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#include "test-tool.h"
#include "gettext.h"
struct reg_flag {
const char *name;
int flag;
};
static struct reg_flag reg_flags[] = {
{ "EXTENDED", REG_EXTENDED },
{ "NEWLINE", REG_NEWLINE },
{ "ICASE", REG_ICASE },
{ "NOTBOL", REG_NOTBOL },
{ "NOTEOL", REG_NOTEOL },
#ifdef REG_STARTEND
{ "STARTEND", REG_STARTEND },
#endif
{ NULL, 0 }
};
static int test_regex_bug(void)
{
char *pat = "[^={} \t]+";
char *str = "={}\nfred";
regex_t r;
regmatch_t m[1];
if (regcomp(&r, pat, REG_EXTENDED | REG_NEWLINE))
die("failed regcomp() for pattern '%s'", pat);
if (regexec(&r, str, 1, m, 0))
die("no match of pattern '%s' to string '%s'", pat, str);
/* http://sourceware.org/bugzilla/show_bug.cgi?id=3957 */
if (m[0].rm_so == 3) /* matches '\n' when it should not */
die("regex bug confirmed: re-build git with NO_REGEX=1");
return 0;
}
int cmd__regex(int argc, const char **argv)
{
const char *pat;
const char *str;
int ret, silent = 0, flags = 0;
regex_t r;
regmatch_t m[1];
char errbuf[64];
argv++;
argc--;
if (!argc)
goto usage;
if (!strcmp(*argv, "--bug")) {
if (argc == 1)
return test_regex_bug();
else
goto usage;
}
if (!strcmp(*argv, "--silent")) {
silent = 1;
argv++;
argc--;
}
if (!argc)
goto usage;
pat = *argv++;
if (argc == 1)
str = NULL;
else {
str = *argv++;
while (*argv) {
struct reg_flag *rf;
for (rf = reg_flags; rf->name; rf++)
if (!strcmp(*argv, rf->name)) {
flags |= rf->flag;
break;
}
if (!rf->name)
die("do not recognize flag %s", *argv);
argv++;
}
}
git_setup_gettext();
ret = regcomp(&r, pat, flags);
if (ret) {
if (silent)
return ret;
regerror(ret, &r, errbuf, sizeof(errbuf));
die("failed regcomp() for pattern '%s' (%s)", pat, errbuf);
}
if (!str)
return 0;
ret = regexec(&r, str, 1, m, 0);
if (ret) {
if (silent || ret == REG_NOMATCH)
return ret;
regerror(ret, &r, errbuf, sizeof(errbuf));
die("failed regexec() for subject '%s' (%s)", str, errbuf);
}
return 0;
usage:
usage("\ttest-tool regex --bug\n"
"\ttest-tool regex [--silent] <pattern>\n"
"\ttest-tool regex [--silent] <pattern> <string> [<options>]");
return -1;
}
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