Added new experimental captures support.

[SVN r21243]

example/Jamfile

@@ -45,6 +45,23 @@ test-suite regex-examples :
 [ regex-test-run snippets/regex_token_iterator_eg_2.cpp : $(BOOST_ROOT)/libs/regex/doc/index.html ]
 [ regex-test-run snippets/regex_iterator_example.cpp : $(BOOST_ROOT)/boost/rational.hpp ]
 
+[ run
+	# sources
+    snippets/captures_example.cpp
+    <template>../build/regex-options
+    # dependencies
+    <lib>../test/captures/boost_regex_extra
+ :  # additional args
+ :  # test-files
+ :  # requirements
+    <threading>multi
+    <define>BOOST_REGEX_MATCH_EXTRA=1
+    <define>BOOST_REGEX_NO_LIB=1
+ :  # test name
+    captures_example
+ ]
+
+
 ;
 
 
@@ -54,3 +71,5 @@ test-suite regex-examples :
 
 
 
+
+

example/snippets/captures_example.cpp

@@ -0,0 +1,51 @@
+
+#include <boost/regex.hpp>
+#include <iostream>
+
+
+void print_captures(const std::string& regx, const std::string& text)
+{
+   boost::regex e(regx);
+   boost::smatch what;
+   std::cout << "Expression:  \"" << regx << "\"\n";
+   std::cout << "Text:        \"" << text << "\"\n";
+   if(boost::regex_match(text, what, e, boost::match_extra))
+   {
+      unsigned i, j;
+      std::cout << "** Match found **\n   Sub-Expressions:\n";
+      for(i = 0; i < what.size(); ++i)
+         std::cout << "      $" << i << " = \"" << what[i] << "\"\n";
+      std::cout << "   Captures:\n";
+      for(i = 0; i < what.size(); ++i)
+      {
+         std::cout << "      $" << i << " = {";
+         for(j = 0; j < what.captures(i).size(); ++j)
+         {
+            if(j)
+               std::cout << ", ";
+            else
+               std::cout << " ";
+            std::cout << "\"" << what.captures(i)[j] << "\"";
+         }
+         std::cout << " }\n";
+      }
+   }
+   else
+   {
+      std::cout << "** No Match found **\n";
+   }
+}
+
+int main(int , char* [])
+{
+   print_captures("(([[:lower:]]+)|([[:upper:]]+))+", "aBBcccDDDDDeeeeeeee");
+   print_captures("a(b+|((c)*))+d", "abd");
+   print_captures("(.*)bar|(.*)bah", "abcbar");
+   print_captures("(.*)bar|(.*)bah", "abcbah");
+   print_captures("^(?:(\\w+)|(?>\\W+))*$", "now is the time for all good men to come to the aid of the party");
+   print_captures("^(?>(\\w+)\\W*)*$", "now is the time for all good men to come to the aid of the party");
+   print_captures("^(\\w+)\\W+(?>(\\w+)\\W+)*(\\w+)$", "now is the time for all good men to come to the aid of the party");
+   print_captures("^(\\w+)\\W+(?>(\\w+)\\W+(?:(\\w+)\\W+){0,2})*(\\w+)$", "now is the time for all good men to come to the aid of the party");
+   return 0;
+}
+