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Diffstat (limited to 'src/regress/lib/libc/regex/main.c')
-rw-r--r--src/regress/lib/libc/regex/main.c512
1 files changed, 512 insertions, 0 deletions
diff --git a/src/regress/lib/libc/regex/main.c b/src/regress/lib/libc/regex/main.c
new file mode 100644
index 0000000000..8d88a8b9b8
--- /dev/null
+++ b/src/regress/lib/libc/regex/main.c
@@ -0,0 +1,512 @@
1/* $NetBSD: main.c,v 1.2 1995/04/20 22:39:51 cgd Exp $ */
2
3#include <stdio.h>
4#include <string.h>
5#include <sys/types.h>
6#include <regex.h>
7#include <assert.h>
8
9#include "main.ih"
10
11char *progname;
12int debug = 0;
13int line = 0;
14int status = 0;
15
16int copts = REG_EXTENDED;
17int eopts = 0;
18regoff_t startoff = 0;
19regoff_t endoff = 0;
20
21
22extern int split();
23extern void regprint();
24
25/*
26 - main - do the simple case, hand off to regress() for regression
27 */
28main(argc, argv)
29int argc;
30char *argv[];
31{
32 regex_t re;
33# define NS 10
34 regmatch_t subs[NS];
35 char erbuf[100];
36 int err;
37 size_t len;
38 int c;
39 int errflg = 0;
40 register int i;
41 extern int optind;
42 extern char *optarg;
43
44 progname = argv[0];
45
46 while ((c = getopt(argc, argv, "c:e:S:E:x")) != EOF)
47 switch (c) {
48 case 'c': /* compile options */
49 copts = options('c', optarg);
50 break;
51 case 'e': /* execute options */
52 eopts = options('e', optarg);
53 break;
54 case 'S': /* start offset */
55 startoff = (regoff_t)atoi(optarg);
56 break;
57 case 'E': /* end offset */
58 endoff = (regoff_t)atoi(optarg);
59 break;
60 case 'x': /* Debugging. */
61 debug++;
62 break;
63 case '?':
64 default:
65 errflg++;
66 break;
67 }
68 if (errflg) {
69 fprintf(stderr, "usage: %s ", progname);
70 fprintf(stderr, "[-c copt][-C][-d] [re]\n");
71 exit(2);
72 }
73
74 if (optind >= argc) {
75 regress(stdin);
76 exit(status);
77 }
78
79 err = regcomp(&re, argv[optind++], copts);
80 if (err) {
81 len = regerror(err, &re, erbuf, sizeof(erbuf));
82 fprintf(stderr, "error %s, %d/%d `%s'\n",
83 eprint(err), len, sizeof(erbuf), erbuf);
84 exit(status);
85 }
86 regprint(&re, stdout);
87
88 if (optind >= argc) {
89 regfree(&re);
90 exit(status);
91 }
92
93 if (eopts&REG_STARTEND) {
94 subs[0].rm_so = startoff;
95 subs[0].rm_eo = strlen(argv[optind]) - endoff;
96 }
97 err = regexec(&re, argv[optind], (size_t)NS, subs, eopts);
98 if (err) {
99 len = regerror(err, &re, erbuf, sizeof(erbuf));
100 fprintf(stderr, "error %s, %d/%d `%s'\n",
101 eprint(err), len, sizeof(erbuf), erbuf);
102 exit(status);
103 }
104 if (!(copts&REG_NOSUB)) {
105 len = (int)(subs[0].rm_eo - subs[0].rm_so);
106 if (subs[0].rm_so != -1) {
107 if (len != 0)
108 printf("match `%.*s'\n", len,
109 argv[optind] + subs[0].rm_so);
110 else
111 printf("match `'@%.1s\n",
112 argv[optind] + subs[0].rm_so);
113 }
114 for (i = 1; i < NS; i++)
115 if (subs[i].rm_so != -1)
116 printf("(%d) `%.*s'\n", i,
117 (int)(subs[i].rm_eo - subs[i].rm_so),
118 argv[optind] + subs[i].rm_so);
119 }
120 exit(status);
121}
122
123/*
124 - regress - main loop of regression test
125 == void regress(FILE *in);
126 */
127void
128regress(in)
129FILE *in;
130{
131 char inbuf[1000];
132# define MAXF 10
133 char *f[MAXF];
134 int nf;
135 int i;
136 char erbuf[100];
137 size_t ne;
138 char *badpat = "invalid regular expression";
139# define SHORT 10
140 char *bpname = "REG_BADPAT";
141 regex_t re;
142
143 while (fgets(inbuf, sizeof(inbuf), in) != NULL) {
144 line++;
145 if (inbuf[0] == '#' || inbuf[0] == '\n')
146 continue; /* NOTE CONTINUE */
147 inbuf[strlen(inbuf)-1] = '\0'; /* get rid of stupid \n */
148 if (debug)
149 fprintf(stdout, "%d:\n", line);
150 nf = split(inbuf, f, MAXF, "\t\t");
151 if (nf < 3) {
152 fprintf(stderr, "bad input, line %d\n", line);
153 exit(1);
154 }
155 for (i = 0; i < nf; i++)
156 if (strcmp(f[i], "\"\"") == 0)
157 f[i] = "";
158 if (nf <= 3)
159 f[3] = NULL;
160 if (nf <= 4)
161 f[4] = NULL;
162 try(f[0], f[1], f[2], f[3], f[4], options('c', f[1]));
163 if (opt('&', f[1])) /* try with either type of RE */
164 try(f[0], f[1], f[2], f[3], f[4],
165 options('c', f[1]) &~ REG_EXTENDED);
166 }
167
168 ne = regerror(REG_BADPAT, (regex_t *)NULL, erbuf, sizeof(erbuf));
169 if (strcmp(erbuf, badpat) != 0 || ne != strlen(badpat)+1) {
170 fprintf(stderr, "end: regerror() test gave `%s' not `%s'\n",
171 erbuf, badpat);
172 status = 1;
173 }
174 ne = regerror(REG_BADPAT, (regex_t *)NULL, erbuf, (size_t)SHORT);
175 if (strncmp(erbuf, badpat, SHORT-1) != 0 || erbuf[SHORT-1] != '\0' ||
176 ne != strlen(badpat)+1) {
177 fprintf(stderr, "end: regerror() short test gave `%s' not `%.*s'\n",
178 erbuf, SHORT-1, badpat);
179 status = 1;
180 }
181 ne = regerror(REG_ITOA|REG_BADPAT, (regex_t *)NULL, erbuf, sizeof(erbuf));
182 if (strcmp(erbuf, bpname) != 0 || ne != strlen(bpname)+1) {
183 fprintf(stderr, "end: regerror() ITOA test gave `%s' not `%s'\n",
184 erbuf, bpname);
185 status = 1;
186 }
187 re.re_endp = bpname;
188 ne = regerror(REG_ATOI, &re, erbuf, sizeof(erbuf));
189 if (atoi(erbuf) != (int)REG_BADPAT) {
190 fprintf(stderr, "end: regerror() ATOI test gave `%s' not `%ld'\n",
191 erbuf, (long)REG_BADPAT);
192 status = 1;
193 } else if (ne != strlen(erbuf)+1) {
194 fprintf(stderr, "end: regerror() ATOI test len(`%s') = %ld\n",
195 erbuf, (long)REG_BADPAT);
196 status = 1;
197 }
198}
199
200/*
201 - try - try it, and report on problems
202 == void try(char *f0, char *f1, char *f2, char *f3, char *f4, int opts);
203 */
204void
205try(f0, f1, f2, f3, f4, opts)
206char *f0;
207char *f1;
208char *f2;
209char *f3;
210char *f4;
211int opts; /* may not match f1 */
212{
213 regex_t re;
214# define NSUBS 10
215 regmatch_t subs[NSUBS];
216# define NSHOULD 15
217 char *should[NSHOULD];
218 int nshould;
219 char erbuf[100];
220 int err;
221 int len;
222 char *type = (opts & REG_EXTENDED) ? "ERE" : "BRE";
223 register int i;
224 char *grump;
225 char f0copy[1000];
226 char f2copy[1000];
227
228 strcpy(f0copy, f0);
229 re.re_endp = (opts&REG_PEND) ? f0copy + strlen(f0copy) : NULL;
230 fixstr(f0copy);
231 err = regcomp(&re, f0copy, opts);
232 if (err != 0 && (!opt('C', f1) || err != efind(f2))) {
233 /* unexpected error or wrong error */
234 len = regerror(err, &re, erbuf, sizeof(erbuf));
235 fprintf(stderr, "%d: %s error %s, %d/%d `%s'\n",
236 line, type, eprint(err), len,
237 sizeof(erbuf), erbuf);
238 status = 1;
239 } else if (err == 0 && opt('C', f1)) {
240 /* unexpected success */
241 fprintf(stderr, "%d: %s should have given REG_%s\n",
242 line, type, f2);
243 status = 1;
244 err = 1; /* so we won't try regexec */
245 }
246
247 if (err != 0) {
248 regfree(&re);
249 return;
250 }
251
252 strcpy(f2copy, f2);
253 fixstr(f2copy);
254
255 if (options('e', f1)&REG_STARTEND) {
256 if (strchr(f2, '(') == NULL || strchr(f2, ')') == NULL)
257 fprintf(stderr, "%d: bad STARTEND syntax\n", line);
258 subs[0].rm_so = strchr(f2, '(') - f2 + 1;
259 subs[0].rm_eo = strchr(f2, ')') - f2;
260 }
261 err = regexec(&re, f2copy, NSUBS, subs, options('e', f1));
262
263 if (err != 0 && (f3 != NULL || err != REG_NOMATCH)) {
264 /* unexpected error or wrong error */
265 len = regerror(err, &re, erbuf, sizeof(erbuf));
266 fprintf(stderr, "%d: %s exec error %s, %d/%d `%s'\n",
267 line, type, eprint(err), len,
268 sizeof(erbuf), erbuf);
269 status = 1;
270 } else if (err != 0) {
271 /* nothing more to check */
272 } else if (f3 == NULL) {
273 /* unexpected success */
274 fprintf(stderr, "%d: %s exec should have failed\n",
275 line, type);
276 status = 1;
277 err = 1; /* just on principle */
278 } else if (opts&REG_NOSUB) {
279 /* nothing more to check */
280 } else if ((grump = check(f2, subs[0], f3)) != NULL) {
281 fprintf(stderr, "%d: %s %s\n", line, type, grump);
282 status = 1;
283 err = 1;
284 }
285
286 if (err != 0 || f4 == NULL) {
287 regfree(&re);
288 return;
289 }
290
291 for (i = 1; i < NSHOULD; i++)
292 should[i] = NULL;
293 nshould = split(f4, should+1, NSHOULD-1, ",");
294 if (nshould == 0) {
295 nshould = 1;
296 should[1] = "";
297 }
298 for (i = 1; i < NSUBS; i++) {
299 grump = check(f2, subs[i], should[i]);
300 if (grump != NULL) {
301 fprintf(stderr, "%d: %s $%d %s\n", line,
302 type, i, grump);
303 status = 1;
304 err = 1;
305 }
306 }
307
308 regfree(&re);
309}
310
311/*
312 - options - pick options out of a regression-test string
313 == int options(int type, char *s);
314 */
315int
316options(type, s)
317int type; /* 'c' compile, 'e' exec */
318char *s;
319{
320 register char *p;
321 register int o = (type == 'c') ? copts : eopts;
322 register char *legal = (type == 'c') ? "bisnmp" : "^$#tl";
323
324 for (p = s; *p != '\0'; p++)
325 if (strchr(legal, *p) != NULL)
326 switch (*p) {
327 case 'b':
328 o &= ~REG_EXTENDED;
329 break;
330 case 'i':
331 o |= REG_ICASE;
332 break;
333 case 's':
334 o |= REG_NOSUB;
335 break;
336 case 'n':
337 o |= REG_NEWLINE;
338 break;
339 case 'm':
340 o &= ~REG_EXTENDED;
341 o |= REG_NOSPEC;
342 break;
343 case 'p':
344 o |= REG_PEND;
345 break;
346 case '^':
347 o |= REG_NOTBOL;
348 break;
349 case '$':
350 o |= REG_NOTEOL;
351 break;
352 case '#':
353 o |= REG_STARTEND;
354 break;
355 case 't': /* trace */
356 o |= REG_TRACE;
357 break;
358 case 'l': /* force long representation */
359 o |= REG_LARGE;
360 break;
361 case 'r': /* force backref use */
362 o |= REG_BACKR;
363 break;
364 }
365 return(o);
366}
367
368/*
369 - opt - is a particular option in a regression string?
370 == int opt(int c, char *s);
371 */
372int /* predicate */
373opt(c, s)
374int c;
375char *s;
376{
377 return(strchr(s, c) != NULL);
378}
379
380/*
381 - fixstr - transform magic characters in strings
382 == void fixstr(register char *p);
383 */
384void
385fixstr(p)
386register char *p;
387{
388 if (p == NULL)
389 return;
390
391 for (; *p != '\0'; p++)
392 if (*p == 'N')
393 *p = '\n';
394 else if (*p == 'T')
395 *p = '\t';
396 else if (*p == 'S')
397 *p = ' ';
398 else if (*p == 'Z')
399 *p = '\0';
400}
401
402/*
403 - check - check a substring match
404 == char *check(char *str, regmatch_t sub, char *should);
405 */
406char * /* NULL or complaint */
407check(str, sub, should)
408char *str;
409regmatch_t sub;
410char *should;
411{
412 register int len;
413 register int shlen;
414 register char *p;
415 static char grump[500];
416 register char *at = NULL;
417
418 if (should != NULL && strcmp(should, "-") == 0)
419 should = NULL;
420 if (should != NULL && should[0] == '@') {
421 at = should + 1;
422 should = "";
423 }
424
425 /* check rm_so and rm_eo for consistency */
426 if (sub.rm_so > sub.rm_eo || (sub.rm_so == -1 && sub.rm_eo != -1) ||
427 (sub.rm_so != -1 && sub.rm_eo == -1) ||
428 (sub.rm_so != -1 && sub.rm_so < 0) ||
429 (sub.rm_eo != -1 && sub.rm_eo < 0) ) {
430 sprintf(grump, "start %ld end %ld", (long)sub.rm_so,
431 (long)sub.rm_eo);
432 return(grump);
433 }
434
435 /* check for no match */
436 if (sub.rm_so == -1 && should == NULL)
437 return(NULL);
438 if (sub.rm_so == -1)
439 return("did not match");
440
441 /* check for in range */
442 if (sub.rm_eo > strlen(str)) {
443 sprintf(grump, "start %ld end %ld, past end of string",
444 (long)sub.rm_so, (long)sub.rm_eo);
445 return(grump);
446 }
447
448 len = (int)(sub.rm_eo - sub.rm_so);
449 shlen = (int)strlen(should);
450 p = str + sub.rm_so;
451
452 /* check for not supposed to match */
453 if (should == NULL) {
454 sprintf(grump, "matched `%.*s'", len, p);
455 return(grump);
456 }
457
458 /* check for wrong match */
459 if (len != shlen || strncmp(p, should, (size_t)shlen) != 0) {
460 sprintf(grump, "matched `%.*s' instead", len, p);
461 return(grump);
462 }
463 if (shlen > 0)
464 return(NULL);
465
466 /* check null match in right place */
467 if (at == NULL)
468 return(NULL);
469 shlen = strlen(at);
470 if (shlen == 0)
471 shlen = 1; /* force check for end-of-string */
472 if (strncmp(p, at, shlen) != 0) {
473 sprintf(grump, "matched null at `%.20s'", p);
474 return(grump);
475 }
476 return(NULL);
477}
478
479/*
480 - eprint - convert error number to name
481 == static char *eprint(int err);
482 */
483static char *
484eprint(err)
485int err;
486{
487 static char epbuf[100];
488 size_t len;
489
490 len = regerror(REG_ITOA|err, (regex_t *)NULL, epbuf, sizeof(epbuf));
491 assert(len <= sizeof(epbuf));
492 return(epbuf);
493}
494
495/*
496 - efind - convert error name to number
497 == static int efind(char *name);
498 */
499static int
500efind(name)
501char *name;
502{
503 static char efbuf[100];
504 size_t n;
505 regex_t re;
506
507 sprintf(efbuf, "REG_%s", name);
508 assert(strlen(efbuf) < sizeof(efbuf));
509 re.re_endp = efbuf;
510 (void) regerror(REG_ATOI, &re, efbuf, sizeof(efbuf));
511 return(atoi(efbuf));
512}
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