myst-parser/dist/transforms/listItemParagraphs.js

Markdown parser for MyST markdown in JavaScript

import { selectAll } from 'unist-util-select';
export function listItemParagraphsTransform(tree) {
    // Fix mixed content in list items
    selectAll('listItem', tree).forEach((node) => {
        if (!node.children || node.children.length === 0)
            return;
        // Define phrasing content types
        const phrasingTypes = new Set([
            'text',
            'emphasis',
            'strong',
            'delete',
            'link',
            'image',
            'break',
            'subscript',
            'superscript',
            'smallcaps',
            'inlineCode',
            'inlineMath',
            'mystRole',
            'footnoteReference',
            'crossReference',
            'cite',
            'citeGroup',
            'html',
        ]);
        // Check if this list item has any phrasing content
        const hasPhrasingContent = node.children.some((child) => phrasingTypes.has(child.type));
        if (hasPhrasingContent) {
            // Group consecutive phrasing content into paragraphs
            const newChildren = [];
            let currentPhrasingGroup = [];
            node.children.forEach((child) => {
                if (phrasingTypes.has(child.type)) {
                    currentPhrasingGroup.push(child);
                }
                else {
                    // If we have accumulated phrasing content, wrap it in a paragraph
                    if (currentPhrasingGroup.length > 0) {
                        newChildren.push({
                            type: 'paragraph',
                            children: currentPhrasingGroup,
                        });
                        currentPhrasingGroup = [];
                    }
                    // Add the flow content as-is
                    newChildren.push(child);
                }
            });
            // Don't forget any remaining phrasing content
            if (currentPhrasingGroup.length > 0) {
                newChildren.push({
                    type: 'paragraph',
                    children: currentPhrasingGroup,
                });
            }
            node.children = newChildren;
        }
    });
}