diff options
Diffstat (limited to 'ext/ereg/regex/main.c')
| -rw-r--r-- | ext/ereg/regex/main.c | 510 |
1 files changed, 0 insertions, 510 deletions
diff --git a/ext/ereg/regex/main.c b/ext/ereg/regex/main.c deleted file mode 100644 index 657338a2c1..0000000000 --- a/ext/ereg/regex/main.c +++ /dev/null @@ -1,510 +0,0 @@ -#include <stdio.h> -#include <string.h> -#include <sys/types.h> -#include <regex.h> -#include <assert.h> -#include <stdlib.h> - -#include "main.ih" - -char *progname; -int debug = 0; -int line = 0; -int status = 0; - -int copts = REG_EXTENDED; -int eopts = 0; -regoff_t startoff = 0; -regoff_t endoff = 0; - - -extern int split(); -extern void regprint(); - -/* - - main - do the simple case, hand off to regress() for regression - */ -int main(argc, argv) -int argc; -char *argv[]; -{ - regex_t re; -# define NS 10 - regmatch_t subs[NS]; - char erbuf[100]; - int err; - size_t len; - int c; - int errflg = 0; - register int i; - extern int optind; - extern char *optarg; - - progname = argv[0]; - - while ((c = getopt(argc, argv, "c:e:S:E:x")) != EOF) - switch (c) { - case 'c': /* compile options */ - copts = options('c', optarg); - break; - case 'e': /* execute options */ - eopts = options('e', optarg); - break; - case 'S': /* start offset */ - startoff = (regoff_t)atoi(optarg); - break; - case 'E': /* end offset */ - endoff = (regoff_t)atoi(optarg); - break; - case 'x': /* Debugging. */ - debug++; - break; - case '?': - default: - errflg++; - break; - } - if (errflg) { - fprintf(stderr, "usage: %s ", progname); - fprintf(stderr, "[-c copt][-C][-d] [re]\n"); - exit(2); - } - - if (optind >= argc) { - regress(stdin); - exit(status); - } - - err = regcomp(&re, argv[optind++], copts); - if (err) { - len = regerror(err, &re, erbuf, sizeof(erbuf)); - fprintf(stderr, "error %s, %d/%d `%s'\n", - eprint(err), len, sizeof(erbuf), erbuf); - exit(status); - } - regprint(&re, stdout); - - if (optind >= argc) { - regfree(&re); - exit(status); - } - - if (eopts®_STARTEND) { - subs[0].rm_so = startoff; - subs[0].rm_eo = strlen(argv[optind]) - endoff; - } - err = regexec(&re, argv[optind], (size_t)NS, subs, eopts); - if (err) { - len = regerror(err, &re, erbuf, sizeof(erbuf)); - fprintf(stderr, "error %s, %d/%d `%s'\n", - eprint(err), len, sizeof(erbuf), erbuf); - exit(status); - } - if (!(copts®_NOSUB)) { - len = (int)(subs[0].rm_eo - subs[0].rm_so); - if (subs[0].rm_so != -1) { - if (len != 0) - printf("match `%.*s'\n", (int)len, - argv[optind] + subs[0].rm_so); - else - printf("match `'@%.1s\n", - argv[optind] + subs[0].rm_so); - } - for (i = 1; i < NS; i++) - if (subs[i].rm_so != -1) - printf("(%d) `%.*s'\n", i, - (int)(subs[i].rm_eo - subs[i].rm_so), - argv[optind] + subs[i].rm_so); - } - exit(status); -} - -/* - - regress - main loop of regression test - == void regress(FILE *in); - */ -void -regress(in) -FILE *in; -{ - char inbuf[1000]; -# define MAXF 10 - char *f[MAXF]; - int nf; - int i; - char erbuf[100]; - size_t ne; - char *badpat = "invalid regular expression"; -# define SHORT 10 - char *bpname = "REG_BADPAT"; - regex_t re; - - while (fgets(inbuf, sizeof(inbuf), in) != NULL) { - line++; - if (inbuf[0] == '#' || inbuf[0] == '\n') - continue; /* NOTE CONTINUE */ - inbuf[strlen(inbuf)-1] = '\0'; /* get rid of stupid \n */ - if (debug) - fprintf(stdout, "%d:\n", line); - nf = split(inbuf, f, MAXF, "\t\t"); - if (nf < 3) { - fprintf(stderr, "bad input, line %d\n", line); - exit(1); - } - for (i = 0; i < nf; i++) - if (strcmp(f[i], "\"\"") == 0) - f[i] = ""; - if (nf <= 3) - f[3] = NULL; - if (nf <= 4) - f[4] = NULL; - try(f[0], f[1], f[2], f[3], f[4], options('c', f[1])); - if (opt('&', f[1])) /* try with either type of RE */ - try(f[0], f[1], f[2], f[3], f[4], - options('c', f[1]) &~ REG_EXTENDED); - } - - ne = regerror(REG_BADPAT, (regex_t *)NULL, erbuf, sizeof(erbuf)); - if (strcmp(erbuf, badpat) != 0 || ne != strlen(badpat)+1) { - fprintf(stderr, "end: regerror() test gave `%s' not `%s'\n", - erbuf, badpat); - status = 1; - } - ne = regerror(REG_BADPAT, (regex_t *)NULL, erbuf, (size_t)SHORT); - if (strncmp(erbuf, badpat, SHORT-1) != 0 || erbuf[SHORT-1] != '\0' || - ne != strlen(badpat)+1) { - fprintf(stderr, "end: regerror() short test gave `%s' not `%.*s'\n", - erbuf, SHORT-1, badpat); - status = 1; - } - ne = regerror(REG_ITOA|REG_BADPAT, (regex_t *)NULL, erbuf, sizeof(erbuf)); - if (strcmp(erbuf, bpname) != 0 || ne != strlen(bpname)+1) { - fprintf(stderr, "end: regerror() ITOA test gave `%s' not `%s'\n", - erbuf, bpname); - status = 1; - } - re.re_endp = bpname; - ne = regerror(REG_ATOI, &re, erbuf, sizeof(erbuf)); - if (atoi(erbuf) != (int)REG_BADPAT) { - fprintf(stderr, "end: regerror() ATOI test gave `%s' not `%ld'\n", - erbuf, (long)REG_BADPAT); - status = 1; - } else if (ne != strlen(erbuf)+1) { - fprintf(stderr, "end: regerror() ATOI test len(`%s') = %ld\n", - erbuf, (long)REG_BADPAT); - status = 1; - } -} - -/* - - try - try it, and report on problems - == void try(char *f0, char *f1, char *f2, char *f3, char *f4, int opts); - */ -void -try(f0, f1, f2, f3, f4, opts) -char *f0; -char *f1; -char *f2; -char *f3; -char *f4; -int opts; /* may not match f1 */ -{ - regex_t re; -# define NSUBS 10 - regmatch_t subs[NSUBS]; -# define NSHOULD 15 - char *should[NSHOULD]; - int nshould; - char erbuf[100]; - int err; - int len; - char *type = (opts & REG_EXTENDED) ? "ERE" : "BRE"; - register int i; - char *grump; - char f0copy[1000]; - char f2copy[1000]; - - strcpy(f0copy, f0); - re.re_endp = (opts®_PEND) ? f0copy + strlen(f0copy) : NULL; - fixstr(f0copy); - err = regcomp(&re, f0copy, opts); - if (err != 0 && (!opt('C', f1) || err != efind(f2))) { - /* unexpected error or wrong error */ - len = regerror(err, &re, erbuf, sizeof(erbuf)); - fprintf(stderr, "%d: %s error %s, %d/%d `%s'\n", - line, type, eprint(err), len, - sizeof(erbuf), erbuf); - status = 1; - } else if (err == 0 && opt('C', f1)) { - /* unexpected success */ - fprintf(stderr, "%d: %s should have given REG_%s\n", - line, type, f2); - status = 1; - err = 1; /* so we won't try regexec */ - } - - if (err != 0) { - regfree(&re); - return; - } - - strcpy(f2copy, f2); - fixstr(f2copy); - - if (options('e', f1)®_STARTEND) { - if (strchr(f2, '(') == NULL || strchr(f2, ')') == NULL) - fprintf(stderr, "%d: bad STARTEND syntax\n", line); - subs[0].rm_so = strchr(f2, '(') - f2 + 1; - subs[0].rm_eo = strchr(f2, ')') - f2; - } - err = regexec(&re, f2copy, NSUBS, subs, options('e', f1)); - - if (err != 0 && (f3 != NULL || err != REG_NOMATCH)) { - /* unexpected error or wrong error */ - len = regerror(err, &re, erbuf, sizeof(erbuf)); - fprintf(stderr, "%d: %s exec error %s, %d/%d `%s'\n", - line, type, eprint(err), len, - sizeof(erbuf), erbuf); - status = 1; - } else if (err != 0) { - /* nothing more to check */ - } else if (f3 == NULL) { - /* unexpected success */ - fprintf(stderr, "%d: %s exec should have failed\n", - line, type); - status = 1; - err = 1; /* just on principle */ - } else if (opts®_NOSUB) { - /* nothing more to check */ - } else if ((grump = check(f2, subs[0], f3)) != NULL) { - fprintf(stderr, "%d: %s %s\n", line, type, grump); - status = 1; - err = 1; - } - - if (err != 0 || f4 == NULL) { - regfree(&re); - return; - } - - for (i = 1; i < NSHOULD; i++) - should[i] = NULL; - nshould = split(f4, should+1, NSHOULD-1, ","); - if (nshould == 0) { - nshould = 1; - should[1] = ""; - } - for (i = 1; i < NSUBS; i++) { - grump = check(f2, subs[i], should[i]); - if (grump != NULL) { - fprintf(stderr, "%d: %s $%d %s\n", line, - type, i, grump); - status = 1; - err = 1; - } - } - - regfree(&re); -} - -/* - - options - pick options out of a regression-test string - == int options(int type, char *s); - */ -int -options(type, s) -int type; /* 'c' compile, 'e' exec */ -char *s; -{ - register char *p; - register int o = (type == 'c') ? copts : eopts; - register char *legal = (type == 'c') ? "bisnmp" : "^$#tl"; - - for (p = s; *p != '\0'; p++) - if (strchr(legal, *p) != NULL) - switch (*p) { - case 'b': - o &= ~REG_EXTENDED; - break; - case 'i': - o |= REG_ICASE; - break; - case 's': - o |= REG_NOSUB; - break; - case 'n': - o |= REG_NEWLINE; - break; - case 'm': - o &= ~REG_EXTENDED; - o |= REG_NOSPEC; - break; - case 'p': - o |= REG_PEND; - break; - case '^': - o |= REG_NOTBOL; - break; - case '$': - o |= REG_NOTEOL; - break; - case '#': - o |= REG_STARTEND; - break; - case 't': /* trace */ - o |= REG_TRACE; - break; - case 'l': /* force long representation */ - o |= REG_LARGE; - break; - case 'r': /* force backref use */ - o |= REG_BACKR; - break; - } - return(o); -} - -/* - - opt - is a particular option in a regression string? - == int opt(int c, char *s); - */ -int /* predicate */ -opt(c, s) -int c; -char *s; -{ - 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]; - 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)); -} |