 1947 | } |
1948 | if (isspace((unsigned char)*str) || ismeta((unsigned char)*str)) | | 1948 | if (isspace((unsigned char)*str) || ismeta((unsigned char)*str)) |
1949 | Buf_AddByte(&buf, '\\'); | | 1949 | Buf_AddByte(&buf, '\\'); |
1950 | Buf_AddByte(&buf, *str); | | 1950 | Buf_AddByte(&buf, *str); |
1951 | if (quoteDollar && *str == '$') | | 1951 | if (quoteDollar && *str == '$') |
1952 | Buf_AddBytes(&buf, 2, "\\$"); | | 1952 | Buf_AddBytes(&buf, 2, "\\$"); |
1953 | } | | 1953 | } |
1954 | | | 1954 | |
1955 | str = Buf_Destroy(&buf, FALSE); | | 1955 | str = Buf_Destroy(&buf, FALSE); |
1956 | if (DEBUG(VAR)) | | 1956 | if (DEBUG(VAR)) |
1957 | fprintf(debug_file, "QuoteMeta: [%s]\n", str); | | 1957 | fprintf(debug_file, "QuoteMeta: [%s]\n", str); |
1958 | return str; | | 1958 | return str; |
1959 | } | | 1959 | } |
1960 | | | 1960 | |
1961 | /*- | | 1961 | /*- |
1962 | *----------------------------------------------------------------------- | | 1962 | *----------------------------------------------------------------------- |
1963 | * VarHash -- | | 1963 | * VarHash -- |
1964 | * Hash the string using the MurmurHash3 algorithm. | | 1964 | * Hash the string using the MurmurHash3 algorithm. |
1965 | * Output is computed using 32bit Little Endian arithmetic. | | 1965 | * Output is computed using 32bit Little Endian arithmetic. |
1966 | * | | 1966 | * |
1967 | * Input: | | 1967 | * Input: |
1968 | * str String to modify | | 1968 | * str String to modify |
1969 | * | | 1969 | * |
1970 | * Results: | | 1970 | * Results: |
1971 | * Hash value of str, encoded as 8 hex digits. | | 1971 | * Hash value of str, encoded as 8 hex digits. |
1972 | * | | 1972 | * |
1973 | * Side Effects: | | 1973 | * Side Effects: |
1974 | * None. | | 1974 | * None. |
1975 | * | | 1975 | * |
1976 | *----------------------------------------------------------------------- | | 1976 | *----------------------------------------------------------------------- |
1977 | */ | | 1977 | */ |
1978 | static char * | | 1978 | static char * |
1979 | VarHash(const char *str) | | 1979 | VarHash(const char *str) |
1980 | { | | 1980 | { |
1981 | static const char hexdigits[16] = "0123456789abcdef"; | | 1981 | static const char hexdigits[16] = "0123456789abcdef"; |
1982 | Buffer buf; | | 1982 | Buffer buf; |
1983 | size_t len, len2; | | 1983 | size_t len, len2; |
1984 | const unsigned char *ustr = (const unsigned char *)str; | | 1984 | const unsigned char *ustr = (const unsigned char *)str; |
1985 | uint32_t h, k, c1, c2; | | 1985 | uint32_t h, k, c1, c2; |
1986 | | | 1986 | |
1987 | h = 0x971e137bU; | | 1987 | h = 0x971e137bU; |
1988 | c1 = 0x95543787U; | | 1988 | c1 = 0x95543787U; |
1989 | c2 = 0x2ad7eb25U; | | 1989 | c2 = 0x2ad7eb25U; |
1990 | len2 = strlen(str); | | 1990 | len2 = strlen(str); |
1991 | | | 1991 | |
1992 | for (len = len2; len; ) { | | 1992 | for (len = len2; len; ) { |
1993 | k = 0; | | 1993 | k = 0; |
1994 | switch (len) { | | 1994 | switch (len) { |
1995 | default: | | 1995 | default: |
1996 | k = ((uint32_t)ustr[3] << 24) | | | 1996 | k = ((uint32_t)ustr[3] << 24) | |
1997 | ((uint32_t)ustr[2] << 16) | | | 1997 | ((uint32_t)ustr[2] << 16) | |
1998 | ((uint32_t)ustr[1] << 8) | | | 1998 | ((uint32_t)ustr[1] << 8) | |
1999 | (uint32_t)ustr[0]; | | 1999 | (uint32_t)ustr[0]; |
2000 | len -= 4; | | 2000 | len -= 4; |
2001 | ustr += 4; | | 2001 | ustr += 4; |
2002 | break; | | 2002 | break; |
2003 | case 3: | | 2003 | case 3: |
2004 | k |= (uint32_t)ustr[2] << 16; | | 2004 | k |= (uint32_t)ustr[2] << 16; |
2005 | /* FALLTHROUGH */ | | 2005 | /* FALLTHROUGH */ |
2006 | case 2: | | 2006 | case 2: |
2007 | k |= (uint32_t)ustr[1] << 8; | | 2007 | k |= (uint32_t)ustr[1] << 8; |
2008 | /* FALLTHROUGH */ | | 2008 | /* FALLTHROUGH */ |
2009 | case 1: | | 2009 | case 1: |
2010 | k |= (uint32_t)ustr[0]; | | 2010 | k |= (uint32_t)ustr[0]; |
2011 | len = 0; | | 2011 | len = 0; |
2012 | } | | 2012 | } |
2013 | c1 = c1 * 5 + 0x7b7d159cU; | | 2013 | c1 = c1 * 5 + 0x7b7d159cU; |
2014 | c2 = c2 * 5 + 0x6bce6396U; | | 2014 | c2 = c2 * 5 + 0x6bce6396U; |
2015 | k *= c1; | | 2015 | k *= c1; |
2016 | k = (k << 11) ^ (k >> 21); | | 2016 | k = (k << 11) ^ (k >> 21); |
2017 | k *= c2; | | 2017 | k *= c2; |
2018 | h = (h << 13) ^ (h >> 19); | | 2018 | h = (h << 13) ^ (h >> 19); |
2019 | h = h * 5 + 0x52dce729U; | | 2019 | h = h * 5 + 0x52dce729U; |
2020 | h ^= k; | | 2020 | h ^= k; |
2021 | } | | 2021 | } |
2022 | h ^= len2; | | 2022 | h ^= len2; |
2023 | h *= 0x85ebca6b; | | 2023 | h *= 0x85ebca6b; |
2024 | h ^= h >> 13; | | 2024 | h ^= h >> 13; |
2025 | h *= 0xc2b2ae35; | | 2025 | h *= 0xc2b2ae35; |
2026 | h ^= h >> 16; | | 2026 | h ^= h >> 16; |
2027 | | | 2027 | |
2028 | Buf_Init(&buf, 0); | | 2028 | Buf_Init(&buf, 0); |
2029 | for (len = 0; len < 8; ++len) { | | 2029 | for (len = 0; len < 8; ++len) { |
2030 | Buf_AddByte(&buf, hexdigits[h & 15]); | | 2030 | Buf_AddByte(&buf, hexdigits[h & 15]); |
2031 | h >>= 4; | | 2031 | h >>= 4; |
2032 | } | | 2032 | } |
2033 | | | 2033 | |
2034 | return Buf_Destroy(&buf, FALSE); | | 2034 | return Buf_Destroy(&buf, FALSE); |
2035 | } | | 2035 | } |
2036 | | | 2036 | |
2037 | static char * | | 2037 | static char * |
2038 | VarStrftime(const char *fmt, int zulu, time_t utc) | | 2038 | VarStrftime(const char *fmt, int zulu, time_t utc) |
2039 | { | | 2039 | { |
2040 | char buf[BUFSIZ]; | | 2040 | char buf[BUFSIZ]; |
2041 | | | 2041 | |
2042 | if (!utc) | | 2042 | if (!utc) |
2043 | time(&utc); | | 2043 | time(&utc); |
2044 | if (!*fmt) | | 2044 | if (!*fmt) |
2045 | fmt = "%c"; | | 2045 | fmt = "%c"; |
2046 | strftime(buf, sizeof(buf), fmt, zulu ? gmtime(&utc) : localtime(&utc)); | | 2046 | strftime(buf, sizeof(buf), fmt, zulu ? gmtime(&utc) : localtime(&utc)); |
2047 | | | 2047 | |
2048 | buf[sizeof(buf) - 1] = '\0'; | | 2048 | buf[sizeof(buf) - 1] = '\0'; |
2049 | return bmake_strdup(buf); | | 2049 | return bmake_strdup(buf); |
2050 | } | | 2050 | } |
2051 | | | 2051 | |
2052 | typedef struct { | | 2052 | typedef struct { |
2053 | /* const parameters */ | | 2053 | /* const parameters */ |
2054 | int startc; /* '\0' or '{' or '(' */ | | 2054 | int startc; /* '\0' or '{' or '(' */ |
2055 | int endc; | | 2055 | int endc; |
2056 | Var *v; | | 2056 | Var *v; |
2057 | GNode *ctxt; | | 2057 | GNode *ctxt; |
2058 | VarEvalFlags eflags; | | 2058 | VarEvalFlags eflags; |
2059 | int *lengthPtr; | | 2059 | int *lengthPtr; |
2060 | void **freePtr; | | 2060 | void **freePtr; |
2061 | | | 2061 | |
2062 | /* read-write */ | | 2062 | /* read-write */ |
2063 | char *nstr; | | 2063 | char *nstr; |
2064 | const char *start; | | 2064 | const char *start; |
2065 | const char *cp; /* The position where parsing continues | | 2065 | const char *cp; /* The position where parsing continues |
2066 | * after the current modifier. */ | | 2066 | * after the current modifier. */ |
2067 | char termc; /* Character which terminated scan */ | | 2067 | char termc; /* Character which terminated scan */ |
2068 | char missing_delim; /* For error reporting */ | | 2068 | char missing_delim; /* For error reporting */ |
2069 | int modifier; /* that we are processing */ | | 2069 | int modifier; /* that we are processing */ |
2070 | | | 2070 | |
2071 | Byte sep; /* Word separator in expansions */ | | 2071 | Byte sep; /* Word separator in expansions */ |
2072 | Boolean oneBigWord; /* TRUE if we will treat the variable as a | | 2072 | Boolean oneBigWord; /* TRUE if we will treat the variable as a |
2073 | * single big word, even if it contains | | 2073 | * single big word, even if it contains |
2074 | * embedded spaces (as opposed to the | | 2074 | * embedded spaces (as opposed to the |
2075 | * usual behaviour of treating it as | | 2075 | * usual behaviour of treating it as |
2076 | * several space-separated words). */ | | 2076 | * several space-separated words). */ |
2077 | | | 2077 | |
2078 | /* result */ | | 2078 | /* result */ |
2079 | char *newStr; /* New value to return */ | | 2079 | char *newStr; /* New value to return */ |
2080 | } ApplyModifiersState; | | 2080 | } ApplyModifiersState; |
2081 | | | 2081 | |
2082 | /* we now have some modifiers with long names */ | | 2082 | /* we now have some modifiers with long names */ |
2083 | #define STRMOD_MATCH(s, want, n) \ | | 2083 | #define STRMOD_MATCH(s, want, n) \ |
2084 | (strncmp(s, want, n) == 0 && (s[n] == st->endc || s[n] == ':')) | | 2084 | (strncmp(s, want, n) == 0 && (s[n] == st->endc || s[n] == ':')) |
2085 | #define STRMOD_MATCHX(s, want, n) \ | | 2085 | #define STRMOD_MATCHX(s, want, n) \ |
2086 | (strncmp(s, want, n) == 0 && \ | | 2086 | (strncmp(s, want, n) == 0 && \ |
2087 | (s[n] == st->endc || s[n] == ':' || s[n] == '=')) | | 2087 | (s[n] == st->endc || s[n] == ':' || s[n] == '=')) |
2088 | #define CHARMOD_MATCH(c) (c == st->endc || c == ':') | | 2088 | #define CHARMOD_MATCH(c) (c == st->endc || c == ':') |
2089 | | | 2089 | |
2090 | /* :@var@...${var}...@ */ | | 2090 | /* :@var@...${var}...@ */ |
2091 | static Boolean | | 2091 | static Boolean |
2092 | ApplyModifier_Loop(const char *mod, ApplyModifiersState *st) { | | 2092 | ApplyModifier_Loop(const char *mod, ApplyModifiersState *st) { |
2093 | ModifyWord_LoopArgs args; | | 2093 | ModifyWord_LoopArgs args; |
2094 | | | 2094 | |
2095 | args.ctx = st->ctxt; | | 2095 | args.ctx = st->ctxt; |
2096 | st->cp = mod + 1; | | 2096 | st->cp = mod + 1; |
2097 | char delim = '@'; | | 2097 | char delim = '@'; |
2098 | args.tvar = ParseModifierPart(st->ctxt, &st->cp, delim, | | 2098 | args.tvar = ParseModifierPart(st->ctxt, &st->cp, delim, |
2099 | st->eflags | VARE_NOSUBST, | | 2099 | st->eflags | VARE_NOSUBST, |
2100 | NULL, NULL, NULL); | | 2100 | NULL, NULL, NULL); |
2101 | if (args.tvar == NULL) { | | 2101 | if (args.tvar == NULL) { |
2102 | st->missing_delim = delim; | | 2102 | st->missing_delim = delim; |
2103 | return FALSE; | | 2103 | return FALSE; |
2104 | } | | 2104 | } |
2105 | | | 2105 | |
2106 | args.str = ParseModifierPart(st->ctxt, &st->cp, delim, | | 2106 | args.str = ParseModifierPart(st->ctxt, &st->cp, delim, |
2107 | st->eflags | VARE_NOSUBST, | | 2107 | st->eflags | VARE_NOSUBST, |
2108 | NULL, NULL, NULL); | | 2108 | NULL, NULL, NULL); |
2109 | if (args.str == NULL) { | | 2109 | if (args.str == NULL) { |
2110 | st->missing_delim = delim; | | 2110 | st->missing_delim = delim; |
2111 | return FALSE; | | 2111 | return FALSE; |
2112 | } | | 2112 | } |
2113 | | | 2113 | |
2114 | st->termc = *st->cp; | | 2114 | st->termc = *st->cp; |
2115 | | | 2115 | |
2116 | args.eflags = st->eflags & (VARE_UNDEFERR | VARE_WANTRES); | | 2116 | args.eflags = st->eflags & (VARE_UNDEFERR | VARE_WANTRES); |
2117 | int prev_sep = st->sep; | | 2117 | int prev_sep = st->sep; |
2118 | st->sep = ' '; /* XXX: this is inconsistent */ | | 2118 | st->sep = ' '; /* XXX: this is inconsistent */ |
2119 | st->newStr = ModifyWords(st->ctxt, st->sep, st->oneBigWord, st->nstr, | | 2119 | st->newStr = ModifyWords(st->ctxt, st->sep, st->oneBigWord, st->nstr, |
2120 | ModifyWord_Loop, &args); | | 2120 | ModifyWord_Loop, &args); |
2121 | st->sep = prev_sep; | | 2121 | st->sep = prev_sep; |
2122 | Var_Delete(args.tvar, st->ctxt); | | 2122 | Var_Delete(args.tvar, st->ctxt); |
2123 | free(args.tvar); | | 2123 | free(args.tvar); |
2124 | free(args.str); | | 2124 | free(args.str); |
2125 | return TRUE; | | 2125 | return TRUE; |
2126 | } | | 2126 | } |
2127 | | | 2127 | |
2128 | /* :Ddefined or :Uundefined */ | | 2128 | /* :Ddefined or :Uundefined */ |
2129 | static void | | 2129 | static void |
2130 | ApplyModifier_Defined(const char *mod, ApplyModifiersState *st) | | 2130 | ApplyModifier_Defined(const char *mod, ApplyModifiersState *st) |
2131 | { | | 2131 | { |
2132 | Buffer buf; /* Buffer for patterns */ | | 2132 | Buffer buf; /* Buffer for patterns */ |
2133 | VarEvalFlags neflags; | | 2133 | VarEvalFlags neflags; |
2134 | | | 2134 | |
2135 | if (st->eflags & VARE_WANTRES) { | | 2135 | if (st->eflags & VARE_WANTRES) { |
2136 | Boolean wantres; | | 2136 | Boolean wantres; |
2137 | if (*mod == 'U') | | 2137 | if (*mod == 'U') |
2138 | wantres = ((st->v->flags & VAR_JUNK) != 0); | | 2138 | wantres = ((st->v->flags & VAR_JUNK) != 0); |
2139 | else | | 2139 | else |
2140 | wantres = ((st->v->flags & VAR_JUNK) == 0); | | 2140 | wantres = ((st->v->flags & VAR_JUNK) == 0); |
2141 | neflags = st->eflags & ~VARE_WANTRES; | | 2141 | neflags = st->eflags & ~VARE_WANTRES; |
2142 | if (wantres) | | 2142 | if (wantres) |
2143 | neflags |= VARE_WANTRES; | | 2143 | neflags |= VARE_WANTRES; |
2144 | } else | | 2144 | } else |
2145 | neflags = st->eflags; | | 2145 | neflags = st->eflags; |
2146 | | | 2146 | |
2147 | /* | | 2147 | /* |
2148 | * Pass through mod looking for 1) escaped delimiters, | | 2148 | * Pass through mod looking for 1) escaped delimiters, |
2149 | * '$'s and backslashes (place the escaped character in | | 2149 | * '$'s and backslashes (place the escaped character in |
2150 | * uninterpreted) and 2) unescaped $'s that aren't before | | 2150 | * uninterpreted) and 2) unescaped $'s that aren't before |
2151 | * the delimiter (expand the variable substitution). | | 2151 | * the delimiter (expand the variable substitution). |
2152 | * The result is left in the Buffer buf. | | 2152 | * The result is left in the Buffer buf. |
2153 | */ | | 2153 | */ |
2154 | Buf_Init(&buf, 0); | | 2154 | Buf_Init(&buf, 0); |
2155 | for (st->cp = mod + 1; | | 2155 | for (st->cp = mod + 1; |
2156 | *st->cp != st->endc && *st->cp != ':' && *st->cp != '\0'; | | 2156 | *st->cp != st->endc && *st->cp != ':' && *st->cp != '\0'; |
2157 | st->cp++) { | | 2157 | st->cp++) { |
2158 | if (*st->cp == '\\' && | | 2158 | if (*st->cp == '\\' && |
2159 | (st->cp[1] == ':' || st->cp[1] == '$' || st->cp[1] == st->endc || | | 2159 | (st->cp[1] == ':' || st->cp[1] == '$' || st->cp[1] == st->endc || |
2160 | st->cp[1] == '\\')) { | | 2160 | st->cp[1] == '\\')) { |
2161 | Buf_AddByte(&buf, st->cp[1]); | | 2161 | Buf_AddByte(&buf, st->cp[1]); |
2162 | st->cp++; | | 2162 | st->cp++; |
2163 | } else if (*st->cp == '$') { | | 2163 | } else if (*st->cp == '$') { |
2164 | /* | | 2164 | /* |
2165 | * If unescaped dollar sign, assume it's a | | 2165 | * If unescaped dollar sign, assume it's a |
2166 | * variable substitution and recurse. | | 2166 | * variable substitution and recurse. |
2167 | */ | | 2167 | */ |
2168 | char *cp2; | | 2168 | char *cp2; |
2169 | int len; | | 2169 | int len; |
2170 | void *freeIt; | | 2170 | void *freeIt; |
2171 | | | 2171 | |
2172 | cp2 = Var_Parse(st->cp, st->ctxt, neflags, &len, &freeIt); | | 2172 | cp2 = Var_Parse(st->cp, st->ctxt, neflags, &len, &freeIt); |
2173 | Buf_AddBytes(&buf, strlen(cp2), cp2); | | 2173 | Buf_AddBytes(&buf, strlen(cp2), cp2); |
2174 | free(freeIt); | | 2174 | free(freeIt); |
2175 | st->cp += len - 1; | | 2175 | st->cp += len - 1; |
2176 | } else { | | 2176 | } else { |
2177 | Buf_AddByte(&buf, *st->cp); | | 2177 | Buf_AddByte(&buf, *st->cp); |
2178 | } | | 2178 | } |
2179 | } | | 2179 | } |
2180 | | | 2180 | |
2181 | st->termc = *st->cp; | | 2181 | st->termc = *st->cp; |
2182 | | | 2182 | |
2183 | if (st->v->flags & VAR_JUNK) | | 2183 | if (st->v->flags & VAR_JUNK) |
2184 | st->v->flags |= VAR_KEEP; | | 2184 | st->v->flags |= VAR_KEEP; |
2185 | if (neflags & VARE_WANTRES) { | | 2185 | if (neflags & VARE_WANTRES) { |
2186 | st->newStr = Buf_Destroy(&buf, FALSE); | | 2186 | st->newStr = Buf_Destroy(&buf, FALSE); |
2187 | } else { | | 2187 | } else { |
2188 | st->newStr = st->nstr; | | 2188 | st->newStr = st->nstr; |
2189 | Buf_Destroy(&buf, TRUE); | | 2189 | Buf_Destroy(&buf, TRUE); |
2190 | } | | 2190 | } |
2191 | } | | 2191 | } |
2192 | | | 2192 | |
2193 | /* :gmtime */ | | 2193 | /* :gmtime */ |
2194 | static Boolean | | 2194 | static Boolean |
2195 | ApplyModifier_Gmtime(const char *mod, ApplyModifiersState *st) | | 2195 | ApplyModifier_Gmtime(const char *mod, ApplyModifiersState *st) |
2196 | { | | 2196 | { |
2197 | time_t utc; | | 2197 | time_t utc; |
2198 | char *ep; | | 2198 | char *ep; |
2199 | | | 2199 | |
2200 | st->cp = mod + 1; /* make sure it is set */ | | 2200 | st->cp = mod + 1; /* make sure it is set */ |
2201 | if (!STRMOD_MATCHX(mod, "gmtime", 6)) | | 2201 | if (!STRMOD_MATCHX(mod, "gmtime", 6)) |
2202 | return FALSE; | | 2202 | return FALSE; |
2203 | if (mod[6] == '=') { | | 2203 | if (mod[6] == '=') { |
2204 | utc = strtoul(mod + 7, &ep, 10); | | 2204 | utc = strtoul(mod + 7, &ep, 10); |
2205 | st->cp = ep; | | 2205 | st->cp = ep; |
2206 | } else { | | 2206 | } else { |
2207 | utc = 0; | | 2207 | utc = 0; |
2208 | st->cp = mod + 6; | | 2208 | st->cp = mod + 6; |
2209 | } | | 2209 | } |
2210 | st->newStr = VarStrftime(st->nstr, 1, utc); | | 2210 | st->newStr = VarStrftime(st->nstr, 1, utc); |
2211 | st->termc = *st->cp; | | 2211 | st->termc = *st->cp; |
2212 | return TRUE; | | 2212 | return TRUE; |
2213 | } | | 2213 | } |
2214 | | | 2214 | |
2215 | /* :localtime */ | | 2215 | /* :localtime */ |
2216 | static Boolean | | 2216 | static Boolean |
2217 | ApplyModifier_Localtime(const char *mod, ApplyModifiersState *st) | | 2217 | ApplyModifier_Localtime(const char *mod, ApplyModifiersState *st) |
2218 | { | | 2218 | { |
2219 | time_t utc; | | 2219 | time_t utc; |
2220 | char *ep; | | 2220 | char *ep; |
2221 | | | 2221 | |
2222 | st->cp = mod + 1; /* make sure it is set */ | | 2222 | st->cp = mod + 1; /* make sure it is set */ |
2223 | if (!STRMOD_MATCHX(mod, "localtime", 9)) | | 2223 | if (!STRMOD_MATCHX(mod, "localtime", 9)) |
2224 | return FALSE; | | 2224 | return FALSE; |
2225 | | | 2225 | |
2226 | if (mod[9] == '=') { | | 2226 | if (mod[9] == '=') { |
2227 | utc = strtoul(mod + 10, &ep, 10); | | 2227 | utc = strtoul(mod + 10, &ep, 10); |
2228 | st->cp = ep; | | 2228 | st->cp = ep; |
2229 | } else { | | 2229 | } else { |
2230 | utc = 0; | | 2230 | utc = 0; |
2231 | st->cp = mod + 9; | | 2231 | st->cp = mod + 9; |
2232 | } | | 2232 | } |
2233 | st->newStr = VarStrftime(st->nstr, 0, utc); | | 2233 | st->newStr = VarStrftime(st->nstr, 0, utc); |
2234 | st->termc = *st->cp; | | 2234 | st->termc = *st->cp; |
2235 | return TRUE; | | 2235 | return TRUE; |
2236 | } | | 2236 | } |
2237 | | | 2237 | |
2238 | /* :hash */ | | 2238 | /* :hash */ |
2239 | static Boolean | | 2239 | static Boolean |
2240 | ApplyModifier_Hash(const char *mod, ApplyModifiersState *st) | | 2240 | ApplyModifier_Hash(const char *mod, ApplyModifiersState *st) |
2241 | { | | 2241 | { |
2242 | st->cp = mod + 1; /* make sure it is set */ | | 2242 | st->cp = mod + 1; /* make sure it is set */ |
2243 | if (!STRMOD_MATCH(mod, "hash", 4)) | | 2243 | if (!STRMOD_MATCH(mod, "hash", 4)) |
2244 | return FALSE; | | 2244 | return FALSE; |
2245 | st->newStr = VarHash(st->nstr); | | 2245 | st->newStr = VarHash(st->nstr); |
2246 | st->cp = mod + 4; | | 2246 | st->cp = mod + 4; |
2247 | st->termc = *st->cp; | | 2247 | st->termc = *st->cp; |
2248 | return TRUE; | | 2248 | return TRUE; |
2249 | } | | 2249 | } |
2250 | | | 2250 | |
2251 | /* :P */ | | 2251 | /* :P */ |
2252 | static void | | 2252 | static void |
2253 | ApplyModifier_Path(const char *mod, ApplyModifiersState *st) | | 2253 | ApplyModifier_Path(const char *mod, ApplyModifiersState *st) |
2254 | { | | 2254 | { |
2255 | if ((st->v->flags & VAR_JUNK) != 0) | | 2255 | if ((st->v->flags & VAR_JUNK) != 0) |
2256 | st->v->flags |= VAR_KEEP; | | 2256 | st->v->flags |= VAR_KEEP; |
2257 | GNode *gn = Targ_FindNode(st->v->name, TARG_NOCREATE); | | 2257 | GNode *gn = Targ_FindNode(st->v->name, TARG_NOCREATE); |
2258 | if (gn == NULL || gn->type & OP_NOPATH) { | | 2258 | if (gn == NULL || gn->type & OP_NOPATH) { |
2259 | st->newStr = NULL; | | 2259 | st->newStr = NULL; |
2260 | } else if (gn->path) { | | 2260 | } else if (gn->path) { |
2261 | st->newStr = bmake_strdup(gn->path); | | 2261 | st->newStr = bmake_strdup(gn->path); |
2262 | } else { | | 2262 | } else { |
2263 | st->newStr = Dir_FindFile(st->v->name, Suff_FindPath(gn)); | | 2263 | st->newStr = Dir_FindFile(st->v->name, Suff_FindPath(gn)); |
2264 | } | | 2264 | } |
2265 | if (!st->newStr) | | 2265 | if (!st->newStr) |
2266 | st->newStr = bmake_strdup(st->v->name); | | 2266 | st->newStr = bmake_strdup(st->v->name); |
2267 | st->cp = mod + 1; | | 2267 | st->cp = mod + 1; |
2268 | st->termc = *st->cp; | | 2268 | st->termc = *st->cp; |
2269 | } | | 2269 | } |
2270 | | | 2270 | |
2271 | /* :!cmd! */ | | 2271 | /* :!cmd! */ |
2272 | static Boolean | | 2272 | static Boolean |
2273 | ApplyModifier_Exclam(const char *mod, ApplyModifiersState *st) | | 2273 | ApplyModifier_Exclam(const char *mod, ApplyModifiersState *st) |
2274 | { | | 2274 | { |
2275 | st->cp = mod + 1; | | 2275 | st->cp = mod + 1; |
2276 | char delim = '!'; | | 2276 | char delim = '!'; |
2277 | char *cmd = ParseModifierPart(st->ctxt, &st->cp, delim, st->eflags, | | 2277 | char *cmd = ParseModifierPart(st->ctxt, &st->cp, delim, st->eflags, |
2278 | NULL, NULL, NULL); | | 2278 | NULL, NULL, NULL); |
2279 | if (cmd == NULL) { | | 2279 | if (cmd == NULL) { |
2280 | st->missing_delim = delim; | | 2280 | st->missing_delim = delim; |
2281 | return FALSE; | | 2281 | return FALSE; |
2282 | } | | 2282 | } |
2283 | | | 2283 | |
2284 | const char *emsg = NULL; | | 2284 | const char *emsg = NULL; |
2285 | if (st->eflags & VARE_WANTRES) | | 2285 | if (st->eflags & VARE_WANTRES) |
2286 | st->newStr = Cmd_Exec(cmd, &emsg); | | 2286 | st->newStr = Cmd_Exec(cmd, &emsg); |
2287 | else | | 2287 | else |
2288 | st->newStr = varNoError; | | 2288 | st->newStr = varNoError; |
2289 | free(cmd); | | 2289 | free(cmd); |
2290 | | | 2290 | |
2291 | if (emsg) | | 2291 | if (emsg) |
2292 | Error(emsg, st->nstr); | | 2292 | Error(emsg, st->nstr); |
2293 | | | 2293 | |
2294 | st->termc = *st->cp; | | 2294 | st->termc = *st->cp; |
2295 | if (st->v->flags & VAR_JUNK) | | 2295 | if (st->v->flags & VAR_JUNK) |
2296 | st->v->flags |= VAR_KEEP; | | 2296 | st->v->flags |= VAR_KEEP; |
2297 | return TRUE; | | 2297 | return TRUE; |
2298 | } | | 2298 | } |
2299 | | | 2299 | |
2300 | /* :range */ | | 2300 | /* :range */ |
2301 | static Boolean | | 2301 | static Boolean |
2302 | ApplyModifier_Range(const char *mod, ApplyModifiersState *st) | | 2302 | ApplyModifier_Range(const char *mod, ApplyModifiersState *st) |
2303 | { | | 2303 | { |
2304 | int n; | | 2304 | int n; |
2305 | char *ep; | | 2305 | char *ep; |
2306 | | | 2306 | |
2307 | st->cp = mod + 1; /* make sure it is set */ | | 2307 | st->cp = mod + 1; /* make sure it is set */ |
2308 | if (!STRMOD_MATCHX(mod, "range", 5)) | | 2308 | if (!STRMOD_MATCHX(mod, "range", 5)) |
2309 | return FALSE; | | 2309 | return FALSE; |
2310 | | | 2310 | |
2311 | if (mod[5] == '=') { | | 2311 | if (mod[5] == '=') { |
2312 | n = strtoul(mod + 6, &ep, 10); | | 2312 | n = strtoul(mod + 6, &ep, 10); |
2313 | st->cp = ep; | | 2313 | st->cp = ep; |
2314 | } else { | | 2314 | } else { |
2315 | n = 0; | | 2315 | n = 0; |
2316 | st->cp = mod + 5; | | 2316 | st->cp = mod + 5; |
2317 | } | | 2317 | } |
2318 | st->newStr = VarRange(st->nstr, n); | | 2318 | st->newStr = VarRange(st->nstr, n); |
2319 | st->termc = *st->cp; | | 2319 | st->termc = *st->cp; |
2320 | return TRUE; | | 2320 | return TRUE; |
2321 | } | | 2321 | } |
2322 | | | 2322 | |
2323 | /* :Mpattern or :Npattern */ | | 2323 | /* :Mpattern or :Npattern */ |
2324 | static void | | 2324 | static void |
2325 | ApplyModifier_Match(const char *mod, ApplyModifiersState *st) | | 2325 | ApplyModifier_Match(const char *mod, ApplyModifiersState *st) |
2326 | { | | 2326 | { |
2327 | Boolean copy = FALSE; /* pattern should be, or has been, copied */ | | 2327 | Boolean copy = FALSE; /* pattern should be, or has been, copied */ |
2328 | Boolean needSubst = FALSE; | | 2328 | Boolean needSubst = FALSE; |
2329 | /* | | 2329 | /* |
2330 | * In the loop below, ignore ':' unless we are at (or back to) the | | 2330 | * In the loop below, ignore ':' unless we are at (or back to) the |
2331 | * original brace level. | | 2331 | * original brace level. |
2332 | * XXX This will likely not work right if $() and ${} are intermixed. | | 2332 | * XXX This will likely not work right if $() and ${} are intermixed. |
2333 | */ | | 2333 | */ |
2334 | int nest = 1; | | 2334 | int nest = 1; |
2335 | for (st->cp = mod + 1; | | 2335 | for (st->cp = mod + 1; |
2336 | *st->cp != '\0' && !(*st->cp == ':' && nest == 1); | | 2336 | *st->cp != '\0' && !(*st->cp == ':' && nest == 1); |
2337 | st->cp++) { | | 2337 | st->cp++) { |
2338 | if (*st->cp == '\\' && | | 2338 | if (*st->cp == '\\' && |
2339 | (st->cp[1] == ':' || st->cp[1] == st->endc || | | 2339 | (st->cp[1] == ':' || st->cp[1] == st->endc || |
2340 | st->cp[1] == st->startc)) { | | 2340 | st->cp[1] == st->startc)) { |
2341 | if (!needSubst) | | 2341 | if (!needSubst) |
2342 | copy = TRUE; | | 2342 | copy = TRUE; |
2343 | st->cp++; | | 2343 | st->cp++; |
2344 | continue; | | 2344 | continue; |
2345 | } | | 2345 | } |