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- /*
- * Simple test program for regexp(3) stuff. Knows about debugging hooks.
- *
- * Copyright (c) 1986 by University of Toronto.
- * Written by Henry Spencer. Not derived from licensed software.
- *
- * Permission is granted to anyone to use this software for any
- * purpose on any computer system, and to redistribute it freely,
- * subject to the following restrictions:
- *
- * 1. The author is not responsible for the consequences of use of
- * this software, no matter how awful, even if they arise
- * from defects in it.
- *
- * 2. The origin of this software must not be misrepresented, either
- * by explicit claim or by omission.
- *
- * 3. Altered versions must be plainly marked as such, and must not
- * be misrepresented as being the original software.
- *
- * Usage: try re [string [output [-]]]
- * The re is compiled and dumped, regexeced against the string, the result
- * is applied to output using regsub(). The - triggers a running narrative
- * from regexec(). Dumping and narrative don't happen unless DEBUG.
- *
- * If there are no arguments, stdin is assumed to be a stream of lines with
- * five fields: a r.e., a string to match it against, a result code, a
- * source string for regsub, and the proper result. Result codes are 'c'
- * for compile failure, 'y' for match success, 'n' for match failure.
- * Field separator is tab.
- */
- #include <stdio.h>
- #include <regexp.h>
-
- #ifdef ERRAVAIL
- char *progname;
- extern char *mkprogname();
- #endif
-
- #ifdef DEBUG
- extern int regnarrate;
- #endif
-
- char buf[BUFSIZ];
-
- int errreport = 0; /* Report errors via errseen? */
- char *errseen = NULL; /* Error message. */
- int status = 0; /* Exit status. */
-
- /* ARGSUSED */
- main(argc, argv)
- int argc;
- char *argv[];
- {
- regexp *r;
- int i;
-
- #ifdef ERRAVAIL
- progname = mkprogname(argv[0]);
- #endif
-
- if (argc == 1) {
- multiple();
- exit(status);
- }
-
- r = regcomp(argv[1]);
- if (r == NULL)
- error("regcomp failure", "");
- #ifdef DEBUG
- regdump(r);
- if (argc > 4)
- regnarrate++;
- #endif
- if (argc > 2) {
- i = regexec(r, argv[2]);
- printf("%d", i);
- for (i = 1; i < NSUBEXP; i++)
- if (r->startp[i] != NULL && r->endp[i] != NULL)
- printf(" \\%d", i);
- printf("\n");
- }
- if (argc > 3) {
- regsub(r, argv[3], buf);
- printf("%s\n", buf);
- }
- exit(status);
- }
-
- void
- regerror(s)
- char *s;
- {
- if (errreport)
- errseen = s;
- else
- error(s, "");
- }
-
- #ifndef ERRAVAIL
- error(s1, s2)
- char *s1;
- char *s2;
- {
- fprintf(stderr, "regexp: ");
- fprintf(stderr, s1, s2);
- fprintf(stderr, "\n");
- exit(1);
- }
- #endif
-
- int lineno;
-
- regexp badregexp; /* Implicit init to 0. */
-
- multiple()
- {
- char rbuf[BUFSIZ];
- char *field[5];
- char *scan;
- int i;
- regexp *r;
- extern char *strchr();
-
- errreport = 1;
- lineno = 0;
- while (fgets(rbuf, sizeof(rbuf), stdin) != NULL) {
- rbuf[strlen(rbuf)-1] = '\0'; /* Dispense with \n. */
- lineno++;
- scan = rbuf;
- for (i = 0; i < 5; i++) {
- field[i] = scan;
- if (field[i] == NULL) {
- complain("bad testfile format", "");
- exit(1);
- }
- scan = strchr(scan, '\t');
- if (scan != NULL)
- *scan++ = '\0';
- }
- try(field);
- }
-
- /* And finish up with some internal testing... */
- lineno = 9990;
- errseen = NULL;
- if (regcomp((char *)NULL) != NULL || errseen == NULL)
- complain("regcomp(NULL) doesn't complain", "");
- lineno = 9991;
- errseen = NULL;
- if (regexec((regexp *)NULL, "foo") || errseen == NULL)
- complain("regexec(NULL, ...) doesn't complain", "");
- lineno = 9992;
- r = regcomp("foo");
- if (r == NULL) {
- complain("regcomp(\"foo\") fails", "");
- return;
- }
- lineno = 9993;
- errseen = NULL;
- if (regexec(r, (char *)NULL) || errseen == NULL)
- complain("regexec(..., NULL) doesn't complain", "");
- lineno = 9994;
- errseen = NULL;
- regsub((regexp *)NULL, "foo", rbuf);
- if (errseen == NULL)
- complain("regsub(NULL, ..., ...) doesn't complain", "");
- lineno = 9995;
- errseen = NULL;
- regsub(r, (char *)NULL, rbuf);
- if (errseen == NULL)
- complain("regsub(..., NULL, ...) doesn't complain", "");
- lineno = 9996;
- errseen = NULL;
- regsub(r, "foo", (char *)NULL);
- if (errseen == NULL)
- complain("regsub(..., ..., NULL) doesn't complain", "");
- lineno = 9997;
- errseen = NULL;
- if (regexec(&badregexp, "foo") || errseen == NULL)
- complain("regexec(nonsense, ...) doesn't complain", "");
- lineno = 9998;
- errseen = NULL;
- regsub(&badregexp, "foo", rbuf);
- if (errseen == NULL)
- complain("regsub(nonsense, ..., ...) doesn't complain", "");
- }
-
- try(fields)
- char **fields;
- {
- regexp *r;
- char dbuf[BUFSIZ];
-
- errseen = NULL;
- r = regcomp(fields[0]);
- if (r == NULL) {
- if (*fields[2] != 'c')
- complain("regcomp failure in `%s'", fields[0]);
- return;
- }
- if (*fields[2] == 'c') {
- complain("unexpected regcomp success in `%s'", fields[0]);
- free((char *)r);
- return;
- }
- if (!regexec(r, fields[1])) {
- if (*fields[2] != 'n')
- complain("regexec failure in `%s'", "");
- free((char *)r);
- return;
- }
- if (*fields[2] == 'n') {
- complain("unexpected regexec success", "");
- free((char *)r);
- return;
- }
- errseen = NULL;
- regsub(r, fields[3], dbuf);
- if (errseen != NULL) {
- complain("regsub complaint", "");
- free((char *)r);
- return;
- }
- if (strcmp(dbuf, fields[4]) != 0)
- complain("regsub result `%s' wrong", dbuf);
- free((char *)r);
- }
-
- complain(s1, s2)
- char *s1;
- char *s2;
- {
- fprintf(stderr, "try: %d: ", lineno);
- fprintf(stderr, s1, s2);
- fprintf(stderr, " (%s)\n", (errseen != NULL) ? errseen : "");
- status = 1;
- }