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Revision 1.7 - (show annotations)
Thu Aug 5 09:48:32 2004 UTC (13 years, 4 months ago) by bertho
Branch: MAIN
CVS Tags: REL_1_5_0
Changes since 1.6: +1 -0 lines
Make sure that the HEAD tag doesn't get zapped by tag_ignore/tag_negate
1 /*
2 * CvsGraph graphical representation generator of brances and revisions
3 * of a file in cvs/rcs.
4 *
5 * Copyright (C) 2001 B. Stultiens
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 */
21
22 %{
23 #define YYERROR_VERBOSE 1
24
25 #include <stdio.h>
26 #include <stdlib.h>
27 #include <string.h>
28 #include <assert.h>
29
30 #include <gd.h> /* For gdFontPtr in cvsgraph.h */
31 #include "cvsgraph.h"
32 #include "utils.h"
33 #include "rcs.h"
34
35 rcsfile_t *rcsfile;
36
37 static tag_t *new_tag(char *s, char *r);
38 static tags_t *new_tags(tag_t *s);
39 static tags_t *add_tags(tags_t *s, tag_t *t);
40 static idrev_t *new_idrev(char *s, char *r);
41 static idrevs_t *new_idrevs(idrev_t *s);
42 static idrevs_t *add_idrevs(idrevs_t *s, idrev_t *t);
43 static ids_t *new_ids(char *s);
44 static ids_t *add_ids(ids_t *s, char *t);
45 static revs_t *new_revs(char *s);
46 static revs_t *add_revs(revs_t *s, char *t);
47 static dtext_t *new_dtext(char *n, char *l, char *t);
48 static dtexts_t *add_dtexts(dtexts_t *s, dtext_t *t);
49 static delta_t *new_delta(char *rev, char *date, char *author, char *state, revs_t *branches, char *next);
50 static deltas_t *add_deltas(deltas_t *s, delta_t *t);
51 static rcsfile_t *new_rcsfile(char *head, char *branch, ids_t *access, tags_t *tags,
52 idrevs_t *locks, int strict, char *comment, char *expand);
53
54 %}
55
56 %union{
57 int i;
58 char *str;
59 tag_t *tag;
60 tags_t *tags;
61 idrev_t *idrev;
62 idrevs_t *idrevs;
63 ids_t *ids;
64 revs_t *revs;
65 dtext_t *dtext;
66 dtexts_t *dtexts;
67 delta_t *delta;
68 deltas_t *deltas;
69 rcsfile_t *rcsfile;
70 }
71
72 %token tHEAD tBRANCH tACCESS tSYMBOLS tLOCKS tSTRICT tCOMMENT
73 %token tEXPAND tDATE tAUTHOR tSTATE tBRANCHES tNEXT
74 %token tDESC tLOG tTEXT
75 %token tOWNER tGROUP tPERMISSIONS tSPECIAL tSYMLINK tHARDLINKS
76 %token tNAMESPACE tDEAD
77 %token <str> tNEWPHRASE
78 %token <str> tSTRING tREV tID tSYM
79
80
81 %type <str> ostr orev oid obranch ocomment oexpand desc idorstr
82 %type <tag> tag
83 %type <tags> tags otags
84 %type <idrev> idrev
85 %type <idrevs> idrevs oidrevs
86 %type <ids> ids oids
87 %type <revs> revs orevs
88 %type <i> ostrict
89 %type <dtext> dtext
90 %type <dtexts> dtexts
91 %type <delta> delta
92 %type <deltas> deltas
93 %type <rcsfile> admin
94
95 %%
96 rcsfile : admin deltas desc {
97 rcsfile = $1;
98 rcsfile->deltas = $2;
99 rcsfile->desc = $3;
100 rcsfile->dtexts = NULL;
101 if(rcsfile->head)
102 {
103 char *h = xstrdup("HEAD");
104 char *r = xstrdup(rcsfile->head->rev);
105 tag_t *t = new_tag(h, r);
106 t->ignore = -1; /* Make sure it doesn't get zapped */
107 rcsfile->tags = add_tags(rcsfile->tags, t);
108 }
109 if(rcsfile->branch)
110 {
111 char *h = xstrdup("MAIN");
112 char *r = xstrdup(rcsfile->branch->rev);
113 tag_t *t = new_tag(h, r);
114 t->rev->isbranch = 1;
115 rcsfile->tags = add_tags(rcsfile->tags, t);
116 }
117 /* Else we need to add the main tag later because the
118 * trunk is reversed in order and the primary revision
119 * numbers can vary.
120 */
121 if(!conf.parse_logs)
122 {
123 /* Return from the yyparse() call early to avoid parsing
124 * of the possibly extremely large deltatext. This speeds
125 * up parsing of binary files by a very large factor.
126 */
127 return 0;
128 }
129 }
130
131 /* This is trailing deltatext context and possibly ignored */
132 dtexts { rcsfile->dtexts = $5; }
133 ;
134
135 admin : tHEAD orev ';'
136 obranch
137 tACCESS { set_id(); } oids ';'
138 tSYMBOLS { set_sym(); } otags ';'
139 tLOCKS { set_id(); } oidrevs ';' ostrict
140 ocomment
141 oexpand
142 ophrases { $$ = new_rcsfile($2, $4, $7, $11, $15, $17, $18, $19); }
143 ;
144
145 ostrict : /* Empty */ { $$ = 0; }
146 | tSTRICT ';' { $$ = 1; }
147 ;
148
149 obranch : /* Empty */ { $$ = NULL; }
150 | tBRANCH orev ';' { $$ = $2; }
151 ;
152
153 ocomment: /* Empty */ { $$ = NULL; }
154 | tCOMMENT ostr ';' { $$ = $2; }
155 ;
156
157 oexpand : /* Empty */ { $$ = NULL; }
158 | tEXPAND ostr ';' { $$ = $2; }
159 ;
160
161 deltas : /* Empty */ { $$ = NULL; }
162 | deltas delta { $$ = add_deltas($1, $2); }
163 ;
164
165 delta : tREV
166 tDATE tREV ';'
167 tAUTHOR { set_author(); } idorstr ';'
168 tSTATE { set_id(); } oid ';'
169 tBRANCHES orevs ';'
170 tNEXT orev ';'
171 ophrases { $$ = new_delta($1, $3, $7, $11, $14, $17); }
172 ;
173
174 idorstr : tID { $$ = $1; }
175 | tSTRING { $$ = $1; }
176 ;
177
178 desc : tDESC tSTRING { $$ = $2; }
179 ;
180
181 dtexts : /* Empty */ { $$ = NULL; }
182 | dtexts dtext { $$ = add_dtexts($1, $2); }
183 ;
184
185 dtext : tREV
186 tLOG tSTRING
187 ophrases
188 tTEXT { set_skipstr(); } tSTRING { $$ = new_dtext($1, $3, $7); }
189 ;
190
191 ophrases: /* Empty */
192 | ophrases phrase
193 ;
194
195 phrase : tNEWPHRASE { set_skip(); } ';' {
196 yywarning("Unrecognised `newphrase´ keyword '%s' skipped", $1);
197 xfree($1);
198 }
199 | cvskw { set_skip(); } ';' { yywarning("CVS extended keyword skipped"); }
200 | otherkw { set_skip(); } ';' { yywarning("Other extended keyword"); }
201 ;
202
203 cvskw : tOWNER
204 | tGROUP
205 | tPERMISSIONS
206 | tSPECIAL
207 | tSYMLINK
208 | tHARDLINKS
209 ;
210
211 otherkw : tNAMESPACE
212 | tDEAD
213 ;
214
215 ostr : /* Empty */ { $$ = NULL; }
216 | tSTRING { $$ = $1; }
217 ;
218
219 orev : /* Empty */ { $$ = NULL; }
220 | tREV { $$ = $1; }
221 ;
222
223 orevs : /* Empty */ { $$ = NULL; }
224 | revs { $$ = $1; }
225 ;
226
227 revs : tREV { $$ = new_revs($1); }
228 | revs tREV { $$ = add_revs($1, $2); }
229 ;
230
231 oid : /* Empty */ { $$ = NULL; }
232 | tID { $$ = $1; }
233 ;
234
235 oids : /* Empty */ { $$ = NULL; }
236 | ids { $$ = $1; }
237 ;
238
239 ids : tID { $$ = new_ids($1); }
240 | ids tID { set_id(); $$ = add_ids($1, $2); }
241 ;
242
243 oidrevs : /* Empty */ { $$ = NULL; }
244 | idrevs { $$ = $1; }
245 ;
246
247 idrevs : idrev { $$ = new_idrevs($1); }
248 | idrevs idrev { $$ = add_idrevs($1, $2); }
249 ;
250
251 idrev : tID ':' tREV { set_id(); $$ = new_idrev($1, $3); }
252 ;
253
254 otags : /* Empty */ { $$ = NULL; }
255 | tags { $$ = $1; }
256 ;
257
258 tags : tag { if($1) $$ = new_tags($1); else $$ = NULL; }
259 | tags tag { if($1 && $2) $$ = add_tags($1, $2); else if($2) $$ = new_tags($2); else $$ = $1; }
260 ;
261
262 tag : tSYM ':' tREV { set_sym(); $$ = new_tag($1, $3); }
263 /* Zap the additional tag-info from CVSNT */
264 /* This is a bit of a hack, but it is necessary to do like this */
265 /* because the parser is not allowed to do any look-ahead on ':'. */
266 /* Otherwise, we would have a tNEWPHRASE hit because we cannot set */
267 /* set_sym() before the lexer gets the next token. */
268 | ':' tREV ':' tSTRING { set_sym(); $$ = NULL; }
269 ;
270
271 %%
272 static rev_t *make_rev(char *s)
273 {
274 char *cptr;
275 int dots = 0;
276 rev_t *r;
277
278 if(!s)
279 return NULL;
280
281 r = xmalloc(sizeof(*r));
282
283 for(cptr = s; *cptr; cptr++)
284 {
285 if(*cptr == '.')
286 dots++;
287 }
288 if(!dots)
289 {
290 r->rev = xstrdup("");
291 r->branch = xstrdup(s);
292 r->isbranch = 1;
293 }
294 else if(!*s)
295 {
296 r->rev = xstrdup("?.?");
297 r->branch = xstrdup("?");
298 }
299 else if(dots & 1)
300 {
301 char *t;
302 r->rev = s;
303 r->branch = xstrdup(s);
304 cptr = strrchr(r->branch, '.');
305 assert(cptr != NULL);
306 *cptr = '\0';
307 t = strrchr(r->branch, '.');
308 if((t&& !strcmp(t+1, "0")) || (!t && !strcmp(r->branch, "0")))
309 {
310 /* Magic branch numbers "x.x.0.x" */
311 r->isbranch = 1;
312 if(t)
313 strcpy(t+1, cptr+1);
314 else
315 strcpy(r->branch, cptr+1);
316 }
317 }
318 else
319 {
320 r->isbranch = 1;
321 r->branch = s;
322 r->rev = xmalloc(strlen(s) + 3);
323 strcpy(r->rev, s);
324 strcat(r->rev, ".?");
325 }
326 return r;
327 }
328
329
330 static tag_t *new_tag(char *s, char *r)
331 {
332 tag_t *t = xmalloc(sizeof(*t));
333 t->tag = s;
334 t->rev = make_rev(r);
335 return t;
336 }
337
338 static tags_t *new_tags(tag_t *s)
339 {
340 tags_t *t = xmalloc(sizeof(*t));
341 t->ntags = 1;
342 t->tags = xmalloc(sizeof(t->tags[0]));
343 t->tags[0] = s;
344 return t;
345 }
346
347 static tags_t *add_tags(tags_t *s, tag_t *t)
348 {
349 if(!s)
350 return new_tags(t);
351 s->tags = xrealloc(s->tags, (s->ntags+1) * sizeof(s->tags[0]));
352 s->tags[s->ntags] = t;
353 s->ntags++;
354 return s;
355 }
356
357 static idrev_t *new_idrev(char *s, char *r)
358 {
359 idrev_t *t = xmalloc(sizeof(*t));
360 t->id = s;
361 t->rev = make_rev(r);
362 return t;
363 }
364
365 static idrevs_t *new_idrevs(idrev_t *s)
366 {
367 idrevs_t *t = xmalloc(sizeof(*t));
368 t->nidrevs = 1;
369 t->idrevs = xmalloc(sizeof(t->idrevs[0]));
370 t->idrevs[0] = s;
371 return t;
372 }
373
374 static idrevs_t *add_idrevs(idrevs_t *s, idrev_t *t)
375 {
376 if(!s)
377 return new_idrevs(t);
378 s->idrevs = xrealloc(s->idrevs, (s->nidrevs+1) * sizeof(s->idrevs[0]));
379 s->idrevs[s->nidrevs] = t;
380 s->nidrevs++;
381 return s;
382 }
383
384 static ids_t *new_ids(char *s)
385 {
386 ids_t *t = xmalloc(sizeof(*t));
387 t->nids = 1;
388 t->ids = xmalloc(sizeof(t->ids[0]));
389 t->ids[0] = s;
390 return t;
391 }
392
393 static ids_t *add_ids(ids_t *s, char *t)
394 {
395 s->ids = xrealloc(s->ids, (s->nids+1) * sizeof(s->ids[0]));
396 s->ids[s->nids] = t;
397 s->nids++;
398 return s;
399 }
400
401 static revs_t *new_revs(char *s)
402 {
403 revs_t *t = xmalloc(sizeof(*t));
404 t->nrevs = 1;
405 t->revs = xmalloc(sizeof(t->revs[0]));
406 t->revs[0] = make_rev(s);
407 return t;
408 }
409
410 static revs_t *add_revs(revs_t *s, char *t)
411 {
412 s->revs = xrealloc(s->revs, (s->nrevs+1) * sizeof(s->revs[0]));
413 s->revs[s->nrevs] = make_rev(t);
414 s->nrevs++;
415 return s;
416 }
417
418 static dtext_t *new_dtext(char *n, char *l, char *t)
419 {
420 dtext_t *d = xmalloc(sizeof(*d));
421 d->rev = make_rev(n);
422 d->log = l;
423 d->text = t;
424 return d;
425 }
426
427 static dtexts_t *add_dtexts(dtexts_t *s, dtext_t *t)
428 {
429 if(!s)
430 s = xmalloc(sizeof(*s));
431 s->dtexts = xrealloc(s->dtexts, (s->ndtexts+1) * sizeof(s->dtexts[0]));
432 s->dtexts[s->ndtexts] = t;
433 s->ndtexts++;
434 return s;
435 }
436
437 static delta_t *new_delta(char *rev, char *date, char *author, char *state, revs_t *branches, char *next)
438 {
439 delta_t *d = xmalloc(sizeof(*d));
440 d->rev = make_rev(rev);
441 d->date = date;
442 d->author = author;
443 d->state = state;
444 d->branches = branches;
445 d->next = make_rev(next);
446 return d;
447 }
448
449 static deltas_t *add_deltas(deltas_t *s, delta_t *t)
450 {
451 if(!s)
452 s = xmalloc(sizeof(*s));
453 s->deltas = xrealloc(s->deltas, (s->ndeltas+1) * sizeof(s->deltas[0]));
454 s->deltas[s->ndeltas] = t;
455 s->ndeltas++;
456 return s;
457 }
458
459 static rcsfile_t *new_rcsfile(char *head, char *branch, ids_t *access, tags_t *tags,
460 idrevs_t *locks, int strict, char *comment, char *expand)
461 {
462 rcsfile_t *r = xmalloc(sizeof(*r));
463 r->head = make_rev(head);
464 r->branch = make_rev(branch);
465 r->access = access;
466 r->tags = tags;
467 r->locks = locks;
468 r->strict = strict;
469 r->comment = comment;
470 r->expand = expand;
471 return r;
472 }
473

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