]> git.saurik.com Git - wxWidgets.git/commitdiff
renamed main.c to re_main.c to avoid clashes with main.cpp in VPATH
authorVadim Zeitlin <vadim@wxwidgets.org>
Fri, 13 Jul 2001 19:08:59 +0000 (19:08 +0000)
committerVadim Zeitlin <vadim@wxwidgets.org>
Fri, 13 Jul 2001 19:08:59 +0000 (19:08 +0000)
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@11018 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/regex/Makefile
src/regex/main.c [deleted file]
src/regex/re_main.c [new file with mode: 0644]

index 3882b378647c26b6ae8b1e40502d05ef16d7eada..ce20561fa9a9d3f4c76b7d49d5fba3fcbd74a662 100644 (file)
@@ -18,14 +18,14 @@ LIBS=
 
 # Internal stuff, should not need changing.
 OBJPRODN=regcomp.o regexec.o regerror.o regfree.o
-OBJS=$(OBJPRODN) split.o debug.o main.o
+OBJS=$(OBJPRODN) split.o debug.o re_main.o
 H=cclass.h cname.h regex2.h utils.h
 REGSRC=regcomp.c regerror.c regexec.c regfree.c
-ALLSRC=$(REGSRC) engine.c debug.c main.c split.c
+ALLSRC=$(REGSRC) engine.c debug.c re_main.c split.c
 
 # Stuff that matters only if you're trying to lint the package.
 LINTFLAGS=-I. -Dstatic= -Dconst= -DREDEBUG
-LINTC=regcomp.c regexec.c regerror.c regfree.c debug.c main.c
+LINTC=regcomp.c regexec.c regerror.c regfree.c debug.c re_main.c
 JUNKLINT=possible pointer alignment|null effect
 
 # arrangements to build forward-reference header files
@@ -56,7 +56,7 @@ regcomp.o:    cclass.h cname.h regcomp.ih
 regexec.o:     engine.c engine.ih
 regerror.o:    regerror.ih
 debug.o:       debug.ih
-main.o:        main.ih
+re_main.o:     re_main.ih
 
 # tester
 re:    $(OBJS)
diff --git a/src/regex/main.c b/src/regex/main.c
deleted file mode 100644 (file)
index 0221e77..0000000
+++ /dev/null
@@ -1,510 +0,0 @@
-#include <stdio.h>
-#include <string.h>
-#include <sys/types.h>
-#include <regex.h>
-#include <assert.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
- */
-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&REG_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&REG_NOSUB)) {
-               len = (int)(subs[0].rm_eo - subs[0].rm_so);
-               if (subs[0].rm_so != -1) {
-                       if (len != 0)
-                               printf("match `%.*s'\n", 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&REG_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)&REG_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&REG_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];
-       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));
-}
diff --git a/src/regex/re_main.c b/src/regex/re_main.c
new file mode 100644 (file)
index 0000000..0221e77
--- /dev/null
@@ -0,0 +1,510 @@
+#include <stdio.h>
+#include <string.h>
+#include <sys/types.h>
+#include <regex.h>
+#include <assert.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
+ */
+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&REG_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&REG_NOSUB)) {
+               len = (int)(subs[0].rm_eo - subs[0].rm_so);
+               if (subs[0].rm_so != -1) {
+                       if (len != 0)
+                               printf("match `%.*s'\n", 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&REG_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)&REG_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&REG_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];
+       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));
+}