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Added syntax highlighting for JavaScript tiddlers

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Jeremy Ruston 2012-03-02 00:48:05 +00:00
parent 542561a0fa
commit 8adfcbdc69
2 changed files with 80 additions and 4 deletions
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42
js/JavaScriptParser.js
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@ -44,11 +44,47 @@ var JavaScriptParser = function(options) {
this.store = options.store;
};
// Parse a string of JavaScript code and return the parse tree as a wikitext parse tree
// Parse a string of JavaScript code or JSON and return the parse tree as a wikitext parse tree
JavaScriptParser.prototype.parse = function(type,code) {
if(type === "application/json") {
code = "(" + code + ")";
if(type === "application/javascript") {
return this.parseJavaScript(code);
} else {
return this.parseJSON(code);
}
}
JavaScriptParser.prototype.parseJavaScript = function(code) {
// Get the parse tree
var parseTree = esprima.parse(code,{
tokens: true,
range: true
}),
result = [],
t,endLastToken = 0;
for(t=0; t<parseTree.tokens.length; t++) {
var token = parseTree.tokens[t];
if(token.range[0] > endLastToken) {
result.push(Renderer.TextNode(code.substring(endLastToken,token.range[0])));
}
result.push(Renderer.ElementNode("span",{
"class": "javascript-" + token.type.toLowerCase()
},[
Renderer.TextNode(token.value)
]));
endLastToken = token.range[1] + 1;
}
if(endLastToken < code.length) {
result.push(Renderer.TextNode(code.substring(endLastToken)));
}
return new WikiTextParseTree([
Renderer.ElementNode("pre",{"class": "javascript-source"},result)
],new Dependencies(),this.store);
};
JavaScriptParser.prototype.parseJSON = function(code) {
// Wrap it in parenthesis to make it a program
code = "(" + code + ")";
// Get the parse tree
return new WikiTextParseTree([
renderObject(esprima.parse(code))
],new Dependencies(),this.store);