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Implement fallback if Glib::Regex class is missing (#695279) 

GParted fails to compile on RHEL/CentOS 5.9 because it doesn't provide
the Glib::Regex class.  Glib::Regex class requires glibmm >= 2.14,
however RHEL/CentOS 5.9 only provides glibmm 2.12.

Add an autoconf check for the Glib::Regex class and fallback code using
the POSIX regex function.  Fall back code is the same as that used prior
to commit:
    b6f1c56fb1
    Enhance regexp_label method to handle unicode characters

Bug #695279 - GParted doesn't compile on RHEL / CentOS 5.9
This commit is contained in:
Mike Fleetwood 2013-03-03 22:58:05 +00:00 committed by Curtis Gedak
parent 5b737b224d
commit 456932846b
2 changed files with 30 additions and 0 deletions
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11
configure.in
View File

@ -252,6 +252,17 @@ AC_SUBST([GTKMM_LIBS])
AC_SUBST([GTKMM_CFLAGS])
dnl Check for glibmm >= 2.14 to determine availability of Glib::Regex class
AC_MSG_CHECKING([for Glib::Regex class])
PKG_CHECK_EXISTS(
[glibmm-2.4 >= 2.14.0],
[AC_DEFINE([HAVE_GLIB_REGEX], 1, [Define to 1 if glibmm provides Glib::Regex class.])
AC_MSG_RESULT([yes])
],
[AC_MSG_RESULT([no])]
)
dnl GTKMM 2.16 needed for gtk_show_uri()
PKG_CHECK_EXISTS([gtkmm-2.4 >= 2.16.0],
[AC_DEFINE([HAVE_GTK_SHOW_URI], 1, [Define to 1 if you have gtk_show_uri])],

19
src/Utils.cc
View File

@ -23,7 +23,11 @@
#include <sstream>
#include <fstream>
#include <iomanip>
#ifdef HAVE_GLIB_REGEX
#include <glibmm/regex.h>
#else
#include <regex.h>
#endif
#include <locale.h>
#include <uuid/uuid.h>
#include <cerrno>
@ -506,6 +510,7 @@ Glib::ustring Utils::regexp_label( const Glib::ustring & text
{
//Extract text from a regular sub-expression or pattern.
// E.g., "text we don't want (text we want)"
#ifdef HAVE_GLIB_REGEX
std::vector<Glib::ustring> results;
Glib::RefPtr<Glib::Regex> myregexp =
Glib::Regex::create( pattern
@ -518,6 +523,20 @@ Glib::ustring Utils::regexp_label( const Glib::ustring & text
return results[ 1 ] ;
else
return "" ;
#else /* ! HAVE_GLIB_REGEX */
Glib::ustring label = "" ;
regex_t preg ;
int nmatch = 2 ;
regmatch_t pmatch[ 2 ] ;
int rc = regcomp( &preg, pattern .c_str(), REG_EXTENDED | REG_ICASE | REG_NEWLINE ) ;
if ( rc == 0 )
{
if ( regexec( &preg, text .c_str(), nmatch, pmatch, 0 ) == 0 )
label = text .substr( pmatch[ 1 ] .rm_so, pmatch[ 1 ] .rm_eo - pmatch[ 1 ] .rm_so ) ;
regfree( &preg ) ;
}
return label ;
#endif
}
Glib::ustring Utils::trim( const Glib::ustring & src, const Glib::ustring & c /* = " \t\r\n" */ )