36 lines
951 B
JavaScript
36 lines
951 B
JavaScript
const visitChildren = require('unist-util-visit-children');
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function hasId(node, index, parent) {
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// image references should always be inside paragraphs.
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if (node.type !== 'paragraph') return;
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const idHolder = node.children[0];
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if (idHolder.type === 'imageReference') {
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if (node.children.length > 1) {
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console.log('oooops, too many links together!');
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// TODO: optional chaining
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} else if (
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parent.children[index + 1] &&
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parent.children[index + 1].type === 'code'
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) {
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console.log('found adjacent code block for id ' + idHolder.identifier);
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} else {
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console.log(
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'ooops! the id ' + idHolder.identifier + ' is not next to a code block'
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);
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}
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}
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}
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function plugin() {
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// we don't want to recurse into the tree, hence visitChildren
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const visit = visitChildren(hasId);
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return transformer;
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function transformer(tree) {
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visit(tree);
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}
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}
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module.exports = plugin;
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