public string TransformToCss(string source, string fileName) { try { Parser.StrictMath = StrictMath; var tree = Parser.Parse(source, fileName); var env = Env ?? new Env(Parser) { Compress = Compress, Debug = Debug, KeepFirstSpecialComment = KeepFirstSpecialComment, DisableVariableRedefines = DisableVariableRedefines, DisableColorCompression = DisableColorCompression }; if (Plugins != null) { foreach (IPluginConfigurator configurator in Plugins) { env.AddPlugin(configurator.CreatePlugin()); } } var css = tree.ToCSS(env); var stylizer = new PlainStylizer(); foreach (var unmatchedExtension in env.FindUnmatchedExtensions()) { Logger.Warn("Warning: extend '{0}' has no matches {1}\n", unmatchedExtension.BaseSelector.ToCSS(env).Trim(), stylizer.Stylize(new Zone(unmatchedExtension.Extend.Location)).Trim()); } tree.Accept(DelegateVisitor.For<Media>(m => { foreach (var unmatchedExtension in m.FindUnmatchedExtensions()) { Logger.Warn("Warning: extend '{0}' has no matches {1}\n", unmatchedExtension.BaseSelector.ToCSS(env).Trim(), stylizer.Stylize(new Zone(unmatchedExtension.Extend.Location)).Trim()); } })); LastTransformationSuccessful = true; return css; } catch (ParserException e) { LastTransformationSuccessful = false; LastTransformationError = e; Logger.Error(e.Message); } return ""; }