TiddlyWiki5/core/modules/parsers/wikiparser/rules/prettylink.js

68 lines
1.3 KiB
JavaScript

/*\
title: $:/core/modules/parsers/wikiparser/rules/prettylink.js
type: application/javascript
module-type: wikirule
Wiki text inline rule for pretty links. For example:
```
[[Introduction]]
[[Link description|TiddlerTitle]]
```
\*/
(function(){
/*jslint node: true, browser: true */
/*global $tw: false */
"use strict";
exports.name = "prettylink";
exports.types = {inline: true};
exports.init = function(parser) {
this.parser = parser;
// Regexp to match
this.matchRegExp = /\[\[(.*?)(?:\|(.*?))?\]\]/mg;
};
var isLinkExternal = function(to) {
var externalRegExp = /(?:file|http|https|mailto|ftp|irc|news|data|skype):[^\s'"]+(?:\/|\b)/i;
return externalRegExp.test(to);
};
exports.parse = function() {
// Move past the match
this.parser.pos = this.matchRegExp.lastIndex;
// Process the link
var text = this.match[1],
link = this.match[2] || text;
if(isLinkExternal(link)) {
return [{
type: "element",
tag: "a",
attributes: {
href: {type: "string", value: link},
target: {type: "string", value: "_blank"}
},
children: [{
type: "text", text: text
}]
}];
} else {
return [{
type: "element",
tag: "$link",
attributes: {
to: {type: "string", value: link}
},
children: [{
type: "text", text: text
}]
}];
}
};
})();