-#serial 13
+#serial 15
dnl Initially derived from code in GNU grep.
dnl Mostly written by Jim Meyering.
jm_cv_func_working_re_compile_pattern,
AC_TRY_RUN(
[#include <stdio.h>
+#include <string.h>
#include <regex.h>
int
main ()
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)
/* 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 ("[[anĂ¹]]*n", 7, ®ex);
if (s)
exit (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);
}
],