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Refactor MD051/link-fragments slightly to reduce dependencies.

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David Anson 2022-04-20 21:27:04 -07:00
parent bd92ec3fea
commit 8c5f28c2f0
2 changed files with 47 additions and 56 deletions
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48
demo/markdownlint-browser.js
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@ -4395,8 +4395,7 @@ module.exports = {
"use strict";
// @ts-check
var _a = __webpack_require__(/*! ../helpers */ "../helpers/helpers.js"), addError = _a.addError, escapeForRegExp = _a.escapeForRegExp, filterTokens = _a.filterTokens, forEachLine = _a.forEachLine, forEachHeading = _a.forEachHeading, htmlElementRe = _a.htmlElementRe, overlapsAnyRange = _a.overlapsAnyRange;
var _b = __webpack_require__(/*! ./cache */ "../lib/cache.js"), codeBlockAndSpanRanges = _b.codeBlockAndSpanRanges, lineMetadata = _b.lineMetadata;
var _a = __webpack_require__(/*! ../helpers */ "../helpers/helpers.js"), addError = _a.addError, escapeForRegExp = _a.escapeForRegExp, filterTokens = _a.filterTokens, forEachInlineChild = _a.forEachInlineChild, forEachHeading = _a.forEachHeading, htmlElementRe = _a.htmlElementRe;
// Regular expression for identifying HTML anchor names
var identifierRe = /(?:id|name)\s*=\s*['"]?([^'"\s>]+)/iu;
/**
@ -4423,42 +4422,39 @@ module.exports = {
"tags": ["links"],
"function": function MD051(params, onError) {
var fragments = new Set();
// Process headings
forEachHeading(params, function (heading, content, inline) {
fragments.add(convertHeadingToHTMLFragment(inline));
});
var exclusions = codeBlockAndSpanRanges();
forEachLine(lineMetadata(), function (line, lineIndex, inCode) {
// Process HTML anchors
var processHtmlToken = function (token) {
var match = null;
// eslint-disable-next-line no-unmodified-loop-condition
while (!inCode && ((match = htmlElementRe.exec(line)) !== null)) {
while ((match = htmlElementRe.exec(token.content)) !== null) {
var tag = match[0], element = match[2];
if ((element.toLowerCase() === "a") &&
!overlapsAnyRange(exclusions, lineIndex, match.index, match[0].length)) {
if (element.toLowerCase() === "a") {
var idMatch = identifierRe.exec(tag);
if (idMatch) {
fragments.add("#".concat(idMatch[1]));
}
}
}
});
filterTokens(params, "inline", function (token) {
for (var _i = 0, _a = token.children; _i < _a.length; _i++) {
var child = _a[_i];
var attrs = child.attrs, lineNumber = child.lineNumber, line = child.line, type = child.type;
if (type === "link_open") {
var href = attrs.find(function (attr) { return attr[0] === "href"; });
var id = href && href[1];
if (id && (id.length > 1) && (id[0] === "#") && !fragments.has(id)) {
var context = id;
var range = null;
var match = line.match(new RegExp("\\[.*?\\]\\(".concat(escapeForRegExp(context), "\\)")));
if (match) {
context = match[0];
range = [match.index + 1, match[0].length];
}
addError(onError, lineNumber, null, context, range);
}
};
filterTokens(params, "html_block", processHtmlToken);
forEachInlineChild(params, "html_inline", processHtmlToken);
// Process link fragments
forEachInlineChild(params, "link_open", function (token) {
var attrs = token.attrs, lineNumber = token.lineNumber, line = token.line;
var href = attrs.find(function (attr) { return attr[0] === "href"; });
var id = href && href[1];
if (id && (id.length > 1) && (id[0] === "#") && !fragments.has(id)) {
var context = id;
var range = null;
var match = line.match(new RegExp("\\[.*?\\]\\(".concat(escapeForRegExp(context), "\\)")));
if (match) {
context = match[0];
range = [match.index + 1, match[0].length];
}
addError(onError, lineNumber, null, context, range);
}
});
}

55
lib/md051.js
View file

@ -2,9 +2,8 @@
"use strict";
const { addError, escapeForRegExp, filterTokens, forEachLine, forEachHeading,
htmlElementRe, overlapsAnyRange } = require("../helpers");
const { codeBlockAndSpanRanges, lineMetadata } = require("./cache");
const { addError, escapeForRegExp, filterTokens, forEachInlineChild,
forEachHeading, htmlElementRe } = require("../helpers");
// Regular expression for identifying HTML anchor names
const identifierRe = /(?:id|name)\s*=\s*['"]?([^'"\s>]+)/iu;
@ -39,45 +38,41 @@ module.exports = {
"tags": [ "links" ],
"function": function MD051(params, onError) {
const fragments = new Set();
// Process headings
forEachHeading(params, (heading, content, inline) => {
fragments.add(convertHeadingToHTMLFragment(inline));
});
const exclusions = codeBlockAndSpanRanges();
forEachLine(lineMetadata(), (line, lineIndex, inCode) => {
// Process HTML anchors
const processHtmlToken = (token) => {
let match = null;
// eslint-disable-next-line no-unmodified-loop-condition
while (!inCode && ((match = htmlElementRe.exec(line)) !== null)) {
while ((match = htmlElementRe.exec(token.content)) !== null) {
const [ tag, , element ] = match;
if (
(element.toLowerCase() === "a") &&
!overlapsAnyRange(exclusions, lineIndex, match.index, match[0].length)
) {
if (element.toLowerCase() === "a") {
const idMatch = identifierRe.exec(tag);
if (idMatch) {
fragments.add(`#${idMatch[1]}`);
}
}
}
});
filterTokens(params, "inline", (token) => {
for (const child of token.children) {
const { attrs, lineNumber, line, type } = child;
if (type === "link_open") {
const href = attrs.find((attr) => attr[0] === "href");
const id = href && href[1];
if (id && (id.length > 1) && (id[0] === "#") && !fragments.has(id)) {
let context = id;
let range = null;
const match = line.match(
new RegExp(`\\[.*?\\]\\(${escapeForRegExp(context)}\\)`)
);
if (match) {
context = match[0];
range = [ match.index + 1, match[0].length ];
}
addError(onError, lineNumber, null, context, range);
}
};
filterTokens(params, "html_block", processHtmlToken);
forEachInlineChild(params, "html_inline", processHtmlToken);
// Process link fragments
forEachInlineChild(params, "link_open", (token) => {
const { attrs, lineNumber, line } = token;
const href = attrs.find((attr) => attr[0] === "href");
const id = href && href[1];
if (id && (id.length > 1) && (id[0] === "#") && !fragments.has(id)) {
let context = id;
let range = null;
const match = line.match(
new RegExp(`\\[.*?\\]\\(${escapeForRegExp(context)}\\)`)
);
if (match) {
context = match[0];
range = [ match.index + 1, match[0].length ];
}
addError(onError, lineNumber, null, context, range);
}
});
}