f4609b896f
This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because there is some breakage in the git build related to the netrc credentials helper which someone has taken care of in nixpkgs. The stable channel is not used for anything other than git, so this should be fine. Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb
114 lines
2.2 KiB
C
114 lines
2.2 KiB
C
#include "test-tool.h"
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#include "gettext.h"
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struct reg_flag {
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const char *name;
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int flag;
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};
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static struct reg_flag reg_flags[] = {
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{ "EXTENDED", REG_EXTENDED },
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{ "NEWLINE", REG_NEWLINE },
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{ "ICASE", REG_ICASE },
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{ "NOTBOL", REG_NOTBOL },
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{ "NOTEOL", REG_NOTEOL },
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#ifdef REG_STARTEND
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{ "STARTEND", REG_STARTEND },
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#endif
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{ NULL, 0 }
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};
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static int test_regex_bug(void)
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{
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char *pat = "[^={} \t]+";
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char *str = "={}\nfred";
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regex_t r;
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regmatch_t m[1];
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if (regcomp(&r, pat, REG_EXTENDED | REG_NEWLINE))
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die("failed regcomp() for pattern '%s'", pat);
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if (regexec(&r, str, 1, m, 0))
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die("no match of pattern '%s' to string '%s'", pat, str);
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/* http://sourceware.org/bugzilla/show_bug.cgi?id=3957 */
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if (m[0].rm_so == 3) /* matches '\n' when it should not */
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die("regex bug confirmed: re-build git with NO_REGEX=1");
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return 0;
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}
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int cmd__regex(int argc, const char **argv)
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{
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const char *pat;
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const char *str;
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int ret, silent = 0, flags = 0;
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regex_t r;
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regmatch_t m[1];
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char errbuf[64];
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argv++;
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argc--;
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if (!argc)
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goto usage;
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if (!strcmp(*argv, "--bug")) {
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if (argc == 1)
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return test_regex_bug();
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else
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goto usage;
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}
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if (!strcmp(*argv, "--silent")) {
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silent = 1;
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argv++;
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argc--;
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}
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if (!argc)
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goto usage;
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pat = *argv++;
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if (argc == 1)
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str = NULL;
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else {
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str = *argv++;
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while (*argv) {
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struct reg_flag *rf;
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for (rf = reg_flags; rf->name; rf++)
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if (!strcmp(*argv, rf->name)) {
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flags |= rf->flag;
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break;
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}
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if (!rf->name)
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die("do not recognize flag %s", *argv);
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argv++;
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}
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}
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git_setup_gettext();
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ret = regcomp(&r, pat, flags);
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if (ret) {
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if (silent)
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return ret;
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regerror(ret, &r, errbuf, sizeof(errbuf));
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die("failed regcomp() for pattern '%s' (%s)", pat, errbuf);
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}
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if (!str)
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return 0;
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ret = regexec(&r, str, 1, m, 0);
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if (ret) {
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if (silent || ret == REG_NOMATCH)
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return ret;
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regerror(ret, &r, errbuf, sizeof(errbuf));
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die("failed regexec() for subject '%s' (%s)", str, errbuf);
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}
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return 0;
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usage:
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usage("\ttest-tool regex --bug\n"
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"\ttest-tool regex [--silent] <pattern>\n"
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"\ttest-tool regex [--silent] <pattern> <string> [<options>]");
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return -1;
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}
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