1 | /* parser config.in |
---|
2 | * $Id$ |
---|
3 | * |
---|
4 | * This software is governed by the CeCILL license |
---|
5 | * See IOIPSL/IOIPSL_License_CeCILL.txt |
---|
6 | * |
---|
7 | * Version 1.0 |
---|
8 | * Eric Youngdale |
---|
9 | * 10/95 |
---|
10 | * |
---|
11 | * The general idea here is that we want to parse a config.in file and |
---|
12 | * from this, we generate a wish script which gives us effectively the |
---|
13 | * same functionality that the original config.in script provided. |
---|
14 | * |
---|
15 | * This task is split roughly into 3 parts. The first parse is the parse |
---|
16 | * of the input file itself. The second part is where we analyze the |
---|
17 | * #ifdef clauses, and attach a linked list of tokens to each of the |
---|
18 | * menu items. In this way, each menu item has a complete list of |
---|
19 | * dependencies that are used to enable/disable the options. |
---|
20 | * The third part is to take the configuration database we have build, |
---|
21 | * and build the actual wish script. |
---|
22 | * |
---|
23 | * This file contains the code to do the first parse of config.in. |
---|
24 | */ |
---|
25 | #include <stdlib.h> |
---|
26 | #include <stdio.h> |
---|
27 | #include <string.h> |
---|
28 | #include "tkparse.h" |
---|
29 | |
---|
30 | struct kconfig * config = NULL; |
---|
31 | struct kconfig * clast = NULL; |
---|
32 | struct kconfig * koption = NULL; |
---|
33 | static int lineno = 0; |
---|
34 | static int menus_seen = 0; |
---|
35 | static char * current_file = NULL; |
---|
36 | static int do_source(char * filename); |
---|
37 | static char * get_string(char *pnt, char ** labl); |
---|
38 | static int choose_number = 0; |
---|
39 | |
---|
40 | |
---|
41 | /* |
---|
42 | * Simple function just to skip over spaces and tabs in config.in. |
---|
43 | */ |
---|
44 | static char * skip_whitespace(char * pnt) |
---|
45 | { |
---|
46 | while( *pnt && (*pnt == ' ' || *pnt == '\t')) pnt++; |
---|
47 | return pnt; |
---|
48 | } |
---|
49 | |
---|
50 | /* |
---|
51 | * This function parses a conditional from a config.in (i.e. from an ifdef) |
---|
52 | * and generates a linked list of tokens that describes the conditional. |
---|
53 | */ |
---|
54 | static struct condition * parse_if(char * pnt) |
---|
55 | { |
---|
56 | char * opnt; |
---|
57 | struct condition *list; |
---|
58 | struct condition *last; |
---|
59 | struct condition *cpnt; |
---|
60 | char varname[64]; |
---|
61 | char * pnt1; |
---|
62 | |
---|
63 | opnt = pnt; |
---|
64 | |
---|
65 | /* |
---|
66 | * We need to find the various tokens, and build the linked list. |
---|
67 | */ |
---|
68 | pnt = skip_whitespace(pnt); |
---|
69 | if( *pnt != '[' ) return NULL; |
---|
70 | pnt++; |
---|
71 | pnt = skip_whitespace(pnt); |
---|
72 | |
---|
73 | list = last = NULL; |
---|
74 | while(*pnt && *pnt != ']') { |
---|
75 | |
---|
76 | pnt = skip_whitespace(pnt); |
---|
77 | if(*pnt== '\0' || *pnt == ']') break; |
---|
78 | |
---|
79 | /* |
---|
80 | * Allocate memory for the token we are about to parse, and insert |
---|
81 | * it in the linked list. |
---|
82 | */ |
---|
83 | cpnt = (struct condition *) malloc(sizeof(struct condition)); |
---|
84 | memset(cpnt, 0, sizeof(struct condition)); |
---|
85 | if( last == NULL ) |
---|
86 | { |
---|
87 | list = last = cpnt; |
---|
88 | } |
---|
89 | else |
---|
90 | { |
---|
91 | last->next = cpnt; |
---|
92 | last = cpnt; |
---|
93 | } |
---|
94 | |
---|
95 | /* |
---|
96 | * Determine what type of operation this token represents. |
---|
97 | */ |
---|
98 | if( *pnt == '-' && pnt[1] == 'a' ) |
---|
99 | { |
---|
100 | cpnt->op = op_and; |
---|
101 | pnt += 2; |
---|
102 | continue; |
---|
103 | } |
---|
104 | |
---|
105 | if( *pnt == '-' && pnt[1] == 'o' ) |
---|
106 | { |
---|
107 | cpnt->op = op_or; |
---|
108 | pnt += 2; |
---|
109 | continue; |
---|
110 | } |
---|
111 | |
---|
112 | if( *pnt == '!' && pnt[1] == '=' ) |
---|
113 | { |
---|
114 | cpnt->op = op_neq; |
---|
115 | pnt += 2; |
---|
116 | continue; |
---|
117 | } |
---|
118 | |
---|
119 | if( *pnt == '=') |
---|
120 | { |
---|
121 | cpnt->op = op_eq; |
---|
122 | pnt += 1; |
---|
123 | continue; |
---|
124 | } |
---|
125 | |
---|
126 | if( *pnt == '!') |
---|
127 | { |
---|
128 | cpnt->op = op_bang; |
---|
129 | pnt += 1; |
---|
130 | continue; |
---|
131 | } |
---|
132 | |
---|
133 | if( *pnt != '"' ) goto error; /* This cannot be right. */ |
---|
134 | pnt++; |
---|
135 | if( *pnt == '`' ) |
---|
136 | { |
---|
137 | cpnt->op = op_shellcmd; |
---|
138 | pnt1 = varname; |
---|
139 | pnt++; |
---|
140 | while(*pnt && *pnt != '`') *pnt1++ = *pnt++; |
---|
141 | *pnt1++ = '\0'; |
---|
142 | cpnt->variable.str = strdup(varname); |
---|
143 | if( *pnt == '`' ) pnt++; |
---|
144 | if( *pnt == '"' ) pnt++; |
---|
145 | continue; |
---|
146 | } |
---|
147 | if( *pnt == '$' ) |
---|
148 | { |
---|
149 | cpnt->op = op_variable; |
---|
150 | pnt1 = varname; |
---|
151 | pnt++; |
---|
152 | while(*pnt && *pnt != '"') *pnt1++ = *pnt++; |
---|
153 | *pnt1++ = '\0'; |
---|
154 | cpnt->variable.str = strdup(varname); |
---|
155 | if( *pnt == '"' ) pnt++; |
---|
156 | continue; |
---|
157 | } |
---|
158 | |
---|
159 | cpnt->op = op_constant; |
---|
160 | pnt1 = varname; |
---|
161 | while(*pnt && *pnt != '"') *pnt1++ = *pnt++; |
---|
162 | *pnt1++ = '\0'; |
---|
163 | cpnt->variable.str = strdup(varname); |
---|
164 | if( *pnt == '"' ) pnt++; |
---|
165 | continue; |
---|
166 | } |
---|
167 | |
---|
168 | return list; |
---|
169 | |
---|
170 | error: |
---|
171 | if(current_file != NULL) |
---|
172 | fprintf(stderr, |
---|
173 | "Bad if clause at line %d(%s):%s\n", lineno, current_file, opnt); |
---|
174 | else |
---|
175 | fprintf(stderr, |
---|
176 | "Bad if clause at line %d:%s\n", lineno, opnt); |
---|
177 | return NULL; |
---|
178 | } |
---|
179 | |
---|
180 | /* |
---|
181 | * This function looks for a quoted string, from the input buffer, and |
---|
182 | * returns a pointer to a copy of this string. Any characters in |
---|
183 | * the string that need to be "quoted" have a '\' character inserted |
---|
184 | * in front - this way we can directly write these strings into |
---|
185 | * wish scripts. |
---|
186 | */ |
---|
187 | static char * get_qstring(char *pnt, char ** labl) |
---|
188 | { |
---|
189 | char quotechar; |
---|
190 | char newlabel[1024]; |
---|
191 | char * pnt1; |
---|
192 | char * pnt2; |
---|
193 | |
---|
194 | while( *pnt && *pnt != '"' && *pnt != '\'') pnt++; |
---|
195 | if (*pnt == '\0') return pnt; |
---|
196 | |
---|
197 | quotechar = *pnt++; |
---|
198 | pnt1 = newlabel; |
---|
199 | while(*pnt && *pnt != quotechar && pnt[-1] != '\\') |
---|
200 | { |
---|
201 | /* |
---|
202 | * Quote the character if we need to. |
---|
203 | */ |
---|
204 | if( *pnt == '"' || *pnt == '\'' || *pnt == '[' || *pnt == ']') |
---|
205 | *pnt1++ = '\\'; |
---|
206 | |
---|
207 | *pnt1++ = *pnt++; |
---|
208 | } |
---|
209 | *pnt1++ = '\0'; |
---|
210 | |
---|
211 | pnt2 = (char *) malloc(strlen(newlabel) + 1); |
---|
212 | strcpy(pnt2, newlabel); |
---|
213 | *labl = pnt2; |
---|
214 | |
---|
215 | /* |
---|
216 | * Skip over last quote, and whitespace. |
---|
217 | */ |
---|
218 | pnt++; |
---|
219 | pnt = skip_whitespace(pnt); |
---|
220 | return pnt; |
---|
221 | } |
---|
222 | |
---|
223 | static char * parse_choices(struct kconfig * choice_kcfg, char * pnt) |
---|
224 | { |
---|
225 | struct kconfig * kcfg; |
---|
226 | int index = 1; |
---|
227 | |
---|
228 | /* |
---|
229 | * Choices appear in pairs of strings. The parse is fairly trivial. |
---|
230 | */ |
---|
231 | while(1) |
---|
232 | { |
---|
233 | pnt = skip_whitespace(pnt); |
---|
234 | if(*pnt == '\0') break; |
---|
235 | |
---|
236 | kcfg = (struct kconfig *) malloc(sizeof(struct kconfig)); |
---|
237 | memset(kcfg, 0, sizeof(struct kconfig)); |
---|
238 | kcfg->tok = tok_choice; |
---|
239 | if( clast != NULL ) |
---|
240 | { |
---|
241 | clast->next = kcfg; |
---|
242 | clast = kcfg; |
---|
243 | } |
---|
244 | else |
---|
245 | { |
---|
246 | clast = config = kcfg; |
---|
247 | } |
---|
248 | |
---|
249 | pnt = get_string(pnt, &kcfg->label); |
---|
250 | pnt = skip_whitespace(pnt); |
---|
251 | pnt = get_string(pnt, &kcfg->optionname); |
---|
252 | kcfg->choice_label = choice_kcfg; |
---|
253 | kcfg->choice_value = index++; |
---|
254 | if( strcmp(kcfg->label, choice_kcfg->value) == 0 ) |
---|
255 | choice_kcfg->choice_value = kcfg->choice_value; |
---|
256 | } |
---|
257 | |
---|
258 | return pnt; |
---|
259 | } |
---|
260 | |
---|
261 | |
---|
262 | /* |
---|
263 | * This function grabs one text token from the input buffer |
---|
264 | * and returns a pointer to a copy of just the identifier. |
---|
265 | * This can be either a variable name (i.e. CONFIG_NET), |
---|
266 | * or it could be the default value for the option. |
---|
267 | */ |
---|
268 | static char * get_string(char *pnt, char ** labl) |
---|
269 | { |
---|
270 | char newlabel[1024]; |
---|
271 | char * pnt1; |
---|
272 | char * pnt2; |
---|
273 | |
---|
274 | if (*pnt == '\0') return pnt; |
---|
275 | |
---|
276 | pnt1 = newlabel; |
---|
277 | while(*pnt && *pnt != ' ' && *pnt != '\t') |
---|
278 | { |
---|
279 | *pnt1++ = *pnt++; |
---|
280 | } |
---|
281 | *pnt1++ = '\0'; |
---|
282 | |
---|
283 | pnt2 = (char *) malloc(strlen(newlabel) + 1); |
---|
284 | strcpy(pnt2, newlabel); |
---|
285 | *labl = pnt2; |
---|
286 | |
---|
287 | if( *pnt ) pnt++; |
---|
288 | return pnt; |
---|
289 | } |
---|
290 | |
---|
291 | |
---|
292 | /* |
---|
293 | * Top level parse function. Input pointer is one complete line from config.in |
---|
294 | * and the result is that we create a token that describes this line |
---|
295 | * and insert it into our linked list. |
---|
296 | */ |
---|
297 | void parse(char * pnt) { |
---|
298 | enum token tok; |
---|
299 | struct kconfig * kcfg; |
---|
300 | char tmpbuf[24],fake_if[1024]; |
---|
301 | |
---|
302 | /* |
---|
303 | * Ignore comments and leading whitespace. |
---|
304 | */ |
---|
305 | |
---|
306 | pnt = skip_whitespace(pnt); |
---|
307 | while( *pnt && (*pnt == ' ' || *pnt == '\t')) pnt++; |
---|
308 | if(! *pnt ) return; |
---|
309 | if( *pnt == '#' ) return; |
---|
310 | |
---|
311 | /* |
---|
312 | * Now categorize the next token. |
---|
313 | */ |
---|
314 | tok = tok_unknown; |
---|
315 | if (strncmp(pnt, "mainmenu_name", 13) == 0) |
---|
316 | { |
---|
317 | tok = tok_menuname; |
---|
318 | pnt += 13; |
---|
319 | } |
---|
320 | else if (strncmp(pnt, "source", 6) == 0) |
---|
321 | { |
---|
322 | pnt += 7; |
---|
323 | pnt = skip_whitespace(pnt); |
---|
324 | do_source(pnt); |
---|
325 | return; |
---|
326 | } |
---|
327 | else if (strncmp(pnt, "mainmenu_option", 15) == 0) |
---|
328 | { |
---|
329 | menus_seen++; |
---|
330 | tok = tok_menuoption; |
---|
331 | pnt += 15; |
---|
332 | } |
---|
333 | else if (strncmp(pnt, "$MAKE ", 6) == 0) |
---|
334 | { |
---|
335 | tok = tok_make; |
---|
336 | } |
---|
337 | else if (strncmp(pnt, "comment", 7) == 0) |
---|
338 | { |
---|
339 | tok = tok_comment; |
---|
340 | pnt += 7; |
---|
341 | } |
---|
342 | else if (strncmp(pnt, "choice", 6) == 0) |
---|
343 | { |
---|
344 | tok = tok_choose; |
---|
345 | pnt += 6; |
---|
346 | } |
---|
347 | else if (strncmp(pnt, "define_bool", 11) == 0) |
---|
348 | { |
---|
349 | tok = tok_define; |
---|
350 | pnt += 11; |
---|
351 | } |
---|
352 | else if (strncmp(pnt, "bool", 4) == 0) |
---|
353 | { |
---|
354 | tok = tok_bool; |
---|
355 | pnt += 4; |
---|
356 | } |
---|
357 | else if (strncmp(pnt, "tristate", 8) == 0) |
---|
358 | { |
---|
359 | tok = tok_tristate; |
---|
360 | pnt += 8; |
---|
361 | } |
---|
362 | else if (strncmp(pnt, "dep_tristate", 12) == 0) |
---|
363 | { |
---|
364 | tok = tok_dep_tristate; |
---|
365 | pnt += 12; |
---|
366 | } |
---|
367 | else if (strncmp(pnt, "int", 3) == 0) |
---|
368 | { |
---|
369 | tok = tok_int; |
---|
370 | pnt += 3; |
---|
371 | } |
---|
372 | else if (strncmp(pnt, "hex", 3) == 0) |
---|
373 | { |
---|
374 | tok = tok_hex; |
---|
375 | pnt += 3; |
---|
376 | } |
---|
377 | else if (strncmp(pnt, "if", 2) == 0) |
---|
378 | { |
---|
379 | tok = tok_if; |
---|
380 | pnt += 2; |
---|
381 | } |
---|
382 | else if (strncmp(pnt, "else", 4) == 0) |
---|
383 | { |
---|
384 | tok = tok_else; |
---|
385 | pnt += 4; |
---|
386 | } |
---|
387 | else if (strncmp(pnt, "fi", 2) == 0) |
---|
388 | { |
---|
389 | tok = tok_fi; |
---|
390 | pnt += 2; |
---|
391 | } |
---|
392 | else if (strncmp(pnt, "endmenu", 7) == 0) |
---|
393 | { |
---|
394 | tok = tok_endmenu; |
---|
395 | pnt += 7; |
---|
396 | } |
---|
397 | |
---|
398 | if( tok == tok_unknown) |
---|
399 | { |
---|
400 | if( clast != NULL && clast->tok == tok_if |
---|
401 | && strcmp(pnt,"then") == 0) return; |
---|
402 | if( current_file != NULL ) |
---|
403 | fprintf(stderr, "unknown command=%s(%s %d)\n", pnt, |
---|
404 | current_file, lineno); |
---|
405 | else |
---|
406 | fprintf(stderr, "unknown command=%s(%d)\n", pnt,lineno); |
---|
407 | return; |
---|
408 | } |
---|
409 | |
---|
410 | /* |
---|
411 | * Allocate memory for this item, and attach it to the end of the linked |
---|
412 | * list. |
---|
413 | */ |
---|
414 | kcfg = (struct kconfig *) malloc(sizeof(struct kconfig)); |
---|
415 | memset(kcfg, 0, sizeof(struct kconfig)); |
---|
416 | kcfg->tok = tok; |
---|
417 | if( clast != NULL ) |
---|
418 | { |
---|
419 | clast->next = kcfg; |
---|
420 | clast = kcfg; |
---|
421 | } |
---|
422 | else |
---|
423 | { |
---|
424 | clast = config = kcfg; |
---|
425 | } |
---|
426 | |
---|
427 | pnt = skip_whitespace(pnt); |
---|
428 | |
---|
429 | /* |
---|
430 | * Now parse the remaining parts of the option, and attach the results |
---|
431 | * to the structure. |
---|
432 | */ |
---|
433 | switch (tok) |
---|
434 | { |
---|
435 | case tok_choose: |
---|
436 | pnt = get_qstring(pnt, &kcfg->label); |
---|
437 | pnt = get_qstring(pnt, &kcfg->optionname); |
---|
438 | pnt = get_string(pnt, &kcfg->value); |
---|
439 | /* |
---|
440 | * Now we need to break apart the individual options into their |
---|
441 | * own configuration structures. |
---|
442 | */ |
---|
443 | parse_choices(kcfg, kcfg->optionname); |
---|
444 | free(kcfg->optionname); |
---|
445 | sprintf(tmpbuf, "tmpvar_%d", choose_number++); |
---|
446 | kcfg->optionname = strdup(tmpbuf); |
---|
447 | break; |
---|
448 | case tok_define: |
---|
449 | pnt = get_string(pnt, &kcfg->optionname); |
---|
450 | if(*pnt == 'y' || *pnt == 'Y' ) kcfg->value = "1"; |
---|
451 | if(*pnt == 'n' || *pnt == 'N' ) kcfg->value = "0"; |
---|
452 | if(*pnt == 'm' || *pnt == 'M' ) kcfg->value = "2"; |
---|
453 | break; |
---|
454 | case tok_menuname: |
---|
455 | pnt = get_qstring(pnt, &kcfg->label); |
---|
456 | break; |
---|
457 | case tok_bool: |
---|
458 | case tok_tristate: |
---|
459 | pnt = get_qstring(pnt, &kcfg->label); |
---|
460 | pnt = get_string(pnt, &kcfg->optionname); |
---|
461 | break; |
---|
462 | case tok_int: |
---|
463 | case tok_hex: |
---|
464 | pnt = get_qstring(pnt, &kcfg->label); |
---|
465 | pnt = get_string(pnt, &kcfg->optionname); |
---|
466 | pnt = get_string(pnt, &kcfg->value); |
---|
467 | break; |
---|
468 | case tok_dep_tristate: |
---|
469 | pnt = get_qstring(pnt, &kcfg->label); |
---|
470 | pnt = get_string(pnt, &kcfg->optionname); |
---|
471 | pnt = skip_whitespace(pnt); |
---|
472 | if( *pnt == '$') pnt++; |
---|
473 | pnt = get_string(pnt, &kcfg->depend.str); |
---|
474 | |
---|
475 | /* |
---|
476 | * Create a conditional for this object's dependency. |
---|
477 | * |
---|
478 | * We can't use "!= n" because this is internally converted to "!= 0" |
---|
479 | * and if UMSDOS depends on MSDOS which depends on FAT, then when FAT |
---|
480 | * is disabled MSDOS has 16 added to its value, making UMSDOS fully |
---|
481 | * available. Whew. |
---|
482 | * |
---|
483 | * This is more of a hack than a fix. Nested "if" conditionals are |
---|
484 | * probably affected too - that +/- 16 affects things in too many |
---|
485 | * places. But this should do for now. |
---|
486 | */ |
---|
487 | sprintf(fake_if,"[ \"$%s\" = \"y\" -o \"$%s\" = \"m\" ]; then", |
---|
488 | kcfg->depend.str,kcfg->depend.str); |
---|
489 | kcfg->cond = parse_if(fake_if); |
---|
490 | if(kcfg->cond == NULL ) |
---|
491 | { |
---|
492 | exit(1); |
---|
493 | } |
---|
494 | break; |
---|
495 | case tok_comment: |
---|
496 | pnt = get_qstring(pnt, &kcfg->label); |
---|
497 | if( koption != NULL ) |
---|
498 | { |
---|
499 | pnt = get_qstring(pnt, &kcfg->label); |
---|
500 | koption->label = kcfg->label; |
---|
501 | koption = NULL; |
---|
502 | } |
---|
503 | break; |
---|
504 | case tok_menuoption: |
---|
505 | if( strncmp(pnt, "next_comment", 12) == 0) |
---|
506 | { |
---|
507 | koption = kcfg; |
---|
508 | } |
---|
509 | else |
---|
510 | { |
---|
511 | pnt = get_qstring(pnt, &kcfg->label); |
---|
512 | } |
---|
513 | break; |
---|
514 | case tok_make: |
---|
515 | kcfg->value=strdup(pnt); |
---|
516 | break; |
---|
517 | case tok_else: |
---|
518 | case tok_fi: |
---|
519 | case tok_endmenu: |
---|
520 | break; |
---|
521 | case tok_if: |
---|
522 | /* |
---|
523 | * Conditionals are different. For the first level parse, only |
---|
524 | * tok_if and tok_dep_tristate items have a ->cond chain attached. |
---|
525 | */ |
---|
526 | kcfg->cond = parse_if(pnt); |
---|
527 | if(kcfg->cond == NULL ) |
---|
528 | { |
---|
529 | exit(1); |
---|
530 | } |
---|
531 | break; |
---|
532 | default: |
---|
533 | exit(0); |
---|
534 | } |
---|
535 | |
---|
536 | return; |
---|
537 | } |
---|
538 | |
---|
539 | /* |
---|
540 | * Simple function to dump to the screen what the condition chain looks like. |
---|
541 | */ |
---|
542 | void dump_if(struct condition * cond) |
---|
543 | { |
---|
544 | printf(" "); |
---|
545 | while(cond != NULL ) |
---|
546 | { |
---|
547 | switch(cond->op){ |
---|
548 | case op_eq: |
---|
549 | printf(" = "); |
---|
550 | break; |
---|
551 | case op_bang: |
---|
552 | printf(" ! "); |
---|
553 | break; |
---|
554 | case op_neq: |
---|
555 | printf(" != "); |
---|
556 | break; |
---|
557 | case op_and: |
---|
558 | printf(" -a "); |
---|
559 | break; |
---|
560 | case op_lparen: |
---|
561 | printf("("); |
---|
562 | break; |
---|
563 | case op_rparen: |
---|
564 | printf(")"); |
---|
565 | break; |
---|
566 | case op_variable: |
---|
567 | printf("$%s", cond->variable.str); |
---|
568 | break; |
---|
569 | case op_constant: |
---|
570 | printf("'%s'", cond->variable.str); |
---|
571 | break; |
---|
572 | default: |
---|
573 | break; |
---|
574 | } |
---|
575 | cond = cond->next; |
---|
576 | } |
---|
577 | |
---|
578 | printf("\n"); |
---|
579 | } |
---|
580 | |
---|
581 | static int do_source(char * filename) |
---|
582 | { |
---|
583 | char buffer[1024]; |
---|
584 | int offset; |
---|
585 | int old_lineno; |
---|
586 | char * old_file; |
---|
587 | char * pnt; |
---|
588 | FILE * infile; |
---|
589 | |
---|
590 | if( strcmp(filename, "-") == 0 ) |
---|
591 | infile = stdin; |
---|
592 | else |
---|
593 | infile = fopen(filename,"r"); |
---|
594 | |
---|
595 | /* |
---|
596 | * If our cwd was in the scripts directory, we might have to go up one |
---|
597 | * to find the sourced file. |
---|
598 | */ |
---|
599 | if(!infile) { |
---|
600 | strcpy (buffer, "../"); |
---|
601 | strcat (buffer, filename); |
---|
602 | infile = fopen(buffer,"r"); |
---|
603 | } |
---|
604 | |
---|
605 | if(!infile) { |
---|
606 | fprintf(stderr,"Unable to open file %s\n", filename); |
---|
607 | return 1; |
---|
608 | } |
---|
609 | old_lineno = lineno; |
---|
610 | lineno = 0; |
---|
611 | if( infile != stdin ) { |
---|
612 | old_file = current_file; |
---|
613 | current_file = filename; |
---|
614 | } |
---|
615 | offset = 0; |
---|
616 | while(1) |
---|
617 | { |
---|
618 | fgets(&buffer[offset], sizeof(buffer) - offset, infile); |
---|
619 | if(feof(infile)) break; |
---|
620 | |
---|
621 | /* |
---|
622 | * Strip the trailing return character. |
---|
623 | */ |
---|
624 | pnt = buffer + strlen(buffer) - 1; |
---|
625 | if( *pnt == '\n') *pnt-- = 0; |
---|
626 | lineno++; |
---|
627 | if( *pnt == '\\' ) |
---|
628 | { |
---|
629 | offset = pnt - buffer; |
---|
630 | } |
---|
631 | else |
---|
632 | { |
---|
633 | parse(buffer); |
---|
634 | offset = 0; |
---|
635 | } |
---|
636 | } |
---|
637 | fclose(infile); |
---|
638 | if( infile != stdin ) { |
---|
639 | current_file = old_file; |
---|
640 | } |
---|
641 | lineno = old_lineno; |
---|
642 | return 0; |
---|
643 | } |
---|
644 | |
---|
645 | int main(int argc, char * argv[]) |
---|
646 | { |
---|
647 | #if 0 |
---|
648 | char buffer[1024]; |
---|
649 | char * pnt; |
---|
650 | struct kconfig * cfg; |
---|
651 | int i; |
---|
652 | #endif |
---|
653 | |
---|
654 | /* |
---|
655 | * Read stdin to get the top level script. |
---|
656 | */ |
---|
657 | do_source("-"); |
---|
658 | |
---|
659 | if( menus_seen == 0 ) |
---|
660 | { |
---|
661 | fprintf(stderr,"The config.in file for this platform does not support\n"); |
---|
662 | fprintf(stderr,"menus.\n"); |
---|
663 | exit(1); |
---|
664 | } |
---|
665 | /* |
---|
666 | * Input file is now parsed. Next we need to go through and attach |
---|
667 | * the correct conditions to each of the actual menu items and kill |
---|
668 | * the if/else/endif tokens from the list. We also flag the menu items |
---|
669 | * that have other things that depend upon its setting. |
---|
670 | */ |
---|
671 | fix_conditionals(config); |
---|
672 | |
---|
673 | /* |
---|
674 | * Finally, we generate the wish script. |
---|
675 | */ |
---|
676 | dump_tk_script(config); |
---|
677 | |
---|
678 | #if 0 |
---|
679 | /* |
---|
680 | * Now dump what we have so far. This is only for debugging so that |
---|
681 | * we can display what we think we have in the list. |
---|
682 | */ |
---|
683 | for(cfg = config; cfg; cfg = cfg->next) |
---|
684 | { |
---|
685 | |
---|
686 | if(cfg->cond != NULL && cfg->tok != tok_if) |
---|
687 | dump_if(cfg->cond); |
---|
688 | |
---|
689 | switch(cfg->tok) |
---|
690 | { |
---|
691 | case tok_menuname: |
---|
692 | printf("main_menuname "); |
---|
693 | break; |
---|
694 | case tok_bool: |
---|
695 | printf("bool "); |
---|
696 | break; |
---|
697 | case tok_tristate: |
---|
698 | printf("tristate "); |
---|
699 | break; |
---|
700 | case tok_dep_tristate: |
---|
701 | printf("dep_tristate "); |
---|
702 | break; |
---|
703 | case tok_int: |
---|
704 | printf("int "); |
---|
705 | break; |
---|
706 | case tok_hex: |
---|
707 | printf("hex "); |
---|
708 | break; |
---|
709 | case tok_comment: |
---|
710 | printf("comment "); |
---|
711 | break; |
---|
712 | case tok_menuoption: |
---|
713 | printf("menuoption "); |
---|
714 | break; |
---|
715 | case tok_else: |
---|
716 | printf("else"); |
---|
717 | break; |
---|
718 | case tok_fi: |
---|
719 | printf("fi"); |
---|
720 | break; |
---|
721 | case tok_if: |
---|
722 | printf("if"); |
---|
723 | break; |
---|
724 | default: |
---|
725 | } |
---|
726 | |
---|
727 | switch(cfg->tok) |
---|
728 | { |
---|
729 | case tok_menuoption: |
---|
730 | case tok_comment: |
---|
731 | case tok_menuname: |
---|
732 | printf("%s\n", cfg->label); |
---|
733 | break; |
---|
734 | case tok_bool: |
---|
735 | case tok_tristate: |
---|
736 | case tok_dep_tristate: |
---|
737 | case tok_int: |
---|
738 | case tok_hex: |
---|
739 | printf("%s %s\n", cfg->label, cfg->optionname); |
---|
740 | break; |
---|
741 | case tok_if: |
---|
742 | dump_if(cfg->cond); |
---|
743 | break; |
---|
744 | case tok_nop: |
---|
745 | case tok_endmenu: |
---|
746 | break; |
---|
747 | default: |
---|
748 | printf("\n"); |
---|
749 | } |
---|
750 | } |
---|
751 | #endif |
---|
752 | |
---|
753 | return 0; |
---|
754 | |
---|
755 | } |
---|