@podlite/schema/esm/plugin-heading.js

AST tools for Podlite markup language

export default () => tree => {
    const visit = node => {
        if (Array.isArray(node)) {
            node.forEach(i => {
                visit(i);
            });
        }
        else {
            if (node && node.type === 'block') {
                const matchHead = /^head(\d+)?/.exec(node.name);
                if (matchHead) {
                    node.name = 'head';
                    node.level = matchHead[1] || 1;
                    if (node.content[0]) {
                        const startText = node.content[0];
                        if (startText.text) {
                            let re = /(\s*#\s*)/;
                            const match = re.exec(startText.text);
                            if (match) {
                                startText.text = startText.text.replace(re, '');
                                node.config = { ...node.config, ...{ numbered: true } };
                            }
                        }
                    }
                }
                visit(node.content);
            }
        }
    };
    visit(tree);
    return tree;
};
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