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https://github.com/git/git
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d4c6375fd8
There are certain house-keeping tasks that need to be performed at the very beginning of any Git program, and programs that are not built-in commands had to do them exactly the same way as "git" potty does. It was easy to make mistakes in one-off standalone programs (like test helpers). A common "main()" function that calls cmd_main() of individual program has been introduced to make it harder to make mistakes. * jk/common-main: mingw: declare main()'s argv as const common-main: call git_setup_gettext() common-main: call restore_sigpipe_to_default() common-main: call sanitize_stdfds() common-main: call git_extract_argv0_path() add an extra level of indirection to main()
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
#include "git-compat-util.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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#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_main(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 flags = 0;
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regex_t r;
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regmatch_t m[1];
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if (argc == 2 && !strcmp(argv[1], "--bug"))
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return test_regex_bug();
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else if (argc < 3)
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usage("test-regex --bug\n"
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"test-regex <pattern> <string> [<options>]");
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argv++;
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pat = *argv++;
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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 %s", *argv);
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argv++;
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}
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git_setup_gettext();
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if (regcomp(&r, pat, flags))
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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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return 1;
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return 0;
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}
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