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Add support for inserting anchors #360

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Add support for inserting anchors #360

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31 changes: 31 additions & 0 deletions lib/transform.js
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Original file line number Diff line number Diff line change
Expand Up @@ -112,6 +112,7 @@ function getMarkdownHeaders (lines, start, maxHeaderLevel, minHeaderLevel, synta
, name : extractText(x)
, line : x.loc.start.line
, node : x
, href : undefined // need to find a way to extract from, prev, next & current node
};
}
else {
Expand Down Expand Up @@ -194,6 +195,30 @@ function detectLineEnding(content, defaultEol) {
return eol || defaultEol;
}

function getContentWithAnchors(docNodes, content, config, tocableStart, maxHeaderLevel, minHeaderLevel, eol){
var headers = getMarkdownHeaders(docNodes, tocableStart, maxHeaderLevel, minHeaderLevel);
var newContent = '';
var startIndex = 0;

for (var i = 0; i < headers.length; i++) {
var header = headers[i];

if (header.href === undefined){
newContent += content.slice(startIndex, header.node.range[0]);
newContent += generateHeaderWithAnchor(header.node.raw, config, eol);
startIndex = header.node.range[1] + 1;
}
}

newContent += content.slice(startIndex);
return newContent;
}

function generateHeaderWithAnchor(text, config, eol){
// need to use config to build string
return text;
}

exports = module.exports = function transform(content, mode, maxHeaderLevel, minHeaderLevel, minTocItems, title, notitle, entryPrefix, processAll, updateOnly, syntax, options) {
options ??= {};
options.toc ??= {};
Expand Down Expand Up @@ -280,6 +305,12 @@ exports = module.exports = function transform(content, mode, maxHeaderLevel, min

var tocPosition = tocs.positions[0];
var tocableStart = !processAll ? tocPosition.end.range[1] : startPos;

if (options?.anchor?.style && options.anchor.style != 'none'){
content = getContentWithAnchors(docNodes, content, options.anchor, tocableStart, maxHeaderLevel, minHeaderLevel, eol);
docNodes = md.parse(content);
}

var headers = getMarkdownHeaders(docNodes, tocableStart, maxHeaderLevel, minHeaderLevel, syntax)
.concat(getHtmlHeaders(docNodes, tocableStart, maxHeaderLevelHtml, minHeaderLevel, true));

Expand Down