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Refactor use of micromark so token stream is authentic by shimming undefined link reference handling, remove no-longer-necessary parse operation in MD034.

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David Anson 2024-10-21 20:56:22 -07:00
parent 1d9bd4725d
commit 38b4ec0c2f
6 changed files with 369 additions and 122 deletions
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44
helpers/helpers.js
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@ -369,11 +369,23 @@ module.exports.frontMatterHasTitle =
*/
function getReferenceLinkImageData(tokens) {
const normalizeReference = (s) => s.toLowerCase().trim().replace(/\s+/g, " ");
const references = new Map();
const shortcuts = new Map();
const addReferenceToDictionary = (token, label, isShortcut) => {
const referenceDatum = [
token.startLine - 1,
token.startColumn - 1,
token.text.length
];
const reference = normalizeReference(label);
const dictionary = isShortcut ? shortcuts : references;
const referenceData = dictionary.get(reference) || [];
referenceData.push(referenceDatum);
dictionary.set(reference, referenceData);
};
const definitions = new Map();
const definitionLineIndices = [];
const duplicateDefinitions = [];
const references = new Map();
const shortcuts = new Map();
const filteredTokens =
micromark.filterByTypes(
tokens,
@ -383,7 +395,9 @@ function getReferenceLinkImageData(tokens) {
// definitions and definitionLineIndices
"definitionLabelString", "gfmFootnoteDefinitionLabelString",
// references and shortcuts
"gfmFootnoteCall", "image", "link"
"gfmFootnoteCall", "image", "link",
// undefined link labels
"undefinedReferenceCollapsed", "undefinedReferenceFull", "undefinedReferenceShortcut"
]
);
for (const token of filteredTokens) {
@ -439,22 +453,20 @@ function getReferenceLinkImageData(tokens) {
}
// Track link (handle shortcuts separately due to ambiguity in "text [text] text")
if (isShortcut || isFullOrCollapsed) {
const referenceDatum = [
token.startLine - 1,
token.startColumn - 1,
token.text.length,
label.length,
(referenceString?.text || "").length
];
const reference =
normalizeReference(referenceString?.text || label);
const dictionary = isShortcut ? shortcuts : references;
const referenceData = dictionary.get(reference) || [];
referenceData.push(referenceDatum);
dictionary.set(reference, referenceData);
addReferenceToDictionary(token, referenceString?.text || label, isShortcut);
}
}
break;
case "undefinedReferenceCollapsed":
case "undefinedReferenceFull":
case "undefinedReferenceShortcut":
{
const undefinedReference = micromark.getDescendantsByType(token, [ "undefinedReference" ])[0];
const label = undefinedReference.children.map((t) => t.text).join("");
const isShortcut = (token.type === "undefinedReferenceShortcut");
addReferenceToDictionary(token, label, isShortcut);
}
break;
}
}
return {