511 lines
11 KiB
C
511 lines
11 KiB
C
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#include <stdio.h>
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#include <string.h>
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#include <sys/types.h>
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#include <regex.h>
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#include <assert.h>
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#include "main.ih"
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char *progname;
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int debug = 0;
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int line = 0;
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int status = 0;
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int copts = REG_EXTENDED;
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int eopts = 0;
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regoff_t startoff = 0;
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regoff_t endoff = 0;
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extern int split();
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extern void regprint();
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/*
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- main - do the simple case, hand off to regress() for regression
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*/
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main(argc, argv)
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int argc;
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char *argv[];
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{
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regex_t re;
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# define NS 10
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regmatch_t subs[NS];
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char erbuf[100];
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int err;
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size_t len;
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int c;
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int errflg = 0;
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register int i;
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extern int optind;
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extern char *optarg;
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progname = argv[0];
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while ((c = getopt(argc, argv, "c:e:S:E:x")) != EOF)
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switch (c) {
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case 'c': /* compile options */
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copts = options('c', optarg);
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break;
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case 'e': /* execute options */
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eopts = options('e', optarg);
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break;
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case 'S': /* start offset */
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startoff = (regoff_t)atoi(optarg);
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break;
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case 'E': /* end offset */
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endoff = (regoff_t)atoi(optarg);
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break;
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case 'x': /* Debugging. */
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debug++;
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break;
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case '?':
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default:
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errflg++;
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break;
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}
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if (errflg) {
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fprintf(stderr, "usage: %s ", progname);
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fprintf(stderr, "[-c copt][-C][-d] [re]\n");
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exit(2);
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}
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if (optind >= argc) {
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regress(stdin);
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exit(status);
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}
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err = regcomp(&re, argv[optind++], copts);
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if (err) {
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len = regerror(err, &re, erbuf, sizeof(erbuf));
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fprintf(stderr, "error %s, %d/%d `%s'\n",
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eprint(err), len, sizeof(erbuf), erbuf);
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exit(status);
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}
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regprint(&re, stdout);
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if (optind >= argc) {
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regfree(&re);
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exit(status);
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}
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if (eopts®_STARTEND) {
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subs[0].rm_so = startoff;
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subs[0].rm_eo = strlen(argv[optind]) - endoff;
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}
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err = regexec(&re, argv[optind], (size_t)NS, subs, eopts);
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if (err) {
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len = regerror(err, &re, erbuf, sizeof(erbuf));
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fprintf(stderr, "error %s, %d/%d `%s'\n",
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eprint(err), len, sizeof(erbuf), erbuf);
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exit(status);
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}
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if (!(copts®_NOSUB)) {
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len = (int)(subs[0].rm_eo - subs[0].rm_so);
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if (subs[0].rm_so != -1) {
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if (len != 0)
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printf("match `%.*s'\n", len,
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argv[optind] + subs[0].rm_so);
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else
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printf("match `'@%.1s\n",
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argv[optind] + subs[0].rm_so);
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}
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for (i = 1; i < NS; i++)
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if (subs[i].rm_so != -1)
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printf("(%d) `%.*s'\n", i,
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(int)(subs[i].rm_eo - subs[i].rm_so),
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argv[optind] + subs[i].rm_so);
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}
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exit(status);
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}
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/*
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- regress - main loop of regression test
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== void regress(FILE *in);
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*/
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void
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regress(in)
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FILE *in;
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{
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char inbuf[1000];
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# define MAXF 10
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char *f[MAXF];
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int nf;
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int i;
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char erbuf[100];
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size_t ne;
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char *badpat = "invalid regular expression";
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# define SHORT 10
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char *bpname = "REG_BADPAT";
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regex_t re;
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while (fgets(inbuf, sizeof(inbuf), in) != NULL) {
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line++;
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if (inbuf[0] == '#' || inbuf[0] == '\n')
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continue; /* NOTE CONTINUE */
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inbuf[strlen(inbuf)-1] = '\0'; /* get rid of stupid \n */
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if (debug)
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fprintf(stdout, "%d:\n", line);
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nf = split(inbuf, f, MAXF, "\t\t");
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if (nf < 3) {
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fprintf(stderr, "bad input, line %d\n", line);
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exit(1);
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}
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for (i = 0; i < nf; i++)
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if (strcmp(f[i], "\"\"") == 0)
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f[i] = "";
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if (nf <= 3)
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f[3] = NULL;
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if (nf <= 4)
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f[4] = NULL;
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try(f[0], f[1], f[2], f[3], f[4], options('c', f[1]));
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if (opt('&', f[1])) /* try with either type of RE */
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try(f[0], f[1], f[2], f[3], f[4],
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options('c', f[1]) &~ REG_EXTENDED);
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}
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ne = regerror(REG_BADPAT, (regex_t *)NULL, erbuf, sizeof(erbuf));
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if (strcmp(erbuf, badpat) != 0 || ne != strlen(badpat)+1) {
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fprintf(stderr, "end: regerror() test gave `%s' not `%s'\n",
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erbuf, badpat);
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status = 1;
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}
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ne = regerror(REG_BADPAT, (regex_t *)NULL, erbuf, (size_t)SHORT);
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if (strncmp(erbuf, badpat, SHORT-1) != 0 || erbuf[SHORT-1] != '\0' ||
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ne != strlen(badpat)+1) {
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fprintf(stderr, "end: regerror() short test gave `%s' not `%.*s'\n",
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erbuf, SHORT-1, badpat);
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status = 1;
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}
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ne = regerror(REG_ITOA|REG_BADPAT, (regex_t *)NULL, erbuf, sizeof(erbuf));
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if (strcmp(erbuf, bpname) != 0 || ne != strlen(bpname)+1) {
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fprintf(stderr, "end: regerror() ITOA test gave `%s' not `%s'\n",
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erbuf, bpname);
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status = 1;
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}
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re.re_endp = bpname;
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ne = regerror(REG_ATOI, &re, erbuf, sizeof(erbuf));
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if (atoi(erbuf) != (int)REG_BADPAT) {
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fprintf(stderr, "end: regerror() ATOI test gave `%s' not `%ld'\n",
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erbuf, (long)REG_BADPAT);
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status = 1;
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} else if (ne != strlen(erbuf)+1) {
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fprintf(stderr, "end: regerror() ATOI test len(`%s') = %ld\n",
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erbuf, (long)REG_BADPAT);
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status = 1;
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}
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}
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/*
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- try - try it, and report on problems
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== void try(char *f0, char *f1, char *f2, char *f3, char *f4, int opts);
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*/
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void
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try(f0, f1, f2, f3, f4, opts)
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char *f0;
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char *f1;
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char *f2;
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char *f3;
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char *f4;
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int opts; /* may not match f1 */
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{
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regex_t re;
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# define NSUBS 10
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regmatch_t subs[NSUBS];
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# define NSHOULD 15
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char *should[NSHOULD];
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int nshould;
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char erbuf[100];
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int err;
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int len;
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char *type = (opts & REG_EXTENDED) ? "ERE" : "BRE";
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register int i;
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char *grump;
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char f0copy[1000];
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char f2copy[1000];
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strcpy(f0copy, f0);
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re.re_endp = (opts®_PEND) ? f0copy + strlen(f0copy) : NULL;
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fixstr(f0copy);
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err = regcomp(&re, f0copy, opts);
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if (err != 0 && (!opt('C', f1) || err != efind(f2))) {
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/* unexpected error or wrong error */
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len = regerror(err, &re, erbuf, sizeof(erbuf));
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fprintf(stderr, "%d: %s error %s, %d/%d `%s'\n",
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line, type, eprint(err), len,
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sizeof(erbuf), erbuf);
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status = 1;
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} else if (err == 0 && opt('C', f1)) {
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/* unexpected success */
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fprintf(stderr, "%d: %s should have given REG_%s\n",
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line, type, f2);
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status = 1;
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err = 1; /* so we won't try regexec */
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}
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if (err != 0) {
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regfree(&re);
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return;
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}
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strcpy(f2copy, f2);
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fixstr(f2copy);
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if (options('e', f1)®_STARTEND) {
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if (strchr(f2, '(') == NULL || strchr(f2, ')') == NULL)
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fprintf(stderr, "%d: bad STARTEND syntax\n", line);
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subs[0].rm_so = strchr(f2, '(') - f2 + 1;
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subs[0].rm_eo = strchr(f2, ')') - f2;
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}
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err = regexec(&re, f2copy, NSUBS, subs, options('e', f1));
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if (err != 0 && (f3 != NULL || err != REG_NOMATCH)) {
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/* unexpected error or wrong error */
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len = regerror(err, &re, erbuf, sizeof(erbuf));
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fprintf(stderr, "%d: %s exec error %s, %d/%d `%s'\n",
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line, type, eprint(err), len,
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sizeof(erbuf), erbuf);
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status = 1;
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} else if (err != 0) {
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/* nothing more to check */
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} else if (f3 == NULL) {
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/* unexpected success */
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fprintf(stderr, "%d: %s exec should have failed\n",
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line, type);
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status = 1;
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err = 1; /* just on principle */
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} else if (opts®_NOSUB) {
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/* nothing more to check */
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} else if ((grump = check(f2, subs[0], f3)) != NULL) {
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fprintf(stderr, "%d: %s %s\n", line, type, grump);
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status = 1;
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err = 1;
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}
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if (err != 0 || f4 == NULL) {
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regfree(&re);
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return;
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}
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for (i = 1; i < NSHOULD; i++)
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should[i] = NULL;
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nshould = split(f4, should+1, NSHOULD-1, ",");
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if (nshould == 0) {
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nshould = 1;
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should[1] = "";
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}
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for (i = 1; i < NSUBS; i++) {
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grump = check(f2, subs[i], should[i]);
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if (grump != NULL) {
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fprintf(stderr, "%d: %s $%d %s\n", line,
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type, i, grump);
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status = 1;
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err = 1;
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}
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}
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regfree(&re);
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}
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/*
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- options - pick options out of a regression-test string
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== int options(int type, char *s);
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*/
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int
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options(type, s)
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int type; /* 'c' compile, 'e' exec */
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char *s;
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{
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register char *p;
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register int o = (type == 'c') ? copts : eopts;
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register char *legal = (type == 'c') ? "bisnmp" : "^$#tl";
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for (p = s; *p != '\0'; p++)
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if (strchr(legal, *p) != NULL)
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switch (*p) {
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case 'b':
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o &= ~REG_EXTENDED;
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break;
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case 'i':
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o |= REG_ICASE;
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break;
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case 's':
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o |= REG_NOSUB;
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break;
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case 'n':
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o |= REG_NEWLINE;
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break;
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case 'm':
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o &= ~REG_EXTENDED;
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o |= REG_NOSPEC;
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break;
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case 'p':
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o |= REG_PEND;
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break;
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case '^':
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o |= REG_NOTBOL;
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break;
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case '$':
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o |= REG_NOTEOL;
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break;
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case '#':
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o |= REG_STARTEND;
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break;
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case 't': /* trace */
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o |= REG_TRACE;
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break;
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case 'l': /* force long representation */
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o |= REG_LARGE;
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break;
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case 'r': /* force backref use */
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o |= REG_BACKR;
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break;
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}
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return(o);
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}
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/*
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- opt - is a particular option in a regression string?
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== int opt(int c, char *s);
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*/
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int /* predicate */
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opt(c, s)
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int c;
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char *s;
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{
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|
return(strchr(s, c) != NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
- fixstr - transform magic characters in strings
|
||
|
|
== void fixstr(register char *p);
|
||
|
|
*/
|
||
|
|
void
|
||
|
|
fixstr(p)
|
||
|
|
register char *p;
|
||
|
|
{
|
||
|
|
if (p == NULL)
|
||
|
|
return;
|
||
|
|
|
||
|
|
for (; *p != '\0'; p++)
|
||
|
|
if (*p == 'N')
|
||
|
|
*p = '\n';
|
||
|
|
else if (*p == 'T')
|
||
|
|
*p = '\t';
|
||
|
|
else if (*p == 'S')
|
||
|
|
*p = ' ';
|
||
|
|
else if (*p == 'Z')
|
||
|
|
*p = '\0';
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
- check - check a substring match
|
||
|
|
== char *check(char *str, regmatch_t sub, char *should);
|
||
|
|
*/
|
||
|
|
char * /* NULL or complaint */
|
||
|
|
check(str, sub, should)
|
||
|
|
char *str;
|
||
|
|
regmatch_t sub;
|
||
|
|
char *should;
|
||
|
|
{
|
||
|
|
register int len;
|
||
|
|
register int shlen;
|
||
|
|
register char *p;
|
||
|
|
static char grump[500];
|
||
|
|
register char *at = NULL;
|
||
|
|
|
||
|
|
if (should != NULL && strcmp(should, "-") == 0)
|
||
|
|
should = NULL;
|
||
|
|
if (should != NULL && should[0] == '@') {
|
||
|
|
at = should + 1;
|
||
|
|
should = "";
|
||
|
|
}
|
||
|
|
|
||
|
|
/* check rm_so and rm_eo for consistency */
|
||
|
|
if (sub.rm_so > sub.rm_eo || (sub.rm_so == -1 && sub.rm_eo != -1) ||
|
||
|
|
(sub.rm_so != -1 && sub.rm_eo == -1) ||
|
||
|
|
(sub.rm_so != -1 && sub.rm_so < 0) ||
|
||
|
|
(sub.rm_eo != -1 && sub.rm_eo < 0) ) {
|
||
|
|
sprintf(grump, "start %ld end %ld", (long)sub.rm_so,
|
||
|
|
(long)sub.rm_eo);
|
||
|
|
return(grump);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* check for no match */
|
||
|
|
if (sub.rm_so == -1 && should == NULL)
|
||
|
|
return(NULL);
|
||
|
|
if (sub.rm_so == -1)
|
||
|
|
return("did not match");
|
||
|
|
|
||
|
|
/* check for in range */
|
||
|
|
if (sub.rm_eo > strlen(str)) {
|
||
|
|
sprintf(grump, "start %ld end %ld, past end of string",
|
||
|
|
(long)sub.rm_so, (long)sub.rm_eo);
|
||
|
|
return(grump);
|
||
|
|
}
|
||
|
|
|
||
|
|
len = (int)(sub.rm_eo - sub.rm_so);
|
||
|
|
shlen = (int)strlen(should);
|
||
|
|
p = str + sub.rm_so;
|
||
|
|
|
||
|
|
/* check for not supposed to match */
|
||
|
|
if (should == NULL) {
|
||
|
|
sprintf(grump, "matched `%.*s'", len, p);
|
||
|
|
return(grump);
|
||
|
|
}
|
||
|
|
|
||
|
|
/* check for wrong match */
|
||
|
|
if (len != shlen || strncmp(p, should, (size_t)shlen) != 0) {
|
||
|
|
sprintf(grump, "matched `%.*s' instead", len, p);
|
||
|
|
return(grump);
|
||
|
|
}
|
||
|
|
if (shlen > 0)
|
||
|
|
return(NULL);
|
||
|
|
|
||
|
|
/* check null match in right place */
|
||
|
|
if (at == NULL)
|
||
|
|
return(NULL);
|
||
|
|
shlen = strlen(at);
|
||
|
|
if (shlen == 0)
|
||
|
|
shlen = 1; /* force check for end-of-string */
|
||
|
|
if (strncmp(p, at, shlen) != 0) {
|
||
|
|
sprintf(grump, "matched null at `%.20s'", p);
|
||
|
|
return(grump);
|
||
|
|
}
|
||
|
|
return(NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
- eprint - convert error number to name
|
||
|
|
== static char *eprint(int err);
|
||
|
|
*/
|
||
|
|
static char *
|
||
|
|
eprint(err)
|
||
|
|
int err;
|
||
|
|
{
|
||
|
|
static char epbuf[100];
|
||
|
|
size_t len;
|
||
|
|
|
||
|
|
len = regerror(REG_ITOA|err, (regex_t *)NULL, epbuf, sizeof(epbuf));
|
||
|
|
assert(len <= sizeof(epbuf));
|
||
|
|
return(epbuf);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
- efind - convert error name to number
|
||
|
|
== static int efind(char *name);
|
||
|
|
*/
|
||
|
|
static int
|
||
|
|
efind(name)
|
||
|
|
char *name;
|
||
|
|
{
|
||
|
|
static char efbuf[100];
|
||
|
|
size_t n;
|
||
|
|
regex_t re;
|
||
|
|
|
||
|
|
sprintf(efbuf, "REG_%s", name);
|
||
|
|
assert(strlen(efbuf) < sizeof(efbuf));
|
||
|
|
re.re_endp = efbuf;
|
||
|
|
(void) regerror(REG_ATOI, &re, efbuf, sizeof(efbuf));
|
||
|
|
return(atoi(efbuf));
|
||
|
|
}
|