http://www.benhanson.net/lexertl/download.html boost.lexer Releases. en-us Copyright 2005-2008, Ben Hanson http://www.benhanson.net/cpp/boost.lexer/Zip/boost.lexer.zip '^' now only a meta character at the beginning of a regex and '$' at the end (like flex). http://www.benhanson.net/cpp/boost.lexer/Zip/boost.lexer.zip (?s:) logic was the wrong way around... http://www.benhanson.net/cpp/boost.lexer/Zip/boost.lexer.zip Introduced '(?is:)' syntax (flex). http://www.benhanson.net/cpp/boost.lexer/Zip/boost.lexer.zip Fixed array initialisation for intel compiler in num_token.hpp.