73 lines
1.5 KiB
JavaScript
73 lines
1.5 KiB
JavaScript
/*\
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title: $:/core/modules/parsers/wikiparser/rules/whitespace.js
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type: application/javascript
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module-type: wikirule
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Wiki pragma rule for whitespace specifications
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```
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\whitespace trim
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\whitespace notrim
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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 = "whitespace";
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exports.types = {pragma: true};
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/*
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Instantiate parse rule
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*/
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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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this.matchRegExp = /\\whitespace[^\S\n]/mg;
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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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var self = this;
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// Move past the pragma invocation
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this.parser.pos = this.matchRegExp.lastIndex;
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// Parse whitespace delimited tokens terminated by a line break
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var reMatch = /[^\S\n]*(\S+)|(\r?\n)/mg,
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tokens = [];
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reMatch.lastIndex = this.parser.pos;
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var match = reMatch.exec(this.parser.source);
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while(match && match.index === this.parser.pos) {
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this.parser.pos = reMatch.lastIndex;
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// Exit if we've got the line break
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if(match[2]) {
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break;
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}
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// Process the token
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if(match[1]) {
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tokens.push(match[1]);
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}
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// Match the next token
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match = reMatch.exec(this.parser.source);
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}
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// Process the tokens
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$tw.utils.each(tokens,function(token) {
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switch(token) {
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case "trim":
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self.parser.configTrimWhiteSpace = true;
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break;
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case "notrim":
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self.parser.configTrimWhiteSpace = false;
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break;
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}
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});
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// No parse tree nodes to return
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return [];
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};
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})();
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