/// <summary/>
public HtmlFormat()
{
const string regJavaScript = @"(?<=<script(?:\s.*?)?>).+?(?=</script>)";
const string regComment = @"<!--.*?-->";
const string regAspTag = @"<%@.*?%>|<%|%>";
const string regAspCode = @"(?<=<%).*?(?=%>)";
const string regTagDelimiter = @"(?:</?!?\??(?!%)|(?<!%)/?>)+";
const string regTagName = @"(?<=</?!?\??(?!%))[\w\.:-]+(?=.*>)";
const string regAttributes = @"(?<=<(?!%)/?!?\??[\w:-]+).*?(?=(?<!%)/?>)";
const string regEntity = @"&\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();
}
private readonly JavaScriptFormat jsf; //to format client-side JavaScript code
#endregion Fields
#region Constructors
/// <summary/>
public HtmlFormat()
{
const string regJavaScript = @"(?<=<script(?:\s.*?)?>).+?(?=</script>)";
const string regComment = @"<!--.*?-->";
const string regAspTag = @"<%@.*?%>|<%|%>";
const string regAspCode = @"(?<=<%).*?(?=%>)";
const string regTagDelimiter = @"(?:</?!?\??(?!%)|(?<!%)/?>)+";
const string regTagName = @"(?<=</?!?\??(?!%))[\w\.:-]+(?=.*>)";
const string regAttributes = @"(?<=<(?!%)/?!?\??[\w:-]+).*?(?=(?<!%)/?>)";
const string regEntity = @"&\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#":
var csf = new CSharpFormat();
csf.LineNumbers = options.DisplayLineNumbers;
csf.Alternate = options.AlternateLineNumbers;
return HttpUtility.HtmlDecode(csf.FormatCode(text));
case "vb":
var vbf = new VisualBasicFormat();
vbf.LineNumbers = options.DisplayLineNumbers;
vbf.Alternate = options.AlternateLineNumbers;
return vbf.FormatCode(text);
case "js":
var jsf = new JavaScriptFormat();
jsf.LineNumbers = options.DisplayLineNumbers;
jsf.Alternate = options.AlternateLineNumbers;
return HttpUtility.HtmlDecode(jsf.FormatCode(text));
case "html":
var 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":
var 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":
var tsqlf = new TsqlFormat();
tsqlf.LineNumbers = options.DisplayLineNumbers;
tsqlf.Alternate = options.AlternateLineNumbers;
return HttpUtility.HtmlDecode(tsqlf.FormatCode(text));
case "msh":
var mshf = new MshFormat();
mshf.LineNumbers = options.DisplayLineNumbers;
mshf.Alternate = options.AlternateLineNumbers;
return HttpUtility.HtmlDecode(mshf.FormatCode(text));
}
return string.Empty;
}