| @@ -1,1078 +1,1078 @@ | | | @@ -1,1078 +1,1078 @@ |
1 | /* $NetBSD: var.c,v 1.353 2020/07/28 17:18:40 rillig Exp $ */ | | 1 | /* $NetBSD: var.c,v 1.354 2020/07/29 19:48:33 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 1.353 2020/07/28 17:18:40 rillig Exp $"; | | 72 | static char rcsid[] = "$NetBSD: var.c,v 1.354 2020/07/29 19:48:33 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 1.353 2020/07/28 17:18:40 rillig Exp $"); | | 79 | __RCSID("$NetBSD: var.c,v 1.354 2020/07/29 19:48:33 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 unexpanded value of a variable in a | | 101 | * Var_Value Return the unexpanded value of a variable in a |
102 | * context or NULL if the variable is undefined. | | 102 | * context or 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 | #define VAR_DEBUG(fmt, ...) \ | | 139 | #define VAR_DEBUG(fmt, ...) \ |
140 | if (!DEBUG(VAR)) \ | | 140 | if (!DEBUG(VAR)) \ |
141 | (void) 0; \ | | 141 | (void) 0; \ |
142 | else \ | | 142 | else \ |
143 | fprintf(debug_file, fmt, __VA_ARGS__) | | 143 | fprintf(debug_file, fmt, __VA_ARGS__) |
144 | | | 144 | |
145 | /* | | 145 | /* |
146 | * This lets us tell if we have replaced the original environ | | 146 | * This lets us tell if we have replaced the original environ |
147 | * (which we cannot free). | | 147 | * (which we cannot free). |
148 | */ | | 148 | */ |
149 | char **savedEnv = NULL; | | 149 | char **savedEnv = NULL; |
150 | | | 150 | |
151 | /* | | 151 | /* |
152 | * This is a harmless return value for Var_Parse that can be used by Var_Subst | | 152 | * This is a harmless return value for Var_Parse that can be used by Var_Subst |
153 | * to determine if there was an error in parsing -- easier than returning | | 153 | * to determine if there was an error in parsing -- easier than returning |
154 | * a flag, as things outside this module don't give a hoot. | | 154 | * a flag, as things outside this module don't give a hoot. |
155 | */ | | 155 | */ |
156 | char var_Error[] = ""; | | 156 | char var_Error[] = ""; |
157 | | | 157 | |
158 | /* | | 158 | /* |
159 | * Similar to var_Error, but returned when the 'VARE_UNDEFERR' flag for | | 159 | * Similar to var_Error, but returned when the 'VARE_UNDEFERR' flag for |
160 | * Var_Parse is not set. Why not just use a constant? Well, GCC likes | | 160 | * Var_Parse is not set. Why not just use a constant? Well, GCC likes |
161 | * to condense identical string instances... | | 161 | * to condense identical string instances... |
162 | */ | | 162 | */ |
163 | static char varNoError[] = ""; | | 163 | static char varNoError[] = ""; |
164 | | | 164 | |
165 | /* | | 165 | /* |
166 | * Traditionally we consume $$ during := like any other expansion. | | 166 | * Traditionally we consume $$ during := like any other expansion. |
167 | * Other make's do not. | | 167 | * Other make's do not. |
168 | * This knob allows controlling the behavior. | | 168 | * This knob allows controlling the behavior. |
169 | * FALSE to consume $$ during := assignment. | | 169 | * FALSE to consume $$ during := assignment. |
170 | * TRUE to preserve $$ during := assignment. | | 170 | * TRUE to preserve $$ during := assignment. |
171 | */ | | 171 | */ |
172 | #define SAVE_DOLLARS ".MAKE.SAVE_DOLLARS" | | 172 | #define SAVE_DOLLARS ".MAKE.SAVE_DOLLARS" |
173 | static Boolean save_dollars = TRUE; | | 173 | static Boolean save_dollars = TRUE; |
174 | | | 174 | |
175 | /* | | 175 | /* |
176 | * Internally, variables are contained in four different contexts. | | 176 | * Internally, variables are contained in four different contexts. |
177 | * 1) the environment. They cannot be changed. If an environment | | 177 | * 1) the environment. They cannot be changed. If an environment |
178 | * variable is appended to, the result is placed in the global | | 178 | * variable is appended to, the result is placed in the global |
179 | * context. | | 179 | * context. |
180 | * 2) the global context. Variables set in the Makefile are located in | | 180 | * 2) the global context. Variables set in the Makefile are located in |
181 | * the global context. | | 181 | * the global context. |
182 | * 3) the command-line context. All variables set on the command line | | 182 | * 3) the command-line context. All variables set on the command line |
183 | * are placed in this context. They are UNALTERABLE once placed here. | | 183 | * are placed in this context. They are UNALTERABLE once placed here. |
184 | * 4) the local context. Each target has associated with it a context | | 184 | * 4) the local context. Each target has associated with it a context |
185 | * list. On this list are located the structures describing such | | 185 | * list. On this list are located the structures describing such |
186 | * local variables as $(@) and $(*) | | 186 | * local variables as $(@) and $(*) |
187 | * The four contexts are searched in the reverse order from which they are | | 187 | * The four contexts are searched in the reverse order from which they are |
188 | * listed (but see checkEnvFirst). | | 188 | * listed (but see checkEnvFirst). |
189 | */ | | 189 | */ |
190 | GNode *VAR_INTERNAL; /* variables from make itself */ | | 190 | GNode *VAR_INTERNAL; /* variables from make itself */ |
191 | GNode *VAR_GLOBAL; /* variables from the makefile */ | | 191 | GNode *VAR_GLOBAL; /* variables from the makefile */ |
192 | GNode *VAR_CMD; /* variables defined on the command-line */ | | 192 | GNode *VAR_CMD; /* variables defined on the command-line */ |
193 | | | 193 | |
194 | typedef enum { | | 194 | typedef enum { |
195 | FIND_CMD = 0x01, /* look in VAR_CMD when searching */ | | 195 | FIND_CMD = 0x01, /* look in VAR_CMD when searching */ |
196 | FIND_GLOBAL = 0x02, /* look in VAR_GLOBAL as well */ | | 196 | FIND_GLOBAL = 0x02, /* look in VAR_GLOBAL as well */ |
197 | FIND_ENV = 0x04 /* look in the environment also */ | | 197 | FIND_ENV = 0x04 /* look in the environment also */ |
198 | } VarFindFlags; | | 198 | } VarFindFlags; |
199 | | | 199 | |
200 | typedef enum { | | 200 | typedef enum { |
201 | VAR_IN_USE = 0x01, /* Variable's value is currently being used | | 201 | VAR_IN_USE = 0x01, /* Variable's value is currently being used |
202 | * by Var_Parse or Var_Subst. | | 202 | * by Var_Parse or Var_Subst. |
203 | * Used to avoid endless recursion */ | | 203 | * Used to avoid endless recursion */ |
204 | VAR_FROM_ENV = 0x02, /* Variable comes from the environment */ | | 204 | VAR_FROM_ENV = 0x02, /* Variable comes from the environment */ |
205 | VAR_JUNK = 0x04, /* Variable is a junk variable that | | 205 | VAR_JUNK = 0x04, /* Variable is a junk variable that |
206 | * should be destroyed when done with | | 206 | * should be destroyed when done with |
207 | * it. Used by Var_Parse for undefined, | | 207 | * it. Used by Var_Parse for undefined, |
208 | * modified variables */ | | 208 | * modified variables */ |
209 | VAR_KEEP = 0x08, /* Variable is VAR_JUNK, but we found | | 209 | VAR_KEEP = 0x08, /* Variable is VAR_JUNK, but we found |
210 | * a use for it in some modifier and | | 210 | * a use for it in some modifier and |
211 | * the value is therefore valid */ | | 211 | * the value is therefore valid */ |
212 | VAR_EXPORTED = 0x10, /* Variable is exported */ | | 212 | VAR_EXPORTED = 0x10, /* Variable is exported */ |
213 | VAR_REEXPORT = 0x20, /* Indicate if var needs re-export. | | 213 | VAR_REEXPORT = 0x20, /* Indicate if var needs re-export. |
214 | * This would be true if it contains $'s */ | | 214 | * This would be true if it contains $'s */ |
215 | VAR_FROM_CMD = 0x40 /* Variable came from command line */ | | 215 | VAR_FROM_CMD = 0x40 /* Variable came from command line */ |
216 | } Var_Flags; | | 216 | } Var_Flags; |
217 | | | 217 | |
218 | typedef struct Var { | | 218 | typedef struct Var { |
219 | char *name; /* the variable's name */ | | 219 | char *name; /* the variable's name */ |
220 | Buffer val; /* its value */ | | 220 | Buffer val; /* its value */ |
221 | Var_Flags flags; /* miscellaneous status flags */ | | 221 | Var_Flags flags; /* miscellaneous status flags */ |
222 | } Var; | | 222 | } Var; |
223 | | | 223 | |
224 | /* | | 224 | /* |
225 | * Exporting vars is expensive so skip it if we can | | 225 | * Exporting vars is expensive so skip it if we can |
226 | */ | | 226 | */ |
227 | typedef enum { | | 227 | typedef enum { |
228 | VAR_EXPORTED_NONE, | | 228 | VAR_EXPORTED_NONE, |
229 | VAR_EXPORTED_YES, | | 229 | VAR_EXPORTED_YES, |
230 | VAR_EXPORTED_ALL | | 230 | VAR_EXPORTED_ALL |
231 | } VarExportedMode; | | 231 | } VarExportedMode; |
232 | static VarExportedMode var_exportedVars = VAR_EXPORTED_NONE; | | 232 | static VarExportedMode var_exportedVars = VAR_EXPORTED_NONE; |
233 | | | 233 | |
234 | typedef enum { | | 234 | typedef enum { |
235 | /* | | 235 | /* |
236 | * We pass this to Var_Export when doing the initial export | | 236 | * We pass this to Var_Export when doing the initial export |
237 | * or after updating an exported var. | | 237 | * or after updating an exported var. |
238 | */ | | 238 | */ |
239 | VAR_EXPORT_PARENT = 0x01, | | 239 | VAR_EXPORT_PARENT = 0x01, |
240 | /* | | 240 | /* |
241 | * We pass this to Var_Export1 to tell it to leave the value alone. | | 241 | * We pass this to Var_Export1 to tell it to leave the value alone. |
242 | */ | | 242 | */ |
243 | VAR_EXPORT_LITERAL = 0x02 | | 243 | VAR_EXPORT_LITERAL = 0x02 |
244 | } VarExportFlags; | | 244 | } VarExportFlags; |
245 | | | 245 | |
246 | /* Flags for pattern matching in the :S and :C modifiers */ | | 246 | /* Flags for pattern matching in the :S and :C modifiers */ |
247 | typedef enum { | | 247 | typedef enum { |
248 | VARP_SUB_GLOBAL = 0x01, /* Apply substitution globally */ | | 248 | VARP_SUB_GLOBAL = 0x01, /* Apply substitution globally */ |
249 | VARP_SUB_ONE = 0x02, /* Apply substitution to one word */ | | 249 | VARP_SUB_ONE = 0x02, /* Apply substitution to one word */ |
250 | VARP_SUB_MATCHED = 0x04, /* There was a match */ | | 250 | VARP_SUB_MATCHED = 0x04, /* There was a match */ |
251 | VARP_ANCHOR_START = 0x08, /* Match at start of word */ | | 251 | VARP_ANCHOR_START = 0x08, /* Match at start of word */ |
252 | VARP_ANCHOR_END = 0x10 /* Match at end of word */ | | 252 | VARP_ANCHOR_END = 0x10 /* Match at end of word */ |
253 | } VarPatternFlags; | | 253 | } VarPatternFlags; |
254 | | | 254 | |
255 | typedef enum { | | 255 | typedef enum { |
256 | VAR_NO_EXPORT = 0x01 /* do not export */ | | 256 | VAR_NO_EXPORT = 0x01 /* do not export */ |
257 | } VarSet_Flags; | | 257 | } VarSet_Flags; |
258 | | | 258 | |
259 | #define BROPEN '{' | | 259 | #define BROPEN '{' |
260 | #define BRCLOSE '}' | | 260 | #define BRCLOSE '}' |
261 | #define PROPEN '(' | | 261 | #define PROPEN '(' |
262 | #define PRCLOSE ')' | | 262 | #define PRCLOSE ')' |
263 | | | 263 | |
264 | /*- | | 264 | /*- |
265 | *----------------------------------------------------------------------- | | 265 | *----------------------------------------------------------------------- |
266 | * VarFind -- | | 266 | * VarFind -- |
267 | * Find the given variable in the given context and any other contexts | | 267 | * Find the given variable in the given context and any other contexts |
268 | * indicated. | | 268 | * indicated. |
269 | * | | 269 | * |
270 | * Input: | | 270 | * Input: |
271 | * name name to find | | 271 | * name name to find |
272 | * ctxt context in which to find it | | 272 | * ctxt context in which to find it |
273 | * flags FIND_GLOBAL look in VAR_GLOBAL as well | | 273 | * flags FIND_GLOBAL look in VAR_GLOBAL as well |
274 | * FIND_CMD look in VAR_CMD as well | | 274 | * FIND_CMD look in VAR_CMD as well |
275 | * FIND_ENV look in the environment as well | | 275 | * FIND_ENV look in the environment as well |
276 | * | | 276 | * |
277 | * Results: | | 277 | * Results: |
278 | * A pointer to the structure describing the desired variable or | | 278 | * A pointer to the structure describing the desired variable or |
279 | * NULL if the variable does not exist. | | 279 | * NULL if the variable does not exist. |
280 | * | | 280 | * |
281 | * Side Effects: | | 281 | * Side Effects: |
282 | * None | | 282 | * None |
283 | *----------------------------------------------------------------------- | | 283 | *----------------------------------------------------------------------- |
284 | */ | | 284 | */ |
285 | static Var * | | 285 | static Var * |
286 | VarFind(const char *name, GNode *ctxt, VarFindFlags flags) | | 286 | VarFind(const char *name, GNode *ctxt, VarFindFlags flags) |
287 | { | | 287 | { |
288 | /* | | 288 | /* |
289 | * If the variable name begins with a '.', it could very well be one of | | 289 | * If the variable name begins with a '.', it could very well be one of |
290 | * the local ones. We check the name against all the local variables | | 290 | * the local ones. We check the name against all the local variables |
291 | * and substitute the short version in for 'name' if it matches one of | | 291 | * and substitute the short version in for 'name' if it matches one of |
292 | * them. | | 292 | * them. |
293 | */ | | 293 | */ |
294 | if (*name == '.' && isupper((unsigned char) name[1])) { | | 294 | if (*name == '.' && isupper((unsigned char) name[1])) { |
295 | switch (name[1]) { | | 295 | switch (name[1]) { |
296 | case 'A': | | 296 | case 'A': |
297 | if (strcmp(name, ".ALLSRC") == 0) | | 297 | if (strcmp(name, ".ALLSRC") == 0) |
298 | name = ALLSRC; | | 298 | name = ALLSRC; |
299 | if (strcmp(name, ".ARCHIVE") == 0) | | 299 | if (strcmp(name, ".ARCHIVE") == 0) |
300 | name = ARCHIVE; | | 300 | name = ARCHIVE; |
301 | break; | | 301 | break; |
302 | case 'I': | | 302 | case 'I': |
303 | if (strcmp(name, ".IMPSRC") == 0) | | 303 | if (strcmp(name, ".IMPSRC") == 0) |
304 | name = IMPSRC; | | 304 | name = IMPSRC; |
305 | break; | | 305 | break; |
306 | case 'M': | | 306 | case 'M': |
307 | if (strcmp(name, ".MEMBER") == 0) | | 307 | if (strcmp(name, ".MEMBER") == 0) |
308 | name = MEMBER; | | 308 | name = MEMBER; |
309 | break; | | 309 | break; |
310 | case 'O': | | 310 | case 'O': |
311 | if (strcmp(name, ".OODATE") == 0) | | 311 | if (strcmp(name, ".OODATE") == 0) |
312 | name = OODATE; | | 312 | name = OODATE; |
313 | break; | | 313 | break; |
314 | case 'P': | | 314 | case 'P': |
315 | if (strcmp(name, ".PREFIX") == 0) | | 315 | if (strcmp(name, ".PREFIX") == 0) |
316 | name = PREFIX; | | 316 | name = PREFIX; |
317 | break; | | 317 | break; |
318 | case 'T': | | 318 | case 'T': |
319 | if (strcmp(name, ".TARGET") == 0) | | 319 | if (strcmp(name, ".TARGET") == 0) |
320 | name = TARGET; | | 320 | name = TARGET; |
321 | break; | | 321 | break; |
322 | } | | 322 | } |
323 | } | | 323 | } |
324 | | | 324 | |
325 | #ifdef notyet | | 325 | #ifdef notyet |
326 | /* for compatibility with gmake */ | | 326 | /* for compatibility with gmake */ |
327 | if (name[0] == '^' && name[1] == '\0') | | 327 | if (name[0] == '^' && name[1] == '\0') |
328 | name = ALLSRC; | | 328 | name = ALLSRC; |
329 | #endif | | 329 | #endif |
330 | | | 330 | |
331 | /* | | 331 | /* |
332 | * First look for the variable in the given context. If it's not there, | | 332 | * First look for the variable in the given context. If it's not there, |
333 | * look for it in VAR_CMD, VAR_GLOBAL and the environment, in that order, | | 333 | * look for it in VAR_CMD, VAR_GLOBAL and the environment, in that order, |
334 | * depending on the FIND_* flags in 'flags' | | 334 | * depending on the FIND_* flags in 'flags' |
335 | */ | | 335 | */ |
336 | Hash_Entry *var = Hash_FindEntry(&ctxt->context, name); | | 336 | Hash_Entry *var = Hash_FindEntry(&ctxt->context, name); |
337 | | | 337 | |
338 | if (var == NULL && (flags & FIND_CMD) && ctxt != VAR_CMD) { | | 338 | if (var == NULL && (flags & FIND_CMD) && ctxt != VAR_CMD) { |
339 | var = Hash_FindEntry(&VAR_CMD->context, name); | | 339 | var = Hash_FindEntry(&VAR_CMD->context, name); |
340 | } | | 340 | } |
341 | if (!checkEnvFirst && var == NULL && (flags & FIND_GLOBAL) && | | 341 | if (!checkEnvFirst && var == NULL && (flags & FIND_GLOBAL) && |
342 | ctxt != VAR_GLOBAL) | | 342 | ctxt != VAR_GLOBAL) |
343 | { | | 343 | { |
344 | var = Hash_FindEntry(&VAR_GLOBAL->context, name); | | 344 | var = Hash_FindEntry(&VAR_GLOBAL->context, name); |
345 | if (var == NULL && ctxt != VAR_INTERNAL) { | | 345 | if (var == NULL && ctxt != VAR_INTERNAL) { |
346 | /* VAR_INTERNAL is subordinate to VAR_GLOBAL */ | | 346 | /* VAR_INTERNAL is subordinate to VAR_GLOBAL */ |
347 | var = Hash_FindEntry(&VAR_INTERNAL->context, name); | | 347 | var = Hash_FindEntry(&VAR_INTERNAL->context, name); |
348 | } | | 348 | } |
349 | } | | 349 | } |
350 | if (var == NULL && (flags & FIND_ENV)) { | | 350 | if (var == NULL && (flags & FIND_ENV)) { |
351 | char *env; | | 351 | char *env; |
352 | | | 352 | |
353 | if ((env = getenv(name)) != NULL) { | | 353 | if ((env = getenv(name)) != NULL) { |
354 | Var *v = bmake_malloc(sizeof(Var)); | | 354 | Var *v = bmake_malloc(sizeof(Var)); |
355 | v->name = bmake_strdup(name); | | 355 | v->name = bmake_strdup(name); |
356 | | | 356 | |
357 | int len = (int)strlen(env); | | 357 | int len = (int)strlen(env); |
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 = bmake_malloc(sizeof(Var)); | | 431 | Var *v = bmake_malloc(sizeof(Var)); |
432 | | | 432 | |
433 | int len = val != NULL ? (int)strlen(val) : 0; | | 433 | int len = val != NULL ? (int)strlen(val) : 0; |
434 | Buf_Init(&v->val, len + 1); | | 434 | Buf_Init(&v->val, len + 1); |
435 | Buf_AddBytes(&v->val, len, val); | | 435 | Buf_AddBytes(&v->val, len, val); |
436 | | | 436 | |
437 | v->flags = 0; | | 437 | v->flags = 0; |
438 | | | 438 | |
439 | Hash_Entry *h = Hash_CreateEntry(&ctxt->context, name, NULL); | | 439 | Hash_Entry *h = Hash_CreateEntry(&ctxt->context, name, NULL); |
440 | Hash_SetValue(h, v); | | 440 | Hash_SetValue(h, v); |
441 | v->name = h->name; | | 441 | v->name = h->name; |
442 | if (DEBUG(VAR) && !(ctxt->flags & INTERNAL)) { | | 442 | if (DEBUG(VAR) && !(ctxt->flags & INTERNAL)) { |
443 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); | | 443 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); |
444 | } | | 444 | } |
445 | } | | 445 | } |
446 | | | 446 | |
447 | /*- | | 447 | /*- |
448 | *----------------------------------------------------------------------- | | 448 | *----------------------------------------------------------------------- |
449 | * Var_Delete -- | | 449 | * Var_Delete -- |
450 | * Remove a variable from a context. | | 450 | * Remove a variable from a context. |
451 | * | | 451 | * |
452 | * Side Effects: | | 452 | * Side Effects: |
453 | * The Var structure is removed and freed. | | 453 | * The Var structure is removed and freed. |
454 | * | | 454 | * |
455 | *----------------------------------------------------------------------- | | 455 | *----------------------------------------------------------------------- |
456 | */ | | 456 | */ |
457 | void | | 457 | void |
458 | Var_Delete(const char *name, GNode *ctxt) | | 458 | Var_Delete(const char *name, GNode *ctxt) |
459 | { | | 459 | { |
460 | Hash_Entry *ln; | | 460 | Hash_Entry *ln; |
461 | char *cp; | | 461 | char *cp; |
462 | | | 462 | |
463 | if (strchr(name, '$') != NULL) { | | 463 | if (strchr(name, '$') != NULL) { |
464 | cp = Var_Subst(name, VAR_GLOBAL, VARE_WANTRES); | | 464 | cp = Var_Subst(name, VAR_GLOBAL, VARE_WANTRES); |
465 | } else { | | 465 | } else { |
466 | cp = UNCONST(name); | | 466 | cp = UNCONST(name); |
467 | } | | 467 | } |
468 | ln = Hash_FindEntry(&ctxt->context, cp); | | 468 | ln = Hash_FindEntry(&ctxt->context, cp); |
469 | if (DEBUG(VAR)) { | | 469 | if (DEBUG(VAR)) { |
470 | fprintf(debug_file, "%s:delete %s%s\n", | | 470 | fprintf(debug_file, "%s:delete %s%s\n", |
471 | ctxt->name, cp, ln ? "" : " (not found)"); | | 471 | ctxt->name, cp, ln ? "" : " (not found)"); |
472 | } | | 472 | } |
473 | if (cp != name) | | 473 | if (cp != name) |
474 | free(cp); | | 474 | free(cp); |
475 | if (ln != NULL) { | | 475 | if (ln != NULL) { |
476 | Var *v = (Var *)Hash_GetValue(ln); | | 476 | Var *v = (Var *)Hash_GetValue(ln); |
477 | if (v->flags & VAR_EXPORTED) | | 477 | if (v->flags & VAR_EXPORTED) |
478 | unsetenv(v->name); | | 478 | unsetenv(v->name); |
479 | if (strcmp(MAKE_EXPORTED, v->name) == 0) | | 479 | if (strcmp(MAKE_EXPORTED, v->name) == 0) |
480 | var_exportedVars = VAR_EXPORTED_NONE; | | 480 | var_exportedVars = VAR_EXPORTED_NONE; |
481 | if (v->name != ln->name) | | 481 | if (v->name != ln->name) |
482 | free(v->name); | | 482 | free(v->name); |
483 | Hash_DeleteEntry(&ctxt->context, ln); | | 483 | Hash_DeleteEntry(&ctxt->context, ln); |
484 | Buf_Destroy(&v->val, TRUE); | | 484 | Buf_Destroy(&v->val, TRUE); |
485 | free(v); | | 485 | free(v); |
486 | } | | 486 | } |
487 | } | | 487 | } |
488 | | | 488 | |
489 | | | 489 | |
490 | /* | | 490 | /* |
491 | * Export a var. | | 491 | * Export a var. |
492 | * We ignore make internal variables (those which start with '.') | | 492 | * We ignore make internal variables (those which start with '.') |
493 | * Also we jump through some hoops to avoid calling setenv | | 493 | * Also we jump through some hoops to avoid calling setenv |
494 | * more than necessary since it can leak. | | 494 | * more than necessary since it can leak. |
495 | * We only manipulate flags of vars if 'parent' is set. | | 495 | * We only manipulate flags of vars if 'parent' is set. |
496 | */ | | 496 | */ |
497 | static int | | 497 | static int |
498 | Var_Export1(const char *name, VarExportFlags flags) | | 498 | Var_Export1(const char *name, VarExportFlags flags) |
499 | { | | 499 | { |
500 | char tmp[BUFSIZ]; | | 500 | char tmp[BUFSIZ]; |
501 | Var *v; | | 501 | Var *v; |
502 | char *val = NULL; | | 502 | char *val = NULL; |
503 | int n; | | 503 | int n; |
504 | VarExportFlags parent = flags & VAR_EXPORT_PARENT; | | 504 | VarExportFlags parent = flags & VAR_EXPORT_PARENT; |
505 | | | 505 | |
506 | if (*name == '.') | | 506 | if (*name == '.') |
507 | return 0; /* skip internals */ | | 507 | return 0; /* skip internals */ |
508 | if (!name[1]) { | | 508 | if (!name[1]) { |
509 | /* | | 509 | /* |
510 | * A single char. | | 510 | * A single char. |
511 | * If it is one of the vars that should only appear in | | 511 | * If it is one of the vars that should only appear in |
512 | * local context, skip it, else we can get Var_Subst | | 512 | * local context, skip it, else we can get Var_Subst |
513 | * into a loop. | | 513 | * into a loop. |
514 | */ | | 514 | */ |
515 | switch (name[0]) { | | 515 | switch (name[0]) { |
516 | case '@': | | 516 | case '@': |
517 | case '%': | | 517 | case '%': |
518 | case '*': | | 518 | case '*': |
519 | case '!': | | 519 | case '!': |
520 | return 0; | | 520 | return 0; |
521 | } | | 521 | } |
522 | } | | 522 | } |
523 | v = VarFind(name, VAR_GLOBAL, 0); | | 523 | v = VarFind(name, VAR_GLOBAL, 0); |
524 | if (v == NULL) | | 524 | if (v == NULL) |
525 | return 0; | | 525 | return 0; |
526 | if (!parent && | | 526 | if (!parent && |
527 | (v->flags & (VAR_EXPORTED | VAR_REEXPORT)) == VAR_EXPORTED) { | | 527 | (v->flags & (VAR_EXPORTED | VAR_REEXPORT)) == VAR_EXPORTED) { |
528 | return 0; /* nothing to do */ | | 528 | return 0; /* nothing to do */ |
529 | } | | 529 | } |
530 | val = Buf_GetAll(&v->val, NULL); | | 530 | val = Buf_GetAll(&v->val, NULL); |
531 | if ((flags & VAR_EXPORT_LITERAL) == 0 && strchr(val, '$')) { | | 531 | if ((flags & VAR_EXPORT_LITERAL) == 0 && strchr(val, '$')) { |
532 | if (parent) { | | 532 | if (parent) { |
533 | /* | | 533 | /* |
534 | * Flag this as something we need to re-export. | | 534 | * Flag this as something we need to re-export. |
535 | * No point actually exporting it now though, | | 535 | * No point actually exporting it now though, |
536 | * the child can do it at the last minute. | | 536 | * the child can do it at the last minute. |
537 | */ | | 537 | */ |
538 | v->flags |= (VAR_EXPORTED | VAR_REEXPORT); | | 538 | v->flags |= (VAR_EXPORTED | VAR_REEXPORT); |
539 | return 1; | | 539 | return 1; |
540 | } | | 540 | } |
541 | if (v->flags & VAR_IN_USE) { | | 541 | if (v->flags & VAR_IN_USE) { |
542 | /* | | 542 | /* |
543 | * We recursed while exporting in a child. | | 543 | * We recursed while exporting in a child. |
544 | * This isn't going to end well, just skip it. | | 544 | * This isn't going to end well, just skip it. |
545 | */ | | 545 | */ |
546 | return 0; | | 546 | return 0; |
547 | } | | 547 | } |
548 | n = snprintf(tmp, sizeof(tmp), "${%s}", name); | | 548 | n = snprintf(tmp, sizeof(tmp), "${%s}", name); |
549 | if (n < (int)sizeof(tmp)) { | | 549 | if (n < (int)sizeof(tmp)) { |
550 | val = Var_Subst(tmp, VAR_GLOBAL, VARE_WANTRES); | | 550 | val = Var_Subst(tmp, VAR_GLOBAL, VARE_WANTRES); |
551 | setenv(name, val, 1); | | 551 | setenv(name, val, 1); |
552 | free(val); | | 552 | free(val); |
553 | } | | 553 | } |
554 | } else { | | 554 | } else { |
555 | if (parent) | | 555 | if (parent) |
556 | v->flags &= ~VAR_REEXPORT; /* once will do */ | | 556 | v->flags &= ~VAR_REEXPORT; /* once will do */ |
557 | if (parent || !(v->flags & VAR_EXPORTED)) | | 557 | if (parent || !(v->flags & VAR_EXPORTED)) |
558 | setenv(name, val, 1); | | 558 | setenv(name, val, 1); |
559 | } | | 559 | } |
560 | /* | | 560 | /* |
561 | * This is so Var_Set knows to call Var_Export again... | | 561 | * This is so Var_Set knows to call Var_Export again... |
562 | */ | | 562 | */ |
563 | if (parent) { | | 563 | if (parent) { |
564 | v->flags |= VAR_EXPORTED; | | 564 | v->flags |= VAR_EXPORTED; |
565 | } | | 565 | } |
566 | return 1; | | 566 | return 1; |
567 | } | | 567 | } |
568 | | | 568 | |
569 | static void | | 569 | static void |
570 | Var_ExportVars_callback(void *entry, void *unused MAKE_ATTR_UNUSED) | | 570 | Var_ExportVars_callback(void *entry, void *unused MAKE_ATTR_UNUSED) |
571 | { | | 571 | { |
572 | Var *var = entry; | | 572 | Var *var = entry; |
573 | Var_Export1(var->name, 0); | | 573 | Var_Export1(var->name, 0); |
574 | } | | 574 | } |
575 | | | 575 | |
576 | /* | | 576 | /* |
577 | * This gets called from our children. | | 577 | * This gets called from our children. |
578 | */ | | 578 | */ |
579 | void | | 579 | void |
580 | Var_ExportVars(void) | | 580 | Var_ExportVars(void) |
581 | { | | 581 | { |
582 | char tmp[BUFSIZ]; | | 582 | char tmp[BUFSIZ]; |
583 | char *val; | | 583 | char *val; |
584 | int n; | | 584 | int n; |
585 | | | 585 | |
586 | /* | | 586 | /* |
587 | * Several make's support this sort of mechanism for tracking | | 587 | * Several make's support this sort of mechanism for tracking |
588 | * recursion - but each uses a different name. | | 588 | * recursion - but each uses a different name. |
589 | * We allow the makefiles to update MAKELEVEL and ensure | | 589 | * We allow the makefiles to update MAKELEVEL and ensure |
590 | * children see a correctly incremented value. | | 590 | * children see a correctly incremented value. |
591 | */ | | 591 | */ |
592 | snprintf(tmp, sizeof(tmp), "%d", makelevel + 1); | | 592 | snprintf(tmp, sizeof(tmp), "%d", makelevel + 1); |
593 | setenv(MAKE_LEVEL_ENV, tmp, 1); | | 593 | setenv(MAKE_LEVEL_ENV, tmp, 1); |
594 | | | 594 | |
595 | if (VAR_EXPORTED_NONE == var_exportedVars) | | 595 | if (VAR_EXPORTED_NONE == var_exportedVars) |
596 | return; | | 596 | return; |
597 | | | 597 | |
598 | if (VAR_EXPORTED_ALL == var_exportedVars) { | | 598 | if (VAR_EXPORTED_ALL == var_exportedVars) { |
599 | /* Ouch! This is crazy... */ | | 599 | /* Ouch! This is crazy... */ |
600 | Hash_ForEach(&VAR_GLOBAL->context, Var_ExportVars_callback, NULL); | | 600 | Hash_ForEach(&VAR_GLOBAL->context, Var_ExportVars_callback, NULL); |
601 | return; | | 601 | return; |
602 | } | | 602 | } |
603 | /* | | 603 | /* |
604 | * We have a number of exported vars, | | 604 | * We have a number of exported vars, |
605 | */ | | 605 | */ |
606 | n = snprintf(tmp, sizeof(tmp), "${" MAKE_EXPORTED ":O:u}"); | | 606 | n = snprintf(tmp, sizeof(tmp), "${" MAKE_EXPORTED ":O:u}"); |
607 | if (n < (int)sizeof(tmp)) { | | 607 | if (n < (int)sizeof(tmp)) { |
608 | char **av; | | 608 | char **av; |
609 | char *as; | | 609 | char *as; |
610 | int ac; | | 610 | int ac; |
611 | int i; | | 611 | int i; |
612 | | | 612 | |
613 | val = Var_Subst(tmp, VAR_GLOBAL, VARE_WANTRES); | | 613 | val = Var_Subst(tmp, VAR_GLOBAL, VARE_WANTRES); |
614 | if (*val) { | | 614 | if (*val) { |
615 | av = brk_string(val, &ac, FALSE, &as); | | 615 | av = brk_string(val, &ac, FALSE, &as); |
616 | for (i = 0; i < ac; i++) | | 616 | for (i = 0; i < ac; i++) |
617 | Var_Export1(av[i], 0); | | 617 | Var_Export1(av[i], 0); |
618 | free(as); | | 618 | free(as); |
619 | free(av); | | 619 | free(av); |
620 | } | | 620 | } |
621 | free(val); | | 621 | free(val); |
622 | } | | 622 | } |
623 | } | | 623 | } |
624 | | | 624 | |
625 | /* | | 625 | /* |
626 | * This is called when .export is seen or | | 626 | * This is called when .export is seen or |
627 | * .MAKE.EXPORTED is modified. | | 627 | * .MAKE.EXPORTED is modified. |
628 | * It is also called when any exported var is modified. | | 628 | * It is also called when any exported var is modified. |
629 | */ | | 629 | */ |
630 | void | | 630 | void |
631 | Var_Export(char *str, int isExport) | | 631 | Var_Export(char *str, int isExport) |
632 | { | | 632 | { |
633 | char **av; | | 633 | char **av; |
634 | char *as; | | 634 | char *as; |
635 | VarExportFlags flags; | | 635 | VarExportFlags flags; |
636 | int ac; | | 636 | int ac; |
637 | int i; | | 637 | int i; |
638 | | | 638 | |
639 | if (isExport && (!str || !str[0])) { | | 639 | if (isExport && (!str || !str[0])) { |
640 | var_exportedVars = VAR_EXPORTED_ALL; /* use with caution! */ | | 640 | var_exportedVars = VAR_EXPORTED_ALL; /* use with caution! */ |
641 | return; | | 641 | return; |
642 | } | | 642 | } |
643 | | | 643 | |
644 | flags = 0; | | 644 | flags = 0; |
645 | if (strncmp(str, "-env", 4) == 0) { | | 645 | if (strncmp(str, "-env", 4) == 0) { |
646 | str += 4; | | 646 | str += 4; |
647 | } else if (strncmp(str, "-literal", 8) == 0) { | | 647 | } else if (strncmp(str, "-literal", 8) == 0) { |
648 | str += 8; | | 648 | str += 8; |
649 | flags |= VAR_EXPORT_LITERAL; | | 649 | flags |= VAR_EXPORT_LITERAL; |
650 | } else { | | 650 | } else { |
651 | flags |= VAR_EXPORT_PARENT; | | 651 | flags |= VAR_EXPORT_PARENT; |
652 | } | | 652 | } |
653 | | | 653 | |
654 | char *val = Var_Subst(str, VAR_GLOBAL, VARE_WANTRES); | | 654 | char *val = Var_Subst(str, VAR_GLOBAL, VARE_WANTRES); |
655 | if (*val) { | | 655 | if (*val) { |
656 | av = brk_string(val, &ac, FALSE, &as); | | 656 | av = brk_string(val, &ac, FALSE, &as); |
657 | for (i = 0; i < ac; i++) { | | 657 | for (i = 0; i < ac; i++) { |
658 | const char *name = av[i]; | | 658 | const char *name = av[i]; |
659 | if (!name[1]) { | | 659 | if (!name[1]) { |
660 | /* | | 660 | /* |
661 | * A single char. | | 661 | * A single char. |
662 | * If it is one of the vars that should only appear in | | 662 | * If it is one of the vars that should only appear in |
663 | * local context, skip it, else we can get Var_Subst | | 663 | * local context, skip it, else we can get Var_Subst |
664 | * into a loop. | | 664 | * into a loop. |
665 | */ | | 665 | */ |
666 | switch (name[0]) { | | 666 | switch (name[0]) { |
667 | case '@': | | 667 | case '@': |
668 | case '%': | | 668 | case '%': |
669 | case '*': | | 669 | case '*': |
670 | case '!': | | 670 | case '!': |
671 | continue; | | 671 | continue; |
672 | } | | 672 | } |
673 | } | | 673 | } |
674 | if (Var_Export1(name, flags)) { | | 674 | if (Var_Export1(name, flags)) { |
675 | if (VAR_EXPORTED_ALL != var_exportedVars) | | 675 | if (VAR_EXPORTED_ALL != var_exportedVars) |
676 | var_exportedVars = VAR_EXPORTED_YES; | | 676 | var_exportedVars = VAR_EXPORTED_YES; |
677 | if (isExport && (flags & VAR_EXPORT_PARENT)) { | | 677 | if (isExport && (flags & VAR_EXPORT_PARENT)) { |
678 | Var_Append(MAKE_EXPORTED, name, VAR_GLOBAL); | | 678 | Var_Append(MAKE_EXPORTED, name, VAR_GLOBAL); |
679 | } | | 679 | } |
680 | } | | 680 | } |
681 | } | | 681 | } |
682 | free(as); | | 682 | free(as); |
683 | free(av); | | 683 | free(av); |
684 | } | | 684 | } |
685 | free(val); | | 685 | free(val); |
686 | } | | 686 | } |
687 | | | 687 | |
688 | | | 688 | |
689 | extern char **environ; | | 689 | extern char **environ; |
690 | | | 690 | |
691 | /* | | 691 | /* |
692 | * This is called when .unexport[-env] is seen. | | 692 | * This is called when .unexport[-env] is seen. |
693 | * | | 693 | * |
694 | * str must have the form "unexport[-env] varname...". | | 694 | * str must have the form "unexport[-env] varname...". |
695 | */ | | 695 | */ |
696 | void | | 696 | void |
697 | Var_UnExport(char *str) | | 697 | Var_UnExport(char *str) |
698 | { | | 698 | { |
699 | char tmp[BUFSIZ]; | | 699 | char tmp[BUFSIZ]; |
700 | char *vlist; | | 700 | char *vlist; |
701 | char *cp; | | 701 | char *cp; |
702 | Boolean unexport_env; | | 702 | Boolean unexport_env; |
703 | int n; | | 703 | int n; |
704 | | | 704 | |
705 | vlist = NULL; | | 705 | vlist = NULL; |
706 | | | 706 | |
707 | str += strlen("unexport"); | | 707 | str += strlen("unexport"); |
708 | unexport_env = (strncmp(str, "-env", 4) == 0); | | 708 | unexport_env = (strncmp(str, "-env", 4) == 0); |
709 | if (unexport_env) { | | 709 | if (unexport_env) { |
710 | char **newenv; | | 710 | char **newenv; |
711 | | | 711 | |
712 | cp = getenv(MAKE_LEVEL_ENV); /* we should preserve this */ | | 712 | cp = getenv(MAKE_LEVEL_ENV); /* we should preserve this */ |
713 | if (environ == savedEnv) { | | 713 | if (environ == savedEnv) { |
714 | /* we have been here before! */ | | 714 | /* we have been here before! */ |
715 | newenv = bmake_realloc(environ, 2 * sizeof(char *)); | | 715 | newenv = bmake_realloc(environ, 2 * sizeof(char *)); |
716 | } else { | | 716 | } else { |
717 | if (savedEnv) { | | 717 | if (savedEnv) { |
718 | free(savedEnv); | | 718 | free(savedEnv); |
719 | savedEnv = NULL; | | 719 | savedEnv = NULL; |
720 | } | | 720 | } |
721 | newenv = bmake_malloc(2 * sizeof(char *)); | | 721 | newenv = bmake_malloc(2 * sizeof(char *)); |
722 | } | | 722 | } |
723 | if (!newenv) | | 723 | if (!newenv) |
724 | return; | | 724 | return; |
725 | /* Note: we cannot safely free() the original environ. */ | | 725 | /* Note: we cannot safely free() the original environ. */ |
726 | environ = savedEnv = newenv; | | 726 | environ = savedEnv = newenv; |
727 | newenv[0] = NULL; | | 727 | newenv[0] = NULL; |
728 | newenv[1] = NULL; | | 728 | newenv[1] = NULL; |
729 | if (cp && *cp) | | 729 | if (cp && *cp) |
730 | setenv(MAKE_LEVEL_ENV, cp, 1); | | 730 | setenv(MAKE_LEVEL_ENV, cp, 1); |
731 | } else { | | 731 | } else { |
732 | for (; *str != '\n' && isspace((unsigned char) *str); str++) | | 732 | for (; *str != '\n' && isspace((unsigned char) *str); str++) |
733 | continue; | | 733 | continue; |
734 | if (str[0] && str[0] != '\n') { | | 734 | if (str[0] && str[0] != '\n') { |
735 | vlist = str; | | 735 | vlist = str; |
736 | } | | 736 | } |
737 | } | | 737 | } |
738 | | | 738 | |
739 | if (!vlist) { | | 739 | if (!vlist) { |
740 | /* Using .MAKE.EXPORTED */ | | 740 | /* Using .MAKE.EXPORTED */ |
741 | vlist = Var_Subst("${" MAKE_EXPORTED ":O:u}", VAR_GLOBAL, | | 741 | vlist = Var_Subst("${" MAKE_EXPORTED ":O:u}", VAR_GLOBAL, |
742 | VARE_WANTRES); | | 742 | VARE_WANTRES); |
743 | } | | 743 | } |
744 | if (vlist) { | | 744 | if (vlist) { |
745 | Var *v; | | 745 | Var *v; |
746 | char **av; | | 746 | char **av; |
747 | char *as; | | 747 | char *as; |
748 | int ac; | | 748 | int ac; |
749 | int i; | | 749 | int i; |
750 | | | 750 | |
751 | av = brk_string(vlist, &ac, FALSE, &as); | | 751 | av = brk_string(vlist, &ac, FALSE, &as); |
752 | for (i = 0; i < ac; i++) { | | 752 | for (i = 0; i < ac; i++) { |
753 | v = VarFind(av[i], VAR_GLOBAL, 0); | | 753 | v = VarFind(av[i], VAR_GLOBAL, 0); |
754 | if (!v) | | 754 | if (!v) |
755 | continue; | | 755 | continue; |
756 | if (!unexport_env && | | 756 | if (!unexport_env && |
757 | (v->flags & (VAR_EXPORTED | VAR_REEXPORT)) == VAR_EXPORTED) | | 757 | (v->flags & (VAR_EXPORTED | VAR_REEXPORT)) == VAR_EXPORTED) |
758 | unsetenv(v->name); | | 758 | unsetenv(v->name); |
759 | v->flags &= ~(VAR_EXPORTED | VAR_REEXPORT); | | 759 | v->flags &= ~(VAR_EXPORTED | VAR_REEXPORT); |
760 | /* | | 760 | /* |
761 | * If we are unexporting a list, | | 761 | * If we are unexporting a list, |
762 | * remove each one from .MAKE.EXPORTED. | | 762 | * remove each one from .MAKE.EXPORTED. |
763 | * If we are removing them all, | | 763 | * If we are removing them all, |
764 | * just delete .MAKE.EXPORTED below. | | 764 | * just delete .MAKE.EXPORTED below. |
765 | */ | | 765 | */ |
766 | if (vlist == str) { | | 766 | if (vlist == str) { |
767 | n = snprintf(tmp, sizeof(tmp), | | 767 | n = snprintf(tmp, sizeof(tmp), |
768 | "${" MAKE_EXPORTED ":N%s}", v->name); | | 768 | "${" MAKE_EXPORTED ":N%s}", v->name); |
769 | if (n < (int)sizeof(tmp)) { | | 769 | if (n < (int)sizeof(tmp)) { |
770 | cp = Var_Subst(tmp, VAR_GLOBAL, VARE_WANTRES); | | 770 | cp = Var_Subst(tmp, VAR_GLOBAL, VARE_WANTRES); |
771 | Var_Set(MAKE_EXPORTED, cp, VAR_GLOBAL); | | 771 | Var_Set(MAKE_EXPORTED, cp, VAR_GLOBAL); |
772 | free(cp); | | 772 | free(cp); |
773 | } | | 773 | } |
774 | } | | 774 | } |
775 | } | | 775 | } |
776 | free(as); | | 776 | free(as); |
777 | free(av); | | 777 | free(av); |
778 | if (vlist != str) { | | 778 | if (vlist != str) { |
779 | Var_Delete(MAKE_EXPORTED, VAR_GLOBAL); | | 779 | Var_Delete(MAKE_EXPORTED, VAR_GLOBAL); |
780 | free(vlist); | | 780 | free(vlist); |
781 | } | | 781 | } |
782 | } | | 782 | } |
783 | } | | 783 | } |
784 | | | 784 | |
785 | static void | | 785 | static void |
786 | Var_Set_with_flags(const char *name, const char *val, GNode *ctxt, | | 786 | Var_Set_with_flags(const char *name, const char *val, GNode *ctxt, |
787 | VarSet_Flags flags) | | 787 | VarSet_Flags flags) |
788 | { | | 788 | { |
789 | Var *v; | | 789 | Var *v; |
790 | char *expanded_name = NULL; | | 790 | char *expanded_name = NULL; |
791 | | | 791 | |
792 | /* | | 792 | /* |
793 | * We only look for a variable in the given context since anything set | | 793 | * We only look for a variable in the given context since anything set |
794 | * here will override anything in a lower context, so there's not much | | 794 | * here will override anything in a lower context, so there's not much |
795 | * point in searching them all just to save a bit of memory... | | 795 | * point in searching them all just to save a bit of memory... |
796 | */ | | 796 | */ |
797 | if (strchr(name, '$') != NULL) { | | 797 | if (strchr(name, '$') != NULL) { |
798 | expanded_name = Var_Subst(name, ctxt, VARE_WANTRES); | | 798 | expanded_name = Var_Subst(name, ctxt, VARE_WANTRES); |
799 | if (expanded_name[0] == '\0') { | | 799 | if (expanded_name[0] == '\0') { |
800 | if (DEBUG(VAR)) { | | 800 | if (DEBUG(VAR)) { |
801 | fprintf(debug_file, "Var_Set(\"%s\", \"%s\", ...) " | | 801 | fprintf(debug_file, "Var_Set(\"%s\", \"%s\", ...) " |
802 | "name expands to empty string - ignored\n", | | 802 | "name expands to empty string - ignored\n", |
803 | name, val); | | 803 | name, val); |
804 | } | | 804 | } |
805 | free(expanded_name); | | 805 | free(expanded_name); |
806 | return; | | 806 | return; |
807 | } | | 807 | } |
808 | name = expanded_name; | | 808 | name = expanded_name; |
809 | } | | 809 | } |
810 | if (ctxt == VAR_GLOBAL) { | | 810 | if (ctxt == VAR_GLOBAL) { |
811 | v = VarFind(name, VAR_CMD, 0); | | 811 | v = VarFind(name, VAR_CMD, 0); |
812 | if (v != NULL) { | | 812 | if (v != NULL) { |
813 | if ((v->flags & VAR_FROM_CMD)) { | | 813 | if ((v->flags & VAR_FROM_CMD)) { |
814 | if (DEBUG(VAR)) { | | 814 | if (DEBUG(VAR)) { |
815 | fprintf(debug_file, "%s:%s = %s ignored!\n", ctxt->name, name, val); | | 815 | fprintf(debug_file, "%s:%s = %s ignored!\n", ctxt->name, name, val); |
816 | } | | 816 | } |
817 | goto out; | | 817 | goto out; |
818 | } | | 818 | } |
819 | VarFreeEnv(v, TRUE); | | 819 | VarFreeEnv(v, TRUE); |
820 | } | | 820 | } |
821 | } | | 821 | } |
822 | v = VarFind(name, ctxt, 0); | | 822 | v = VarFind(name, ctxt, 0); |
823 | if (v == NULL) { | | 823 | if (v == NULL) { |
824 | if (ctxt == VAR_CMD && (flags & VAR_NO_EXPORT) == 0) { | | 824 | if (ctxt == VAR_CMD && (flags & VAR_NO_EXPORT) == 0) { |
825 | /* | | 825 | /* |
826 | * This var would normally prevent the same name being added | | 826 | * This var would normally prevent the same name being added |
827 | * to VAR_GLOBAL, so delete it from there if needed. | | 827 | * to VAR_GLOBAL, so delete it from there if needed. |
828 | * Otherwise -V name may show the wrong value. | | 828 | * Otherwise -V name may show the wrong value. |
829 | */ | | 829 | */ |
830 | Var_Delete(name, VAR_GLOBAL); | | 830 | Var_Delete(name, VAR_GLOBAL); |
831 | } | | 831 | } |
832 | VarAdd(name, val, ctxt); | | 832 | VarAdd(name, val, ctxt); |
833 | } else { | | 833 | } else { |
834 | Buf_Empty(&v->val); | | 834 | Buf_Empty(&v->val); |
835 | if (val) | | 835 | if (val) |
836 | Buf_AddStr(&v->val, val); | | 836 | Buf_AddStr(&v->val, val); |
837 | | | 837 | |
838 | if (DEBUG(VAR)) { | | 838 | if (DEBUG(VAR)) { |
839 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); | | 839 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, val); |
840 | } | | 840 | } |
841 | if ((v->flags & VAR_EXPORTED)) { | | 841 | if ((v->flags & VAR_EXPORTED)) { |
842 | Var_Export1(name, VAR_EXPORT_PARENT); | | 842 | Var_Export1(name, VAR_EXPORT_PARENT); |
843 | } | | 843 | } |
844 | } | | 844 | } |
845 | /* | | 845 | /* |
846 | * Any variables given on the command line are automatically exported | | 846 | * Any variables given on the command line are automatically exported |
847 | * to the environment (as per POSIX standard) | | 847 | * to the environment (as per POSIX standard) |
848 | */ | | 848 | */ |
849 | if (ctxt == VAR_CMD && (flags & VAR_NO_EXPORT) == 0) { | | 849 | if (ctxt == VAR_CMD && (flags & VAR_NO_EXPORT) == 0) { |
850 | if (v == NULL) { | | 850 | if (v == NULL) { |
851 | /* we just added it */ | | 851 | /* we just added it */ |
852 | v = VarFind(name, ctxt, 0); | | 852 | v = VarFind(name, ctxt, 0); |
853 | } | | 853 | } |
854 | if (v != NULL) | | 854 | if (v != NULL) |
855 | v->flags |= VAR_FROM_CMD; | | 855 | v->flags |= VAR_FROM_CMD; |
856 | /* | | 856 | /* |
857 | * If requested, don't export these in the environment | | 857 | * If requested, don't export these in the environment |
858 | * individually. We still put them in MAKEOVERRIDES so | | 858 | * individually. We still put them in MAKEOVERRIDES so |
859 | * that the command-line settings continue to override | | 859 | * that the command-line settings continue to override |
860 | * Makefile settings. | | 860 | * Makefile settings. |
861 | */ | | 861 | */ |
862 | if (varNoExportEnv != TRUE) | | 862 | if (varNoExportEnv != TRUE) |
863 | setenv(name, val ? val : "", 1); | | 863 | setenv(name, val ? val : "", 1); |
864 | | | 864 | |
865 | Var_Append(MAKEOVERRIDES, name, VAR_GLOBAL); | | 865 | Var_Append(MAKEOVERRIDES, name, VAR_GLOBAL); |
866 | } | | 866 | } |
867 | if (name[0] == '.' && strcmp(name, SAVE_DOLLARS) == 0) | | 867 | if (name[0] == '.' && strcmp(name, SAVE_DOLLARS) == 0) |
868 | save_dollars = s2Boolean(val, save_dollars); | | 868 | save_dollars = s2Boolean(val, save_dollars); |
869 | | | 869 | |
870 | out: | | 870 | out: |
871 | free(expanded_name); | | 871 | free(expanded_name); |
872 | if (v != NULL) | | 872 | if (v != NULL) |
873 | VarFreeEnv(v, TRUE); | | 873 | VarFreeEnv(v, TRUE); |
874 | } | | 874 | } |
875 | | | 875 | |
876 | /*- | | 876 | /*- |
877 | *----------------------------------------------------------------------- | | 877 | *----------------------------------------------------------------------- |
878 | * Var_Set -- | | 878 | * Var_Set -- |
879 | * Set the variable name to the value val in the given context. | | 879 | * Set the variable name to the value val in the given context. |
880 | * | | 880 | * |
881 | * Input: | | 881 | * Input: |
882 | * name name of variable to set | | 882 | * name name of variable to set |
883 | * val value to give to the variable | | 883 | * val value to give to the variable |
884 | * ctxt context in which to set it | | 884 | * ctxt context in which to set it |
885 | * | | 885 | * |
886 | * Side Effects: | | 886 | * Side Effects: |
887 | * If the variable doesn't yet exist, a new record is created for it. | | 887 | * If the variable doesn't yet exist, a new record is created for it. |
888 | * Else the old value is freed and the new one stuck in its place | | 888 | * Else the old value is freed and the new one stuck in its place |
889 | * | | 889 | * |
890 | * Notes: | | 890 | * Notes: |
891 | * The variable is searched for only in its context before being | | 891 | * The variable is searched for only in its context before being |
892 | * created in that context. I.e. if the context is VAR_GLOBAL, | | 892 | * created in that context. I.e. if the context is VAR_GLOBAL, |
893 | * only VAR_GLOBAL->context is searched. Likewise if it is VAR_CMD, only | | 893 | * only VAR_GLOBAL->context is searched. Likewise if it is VAR_CMD, only |
894 | * VAR_CMD->context is searched. This is done to avoid the literally | | 894 | * VAR_CMD->context is searched. This is done to avoid the literally |
895 | * thousands of unnecessary strcmp's that used to be done to | | 895 | * thousands of unnecessary strcmp's that used to be done to |
896 | * set, say, $(@) or $(<). | | 896 | * set, say, $(@) or $(<). |
897 | * If the context is VAR_GLOBAL though, we check if the variable | | 897 | * If the context is VAR_GLOBAL though, we check if the variable |
898 | * was set in VAR_CMD from the command line and skip it if so. | | 898 | * was set in VAR_CMD from the command line and skip it if so. |
899 | *----------------------------------------------------------------------- | | 899 | *----------------------------------------------------------------------- |
900 | */ | | 900 | */ |
901 | void | | 901 | void |
902 | Var_Set(const char *name, const char *val, GNode *ctxt) | | 902 | Var_Set(const char *name, const char *val, GNode *ctxt) |
903 | { | | 903 | { |
904 | Var_Set_with_flags(name, val, ctxt, 0); | | 904 | Var_Set_with_flags(name, val, ctxt, 0); |
905 | } | | 905 | } |
906 | | | 906 | |
907 | /*- | | 907 | /*- |
908 | *----------------------------------------------------------------------- | | 908 | *----------------------------------------------------------------------- |
909 | * Var_Append -- | | 909 | * Var_Append -- |
910 | * The variable of the given name has the given value appended to it in | | 910 | * The variable of the given name has the given value appended to it in |
911 | * the given context. | | 911 | * the given context. |
912 | * | | 912 | * |
913 | * Input: | | 913 | * Input: |
914 | * name name of variable to modify | | 914 | * name name of variable to modify |
915 | * val String to append to it | | 915 | * val String to append to it |
916 | * ctxt Context in which this should occur | | 916 | * ctxt Context in which this should occur |
917 | * | | 917 | * |
918 | * Side Effects: | | 918 | * Side Effects: |
919 | * If the variable doesn't exist, it is created. Else the strings | | 919 | * If the variable doesn't exist, it is created. Else the strings |
920 | * are concatenated (with a space in between). | | 920 | * are concatenated (with a space in between). |
921 | * | | 921 | * |
922 | * Notes: | | 922 | * Notes: |
923 | * Only if the variable is being sought in the global context is the | | 923 | * Only if the variable is being sought in the global context is the |
924 | * environment searched. | | 924 | * environment searched. |
925 | * XXX: Knows its calling circumstances in that if called with ctxt | | 925 | * XXX: Knows its calling circumstances in that if called with ctxt |
926 | * an actual target, it will only search that context since only | | 926 | * an actual target, it will only search that context since only |
927 | * a local variable could be being appended to. This is actually | | 927 | * a local variable could be being appended to. This is actually |
928 | * a big win and must be tolerated. | | 928 | * a big win and must be tolerated. |
929 | *----------------------------------------------------------------------- | | 929 | *----------------------------------------------------------------------- |
930 | */ | | 930 | */ |
931 | void | | 931 | void |
932 | Var_Append(const char *name, const char *val, GNode *ctxt) | | 932 | Var_Append(const char *name, const char *val, GNode *ctxt) |
933 | { | | 933 | { |
934 | Var *v; | | 934 | Var *v; |
935 | Hash_Entry *h; | | 935 | Hash_Entry *h; |
936 | char *expanded_name = NULL; | | 936 | char *expanded_name = NULL; |
937 | | | 937 | |
938 | if (strchr(name, '$') != NULL) { | | 938 | if (strchr(name, '$') != NULL) { |
939 | expanded_name = Var_Subst(name, ctxt, VARE_WANTRES); | | 939 | expanded_name = Var_Subst(name, ctxt, VARE_WANTRES); |
940 | if (expanded_name[0] == '\0') { | | 940 | if (expanded_name[0] == '\0') { |
941 | if (DEBUG(VAR)) { | | 941 | if (DEBUG(VAR)) { |
942 | fprintf(debug_file, "Var_Append(\"%s\", \"%s\", ...) " | | 942 | fprintf(debug_file, "Var_Append(\"%s\", \"%s\", ...) " |
943 | "name expands to empty string - ignored\n", | | 943 | "name expands to empty string - ignored\n", |
944 | name, val); | | 944 | name, val); |
945 | } | | 945 | } |
946 | free(expanded_name); | | 946 | free(expanded_name); |
947 | return; | | 947 | return; |
948 | } | | 948 | } |
949 | name = expanded_name; | | 949 | name = expanded_name; |
950 | } | | 950 | } |
951 | | | 951 | |
952 | v = VarFind(name, ctxt, ctxt == VAR_GLOBAL ? (FIND_CMD | FIND_ENV) : 0); | | 952 | v = VarFind(name, ctxt, ctxt == VAR_GLOBAL ? (FIND_CMD | FIND_ENV) : 0); |
953 | | | 953 | |
954 | if (v == NULL) { | | 954 | if (v == NULL) { |
955 | Var_Set(name, val, ctxt); | | 955 | Var_Set(name, val, ctxt); |
956 | } else if (ctxt == VAR_CMD || !(v->flags & VAR_FROM_CMD)) { | | 956 | } else if (ctxt == VAR_CMD || !(v->flags & VAR_FROM_CMD)) { |
957 | Buf_AddByte(&v->val, ' '); | | 957 | Buf_AddByte(&v->val, ' '); |
958 | Buf_AddStr(&v->val, val); | | 958 | Buf_AddStr(&v->val, val); |
959 | | | 959 | |
960 | if (DEBUG(VAR)) { | | 960 | if (DEBUG(VAR)) { |
961 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, | | 961 | fprintf(debug_file, "%s:%s = %s\n", ctxt->name, name, |
962 | Buf_GetAll(&v->val, NULL)); | | 962 | Buf_GetAll(&v->val, NULL)); |
963 | } | | 963 | } |
964 | | | 964 | |
965 | if (v->flags & VAR_FROM_ENV) { | | 965 | if (v->flags & VAR_FROM_ENV) { |
966 | /* | | 966 | /* |
967 | * If the original variable came from the environment, we | | 967 | * If the original variable came from the environment, we |
968 | * have to install it in the global context (we could place | | 968 | * have to install it in the global context (we could place |
969 | * it in the environment, but then we should provide a way to | | 969 | * it in the environment, but then we should provide a way to |
970 | * export other variables...) | | 970 | * export other variables...) |
971 | */ | | 971 | */ |
972 | v->flags &= ~VAR_FROM_ENV; | | 972 | v->flags &= ~VAR_FROM_ENV; |
973 | h = Hash_CreateEntry(&ctxt->context, name, NULL); | | 973 | h = Hash_CreateEntry(&ctxt->context, name, NULL); |
974 | Hash_SetValue(h, v); | | 974 | Hash_SetValue(h, v); |
975 | } | | 975 | } |
976 | } | | 976 | } |
977 | free(expanded_name); | | 977 | free(expanded_name); |
978 | } | | 978 | } |
979 | | | 979 | |
980 | /*- | | 980 | /*- |
981 | *----------------------------------------------------------------------- | | 981 | *----------------------------------------------------------------------- |
982 | * Var_Exists -- | | 982 | * Var_Exists -- |
983 | * See if the given variable exists. | | 983 | * See if the given variable exists. |
984 | * | | 984 | * |
985 | * Input: | | 985 | * Input: |
986 | * name Variable to find | | 986 | * name Variable to find |
987 | * ctxt Context in which to start search | | 987 | * ctxt Context in which to start search |
988 | * | | 988 | * |
989 | * Results: | | 989 | * Results: |
990 | * TRUE if it does, FALSE if it doesn't | | 990 | * TRUE if it does, FALSE if it doesn't |
991 | * | | 991 | * |
992 | * Side Effects: | | 992 | * Side Effects: |
993 | * None. | | 993 | * None. |
994 | * | | 994 | * |
995 | *----------------------------------------------------------------------- | | 995 | *----------------------------------------------------------------------- |
996 | */ | | 996 | */ |
997 | Boolean | | 997 | Boolean |
998 | Var_Exists(const char *name, GNode *ctxt) | | 998 | Var_Exists(const char *name, GNode *ctxt) |
999 | { | | 999 | { |
1000 | Var *v; | | 1000 | Var *v; |
1001 | char *cp; | | 1001 | char *cp; |
1002 | | | 1002 | |
1003 | if ((cp = strchr(name, '$')) != NULL) | | 1003 | if ((cp = strchr(name, '$')) != NULL) |
1004 | cp = Var_Subst(name, ctxt, VARE_WANTRES); | | 1004 | cp = Var_Subst(name, ctxt, VARE_WANTRES); |
1005 | v = VarFind(cp ? cp : name, ctxt, FIND_CMD | FIND_GLOBAL | FIND_ENV); | | 1005 | v = VarFind(cp ? cp : name, ctxt, FIND_CMD | FIND_GLOBAL | FIND_ENV); |
1006 | free(cp); | | 1006 | free(cp); |
1007 | if (v == NULL) | | 1007 | if (v == NULL) |
1008 | return FALSE; | | 1008 | return FALSE; |
1009 | | | 1009 | |
1010 | (void)VarFreeEnv(v, TRUE); | | 1010 | (void)VarFreeEnv(v, TRUE); |
1011 | return TRUE; | | 1011 | return TRUE; |
1012 | } | | 1012 | } |
1013 | | | 1013 | |
1014 | /*- | | 1014 | /*- |
1015 | *----------------------------------------------------------------------- | | 1015 | *----------------------------------------------------------------------- |
1016 | * Var_Value -- | | 1016 | * Var_Value -- |
1017 | * Return the unexpanded value of the given variable in the given | | 1017 | * Return the unexpanded value of the given variable in the given |
1018 | * context. | | 1018 | * context. |
1019 | * | | 1019 | * |
1020 | * Input: | | 1020 | * Input: |
1021 | * name name to find | | 1021 | * name name to find |
1022 | * ctxt context in which to search for it | | 1022 | * ctxt context in which to search for it |
1023 | * | | 1023 | * |
1024 | * Results: | | 1024 | * Results: |
1025 | * The value if the variable exists, NULL if it doesn't. | | 1025 | * The value if the variable exists, NULL if it doesn't. |
1026 | * If the returned value is not NULL, the caller must free *freeIt | | 1026 | * If the returned value is not NULL, the caller must free *freeIt |
1027 | * as soon as the returned value is no longer needed. | | 1027 | * as soon as the returned value is no longer needed. |
1028 | *----------------------------------------------------------------------- | | 1028 | *----------------------------------------------------------------------- |
1029 | */ | | 1029 | */ |
1030 | char * | | 1030 | char * |
1031 | Var_Value(const char *name, GNode *ctxt, char **freeIt) | | 1031 | Var_Value(const char *name, GNode *ctxt, char **freeIt) |
1032 | { | | 1032 | { |
1033 | Var *v = VarFind(name, ctxt, FIND_ENV | FIND_GLOBAL | FIND_CMD); | | 1033 | Var *v = VarFind(name, ctxt, FIND_ENV | FIND_GLOBAL | FIND_CMD); |
1034 | *freeIt = NULL; | | 1034 | *freeIt = NULL; |
1035 | if (v == NULL) | | 1035 | if (v == NULL) |
1036 | return NULL; | | 1036 | return NULL; |
1037 | | | 1037 | |
1038 | char *p = Buf_GetAll(&v->val, NULL); | | 1038 | char *p = Buf_GetAll(&v->val, NULL); |
1039 | if (VarFreeEnv(v, FALSE)) | | 1039 | if (VarFreeEnv(v, FALSE)) |
1040 | *freeIt = p; | | 1040 | *freeIt = p; |
1041 | return p; | | 1041 | return p; |
1042 | } | | 1042 | } |
1043 | | | 1043 | |
1044 | | | 1044 | |
1045 | /* SepBuf is a string being built from "words", interleaved with separators. */ | | 1045 | /* SepBuf is a string being built from "words", interleaved with separators. */ |
1046 | typedef struct { | | 1046 | typedef struct { |
1047 | Buffer buf; | | 1047 | Buffer buf; |
1048 | Boolean needSep; | | 1048 | Boolean needSep; |
1049 | char sep; | | 1049 | char sep; |
1050 | } SepBuf; | | 1050 | } SepBuf; |
1051 | | | 1051 | |
1052 | static void | | 1052 | static void |
1053 | SepBuf_Init(SepBuf *buf, char sep) | | 1053 | SepBuf_Init(SepBuf *buf, char sep) |
1054 | { | | 1054 | { |
1055 | Buf_Init(&buf->buf, 32 /* bytes */); | | 1055 | Buf_Init(&buf->buf, 32 /* bytes */); |
1056 | buf->needSep = FALSE; | | 1056 | buf->needSep = FALSE; |
1057 | buf->sep = sep; | | 1057 | buf->sep = sep; |
1058 | } | | 1058 | } |
1059 | | | 1059 | |
1060 | static void | | 1060 | static void |
1061 | SepBuf_Sep(SepBuf *buf) | | 1061 | SepBuf_Sep(SepBuf *buf) |
1062 | { | | 1062 | { |
1063 | buf->needSep = TRUE; | | 1063 | buf->needSep = TRUE; |
1064 | } | | 1064 | } |
1065 | | | 1065 | |
1066 | static void | | 1066 | static void |
1067 | SepBuf_AddBytes(SepBuf *buf, const char *mem, size_t mem_size) | | 1067 | SepBuf_AddBytes(SepBuf *buf, const char *mem, size_t mem_size) |
1068 | { | | 1068 | { |
1069 | if (mem_size == 0) | | 1069 | if (mem_size == 0) |
1070 | return; | | 1070 | return; |
1071 | if (buf->needSep && buf->sep != '\0') { | | 1071 | if (buf->needSep && buf->sep != '\0') { |
1072 | Buf_AddByte(&buf->buf, buf->sep); | | 1072 | Buf_AddByte(&buf->buf, buf->sep); |
1073 | buf->needSep = FALSE; | | 1073 | buf->needSep = FALSE; |
1074 | } | | 1074 | } |
1075 | Buf_AddBytes(&buf->buf, mem_size, mem); | | 1075 | Buf_AddBytes(&buf->buf, mem_size, mem); |
1076 | } | | 1076 | } |
1077 | | | 1077 | |
1078 | static void | | 1078 | static void |
| @@ -1527,1999 +1527,1999 @@ VarSelectWords(Byte sep, Boolean oneBigW | | | @@ -1527,1999 +1527,1999 @@ VarSelectWords(Byte sep, Boolean oneBigW |
1527 | av = bmake_malloc((ac + 1) * sizeof(char *)); | | 1527 | av = bmake_malloc((ac + 1) * sizeof(char *)); |
1528 | as = bmake_strdup(str); | | 1528 | as = bmake_strdup(str); |
1529 | av[0] = as; | | 1529 | av[0] = as; |
1530 | av[1] = NULL; | | 1530 | av[1] = NULL; |
1531 | } else { | | 1531 | } else { |
1532 | av = brk_string(str, &ac, FALSE, &as); | | 1532 | av = brk_string(str, &ac, FALSE, &as); |
1533 | } | | 1533 | } |
1534 | | | 1534 | |
1535 | /* | | 1535 | /* |
1536 | * Now sanitize seldata. | | 1536 | * Now sanitize seldata. |
1537 | * If seldata->start or seldata->end are negative, convert them to | | 1537 | * If seldata->start or seldata->end are negative, convert them to |
1538 | * the positive equivalents (-1 gets converted to argc, -2 gets | | 1538 | * the positive equivalents (-1 gets converted to argc, -2 gets |
1539 | * converted to (argc-1), etc.). | | 1539 | * converted to (argc-1), etc.). |
1540 | */ | | 1540 | */ |
1541 | if (first < 0) | | 1541 | if (first < 0) |
1542 | first += ac + 1; | | 1542 | first += ac + 1; |
1543 | if (last < 0) | | 1543 | if (last < 0) |
1544 | last += ac + 1; | | 1544 | last += ac + 1; |
1545 | | | 1545 | |
1546 | /* | | 1546 | /* |
1547 | * We avoid scanning more of the list than we need to. | | 1547 | * We avoid scanning more of the list than we need to. |
1548 | */ | | 1548 | */ |
1549 | if (first > last) { | | 1549 | if (first > last) { |
1550 | start = MIN(ac, first) - 1; | | 1550 | start = MIN(ac, first) - 1; |
1551 | end = MAX(0, last - 1); | | 1551 | end = MAX(0, last - 1); |
1552 | step = -1; | | 1552 | step = -1; |
1553 | } else { | | 1553 | } else { |
1554 | start = MAX(0, first - 1); | | 1554 | start = MAX(0, first - 1); |
1555 | end = MIN(ac, last); | | 1555 | end = MIN(ac, last); |
1556 | step = 1; | | 1556 | step = 1; |
1557 | } | | 1557 | } |
1558 | | | 1558 | |
1559 | for (i = start; (step < 0) == (i >= end); i += step) { | | 1559 | for (i = start; (step < 0) == (i >= end); i += step) { |
1560 | SepBuf_AddStr(&buf, av[i]); | | 1560 | SepBuf_AddStr(&buf, av[i]); |
1561 | SepBuf_Sep(&buf); | | 1561 | SepBuf_Sep(&buf); |
1562 | } | | 1562 | } |
1563 | | | 1563 | |
1564 | free(as); | | 1564 | free(as); |
1565 | free(av); | | 1565 | free(av); |
1566 | | | 1566 | |
1567 | return SepBuf_Destroy(&buf, FALSE); | | 1567 | return SepBuf_Destroy(&buf, FALSE); |
1568 | } | | 1568 | } |
1569 | | | 1569 | |
1570 | | | 1570 | |
1571 | /* Callback for ModifyWords to implement the :tA modifier. | | 1571 | /* Callback for ModifyWords to implement the :tA modifier. |
1572 | * Replace each word with the result of realpath() if successful. */ | | 1572 | * Replace each word with the result of realpath() if successful. */ |
1573 | static void | | 1573 | static void |
1574 | ModifyWord_Realpath(const char *word, SepBuf *buf, void *data MAKE_ATTR_UNUSED) | | 1574 | ModifyWord_Realpath(const char *word, SepBuf *buf, void *data MAKE_ATTR_UNUSED) |
1575 | { | | 1575 | { |
1576 | struct stat st; | | 1576 | struct stat st; |
1577 | char rbuf[MAXPATHLEN]; | | 1577 | char rbuf[MAXPATHLEN]; |
1578 | | | 1578 | |
1579 | const char *rp = cached_realpath(word, rbuf); | | 1579 | const char *rp = cached_realpath(word, rbuf); |
1580 | if (rp != NULL && *rp == '/' && stat(rp, &st) == 0) | | 1580 | if (rp != NULL && *rp == '/' && stat(rp, &st) == 0) |
1581 | word = rp; | | 1581 | word = rp; |
1582 | | | 1582 | |
1583 | SepBuf_AddStr(buf, word); | | 1583 | SepBuf_AddStr(buf, word); |
1584 | } | | 1584 | } |
1585 | | | 1585 | |
1586 | /*- | | 1586 | /*- |
1587 | *----------------------------------------------------------------------- | | 1587 | *----------------------------------------------------------------------- |
1588 | * Modify each of the words of the passed string using the given function. | | 1588 | * Modify each of the words of the passed string using the given function. |
1589 | * | | 1589 | * |
1590 | * Input: | | 1590 | * Input: |
1591 | * str String whose words should be modified | | 1591 | * str String whose words should be modified |
1592 | * modifyWord Function that modifies a single word | | 1592 | * modifyWord Function that modifies a single word |
1593 | * data Custom data for modifyWord | | 1593 | * data Custom data for modifyWord |
1594 | * | | 1594 | * |
1595 | * Results: | | 1595 | * Results: |
1596 | * A string of all the words modified appropriately. | | 1596 | * A string of all the words modified appropriately. |
1597 | *----------------------------------------------------------------------- | | 1597 | *----------------------------------------------------------------------- |
1598 | */ | | 1598 | */ |
1599 | static char * | | 1599 | static char * |
1600 | ModifyWords(GNode *ctx, Byte sep, Boolean oneBigWord, | | 1600 | ModifyWords(GNode *ctx, Byte sep, Boolean oneBigWord, |
1601 | const char *str, ModifyWordsCallback modifyWord, void *data) | | 1601 | const char *str, ModifyWordsCallback modifyWord, void *data) |
1602 | { | | 1602 | { |
1603 | if (oneBigWord) { | | 1603 | if (oneBigWord) { |
1604 | SepBuf result; | | 1604 | SepBuf result; |
1605 | SepBuf_Init(&result, sep); | | 1605 | SepBuf_Init(&result, sep); |
1606 | modifyWord(str, &result, data); | | 1606 | modifyWord(str, &result, data); |
1607 | return SepBuf_Destroy(&result, FALSE); | | 1607 | return SepBuf_Destroy(&result, FALSE); |
1608 | } | | 1608 | } |
1609 | | | 1609 | |
1610 | SepBuf result; | | 1610 | SepBuf result; |
1611 | char **av; /* word list */ | | 1611 | char **av; /* word list */ |
1612 | char *as; /* word list memory */ | | 1612 | char *as; /* word list memory */ |
1613 | int ac, i; | | 1613 | int ac, i; |
1614 | | | 1614 | |
1615 | SepBuf_Init(&result, sep); | | 1615 | SepBuf_Init(&result, sep); |
1616 | | | 1616 | |
1617 | av = brk_string(str, &ac, FALSE, &as); | | 1617 | av = brk_string(str, &ac, FALSE, &as); |
1618 | | | 1618 | |
1619 | if (DEBUG(VAR)) { | | 1619 | if (DEBUG(VAR)) { |
1620 | fprintf(debug_file, "ModifyWords: split \"%s\" into %d words\n", | | 1620 | fprintf(debug_file, "ModifyWords: split \"%s\" into %d words\n", |
1621 | str, ac); | | 1621 | str, ac); |
1622 | } | | 1622 | } |
1623 | | | 1623 | |
1624 | for (i = 0; i < ac; i++) { | | 1624 | for (i = 0; i < ac; i++) { |
1625 | size_t orig_count = result.buf.count; | | 1625 | size_t orig_count = result.buf.count; |
1626 | modifyWord(av[i], &result, data); | | 1626 | modifyWord(av[i], &result, data); |
1627 | size_t count = result.buf.count; | | 1627 | size_t count = result.buf.count; |
1628 | if (count != orig_count) | | 1628 | if (count != orig_count) |
1629 | SepBuf_Sep(&result); | | 1629 | SepBuf_Sep(&result); |
1630 | } | | 1630 | } |
1631 | | | 1631 | |
1632 | free(as); | | 1632 | free(as); |
1633 | free(av); | | 1633 | free(av); |
1634 | | | 1634 | |
1635 | return SepBuf_Destroy(&result, FALSE); | | 1635 | return SepBuf_Destroy(&result, FALSE); |
1636 | } | | 1636 | } |
1637 | | | 1637 | |
1638 | | | 1638 | |
1639 | static int | | 1639 | static int |
1640 | VarWordCompare(const void *a, const void *b) | | 1640 | VarWordCompare(const void *a, const void *b) |
1641 | { | | 1641 | { |
1642 | int r = strcmp(*(const char * const *)a, *(const char * const *)b); | | 1642 | int r = strcmp(*(const char * const *)a, *(const char * const *)b); |
1643 | return r; | | 1643 | return r; |
1644 | } | | 1644 | } |
1645 | | | 1645 | |
1646 | static int | | 1646 | static int |
1647 | VarWordCompareReverse(const void *a, const void *b) | | 1647 | VarWordCompareReverse(const void *a, const void *b) |
1648 | { | | 1648 | { |
1649 | int r = strcmp(*(const char * const *)b, *(const char * const *)a); | | 1649 | int r = strcmp(*(const char * const *)b, *(const char * const *)a); |
1650 | return r; | | 1650 | return r; |
1651 | } | | 1651 | } |
1652 | | | 1652 | |
1653 | /*- | | 1653 | /*- |
1654 | *----------------------------------------------------------------------- | | 1654 | *----------------------------------------------------------------------- |
1655 | * VarOrder -- | | 1655 | * VarOrder -- |
1656 | * Order the words in the string. | | 1656 | * Order the words in the string. |
1657 | * | | 1657 | * |
1658 | * Input: | | 1658 | * Input: |
1659 | * str String whose words should be sorted. | | 1659 | * str String whose words should be sorted. |
1660 | * otype How to order: s - sort, x - random. | | 1660 | * otype How to order: s - sort, x - random. |
1661 | * | | 1661 | * |
1662 | * Results: | | 1662 | * Results: |
1663 | * A string containing the words ordered. | | 1663 | * A string containing the words ordered. |
1664 | * | | 1664 | * |
1665 | * Side Effects: | | 1665 | * Side Effects: |
1666 | * None. | | 1666 | * None. |
1667 | * | | 1667 | * |
1668 | *----------------------------------------------------------------------- | | 1668 | *----------------------------------------------------------------------- |
1669 | */ | | 1669 | */ |
1670 | static char * | | 1670 | static char * |
1671 | VarOrder(const char *str, const char otype) | | 1671 | VarOrder(const char *str, const char otype) |
1672 | { | | 1672 | { |
1673 | Buffer buf; /* Buffer for the new string */ | | 1673 | Buffer buf; /* Buffer for the new string */ |
1674 | char **av; /* word list */ | | 1674 | char **av; /* word list */ |
1675 | char *as; /* word list memory */ | | 1675 | char *as; /* word list memory */ |
1676 | int ac, i; | | 1676 | int ac, i; |
1677 | | | 1677 | |
1678 | Buf_Init(&buf, 0); | | 1678 | Buf_Init(&buf, 0); |
1679 | | | 1679 | |
1680 | av = brk_string(str, &ac, FALSE, &as); | | 1680 | av = brk_string(str, &ac, FALSE, &as); |
1681 | | | 1681 | |
1682 | if (ac > 0) { | | 1682 | if (ac > 0) { |
1683 | switch (otype) { | | 1683 | switch (otype) { |
1684 | case 'r': /* reverse sort alphabetically */ | | 1684 | case 'r': /* reverse sort alphabetically */ |
1685 | qsort(av, ac, sizeof(char *), VarWordCompareReverse); | | 1685 | qsort(av, ac, sizeof(char *), VarWordCompareReverse); |
1686 | break; | | 1686 | break; |
1687 | case 's': /* sort alphabetically */ | | 1687 | case 's': /* sort alphabetically */ |
1688 | qsort(av, ac, sizeof(char *), VarWordCompare); | | 1688 | qsort(av, ac, sizeof(char *), VarWordCompare); |
1689 | break; | | 1689 | break; |
1690 | case 'x': /* randomize */ | | 1690 | case 'x': /* randomize */ |
1691 | /* | | 1691 | /* |
1692 | * We will use [ac..2] range for mod factors. This will produce | | 1692 | * We will use [ac..2] range for mod factors. This will produce |
1693 | * random numbers in [(ac-1)..0] interval, and minimal | | 1693 | * random numbers in [(ac-1)..0] interval, and minimal |
1694 | * reasonable value for mod factor is 2 (the mod 1 will produce | | 1694 | * reasonable value for mod factor is 2 (the mod 1 will produce |
1695 | * 0 with probability 1). | | 1695 | * 0 with probability 1). |
1696 | */ | | 1696 | */ |
1697 | for (i = ac - 1; i > 0; i--) { | | 1697 | for (i = ac - 1; i > 0; i--) { |
1698 | int rndidx = random() % (i + 1); | | 1698 | int rndidx = random() % (i + 1); |
1699 | char *t = av[i]; | | 1699 | char *t = av[i]; |
1700 | av[i] = av[rndidx]; | | 1700 | av[i] = av[rndidx]; |
1701 | av[rndidx] = t; | | 1701 | av[rndidx] = t; |
1702 | } | | 1702 | } |
1703 | } | | 1703 | } |
1704 | } | | 1704 | } |
1705 | | | 1705 | |
1706 | for (i = 0; i < ac; i++) { | | 1706 | for (i = 0; i < ac; i++) { |
1707 | if (i != 0) | | 1707 | if (i != 0) |
1708 | Buf_AddByte(&buf, ' '); | | 1708 | Buf_AddByte(&buf, ' '); |
1709 | Buf_AddStr(&buf, av[i]); | | 1709 | Buf_AddStr(&buf, av[i]); |
1710 | } | | 1710 | } |
1711 | | | 1711 | |
1712 | free(as); | | 1712 | free(as); |
1713 | free(av); | | 1713 | free(av); |
1714 | | | 1714 | |
1715 | return Buf_Destroy(&buf, FALSE); | | 1715 | return Buf_Destroy(&buf, FALSE); |
1716 | } | | 1716 | } |
1717 | | | 1717 | |
1718 | | | 1718 | |
1719 | /* Remove adjacent duplicate words. */ | | 1719 | /* Remove adjacent duplicate words. */ |
1720 | static char * | | 1720 | static char * |
1721 | VarUniq(const char *str) | | 1721 | VarUniq(const char *str) |
1722 | { | | 1722 | { |
1723 | Buffer buf; /* Buffer for new string */ | | 1723 | Buffer buf; /* Buffer for new string */ |
1724 | char **av; /* List of words to affect */ | | 1724 | char **av; /* List of words to affect */ |
1725 | char *as; /* Word list memory */ | | 1725 | char *as; /* Word list memory */ |
1726 | int ac, i, j; | | 1726 | int ac, i, j; |
1727 | | | 1727 | |
1728 | Buf_Init(&buf, 0); | | 1728 | Buf_Init(&buf, 0); |
1729 | av = brk_string(str, &ac, FALSE, &as); | | 1729 | av = brk_string(str, &ac, FALSE, &as); |
1730 | | | 1730 | |
1731 | if (ac > 1) { | | 1731 | if (ac > 1) { |
1732 | for (j = 0, i = 1; i < ac; i++) | | 1732 | for (j = 0, i = 1; i < ac; i++) |
1733 | if (strcmp(av[i], av[j]) != 0 && (++j != i)) | | 1733 | if (strcmp(av[i], av[j]) != 0 && (++j != i)) |
1734 | av[j] = av[i]; | | 1734 | av[j] = av[i]; |
1735 | ac = j + 1; | | 1735 | ac = j + 1; |
1736 | } | | 1736 | } |
1737 | | | 1737 | |
1738 | for (i = 0; i < ac; i++) { | | 1738 | for (i = 0; i < ac; i++) { |
1739 | if (i != 0) | | 1739 | if (i != 0) |
1740 | Buf_AddByte(&buf, ' '); | | 1740 | Buf_AddByte(&buf, ' '); |
1741 | Buf_AddStr(&buf, av[i]); | | 1741 | Buf_AddStr(&buf, av[i]); |
1742 | } | | 1742 | } |
1743 | | | 1743 | |
1744 | free(as); | | 1744 | free(as); |
1745 | free(av); | | 1745 | free(av); |
1746 | | | 1746 | |
1747 | return Buf_Destroy(&buf, FALSE); | | 1747 | return Buf_Destroy(&buf, FALSE); |
1748 | } | | 1748 | } |
1749 | | | 1749 | |
1750 | /*- | | 1750 | /*- |
1751 | *----------------------------------------------------------------------- | | 1751 | *----------------------------------------------------------------------- |
1752 | * VarRange -- | | 1752 | * VarRange -- |
1753 | * Return an integer sequence | | 1753 | * Return an integer sequence |
1754 | * | | 1754 | * |
1755 | * Input: | | 1755 | * Input: |
1756 | * str String whose words provide default range | | 1756 | * str String whose words provide default range |
1757 | * ac range length, if 0 use str words | | 1757 | * ac range length, if 0 use str words |
1758 | * | | 1758 | * |
1759 | * Side Effects: | | 1759 | * Side Effects: |
1760 | * None. | | 1760 | * None. |
1761 | * | | 1761 | * |
1762 | *----------------------------------------------------------------------- | | 1762 | *----------------------------------------------------------------------- |
1763 | */ | | 1763 | */ |
1764 | static char * | | 1764 | static char * |
1765 | VarRange(const char *str, int ac) | | 1765 | VarRange(const char *str, int ac) |
1766 | { | | 1766 | { |
1767 | Buffer buf; /* Buffer for new string */ | | 1767 | Buffer buf; /* Buffer for new string */ |
1768 | char **av; /* List of words to affect */ | | 1768 | char **av; /* List of words to affect */ |
1769 | char *as; /* Word list memory */ | | 1769 | char *as; /* Word list memory */ |
1770 | int i; | | 1770 | int i; |
1771 | | | 1771 | |
1772 | Buf_Init(&buf, 0); | | 1772 | Buf_Init(&buf, 0); |
1773 | if (ac > 0) { | | 1773 | if (ac > 0) { |
1774 | as = NULL; | | 1774 | as = NULL; |
1775 | av = NULL; | | 1775 | av = NULL; |
1776 | } else { | | 1776 | } else { |
1777 | av = brk_string(str, &ac, FALSE, &as); | | 1777 | av = brk_string(str, &ac, FALSE, &as); |
1778 | } | | 1778 | } |
1779 | for (i = 0; i < ac; i++) { | | 1779 | for (i = 0; i < ac; i++) { |
1780 | if (i != 0) | | 1780 | if (i != 0) |
1781 | Buf_AddByte(&buf, ' '); | | 1781 | Buf_AddByte(&buf, ' '); |
1782 | Buf_AddInt(&buf, 1 + i); | | 1782 | Buf_AddInt(&buf, 1 + i); |
1783 | } | | 1783 | } |
1784 | | | 1784 | |
1785 | free(as); | | 1785 | free(as); |
1786 | free(av); | | 1786 | free(av); |
1787 | | | 1787 | |
1788 | return Buf_Destroy(&buf, FALSE); | | 1788 | return Buf_Destroy(&buf, FALSE); |
1789 | } | | 1789 | } |
1790 | | | 1790 | |
1791 | | | 1791 | |
1792 | /*- | | 1792 | /*- |
1793 | * Parse a text part of a modifier such as the "from" and "to" in :S/from/to/ | | 1793 | * Parse a text part of a modifier such as the "from" and "to" in :S/from/to/ |
1794 | * or the :@ modifier, until the next unescaped delimiter. The delimiter, as | | 1794 | * or the :@ modifier, until the next unescaped delimiter. The delimiter, as |
1795 | * well as the backslash or the dollar, can be escaped with a backslash. | | 1795 | * well as the backslash or the dollar, can be escaped with a backslash. |
1796 | * | | 1796 | * |
1797 | * Return the parsed (and possibly expanded) string, or NULL if no delimiter | | 1797 | * Return the parsed (and possibly expanded) string, or NULL if no delimiter |
1798 | * was found. | | 1798 | * was found. |
1799 | * | | 1799 | * |
1800 | * Nested variables in the text are expanded unless VARE_NOSUBST is set. | | 1800 | * Nested variables in the text are expanded unless VARE_NOSUBST is set. |
1801 | * | | 1801 | * |
1802 | * If out_length is specified, store the length of the returned string, just | | 1802 | * If out_length is specified, store the length of the returned string, just |
1803 | * to save another strlen call. | | 1803 | * to save another strlen call. |
1804 | * | | 1804 | * |
1805 | * If out_pflags is specified and the last character of the pattern is a $, | | 1805 | * If out_pflags is specified and the last character of the pattern is a $, |
1806 | * set the VARP_ANCHOR_END bit of mpflags (for the first part of the :S | | 1806 | * set the VARP_ANCHOR_END bit of mpflags (for the first part of the :S |
1807 | * modifier). | | 1807 | * modifier). |
1808 | * | | 1808 | * |
1809 | * If subst is specified, handle escaped ampersands and replace unescaped | | 1809 | * If subst is specified, handle escaped ampersands and replace unescaped |
1810 | * ampersands with the lhs of the pattern (for the second part of the :S | | 1810 | * ampersands with the lhs of the pattern (for the second part of the :S |
1811 | * modifier). | | 1811 | * modifier). |
1812 | */ | | 1812 | */ |
1813 | static char * | | 1813 | static char * |
1814 | ParseModifierPart(const char **tstr, int delim, VarEvalFlags eflags, | | 1814 | ParseModifierPart(const char **tstr, int delim, VarEvalFlags eflags, |
1815 | GNode *ctxt, size_t *out_length, | | 1815 | GNode *ctxt, size_t *out_length, |
1816 | VarPatternFlags *out_pflags, ModifyWord_SubstArgs *subst) | | 1816 | VarPatternFlags *out_pflags, ModifyWord_SubstArgs *subst) |
1817 | { | | 1817 | { |
1818 | const char *cp; | | 1818 | const char *cp; |
1819 | char *rstr; | | 1819 | char *rstr; |
1820 | Buffer buf; | | 1820 | Buffer buf; |
1821 | VarEvalFlags errnum = eflags & VARE_UNDEFERR; | | 1821 | VarEvalFlags errnum = eflags & VARE_UNDEFERR; |
1822 | | | 1822 | |
1823 | Buf_Init(&buf, 0); | | 1823 | Buf_Init(&buf, 0); |
1824 | | | 1824 | |
1825 | /* | | 1825 | /* |
1826 | * Skim through until the matching delimiter is found; | | 1826 | * Skim through until the matching delimiter is found; |
1827 | * pick up variable substitutions on the way. Also allow | | 1827 | * pick up variable substitutions on the way. Also allow |
1828 | * backslashes to quote the delimiter, $, and \, but don't | | 1828 | * backslashes to quote the delimiter, $, and \, but don't |
1829 | * touch other backslashes. | | 1829 | * touch other backslashes. |
1830 | */ | | 1830 | */ |
1831 | for (cp = *tstr; *cp != '\0' && *cp != delim; cp++) { | | 1831 | for (cp = *tstr; *cp != '\0' && *cp != delim; cp++) { |
1832 | Boolean is_escaped = cp[0] == '\\' && ( | | 1832 | Boolean is_escaped = cp[0] == '\\' && ( |
1833 | cp[1] == delim || cp[1] == '\\' || cp[1] == '$' || | | 1833 | cp[1] == delim || cp[1] == '\\' || cp[1] == '$' || |
1834 | (cp[1] == '&' && subst != NULL)); | | 1834 | (cp[1] == '&' && subst != NULL)); |
1835 | if (is_escaped) { | | 1835 | if (is_escaped) { |
1836 | Buf_AddByte(&buf, cp[1]); | | 1836 | Buf_AddByte(&buf, cp[1]); |
1837 | cp++; | | 1837 | cp++; |
1838 | } else if (*cp == '$') { | | 1838 | } else if (*cp == '$') { |
1839 | if (cp[1] == delim) { /* Unescaped $ at end of pattern */ | | 1839 | if (cp[1] == delim) { /* Unescaped $ at end of pattern */ |
1840 | if (out_pflags != NULL) | | 1840 | if (out_pflags != NULL) |
1841 | *out_pflags |= VARP_ANCHOR_END; | | 1841 | *out_pflags |= VARP_ANCHOR_END; |
1842 | else | | 1842 | else |
1843 | Buf_AddByte(&buf, *cp); | | 1843 | Buf_AddByte(&buf, *cp); |
1844 | } else { | | 1844 | } else { |
1845 | if (eflags & VARE_WANTRES) { | | 1845 | if (eflags & VARE_WANTRES) { |
1846 | const char *cp2; | | 1846 | const char *cp2; |
1847 | int len; | | 1847 | int len; |
1848 | void *freeIt; | | 1848 | void *freeIt; |
1849 | | | 1849 | |
1850 | /* | | 1850 | /* |
1851 | * If unescaped dollar sign not before the | | 1851 | * If unescaped dollar sign not before the |
1852 | * delimiter, assume it's a variable | | 1852 | * delimiter, assume it's a variable |
1853 | * substitution and recurse. | | 1853 | * substitution and recurse. |
1854 | */ | | 1854 | */ |
1855 | cp2 = Var_Parse(cp, ctxt, errnum | (eflags & VARE_WANTRES), | | 1855 | cp2 = Var_Parse(cp, ctxt, errnum | (eflags & VARE_WANTRES), |
1856 | &len, &freeIt); | | 1856 | &len, &freeIt); |
1857 | Buf_AddStr(&buf, cp2); | | 1857 | Buf_AddStr(&buf, cp2); |
1858 | free(freeIt); | | 1858 | free(freeIt); |
1859 | cp += len - 1; | | 1859 | cp += len - 1; |
1860 | } else { | | 1860 | } else { |
1861 | const char *cp2 = &cp[1]; | | 1861 | const char *cp2 = &cp[1]; |
1862 | | | 1862 | |
1863 | if (*cp2 == PROPEN || *cp2 == BROPEN) { | | 1863 | if (*cp2 == PROPEN || *cp2 == BROPEN) { |
1864 | /* | | 1864 | /* |
1865 | * Find the end of this variable reference | | 1865 | * Find the end of this variable reference |
1866 | * and suck it in without further ado. | | 1866 | * and suck it in without further ado. |
1867 | * It will be interpreted later. | | 1867 | * It will be interpreted later. |
1868 | */ | | 1868 | */ |
1869 | int have = *cp2; | | 1869 | int have = *cp2; |
1870 | int want = (*cp2 == PROPEN) ? PRCLOSE : BRCLOSE; | | 1870 | int want = (*cp2 == PROPEN) ? PRCLOSE : BRCLOSE; |
1871 | int depth = 1; | | 1871 | int depth = 1; |
1872 | | | 1872 | |
1873 | for (++cp2; *cp2 != '\0' && depth > 0; ++cp2) { | | 1873 | for (++cp2; *cp2 != '\0' && depth > 0; ++cp2) { |
1874 | if (cp2[-1] != '\\') { | | 1874 | if (cp2[-1] != '\\') { |
1875 | if (*cp2 == have) | | 1875 | if (*cp2 == have) |
1876 | ++depth; | | 1876 | ++depth; |
1877 | if (*cp2 == want) | | 1877 | if (*cp2 == want) |
1878 | --depth; | | 1878 | --depth; |
1879 | } | | 1879 | } |
1880 | } | | 1880 | } |
1881 | Buf_AddBytesBetween(&buf, cp, cp2); | | 1881 | Buf_AddBytesBetween(&buf, cp, cp2); |
1882 | cp = --cp2; | | 1882 | cp = --cp2; |
1883 | } else | | 1883 | } else |
1884 | Buf_AddByte(&buf, *cp); | | 1884 | Buf_AddByte(&buf, *cp); |
1885 | } | | 1885 | } |
1886 | } | | 1886 | } |
1887 | } else if (subst != NULL && *cp == '&') | | 1887 | } else if (subst != NULL && *cp == '&') |
1888 | Buf_AddBytes(&buf, subst->lhsLen, subst->lhs); | | 1888 | Buf_AddBytes(&buf, subst->lhsLen, subst->lhs); |
1889 | else | | 1889 | else |
1890 | Buf_AddByte(&buf, *cp); | | 1890 | Buf_AddByte(&buf, *cp); |
1891 | } | | 1891 | } |
1892 | | | 1892 | |
1893 | if (*cp != delim) { | | 1893 | if (*cp != delim) { |
1894 | *tstr = cp; | | 1894 | *tstr = cp; |
1895 | return NULL; | | 1895 | return NULL; |
1896 | } | | 1896 | } |
1897 | | | 1897 | |
1898 | *tstr = ++cp; | | 1898 | *tstr = ++cp; |
1899 | if (out_length != NULL) | | 1899 | if (out_length != NULL) |
1900 | *out_length = Buf_Size(&buf); | | 1900 | *out_length = Buf_Size(&buf); |
1901 | rstr = Buf_Destroy(&buf, FALSE); | | 1901 | rstr = Buf_Destroy(&buf, FALSE); |
1902 | if (DEBUG(VAR)) | | 1902 | if (DEBUG(VAR)) |
1903 | fprintf(debug_file, "Modifier part: \"%s\"\n", rstr); | | 1903 | fprintf(debug_file, "Modifier part: \"%s\"\n", rstr); |
1904 | return rstr; | | 1904 | return rstr; |
1905 | } | | 1905 | } |
1906 | | | 1906 | |
1907 | /*- | | 1907 | /*- |
1908 | *----------------------------------------------------------------------- | | 1908 | *----------------------------------------------------------------------- |
1909 | * VarQuote -- | | 1909 | * VarQuote -- |
1910 | * Quote shell meta-characters and space characters in the string | | 1910 | * Quote shell meta-characters and space characters in the string |
1911 | * if quoteDollar is set, also quote and double any '$' characters. | | 1911 | * if quoteDollar is set, also quote and double any '$' characters. |
1912 | * | | 1912 | * |
1913 | * Results: | | 1913 | * Results: |
1914 | * The quoted string | | 1914 | * The quoted string |
1915 | * | | 1915 | * |
1916 | * Side Effects: | | 1916 | * Side Effects: |
1917 | * None. | | 1917 | * None. |
1918 | * | | 1918 | * |
1919 | *----------------------------------------------------------------------- | | 1919 | *----------------------------------------------------------------------- |
1920 | */ | | 1920 | */ |
1921 | static char * | | 1921 | static char * |
1922 | VarQuote(char *str, Boolean quoteDollar) | | 1922 | VarQuote(char *str, Boolean quoteDollar) |
1923 | { | | 1923 | { |
1924 | Buffer buf; | | 1924 | Buffer buf; |
1925 | Buf_Init(&buf, 0); | | 1925 | Buf_Init(&buf, 0); |
1926 | | | 1926 | |
1927 | for (; *str != '\0'; str++) { | | 1927 | for (; *str != '\0'; str++) { |
1928 | if (*str == '\n') { | | 1928 | if (*str == '\n') { |
1929 | const char *newline = Shell_GetNewline(); | | 1929 | const char *newline = Shell_GetNewline(); |
1930 | if (newline == NULL) | | 1930 | if (newline == NULL) |
1931 | newline = "\\\n"; | | 1931 | newline = "\\\n"; |
1932 | Buf_AddStr(&buf, newline); | | 1932 | Buf_AddStr(&buf, newline); |
1933 | continue; | | 1933 | continue; |
1934 | } | | 1934 | } |
1935 | if (isspace((unsigned char)*str) || ismeta((unsigned char)*str)) | | 1935 | if (isspace((unsigned char)*str) || ismeta((unsigned char)*str)) |
1936 | Buf_AddByte(&buf, '\\'); | | 1936 | Buf_AddByte(&buf, '\\'); |
1937 | Buf_AddByte(&buf, *str); | | 1937 | Buf_AddByte(&buf, *str); |
1938 | if (quoteDollar && *str == '$') | | 1938 | if (quoteDollar && *str == '$') |
1939 | Buf_AddStr(&buf, "\\$"); | | 1939 | Buf_AddStr(&buf, "\\$"); |
1940 | } | | 1940 | } |
1941 | | | 1941 | |
1942 | str = Buf_Destroy(&buf, FALSE); | | 1942 | str = Buf_Destroy(&buf, FALSE); |
1943 | if (DEBUG(VAR)) | | 1943 | if (DEBUG(VAR)) |
1944 | fprintf(debug_file, "QuoteMeta: [%s]\n", str); | | 1944 | fprintf(debug_file, "QuoteMeta: [%s]\n", str); |
1945 | return str; | | 1945 | return str; |
1946 | } | | 1946 | } |
1947 | | | 1947 | |
1948 | /*- | | 1948 | /*- |
1949 | *----------------------------------------------------------------------- | | 1949 | *----------------------------------------------------------------------- |
1950 | * VarHash -- | | 1950 | * VarHash -- |
1951 | * Hash the string using the MurmurHash3 algorithm. | | 1951 | * Hash the string using the MurmurHash3 algorithm. |
1952 | * Output is computed using 32bit Little Endian arithmetic. | | 1952 | * Output is computed using 32bit Little Endian arithmetic. |
1953 | * | | 1953 | * |
1954 | * Input: | | 1954 | * Input: |
1955 | * str String to modify | | 1955 | * str String to modify |
1956 | * | | 1956 | * |
1957 | * Results: | | 1957 | * Results: |
1958 | * Hash value of str, encoded as 8 hex digits. | | 1958 | * Hash value of str, encoded as 8 hex digits. |
1959 | * | | 1959 | * |
1960 | * Side Effects: | | 1960 | * Side Effects: |
1961 | * None. | | 1961 | * None. |
1962 | * | | 1962 | * |
1963 | *----------------------------------------------------------------------- | | 1963 | *----------------------------------------------------------------------- |
1964 | */ | | 1964 | */ |
1965 | static char * | | 1965 | static char * |
1966 | VarHash(const char *str) | | 1966 | VarHash(const char *str) |
1967 | { | | 1967 | { |
1968 | static const char hexdigits[16] = "0123456789abcdef"; | | 1968 | static const char hexdigits[16] = "0123456789abcdef"; |
1969 | Buffer buf; | | 1969 | Buffer buf; |
1970 | size_t len, len2; | | 1970 | size_t len, len2; |
1971 | const unsigned char *ustr = (const unsigned char *)str; | | 1971 | const unsigned char *ustr = (const unsigned char *)str; |
1972 | uint32_t h, k, c1, c2; | | 1972 | uint32_t h, k, c1, c2; |
1973 | | | 1973 | |
1974 | h = 0x971e137bU; | | 1974 | h = 0x971e137bU; |
1975 | c1 = 0x95543787U; | | 1975 | c1 = 0x95543787U; |
1976 | c2 = 0x2ad7eb25U; | | 1976 | c2 = 0x2ad7eb25U; |
1977 | len2 = strlen(str); | | 1977 | len2 = strlen(str); |
1978 | | | 1978 | |
1979 | for (len = len2; len; ) { | | 1979 | for (len = len2; len; ) { |
1980 | k = 0; | | 1980 | k = 0; |
1981 | switch (len) { | | 1981 | switch (len) { |
1982 | default: | | 1982 | default: |
1983 | k = ((uint32_t)ustr[3] << 24) | | | 1983 | k = ((uint32_t)ustr[3] << 24) | |
1984 | ((uint32_t)ustr[2] << 16) | | | 1984 | ((uint32_t)ustr[2] << 16) | |
1985 | ((uint32_t)ustr[1] << 8) | | | 1985 | ((uint32_t)ustr[1] << 8) | |
1986 | (uint32_t)ustr[0]; | | 1986 | (uint32_t)ustr[0]; |
1987 | len -= 4; | | 1987 | len -= 4; |
1988 | ustr += 4; | | 1988 | ustr += 4; |
1989 | break; | | 1989 | break; |
1990 | case 3: | | 1990 | case 3: |
1991 | k |= (uint32_t)ustr[2] << 16; | | 1991 | k |= (uint32_t)ustr[2] << 16; |
1992 | /* FALLTHROUGH */ | | 1992 | /* FALLTHROUGH */ |
1993 | case 2: | | 1993 | case 2: |
1994 | k |= (uint32_t)ustr[1] << 8; | | 1994 | k |= (uint32_t)ustr[1] << 8; |
1995 | /* FALLTHROUGH */ | | 1995 | /* FALLTHROUGH */ |
1996 | case 1: | | 1996 | case 1: |
1997 | k |= (uint32_t)ustr[0]; | | 1997 | k |= (uint32_t)ustr[0]; |
1998 | len = 0; | | 1998 | len = 0; |
1999 | } | | 1999 | } |
2000 | c1 = c1 * 5 + 0x7b7d159cU; | | 2000 | c1 = c1 * 5 + 0x7b7d159cU; |
2001 | c2 = c2 * 5 + 0x6bce6396U; | | 2001 | c2 = c2 * 5 + 0x6bce6396U; |
2002 | k *= c1; | | 2002 | k *= c1; |
2003 | k = (k << 11) ^ (k >> 21); | | 2003 | k = (k << 11) ^ (k >> 21); |
2004 | k *= c2; | | 2004 | k *= c2; |
2005 | h = (h << 13) ^ (h >> 19); | | 2005 | h = (h << 13) ^ (h >> 19); |
2006 | h = h * 5 + 0x52dce729U; | | 2006 | h = h * 5 + 0x52dce729U; |
2007 | h ^= k; | | 2007 | h ^= k; |
2008 | } | | 2008 | } |
2009 | h ^= len2; | | 2009 | h ^= len2; |
2010 | h *= 0x85ebca6b; | | 2010 | h *= 0x85ebca6b; |
2011 | h ^= h >> 13; | | 2011 | h ^= h >> 13; |
2012 | h *= 0xc2b2ae35; | | 2012 | h *= 0xc2b2ae35; |
2013 | h ^= h >> 16; | | 2013 | h ^= h >> 16; |
2014 | | | 2014 | |
2015 | Buf_Init(&buf, 0); | | 2015 | Buf_Init(&buf, 0); |
2016 | for (len = 0; len < 8; ++len) { | | 2016 | for (len = 0; len < 8; ++len) { |
2017 | Buf_AddByte(&buf, hexdigits[h & 15]); | | 2017 | Buf_AddByte(&buf, hexdigits[h & 15]); |
2018 | h >>= 4; | | 2018 | h >>= 4; |
2019 | } | | 2019 | } |
2020 | | | 2020 | |
2021 | return Buf_Destroy(&buf, FALSE); | | 2021 | return Buf_Destroy(&buf, FALSE); |
2022 | } | | 2022 | } |
2023 | | | 2023 | |
2024 | static char * | | 2024 | static char * |
2025 | VarStrftime(const char *fmt, int zulu, time_t utc) | | 2025 | VarStrftime(const char *fmt, int zulu, time_t utc) |
2026 | { | | 2026 | { |
2027 | char buf[BUFSIZ]; | | 2027 | char buf[BUFSIZ]; |
2028 | | | 2028 | |
2029 | if (!utc) | | 2029 | if (!utc) |
2030 | time(&utc); | | 2030 | time(&utc); |
2031 | if (!*fmt) | | 2031 | if (!*fmt) |
2032 | fmt = "%c"; | | 2032 | fmt = "%c"; |
2033 | strftime(buf, sizeof(buf), fmt, zulu ? gmtime(&utc) : localtime(&utc)); | | 2033 | strftime(buf, sizeof(buf), fmt, zulu ? gmtime(&utc) : localtime(&utc)); |
2034 | | | 2034 | |
2035 | buf[sizeof(buf) - 1] = '\0'; | | 2035 | buf[sizeof(buf) - 1] = '\0'; |
2036 | return bmake_strdup(buf); | | 2036 | return bmake_strdup(buf); |
2037 | } | | 2037 | } |
2038 | | | 2038 | |
2039 | /* The ApplyModifier functions all work in the same way. | | 2039 | /* The ApplyModifier functions all work in the same way. |
2040 | * They parse the modifier (often until the next colon) and store the | | 2040 | * They parse the modifier (often until the next colon) and store the |
2041 | * updated position for the parser into st->next. | | 2041 | * updated position for the parser into st->next. |
2042 | * They take the st->val and generate st->newVal from it. | | 2042 | * They take the st->val and generate st->newVal from it. |
2043 | * On failure, many of them update st->missing_delim. | | 2043 | * On failure, many of them update st->missing_delim. |
2044 | */ | | 2044 | */ |
2045 | typedef struct { | | 2045 | typedef struct { |
2046 | int startc; /* '\0' or '{' or '(' */ | | 2046 | int startc; /* '\0' or '{' or '(' */ |
2047 | int endc; | | 2047 | int endc; |
2048 | Var *v; | | 2048 | Var *v; |
2049 | GNode *ctxt; | | 2049 | GNode *ctxt; |
2050 | VarEvalFlags eflags; | | 2050 | VarEvalFlags eflags; |
2051 | | | 2051 | |
2052 | char *val; /* The value of the expression before the | | 2052 | char *val; /* The value of the expression before the |
2053 | * modifier is applied */ | | 2053 | * modifier is applied */ |
2054 | char *newVal; /* The new value after applying the modifier | | 2054 | char *newVal; /* The new value after applying the modifier |
2055 | * to the expression */ | | 2055 | * to the expression */ |
2056 | const char *next; /* The position where parsing continues | | 2056 | const char *next; /* The position where parsing continues |
2057 | * after the current modifier. */ | | 2057 | * after the current modifier. */ |
2058 | char missing_delim; /* For error reporting */ | | 2058 | char missing_delim; /* For error reporting */ |
2059 | | | 2059 | |
2060 | Byte sep; /* Word separator in expansions */ | | 2060 | Byte sep; /* Word separator in expansions */ |
2061 | Boolean oneBigWord; /* TRUE if we will treat the variable as a | | 2061 | Boolean oneBigWord; /* TRUE if we will treat the variable as a |
2062 | * single big word, even if it contains | | 2062 | * single big word, even if it contains |
2063 | * embedded spaces (as opposed to the | | 2063 | * embedded spaces (as opposed to the |
2064 | * usual behaviour of treating it as | | 2064 | * usual behaviour of treating it as |
2065 | * several space-separated words). */ | | 2065 | * several space-separated words). */ |
2066 | | | 2066 | |
2067 | } ApplyModifiersState; | | 2067 | } ApplyModifiersState; |
2068 | | | 2068 | |
2069 | /* we now have some modifiers with long names */ | | 2069 | /* we now have some modifiers with long names */ |
2070 | static Boolean | | 2070 | static Boolean |
2071 | ModMatch(const char *mod, const char *modname, char endc) | | 2071 | ModMatch(const char *mod, const char *modname, char endc) |
2072 | { | | 2072 | { |
2073 | size_t n = strlen(modname); | | 2073 | size_t n = strlen(modname); |
2074 | return strncmp(mod, modname, n) == 0 && | | 2074 | return strncmp(mod, modname, n) == 0 && |
2075 | (mod[n] == endc || mod[n] == ':'); | | 2075 | (mod[n] == endc || mod[n] == ':'); |
2076 | } | | 2076 | } |
2077 | | | 2077 | |
2078 | static inline Boolean | | 2078 | static inline Boolean |
2079 | ModMatchEq(const char *mod, const char *modname, char endc) | | 2079 | ModMatchEq(const char *mod, const char *modname, char endc) |
2080 | { | | 2080 | { |
2081 | size_t n = strlen(modname); | | 2081 | size_t n = strlen(modname); |
2082 | return strncmp(mod, modname, n) == 0 && | | 2082 | return strncmp(mod, modname, n) == 0 && |
2083 | (mod[n] == endc || mod[n] == ':' || mod[n] == '='); | | 2083 | (mod[n] == endc || mod[n] == ':' || mod[n] == '='); |
2084 | } | | 2084 | } |
2085 | | | 2085 | |
2086 | /* :@var@...${var}...@ */ | | 2086 | /* :@var@...${var}...@ */ |
2087 | static Boolean | | 2087 | static Boolean |
2088 | ApplyModifier_Loop(const char *mod, ApplyModifiersState *st) { | | 2088 | ApplyModifier_Loop(const char *mod, ApplyModifiersState *st) { |
2089 | ModifyWord_LoopArgs args; | | 2089 | ModifyWord_LoopArgs args; |
2090 | | | 2090 | |
2091 | args.ctx = st->ctxt; | | 2091 | args.ctx = st->ctxt; |
2092 | st->next = mod + 1; | | 2092 | st->next = mod + 1; |
2093 | char delim = '@'; | | 2093 | char delim = '@'; |
2094 | args.tvar = ParseModifierPart(&st->next, delim, st->eflags & ~VARE_WANTRES, | | 2094 | args.tvar = ParseModifierPart(&st->next, delim, st->eflags & ~VARE_WANTRES, |
2095 | st->ctxt, NULL, NULL, NULL); | | 2095 | st->ctxt, NULL, NULL, NULL); |
2096 | if (args.tvar == NULL) { | | 2096 | if (args.tvar == NULL) { |
2097 | st->missing_delim = delim; | | 2097 | st->missing_delim = delim; |
2098 | return FALSE; | | 2098 | return FALSE; |
2099 | } | | 2099 | } |
2100 | | | 2100 | |
2101 | args.str = ParseModifierPart(&st->next, delim, st->eflags & ~VARE_WANTRES, | | 2101 | args.str = ParseModifierPart(&st->next, delim, st->eflags & ~VARE_WANTRES, |
2102 | st->ctxt, NULL, NULL, NULL); | | 2102 | st->ctxt, NULL, NULL, NULL); |
2103 | if (args.str == NULL) { | | 2103 | if (args.str == NULL) { |
2104 | st->missing_delim = delim; | | 2104 | st->missing_delim = delim; |
2105 | return FALSE; | | 2105 | return FALSE; |
2106 | } | | 2106 | } |
2107 | | | 2107 | |
2108 | args.eflags = st->eflags & (VARE_UNDEFERR | VARE_WANTRES); | | 2108 | args.eflags = st->eflags & (VARE_UNDEFERR | VARE_WANTRES); |
2109 | int prev_sep = st->sep; | | 2109 | int prev_sep = st->sep; |
2110 | st->sep = ' '; /* XXX: this is inconsistent */ | | 2110 | st->sep = ' '; /* XXX: this is inconsistent */ |
2111 | st->newVal = ModifyWords(st->ctxt, st->sep, st->oneBigWord, st->val, | | 2111 | st->newVal = ModifyWords(st->ctxt, st->sep, st->oneBigWord, st->val, |
2112 | ModifyWord_Loop, &args); | | 2112 | ModifyWord_Loop, &args); |
2113 | st->sep = prev_sep; | | 2113 | st->sep = prev_sep; |
2114 | Var_Delete(args.tvar, st->ctxt); | | 2114 | Var_Delete(args.tvar, st->ctxt); |
2115 | free(args.tvar); | | 2115 | free(args.tvar); |
2116 | free(args.str); | | 2116 | free(args.str); |
2117 | return TRUE; | | 2117 | return TRUE; |
2118 | } | | 2118 | } |
2119 | | | 2119 | |
2120 | /* :Ddefined or :Uundefined */ | | 2120 | /* :Ddefined or :Uundefined */ |
2121 | static void | | 2121 | static void |
2122 | ApplyModifier_Defined(const char *mod, ApplyModifiersState *st) | | 2122 | ApplyModifier_Defined(const char *mod, ApplyModifiersState *st) |
2123 | { | | 2123 | { |
2124 | Buffer buf; /* Buffer for patterns */ | | 2124 | Buffer buf; /* Buffer for patterns */ |
2125 | VarEvalFlags neflags; | | 2125 | VarEvalFlags neflags; |
2126 | | | 2126 | |
2127 | if (st->eflags & VARE_WANTRES) { | | 2127 | if (st->eflags & VARE_WANTRES) { |
2128 | Boolean wantres; | | 2128 | Boolean wantres; |
2129 | if (*mod == 'U') | | 2129 | if (*mod == 'U') |
2130 | wantres = ((st->v->flags & VAR_JUNK) != 0); | | 2130 | wantres = ((st->v->flags & VAR_JUNK) != 0); |
2131 | else | | 2131 | else |
2132 | wantres = ((st->v->flags & VAR_JUNK) == 0); | | 2132 | wantres = ((st->v->flags & VAR_JUNK) == 0); |
2133 | neflags = st->eflags & ~VARE_WANTRES; | | 2133 | neflags = st->eflags & ~VARE_WANTRES; |
2134 | if (wantres) | | 2134 | if (wantres) |
2135 | neflags |= VARE_WANTRES; | | 2135 | neflags |= VARE_WANTRES; |
2136 | } else | | 2136 | } else |
2137 | neflags = st->eflags; | | 2137 | neflags = st->eflags; |
2138 | | | 2138 | |
2139 | /* | | 2139 | /* |
2140 | * Pass through mod looking for 1) escaped delimiters, | | 2140 | * Pass through mod looking for 1) escaped delimiters, |
2141 | * '$'s and backslashes (place the escaped character in | | 2141 | * '$'s and backslashes (place the escaped character in |
2142 | * uninterpreted) and 2) unescaped $'s that aren't before | | 2142 | * uninterpreted) and 2) unescaped $'s that aren't before |
2143 | * the delimiter (expand the variable substitution). | | 2143 | * the delimiter (expand the variable substitution). |
2144 | * The result is left in the Buffer buf. | | 2144 | * The result is left in the Buffer buf. |
2145 | */ | | 2145 | */ |
2146 | Buf_Init(&buf, 0); | | 2146 | Buf_Init(&buf, 0); |
2147 | const char *p = mod + 1; | | 2147 | const char *p = mod + 1; |
2148 | while (*p != st->endc && *p != ':' && *p != '\0') { | | 2148 | while (*p != st->endc && *p != ':' && *p != '\0') { |
2149 | if (*p == '\\' && | | 2149 | if (*p == '\\' && |
2150 | (p[1] == ':' || p[1] == '$' || p[1] == st->endc || p[1] == '\\')) { | | 2150 | (p[1] == ':' || p[1] == '$' || p[1] == st->endc || p[1] == '\\')) { |
2151 | Buf_AddByte(&buf, p[1]); | | 2151 | Buf_AddByte(&buf, p[1]); |
2152 | p += 2; | | 2152 | p += 2; |
2153 | } else if (*p == '$') { | | 2153 | } else if (*p == '$') { |
2154 | /* | | 2154 | /* |
2155 | * If unescaped dollar sign, assume it's a | | 2155 | * If unescaped dollar sign, assume it's a |
2156 | * variable substitution and recurse. | | 2156 | * variable substitution and recurse. |
2157 | */ | | 2157 | */ |
2158 | const char *cp2; | | 2158 | const char *cp2; |
2159 | int len; | | 2159 | int len; |
2160 | void *freeIt; | | 2160 | void *freeIt; |
2161 | | | 2161 | |
2162 | cp2 = Var_Parse(p, st->ctxt, neflags, &len, &freeIt); | | 2162 | cp2 = Var_Parse(p, st->ctxt, neflags, &len, &freeIt); |
2163 | Buf_AddStr(&buf, cp2); | | 2163 | Buf_AddStr(&buf, cp2); |
2164 | free(freeIt); | | 2164 | free(freeIt); |
2165 | p += len; | | 2165 | p += len; |
2166 | } else { | | 2166 | } else { |
2167 | Buf_AddByte(&buf, *p); | | 2167 | Buf_AddByte(&buf, *p); |
2168 | p++; | | 2168 | p++; |
2169 | } | | 2169 | } |
2170 | } | | 2170 | } |
2171 | | | 2171 | |
2172 | st->next = p; | | 2172 | st->next = p; |
2173 | | | 2173 | |
2174 | if (st->v->flags & VAR_JUNK) | | 2174 | if (st->v->flags & VAR_JUNK) |
2175 | st->v->flags |= VAR_KEEP; | | 2175 | st->v->flags |= VAR_KEEP; |
2176 | if (neflags & VARE_WANTRES) { | | 2176 | if (neflags & VARE_WANTRES) { |
2177 | st->newVal = Buf_Destroy(&buf, FALSE); | | 2177 | st->newVal = Buf_Destroy(&buf, FALSE); |
2178 | } else { | | 2178 | } else { |
2179 | st->newVal = st->val; | | 2179 | st->newVal = st->val; |
2180 | Buf_Destroy(&buf, TRUE); | | 2180 | Buf_Destroy(&buf, TRUE); |
2181 | } | | 2181 | } |
2182 | } | | 2182 | } |
2183 | | | 2183 | |
2184 | /* :gmtime */ | | 2184 | /* :gmtime */ |
2185 | static Boolean | | 2185 | static Boolean |
2186 | ApplyModifier_Gmtime(const char *mod, ApplyModifiersState *st) | | 2186 | ApplyModifier_Gmtime(const char *mod, ApplyModifiersState *st) |
2187 | { | | 2187 | { |
2188 | if (!ModMatchEq(mod, "gmtime", st->endc)) { | | 2188 | if (!ModMatchEq(mod, "gmtime", st->endc)) { |
2189 | st->next = mod + 1; | | 2189 | st->next = mod + 1; |
2190 | return FALSE; | | 2190 | return FALSE; |
2191 | } | | 2191 | } |
2192 | | | 2192 | |
2193 | time_t utc; | | 2193 | time_t utc; |
2194 | if (mod[6] == '=') { | | 2194 | if (mod[6] == '=') { |
2195 | char *ep; | | 2195 | char *ep; |
2196 | utc = strtoul(mod + 7, &ep, 10); | | 2196 | utc = strtoul(mod + 7, &ep, 10); |
2197 | st->next = ep; | | 2197 | st->next = ep; |
2198 | } else { | | 2198 | } else { |
2199 | utc = 0; | | 2199 | utc = 0; |
2200 | st->next = mod + 6; | | 2200 | st->next = mod + 6; |
2201 | } | | 2201 | } |
2202 | st->newVal = VarStrftime(st->val, 1, utc); | | 2202 | st->newVal = VarStrftime(st->val, 1, utc); |
2203 | return TRUE; | | 2203 | return TRUE; |
2204 | } | | 2204 | } |
2205 | | | 2205 | |
2206 | /* :localtime */ | | 2206 | /* :localtime */ |
2207 | static Boolean | | 2207 | static Boolean |
2208 | ApplyModifier_Localtime(const char *mod, ApplyModifiersState *st) | | 2208 | ApplyModifier_Localtime(const char *mod, ApplyModifiersState *st) |
2209 | { | | 2209 | { |
2210 | if (!ModMatchEq(mod, "localtime", st->endc)) { | | 2210 | if (!ModMatchEq(mod, "localtime", st->endc)) { |
2211 | st->next = mod + 1; | | 2211 | st->next = mod + 1; |
2212 | return FALSE; | | 2212 | return FALSE; |
2213 | } | | 2213 | } |
2214 | | | 2214 | |
2215 | time_t utc; | | 2215 | time_t utc; |
2216 | if (mod[9] == '=') { | | 2216 | if (mod[9] == '=') { |
2217 | char *ep; | | 2217 | char *ep; |
2218 | utc = strtoul(mod + 10, &ep, 10); | | 2218 | utc = strtoul(mod + 10, &ep, 10); |
2219 | st->next = ep; | | 2219 | st->next = ep; |
2220 | } else { | | 2220 | } else { |
2221 | utc = 0; | | 2221 | utc = 0; |
2222 | st->next = mod + 9; | | 2222 | st->next = mod + 9; |
2223 | } | | 2223 | } |
2224 | st->newVal = VarStrftime(st->val, 0, utc); | | 2224 | st->newVal = VarStrftime(st->val, 0, utc); |
2225 | return TRUE; | | 2225 | return TRUE; |
2226 | } | | 2226 | } |
2227 | | | 2227 | |
2228 | /* :hash */ | | 2228 | /* :hash */ |
2229 | static Boolean | | 2229 | static Boolean |
2230 | ApplyModifier_Hash(const char *mod, ApplyModifiersState *st) | | 2230 | ApplyModifier_Hash(const char *mod, ApplyModifiersState *st) |
2231 | { | | 2231 | { |
2232 | if (!ModMatch(mod, "hash", st->endc)) { | | 2232 | if (!ModMatch(mod, "hash", st->endc)) { |
2233 | st->next = mod + 1; | | 2233 | st->next = mod + 1; |
2234 | return FALSE; | | 2234 | return FALSE; |
2235 | } | | 2235 | } |
2236 | | | 2236 | |
2237 | st->newVal = VarHash(st->val); | | 2237 | st->newVal = VarHash(st->val); |
2238 | st->next = mod + 4; | | 2238 | st->next = mod + 4; |
2239 | return TRUE; | | 2239 | return TRUE; |
2240 | } | | 2240 | } |
2241 | | | 2241 | |
2242 | /* :P */ | | 2242 | /* :P */ |
2243 | static void | | 2243 | static void |
2244 | ApplyModifier_Path(const char *mod, ApplyModifiersState *st) | | 2244 | ApplyModifier_Path(const char *mod, ApplyModifiersState *st) |
2245 | { | | 2245 | { |
2246 | if (st->v->flags & VAR_JUNK) | | 2246 | if (st->v->flags & VAR_JUNK) |
2247 | st->v->flags |= VAR_KEEP; | | 2247 | st->v->flags |= VAR_KEEP; |
2248 | GNode *gn = Targ_FindNode(st->v->name, TARG_NOCREATE); | | 2248 | GNode *gn = Targ_FindNode(st->v->name, TARG_NOCREATE); |
2249 | if (gn == NULL || gn->type & OP_NOPATH) { | | 2249 | if (gn == NULL || gn->type & OP_NOPATH) { |
2250 | st->newVal = NULL; | | 2250 | st->newVal = NULL; |
2251 | } else if (gn->path) { | | 2251 | } else if (gn->path) { |
2252 | st->newVal = bmake_strdup(gn->path); | | 2252 | st->newVal = bmake_strdup(gn->path); |
2253 | } else { | | 2253 | } else { |
2254 | st->newVal = Dir_FindFile(st->v->name, Suff_FindPath(gn)); | | 2254 | st->newVal = Dir_FindFile(st->v->name, Suff_FindPath(gn)); |
2255 | } | | 2255 | } |
2256 | if (!st->newVal) | | 2256 | if (!st->newVal) |
2257 | st->newVal = bmake_strdup(st->v->name); | | 2257 | st->newVal = bmake_strdup(st->v->name); |
2258 | st->next = mod + 1; | | 2258 | st->next = mod + 1; |
2259 | } | | 2259 | } |
2260 | | | 2260 | |
2261 | /* :!cmd! */ | | 2261 | /* :!cmd! */ |
2262 | static Boolean | | 2262 | static Boolean |
2263 | ApplyModifier_Exclam(const char *mod, ApplyModifiersState *st) | | 2263 | ApplyModifier_Exclam(const char *mod, ApplyModifiersState *st) |
2264 | { | | 2264 | { |
2265 | st->next = mod + 1; | | 2265 | st->next = mod + 1; |
2266 | char delim = '!'; | | 2266 | char delim = '!'; |
2267 | char *cmd = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, | | 2267 | char *cmd = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, |
2268 | NULL, NULL, NULL); | | 2268 | NULL, NULL, NULL); |
2269 | if (cmd == NULL) { | | 2269 | if (cmd == NULL) { |
2270 | st->missing_delim = delim; | | 2270 | st->missing_delim = delim; |
2271 | return FALSE; | | 2271 | return FALSE; |
2272 | } | | 2272 | } |
2273 | | | 2273 | |
2274 | const char *emsg = NULL; | | 2274 | const char *emsg = NULL; |
2275 | if (st->eflags & VARE_WANTRES) | | 2275 | if (st->eflags & VARE_WANTRES) |
2276 | st->newVal = Cmd_Exec(cmd, &emsg); | | 2276 | st->newVal = Cmd_Exec(cmd, &emsg); |
2277 | else | | 2277 | else |
2278 | st->newVal = varNoError; | | 2278 | st->newVal = varNoError; |
2279 | free(cmd); | | 2279 | free(cmd); |
2280 | | | 2280 | |
2281 | if (emsg) | | 2281 | if (emsg) |
2282 | Error(emsg, st->val); | | 2282 | Error(emsg, st->val); |
2283 | | | 2283 | |
2284 | if (st->v->flags & VAR_JUNK) | | 2284 | if (st->v->flags & VAR_JUNK) |
2285 | st->v->flags |= VAR_KEEP; | | 2285 | st->v->flags |= VAR_KEEP; |
2286 | return TRUE; | | 2286 | return TRUE; |
2287 | } | | 2287 | } |
2288 | | | 2288 | |
2289 | /* :range */ | | 2289 | /* :range */ |
2290 | static Boolean | | 2290 | static Boolean |
2291 | ApplyModifier_Range(const char *mod, ApplyModifiersState *st) | | 2291 | ApplyModifier_Range(const char *mod, ApplyModifiersState *st) |
2292 | { | | 2292 | { |
2293 | if (!ModMatchEq(mod, "range", st->endc)) { | | 2293 | if (!ModMatchEq(mod, "range", st->endc)) { |
2294 | st->next = mod + 1; | | 2294 | st->next = mod + 1; |
2295 | return FALSE; | | 2295 | return FALSE; |
2296 | } | | 2296 | } |
2297 | | | 2297 | |
2298 | int n; | | 2298 | int n; |
2299 | if (mod[5] == '=') { | | 2299 | if (mod[5] == '=') { |
2300 | char *ep; | | 2300 | char *ep; |
2301 | n = strtoul(mod + 6, &ep, 10); | | 2301 | n = strtoul(mod + 6, &ep, 10); |
2302 | st->next = ep; | | 2302 | st->next = ep; |
2303 | } else { | | 2303 | } else { |
2304 | n = 0; | | 2304 | n = 0; |
2305 | st->next = mod + 5; | | 2305 | st->next = mod + 5; |
2306 | } | | 2306 | } |
2307 | st->newVal = VarRange(st->val, n); | | 2307 | st->newVal = VarRange(st->val, n); |
2308 | return TRUE; | | 2308 | return TRUE; |
2309 | } | | 2309 | } |
2310 | | | 2310 | |
2311 | /* :Mpattern or :Npattern */ | | 2311 | /* :Mpattern or :Npattern */ |
2312 | static void | | 2312 | static void |
2313 | ApplyModifier_Match(const char *mod, ApplyModifiersState *st) | | 2313 | ApplyModifier_Match(const char *mod, ApplyModifiersState *st) |
2314 | { | | 2314 | { |
2315 | Boolean copy = FALSE; /* pattern should be, or has been, copied */ | | 2315 | Boolean copy = FALSE; /* pattern should be, or has been, copied */ |
2316 | Boolean needSubst = FALSE; | | 2316 | Boolean needSubst = FALSE; |
2317 | /* | | 2317 | /* |
2318 | * In the loop below, ignore ':' unless we are at (or back to) the | | 2318 | * In the loop below, ignore ':' unless we are at (or back to) the |
2319 | * original brace level. | | 2319 | * original brace level. |
2320 | * XXX This will likely not work right if $() and ${} are intermixed. | | 2320 | * XXX This will likely not work right if $() and ${} are intermixed. |
2321 | */ | | 2321 | */ |
2322 | int nest = 1; | | 2322 | int nest = 1; |
2323 | const char *p; | | 2323 | const char *p; |
2324 | for (p = mod + 1; *p != '\0' && !(*p == ':' && nest == 1); p++) { | | 2324 | for (p = mod + 1; *p != '\0' && !(*p == ':' && nest == 1); p++) { |
2325 | if (*p == '\\' && | | 2325 | if (*p == '\\' && |
2326 | (p[1] == ':' || p[1] == st->endc || p[1] == st->startc)) { | | 2326 | (p[1] == ':' || p[1] == st->endc || p[1] == st->startc)) { |
2327 | if (!needSubst) | | 2327 | if (!needSubst) |
2328 | copy = TRUE; | | 2328 | copy = TRUE; |
2329 | p++; | | 2329 | p++; |
2330 | continue; | | 2330 | continue; |
2331 | } | | 2331 | } |
2332 | if (*p == '$') | | 2332 | if (*p == '$') |
2333 | needSubst = TRUE; | | 2333 | needSubst = TRUE; |
2334 | if (*p == '(' || *p == '{') | | 2334 | if (*p == '(' || *p == '{') |
2335 | ++nest; | | 2335 | ++nest; |
2336 | if (*p == ')' || *p == '}') { | | 2336 | if (*p == ')' || *p == '}') { |
2337 | --nest; | | 2337 | --nest; |
2338 | if (nest == 0) | | 2338 | if (nest == 0) |
2339 | break; | | 2339 | break; |
2340 | } | | 2340 | } |
2341 | } | | 2341 | } |
2342 | st->next = p; | | 2342 | st->next = p; |
2343 | const char *endpat = st->next; | | 2343 | const char *endpat = st->next; |
2344 | | | 2344 | |
2345 | char *pattern; | | 2345 | char *pattern; |
2346 | if (copy) { | | 2346 | if (copy) { |
2347 | /* Compress the \:'s out of the pattern. */ | | 2347 | /* Compress the \:'s out of the pattern. */ |
2348 | pattern = bmake_malloc(endpat - (mod + 1) + 1); | | 2348 | pattern = bmake_malloc(endpat - (mod + 1) + 1); |
2349 | char *dst = pattern; | | 2349 | char *dst = pattern; |
2350 | const char *src = mod + 1; | | 2350 | const char *src = mod + 1; |
2351 | for (; src < endpat; src++, dst++) { | | 2351 | for (; src < endpat; src++, dst++) { |
2352 | if (src[0] == '\\' && src + 1 < endpat && | | 2352 | if (src[0] == '\\' && src + 1 < endpat && |
2353 | /* XXX: st->startc is missing here; see above */ | | 2353 | /* XXX: st->startc is missing here; see above */ |
2354 | (src[1] == ':' || src[1] == st->endc)) | | 2354 | (src[1] == ':' || src[1] == st->endc)) |
2355 | src++; | | 2355 | src++; |
2356 | *dst = *src; | | 2356 | *dst = *src; |
2357 | } | | 2357 | } |
2358 | *dst = '\0'; | | 2358 | *dst = '\0'; |
2359 | endpat = dst; | | 2359 | endpat = dst; |
2360 | } else { | | 2360 | } else { |
2361 | /* | | 2361 | /* |
2362 | * Either Var_Subst or ModifyWords will need a | | 2362 | * Either Var_Subst or ModifyWords will need a |
2363 | * nul-terminated string soon, so construct one now. | | 2363 | * nul-terminated string soon, so construct one now. |
2364 | */ | | 2364 | */ |
2365 | pattern = bmake_strndup(mod + 1, endpat - (mod + 1)); | | 2365 | pattern = bmake_strndup(mod + 1, endpat - (mod + 1)); |
2366 | } | | 2366 | } |
2367 | | | 2367 | |
2368 | if (needSubst) { | | 2368 | if (needSubst) { |
2369 | /* pattern contains embedded '$', so use Var_Subst to expand it. */ | | 2369 | /* pattern contains embedded '$', so use Var_Subst to expand it. */ |
2370 | char *old_pattern = pattern; | | 2370 | char *old_pattern = pattern; |
2371 | pattern = Var_Subst(pattern, st->ctxt, st->eflags); | | 2371 | pattern = Var_Subst(pattern, st->ctxt, st->eflags); |
2372 | free(old_pattern); | | 2372 | free(old_pattern); |
2373 | } | | 2373 | } |
2374 | | | 2374 | |
2375 | if (DEBUG(VAR)) | | 2375 | if (DEBUG(VAR)) |
2376 | fprintf(debug_file, "Pattern[%s] for [%s] is [%s]\n", | | 2376 | fprintf(debug_file, "Pattern[%s] for [%s] is [%s]\n", |
2377 | st->v->name, st->val, pattern); | | 2377 | st->v->name, st->val, pattern); |
2378 | | | 2378 | |
2379 | ModifyWordsCallback callback = mod[0] == 'M' | | 2379 | ModifyWordsCallback callback = mod[0] == 'M' |
2380 | ? ModifyWord_Match : ModifyWord_NoMatch; | | 2380 | ? ModifyWord_Match : ModifyWord_NoMatch; |
2381 | st->newVal = ModifyWords(st->ctxt, st->sep, st->oneBigWord, st->val, | | 2381 | st->newVal = ModifyWords(st->ctxt, st->sep, st->oneBigWord, st->val, |
2382 | callback, pattern); | | 2382 | callback, pattern); |
2383 | free(pattern); | | 2383 | free(pattern); |
2384 | } | | 2384 | } |
2385 | | | 2385 | |
2386 | /* :S,from,to, */ | | 2386 | /* :S,from,to, */ |
2387 | static Boolean | | 2387 | static Boolean |
2388 | ApplyModifier_Subst(const char * const mod, ApplyModifiersState *st) | | 2388 | ApplyModifier_Subst(const char * const mod, ApplyModifiersState *st) |
2389 | { | | 2389 | { |
2390 | ModifyWord_SubstArgs args; | | 2390 | ModifyWord_SubstArgs args; |
2391 | Boolean oneBigWord = st->oneBigWord; | | 2391 | Boolean oneBigWord = st->oneBigWord; |
2392 | char delim = mod[1]; | | 2392 | char delim = mod[1]; |
2393 | | | 2393 | |
2394 | st->next = mod + 2; | | 2394 | st->next = mod + 2; |
2395 | | | 2395 | |
2396 | /* | | 2396 | /* |
2397 | * If pattern begins with '^', it is anchored to the | | 2397 | * If pattern begins with '^', it is anchored to the |
2398 | * start of the word -- skip over it and flag pattern. | | 2398 | * start of the word -- skip over it and flag pattern. |
2399 | */ | | 2399 | */ |
2400 | args.pflags = 0; | | 2400 | args.pflags = 0; |
2401 | if (*st->next == '^') { | | 2401 | if (*st->next == '^') { |
2402 | args.pflags |= VARP_ANCHOR_START; | | 2402 | args.pflags |= VARP_ANCHOR_START; |
2403 | st->next++; | | 2403 | st->next++; |
2404 | } | | 2404 | } |
2405 | | | 2405 | |
2406 | char *lhs = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, | | 2406 | char *lhs = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, |
2407 | &args.lhsLen, &args.pflags, NULL); | | 2407 | &args.lhsLen, &args.pflags, NULL); |
2408 | if (lhs == NULL) { | | 2408 | if (lhs == NULL) { |
2409 | st->missing_delim = delim; | | 2409 | st->missing_delim = delim; |
2410 | return FALSE; | | 2410 | return FALSE; |
2411 | } | | 2411 | } |
2412 | args.lhs = lhs; | | 2412 | args.lhs = lhs; |
2413 | | | 2413 | |
2414 | char *rhs = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, | | 2414 | char *rhs = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, |
2415 | &args.rhsLen, NULL, &args); | | 2415 | &args.rhsLen, NULL, &args); |
2416 | if (rhs == NULL) { | | 2416 | if (rhs == NULL) { |
2417 | st->missing_delim = delim; | | 2417 | st->missing_delim = delim; |
2418 | return FALSE; | | 2418 | return FALSE; |
2419 | } | | 2419 | } |
2420 | args.rhs = rhs; | | 2420 | args.rhs = rhs; |
2421 | | | 2421 | |
2422 | /* | | 2422 | /* |
2423 | * Check for global substitution. If 'g' after the final | | 2423 | * Check for global substitution. If 'g' after the final |
2424 | * delimiter, substitution is global and is marked that | | 2424 | * delimiter, substitution is global and is marked that |
2425 | * way. | | 2425 | * way. |
2426 | */ | | 2426 | */ |
2427 | for (;; st->next++) { | | 2427 | for (;; st->next++) { |
2428 | switch (*st->next) { | | 2428 | switch (*st->next) { |
2429 | case 'g': | | 2429 | case 'g': |
2430 | args.pflags |= VARP_SUB_GLOBAL; | | 2430 | args.pflags |= VARP_SUB_GLOBAL; |
2431 | continue; | | 2431 | continue; |
2432 | case '1': | | 2432 | case '1': |
2433 | args.pflags |= VARP_SUB_ONE; | | 2433 | args.pflags |= VARP_SUB_ONE; |
2434 | continue; | | 2434 | continue; |
2435 | case 'W': | | 2435 | case 'W': |
2436 | oneBigWord = TRUE; | | 2436 | oneBigWord = TRUE; |
2437 | continue; | | 2437 | continue; |
2438 | } | | 2438 | } |
2439 | break; | | 2439 | break; |
2440 | } | | 2440 | } |
2441 | | | 2441 | |
2442 | st->newVal = ModifyWords(st->ctxt, st->sep, oneBigWord, st->val, | | 2442 | st->newVal = ModifyWords(st->ctxt, st->sep, oneBigWord, st->val, |
2443 | ModifyWord_Subst, &args); | | 2443 | ModifyWord_Subst, &args); |
2444 | | | 2444 | |
2445 | free(lhs); | | 2445 | free(lhs); |
2446 | free(rhs); | | 2446 | free(rhs); |
2447 | return TRUE; | | 2447 | return TRUE; |
2448 | } | | 2448 | } |
2449 | | | 2449 | |
2450 | #ifndef NO_REGEX | | 2450 | #ifndef NO_REGEX |
2451 | | | 2451 | |
2452 | /* :C,from,to, */ | | 2452 | /* :C,from,to, */ |
2453 | static Boolean | | 2453 | static Boolean |
2454 | ApplyModifier_Regex(const char *mod, ApplyModifiersState *st) | | 2454 | ApplyModifier_Regex(const char *mod, ApplyModifiersState *st) |
2455 | { | | 2455 | { |
2456 | ModifyWord_SubstRegexArgs args; | | 2456 | ModifyWord_SubstRegexArgs args; |
2457 | | | 2457 | |
2458 | args.pflags = 0; | | 2458 | args.pflags = 0; |
2459 | Boolean oneBigWord = st->oneBigWord; | | 2459 | Boolean oneBigWord = st->oneBigWord; |
2460 | char delim = mod[1]; | | 2460 | char delim = mod[1]; |
2461 | | | 2461 | |
2462 | st->next = mod + 2; | | 2462 | st->next = mod + 2; |
2463 | | | 2463 | |
2464 | char *re = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, | | 2464 | char *re = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, |
2465 | NULL, NULL, NULL); | | 2465 | NULL, NULL, NULL); |
2466 | if (re == NULL) { | | 2466 | if (re == NULL) { |
2467 | st->missing_delim = delim; | | 2467 | st->missing_delim = delim; |
2468 | return FALSE; | | 2468 | return FALSE; |
2469 | } | | 2469 | } |
2470 | | | 2470 | |
2471 | args.replace = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, | | 2471 | args.replace = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, |
2472 | NULL, NULL, NULL); | | 2472 | NULL, NULL, NULL); |
2473 | if (args.replace == NULL) { | | 2473 | if (args.replace == NULL) { |
2474 | free(re); | | 2474 | free(re); |
2475 | st->missing_delim = delim; | | 2475 | st->missing_delim = delim; |
2476 | return FALSE; | | 2476 | return FALSE; |
2477 | } | | 2477 | } |
2478 | | | 2478 | |
2479 | for (;; st->next++) { | | 2479 | for (;; st->next++) { |
2480 | switch (*st->next) { | | 2480 | switch (*st->next) { |
2481 | case 'g': | | 2481 | case 'g': |
2482 | args.pflags |= VARP_SUB_GLOBAL; | | 2482 | args.pflags |= VARP_SUB_GLOBAL; |
2483 | continue; | | 2483 | continue; |
2484 | case '1': | | 2484 | case '1': |
2485 | args.pflags |= VARP_SUB_ONE; | | 2485 | args.pflags |= VARP_SUB_ONE; |
2486 | continue; | | 2486 | continue; |
2487 | case 'W': | | 2487 | case 'W': |
2488 | oneBigWord = TRUE; | | 2488 | oneBigWord = TRUE; |
2489 | continue; | | 2489 | continue; |
2490 | } | | 2490 | } |
2491 | break; | | 2491 | break; |
2492 | } | | 2492 | } |
2493 | | | 2493 | |
2494 | int error = regcomp(&args.re, re, REG_EXTENDED); | | 2494 | int error = regcomp(&args.re, re, REG_EXTENDED); |
2495 | free(re); | | 2495 | free(re); |
2496 | if (error) { | | 2496 | if (error) { |
2497 | VarREError(error, &args.re, "RE substitution error"); | | 2497 | VarREError(error, &args.re, "RE substitution error"); |
2498 | free(args.replace); | | 2498 | free(args.replace); |
2499 | return FALSE; | | 2499 | return FALSE; |
2500 | } | | 2500 | } |
2501 | | | 2501 | |
2502 | args.nsub = args.re.re_nsub + 1; | | 2502 | args.nsub = args.re.re_nsub + 1; |
2503 | if (args.nsub < 1) | | 2503 | if (args.nsub < 1) |
2504 | args.nsub = 1; | | 2504 | args.nsub = 1; |
2505 | if (args.nsub > 10) | | 2505 | if (args.nsub > 10) |
2506 | args.nsub = 10; | | 2506 | args.nsub = 10; |
2507 | st->newVal = ModifyWords(st->ctxt, st->sep, oneBigWord, st->val, | | 2507 | st->newVal = ModifyWords(st->ctxt, st->sep, oneBigWord, st->val, |
2508 | ModifyWord_SubstRegex, &args); | | 2508 | ModifyWord_SubstRegex, &args); |
2509 | regfree(&args.re); | | 2509 | regfree(&args.re); |
2510 | free(args.replace); | | 2510 | free(args.replace); |
2511 | return TRUE; | | 2511 | return TRUE; |
2512 | } | | 2512 | } |
2513 | #endif | | 2513 | #endif |
2514 | | | 2514 | |
2515 | static void | | 2515 | static void |
2516 | ModifyWord_Copy(const char *word, SepBuf *buf, void *data MAKE_ATTR_UNUSED) | | 2516 | ModifyWord_Copy(const char *word, SepBuf *buf, void *data MAKE_ATTR_UNUSED) |
2517 | { | | 2517 | { |
2518 | SepBuf_AddStr(buf, word); | | 2518 | SepBuf_AddStr(buf, word); |
2519 | } | | 2519 | } |
2520 | | | 2520 | |
2521 | /* :ts<separator> */ | | 2521 | /* :ts<separator> */ |
2522 | static Boolean | | 2522 | static Boolean |
2523 | ApplyModifier_ToSep(const char *sep, ApplyModifiersState *st) | | 2523 | ApplyModifier_ToSep(const char *sep, ApplyModifiersState *st) |
2524 | { | | 2524 | { |
2525 | if (sep[0] != st->endc && (sep[1] == st->endc || sep[1] == ':')) { | | 2525 | if (sep[0] != st->endc && (sep[1] == st->endc || sep[1] == ':')) { |
2526 | /* ":ts<unrecognised><endc>" or ":ts<unrecognised>:" */ | | 2526 | /* ":ts<any><endc>" or ":ts<any>:" */ |
2527 | st->sep = sep[0]; | | 2527 | st->sep = sep[0]; |
2528 | st->next = sep + 1; | | 2528 | st->next = sep + 1; |
2529 | } else if (sep[0] == st->endc || sep[0] == ':') { | | 2529 | } else if (sep[0] == st->endc || sep[0] == ':') { |
2530 | /* ":ts<endc>" or ":ts:" */ | | 2530 | /* ":ts<endc>" or ":ts:" */ |
2531 | st->sep = '\0'; /* no separator */ | | 2531 | st->sep = '\0'; /* no separator */ |
2532 | st->next = sep; | | 2532 | st->next = sep; |
2533 | } else if (sep[0] == '\\') { | | 2533 | } else if (sep[0] == '\\') { |
2534 | const char *xp = sep + 1; | | 2534 | const char *xp = sep + 1; |
2535 | int base = 8; /* assume octal */ | | 2535 | int base = 8; /* assume octal */ |
2536 | | | 2536 | |
2537 | switch (sep[1]) { | | 2537 | switch (sep[1]) { |
2538 | case 'n': | | 2538 | case 'n': |
2539 | st->sep = '\n'; | | 2539 | st->sep = '\n'; |
2540 | st->next = sep + 2; | | 2540 | st->next = sep + 2; |
2541 | break; | | 2541 | break; |
2542 | case 't': | | 2542 | case 't': |
2543 | st->sep = '\t'; | | 2543 | st->sep = '\t'; |
2544 | st->next = sep + 2; | | 2544 | st->next = sep + 2; |
2545 | break; | | 2545 | break; |
2546 | case 'x': | | 2546 | case 'x': |
2547 | base = 16; | | 2547 | base = 16; |
2548 | xp++; | | 2548 | xp++; |
2549 | goto get_numeric; | | 2549 | goto get_numeric; |
2550 | case '0': | | 2550 | case '0': |
2551 | base = 0; | | 2551 | base = 0; |
2552 | goto get_numeric; | | 2552 | goto get_numeric; |
2553 | default: | | 2553 | default: |
2554 | if (!isdigit((unsigned char)sep[1])) | | 2554 | if (!isdigit((unsigned char)sep[1])) |
2555 | return FALSE; /* ":ts<backslash><unrecognised>". */ | | 2555 | return FALSE; /* ":ts<backslash><unrecognised>". */ |
2556 | | | 2556 | |
2557 | char *end; | | 2557 | char *end; |
2558 | get_numeric: | | 2558 | get_numeric: |
2559 | st->sep = strtoul(sep + 1 + (sep[1] == 'x'), &end, base); | | 2559 | st->sep = strtoul(sep + 1 + (sep[1] == 'x'), &end, base); |
2560 | if (*end != ':' && *end != st->endc) | | 2560 | if (*end != ':' && *end != st->endc) |
2561 | return FALSE; | | 2561 | return FALSE; |
2562 | st->next = end; | | 2562 | st->next = end; |
2563 | break; | | 2563 | break; |
2564 | } | | 2564 | } |
2565 | } else { | | 2565 | } else { |
2566 | return FALSE; /* Found ":ts<unrecognised><unrecognised>". */ | | 2566 | return FALSE; /* Found ":ts<unrecognised><unrecognised>". */ |
2567 | } | | 2567 | } |
2568 | | | 2568 | |
2569 | st->newVal = ModifyWords(st->ctxt, st->sep, st->oneBigWord, st->val, | | 2569 | st->newVal = ModifyWords(st->ctxt, st->sep, st->oneBigWord, st->val, |
2570 | ModifyWord_Copy, NULL); | | 2570 | ModifyWord_Copy, NULL); |
2571 | return TRUE; | | 2571 | return TRUE; |
2572 | } | | 2572 | } |
2573 | | | 2573 | |
2574 | /* :tA, :tu, :tl, :ts<separator>, etc. */ | | 2574 | /* :tA, :tu, :tl, :ts<separator>, etc. */ |
2575 | static Boolean | | 2575 | static Boolean |
2576 | ApplyModifier_To(const char *mod, ApplyModifiersState *st) | | 2576 | ApplyModifier_To(const char *mod, ApplyModifiersState *st) |
2577 | { | | 2577 | { |
2578 | st->next = mod + 1; /* make sure it is set */ | | 2578 | st->next = mod + 1; /* make sure it is set */ |
2579 | if (mod[1] == st->endc || mod[1] == ':') | | 2579 | if (mod[1] == st->endc || mod[1] == ':') |
2580 | return FALSE; /* Found ":t<endc>" or ":t:". */ | | 2580 | return FALSE; /* Found ":t<endc>" or ":t:". */ |
2581 | | | 2581 | |
2582 | if (mod[1] == 's') | | 2582 | if (mod[1] == 's') |
2583 | return ApplyModifier_ToSep(mod + 2, st); | | 2583 | return ApplyModifier_ToSep(mod + 2, st); |
2584 | | | 2584 | |
2585 | if (mod[2] != st->endc && mod[2] != ':') | | 2585 | if (mod[2] != st->endc && mod[2] != ':') |
2586 | return FALSE; /* Found ":t<unrecognised><unrecognised>". */ | | 2586 | return FALSE; /* Found ":t<unrecognised><unrecognised>". */ |
2587 | | | 2587 | |
2588 | /* Check for two-character options: ":tu", ":tl" */ | | 2588 | /* Check for two-character options: ":tu", ":tl" */ |
2589 | if (mod[1] == 'A') { /* absolute path */ | | 2589 | if (mod[1] == 'A') { /* absolute path */ |
2590 | st->newVal = ModifyWords(st->ctxt, st->sep, st->oneBigWord, st->val, | | 2590 | st->newVal = ModifyWords(st->ctxt, st->sep, st->oneBigWord, st->val, |
2591 | ModifyWord_Realpath, NULL); | | 2591 | ModifyWord_Realpath, NULL); |
2592 | st->next = mod + 2; | | 2592 | st->next = mod + 2; |
2593 | } else if (mod[1] == 'u') { | | 2593 | } else if (mod[1] == 'u') { |
2594 | char *dp = bmake_strdup(st->val); | | 2594 | char *dp = bmake_strdup(st->val); |
2595 | for (st->newVal = dp; *dp; dp++) | | 2595 | for (st->newVal = dp; *dp; dp++) |
2596 | *dp = toupper((unsigned char)*dp); | | 2596 | *dp = toupper((unsigned char)*dp); |
2597 | st->next = mod + 2; | | 2597 | st->next = mod + 2; |
2598 | } else if (mod[1] == 'l') { | | 2598 | } else if (mod[1] == 'l') { |
2599 | char *dp = bmake_strdup(st->val); | | 2599 | char *dp = bmake_strdup(st->val); |
2600 | for (st->newVal = dp; *dp; dp++) | | 2600 | for (st->newVal = dp; *dp; dp++) |
2601 | *dp = tolower((unsigned char)*dp); | | 2601 | *dp = tolower((unsigned char)*dp); |
2602 | st->next = mod + 2; | | 2602 | st->next = mod + 2; |
2603 | } else if (mod[1] == 'W' || mod[1] == 'w') { | | 2603 | } else if (mod[1] == 'W' || mod[1] == 'w') { |
2604 | st->oneBigWord = mod[1] == 'W'; | | 2604 | st->oneBigWord = mod[1] == 'W'; |
2605 | st->newVal = st->val; | | 2605 | st->newVal = st->val; |
2606 | st->next = mod + 2; | | 2606 | st->next = mod + 2; |
2607 | } else { | | 2607 | } else { |
2608 | /* Found ":t<unrecognised>:" or ":t<unrecognised><endc>". */ | | 2608 | /* Found ":t<unrecognised>:" or ":t<unrecognised><endc>". */ |
2609 | return FALSE; | | 2609 | return FALSE; |
2610 | } | | 2610 | } |
2611 | return TRUE; | | 2611 | return TRUE; |
2612 | } | | 2612 | } |
2613 | | | 2613 | |
2614 | /* :[#], :[1], etc. */ | | 2614 | /* :[#], :[1], etc. */ |
2615 | static int | | 2615 | static int |
2616 | ApplyModifier_Words(const char *mod, ApplyModifiersState *st) | | 2616 | ApplyModifier_Words(const char *mod, ApplyModifiersState *st) |
2617 | { | | 2617 | { |
2618 | st->next = mod + 1; /* point to char after '[' */ | | 2618 | st->next = mod + 1; /* point to char after '[' */ |
2619 | char delim = ']'; /* look for closing ']' */ | | 2619 | char delim = ']'; /* look for closing ']' */ |
2620 | char *estr = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, | | 2620 | char *estr = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, |
2621 | NULL, NULL, NULL); | | 2621 | NULL, NULL, NULL); |
2622 | if (estr == NULL) { | | 2622 | if (estr == NULL) { |
2623 | st->missing_delim = delim; | | 2623 | st->missing_delim = delim; |
2624 | return 'c'; | | 2624 | return 'c'; |
2625 | } | | 2625 | } |
2626 | | | 2626 | |
2627 | /* now st->next points just after the closing ']' */ | | 2627 | /* now st->next points just after the closing ']' */ |
2628 | if (st->next[0] != ':' && st->next[0] != st->endc) | | 2628 | if (st->next[0] != ':' && st->next[0] != st->endc) |
2629 | goto bad_modifier; /* Found junk after ']' */ | | 2629 | goto bad_modifier; /* Found junk after ']' */ |
2630 | | | 2630 | |
2631 | if (estr[0] == '\0') | | 2631 | if (estr[0] == '\0') |
2632 | goto bad_modifier; /* empty square brackets in ":[]". */ | | 2632 | goto bad_modifier; /* empty square brackets in ":[]". */ |
2633 | | | 2633 | |
2634 | if (estr[0] == '#' && estr[1] == '\0') { /* Found ":[#]" */ | | 2634 | if (estr[0] == '#' && estr[1] == '\0') { /* Found ":[#]" */ |
2635 | if (st->oneBigWord) { | | 2635 | if (st->oneBigWord) { |
2636 | st->newVal = bmake_strdup("1"); | | 2636 | st->newVal = bmake_strdup("1"); |
2637 | } else { | | 2637 | } else { |
2638 | /* XXX: brk_string() is a rather expensive | | 2638 | /* XXX: brk_string() is a rather expensive |
2639 | * way of counting words. */ | | 2639 | * way of counting words. */ |
2640 | char *as; | | 2640 | char *as; |
2641 | int ac; | | 2641 | int ac; |
2642 | char **av = brk_string(st->val, &ac, FALSE, &as); | | 2642 | char **av = brk_string(st->val, &ac, FALSE, &as); |
2643 | free(as); | | 2643 | free(as); |
2644 | free(av); | | 2644 | free(av); |
2645 | | | 2645 | |
2646 | Buffer buf; | | 2646 | Buffer buf; |
2647 | Buf_Init(&buf, 4); /* 3 digits + '\0' */ | | 2647 | Buf_Init(&buf, 4); /* 3 digits + '\0' */ |
2648 | Buf_AddInt(&buf, ac); | | 2648 | Buf_AddInt(&buf, ac); |
2649 | st->newVal = Buf_Destroy(&buf, FALSE); | | 2649 | st->newVal = Buf_Destroy(&buf, FALSE); |
2650 | } | | 2650 | } |
2651 | goto ok; | | 2651 | goto ok; |
2652 | } | | 2652 | } |
2653 | | | 2653 | |
2654 | if (estr[0] == '*' && estr[1] == '\0') { | | 2654 | if (estr[0] == '*' && estr[1] == '\0') { |
2655 | /* Found ":[*]" */ | | 2655 | /* Found ":[*]" */ |
2656 | st->oneBigWord = TRUE; | | 2656 | st->oneBigWord = TRUE; |
2657 | st->newVal = st->val; | | 2657 | st->newVal = st->val; |
2658 | goto ok; | | 2658 | goto ok; |
2659 | } | | 2659 | } |
2660 | | | 2660 | |
2661 | if (estr[0] == '@' && estr[1] == '\0') { | | 2661 | if (estr[0] == '@' && estr[1] == '\0') { |
2662 | /* Found ":[@]" */ | | 2662 | /* Found ":[@]" */ |
2663 | st->oneBigWord = FALSE; | | 2663 | st->oneBigWord = FALSE; |
2664 | st->newVal = st->val; | | 2664 | st->newVal = st->val; |
2665 | goto ok; | | 2665 | goto ok; |
2666 | } | | 2666 | } |
2667 | | | 2667 | |
2668 | /* | | 2668 | /* |
2669 | * We expect estr to contain a single integer for :[N], or two integers | | 2669 | * We expect estr to contain a single integer for :[N], or two integers |
2670 | * separated by ".." for :[start..end]. | | 2670 | * separated by ".." for :[start..end]. |
2671 | */ | | 2671 | */ |
2672 | char *ep; | | 2672 | char *ep; |
2673 | int first = strtol(estr, &ep, 0); | | 2673 | int first = strtol(estr, &ep, 0); |
2674 | int last; | | 2674 | int last; |
2675 | if (ep == estr) /* Found junk instead of a number */ | | 2675 | if (ep == estr) /* Found junk instead of a number */ |
2676 | goto bad_modifier; | | 2676 | goto bad_modifier; |
2677 | | | 2677 | |
2678 | if (ep[0] == '\0') { /* Found only one integer in :[N] */ | | 2678 | if (ep[0] == '\0') { /* Found only one integer in :[N] */ |
2679 | last = first; | | 2679 | last = first; |
2680 | } else if (ep[0] == '.' && ep[1] == '.' && ep[2] != '\0') { | | 2680 | } else if (ep[0] == '.' && ep[1] == '.' && ep[2] != '\0') { |
2681 | /* Expecting another integer after ".." */ | | 2681 | /* Expecting another integer after ".." */ |
2682 | ep += 2; | | 2682 | ep += 2; |
2683 | last = strtol(ep, &ep, 0); | | 2683 | last = strtol(ep, &ep, 0); |
2684 | if (ep[0] != '\0') /* Found junk after ".." */ | | 2684 | if (ep[0] != '\0') /* Found junk after ".." */ |
2685 | goto bad_modifier; | | 2685 | goto bad_modifier; |
2686 | } else | | 2686 | } else |
2687 | goto bad_modifier; /* Found junk instead of ".." */ | | 2687 | goto bad_modifier; /* Found junk instead of ".." */ |
2688 | | | 2688 | |
2689 | /* | | 2689 | /* |
2690 | * Now seldata is properly filled in, but we still have to check for 0 as | | 2690 | * Now seldata is properly filled in, but we still have to check for 0 as |
2691 | * a special case. | | 2691 | * a special case. |
2692 | */ | | 2692 | */ |
2693 | if (first == 0 && last == 0) { | | 2693 | if (first == 0 && last == 0) { |
2694 | /* ":[0]" or perhaps ":[0..0]" */ | | 2694 | /* ":[0]" or perhaps ":[0..0]" */ |
2695 | st->oneBigWord = TRUE; | | 2695 | st->oneBigWord = TRUE; |
2696 | st->newVal = st->val; | | 2696 | st->newVal = st->val; |
2697 | goto ok; | | 2697 | goto ok; |
2698 | } | | 2698 | } |
2699 | | | 2699 | |
2700 | /* ":[0..N]" or ":[N..0]" */ | | 2700 | /* ":[0..N]" or ":[N..0]" */ |
2701 | if (first == 0 || last == 0) | | 2701 | if (first == 0 || last == 0) |
2702 | goto bad_modifier; | | 2702 | goto bad_modifier; |
2703 | | | 2703 | |
2704 | /* Normal case: select the words described by seldata. */ | | 2704 | /* Normal case: select the words described by seldata. */ |
2705 | st->newVal = VarSelectWords(st->sep, st->oneBigWord, st->val, first, last); | | 2705 | st->newVal = VarSelectWords(st->sep, st->oneBigWord, st->val, first, last); |
2706 | | | 2706 | |
2707 | ok: | | 2707 | ok: |
2708 | free(estr); | | 2708 | free(estr); |
2709 | return 0; | | 2709 | return 0; |
2710 | | | 2710 | |
2711 | bad_modifier: | | 2711 | bad_modifier: |
2712 | free(estr); | | 2712 | free(estr); |
2713 | return 'b'; | | 2713 | return 'b'; |
2714 | } | | 2714 | } |
2715 | | | 2715 | |
2716 | /* :O or :Ox */ | | 2716 | /* :O or :Ox */ |
2717 | static Boolean | | 2717 | static Boolean |
2718 | ApplyModifier_Order(const char *mod, ApplyModifiersState *st) | | 2718 | ApplyModifier_Order(const char *mod, ApplyModifiersState *st) |
2719 | { | | 2719 | { |
2720 | char otype; | | 2720 | char otype; |
2721 | | | 2721 | |
2722 | st->next = mod + 1; /* skip to the rest in any case */ | | 2722 | st->next = mod + 1; /* skip to the rest in any case */ |
2723 | if (mod[1] == st->endc || mod[1] == ':') { | | 2723 | if (mod[1] == st->endc || mod[1] == ':') { |
2724 | otype = 's'; | | 2724 | otype = 's'; |
2725 | } else if ((mod[1] == 'r' || mod[1] == 'x') && | | 2725 | } else if ((mod[1] == 'r' || mod[1] == 'x') && |
2726 | (mod[2] == st->endc || mod[2] == ':')) { | | 2726 | (mod[2] == st->endc || mod[2] == ':')) { |
2727 | otype = mod[1]; | | 2727 | otype = mod[1]; |
2728 | st->next = mod + 2; | | 2728 | st->next = mod + 2; |
2729 | } else { | | 2729 | } else { |
2730 | return FALSE; | | 2730 | return FALSE; |
2731 | } | | 2731 | } |
2732 | st->newVal = VarOrder(st->val, otype); | | 2732 | st->newVal = VarOrder(st->val, otype); |
2733 | return TRUE; | | 2733 | return TRUE; |
2734 | } | | 2734 | } |
2735 | | | 2735 | |
2736 | /* :? then : else */ | | 2736 | /* :? then : else */ |
2737 | static Boolean | | 2737 | static Boolean |
2738 | ApplyModifier_IfElse(const char *mod, ApplyModifiersState *st) | | 2738 | ApplyModifier_IfElse(const char *mod, ApplyModifiersState *st) |
2739 | { | | 2739 | { |
2740 | Boolean value = FALSE; | | 2740 | Boolean value = FALSE; |
2741 | int cond_rc = 0; | | 2741 | int cond_rc = 0; |
2742 | VarEvalFlags then_eflags = st->eflags & ~VARE_WANTRES; | | 2742 | VarEvalFlags then_eflags = st->eflags & ~VARE_WANTRES; |
2743 | VarEvalFlags else_eflags = st->eflags & ~VARE_WANTRES; | | 2743 | VarEvalFlags else_eflags = st->eflags & ~VARE_WANTRES; |
2744 | | | 2744 | |
2745 | if (st->eflags & VARE_WANTRES) { | | 2745 | if (st->eflags & VARE_WANTRES) { |
2746 | cond_rc = Cond_EvalExpression(NULL, st->v->name, &value, 0, FALSE); | | 2746 | cond_rc = Cond_EvalExpression(NULL, st->v->name, &value, 0, FALSE); |
2747 | if (cond_rc != COND_INVALID && value) | | 2747 | if (cond_rc != COND_INVALID && value) |
2748 | then_eflags |= VARE_WANTRES; | | 2748 | then_eflags |= VARE_WANTRES; |
2749 | if (cond_rc != COND_INVALID && !value) | | 2749 | if (cond_rc != COND_INVALID && !value) |
2750 | else_eflags |= VARE_WANTRES; | | 2750 | else_eflags |= VARE_WANTRES; |
2751 | } | | 2751 | } |
2752 | | | 2752 | |
2753 | st->next = mod + 1; | | 2753 | st->next = mod + 1; |
2754 | char delim = ':'; | | 2754 | char delim = ':'; |
2755 | char *then_expr = ParseModifierPart(&st->next, delim, then_eflags, st->ctxt, | | 2755 | char *then_expr = ParseModifierPart(&st->next, delim, then_eflags, st->ctxt, |
2756 | NULL, NULL, NULL); | | 2756 | NULL, NULL, NULL); |
2757 | if (then_expr == NULL) { | | 2757 | if (then_expr == NULL) { |
2758 | st->missing_delim = delim; | | 2758 | st->missing_delim = delim; |
2759 | return FALSE; | | 2759 | return FALSE; |
2760 | } | | 2760 | } |
2761 | | | 2761 | |
2762 | delim = st->endc; /* BRCLOSE or PRCLOSE */ | | 2762 | delim = st->endc; /* BRCLOSE or PRCLOSE */ |
2763 | char *else_expr = ParseModifierPart(&st->next, delim, else_eflags, st->ctxt, | | 2763 | char *else_expr = ParseModifierPart(&st->next, delim, else_eflags, st->ctxt, |
2764 | NULL, NULL, NULL); | | 2764 | NULL, NULL, NULL); |
2765 | if (else_expr == NULL) { | | 2765 | if (else_expr == NULL) { |
2766 | st->missing_delim = delim; | | 2766 | st->missing_delim = delim; |
2767 | return FALSE; | | 2767 | return FALSE; |
2768 | } | | 2768 | } |
2769 | | | 2769 | |
2770 | st->next--; | | 2770 | st->next--; |
2771 | if (cond_rc == COND_INVALID) { | | 2771 | if (cond_rc == COND_INVALID) { |
2772 | Error("Bad conditional expression `%s' in %s?%s:%s", | | 2772 | Error("Bad conditional expression `%s' in %s?%s:%s", |
2773 | st->v->name, st->v->name, then_expr, else_expr); | | 2773 | st->v->name, st->v->name, then_expr, else_expr); |
2774 | return FALSE; | | 2774 | return FALSE; |
2775 | } | | 2775 | } |
2776 | | | 2776 | |
2777 | if (value) { | | 2777 | if (value) { |
2778 | st->newVal = then_expr; | | 2778 | st->newVal = then_expr; |
2779 | free(else_expr); | | 2779 | free(else_expr); |
2780 | } else { | | 2780 | } else { |
2781 | st->newVal = else_expr; | | 2781 | st->newVal = else_expr; |
2782 | free(then_expr); | | 2782 | free(then_expr); |
2783 | } | | 2783 | } |
2784 | if (st->v->flags & VAR_JUNK) | | 2784 | if (st->v->flags & VAR_JUNK) |
2785 | st->v->flags |= VAR_KEEP; | | 2785 | st->v->flags |= VAR_KEEP; |
2786 | return TRUE; | | 2786 | return TRUE; |
2787 | } | | 2787 | } |
2788 | | | 2788 | |
2789 | /* | | 2789 | /* |
2790 | * The ::= modifiers actually assign a value to the variable. | | 2790 | * The ::= modifiers actually assign a value to the variable. |
2791 | * Their main purpose is in supporting modifiers of .for loop | | 2791 | * Their main purpose is in supporting modifiers of .for loop |
2792 | * iterators and other obscure uses. They always expand to | | 2792 | * iterators and other obscure uses. They always expand to |
2793 | * nothing. In a target rule that would otherwise expand to an | | 2793 | * nothing. In a target rule that would otherwise expand to an |
2794 | * empty line they can be preceded with @: to keep make happy. | | 2794 | * empty line they can be preceded with @: to keep make happy. |
2795 | * Eg. | | 2795 | * Eg. |
2796 | * | | 2796 | * |
2797 | * foo: .USE | | 2797 | * foo: .USE |
2798 | * .for i in ${.TARGET} ${.TARGET:R}.gz | | 2798 | * .for i in ${.TARGET} ${.TARGET:R}.gz |
2799 | * @: ${t::=$i} | | 2799 | * @: ${t::=$i} |
2800 | * @echo blah ${t:T} | | 2800 | * @echo blah ${t:T} |
2801 | * .endfor | | 2801 | * .endfor |
2802 | * | | 2802 | * |
2803 | * ::=<str> Assigns <str> as the new value of variable. | | 2803 | * ::=<str> Assigns <str> as the new value of variable. |
2804 | * ::?=<str> Assigns <str> as value of variable if | | 2804 | * ::?=<str> Assigns <str> as value of variable if |
2805 | * it was not already set. | | 2805 | * it was not already set. |
2806 | * ::+=<str> Appends <str> to variable. | | 2806 | * ::+=<str> Appends <str> to variable. |
2807 | * ::!=<cmd> Assigns output of <cmd> as the new value of | | 2807 | * ::!=<cmd> Assigns output of <cmd> as the new value of |
2808 | * variable. | | 2808 | * variable. |
2809 | */ | | 2809 | */ |
2810 | static int | | 2810 | static int |
2811 | ApplyModifier_Assign(const char *mod, ApplyModifiersState *st) | | 2811 | ApplyModifier_Assign(const char *mod, ApplyModifiersState *st) |
2812 | { | | 2812 | { |
2813 | const char *op = mod + 1; | | 2813 | const char *op = mod + 1; |
2814 | if (!(op[0] == '=' || | | 2814 | if (!(op[0] == '=' || |
2815 | (op[1] == '=' && | | 2815 | (op[1] == '=' && |
2816 | (op[0] == '!' || op[0] == '+' || op[0] == '?')))) | | 2816 | (op[0] == '!' || op[0] == '+' || op[0] == '?')))) |
2817 | return 'd'; /* "::<unrecognised>" */ | | 2817 | return 'd'; /* "::<unrecognised>" */ |
2818 | | | 2818 | |
2819 | GNode *v_ctxt; /* context where v belongs */ | | 2819 | GNode *v_ctxt; /* context where v belongs */ |
2820 | | | 2820 | |
2821 | if (st->v->name[0] == 0) | | 2821 | if (st->v->name[0] == 0) |
2822 | return 'b'; | | 2822 | return 'b'; |
2823 | | | 2823 | |
2824 | v_ctxt = st->ctxt; | | 2824 | v_ctxt = st->ctxt; |
2825 | char *sv_name = NULL; | | 2825 | char *sv_name = NULL; |
2826 | if (st->v->flags & VAR_JUNK) { | | 2826 | if (st->v->flags & VAR_JUNK) { |
2827 | /* | | 2827 | /* |
2828 | * We need to bmake_strdup() it incase ParseModifierPart() recurses. | | 2828 | * We need to bmake_strdup() it incase ParseModifierPart() recurses. |
2829 | */ | | 2829 | */ |
2830 | sv_name = st->v->name; | | 2830 | sv_name = st->v->name; |
2831 | st->v->name = bmake_strdup(st->v->name); | | 2831 | st->v->name = bmake_strdup(st->v->name); |
2832 | } else if (st->ctxt != VAR_GLOBAL) { | | 2832 | } else if (st->ctxt != VAR_GLOBAL) { |
2833 | Var *gv = VarFind(st->v->name, st->ctxt, 0); | | 2833 | Var *gv = VarFind(st->v->name, st->ctxt, 0); |
2834 | if (gv == NULL) | | 2834 | if (gv == NULL) |
2835 | v_ctxt = VAR_GLOBAL; | | 2835 | v_ctxt = VAR_GLOBAL; |
2836 | else | | 2836 | else |
2837 | VarFreeEnv(gv, TRUE); | | 2837 | VarFreeEnv(gv, TRUE); |
2838 | } | | 2838 | } |
2839 | | | 2839 | |
2840 | switch (op[0]) { | | 2840 | switch (op[0]) { |
2841 | case '+': | | 2841 | case '+': |
2842 | case '?': | | 2842 | case '?': |
2843 | case '!': | | 2843 | case '!': |
2844 | st->next = mod + 3; | | 2844 | st->next = mod + 3; |
2845 | break; | | 2845 | break; |
2846 | default: | | 2846 | default: |
2847 | st->next = mod + 2; | | 2847 | st->next = mod + 2; |
2848 | break; | | 2848 | break; |
2849 | } | | 2849 | } |
2850 | | | 2850 | |
2851 | char delim = st->startc == PROPEN ? PRCLOSE : BRCLOSE; | | 2851 | char delim = st->startc == PROPEN ? PRCLOSE : BRCLOSE; |
2852 | char *val = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, | | 2852 | char *val = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, |
2853 | NULL, NULL, NULL); | | 2853 | NULL, NULL, NULL); |
2854 | if (st->v->flags & VAR_JUNK) { | | 2854 | if (st->v->flags & VAR_JUNK) { |
2855 | /* restore original name */ | | 2855 | /* restore original name */ |
2856 | free(st->v->name); | | 2856 | free(st->v->name); |
2857 | st->v->name = sv_name; | | 2857 | st->v->name = sv_name; |
2858 | } | | 2858 | } |
2859 | if (val == NULL) { | | 2859 | if (val == NULL) { |
2860 | st->missing_delim = delim; | | 2860 | st->missing_delim = delim; |
2861 | return 'c'; | | 2861 | return 'c'; |
2862 | } | | 2862 | } |
2863 | | | 2863 | |
2864 | st->next--; | | 2864 | st->next--; |
2865 | | | 2865 | |
2866 | if (st->eflags & VARE_WANTRES) { | | 2866 | if (st->eflags & VARE_WANTRES) { |
2867 | switch (op[0]) { | | 2867 | switch (op[0]) { |
2868 | case '+': | | 2868 | case '+': |
2869 | Var_Append(st->v->name, val, v_ctxt); | | 2869 | Var_Append(st->v->name, val, v_ctxt); |
2870 | break; | | 2870 | break; |
2871 | case '!': { | | 2871 | case '!': { |
2872 | const char *emsg; | | 2872 | const char *emsg; |
2873 | st->newVal = Cmd_Exec(val, &emsg); | | 2873 | st->newVal = Cmd_Exec(val, &emsg); |
2874 | if (emsg) | | 2874 | if (emsg) |
2875 | Error(emsg, st->val); | | 2875 | Error(emsg, st->val); |
2876 | else | | 2876 | else |
2877 | Var_Set(st->v->name, st->newVal, v_ctxt); | | 2877 | Var_Set(st->v->name, st->newVal, v_ctxt); |
2878 | free(st->newVal); | | 2878 | free(st->newVal); |
2879 | break; | | 2879 | break; |
2880 | } | | 2880 | } |
2881 | case '?': | | 2881 | case '?': |
2882 | if (!(st->v->flags & VAR_JUNK)) | | 2882 | if (!(st->v->flags & VAR_JUNK)) |
2883 | break; | | 2883 | break; |
2884 | /* FALLTHROUGH */ | | 2884 | /* FALLTHROUGH */ |
2885 | default: | | 2885 | default: |
2886 | Var_Set(st->v->name, val, v_ctxt); | | 2886 | Var_Set(st->v->name, val, v_ctxt); |
2887 | break; | | 2887 | break; |
2888 | } | | 2888 | } |
2889 | } | | 2889 | } |
2890 | free(val); | | 2890 | free(val); |
2891 | st->newVal = varNoError; | | 2891 | st->newVal = varNoError; |
2892 | return 0; | | 2892 | return 0; |
2893 | } | | 2893 | } |
2894 | | | 2894 | |
2895 | /* remember current value */ | | 2895 | /* remember current value */ |
2896 | static Boolean | | 2896 | static Boolean |
2897 | ApplyModifier_Remember(const char *mod, ApplyModifiersState *st) | | 2897 | ApplyModifier_Remember(const char *mod, ApplyModifiersState *st) |
2898 | { | | 2898 | { |
2899 | if (!ModMatchEq(mod, "_", st->endc)) { | | 2899 | if (!ModMatchEq(mod, "_", st->endc)) { |
2900 | st->next = mod + 1; | | 2900 | st->next = mod + 1; |
2901 | return FALSE; | | 2901 | return FALSE; |
2902 | } | | 2902 | } |
2903 | | | 2903 | |
2904 | if (mod[1] == '=') { | | 2904 | if (mod[1] == '=') { |
2905 | size_t n = strcspn(mod + 2, ":)}"); | | 2905 | size_t n = strcspn(mod + 2, ":)}"); |
2906 | char *name = bmake_strndup(mod + 2, n); | | 2906 | char *name = bmake_strndup(mod + 2, n); |
2907 | Var_Set(name, st->val, st->ctxt); | | 2907 | Var_Set(name, st->val, st->ctxt); |
2908 | free(name); | | 2908 | free(name); |
2909 | st->next = mod + 2 + n; | | 2909 | st->next = mod + 2 + n; |
2910 | } else { | | 2910 | } else { |
2911 | Var_Set("_", st->val, st->ctxt); | | 2911 | Var_Set("_", st->val, st->ctxt); |
2912 | st->next = mod + 1; | | 2912 | st->next = mod + 1; |
2913 | } | | 2913 | } |
2914 | st->newVal = st->val; | | 2914 | st->newVal = st->val; |
2915 | return TRUE; | | 2915 | return TRUE; |
2916 | } | | 2916 | } |
2917 | | | 2917 | |
2918 | #ifdef SYSVVARSUB | | 2918 | #ifdef SYSVVARSUB |
2919 | /* :from=to */ | | 2919 | /* :from=to */ |
2920 | static int | | 2920 | static int |
2921 | ApplyModifier_SysV(const char *mod, ApplyModifiersState *st) | | 2921 | ApplyModifier_SysV(const char *mod, ApplyModifiersState *st) |
2922 | { | | 2922 | { |
2923 | Boolean eqFound = FALSE; | | 2923 | Boolean eqFound = FALSE; |
2924 | | | 2924 | |
2925 | /* | | 2925 | /* |
2926 | * First we make a pass through the string trying | | 2926 | * First we make a pass through the string trying |
2927 | * to verify it is a SYSV-make-style translation: | | 2927 | * to verify it is a SYSV-make-style translation: |
2928 | * it must be: <string1>=<string2>) | | 2928 | * it must be: <string1>=<string2>) |
2929 | */ | | 2929 | */ |
2930 | st->next = mod; | | 2930 | st->next = mod; |
2931 | int nest = 1; | | 2931 | int nest = 1; |
2932 | while (*st->next != '\0' && nest > 0) { | | 2932 | while (*st->next != '\0' && nest > 0) { |
2933 | if (*st->next == '=') { | | 2933 | if (*st->next == '=') { |
2934 | eqFound = TRUE; | | 2934 | eqFound = TRUE; |
2935 | /* continue looking for st->endc */ | | 2935 | /* continue looking for st->endc */ |
2936 | } else if (*st->next == st->endc) | | 2936 | } else if (*st->next == st->endc) |
2937 | nest--; | | 2937 | nest--; |
2938 | else if (*st->next == st->startc) | | 2938 | else if (*st->next == st->startc) |
2939 | nest++; | | 2939 | nest++; |
2940 | if (nest > 0) | | 2940 | if (nest > 0) |
2941 | st->next++; | | 2941 | st->next++; |
2942 | } | | 2942 | } |
2943 | if (*st->next != st->endc || !eqFound) | | 2943 | if (*st->next != st->endc || !eqFound) |
2944 | return 0; | | 2944 | return 0; |
2945 | | | 2945 | |
2946 | char delim = '='; | | 2946 | char delim = '='; |
2947 | st->next = mod; | | 2947 | st->next = mod; |
2948 | char *lhs = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, | | 2948 | char *lhs = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, |
2949 | NULL, NULL, NULL); | | 2949 | NULL, NULL, NULL); |
2950 | if (lhs == NULL) { | | 2950 | if (lhs == NULL) { |
2951 | st->missing_delim = delim; | | 2951 | st->missing_delim = delim; |
2952 | return 'c'; | | 2952 | return 'c'; |
2953 | } | | 2953 | } |
2954 | | | 2954 | |
2955 | delim = st->endc; | | 2955 | delim = st->endc; |
2956 | char *rhs = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, | | 2956 | char *rhs = ParseModifierPart(&st->next, delim, st->eflags, st->ctxt, |
2957 | NULL, NULL, NULL); | | 2957 | NULL, NULL, NULL); |
2958 | if (rhs == NULL) { | | 2958 | if (rhs == NULL) { |
2959 | st->missing_delim = delim; | | 2959 | st->missing_delim = delim; |
2960 | return 'c'; | | 2960 | return 'c'; |
2961 | } | | 2961 | } |
2962 | | | 2962 | |
2963 | /* | | 2963 | /* |
2964 | * SYSV modifications happen through the whole | | 2964 | * SYSV modifications happen through the whole |
2965 | * string. Note the pattern is anchored at the end. | | 2965 | * string. Note the pattern is anchored at the end. |
2966 | */ | | 2966 | */ |
2967 | st->next--; | | 2967 | st->next--; |
2968 | if (lhs[0] == '\0' && *st->val == '\0') { | | 2968 | if (lhs[0] == '\0' && *st->val == '\0') { |
2969 | st->newVal = st->val; /* special case */ | | 2969 | st->newVal = st->val; /* special case */ |
2970 | } else { | | 2970 | } else { |
2971 | ModifyWord_SYSVSubstArgs args = { st->ctxt, lhs, rhs }; | | 2971 | ModifyWord_SYSVSubstArgs args = { st->ctxt, lhs, rhs }; |
2972 | st->newVal = ModifyWords(st->ctxt, st->sep, st->oneBigWord, st->val, | | 2972 | st->newVal = ModifyWords(st->ctxt, st->sep, st->oneBigWord, st->val, |
2973 | ModifyWord_SYSVSubst, &args); | | 2973 | ModifyWord_SYSVSubst, &args); |
2974 | } | | 2974 | } |
2975 | free(lhs); | | 2975 | free(lhs); |
2976 | free(rhs); | | 2976 | free(rhs); |
2977 | return '='; | | 2977 | return '='; |
2978 | } | | 2978 | } |
2979 | #endif | | 2979 | #endif |
2980 | | | 2980 | |
2981 | /* | | 2981 | /* |
2982 | * Now we need to apply any modifiers the user wants applied. | | 2982 | * Now we need to apply any modifiers the user wants applied. |
2983 | * These are: | | 2983 | * These are: |
2984 | * :M<pattern> words which match the given <pattern>. | | 2984 | * :M<pattern> words which match the given <pattern>. |
2985 | * <pattern> is of the standard file | | 2985 | * <pattern> is of the standard file |
2986 | * wildcarding form. | | 2986 | * wildcarding form. |
2987 | * :N<pattern> words which do not match the given <pattern>. | | 2987 | * :N<pattern> words which do not match the given <pattern>. |
2988 | * :S<d><pat1><d><pat2><d>[1gW] | | 2988 | * :S<d><pat1><d><pat2><d>[1gW] |
2989 | * Substitute <pat2> for <pat1> in the value | | 2989 | * Substitute <pat2> for <pat1> in the value |
2990 | * :C<d><pat1><d><pat2><d>[1gW] | | 2990 | * :C<d><pat1><d><pat2><d>[1gW] |
2991 | * Substitute <pat2> for regex <pat1> in the value | | 2991 | * Substitute <pat2> for regex <pat1> in the value |
2992 | * :H Substitute the head of each word | | 2992 | * :H Substitute the head of each word |
2993 | * :T Substitute the tail of each word | | 2993 | * :T Substitute the tail of each word |
2994 | * :E Substitute the extension (minus '.') of | | 2994 | * :E Substitute the extension (minus '.') of |
2995 | * each word | | 2995 | * each word |
2996 | * :R Substitute the root of each word | | 2996 | * :R Substitute the root of each word |
2997 | * (pathname minus the suffix). | | 2997 | * (pathname minus the suffix). |
2998 | * :O ("Order") Alphabeticaly sort words in variable. | | 2998 | * :O ("Order") Alphabeticaly sort words in variable. |
2999 | * :Ox ("intermiX") Randomize words in variable. | | 2999 | * :Ox ("intermiX") Randomize words in variable. |
3000 | * :u ("uniq") Remove adjacent duplicate words. | | 3000 | * :u ("uniq") Remove adjacent duplicate words. |
3001 | * :tu Converts the variable contents to uppercase. | | 3001 | * :tu Converts the variable contents to uppercase. |
3002 | * :tl Converts the variable contents to lowercase. | | 3002 | * :tl Converts the variable contents to lowercase. |
3003 | * :ts[c] Sets varSpace - the char used to | | 3003 | * :ts[c] Sets varSpace - the char used to |
3004 | * separate words to 'c'. If 'c' is | | 3004 | * separate words to 'c'. If 'c' is |
3005 | * omitted then no separation is used. | | 3005 | * omitted then no separation is used. |
3006 | * :tW Treat the variable contents as a single | | 3006 | * :tW Treat the variable contents as a single |
3007 | * word, even if it contains spaces. | | 3007 | * word, even if it contains spaces. |
3008 | * (Mnemonic: one big 'W'ord.) | | 3008 | * (Mnemonic: one big 'W'ord.) |
3009 | * :tw Treat the variable contents as multiple | | 3009 | * :tw Treat the variable contents as multiple |
3010 | * space-separated words. | | 3010 | * space-separated words. |
3011 | * (Mnemonic: many small 'w'ords.) | | 3011 | * (Mnemonic: many small 'w'ords.) |
3012 | * :[index] Select a single word from the value. | | 3012 | * :[index] Select a single word from the value. |
3013 | * :[start..end] Select multiple words from the value. | | 3013 | * :[start..end] Select multiple words from the value. |
3014 | * :[*] or :[0] Select the entire value, as a single | | 3014 | * :[*] or :[0] Select the entire value, as a single |
3015 | * word. Equivalent to :tW. | | 3015 | * word. Equivalent to :tW. |
3016 | * :[@] Select the entire value, as multiple | | 3016 | * :[@] Select the entire value, as multiple |
3017 | * words. Undoes the effect of :[*]. | | 3017 | * words. Undoes the effect of :[*]. |
3018 | * Equivalent to :tw. | | 3018 | * Equivalent to :tw. |
3019 | * :[#] Returns the number of words in the value. | | 3019 | * :[#] Returns the number of words in the value. |
3020 | * | | 3020 | * |
3021 | * :?<true-value>:<false-value> | | 3021 | * :?<true-value>:<false-value> |
3022 | * If the variable evaluates to true, return | | 3022 | * If the variable evaluates to true, return |
3023 | * true value, else return the second value. | | 3023 | * true value, else return the second value. |
3024 | * :lhs=rhs Like :S, but the rhs goes to the end of | | 3024 | * :lhs=rhs Like :S, but the rhs goes to the end of |
3025 | * the invocation. | | 3025 | * the invocation. |
3026 | * :sh Treat the current value as a command | | 3026 | * :sh Treat the current value as a command |
3027 | * to be run, new value is its output. | | 3027 | * to be run, new value is its output. |
3028 | * The following added so we can handle ODE makefiles. | | 3028 | * The following added so we can handle ODE makefiles. |
3029 | * :@<tmpvar>@<newval>@ | | 3029 | * :@<tmpvar>@<newval>@ |
3030 | * Assign a temporary local variable <tmpvar> | | 3030 | * Assign a temporary local variable <tmpvar> |
3031 | * to the current value of each word in turn | | 3031 | * to the current value of each word in turn |
3032 | * and replace each word with the result of | | 3032 | * and replace each word with the result of |
3033 | * evaluating <newval> | | 3033 | * evaluating <newval> |
3034 | * :D<newval> Use <newval> as value if variable defined | | 3034 | * :D<newval> Use <newval> as value if variable defined |
3035 | * :U<newval> Use <newval> as value if variable undefined | | 3035 | * :U<newval> Use <newval> as value if variable undefined |
3036 | * :L Use the name of the variable as the value. | | 3036 | * :L Use the name of the variable as the value. |
3037 | * :P Use the path of the node that has the same | | 3037 | * :P Use the path of the node that has the same |
3038 | * name as the variable as the value. This | | 3038 | * name as the variable as the value. This |
3039 | * basically includes an implied :L so that | | 3039 | * basically includes an implied :L so that |
3040 | * the common method of refering to the path | | 3040 | * the common method of refering to the path |
3041 | * of your dependent 'x' in a rule is to use | | 3041 | * of your dependent 'x' in a rule is to use |
3042 | * the form '${x:P}'. | | 3042 | * the form '${x:P}'. |
3043 | * :!<cmd>! Run cmd much the same as :sh run's the | | 3043 | * :!<cmd>! Run cmd much the same as :sh run's the |
3044 | * current value of the variable. | | 3044 | * current value of the variable. |
3045 | * Assignment operators (see ApplyModifier_Assign). | | 3045 | * Assignment operators (see ApplyModifier_Assign). |
3046 | */ | | 3046 | */ |
3047 | static char * | | 3047 | static char * |
3048 | ApplyModifiers(char *val, const char * const tstr, | | 3048 | ApplyModifiers(char *val, const char * const tstr, |
3049 | int const startc, int const endc, | | 3049 | int const startc, int const endc, |
3050 | Var * const v, GNode * const ctxt, VarEvalFlags const eflags, | | 3050 | Var * const v, GNode * const ctxt, VarEvalFlags const eflags, |
3051 | int * const lengthPtr, void ** const freePtr) | | 3051 | int * const lengthPtr, void ** const freePtr) |
3052 | { | | 3052 | { |
3053 | ApplyModifiersState st = { | | 3053 | ApplyModifiersState st = { |
3054 | startc, endc, v, ctxt, eflags, | | 3054 | startc, endc, v, ctxt, eflags, |
3055 | val, NULL, NULL, '\0', ' ', FALSE | | 3055 | val, NULL, NULL, '\0', ' ', FALSE |
3056 | }; | | 3056 | }; |
3057 | | | 3057 | |
3058 | const char *p = tstr; | | 3058 | const char *p = tstr; |
3059 | while (*p != '\0' && *p != endc) { | | 3059 | while (*p != '\0' && *p != endc) { |
3060 | | | 3060 | |
3061 | if (*p == '$') { | | 3061 | if (*p == '$') { |
3062 | /* | | 3062 | /* |
3063 | * We may have some complex modifiers in a variable. | | 3063 | * We may have some complex modifiers in a variable. |
3064 | */ | | 3064 | */ |
3065 | void *freeIt; | | 3065 | void *freeIt; |
3066 | const char *rval; | | 3066 | const char *rval; |
3067 | int rlen; | | 3067 | int rlen; |
3068 | int c; | | 3068 | int c; |
3069 | | | 3069 | |
3070 | rval = Var_Parse(p, st.ctxt, st.eflags, &rlen, &freeIt); | | 3070 | rval = Var_Parse(p, st.ctxt, st.eflags, &rlen, &freeIt); |
3071 | | | 3071 | |
3072 | /* | | 3072 | /* |
3073 | * If we have not parsed up to st.endc or ':', | | 3073 | * If we have not parsed up to st.endc or ':', |
3074 | * we are not interested. | | 3074 | * we are not interested. |
3075 | */ | | 3075 | */ |
3076 | if (rval != NULL && *rval && | | 3076 | if (rval != NULL && *rval && |
3077 | (c = p[rlen]) != '\0' && | | 3077 | (c = p[rlen]) != '\0' && |
3078 | c != ':' && | | 3078 | c != ':' && |
3079 | c != st.endc) { | | 3079 | c != st.endc) { |
3080 | free(freeIt); | | 3080 | free(freeIt); |
3081 | goto apply_mods; | | 3081 | goto apply_mods; |
3082 | } | | 3082 | } |
3083 | | | 3083 | |
3084 | if (DEBUG(VAR)) { | | 3084 | if (DEBUG(VAR)) { |
3085 | fprintf(debug_file, "Got '%s' from '%.*s'%.*s\n", | | 3085 | fprintf(debug_file, "Got '%s' from '%.*s'%.*s\n", |
3086 | rval, rlen, p, rlen, p + rlen); | | 3086 | rval, rlen, p, rlen, p + rlen); |
3087 | } | | 3087 | } |
3088 | | | 3088 | |
3089 | p += rlen; | | 3089 | p += rlen; |
3090 | | | 3090 | |
3091 | if (rval != NULL && *rval) { | | 3091 | if (rval != NULL && *rval) { |
3092 | int used; | | 3092 | int used; |
3093 | | | 3093 | |
3094 | st.val = ApplyModifiers(st.val, rval, 0, 0, st.v, | | 3094 | st.val = ApplyModifiers(st.val, rval, 0, 0, st.v, |
3095 | st.ctxt, st.eflags, &used, freePtr); | | 3095 | st.ctxt, st.eflags, &used, freePtr); |
3096 | if (st.val == var_Error | | 3096 | if (st.val == var_Error |
3097 | || (st.val == varNoError && (st.eflags & VARE_UNDEFERR) == 0) | | 3097 | || (st.val == varNoError && (st.eflags & VARE_UNDEFERR) == 0) |
3098 | || strlen(rval) != (size_t) used) { | | 3098 | || strlen(rval) != (size_t) used) { |
3099 | free(freeIt); | | 3099 | free(freeIt); |
3100 | goto out; /* error already reported */ | | 3100 | goto out; /* error already reported */ |
3101 | } | | 3101 | } |
3102 | } | | 3102 | } |
3103 | free(freeIt); | | 3103 | free(freeIt); |
3104 | if (*p == ':') | | 3104 | if (*p == ':') |
3105 | p++; | | 3105 | p++; |
3106 | else if (*p == '\0' && endc != '\0') { | | 3106 | else if (*p == '\0' && endc != '\0') { |
3107 | Error("Unclosed variable specification after complex " | | 3107 | Error("Unclosed variable specification after complex " |
3108 | "modifier (expecting '%c') for %s", st.endc, st.v->name); | | 3108 | "modifier (expecting '%c') for %s", st.endc, st.v->name); |
3109 | goto out; | | 3109 | goto out; |
3110 | } | | 3110 | } |
3111 | continue; | | 3111 | continue; |
3112 | } | | 3112 | } |
3113 | apply_mods: | | 3113 | apply_mods: |
3114 | if (DEBUG(VAR)) { | | 3114 | if (DEBUG(VAR)) { |
3115 | fprintf(debug_file, "Applying[%s] :%c to \"%s\"\n", st.v->name, | | 3115 | fprintf(debug_file, "Applying[%s] :%c to \"%s\"\n", st.v->name, |
3116 | *p, st.val); | | 3116 | *p, st.val); |
3117 | } | | 3117 | } |
3118 | st.newVal = var_Error; | | 3118 | st.newVal = var_Error; |
3119 | char modifier = *p; | | 3119 | char modifier = *p; |
3120 | switch (modifier) { | | 3120 | switch (modifier) { |
3121 | case ':': | | 3121 | case ':': |
3122 | { | | 3122 | { |
3123 | int res = ApplyModifier_Assign(p, &st); | | 3123 | int res = ApplyModifier_Assign(p, &st); |
3124 | if (res == 'b') | | 3124 | if (res == 'b') |
3125 | goto bad_modifier; | | 3125 | goto bad_modifier; |
3126 | if (res == 'c') | | 3126 | if (res == 'c') |
3127 | goto cleanup; | | 3127 | goto cleanup; |
3128 | if (res == 'd') | | 3128 | if (res == 'd') |
3129 | goto default_case; | | 3129 | goto default_case; |
3130 | break; | | 3130 | break; |
3131 | } | | 3131 | } |
3132 | case '@': | | 3132 | case '@': |
3133 | if (!ApplyModifier_Loop(p, &st)) | | 3133 | if (!ApplyModifier_Loop(p, &st)) |
3134 | goto cleanup; | | 3134 | goto cleanup; |
3135 | break; | | 3135 | break; |
3136 | case '_': | | 3136 | case '_': |
3137 | if (!ApplyModifier_Remember(p, &st)) | | 3137 | if (!ApplyModifier_Remember(p, &st)) |
3138 | goto default_case; | | 3138 | goto default_case; |
3139 | break; | | 3139 | break; |
3140 | case 'D': | | 3140 | case 'D': |
3141 | case 'U': | | 3141 | case 'U': |
3142 | ApplyModifier_Defined(p, &st); | | 3142 | ApplyModifier_Defined(p, &st); |
3143 | break; | | 3143 | break; |
3144 | case 'L': | | 3144 | case 'L': |
3145 | { | | 3145 | { |
3146 | if (st.v->flags & VAR_JUNK) | | 3146 | if (st.v->flags & VAR_JUNK) |
3147 | st.v->flags |= VAR_KEEP; | | 3147 | st.v->flags |= VAR_KEEP; |
3148 | st.newVal = bmake_strdup(st.v->name); | | 3148 | st.newVal = bmake_strdup(st.v->name); |
3149 | st.next = p + 1; | | 3149 | st.next = p + 1; |
3150 | break; | | 3150 | break; |
3151 | } | | 3151 | } |
3152 | case 'P': | | 3152 | case 'P': |
3153 | ApplyModifier_Path(p, &st); | | 3153 | ApplyModifier_Path(p, &st); |
3154 | break; | | 3154 | break; |
3155 | case '!': | | 3155 | case '!': |
3156 | if (!ApplyModifier_Exclam(p, &st)) | | 3156 | if (!ApplyModifier_Exclam(p, &st)) |
3157 | goto cleanup; | | 3157 | goto cleanup; |
3158 | break; | | 3158 | break; |
3159 | case '[': | | 3159 | case '[': |
3160 | { | | 3160 | { |
3161 | int res = ApplyModifier_Words(p, &st); | | 3161 | int res = ApplyModifier_Words(p, &st); |
3162 | if (res == 'b') | | 3162 | if (res == 'b') |
3163 | goto bad_modifier; | | 3163 | goto bad_modifier; |
3164 | if (res == 'c') | | 3164 | if (res == 'c') |
3165 | goto cleanup; | | 3165 | goto cleanup; |
3166 | break; | | 3166 | break; |
3167 | } | | 3167 | } |
3168 | case 'g': | | 3168 | case 'g': |
3169 | if (!ApplyModifier_Gmtime(p, &st)) | | 3169 | if (!ApplyModifier_Gmtime(p, &st)) |
3170 | goto default_case; | | 3170 | goto default_case; |
3171 | break; | | 3171 | break; |
3172 | case 'h': | | 3172 | case 'h': |
3173 | if (!ApplyModifier_Hash(p, &st)) | | 3173 | if (!ApplyModifier_Hash(p, &st)) |
3174 | goto default_case; | | 3174 | goto default_case; |
3175 | break; | | 3175 | break; |
3176 | case 'l': | | 3176 | case 'l': |
3177 | if (!ApplyModifier_Localtime(p, &st)) | | 3177 | if (!ApplyModifier_Localtime(p, &st)) |
3178 | goto default_case; | | 3178 | goto default_case; |
3179 | break; | | 3179 | break; |
3180 | case 't': | | 3180 | case 't': |
3181 | if (!ApplyModifier_To(p, &st)) | | 3181 | if (!ApplyModifier_To(p, &st)) |
3182 | goto bad_modifier; | | 3182 | goto bad_modifier; |
3183 | break; | | 3183 | break; |
3184 | case 'N': | | 3184 | case 'N': |
3185 | case 'M': | | 3185 | case 'M': |
3186 | ApplyModifier_Match(p, &st); | | 3186 | ApplyModifier_Match(p, &st); |
3187 | break; | | 3187 | break; |
3188 | case 'S': | | 3188 | case 'S': |
3189 | if (!ApplyModifier_Subst(p, &st)) | | 3189 | if (!ApplyModifier_Subst(p, &st)) |
3190 | goto cleanup; | | 3190 | goto cleanup; |
3191 | break; | | 3191 | break; |
3192 | case '?': | | 3192 | case '?': |
3193 | if (!ApplyModifier_IfElse(p, &st)) | | 3193 | if (!ApplyModifier_IfElse(p, &st)) |
3194 | goto cleanup; | | 3194 | goto cleanup; |
3195 | break; | | 3195 | break; |
3196 | #ifndef NO_REGEX | | 3196 | #ifndef NO_REGEX |
3197 | case 'C': | | 3197 | case 'C': |
3198 | if (!ApplyModifier_Regex(p, &st)) | | 3198 | if (!ApplyModifier_Regex(p, &st)) |
3199 | goto cleanup; | | 3199 | goto cleanup; |
3200 | break; | | 3200 | break; |
3201 | #endif | | 3201 | #endif |
3202 | case 'q': | | 3202 | case 'q': |
3203 | case 'Q': | | 3203 | case 'Q': |
3204 | if (p[1] == st.endc || p[1] == ':') { | | 3204 | if (p[1] == st.endc || p[1] == ':') { |
3205 | st.newVal = VarQuote(st.val, modifier == 'q'); | | 3205 | st.newVal = VarQuote(st.val, modifier == 'q'); |
3206 | st.next = p + 1; | | 3206 | st.next = p + 1; |
3207 | break; | | 3207 | break; |
3208 | } | | 3208 | } |
3209 | goto default_case; | | 3209 | goto default_case; |
3210 | case 'T': | | 3210 | case 'T': |
3211 | if (p[1] == st.endc || p[1] == ':') { | | 3211 | if (p[1] == st.endc || p[1] == ':') { |
3212 | st.newVal = ModifyWords(st.ctxt, st.sep, st.oneBigWord, | | 3212 | st.newVal = ModifyWords(st.ctxt, st.sep, st.oneBigWord, |
3213 | st.val, ModifyWord_Tail, NULL); | | 3213 | st.val, ModifyWord_Tail, NULL); |
3214 | st.next = p + 1; | | 3214 | st.next = p + 1; |
3215 | break; | | 3215 | break; |
3216 | } | | 3216 | } |
3217 | goto default_case; | | 3217 | goto default_case; |
3218 | case 'H': | | 3218 | case 'H': |
3219 | if (p[1] == st.endc || p[1] == ':') { | | 3219 | if (p[1] == st.endc || p[1] == ':') { |
3220 | st.newVal = ModifyWords(st.ctxt, st.sep, st.oneBigWord, | | 3220 | st.newVal = ModifyWords(st.ctxt, st.sep, st.oneBigWord, |
3221 | st.val, ModifyWord_Head, NULL); | | 3221 | st.val, ModifyWord_Head, NULL); |
3222 | st.next = p + 1; | | 3222 | st.next = p + 1; |
3223 | break; | | 3223 | break; |
3224 | } | | 3224 | } |
3225 | goto default_case; | | 3225 | goto default_case; |
3226 | case 'E': | | 3226 | case 'E': |
3227 | if (p[1] == st.endc || p[1] == ':') { | | 3227 | if (p[1] == st.endc || p[1] == ':') { |
3228 | st.newVal = ModifyWords(st.ctxt, st.sep, st.oneBigWord, | | 3228 | st.newVal = ModifyWords(st.ctxt, st.sep, st.oneBigWord, |
3229 | st.val, ModifyWord_Suffix, NULL); | | 3229 | st.val, ModifyWord_Suffix, NULL); |
3230 | st.next = p + 1; | | 3230 | st.next = p + 1; |
3231 | break; | | 3231 | break; |
3232 | } | | 3232 | } |
3233 | goto default_case; | | 3233 | goto default_case; |
3234 | case 'R': | | 3234 | case 'R': |
3235 | if (p[1] == st.endc || p[1] == ':') { | | 3235 | if (p[1] == st.endc || p[1] == ':') { |
3236 | st.newVal = ModifyWords(st.ctxt, st.sep, st.oneBigWord, | | 3236 | st.newVal = ModifyWords(st.ctxt, st.sep, st.oneBigWord, |
3237 | st.val, ModifyWord_Root, NULL); | | 3237 | st.val, ModifyWord_Root, NULL); |
3238 | st.next = p + 1; | | 3238 | st.next = p + 1; |
3239 | break; | | 3239 | break; |
3240 | } | | 3240 | } |
3241 | goto default_case; | | 3241 | goto default_case; |
3242 | case 'r': | | 3242 | case 'r': |
3243 | if (!ApplyModifier_Range(p, &st)) | | 3243 | if (!ApplyModifier_Range(p, &st)) |
3244 | goto default_case; | | 3244 | goto default_case; |
3245 | break; | | 3245 | break; |
3246 | case 'O': | | 3246 | case 'O': |
3247 | if (!ApplyModifier_Order(p, &st)) | | 3247 | if (!ApplyModifier_Order(p, &st)) |
3248 | goto bad_modifier; | | 3248 | goto bad_modifier; |
3249 | break; | | 3249 | break; |
3250 | case 'u': | | 3250 | case 'u': |
3251 | if (p[1] == st.endc || p[1] == ':') { | | 3251 | if (p[1] == st.endc || p[1] == ':') { |
3252 | st.newVal = VarUniq(st.val); | | 3252 | st.newVal = VarUniq(st.val); |
3253 | st.next = p + 1; | | 3253 | st.next = p + 1; |
3254 | break; | | 3254 | break; |
3255 | } | | 3255 | } |
3256 | goto default_case; | | 3256 | goto default_case; |
3257 | #ifdef SUNSHCMD | | 3257 | #ifdef SUNSHCMD |
3258 | case 's': | | 3258 | case 's': |
3259 | if (p[1] == 'h' && (p[2] == st.endc || p[2] == ':')) { | | 3259 | if (p[1] == 'h' && (p[2] == st.endc || p[2] == ':')) { |
3260 | const char *emsg; | | 3260 | const char *emsg; |
3261 | if (st.eflags & VARE_WANTRES) { | | 3261 | if (st.eflags & VARE_WANTRES) { |
3262 | st.newVal = Cmd_Exec(st.val, &emsg); | | 3262 | st.newVal = Cmd_Exec(st.val, &emsg); |
3263 | if (emsg) | | 3263 | if (emsg) |
3264 | Error(emsg, st.val); | | 3264 | Error(emsg, st.val); |
3265 | } else | | 3265 | } else |
3266 | st.newVal = varNoError; | | 3266 | st.newVal = varNoError; |
3267 | st.next = p + 2; | | 3267 | st.next = p + 2; |
3268 | break; | | 3268 | break; |
3269 | } | | 3269 | } |
3270 | goto default_case; | | 3270 | goto default_case; |
3271 | #endif | | 3271 | #endif |
3272 | default: | | 3272 | default: |
3273 | default_case: | | 3273 | default_case: |
3274 | { | | 3274 | { |
3275 | #ifdef SYSVVARSUB | | 3275 | #ifdef SYSVVARSUB |
3276 | int res = ApplyModifier_SysV(p, &st); | | 3276 | int res = ApplyModifier_SysV(p, &st); |
3277 | if (res == 'c') | | 3277 | if (res == 'c') |
3278 | goto cleanup; | | 3278 | goto cleanup; |
3279 | if (res != '=') | | 3279 | if (res != '=') |
3280 | #endif | | 3280 | #endif |
3281 | { | | 3281 | { |
3282 | Error("Unknown modifier '%c'", *p); | | 3282 | Error("Unknown modifier '%c'", *p); |
3283 | for (st.next = p + 1; | | 3283 | for (st.next = p + 1; |
3284 | *st.next != ':' && *st.next != st.endc && | | 3284 | *st.next != ':' && *st.next != st.endc && |
3285 | *st.next != '\0'; | | 3285 | *st.next != '\0'; |
3286 | st.next++) | | 3286 | st.next++) |
3287 | continue; | | 3287 | continue; |
3288 | st.newVal = var_Error; | | 3288 | st.newVal = var_Error; |
3289 | } | | 3289 | } |
3290 | } | | 3290 | } |
3291 | } | | 3291 | } |
3292 | if (DEBUG(VAR)) { | | 3292 | if (DEBUG(VAR)) { |
3293 | fprintf(debug_file, "Result[%s] of :%c is \"%s\"\n", | | 3293 | fprintf(debug_file, "Result[%s] of :%c is \"%s\"\n", |
3294 | st.v->name, modifier, st.newVal); | | 3294 | st.v->name, modifier, st.newVal); |
3295 | } | | 3295 | } |
3296 | | | 3296 | |
3297 | if (st.newVal != st.val) { | | 3297 | if (st.newVal != st.val) { |
3298 | if (*freePtr) { | | 3298 | if (*freePtr) { |
3299 | free(st.val); | | 3299 | free(st.val); |
3300 | *freePtr = NULL; | | 3300 | *freePtr = NULL; |
3301 | } | | 3301 | } |
3302 | st.val = st.newVal; | | 3302 | st.val = st.newVal; |
3303 | if (st.val != var_Error && st.val != varNoError) { | | 3303 | if (st.val != var_Error && st.val != varNoError) { |
3304 | *freePtr = st.val; | | 3304 | *freePtr = st.val; |
3305 | } | | 3305 | } |
3306 | } | | 3306 | } |
3307 | if (*st.next == '\0' && st.endc != '\0') { | | 3307 | if (*st.next == '\0' && st.endc != '\0') { |
3308 | Error("Unclosed variable specification (expecting '%c') " | | 3308 | Error("Unclosed variable specification (expecting '%c') " |
3309 | "for \"%s\" (value \"%s\") modifier %c", | | 3309 | "for \"%s\" (value \"%s\") modifier %c", |
3310 | st.endc, st.v->name, st.val, modifier); | | 3310 | st.endc, st.v->name, st.val, modifier); |
3311 | } else if (*st.next == ':') { | | 3311 | } else if (*st.next == ':') { |
3312 | st.next++; | | 3312 | st.next++; |
3313 | } | | 3313 | } |
3314 | p = st.next; | | 3314 | p = st.next; |
3315 | } | | 3315 | } |
3316 | out: | | 3316 | out: |
3317 | *lengthPtr = p - tstr; | | 3317 | *lengthPtr = p - tstr; |
3318 | return st.val; | | 3318 | return st.val; |
3319 | | | 3319 | |
3320 | bad_modifier: | | 3320 | bad_modifier: |
3321 | Error("Bad modifier `:%.*s' for %s", | | 3321 | Error("Bad modifier `:%.*s' for %s", |
3322 | (int)strcspn(p, ":)}"), p, st.v->name); | | 3322 | (int)strcspn(p, ":)}"), p, st.v->name); |
3323 | | | 3323 | |
3324 | cleanup: | | 3324 | cleanup: |
3325 | *lengthPtr = st.next - tstr; | | 3325 | *lengthPtr = st.next - tstr; |
3326 | if (st.missing_delim != '\0') | | 3326 | if (st.missing_delim != '\0') |
3327 | Error("Unclosed substitution for %s (%c missing)", | | 3327 | Error("Unclosed substitution for %s (%c missing)", |
3328 | st.v->name, st.missing_delim); | | 3328 | st.v->name, st.missing_delim); |
3329 | free(*freePtr); | | 3329 | free(*freePtr); |
3330 | *freePtr = NULL; | | 3330 | *freePtr = NULL; |
3331 | return var_Error; | | 3331 | return var_Error; |
3332 | } | | 3332 | } |
3333 | | | 3333 | |
3334 | static Boolean | | 3334 | static Boolean |
3335 | VarIsDynamic(GNode *ctxt, const char *varname, size_t namelen) | | 3335 | VarIsDynamic(GNode *ctxt, const char *varname, size_t namelen) |
3336 | { | | 3336 | { |
3337 | if ((namelen == 1 || | | 3337 | if ((namelen == 1 || |
3338 | (namelen == 2 && (varname[1] == 'F' || varname[1] == 'D'))) && | | 3338 | (namelen == 2 && (varname[1] == 'F' || varname[1] == 'D'))) && |
3339 | (ctxt == VAR_CMD || ctxt == VAR_GLOBAL)) | | 3339 | (ctxt == VAR_CMD || ctxt == VAR_GLOBAL)) |
3340 | { | | 3340 | { |
3341 | /* | | 3341 | /* |
3342 | * If substituting a local variable in a non-local context, | | 3342 | * If substituting a local variable in a non-local context, |
3343 | * assume it's for dynamic source stuff. We have to handle | | 3343 | * assume it's for dynamic source stuff. We have to handle |
3344 | * this specially and return the longhand for the variable | | 3344 | * this specially and return the longhand for the variable |
3345 | * with the dollar sign escaped so it makes it back to the | | 3345 | * with the dollar sign escaped so it makes it back to the |
3346 | * caller. Only four of the local variables are treated | | 3346 | * caller. Only four of the local variables are treated |
3347 | * specially as they are the only four that will be set | | 3347 | * specially as they are the only four that will be set |
3348 | * when dynamic sources are expanded. | | 3348 | * when dynamic sources are expanded. |
3349 | */ | | 3349 | */ |
3350 | switch (varname[0]) { | | 3350 | switch (varname[0]) { |
3351 | case '@': | | 3351 | case '@': |
3352 | case '%': | | 3352 | case '%': |
3353 | case '*': | | 3353 | case '*': |
3354 | case '!': | | 3354 | case '!': |
3355 | return TRUE; | | 3355 | return TRUE; |
3356 | } | | 3356 | } |
3357 | return FALSE; | | 3357 | return FALSE; |
3358 | } | | 3358 | } |
3359 | | | 3359 | |
3360 | if ((namelen == 7 || namelen == 8) && varname[0] == '.' && | | 3360 | if ((namelen == 7 || namelen == 8) && varname[0] == '.' && |
3361 | isupper((unsigned char) varname[1]) && | | 3361 | isupper((unsigned char) varname[1]) && |
3362 | (ctxt == VAR_CMD || ctxt == VAR_GLOBAL)) | | 3362 | (ctxt == VAR_CMD || ctxt == VAR_GLOBAL)) |
3363 | { | | 3363 | { |
3364 | return strcmp(varname, ".TARGET") == 0 || | | 3364 | return strcmp(varname, ".TARGET") == 0 || |
3365 | strcmp(varname, ".ARCHIVE") == 0 || | | 3365 | strcmp(varname, ".ARCHIVE") == 0 || |
3366 | strcmp(varname, ".PREFIX") == 0 || | | 3366 | strcmp(varname, ".PREFIX") == 0 || |
3367 | strcmp(varname, ".MEMBER") == 0; | | 3367 | strcmp(varname, ".MEMBER") == 0; |
3368 | } | | 3368 | } |
3369 | | | 3369 | |
3370 | return FALSE; | | 3370 | return FALSE; |
3371 | } | | 3371 | } |
3372 | | | 3372 | |
3373 | /*- | | 3373 | /*- |
3374 | *----------------------------------------------------------------------- | | 3374 | *----------------------------------------------------------------------- |
3375 | * Var_Parse -- | | 3375 | * Var_Parse -- |
3376 | * Given the start of a variable invocation (such as $v, $(VAR), | | 3376 | * Given the start of a variable invocation (such as $v, $(VAR), |
3377 | * ${VAR:Mpattern}), extract the variable name, possibly some | | 3377 | * ${VAR:Mpattern}), extract the variable name, possibly some |
3378 | * modifiers and find its value by applying the modifiers to the | | 3378 | * modifiers and find its value by applying the modifiers to the |
3379 | * original value. | | 3379 | * original value. |
3380 | * | | 3380 | * |
3381 | * Input: | | 3381 | * Input: |
3382 | * str The string to parse | | 3382 | * str The string to parse |
3383 | * ctxt The context for the variable | | 3383 | * ctxt The context for the variable |
3384 | * flags VARE_UNDEFERR if undefineds are an error | | 3384 | * flags VARE_UNDEFERR if undefineds are an error |
3385 | * VARE_WANTRES if we actually want the result | | 3385 | * VARE_WANTRES if we actually want the result |
3386 | * VARE_ASSIGN if we are in a := assignment | | 3386 | * VARE_ASSIGN if we are in a := assignment |
3387 | * lengthPtr OUT: The length of the specification | | 3387 | * lengthPtr OUT: The length of the specification |
3388 | * freePtr OUT: Non-NULL if caller should free *freePtr | | 3388 | * freePtr OUT: Non-NULL if caller should free *freePtr |
3389 | * | | 3389 | * |
3390 | * Results: | | 3390 | * Results: |
3391 | * The (possibly-modified) value of the variable or var_Error if the | | 3391 | * The (possibly-modified) value of the variable or var_Error if the |
3392 | * specification is invalid. The length of the specification is | | 3392 | * specification is invalid. The length of the specification is |
3393 | * placed in *lengthPtr (for invalid specifications, this is just | | 3393 | * placed in *lengthPtr (for invalid specifications, this is just |
3394 | * 2...?). | | 3394 | * 2...?). |
3395 | * If *freePtr is non-NULL then it's a pointer that the caller | | 3395 | * If *freePtr is non-NULL then it's a pointer that the caller |
3396 | * should pass to free() to free memory used by the result. | | 3396 | * should pass to free() to free memory used by the result. |
3397 | * | | 3397 | * |
3398 | * Side Effects: | | 3398 | * Side Effects: |
3399 | * None. | | 3399 | * None. |
3400 | * | | 3400 | * |
3401 | *----------------------------------------------------------------------- | | 3401 | *----------------------------------------------------------------------- |
3402 | */ | | 3402 | */ |
3403 | /* coverity[+alloc : arg-*4] */ | | 3403 | /* coverity[+alloc : arg-*4] */ |
3404 | const char * | | 3404 | const char * |
3405 | Var_Parse(const char * const str, GNode *ctxt, VarEvalFlags eflags, | | 3405 | Var_Parse(const char * const str, GNode *ctxt, VarEvalFlags eflags, |
3406 | int *lengthPtr, void **freePtr) | | 3406 | int *lengthPtr, void **freePtr) |
3407 | { | | 3407 | { |
3408 | const char *tstr; /* Pointer into str */ | | 3408 | const char *tstr; /* Pointer into str */ |
3409 | Var *v; /* Variable in invocation */ | | 3409 | Var *v; /* Variable in invocation */ |
3410 | Boolean haveModifier; /* TRUE if have modifiers for the variable */ | | 3410 | Boolean haveModifier; /* TRUE if have modifiers for the variable */ |
3411 | char endc; /* Ending character when variable in parens | | 3411 | char endc; /* Ending character when variable in parens |
3412 | * or braces */ | | 3412 | * or braces */ |
3413 | char startc; /* Starting character when variable in parens | | 3413 | char startc; /* Starting character when variable in parens |
3414 | * or braces */ | | 3414 | * or braces */ |
3415 | char *nstr; /* New string, used during expansion */ | | 3415 | char *nstr; /* New string, used during expansion */ |
3416 | Boolean dynamic; /* TRUE if the variable is local and we're | | 3416 | Boolean dynamic; /* TRUE if the variable is local and we're |
3417 | * expanding it in a non-local context. This | | 3417 | * expanding it in a non-local context. This |
3418 | * is done to support dynamic sources. The | | 3418 | * is done to support dynamic sources. The |
3419 | * result is just the invocation, unaltered */ | | 3419 | * result is just the invocation, unaltered */ |
3420 | const char *extramodifiers; /* extra modifiers to apply first */ | | 3420 | const char *extramodifiers; /* extra modifiers to apply first */ |
3421 | | | 3421 | |
3422 | *freePtr = NULL; | | 3422 | *freePtr = NULL; |
3423 | extramodifiers = NULL; | | 3423 | extramodifiers = NULL; |
3424 | dynamic = FALSE; | | 3424 | dynamic = FALSE; |
3425 | | | 3425 | |
3426 | startc = str[1]; | | 3426 | startc = str[1]; |
3427 | if (startc != PROPEN && startc != BROPEN) { | | 3427 | if (startc != PROPEN && startc != BROPEN) { |
3428 | /* | | 3428 | /* |
3429 | * If it's not bounded by braces of some sort, life is much simpler. | | 3429 | * If it's not bounded by braces of some sort, life is much simpler. |
3430 | * We just need to check for the first character and return the | | 3430 | * We just need to check for the first character and return the |
3431 | * value if it exists. | | 3431 | * value if it exists. |
3432 | */ | | 3432 | */ |
3433 | | | 3433 | |
3434 | /* Error out some really stupid names */ | | 3434 | /* Error out some really stupid names */ |
3435 | if (startc == '\0' || strchr(")}:$", startc)) { | | 3435 | if (startc == '\0' || strchr(")}:$", startc)) { |
3436 | *lengthPtr = 1; | | 3436 | *lengthPtr = 1; |
3437 | return var_Error; | | 3437 | return var_Error; |
3438 | } | | 3438 | } |
3439 | char name[] = { startc, '\0' }; | | 3439 | char name[] = { startc, '\0' }; |
3440 | | | 3440 | |
3441 | v = VarFind(name, ctxt, FIND_ENV | FIND_GLOBAL | FIND_CMD); | | 3441 | v = VarFind(name, ctxt, FIND_ENV | FIND_GLOBAL | FIND_CMD); |
3442 | if (v == NULL) { | | 3442 | if (v == NULL) { |
3443 | *lengthPtr = 2; | | 3443 | *lengthPtr = 2; |
3444 | | | 3444 | |
3445 | if ((ctxt == VAR_CMD) || (ctxt == VAR_GLOBAL)) { | | 3445 | if ((ctxt == VAR_CMD) || (ctxt == VAR_GLOBAL)) { |
3446 | /* | | 3446 | /* |
3447 | * If substituting a local variable in a non-local context, | | 3447 | * If substituting a local variable in a non-local context, |
3448 | * assume it's for dynamic source stuff. We have to handle | | 3448 | * assume it's for dynamic source stuff. We have to handle |
3449 | * this specially and return the longhand for the variable | | 3449 | * this specially and return the longhand for the variable |
3450 | * with the dollar sign escaped so it makes it back to the | | 3450 | * with the dollar sign escaped so it makes it back to the |
3451 | * caller. Only four of the local variables are treated | | 3451 | * caller. Only four of the local variables are treated |
3452 | * specially as they are the only four that will be set | | 3452 | * specially as they are the only four that will be set |
3453 | * when dynamic sources are expanded. | | 3453 | * when dynamic sources are expanded. |
3454 | */ | | 3454 | */ |
3455 | switch (str[1]) { | | 3455 | switch (str[1]) { |
3456 | case '@': | | 3456 | case '@': |
3457 | return "$(.TARGET)"; | | 3457 | return "$(.TARGET)"; |
3458 | case '%': | | 3458 | case '%': |
3459 | return "$(.MEMBER)"; | | 3459 | return "$(.MEMBER)"; |
3460 | case '*': | | 3460 | case '*': |
3461 | return "$(.PREFIX)"; | | 3461 | return "$(.PREFIX)"; |
3462 | case '!': | | 3462 | case '!': |
3463 | return "$(.ARCHIVE)"; | | 3463 | return "$(.ARCHIVE)"; |
3464 | } | | 3464 | } |
3465 | } | | 3465 | } |
3466 | return (eflags & VARE_UNDEFERR) ? var_Error : varNoError; | | 3466 | return (eflags & VARE_UNDEFERR) ? var_Error : varNoError; |
3467 | } else { | | 3467 | } else { |
3468 | haveModifier = FALSE; | | 3468 | haveModifier = FALSE; |
3469 | tstr = str + 1; | | 3469 | tstr = str + 1; |
3470 | endc = str[1]; | | 3470 | endc = str[1]; |
3471 | } | | 3471 | } |
3472 | } else { | | 3472 | } else { |
3473 | Buffer namebuf; /* Holds the variable name */ | | 3473 | Buffer namebuf; /* Holds the variable name */ |
3474 | int depth = 1; | | 3474 | int depth = 1; |
3475 | | | 3475 | |
3476 | endc = startc == PROPEN ? PRCLOSE : BRCLOSE; | | 3476 | endc = startc == PROPEN ? PRCLOSE : BRCLOSE; |
3477 | Buf_Init(&namebuf, 0); | | 3477 | Buf_Init(&namebuf, 0); |
3478 | | | 3478 | |
3479 | /* | | 3479 | /* |
3480 | * Skip to the end character or a colon, whichever comes first. | | 3480 | * Skip to the end character or a colon, whichever comes first. |
3481 | */ | | 3481 | */ |
3482 | for (tstr = str + 2; *tstr != '\0'; tstr++) { | | 3482 | for (tstr = str + 2; *tstr != '\0'; tstr++) { |
3483 | /* Track depth so we can spot parse errors. */ | | 3483 | /* Track depth so we can spot parse errors. */ |
3484 | if (*tstr == startc) | | 3484 | if (*tstr == startc) |
3485 | depth++; | | 3485 | depth++; |
3486 | if (*tstr == endc) { | | 3486 | if (*tstr == endc) { |
3487 | if (--depth == 0) | | 3487 | if (--depth == 0) |
3488 | break; | | 3488 | break; |
3489 | } | | 3489 | } |
3490 | if (depth == 1 && *tstr == ':') | | 3490 | if (depth == 1 && *tstr == ':') |
3491 | break; | | 3491 | break; |
3492 | /* A variable inside a variable, expand. */ | | 3492 | /* A variable inside a variable, expand. */ |
3493 | if (*tstr == '$') { | | 3493 | if (*tstr == '$') { |
3494 | int rlen; | | 3494 | int rlen; |
3495 | void *freeIt; | | 3495 | void *freeIt; |
3496 | const char *rval = Var_Parse(tstr, ctxt, eflags, &rlen, &freeIt); | | 3496 | const char *rval = Var_Parse(tstr, ctxt, eflags, &rlen, &freeIt); |
3497 | if (rval != NULL) | | 3497 | if (rval != NULL) |
3498 | Buf_AddStr(&namebuf, rval); | | 3498 | Buf_AddStr(&namebuf, rval); |
3499 | free(freeIt); | | 3499 | free(freeIt); |
3500 | tstr += rlen - 1; | | 3500 | tstr += rlen - 1; |
3501 | } else | | 3501 | } else |
3502 | Buf_AddByte(&namebuf, *tstr); | | 3502 | Buf_AddByte(&namebuf, *tstr); |
3503 | } | | 3503 | } |
3504 | if (*tstr == ':') { | | 3504 | if (*tstr == ':') { |
3505 | haveModifier = TRUE; | | 3505 | haveModifier = TRUE; |
3506 | } else if (*tstr == endc) { | | 3506 | } else if (*tstr == endc) { |
3507 | haveModifier = FALSE; | | 3507 | haveModifier = FALSE; |
3508 | } else { | | 3508 | } else { |
3509 | Parse_Error(PARSE_FATAL, "Unclosed variable \"%s\"", | | 3509 | Parse_Error(PARSE_FATAL, "Unclosed variable \"%s\"", |
3510 | Buf_GetAll(&namebuf, NULL)); | | 3510 | Buf_GetAll(&namebuf, NULL)); |
3511 | /* | | 3511 | /* |
3512 | * If we never did find the end character, return NULL | | 3512 | * If we never did find the end character, return NULL |
3513 | * right now, setting the length to be the distance to | | 3513 | * right now, setting the length to be the distance to |
3514 | * the end of the string, since that's what make does. | | 3514 | * the end of the string, since that's what make does. |
3515 | */ | | 3515 | */ |
3516 | *lengthPtr = tstr - str; | | 3516 | *lengthPtr = tstr - str; |
3517 | Buf_Destroy(&namebuf, TRUE); | | 3517 | Buf_Destroy(&namebuf, TRUE); |
3518 | return var_Error; | | 3518 | return var_Error; |
3519 | } | | 3519 | } |
3520 | | | 3520 | |
3521 | int namelen; | | 3521 | int namelen; |
3522 | char *varname = Buf_GetAll(&namebuf, &namelen); | | 3522 | char *varname = Buf_GetAll(&namebuf, &namelen); |
3523 | | | 3523 | |
3524 | /* | | 3524 | /* |
3525 | * At this point, varname points into newly allocated memory from | | 3525 | * At this point, varname points into newly allocated memory from |