/// <summary>
/// Syntax highlights the given source code using the rules and styles of the specified programming language
/// </summary>
/// <param name="textformatter">The formatter to be called back to apply the appropriate formatting to a specified range of the text</param>
/// <param name="language">The programming language in which the text is written</param>
/// <param name="text">The source code to be syntax highlighted</param>
/// <param name="offset">Optional parameter: the position in the text where the highlightning begins</param>
public void Colorize(TextFormatter textformatter, string language, string text, int offset = 0)
{
// Check for invalid or unavaliable language
Language lang;
try
{
lang = this.languages[language];
}
catch (KeyNotFoundException e)
{
throw new InvalidLanguageException(language, e);
}
if (lang.InvalidRegex)
{
throw new InvalidRegexException(language);
}
// Syntax higlightning using the regular expressions
foreach (Match match in lang.MasterRegex.Matches(text))
{
foreach (LanguageElement element in lang.Elements)
{
if (match.Groups[element.Name].Success)
{
// callback to the formatter for every language element found
textformatter.ColorRangeOfText(match.Index + offset, match.Length, element.Color, element.CharFormat);
// Recursive call if it finds a code block written in a different programming language
if (element.SubLanguage != null)
this.Colorize(textformatter, element.SubLanguage.Name, text.Substring(match.Index, match.Length), match.Index);
}
}
}
}
/// <summary>
/// Syntax highlights the given source code using the rules and styles of the specified programming language
/// </summary>
/// <param name="textformatter">The formatter to be called back to apply the appropriate formatting to a specified range of the text</param>
/// <param name="language">The programming language in which the text is written</param>
/// <param name="text">The source code to be syntax highlighted</param>
/// <param name="offset">Optional parameter: the position in the text where the highlightning begins</param>
public void Colorize(TextFormatter textformatter, string language, string text, int offset = 0)
{
// Check for invalid or unavaliable language
Language lang;
try
{
lang = this.languages[language];
}
catch (KeyNotFoundException e)
{
throw new InvalidLanguageException(language, e);
}
if (lang.InvalidRegex)
{
throw new InvalidRegexException(language);
}
// Syntax higlightning using the regular expressions
foreach (Match match in lang.MasterRegex.Matches(text))
{
foreach (LanguageElement element in lang.Elements)
{
if (match.Groups[element.Name].Success)
{
// callback to the formatter for every language element found
textformatter.ColorRangeOfText(match.Index + offset, match.Length, element.Color, element.CharFormat);
// Recursive call if it finds a code block written in a different programming language
if (element.SubLanguage != null)
{
this.Colorize(textformatter, element.SubLanguage.Name, text.Substring(match.Index, match.Length), match.Index);
}
}
}
}
}
