3bc72ab274
* Remove pinning of eslint-plugin-markdown An issue affecting Node.js source has been fixed in eslint-plugin-markdown so we don't need to pin it to beta-4 anymore. Refs: https://github.com/eslint/eslint-plugin-markdown/issues/69 * Update eslint-plugin-markdown up to 1.0.0-beta.7 * Fix docs for eslint-plugin-markdown@1.0.0-beta.7 PR-URL: https://github.com/nodejs/node/pull/14047 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Yuta Hiroto <hello@about-hiroppy.com> Reviewed-By: Refael Ackermann <refack@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
69 lines
1.3 KiB
JavaScript
69 lines
1.3 KiB
JavaScript
/**
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* @author Titus Wormer
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* @copyright 2015 Titus Wormer
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* @license MIT
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* @module remark:parse:tokenize:delete
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* @fileoverview Tokenise strikethrough.
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*/
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'use strict';
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var whitespace = require('is-whitespace-character');
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var locate = require('../locate/delete');
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module.exports = strikethrough;
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strikethrough.locator = locate;
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var C_TILDE = '~';
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var DOUBLE = '~~';
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/* Tokenise strikethrough. */
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function strikethrough(eat, value, silent) {
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var self = this;
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var character = '';
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var previous = '';
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var preceding = '';
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var subvalue = '';
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var index;
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var length;
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var now;
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if (
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!self.options.gfm ||
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value.charAt(0) !== C_TILDE ||
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value.charAt(1) !== C_TILDE ||
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whitespace(value.charAt(2))
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) {
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return;
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}
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index = 1;
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length = value.length;
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now = eat.now();
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now.column += 2;
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now.offset += 2;
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while (++index < length) {
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character = value.charAt(index);
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if (
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character === C_TILDE &&
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previous === C_TILDE &&
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(!preceding || !whitespace(preceding))
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) {
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/* istanbul ignore if - never used (yet) */
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if (silent) {
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return true;
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}
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return eat(DOUBLE + subvalue + DOUBLE)({
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type: 'delete',
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children: self.tokenizeInline(subvalue, now)
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});
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}
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subvalue += previous;
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preceding = previous;
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previous = character;
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}
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}
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