28 lines
803 B
JavaScript
28 lines
803 B
JavaScript
// TODO: should we add this to our commonmark fork instead?
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// we loop through nodes and try to merge all texts
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export default function mergeTextNodes(ast) {
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// https://github.com/commonmark/commonmark.js/blob/master/lib/node.js#L268
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const walker = ast.walker();
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let event;
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// eslint-disable-next-line no-cond-assign
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while (event = walker.next()) {
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const { entering, node } = event;
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const { type } = node;
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if (entering && type === 'text') {
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while (node._next && node._next.type === 'text') {
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const next = node._next;
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node.literal += next.literal;
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node._next = next._next;
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if (node._next) {
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node._next._prev = node;
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}
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if (node._parent._lastChild === next) {
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node._parent._lastChild = node;
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}
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}
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walker.resumeAt(node, false);
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}
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}
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return ast;
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}
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