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import { defaultMarkdownSerializer } from '~/lib/prosemirror_markdown_serializer';
import { HIGHER_PARSE_RULE_PRIORITY } from '../constants';
// Transforms generated HTML back to GFM for Banzai::Filter::MathFilter
export default () => ({
name: 'math',
schema: {
parseDOM: [
// Matches HTML generated by Banzai::Filter::MathFilter
{
tag: 'code.code.math[data-math-style=inline]',
priority: HIGHER_PARSE_RULE_PRIORITY,
},
// Matches HTML after being transformed by app/assets/javascripts/behaviors/markdown/render_math.js
{
tag: 'span.katex',
contentElement: 'annotation[encoding="application/x-tex"]',
},
],
toDOM: () => ['code', { class: 'code math', 'data-math-style': 'inline' }, 0],
},
toMarkdown: {
escape: false,
open(state, mark, parent, index) {
return `$${defaultMarkdownSerializer.marks.code.open(state, mark, parent, index)}`;
},
close(state, mark, parent, index) {
return `${defaultMarkdownSerializer.marks.code.close(state, mark, parent, index)}$`;
},
},
});
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