regex_error.h: Remove _S_error_last to follow the standard.

2013-09-26  Tim Shen  <timshen91@gmail.com>

	* regex_error.h: Remove _S_error_last to follow the standard.
	* regex_scanner.tcc:
	(_Scanner<_FwdIter>::_M_scan_in_brace): Change error_brace to
	error_badbrace.
	(_Scanner<>::_M_eat_escape_posix): Extended doesn't support
	back-reference.
	* testsuite/28_regex/algorithms/regex_match/ecma/char/53622.cc:
	Move here from ../../extended.
	* testsuite/28_regex/algorithms/regex_match/ecma/char/57173.cc:
	Likewise.

From-SVN: r202958

libstdc++-v3/ChangeLog

+2013-09-26  Tim Shen  <timshen91@gmail.com>
+
+	* regex_error.h: Remove _S_error_last to follow the standard.
+	* regex_scanner.tcc:
+	(_Scanner<_FwdIter>::_M_scan_in_brace): Change error_brace to
+	error_badbrace.
+	(_Scanner<>::_M_eat_escape_posix): Extended doesn't support
+	back-reference.
+	* testsuite/28_regex/algorithms/regex_match/ecma/char/53622.cc:
+	Move here from ../../extended.
+	* testsuite/28_regex/algorithms/regex_match/ecma/char/57173.cc:
+	Likewise.
+
 2013-09-25  Marc Glisse  <marc.glisse@inria.fr>
 
 	PR libstdc++/58338

libstdc++-v3/include/bits/regex_error.h

@@ -61,7 +61,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
       _S_error_badrepeat,
       _S_error_complexity,
       _S_error_stack,
-      _S_error_last
     };
 
   /** The expression contained an invalid collating element name. */

libstdc++-v3/include/bits/regex_scanner.tcc

@@ -345,7 +345,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	      ++_M_current;
 	    }
 	  else
-	    __throw_regex_error(regex_constants::error_brace);
+	    __throw_regex_error(regex_constants::error_badbrace);
 	}
       else if (__c == '}')
 	{
@@ -353,7 +353,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	  _M_token = _S_token_interval_end;
 	}
       else
-	__throw_regex_error(regex_constants::error_brace);
+	__throw_regex_error(regex_constants::error_badbrace);
     }
 
   template<typename _FwdIter>
@@ -428,6 +428,8 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	}
     }
 
+  // Differences between styles:
+  // 1) Extended doesn't support backref, but basic does.
   template<typename _FwdIter>
     void
     _Scanner<_FwdIter>::
@@ -449,7 +451,7 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
 	  _M_eat_escape_awk();
 	  return;
 	}
-      else if (_M_ctype.is(_CtypeT::digit, __c) && __c != '0')
+      else if (_M_is_basic() && _M_ctype.is(_CtypeT::digit, __c) && __c != '0')
 	{
 	  _M_token = _S_token_backref;
 	  _M_value.assign(1, __c);

libstdc++-v3/testsuite/28_regex/algorithms/regex_match/extended/53622.cc → libstdc++-v3/testsuite/28_regex/algorithms/regex_match/ecma/char/53622.cc

@@ -21,7 +21,6 @@
 // <http://www.gnu.org/licenses/>.
 
 // 28.11.2 regex_match
-// Tests Extended grouping against a std::string target.
 
 #include <regex>
 #include <testsuite_hooks.h>
@@ -33,7 +32,7 @@ test01()
   bool test __attribute__((unused)) = true;
 
   {
-    std::regex  re("zxcv/(one.*)abc", std::regex::extended);
+    std::regex  re("zxcv/(one.*)abc", std::regex::ECMAScript);
     std::string target("zxcv/onetwoabc");
     std::smatch m;
 
@@ -46,7 +45,7 @@ test01()
   }
 
   {
-    std::regex  re("zxcv/(one.*)abc()\\2", std::regex::extended);
+    std::regex  re("zxcv/(one.*)abc()\\2", std::regex::ECMAScript);
     std::string target("zxcv/onetwoabc");
     std::smatch m;
 

libstdc++-v3/testsuite/28_regex/algorithms/regex_match/extended/57173.cc → libstdc++-v3/testsuite/28_regex/algorithms/regex_match/ecma/char/57173.cc

@@ -20,8 +20,7 @@
 // with this library; see the file COPYING3.  If not see
 // <http://www.gnu.org/licenses/>.
 
-// 28.11.3 regex_search
-// Tests Extended against a std::string target.
+// 28.11.2 regex_match
 
 #include <regex>
 #include <testsuite_hooks.h>
@@ -34,7 +33,7 @@ test01()
   bool test __attribute__((unused)) = true;
 
   {
-    std::regex  re("/asdf(/.*)", std::regex::extended);
+    std::regex  re("/asdf(/.*)", std::regex::ECMAScript);
     std::string target("/asdf/qwerty");
     std::smatch m;
 
@@ -43,7 +42,7 @@ test01()
     VERIFY( std::string(m[1].first, m[1].second) == "/qwerty");
   }
   {
-    std::regex  re("/asdf(/.*)()\\2", std::regex::extended);
+    std::regex  re("/asdf(/.*)()\\2", std::regex::ECMAScript);
     std::string target("/asdf/qwerty");
     std::smatch m;