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>
106 lines
2.2 KiB
JavaScript
106 lines
2.2 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:code-indented
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* @fileoverview Tokenise indented code.
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*/
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'use strict';
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var repeat = require('repeat-string');
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var trim = require('trim-trailing-lines');
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module.exports = indentedCode;
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var C_NEWLINE = '\n';
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var C_TAB = '\t';
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var C_SPACE = ' ';
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var CODE_INDENT_COUNT = 4;
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var CODE_INDENT = repeat(C_SPACE, CODE_INDENT_COUNT);
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/* Tokenise indented code. */
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function indentedCode(eat, value, silent) {
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var index = -1;
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var length = value.length;
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var subvalue = '';
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var content = '';
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var subvalueQueue = '';
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var contentQueue = '';
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var character;
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var blankQueue;
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var indent;
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while (++index < length) {
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character = value.charAt(index);
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if (indent) {
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indent = false;
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subvalue += subvalueQueue;
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content += contentQueue;
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subvalueQueue = '';
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contentQueue = '';
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if (character === C_NEWLINE) {
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subvalueQueue = character;
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contentQueue = character;
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} else {
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subvalue += character;
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content += character;
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while (++index < length) {
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character = value.charAt(index);
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if (!character || character === C_NEWLINE) {
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contentQueue = character;
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subvalueQueue = character;
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break;
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}
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subvalue += character;
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content += character;
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}
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}
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} else if (
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character === C_SPACE &&
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value.charAt(index + 1) === character &&
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value.charAt(index + 2) === character &&
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value.charAt(index + 3) === character
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) {
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subvalueQueue += CODE_INDENT;
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index += 3;
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indent = true;
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} else if (character === C_TAB) {
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subvalueQueue += character;
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indent = true;
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} else {
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blankQueue = '';
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while (character === C_TAB || character === C_SPACE) {
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blankQueue += character;
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character = value.charAt(++index);
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}
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if (character !== C_NEWLINE) {
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break;
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}
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subvalueQueue += blankQueue + character;
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contentQueue += character;
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}
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}
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if (content) {
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if (silent) {
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return true;
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}
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return eat(subvalue)({
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type: 'code',
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lang: null,
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value: trim(content)
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});
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}
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}
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