How to implement a super syntax highlighting engine with Javascript
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SyCODE Syntax Highlighter has the characteristics of high speed and strong expansibility, it can easily complete the code highlighting processing of 32KB on a current mainstream PC, and can complete the code highlighting processing of 64KB at one time without the slow prompt of script. Syntax highlighting processing of any programming language can be realized by adding different regular expressions.
Syntax highlighting in more than 20 languages has been implemented within SyCODE Syntax Highlighter 1.0, including:
1. C _ blank +
2. C#
3. CSS
4. Delphi/Kylix
5. Pascal
6. Java
7. Vb/Vb.net
8. J (ava) Script
9. ActionScript
10. Php
11. Python
12. Ruby/Rails
13. Perl
14. Assembly
15. Bat batch processing
16. UNIX Shell
18. AWK
19. Sql
20. Xml/xhtml
Example: Highlighter.Execute (cleanCode, language)
Effect:
Var Highlighter = {
Brushes: {}
RegexLib: {
MultiLineCComments: new RegExp ('/\ * [\\ s\\ S] *?\\ * /', 'gm')
SingleLineCComments: new RegExp ('/. * $', 'gm')
SingleLinePerlComments: new RegExp ('#. * $', 'gm')
DoubleQuotedString: new RegExp ('"(?:\\. | (\") | [^\ "\\ n]) *",'g')
SingleQuotedString: new RegExp ("'(?:\\. | (\') | [^\'\\ n]) *','g')
}
Match: function (value, index, css) {
This.value = value
This.index = index
This.length = value.length
This.css = css
}
Execute: function (str,lang) {
Var registered = new Object ()
For (var brush in Highlighter.Brushes)
{
Var aliases = Highlight. Brushes.aliases
If (aliases = = null) continue
For (var itemositani}
If (!! registered [lang.toLowerCase ()]) {
Var ht = new Highlighter.Brushes [registered [lang.toLowerCase [)] ()
Return ht.Highlight (str)
}
Else {
Str = str.replace (/ & / g,'&')
Str = str.replace (/ str = str.replace (/ > / g,'>')
Str = str.replace (/\ t Compact g,'')
Str = str.replace (/ [] {2} / g,'')
Return str.replace (/\ nUnip g,'
')
}
}
}
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