Beispiel #1
0
        private JavaScriptFormat jsf; //to format client-side JavaScript code

        #endregion Fields

        #region Constructors

        /// <summary/>
        public HtmlFormat()
        {
            const string regJavaScript = @"(?<=&lt;script(?:\s.*?)?&gt;).+?(?=&lt;/script&gt;)";
            const string regComment = @"&lt;!--.*?--&gt;";
            const string regAspTag = @"&lt;%@.*?%&gt;|&lt;%|%&gt;";
            const string regAspCode = @"(?<=&lt;%).*?(?=%&gt;)";
            const string regTagDelimiter = @"(?:&lt;/?!?\??(?!%)|(?<!%)/?&gt;)+";
            const string regTagName = @"(?<=&lt;/?!?\??(?!%))[\w\.:-]+(?=.*&gt;)";
            const string regAttributes = @"(?<=&lt;(?!%)/?!?\??[\w:-]+).*?(?=(?<!%)/?&gt;)";
            const string regEntity = @"&amp;\w+;";
            const string regAttributeMatch = @"(=?"".*?""|=?'.*?')|([\w:-]+)";

            //the regex object will handle all the replacements in one pass
            string regAll = "(" + regJavaScript + ")|(" + regComment + ")|("
                + regAspTag + ")|(" + regAspCode + ")|("
                + regTagDelimiter + ")|(" + regTagName + ")|("
                + regAttributes + ")|(" + regEntity + ")";

            CodeRegex = new Regex(regAll, RegexOptions.IgnoreCase | RegexOptions.Singleline);
            attribRegex = new Regex(regAttributeMatch, RegexOptions.Singleline);

            csf = new CSharpFormat();
            jsf = new JavaScriptFormat();
        }
        /// <summary>
        /// Returns the formatted text.
        /// </summary>
        /// <param name="options">Whatever options were set in the regex groups.</param>
        /// <param name="text">Send the e.body so it can get formatted.</param>
        /// <returns>The formatted string of the match.</returns>
        private static string Highlight(HighlightOptions options, string text)
        {
            switch (options.Language)
            {
                case "c#":
                    CSharpFormat csf = new CSharpFormat();
                    csf.LineNumbers = options.DisplayLineNumbers;
                    csf.Alternate = options.AlternateLineNumbers;
                    return HttpUtility.HtmlDecode(csf.FormatCode(text));

                case "vb":
                    VisualBasicFormat vbf = new VisualBasicFormat();
                    vbf.LineNumbers = options.DisplayLineNumbers;
                    vbf.Alternate = options.AlternateLineNumbers;
                    return vbf.FormatCode(text);

                case "js":
                    JavaScriptFormat jsf = new JavaScriptFormat();
                    jsf.LineNumbers = options.DisplayLineNumbers;
                    jsf.Alternate = options.AlternateLineNumbers;
                    return HttpUtility.HtmlDecode(jsf.FormatCode(text));

                case "html":
                    HtmlFormat htmlf = new HtmlFormat();
                    htmlf.LineNumbers = options.DisplayLineNumbers;
                    htmlf.Alternate = options.AlternateLineNumbers;
                    text = StripHtml(text).Trim();
                    string code = htmlf.FormatCode(HttpUtility.HtmlDecode(text)).Trim();
                    return code.Replace("\r\n", "<br />").Replace("\n", "<br />");

                case "xml":
                    HtmlFormat xmlf = new HtmlFormat();
                    xmlf.LineNumbers = options.DisplayLineNumbers;
                    xmlf.Alternate = options.AlternateLineNumbers;
                    text = text.Replace("<br />", "\r\n");
                    text = StripHtml(text).Trim();
                    string xml = xmlf.FormatCode(HttpUtility.HtmlDecode(text)).Trim();
                    return xml.Replace("\r\n", "<br />").Replace("\n", "<br />");

                case "tsql":
                    TsqlFormat tsqlf = new TsqlFormat();
                    tsqlf.LineNumbers = options.DisplayLineNumbers;
                    tsqlf.Alternate = options.AlternateLineNumbers;
                    return HttpUtility.HtmlDecode(tsqlf.FormatCode(text));

                case "msh":
                    MshFormat mshf = new MshFormat();
                    mshf.LineNumbers = options.DisplayLineNumbers;
                    mshf.Alternate = options.AlternateLineNumbers;
                    return HttpUtility.HtmlDecode(mshf.FormatCode(text));

            }

            return string.Empty;
        }