Mercurial > ~dholland > hg > tradcpp > index.cgi
annotate directive.c @ 172:3e7e696fe558
Clean up the mess Joerg made of apply_builtin_macros().
| author | David A. Holland |
|---|---|
| date | Fri, 12 Jun 2015 02:14:45 -0400 |
| parents | cc6d6f27d6ee |
| children | 6ff17ab68b16 |
| rev | line source |
|---|---|
| 30 | 1 /*- |
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2 * Copyright (c) 2010, 2013 The NetBSD Foundation, Inc. |
| 30 | 3 * All rights reserved. |
| 4 * | |
| 5 * This code is derived from software contributed to The NetBSD Foundation | |
| 6 * by David A. Holland. | |
| 7 * | |
| 8 * Redistribution and use in source and binary forms, with or without | |
| 9 * modification, are permitted provided that the following conditions | |
| 10 * are met: | |
| 11 * 1. Redistributions of source code must retain the above copyright | |
| 12 * notice, this list of conditions and the following disclaimer. | |
| 13 * 2. Redistributions in binary form must reproduce the above copyright | |
| 14 * notice, this list of conditions and the following disclaimer in the | |
| 15 * documentation and/or other materials provided with the distribution. | |
| 16 * | |
| 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS | |
| 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED | |
| 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS | |
| 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 27 * POSSIBILITY OF SUCH DAMAGE. | |
| 28 */ | |
| 29 | |
| 15 | 30 #include <assert.h> |
| 31 #include <stdbool.h> | |
| 32 #include <stdlib.h> | |
| 33 #include <string.h> | |
| 165 | 34 #include <errno.h> |
| 15 | 35 |
| 36 #include "utils.h" | |
| 37 #include "mode.h" | |
| 38 #include "place.h" | |
| 39 #include "files.h" | |
| 40 #include "directive.h" | |
| 41 #include "macro.h" | |
| 42 #include "eval.h" | |
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43 #include "output.h" |
| 15 | 44 |
| 45 struct ifstate { | |
| 46 struct ifstate *prev; | |
| 47 struct place startplace; | |
| 48 bool curtrue; | |
| 49 bool evertrue; | |
| 50 bool seenelse; | |
| 51 }; | |
| 52 | |
| 53 static struct ifstate *ifstate; | |
| 54 | |
| 55 //////////////////////////////////////////////////////////// | |
| 56 // common parsing bits | |
| 57 | |
| 58 static | |
| 59 void | |
|
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60 uncomment(char *buf) |
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61 { |
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62 char *s, *t, *u = NULL; |
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63 bool incomment = false; |
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64 bool inesc = false; |
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65 bool inquote = false; |
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66 char quote = '\0'; |
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67 |
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68 for (s = t = buf; *s; s++) { |
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69 if (incomment) { |
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70 if (s[0] == '*' && s[1] == '/') { |
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71 s++; |
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72 incomment = false; |
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73 } |
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74 } else { |
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75 if (!inquote && s[0] == '/' && s[1] == '*') { |
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76 incomment = true; |
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77 } else { |
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78 if (inesc) { |
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79 inesc = false; |
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80 } else if (s[0] == '\\') { |
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81 inesc = true; |
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82 } else if (!inquote && |
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83 (s[0] == '"' || s[0] == '\'')) { |
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84 inquote = true; |
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85 quote = s[0]; |
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86 } else if (inquote && s[0] == quote) { |
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87 inquote = false; |
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88 } |
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89 |
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90 if (t != s) { |
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91 *t = *s; |
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92 } |
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93 if (!strchr(ws, *t)) { |
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94 u = t; |
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95 } |
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96 t++; |
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97 } |
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98 } |
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99 } |
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100 if (u) { |
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101 /* end string after last non-whitespace char */ |
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102 u[1] = '\0'; |
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103 } else { |
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104 *t = '\0'; |
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105 } |
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106 } |
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107 |
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108 static |
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109 void |
| 15 | 110 oneword(const char *what, struct place *p2, char *line) |
| 111 { | |
| 112 size_t pos; | |
| 113 | |
| 114 pos = strcspn(line, ws); | |
| 115 if (line[pos] != '\0') { | |
| 116 p2->column += pos; | |
| 117 complain(p2, "Garbage after %s argument", what); | |
| 118 complain_fail(); | |
| 119 line[pos] = '\0'; | |
| 120 } | |
| 121 } | |
| 122 | |
| 123 //////////////////////////////////////////////////////////// | |
| 124 // if handling | |
| 125 | |
| 126 static | |
| 127 struct ifstate * | |
| 128 ifstate_create(struct ifstate *prev, struct place *p, bool startstate) | |
| 129 { | |
| 130 struct ifstate *is; | |
| 131 | |
| 132 is = domalloc(sizeof(*is)); | |
| 133 is->prev = prev; | |
| 134 if (p != NULL) { | |
| 135 is->startplace = *p; | |
| 136 } else { | |
| 137 place_setbuiltin(&is->startplace, 1); | |
| 138 } | |
| 139 is->curtrue = startstate; | |
| 140 is->evertrue = is->curtrue; | |
| 141 is->seenelse = false; | |
| 142 return is; | |
| 143 } | |
| 144 | |
| 145 static | |
| 146 void | |
| 147 ifstate_destroy(struct ifstate *is) | |
| 148 { | |
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149 dofree(is, sizeof(*is)); |
| 15 | 150 } |
| 151 | |
| 152 static | |
| 153 void | |
| 154 ifstate_push(struct place *p, bool startstate) | |
| 155 { | |
| 72 | 156 struct ifstate *newstate; |
| 157 | |
| 158 newstate = ifstate_create(ifstate, p, startstate); | |
| 159 if (!ifstate->curtrue) { | |
| 160 newstate->curtrue = false; | |
| 161 newstate->evertrue = true; | |
| 162 } | |
| 163 ifstate = newstate; | |
| 15 | 164 } |
| 165 | |
| 166 static | |
| 167 void | |
| 168 ifstate_pop(void) | |
| 169 { | |
| 170 struct ifstate *is; | |
| 171 | |
| 172 is = ifstate; | |
| 173 ifstate = ifstate->prev; | |
| 174 ifstate_destroy(is); | |
| 175 } | |
| 176 | |
| 177 static | |
| 178 void | |
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179 d_if(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 180 { |
| 181 char *expr; | |
| 182 bool val; | |
| 16 | 183 struct place p3 = *p2; |
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184 size_t oldlen; |
| 15 | 185 |
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186 expr = macroexpand(p2, line, strlen(line), true); |
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187 |
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188 oldlen = strlen(expr); |
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189 uncomment(expr); |
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190 /* trim to fit, so the malloc debugging won't complain */ |
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191 expr = dorealloc(expr, oldlen + 1, strlen(expr) + 1); |
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192 |
| 127 | 193 if (ifstate->curtrue) { |
| 194 val = eval(&p3, expr); | |
| 195 } else { | |
| 196 val = 0; | |
| 197 } | |
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198 ifstate_push(&lp->current, val); |
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199 dostrfree(expr); |
| 15 | 200 } |
| 201 | |
| 202 static | |
| 203 void | |
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204 d_ifdef(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 205 { |
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206 uncomment(line); |
| 15 | 207 oneword("#ifdef", p2, line); |
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208 ifstate_push(&lp->current, macro_isdefined(line)); |
| 15 | 209 } |
| 210 | |
| 211 static | |
| 212 void | |
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213 d_ifndef(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 214 { |
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215 uncomment(line); |
| 15 | 216 oneword("#ifndef", p2, line); |
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217 ifstate_push(&lp->current, !macro_isdefined(line)); |
| 15 | 218 } |
| 219 | |
| 220 static | |
| 221 void | |
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222 d_elif(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 223 { |
| 224 char *expr; | |
| 16 | 225 struct place p3 = *p2; |
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226 size_t oldlen; |
| 15 | 227 |
| 228 if (ifstate->seenelse) { | |
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229 complain(&lp->current, "#elif after #else"); |
| 15 | 230 complain_fail(); |
| 231 } | |
| 232 | |
| 233 if (ifstate->evertrue) { | |
| 234 ifstate->curtrue = false; | |
| 235 } else { | |
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236 expr = macroexpand(p2, line, strlen(line), true); |
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237 |
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238 oldlen = strlen(expr); |
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239 uncomment(expr); |
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240 /* trim to fit, so the malloc debugging won't complain */ |
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241 expr = dorealloc(expr, oldlen + 1, strlen(expr) + 1); |
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242 |
| 16 | 243 ifstate->curtrue = eval(&p3, expr); |
| 15 | 244 ifstate->evertrue = ifstate->curtrue; |
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245 dostrfree(expr); |
| 15 | 246 } |
| 247 } | |
| 248 | |
| 249 static | |
| 250 void | |
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251 d_else(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 252 { |
| 103 | 253 (void)p2; |
| 254 (void)line; | |
| 255 | |
| 15 | 256 if (ifstate->seenelse) { |
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257 complain(&lp->current, |
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258 "Multiple #else directives in one conditional"); |
| 15 | 259 complain_fail(); |
| 260 } | |
| 261 | |
| 262 ifstate->curtrue = !ifstate->evertrue; | |
| 263 ifstate->evertrue = true; | |
| 264 ifstate->seenelse = true; | |
| 265 } | |
| 266 | |
| 267 static | |
| 268 void | |
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269 d_endif(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 270 { |
| 103 | 271 (void)p2; |
| 272 (void)line; | |
| 273 | |
| 15 | 274 if (ifstate->prev == NULL) { |
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275 complain(&lp->current, "Unmatched #endif"); |
| 15 | 276 complain_fail(); |
| 277 } else { | |
| 278 ifstate_pop(); | |
| 279 } | |
| 280 } | |
| 281 | |
| 282 //////////////////////////////////////////////////////////// | |
| 283 // macros | |
| 284 | |
| 285 static | |
| 286 void | |
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287 d_define(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 288 { |
| 18 | 289 size_t pos, argpos; |
| 290 struct place p3, p4; | |
| 15 | 291 |
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292 (void)lp; |
| 103 | 293 |
| 15 | 294 /* |
| 295 * line may be: | |
| 296 * macro expansion | |
| 297 * macro(arg, arg, ...) expansion | |
| 298 */ | |
| 299 | |
| 300 pos = strcspn(line, " \t\f\v("); | |
| 301 if (line[pos] == '(') { | |
| 18 | 302 line[pos++] = '\0'; |
| 303 argpos = pos; | |
| 15 | 304 pos = pos + strcspn(line+pos, "()"); |
| 305 if (line[pos] == '(') { | |
| 306 p2->column += pos; | |
| 307 complain(p2, "Left parenthesis in macro parameters"); | |
| 308 complain_fail(); | |
| 309 return; | |
| 310 } | |
| 311 if (line[pos] != ')') { | |
| 312 p2->column += pos; | |
| 313 complain(p2, "Unclosed macro parameter list"); | |
| 314 complain_fail(); | |
| 315 return; | |
| 316 } | |
| 18 | 317 line[pos++] = '\0'; |
|
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318 #if 0 |
| 15 | 319 if (!strchr(ws, line[pos])) { |
| 320 p2->column += pos; | |
| 321 complain(p2, "Trash after macro parameter list"); | |
| 322 complain_fail(); | |
| 323 return; | |
| 324 } | |
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325 #endif |
| 15 | 326 } else if (line[pos] == '\0') { |
| 18 | 327 argpos = 0; |
| 15 | 328 } else { |
| 329 line[pos++] = '\0'; | |
| 18 | 330 argpos = 0; |
| 15 | 331 } |
| 332 | |
| 333 pos += strspn(line+pos, ws); | |
| 334 | |
| 335 p3 = *p2; | |
| 18 | 336 p3.column += argpos; |
| 337 | |
| 338 p4 = *p2; | |
| 339 p4.column += pos; | |
| 340 | |
| 341 if (argpos) { | |
| 342 macro_define_params(p2, line, &p3, | |
| 343 line + argpos, &p4, | |
| 344 line + pos); | |
| 345 } else { | |
| 346 macro_define_plain(p2, line, &p4, line + pos); | |
| 347 } | |
| 15 | 348 } |
| 349 | |
| 350 static | |
| 351 void | |
|
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352 d_undef(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 353 { |
|
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354 (void)lp; |
| 103 | 355 |
|
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356 uncomment(line); |
| 15 | 357 oneword("#undef", p2, line); |
| 358 macro_undef(line); | |
| 359 } | |
| 360 | |
| 361 //////////////////////////////////////////////////////////// | |
| 362 // includes | |
| 363 | |
| 364 static | |
| 365 bool | |
|
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366 tryinclude(struct place *p, char *line) |
| 15 | 367 { |
|
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368 size_t len; |
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369 |
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370 len = strlen(line); |
| 15 | 371 if (len > 2 && line[0] == '"' && line[len-1] == '"') { |
| 372 line[len-1] = '\0'; | |
| 373 file_readquote(p, line+1); | |
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374 line[len-1] = '"'; |
| 15 | 375 return true; |
| 376 } | |
| 377 if (len > 2 && line[0] == '<' && line[len-1] == '>') { | |
| 378 line[len-1] = '\0'; | |
| 379 file_readbracket(p, line+1); | |
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380 line[len-1] = '>'; |
| 15 | 381 return true; |
| 382 } | |
| 383 return false; | |
| 384 } | |
| 385 | |
| 386 static | |
| 387 void | |
|
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388 d_include(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 389 { |
| 390 char *text; | |
|
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391 size_t oldlen; |
| 15 | 392 |
|
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393 uncomment(line); |
|
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394 if (tryinclude(&lp->current, line)) { |
| 15 | 395 return; |
| 396 } | |
|
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397 text = macroexpand(p2, line, strlen(line), false); |
|
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398 |
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399 oldlen = strlen(text); |
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400 uncomment(text); |
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401 /* trim to fit, so the malloc debugging won't complain */ |
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402 text = dorealloc(text, oldlen + 1, strlen(text) + 1); |
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403 |
|
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404 if (tryinclude(&lp->current, text)) { |
|
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405 dostrfree(text); |
| 15 | 406 return; |
| 407 } | |
|
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408 complain(&lp->current, "Illegal #include directive"); |
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409 complain(&lp->current, "Before macro expansion: #include %s", line); |
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410 complain(&lp->current, "After macro expansion: #include %s", text); |
|
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411 dostrfree(text); |
| 15 | 412 complain_fail(); |
| 413 } | |
| 414 | |
| 415 static | |
| 416 void | |
|
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417 d_line(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 418 { |
| 160 | 419 char *text; |
| 420 size_t oldlen; | |
| 165 | 421 unsigned long val; |
| 422 char *moretext; | |
| 423 size_t moretextlen; | |
| 424 char *filename; | |
| 160 | 425 |
| 426 text = macroexpand(p2, line, strlen(line), true); | |
| 427 | |
| 428 oldlen = strlen(text); | |
| 429 uncomment(text); | |
| 430 /* trim to fit, so the malloc debugging won't complain */ | |
| 431 text = dorealloc(text, oldlen + 1, strlen(text) + 1); | |
| 103 | 432 |
| 165 | 433 /* |
| 434 * What we should have here: either 1234 "file.c", | |
| 435 * or just 1234. | |
| 436 */ | |
| 437 | |
| 438 errno = 0; | |
| 439 val = strtoul(text, &moretext, 10); | |
| 440 if (errno) { | |
| 441 complain(&lp->current, "No line number in #line directive"); | |
| 442 goto fail; | |
| 160 | 443 } |
| 165 | 444 #if UINT_MAX < ULONG_MAX |
| 445 if (val > UINT_MAX) { | |
| 446 complain(&lp->current, | |
| 447 "Line number in #line directive too large"); | |
| 448 goto fail; | |
| 160 | 449 } |
| 165 | 450 #endif |
| 451 moretext += strspn(moretext, ws); | |
| 452 moretextlen = strlen(moretext); | |
| 453 lp->current.column += (moretext - text); | |
| 454 | |
| 455 if (moretextlen > 2 && | |
| 456 moretext[0] == '"' && moretext[moretextlen-1] == '"') { | |
| 457 filename = dostrndup(moretext+1, moretextlen-2); | |
| 164 | 458 place_setfile(&lp->nextline, filename); |
| 160 | 459 dostrfree(filename); |
| 460 } | |
| 165 | 461 else if (moretextlen > 0) { |
| 462 complain(&lp->current, | |
| 463 "Invalid file name in #line directive"); | |
| 464 goto fail; | |
| 465 } | |
| 466 | |
| 467 lp->nextline.line = val; | |
| 160 | 468 dostrfree(text); |
| 469 return; | |
| 470 | |
| 165 | 471 fail: |
| 472 complain(&lp->current, "Before macro expansion: #line %s", line); | |
| 473 complain(&lp->current, "After macro expansion: #line %s", text); | |
| 474 complain_fail(); | |
| 160 | 475 dostrfree(text); |
| 15 | 476 } |
| 477 | |
| 478 //////////////////////////////////////////////////////////// | |
| 479 // messages | |
| 480 | |
| 481 static | |
| 482 void | |
|
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483 d_warning(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 484 { |
| 485 char *msg; | |
| 486 | |
|
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487 msg = macroexpand(p2, line, strlen(line), false); |
|
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488 complain(&lp->current, "#warning: %s", msg); |
| 15 | 489 if (mode.werror) { |
| 490 complain_fail(); | |
| 491 } | |
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492 dostrfree(msg); |
| 15 | 493 } |
| 494 | |
| 495 static | |
| 496 void | |
|
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497 d_error(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 498 { |
| 499 char *msg; | |
| 500 | |
|
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501 msg = macroexpand(p2, line, strlen(line), false); |
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502 complain(&lp->current, "#error: %s", msg); |
| 15 | 503 complain_fail(); |
|
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504 dostrfree(msg); |
| 15 | 505 } |
| 506 | |
| 507 //////////////////////////////////////////////////////////// | |
| 508 // other | |
| 509 | |
| 510 static | |
| 511 void | |
|
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512 d_pragma(struct lineplace *lp, struct place *p2, char *line) |
| 15 | 513 { |
| 103 | 514 (void)p2; |
| 515 | |
|
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516 complain(&lp->current, "#pragma %s", line); |
| 15 | 517 complain_fail(); |
| 518 } | |
| 519 | |
| 520 //////////////////////////////////////////////////////////// | |
| 521 // directive table | |
| 522 | |
| 523 static const struct { | |
| 524 const char *name; | |
| 525 bool ifskip; | |
|
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526 void (*func)(struct lineplace *, struct place *, char *line); |
| 15 | 527 } directives[] = { |
| 528 { "define", true, d_define }, | |
| 529 { "elif", false, d_elif }, | |
| 530 { "else", false, d_else }, | |
| 531 { "endif", false, d_endif }, | |
| 532 { "error", true, d_error }, | |
| 533 { "if", false, d_if }, | |
| 534 { "ifdef", false, d_ifdef }, | |
| 535 { "ifndef", false, d_ifndef }, | |
| 536 { "include", true, d_include }, | |
| 537 { "line", true, d_line }, | |
| 538 { "pragma", true, d_pragma }, | |
| 539 { "undef", true, d_undef }, | |
| 540 { "warning", true, d_warning }, | |
| 541 }; | |
| 542 static const unsigned numdirectives = HOWMANY(directives); | |
| 543 | |
| 544 static | |
| 545 void | |
|
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546 directive_gotdirective(struct lineplace *lp, char *line) |
| 15 | 547 { |
| 548 struct place p2; | |
| 549 size_t len, skip; | |
| 550 unsigned i; | |
| 551 | |
|
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552 p2 = lp->current; |
| 15 | 553 for (i=0; i<numdirectives; i++) { |
| 554 len = strlen(directives[i].name); | |
| 555 if (!strncmp(line, directives[i].name, len) && | |
| 556 strchr(ws, line[len])) { | |
| 557 if (directives[i].ifskip && !ifstate->curtrue) { | |
| 558 return; | |
| 559 } | |
| 560 skip = len + strspn(line+len, ws); | |
| 561 p2.column += skip; | |
| 562 line += skip; | |
|
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|
563 |
|
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564 len = strlen(line); |
|
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565 len = notrailingws(line, len); |
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566 if (len < strlen(line)) { |
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567 line[len] = '\0'; |
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568 } |
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569 directives[i].func(lp, &p2, line); |
| 15 | 570 return; |
| 571 } | |
| 572 } | |
|
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573 /* ugh. allow # by itself, including with a comment after it */ |
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574 uncomment(line); |
|
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575 if (line[0] == '\0') { |
|
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576 return; |
|
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|
577 } |
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578 |
| 15 | 579 skip = strcspn(line, ws); |
|
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580 complain(&lp->current, "Unknown directive #%.*s", (int)skip, line); |
| 15 | 581 complain_fail(); |
| 582 } | |
| 583 | |
|
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|
584 /* |
|
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585 * Check for nested comment delimiters in LINE. |
|
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586 */ |
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587 static |
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588 size_t |
|
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589 directive_scancomments(const struct lineplace *lp, char *line, size_t len) |
|
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590 { |
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591 size_t pos; |
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|
592 bool incomment; |
|
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593 struct place p2; |
|
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594 |
|
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595 p2 = lp->current; |
|
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596 incomment = 0; |
|
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597 for (pos = 0; pos+1 < len; pos++) { |
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598 if (line[pos] == '/' && line[pos+1] == '*') { |
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599 if (incomment) { |
|
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600 complain(&p2, "Warning: %c%c within comment", |
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601 '/', '*'); |
|
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602 if (mode.werror) { |
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603 complain_failed(); |
|
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604 } |
|
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|
605 } else { |
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606 incomment = true; |
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607 } |
| 109 | 608 pos++; |
|
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609 } else if (line[pos] == '*' && line[pos+1] == '/') { |
|
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610 if (incomment) { |
|
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611 incomment = false; |
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|
612 } else { |
|
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613 /* stray end-comment; should we care? */ |
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614 } |
| 109 | 615 pos++; |
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616 } |
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617 if (line[pos] == '\n') { |
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618 p2.line++; |
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619 p2.column = 0; |
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620 } else { |
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621 p2.column++; |
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622 } |
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623 } |
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624 |
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625 /* multiline comments are supposed to arrive in a single buffer */ |
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626 assert(!incomment); |
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627 return len; |
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628 } |
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629 |
| 15 | 630 void |
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631 directive_gotline(struct lineplace *lp, char *line, size_t len) |
| 15 | 632 { |
| 633 size_t skip; | |
| 634 | |
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635 if (warns.nestcomment) { |
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636 directive_scancomments(lp, line, len); |
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637 } |
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638 |
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639 /* check if we have a directive line (# exactly in column 0) */ |
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640 if (line[0] == '#') { |
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641 skip = 1 + strspn(line + 1, ws); |
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642 assert(skip <= len); |
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643 lp->current.column += skip; |
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644 assert(line[len] == '\0'); |
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645 directive_gotdirective(lp, line+skip /*, length = len-skip */); |
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646 lp->current.column += len-skip; |
| 15 | 647 } else if (ifstate->curtrue) { |
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648 macro_sendline(&lp->current, line, len); |
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649 lp->current.column += len; |
| 15 | 650 } |
| 651 } | |
| 652 | |
| 653 void | |
| 654 directive_goteof(struct place *p) | |
| 655 { | |
| 656 while (ifstate->prev != NULL) { | |
| 657 complain(p, "Missing #endif"); | |
| 658 complain(&ifstate->startplace, "...opened at this point"); | |
| 659 complain_failed(); | |
| 660 ifstate_pop(); | |
| 661 } | |
| 662 macro_sendeof(p); | |
| 663 } | |
| 664 | |
| 665 //////////////////////////////////////////////////////////// | |
| 666 // module initialization | |
| 667 | |
| 668 void | |
| 669 directive_init(void) | |
| 670 { | |
| 671 ifstate = ifstate_create(NULL, NULL, true); | |
| 672 } | |
| 673 | |
| 674 void | |
| 675 directive_cleanup(void) | |
| 676 { | |
| 677 assert(ifstate->prev == NULL); | |
| 678 ifstate_destroy(ifstate); | |
| 679 ifstate = NULL; | |
| 680 } |