mirror of
https://github.com/Jermolene/TiddlyWiki5
synced 2024-07-05 11:43:16 +00:00
100 lines
2.8 KiB
JavaScript
100 lines
2.8 KiB
JavaScript
/*\
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title: $:/core/modules/parsers/wikiparser/rules/html.js
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type: application/javascript
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module-type: wikirule
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Wiki rule for HTML elements and widgets. For example:
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{{{
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<aside>
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This is an HTML5 aside element
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</aside>
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<$slider target="MyTiddler">
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This is a widget invocation
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</$slider>
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}}}
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\*/
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(function(){
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/*jslint node: true, browser: true */
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/*global $tw: false */
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"use strict";
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exports.name = "html";
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exports.types = {inline: true, block: true};
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exports.init = function(parser) {
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this.parser = parser;
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// Regexp to match
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if(this.is.block) {
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this.matchRegExp = /<([A-Za-z\$]+)(\s*[^>]*?)(\/)?>(\r?\n)/mg;
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} else {
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this.matchRegExp = /<([A-Za-z\$]+)(\s*[^>]*?)(?:(\/>)|(?:>(\r?\n)?))/mg;
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}
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};
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/*
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Parse the most recent match
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*/
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exports.parse = function() {
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// Get all the details of the match in case this parser is called recursively
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var tagName = this.match[1],
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attributeString = this.match[2],
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isSelfClosing = !!this.match[3],
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hasLineBreak = !!this.match[4];
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// Move past the tag name and parameters
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this.parser.pos = this.matchRegExp.lastIndex;
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var reAttr = /\s*([A-Za-z\-_]+)(?:\s*=\s*(?:("[^"]*")|('[^']*')|(\{\{[^\}]*\}\})|([^"'\s]+)))?/mg;
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// Process the attributes
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var attrMatch = reAttr.exec(attributeString),
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attributes = {};
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while(attrMatch) {
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var name = attrMatch[1],
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value;
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if(attrMatch[2]) { // Double quoted
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value = {type: "string", value: attrMatch[2].substring(1,attrMatch[2].length-1)};
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} else if(attrMatch[3]) { // Single quoted
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value = {type: "string", value: attrMatch[3].substring(1,attrMatch[3].length-1)};
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} else if(attrMatch[4]) { // Double curly brace quoted
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value = {type: "indirect", textReference: attrMatch[4].substr(2,attrMatch[4].length-4)};
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} else if(attrMatch[5]) { // Unquoted
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value = {type: "string", value: attrMatch[5]};
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} else { // Valueless
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value = {type: "string", value: "true"}; // TODO: We should have a way of indicating we want an attribute without a value
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}
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attributes[name] = value;
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attrMatch = reAttr.exec(attributeString);
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}
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// Process the end tag
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if(!isSelfClosing && $tw.config.htmlVoidElements.indexOf(tagName) === -1) {
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var reEndString = "</" + $tw.utils.escapeRegExp(tagName) + ">",
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reEnd = new RegExp("(" + reEndString + ")","mg"),
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content;
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if(hasLineBreak) {
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content = this.parser.parseBlocks(reEndString);
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} else {
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content = this.parser.parseInlineRun(reEnd);
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}
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reEnd.lastIndex = this.parser.pos;
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var endMatch = reEnd.exec(this.parser.source);
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if(endMatch && endMatch.index === this.parser.pos) {
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this.parser.pos = endMatch.index + endMatch[0].length;
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}
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} else {
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content = [];
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}
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var element = {
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type: "element",
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tag: tagName,
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isBlock: this.is.block || hasLineBreak,
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attributes: attributes,
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children: content
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};
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return [element];
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};
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})();
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