Hi, I think your report is relating with http://www.macruby.org/trac/ticket/1341
Thanks 2012/4/19 Sylvester Keil <sylvester.k...@gmail.com>: > Dear all, > > while debugging performance issues for a gem (bibtex-ruby) I noticed that > MacRuby's StringScanner implementation creates new Regular Expression objects > every time #scan is called; as I am dealing with a lexical analyzer based on > StringScanner the #scan method is quite crucial and the current > implementation performs so slowly that it is basically unusable on MacRuby. > > This is the problematic method in MacRuby: > > https://github.com/MacRuby/MacRuby/blob/master/lib/strscan.rb#L638 > > Both MRI and Rubinius work around this by using a feature of Oniguruma > patterns to match the pattern at the beginning of a string only. Here are the > corresponding sections: > > https://github.com/ruby/ruby/blob/trunk/ext/strscan/strscan.c#L437 > https://github.com/rubinius/rubinius/blob/master/lib/strscan.rb#L264 > > Do regular expressions in MacRuby expose similar functionality to either Ruby > or C extensions? I'd be happy to help resolving this issue, but have no > experience with MacRuby so any pointers on how to best approach this are much > appreciated. > > Thanks, > > Sylvester > > > > > _______________________________________________ > MacRuby-devel mailing list > MacRuby-devel@lists.macosforge.org > http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
