- int
- main ()
- {
- static struct re_pattern_buffer regex;
- const char *s;
- re_set_syntax (RE_SYNTAX_POSIX_EGREP);
- /* Add this third left square bracket, [, to balance the
- three right ones below. Otherwise autoconf-2.14 chokes. */
- s = re_compile_pattern ("a[[:]:]]b\n", 9, ®ex);
- /* This should fail with _Invalid character class name_ error. */
- exit (s ? 0 : 1);
- }
- >>,
- changequote([, ])dnl
-
- jm_cv_func_working_re_compile_pattern=yes,
- jm_cv_func_working_re_compile_pattern=no,
- dnl When crosscompiling, assume it's broken.
- jm_cv_func_working_re_compile_pattern=no))
- if test $jm_cv_func_working_re_compile_pattern = yes; then
- ac_use_included_regex=no
- fi
+ int
+ main ()
+ {
+ static struct re_pattern_buffer regex;
+ const char *s;
+ struct re_registers regs;
+ re_set_syntax (RE_SYNTAX_POSIX_EGREP);
+ memset (®ex, 0, sizeof (regex));
+ [s = re_compile_pattern ("a[[:@:>@:]]b\n", 9, ®ex);]
+ /* This should fail with _Invalid character class name_ error. */
+ if (!s)
+ exit (1);
+
+ /* This should succeed, but doesn't for e.g. glibc-2.1.3. */
+ memset (®ex, 0, sizeof (regex));
+ s = re_compile_pattern ("{1", 2, ®ex);
+
+ if (s)
+ exit (1);
+
+ /* The following example is derived from a problem report
+ against gawk from Jorge Stolfi <stolfi@ic.unicamp.br>. */
+ memset (®ex, 0, sizeof (regex));
+ s = re_compile_pattern ("[[an\371]]*n", 7, ®ex);
+ if (s)
+ exit (1);
+
+ /* This should match, but doesn't for e.g. glibc-2.2.1. */
+ if (re_match (®ex, "an", 2, 0, ®s) != 2)
+ exit (1);
+
+ memset (®ex, 0, sizeof (regex));
+ s = re_compile_pattern ("x", 1, ®ex);
+ if (s)
+ exit (1);
+
+ /* The version of regex.c in e.g. GNU libc-2.2.93 didn't
+ work with a negative RANGE argument. */
+ if (re_search (®ex, "wxy", 3, 2, -2, ®s) != 1)
+ exit (1);
+
+ exit (0);
+ }
+ ],
+ jm_cv_func_working_re_compile_pattern=yes,
+ jm_cv_func_working_re_compile_pattern=no,
+ dnl When crosscompiling, assume it's broken.
+ jm_cv_func_working_re_compile_pattern=no))
+ if test $jm_cv_func_working_re_compile_pattern = yes; then
+ ac_use_included_regex=no