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TiddlyWiki5/rabbithole/core/modules/parsers/tiddlytextparser.js
Jeremy Ruston d93bbbbe7b Introduce plugin module mechanism
See the readme for details
2012-04-30 12:23:03 +01:00

57 lines
1.3 KiB
JavaScript

/*\
title: $:/core/parsers/tiddlytextparser.js
type: application/javascript
module-type: parser
Parses a plain text block that can also contain macros and transclusions.
The syntax for transclusions is:
[[tiddlerTitle]]
The syntax for macros is:
<<macroName params>>
\*/
(function(){
/*jslint node: true */
"use strict";
var TiddlyTextParser = function(options) {
this.wiki = options.wiki;
};
TiddlyTextParser.prototype.parse = function(type,text) {
var output = [],
dependencies = new $tw.Dependencies(),
macroRegExp = /(?:\[\[([^\]]+)\]\])|(?:<<([^>\s]+)(?:\s*)((?:[^>]|(?:>(?!>)))*)>>)/mg,
lastMatchPos = 0,
match,
macroNode;
do {
match = macroRegExp.exec(text);
if(match) {
output.push($tw.Tree.Text(text.substring(lastMatchPos,match.index)));
if(match[1]) { // Transclusion
macroNode = $tw.Tree.Macro("tiddler",{
target: match[1]
},[],this.wiki);
} else if(match[2]) { // Macro call
macroNode = $tw.Tree.Macro(match[2],match[3],[],this.wiki);
}
output.push(macroNode);
dependencies.mergeDependencies(macroNode.dependencies);
lastMatchPos = match.index + match[0].length;
} else {
output.push($tw.Tree.Text(text.substr(lastMatchPos)));
}
} while(match);
return new $tw.Renderer(output,dependencies);
};
exports["text/x-tiddlywiki-css"] = TiddlyTextParser;
})();