mirror of
https://github.com/DavidAnson/markdownlint.git
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1025 lines
32 KiB
JavaScript
1025 lines
32 KiB
JavaScript
// @ts-check
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"use strict";
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const micromark = require("./micromark.cjs");
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const { newLineRe, nextLinesRe } = require("./shared.js");
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module.exports.newLineRe = newLineRe;
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module.exports.nextLinesRe = nextLinesRe;
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// Regular expression for matching common front matter (YAML and TOML)
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module.exports.frontMatterRe =
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/((^---\s*$[\s\S]+?^---\s*)|(^\+\+\+\s*$[\s\S]+?^(\+\+\+|\.\.\.)\s*)|(^\{\s*$[\s\S]+?^\}\s*))(\r\n|\r|\n|$)/m;
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// Regular expression for matching the start of inline disable/enable comments
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const inlineCommentStartRe =
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/(<!--\s*markdownlint-(disable|enable|capture|restore|disable-file|enable-file|disable-line|disable-next-line|configure-file))(?:\s|-->)/gi;
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module.exports.inlineCommentStartRe = inlineCommentStartRe;
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// Regular expressions for range matching
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module.exports.listItemMarkerRe = /^([\s>]*)(?:[*+-]|\d+[.)])\s+/;
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module.exports.orderedListItemMarkerRe = /^[\s>]*0*(\d+)[.)]/;
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// Regular expression for blockquote prefixes
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const blockquotePrefixRe = /^[>\s]*/;
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module.exports.blockquotePrefixRe = blockquotePrefixRe;
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// Regular expression for link reference definitions
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const linkReferenceDefinitionRe = /^ {0,3}\[([^\]]*[^\\])\]:/;
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module.exports.linkReferenceDefinitionRe = linkReferenceDefinitionRe;
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// Regular expression for identifying an HTML entity at the end of a line
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module.exports.endOfLineHtmlEntityRe =
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/&(?:#\d+|#[xX][\da-fA-F]+|[a-zA-Z]{2,31}|blk\d{2}|emsp1[34]|frac\d{2}|sup\d|there4);$/;
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// Regular expression for identifying a GitHub emoji code at the end of a line
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module.exports.endOfLineGemojiCodeRe =
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/:(?:[abmovx]|[-+]1|100|1234|(?:1st|2nd|3rd)_place_medal|8ball|clock\d{1,4}|e-mail|non-potable_water|o2|t-rex|u5272|u5408|u55b6|u6307|u6708|u6709|u6e80|u7121|u7533|u7981|u7a7a|[a-z]{2,15}2?|[a-z]{1,14}(?:_[a-z\d]{1,16})+):$/;
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// All punctuation characters (normal and full-width)
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const allPunctuation = ".,;:!?。，；：！？";
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module.exports.allPunctuation = allPunctuation;
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// All punctuation characters without question mark (normal and full-width)
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module.exports.allPunctuationNoQuestion = allPunctuation.replace(/[?？]/gu, "");
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/**
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* Returns true iff the input is a Number.
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*
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* @param {Object} obj Object of unknown type.
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* @returns {boolean} True iff obj is a Number.
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*/
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function isNumber(obj) {
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return typeof obj === "number";
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}
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module.exports.isNumber = isNumber;
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/**
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* Returns true iff the input is a String.
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*
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* @param {Object} obj Object of unknown type.
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* @returns {boolean} True iff obj is a String.
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*/
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function isString(obj) {
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return typeof obj === "string";
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}
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module.exports.isString = isString;
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/**
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* Returns true iff the input String is empty.
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*
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* @param {string} str String of unknown length.
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* @returns {boolean} True iff the input String is empty.
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*/
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function isEmptyString(str) {
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return str.length === 0;
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}
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module.exports.isEmptyString = isEmptyString;
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/**
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* Returns true iff the input is an Object.
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*
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* @param {Object} obj Object of unknown type.
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* @returns {boolean} True iff obj is an Object.
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*/
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function isObject(obj) {
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return !!obj && (typeof obj === "object") && !Array.isArray(obj);
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}
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module.exports.isObject = isObject;
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/**
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* Returns true iff the input is a URL.
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*
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* @param {Object} obj Object of unknown type.
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* @returns {boolean} True iff obj is a URL.
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*/
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function isUrl(obj) {
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return !!obj && (Object.getPrototypeOf(obj) === URL.prototype);
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}
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module.exports.isUrl = isUrl;
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/**
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* Clones the input if it is an Array.
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*
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* @param {Object} arr Object of unknown type.
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* @returns {Object} Clone of obj iff obj is an Array.
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*/
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function cloneIfArray(arr) {
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return Array.isArray(arr) ? [ ...arr ] : arr;
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}
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module.exports.cloneIfArray = cloneIfArray;
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/**
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* Clones the input if it is a URL.
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*
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* @param {Object} url Object of unknown type.
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* @returns {Object} Clone of obj iff obj is a URL.
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*/
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function cloneIfUrl(url) {
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return isUrl(url) ? new URL(url) : url;
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}
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module.exports.cloneIfUrl = cloneIfUrl;
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/**
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* Gets a Regular Expression for matching the specified HTML attribute.
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*
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* @param {string} name HTML attribute name.
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* @returns {RegExp} Regular Expression for matching.
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*/
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module.exports.getHtmlAttributeRe = function getHtmlAttributeRe(name) {
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return new RegExp(`\\s${name}\\s*=\\s*['"]?([^'"\\s>]*)`, "iu");
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};
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/**
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* Returns true iff the input line is blank (contains nothing, whitespace, or
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* comments (unclosed start/end comments allowed)).
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*
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* @param {string} line Input line.
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* @returns {boolean} True iff line is blank.
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*/
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function isBlankLine(line) {
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const startComment = "<!--";
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const endComment = "-->";
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const removeComments = (s) => {
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// eslint-disable-next-line no-constant-condition
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while (true) {
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const start = s.indexOf(startComment);
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const end = s.indexOf(endComment);
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if ((end !== -1) && ((start === -1) || (end < start))) {
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// Unmatched end comment is first
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s = s.slice(end + endComment.length);
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} else if ((start !== -1) && (end !== -1)) {
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// Start comment is before end comment
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s = s.slice(0, start) + s.slice(end + endComment.length);
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} else if ((start !== -1) && (end === -1)) {
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// Unmatched start comment is last
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s = s.slice(0, start);
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} else {
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// No more comments to remove
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return s;
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}
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}
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};
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return (
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!line ||
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!line.trim() ||
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!removeComments(line).replace(/>/g, "").trim()
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);
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}
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module.exports.isBlankLine = isBlankLine;
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/**
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* Compare function for Array.prototype.sort for ascending order of numbers.
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*
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* @param {number} a First number.
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* @param {number} b Second number.
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* @returns {number} Positive value if a>b, negative value if b<a, 0 otherwise.
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*/
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module.exports.numericSortAscending = function numericSortAscending(a, b) {
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return a - b;
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};
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// Returns true iff the sorted array contains the specified element
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module.exports.includesSorted = function includesSorted(array, element) {
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let left = 0;
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let right = array.length - 1;
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while (left <= right) {
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// eslint-disable-next-line no-bitwise
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const mid = (left + right) >> 1;
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if (array[mid] < element) {
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left = mid + 1;
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} else if (array[mid] > element) {
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right = mid - 1;
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} else {
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return true;
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}
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}
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return false;
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};
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// Replaces the content of properly-formatted CommonMark comments with "."
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// This preserves the line/column information for the rest of the document
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// https://spec.commonmark.org/0.29/#html-blocks
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// https://spec.commonmark.org/0.29/#html-comment
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const htmlCommentBegin = "<!--";
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const htmlCommentEnd = "-->";
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const safeCommentCharacter = ".";
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const startsWithPipeRe = /^ *\|/;
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const notCrLfRe = /[^\r\n]/g;
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const notSpaceCrLfRe = /[^ \r\n]/g;
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const trailingSpaceRe = / +[\r\n]/g;
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const replaceTrailingSpace = (s) => s.replace(notCrLfRe, safeCommentCharacter);
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module.exports.clearHtmlCommentText = function clearHtmlCommentText(text) {
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let i = 0;
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while ((i = text.indexOf(htmlCommentBegin, i)) !== -1) {
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const j = text.indexOf(htmlCommentEnd, i + 2);
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if (j === -1) {
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// Un-terminated comments are treated as text
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break;
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}
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// If the comment has content...
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if (j > i + htmlCommentBegin.length) {
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const content = text.slice(i + htmlCommentBegin.length, j);
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const lastLf = text.lastIndexOf("\n", i) + 1;
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const preText = text.slice(lastLf, i);
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const isBlock = preText.trim().length === 0;
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const couldBeTable = startsWithPipeRe.test(preText);
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const spansTableCells = couldBeTable && content.includes("\n");
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const isValid =
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isBlock ||
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!(
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spansTableCells ||
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content.startsWith(">") ||
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content.startsWith("->") ||
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content.endsWith("-") ||
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content.includes("--")
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);
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// If a valid block/inline comment...
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if (isValid) {
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const clearedContent = content
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.replace(notSpaceCrLfRe, safeCommentCharacter)
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.replace(trailingSpaceRe, replaceTrailingSpace);
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text =
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text.slice(0, i + htmlCommentBegin.length) +
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clearedContent +
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text.slice(j);
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}
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}
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i = j + htmlCommentEnd.length;
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}
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return text;
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};
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// Escapes a string for use in a RegExp
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module.exports.escapeForRegExp = function escapeForRegExp(str) {
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return str.replace(/[-/\\^$*+?.()|[\]{}]/g, "\\$&");
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};
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/**
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* Return the string representation of a fence markup character.
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*
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* @param {string} markup Fence string.
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* @returns {string} String representation.
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*/
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module.exports.fencedCodeBlockStyleFor =
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function fencedCodeBlockStyleFor(markup) {
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switch (markup[0]) {
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case "~":
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return "tilde";
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default:
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return "backtick";
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}
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};
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/**
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* Return the string representation of a emphasis or strong markup character.
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*
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* @param {string} markup Emphasis or strong string.
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* @returns {"asterisk" | "underscore"} String representation.
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*/
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module.exports.emphasisOrStrongStyleFor =
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function emphasisOrStrongStyleFor(markup) {
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switch (markup[0]) {
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case "*":
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return "asterisk";
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default:
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return "underscore";
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}
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};
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/**
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* Return the number of characters of indent for a token.
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*
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* @param {Object} token MarkdownItToken instance.
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* @returns {number} Characters of indent.
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*/
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function indentFor(token) {
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const line = token.line.replace(/^[\s>]*(> |>)/, "");
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return line.length - line.trimStart().length;
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}
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module.exports.indentFor = indentFor;
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// Returns the heading style for a heading token
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module.exports.headingStyleFor = function headingStyleFor(token) {
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if ((token.map[1] - token.map[0]) === 1) {
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if (/[^\\]#\s*$/.test(token.line)) {
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return "atx_closed";
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}
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return "atx";
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}
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return "setext";
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};
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/**
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* Return the string representation of an unordered list marker.
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*
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* @param {Object} token MarkdownItToken instance.
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* @returns {"asterisk" | "dash" | "plus"} String representation.
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*/
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module.exports.unorderedListStyleFor = function unorderedListStyleFor(token) {
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switch (token.markup) {
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case "-":
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return "dash";
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case "+":
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return "plus";
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// case "*":
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default:
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return "asterisk";
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}
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};
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/**
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* @callback TokenCallback
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* @param {MarkdownItToken} token Current token.
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* @returns {void}
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*/
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/**
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* Calls the provided function for each matching token.
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*
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* @param {Object} params RuleParams instance.
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* @param {string} type Token type identifier.
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* @param {TokenCallback} handler Callback function.
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* @returns {void}
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*/
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function filterTokens(params, type, handler) {
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for (const token of params.parsers.markdownit.tokens) {
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if (token.type === type) {
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handler(token);
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}
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}
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}
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module.exports.filterTokens = filterTokens;
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/**
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* @typedef {Array} LineMetadata
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*/
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/**
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* Gets a line metadata array.
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*
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* @param {Object} params RuleParams instance.
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* @returns {LineMetadata} Line metadata.
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*/
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function getLineMetadata(params) {
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const lineMetadata = params.lines.map(
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(line, index) => [ line, index, false, 0, false, false, false ]
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);
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filterTokens(params, "fence", (token) => {
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lineMetadata[token.map[0]][3] = 1;
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lineMetadata[token.map[1] - 1][3] = -1;
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for (let i = token.map[0] + 1; i < token.map[1] - 1; i++) {
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lineMetadata[i][2] = true;
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}
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});
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filterTokens(params, "code_block", (token) => {
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for (let i = token.map[0]; i < token.map[1]; i++) {
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lineMetadata[i][2] = true;
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}
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});
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filterTokens(params, "table_open", (token) => {
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for (let i = token.map[0]; i < token.map[1]; i++) {
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lineMetadata[i][4] = true;
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}
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});
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filterTokens(params, "list_item_open", (token) => {
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let count = 1;
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for (let i = token.map[0]; i < token.map[1]; i++) {
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lineMetadata[i][5] = count;
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count++;
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}
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});
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filterTokens(params, "hr", (token) => {
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lineMetadata[token.map[0]][6] = true;
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});
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return lineMetadata;
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}
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module.exports.getLineMetadata = getLineMetadata;
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/**
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* @callback EachLineCallback
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* @param {string} line Line content.
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* @param {number} lineIndex Line index (0-based).
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* @param {boolean} inCode Iff in a code block.
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* @param {number} onFence + if open, - if closed, 0 otherwise.
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* @param {boolean} inTable Iff in a table.
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* @param {boolean} inItem Iff in a list item.
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* @param {boolean} inBreak Iff in semantic break.
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* @returns {void}
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*/
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/**
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* Calls the provided function for each line.
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*
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* @param {LineMetadata} lineMetadata Line metadata object.
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* @param {EachLineCallback} handler Function taking (line, lineIndex, inCode,
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* onFence, inTable, inItem, inBreak).
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* @returns {void}
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*/
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function forEachLine(lineMetadata, handler) {
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for (const metadata of lineMetadata) {
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// @ts-ignore
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handler(...metadata);
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}
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}
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module.exports.forEachLine = forEachLine;
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// Returns (nested) lists as a flat array (in order)
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module.exports.flattenLists = function flattenLists(tokens) {
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const flattenedLists = [];
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const stack = [];
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let current = null;
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let nesting = 0;
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const nestingStack = [];
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let lastWithMap = { "map": [ 0, 1 ] };
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for (const token of tokens) {
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if ((token.type === "bullet_list_open") ||
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(token.type === "ordered_list_open")) {
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// Save current context and start a new one
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stack.push(current);
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current = {
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"unordered": (token.type === "bullet_list_open"),
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"parentsUnordered": !current ||
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(current.unordered && current.parentsUnordered),
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"open": token,
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"indent": indentFor(token),
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"parentIndent": (current && current.indent) || 0,
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"items": [],
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"nesting": nesting,
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"lastLineIndex": -1,
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"insert": flattenedLists.length
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};
|
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nesting++;
|
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} else if ((token.type === "bullet_list_close") ||
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(token.type === "ordered_list_close")) {
|
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// Finalize current context and restore previous
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current.lastLineIndex = lastWithMap.map[1];
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flattenedLists.splice(current.insert, 0, current);
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delete current.insert;
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current = stack.pop();
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nesting--;
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} else if (token.type === "list_item_open") {
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// Add list item
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||
current.items.push(token);
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} else if (token.type === "blockquote_open") {
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||
nestingStack.push(nesting);
|
||
nesting = 0;
|
||
} else if (token.type === "blockquote_close") {
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nesting = nestingStack.pop() || 0;
|
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}
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if (token.map) {
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// Track last token with map
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||
lastWithMap = token;
|
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}
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}
|
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return flattenedLists;
|
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};
|
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|
||
// Calls the provided function for each heading's content
|
||
module.exports.forEachHeading = function forEachHeading(params, handler) {
|
||
let heading = null;
|
||
for (const token of params.parsers.markdownit.tokens) {
|
||
if (token.type === "heading_open") {
|
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heading = token;
|
||
} else if (token.type === "heading_close") {
|
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heading = null;
|
||
} else if ((token.type === "inline") && heading) {
|
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handler(heading, token.content, token);
|
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}
|
||
}
|
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};
|
||
|
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/**
|
||
* @callback InlineCodeSpanCallback
|
||
* @param {string} code Code content.
|
||
* @param {number} lineIndex Line index (0-based).
|
||
* @param {number} columnIndex Column index (0-based).
|
||
* @param {number} ticks Count of backticks.
|
||
* @returns {void}
|
||
*/
|
||
|
||
/**
|
||
* Calls the provided function for each inline code span's content.
|
||
*
|
||
* @param {string} input Markdown content.
|
||
* @param {InlineCodeSpanCallback} handler Callback function taking (code,
|
||
* lineIndex, columnIndex, ticks).
|
||
* @returns {void}
|
||
*/
|
||
function forEachInlineCodeSpan(input, handler) {
|
||
const backtickRe = /`+/g;
|
||
let match = null;
|
||
const backticksLengthAndIndex = [];
|
||
while ((match = backtickRe.exec(input)) !== null) {
|
||
backticksLengthAndIndex.push([ match[0].length, match.index ]);
|
||
}
|
||
const newLinesIndex = [];
|
||
while ((match = newLineRe.exec(input)) !== null) {
|
||
newLinesIndex.push(match.index);
|
||
}
|
||
let lineIndex = 0;
|
||
let lineStartIndex = 0;
|
||
let k = 0;
|
||
for (let i = 0; i < backticksLengthAndIndex.length - 1; i++) {
|
||
const [ startLength, startIndex ] = backticksLengthAndIndex[i];
|
||
if ((startIndex === 0) || (input[startIndex - 1] !== "\\")) {
|
||
for (let j = i + 1; j < backticksLengthAndIndex.length; j++) {
|
||
const [ endLength, endIndex ] = backticksLengthAndIndex[j];
|
||
if (startLength === endLength) {
|
||
for (; k < newLinesIndex.length; k++) {
|
||
const newLineIndex = newLinesIndex[k];
|
||
if (startIndex < newLineIndex) {
|
||
break;
|
||
}
|
||
lineIndex++;
|
||
lineStartIndex = newLineIndex + 1;
|
||
}
|
||
const columnIndex = startIndex - lineStartIndex + startLength;
|
||
handler(
|
||
input.slice(startIndex + startLength, endIndex),
|
||
lineIndex,
|
||
columnIndex,
|
||
startLength
|
||
);
|
||
i = j;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
module.exports.forEachInlineCodeSpan = forEachInlineCodeSpan;
|
||
|
||
/**
|
||
* Adds ellipsis to the left/right/middle of the specified text.
|
||
*
|
||
* @param {string} text Text to ellipsify.
|
||
* @param {boolean} [start] True iff the start of the text is important.
|
||
* @param {boolean} [end] True iff the end of the text is important.
|
||
* @returns {string} Ellipsified text.
|
||
*/
|
||
function ellipsify(text, start, end) {
|
||
if (text.length <= 30) {
|
||
// Nothing to do
|
||
} else if (start && end) {
|
||
text = text.slice(0, 15) + "..." + text.slice(-15);
|
||
} else if (end) {
|
||
text = "..." + text.slice(-30);
|
||
} else {
|
||
text = text.slice(0, 30) + "...";
|
||
}
|
||
return text;
|
||
}
|
||
module.exports.ellipsify = ellipsify;
|
||
|
||
/**
|
||
* Adds a generic error object via the onError callback.
|
||
*
|
||
* @param {Object} onError RuleOnError instance.
|
||
* @param {number} lineNumber Line number.
|
||
* @param {string} [detail] Error details.
|
||
* @param {string} [context] Error context.
|
||
* @param {number[]} [range] Column and length of error.
|
||
* @param {Object} [fixInfo] RuleOnErrorFixInfo instance.
|
||
* @returns {void}
|
||
*/
|
||
function addError(onError, lineNumber, detail, context, range, fixInfo) {
|
||
onError({
|
||
lineNumber,
|
||
detail,
|
||
context,
|
||
range,
|
||
fixInfo
|
||
});
|
||
}
|
||
module.exports.addError = addError;
|
||
|
||
// Adds an error object with details conditionally via the onError callback
|
||
module.exports.addErrorDetailIf = function addErrorDetailIf(
|
||
onError, lineNumber, expected, actual, detail, context, range, fixInfo) {
|
||
if (expected !== actual) {
|
||
addError(
|
||
onError,
|
||
lineNumber,
|
||
"Expected: " + expected + "; Actual: " + actual +
|
||
(detail ? "; " + detail : ""),
|
||
context,
|
||
range,
|
||
fixInfo);
|
||
}
|
||
};
|
||
|
||
// Adds an error object with context via the onError callback
|
||
module.exports.addErrorContext = function addErrorContext(
|
||
onError, lineNumber, context, left, right, range, fixInfo) {
|
||
context = ellipsify(context, left, right);
|
||
addError(onError, lineNumber, undefined, context, range, fixInfo);
|
||
};
|
||
|
||
/**
|
||
* Returns an array of code block and span content ranges.
|
||
*
|
||
* @param {Object} params RuleParams instance.
|
||
* @param {Object} lineMetadata Line metadata object.
|
||
* @returns {number[][]} Array of ranges (lineIndex, columnIndex, length).
|
||
*/
|
||
module.exports.codeBlockAndSpanRanges = (params, lineMetadata) => {
|
||
const exclusions = [];
|
||
// Add code block ranges (excludes fences)
|
||
forEachLine(lineMetadata, (line, lineIndex, inCode, onFence) => {
|
||
if (inCode && !onFence) {
|
||
exclusions.push([ lineIndex, 0, line.length ]);
|
||
}
|
||
});
|
||
// Add code span ranges (excludes ticks)
|
||
filterTokens(params, "inline", (token) => {
|
||
if (token.children.some((child) => child.type === "code_inline")) {
|
||
const tokenLines = params.lines.slice(token.map[0], token.map[1]);
|
||
forEachInlineCodeSpan(
|
||
tokenLines.join("\n"),
|
||
(code, lineIndex, columnIndex) => {
|
||
const codeLines = code.split(newLineRe);
|
||
for (const [ i, line ] of codeLines.entries()) {
|
||
exclusions.push([
|
||
token.lineNumber - 1 + lineIndex + i,
|
||
i ? 0 : columnIndex,
|
||
line.length
|
||
]);
|
||
}
|
||
}
|
||
);
|
||
}
|
||
});
|
||
return exclusions;
|
||
};
|
||
|
||
/**
|
||
* Determines whether the specified range is within another range.
|
||
*
|
||
* @param {number[][]} ranges Array of ranges (line, index, length).
|
||
* @param {number} lineIndex Line index to check.
|
||
* @param {number} index Index to check.
|
||
* @param {number} length Length to check.
|
||
* @returns {boolean} True iff the specified range is within.
|
||
*/
|
||
const withinAnyRange = (ranges, lineIndex, index, length) => (
|
||
!ranges.every((span) => (
|
||
(lineIndex !== span[0]) ||
|
||
(index < span[1]) ||
|
||
(index + length > span[1] + span[2])
|
||
))
|
||
);
|
||
module.exports.withinAnyRange = withinAnyRange;
|
||
|
||
// Returns a range object for a line by applying a RegExp
|
||
module.exports.rangeFromRegExp = function rangeFromRegExp(line, regexp) {
|
||
let range = null;
|
||
const match = line.match(regexp);
|
||
if (match) {
|
||
const column = match.index + 1;
|
||
const length = match[0].length;
|
||
range = [ column, length ];
|
||
}
|
||
return range;
|
||
};
|
||
|
||
// Determines if the front matter includes a title
|
||
module.exports.frontMatterHasTitle =
|
||
function frontMatterHasTitle(frontMatterLines, frontMatterTitlePattern) {
|
||
const ignoreFrontMatter =
|
||
(frontMatterTitlePattern !== undefined) && !frontMatterTitlePattern;
|
||
const frontMatterTitleRe =
|
||
new RegExp(
|
||
String(frontMatterTitlePattern || "^\\s*\"?title\"?\\s*[:=]"),
|
||
"i"
|
||
);
|
||
return !ignoreFrontMatter &&
|
||
frontMatterLines.some((line) => frontMatterTitleRe.test(line));
|
||
};
|
||
|
||
/**
|
||
* Returns an object with information about reference links and images.
|
||
*
|
||
* @param {import("../helpers/micromark.cjs").Token[]} tokens Micromark tokens.
|
||
* @returns {Object} Reference link/image data.
|
||
*/
|
||
function getReferenceLinkImageData(tokens) {
|
||
const normalizeReference = (s) => s.toLowerCase().trim().replace(/\s+/g, " ");
|
||
const definitions = new Map();
|
||
const definitionLineIndices = [];
|
||
const duplicateDefinitions = [];
|
||
const references = new Map();
|
||
const shortcuts = new Map();
|
||
const filteredTokens =
|
||
micromark.filterByTypes(
|
||
tokens,
|
||
[
|
||
// definitionLineIndices
|
||
"definition", "gfmFootnoteDefinition",
|
||
// definitions and definitionLineIndices
|
||
"definitionLabelString", "gfmFootnoteDefinitionLabelString",
|
||
// references and shortcuts
|
||
"gfmFootnoteCall", "image", "link"
|
||
]
|
||
);
|
||
for (const token of filteredTokens) {
|
||
let labelPrefix = "";
|
||
// eslint-disable-next-line default-case
|
||
switch (token.type) {
|
||
case "definition":
|
||
case "gfmFootnoteDefinition":
|
||
// definitionLineIndices
|
||
for (let i = token.startLine; i <= token.endLine; i++) {
|
||
definitionLineIndices.push(i - 1);
|
||
}
|
||
break;
|
||
case "gfmFootnoteDefinitionLabelString":
|
||
labelPrefix = "^";
|
||
case "definitionLabelString": // eslint-disable-line no-fallthrough
|
||
{
|
||
// definitions and definitionLineIndices
|
||
const reference = normalizeReference(`${labelPrefix}${token.text}`);
|
||
if (definitions.has(reference)) {
|
||
duplicateDefinitions.push([ reference, token.startLine - 1 ]);
|
||
} else {
|
||
let destinationString = null;
|
||
const parent =
|
||
micromark.getTokenParentOfType(token, [ "definition" ]);
|
||
if (parent) {
|
||
destinationString = micromark.getTokenTextByType(
|
||
micromark.filterByPredicate(parent.children),
|
||
"definitionDestinationString"
|
||
);
|
||
}
|
||
definitions.set(
|
||
reference,
|
||
[ token.startLine - 1, destinationString ]
|
||
);
|
||
}
|
||
}
|
||
break;
|
||
case "gfmFootnoteCall":
|
||
case "image":
|
||
case "link":
|
||
{
|
||
let isShortcut = false;
|
||
let isFullOrCollapsed = false;
|
||
let labelText = null;
|
||
let referenceStringText = null;
|
||
const shortcutCandidate =
|
||
micromark.matchAndGetTokensByType(token.children, [ "label" ]);
|
||
if (shortcutCandidate) {
|
||
labelText =
|
||
micromark.getTokenTextByType(
|
||
shortcutCandidate[0].children, "labelText"
|
||
);
|
||
isShortcut = (labelText !== null);
|
||
}
|
||
const fullAndCollapsedCandidate =
|
||
micromark.matchAndGetTokensByType(
|
||
token.children, [ "label", "reference" ]
|
||
);
|
||
if (fullAndCollapsedCandidate) {
|
||
labelText =
|
||
micromark.getTokenTextByType(
|
||
fullAndCollapsedCandidate[0].children, "labelText"
|
||
);
|
||
referenceStringText =
|
||
micromark.getTokenTextByType(
|
||
fullAndCollapsedCandidate[1].children, "referenceString"
|
||
);
|
||
isFullOrCollapsed = (labelText !== null);
|
||
}
|
||
const footnote = micromark.matchAndGetTokensByType(
|
||
token.children,
|
||
[
|
||
"gfmFootnoteCallLabelMarker", "gfmFootnoteCallMarker",
|
||
"gfmFootnoteCallString", "gfmFootnoteCallLabelMarker"
|
||
],
|
||
[ "gfmFootnoteCallMarker", "gfmFootnoteCallString" ]
|
||
);
|
||
if (footnote) {
|
||
const callMarkerText = footnote[0].text;
|
||
const callString = footnote[1].text;
|
||
labelText = `${callMarkerText}${callString}`;
|
||
isShortcut = true;
|
||
}
|
||
// Track shortcuts separately due to ambiguity in "text [text] text"
|
||
if (isShortcut || isFullOrCollapsed) {
|
||
const referenceDatum = [
|
||
token.startLine - 1,
|
||
token.startColumn - 1,
|
||
token.text.length,
|
||
// @ts-ignore
|
||
labelText.length,
|
||
(referenceStringText || "").length
|
||
];
|
||
const reference =
|
||
normalizeReference(referenceStringText || labelText);
|
||
const dictionary = isShortcut ? shortcuts : references;
|
||
const referenceData = dictionary.get(reference) || [];
|
||
referenceData.push(referenceDatum);
|
||
dictionary.set(reference, referenceData);
|
||
}
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
return {
|
||
references,
|
||
shortcuts,
|
||
definitions,
|
||
duplicateDefinitions,
|
||
definitionLineIndices
|
||
};
|
||
}
|
||
module.exports.getReferenceLinkImageData = getReferenceLinkImageData;
|
||
|
||
/**
|
||
* Gets the most common line ending, falling back to the platform default.
|
||
*
|
||
* @param {string} input Markdown content to analyze.
|
||
* @param {Object} [os] Node.js "os" module.
|
||
* @returns {string} Preferred line ending.
|
||
*/
|
||
function getPreferredLineEnding(input, os) {
|
||
let cr = 0;
|
||
let lf = 0;
|
||
let crlf = 0;
|
||
const endings = input.match(newLineRe) || [];
|
||
for (const ending of endings) {
|
||
// eslint-disable-next-line default-case
|
||
switch (ending) {
|
||
case "\r":
|
||
cr++;
|
||
break;
|
||
case "\n":
|
||
lf++;
|
||
break;
|
||
case "\r\n":
|
||
crlf++;
|
||
break;
|
||
}
|
||
}
|
||
let preferredLineEnding = null;
|
||
if (!cr && !lf && !crlf) {
|
||
preferredLineEnding = (os && os.EOL) || "\n";
|
||
} else if ((lf >= crlf) && (lf >= cr)) {
|
||
preferredLineEnding = "\n";
|
||
} else if (crlf >= cr) {
|
||
preferredLineEnding = "\r\n";
|
||
} else {
|
||
preferredLineEnding = "\r";
|
||
}
|
||
return preferredLineEnding;
|
||
}
|
||
module.exports.getPreferredLineEnding = getPreferredLineEnding;
|
||
|
||
/**
|
||
* Normalizes the fields of a RuleOnErrorFixInfo instance.
|
||
*
|
||
* @param {Object} fixInfo RuleOnErrorFixInfo instance.
|
||
* @param {number} [lineNumber] Line number.
|
||
* @returns {Object} Normalized RuleOnErrorFixInfo instance.
|
||
*/
|
||
function normalizeFixInfo(fixInfo, lineNumber) {
|
||
return {
|
||
"lineNumber": fixInfo.lineNumber || lineNumber,
|
||
"editColumn": fixInfo.editColumn || 1,
|
||
"deleteCount": fixInfo.deleteCount || 0,
|
||
"insertText": fixInfo.insertText || ""
|
||
};
|
||
}
|
||
|
||
/**
|
||
* Fixes the specified error on a line of Markdown content.
|
||
*
|
||
* @param {string} line Line of Markdown content.
|
||
* @param {Object} fixInfo RuleOnErrorFixInfo instance.
|
||
* @param {string} [lineEnding] Line ending to use.
|
||
* @returns {string | null} Fixed content.
|
||
*/
|
||
function applyFix(line, fixInfo, lineEnding) {
|
||
const { editColumn, deleteCount, insertText } = normalizeFixInfo(fixInfo);
|
||
const editIndex = editColumn - 1;
|
||
return (deleteCount === -1) ?
|
||
null :
|
||
line.slice(0, editIndex) +
|
||
insertText.replace(/\n/g, lineEnding || "\n") +
|
||
line.slice(editIndex + deleteCount);
|
||
}
|
||
module.exports.applyFix = applyFix;
|
||
|
||
/**
|
||
* Applies as many fixes as possible to Markdown content.
|
||
*
|
||
* @param {string} input Lines of Markdown content.
|
||
* @param {Object[]} errors RuleOnErrorInfo instances.
|
||
* @returns {string} Corrected content.
|
||
*/
|
||
function applyFixes(input, errors) {
|
||
const lineEnding = getPreferredLineEnding(input, require("node:os"));
|
||
const lines = input.split(newLineRe);
|
||
// Normalize fixInfo objects
|
||
let fixInfos = errors
|
||
.filter((error) => error.fixInfo)
|
||
.map((error) => normalizeFixInfo(error.fixInfo, error.lineNumber));
|
||
// Sort bottom-to-top, line-deletes last, right-to-left, long-to-short
|
||
fixInfos.sort((a, b) => {
|
||
const aDeletingLine = (a.deleteCount === -1);
|
||
const bDeletingLine = (b.deleteCount === -1);
|
||
return (
|
||
(b.lineNumber - a.lineNumber) ||
|
||
(aDeletingLine ? 1 : (bDeletingLine ? -1 : 0)) ||
|
||
(b.editColumn - a.editColumn) ||
|
||
(b.insertText.length - a.insertText.length)
|
||
);
|
||
});
|
||
// Remove duplicate entries (needed for following collapse step)
|
||
let lastFixInfo = {};
|
||
fixInfos = fixInfos.filter((fixInfo) => {
|
||
const unique = (
|
||
(fixInfo.lineNumber !== lastFixInfo.lineNumber) ||
|
||
(fixInfo.editColumn !== lastFixInfo.editColumn) ||
|
||
(fixInfo.deleteCount !== lastFixInfo.deleteCount) ||
|
||
(fixInfo.insertText !== lastFixInfo.insertText)
|
||
);
|
||
lastFixInfo = fixInfo;
|
||
return unique;
|
||
});
|
||
// Collapse insert/no-delete and no-insert/delete for same line/column
|
||
lastFixInfo = {
|
||
"lineNumber": -1
|
||
};
|
||
for (const fixInfo of fixInfos) {
|
||
if (
|
||
(fixInfo.lineNumber === lastFixInfo.lineNumber) &&
|
||
(fixInfo.editColumn === lastFixInfo.editColumn) &&
|
||
!fixInfo.insertText &&
|
||
(fixInfo.deleteCount > 0) &&
|
||
lastFixInfo.insertText &&
|
||
!lastFixInfo.deleteCount) {
|
||
fixInfo.insertText = lastFixInfo.insertText;
|
||
lastFixInfo.lineNumber = 0;
|
||
}
|
||
lastFixInfo = fixInfo;
|
||
}
|
||
fixInfos = fixInfos.filter((fixInfo) => fixInfo.lineNumber);
|
||
// Apply all (remaining/updated) fixes
|
||
let lastLineIndex = -1;
|
||
let lastEditIndex = -1;
|
||
for (const fixInfo of fixInfos) {
|
||
const { lineNumber, editColumn, deleteCount } = fixInfo;
|
||
const lineIndex = lineNumber - 1;
|
||
const editIndex = editColumn - 1;
|
||
if (
|
||
(lineIndex !== lastLineIndex) ||
|
||
(deleteCount === -1) ||
|
||
((editIndex + deleteCount) <=
|
||
(lastEditIndex - ((deleteCount > 0) ? 0 : 1)))
|
||
) {
|
||
// @ts-ignore
|
||
lines[lineIndex] = applyFix(lines[lineIndex], fixInfo, lineEnding);
|
||
}
|
||
lastLineIndex = lineIndex;
|
||
lastEditIndex = editIndex;
|
||
}
|
||
// Return corrected input
|
||
return lines.filter((line) => line !== null).join(lineEnding);
|
||
}
|
||
module.exports.applyFixes = applyFixes;
|
||
|
||
/**
|
||
* Expands a path with a tilde to an absolute path.
|
||
*
|
||
* @param {string} file Path that may begin with a tilde.
|
||
* @param {Object} os Node.js "os" module.
|
||
* @returns {string} Absolute path (or original path).
|
||
*/
|
||
function expandTildePath(file, os) {
|
||
const homedir = os && os.homedir && os.homedir();
|
||
return homedir ? file.replace(/^~($|\/|\\)/, `${homedir}$1`) : file;
|
||
}
|
||
module.exports.expandTildePath = expandTildePath;
|
||
|
||
// Copied from markdownlint.js to avoid TypeScript compiler import() issue.
|
||
/**
|
||
* @typedef {Object} MarkdownItToken
|
||
* @property {string[][]} attrs HTML attributes.
|
||
* @property {boolean} block Block-level token.
|
||
* @property {MarkdownItToken[]} children Child nodes.
|
||
* @property {string} content Tag contents.
|
||
* @property {boolean} hidden Ignore element.
|
||
* @property {string} info Fence info.
|
||
* @property {number} level Nesting level.
|
||
* @property {number[]} map Beginning/ending line numbers.
|
||
* @property {string} markup Markup text.
|
||
* @property {Object} meta Arbitrary data.
|
||
* @property {number} nesting Level change.
|
||
* @property {string} tag HTML tag name.
|
||
* @property {string} type Token type.
|
||
* @property {number} lineNumber Line number (1-based).
|
||
* @property {string} line Line content.
|
||
*/
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