-# serial 56
+# serial 58
-# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2006,
-# 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+# Copyright (C) 1996-2001, 2003-2011 Free Software Foundation, Inc.
#
# This file is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
AC_DEFUN([gl_REGEX],
[
- AC_CHECK_HEADERS_ONCE([locale.h])
-
AC_ARG_WITH([included-regex],
[AS_HELP_STRING([--without-included-regex],
[don't compile regex; this is the default on systems
[AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
[AC_INCLUDES_DEFAULT[
- #if HAVE_LOCALE_H
- #include <locale.h>
- #endif
+ #include <locale.h>
#include <limits.h>
#include <regex.h>
]],
- [[static struct re_pattern_buffer regex;
+ [[int result = 0;
+ static struct re_pattern_buffer regex;
unsigned char folded_chars[UCHAR_MAX + 1];
int i;
const char *s;
struct re_registers regs;
- #if HAVE_LOCALE_H
- /* http://sourceware.org/ml/libc-hacker/2006-09/msg00008.html
- This test needs valgrind to catch the bug on Debian
- GNU/Linux 3.1 x86, but it might catch the bug better
- on other platforms and it shouldn't hurt to try the
- test here. */
- if (setlocale (LC_ALL, "en_US.UTF-8"))
- {
- static char const pat[] = "insert into";
- static char const data[] =
- "\xFF\0\x12\xA2\xAA\xC4\xB1,K\x12\xC4\xB1*\xACK";
- re_set_syntax (RE_SYNTAX_GREP | RE_HAT_LISTS_NOT_NEWLINE
- | RE_ICASE);
- memset (®ex, 0, sizeof regex);
- s = re_compile_pattern (pat, sizeof pat - 1, ®ex);
- if (s)
- return 1;
- if (re_search (®ex, data, sizeof data - 1,
- 0, sizeof data - 1, ®s)
- != -1)
- return 1;
- if (! setlocale (LC_ALL, "C"))
- return 1;
- }
- #endif
+ /* http://sourceware.org/ml/libc-hacker/2006-09/msg00008.html
+ This test needs valgrind to catch the bug on Debian
+ GNU/Linux 3.1 x86, but it might catch the bug better
+ on other platforms and it shouldn't hurt to try the
+ test here. */
+ if (setlocale (LC_ALL, "en_US.UTF-8"))
+ {
+ static char const pat[] = "insert into";
+ static char const data[] =
+ "\xFF\0\x12\xA2\xAA\xC4\xB1,K\x12\xC4\xB1*\xACK";
+ re_set_syntax (RE_SYNTAX_GREP | RE_HAT_LISTS_NOT_NEWLINE
+ | RE_ICASE);
+ memset (®ex, 0, sizeof regex);
+ s = re_compile_pattern (pat, sizeof pat - 1, ®ex);
+ if (s)
+ result |= 1;
+ else if (re_search (®ex, data, sizeof data - 1,
+ 0, sizeof data - 1, ®s)
+ != -1)
+ result |= 1;
+ if (! setlocale (LC_ALL, "C"))
+ return 1;
+ }
/* This test is from glibc bug 3957, reported by Andrew Mackey. */
re_set_syntax (RE_SYNTAX_EGREP | RE_HAT_LISTS_NOT_NEWLINE);
memset (®ex, 0, sizeof regex);
s = re_compile_pattern ("a[^x]b", 6, ®ex);
if (s)
- return 1;
-
+ result |= 2;
/* This should fail, but succeeds for glibc-2.5. */
- if (re_search (®ex, "a\nb", 3, 0, 3, ®s) != -1)
- return 1;
+ else if (re_search (®ex, "a\nb", 3, 0, 3, ®s) != -1)
+ result |= 2;
/* This regular expression is from Spencer ere test number 75
in grep-2.3. */
s = re_compile_pattern ("a[[:@:>@:]]b\n", 11, ®ex);
/* This should fail with _Invalid character class name_ error. */
if (!s)
- return 1;
+ result |= 4;
/* Ensure that [b-a] is diagnosed as invalid, when
using RE_NO_EMPTY_RANGES. */
memset (®ex, 0, sizeof regex);
s = re_compile_pattern ("a[b-a]", 6, ®ex);
if (s == 0)
- return 1;
+ result |= 8;
/* This should succeed, but does not for glibc-2.1.3. */
memset (®ex, 0, sizeof regex);
s = re_compile_pattern ("{1", 2, ®ex);
-
if (s)
- return 1;
+ result |= 8;
/* 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)
- return 1;
-
+ result |= 8;
/* This should match, but does not for glibc-2.2.1. */
- if (re_match (®ex, "an", 2, 0, ®s) != 2)
- return 1;
+ else if (re_match (®ex, "an", 2, 0, ®s) != 2)
+ result |= 8;
memset (®ex, 0, sizeof regex);
s = re_compile_pattern ("x", 1, ®ex);
if (s)
- return 1;
-
+ result |= 8;
/* glibc-2.2.93 does not work with a negative RANGE argument. */
- if (re_search (®ex, "wxy", 3, 2, -2, ®s) != 1)
- return 1;
+ else if (re_search (®ex, "wxy", 3, 2, -2, ®s) != 1)
+ result |= 8;
/* The version of regex.c in older versions of gnulib
ignored RE_ICASE. Detect that problem too. */
memset (®ex, 0, sizeof regex);
s = re_compile_pattern ("x", 1, ®ex);
if (s)
- return 1;
-
- if (re_search (®ex, "WXY", 3, 0, 3, ®s) < 0)
- return 1;
+ result |= 16;
+ else if (re_search (®ex, "WXY", 3, 0, 3, ®s) < 0)
+ result |= 16;
/* Catch a bug reported by Vin Shelton in
http://lists.gnu.org/archive/html/bug-coreutils/2007-06/msg00089.html
memset (®ex, 0, sizeof regex);
s = re_compile_pattern ("[[:alnum:]_-]\\\\+$", 16, ®ex);
if (s)
- return 1;
+ result |= 32;
/* REG_STARTEND was added to glibc on 2004-01-15.
Reject older versions. */
if (! REG_STARTEND)
- return 1;
+ result |= 64;
#if 0
/* It would be nice to reject hosts whose regoff_t values are too
when compiling --without-included-regex. */
if (sizeof (regoff_t) < sizeof (ptrdiff_t)
|| sizeof (regoff_t) < sizeof (ssize_t))
- return 1;
+ result |= 64;
#endif
- return 0;]])],
+ return result;
+ ]])],
[gl_cv_func_re_compile_pattern_working=yes],
[gl_cv_func_re_compile_pattern_working=no],
dnl When crosscompiling, assume it is not working.
projects / debian / tar / blobdiff