legal-markdown-js/dist/extensions/parsers/implementations/pandoc-native.js

Node.js implementation of LegalMarkdown for processing legal documents with markdown and YAML - Complete feature parity with Ruby version

import { spawn } from 'child_process';
/**
 * Native pandoc implementation for Node.js
 */
export class PandocNative {
    options;
    constructor(options = {}) {
        this.options = {
            timeout: 10000, // 10 seconds default timeout
            verbose: false,
            ...options,
        };
    }
    /**
     * Convert content using native pandoc binary
     */
    async convert(content, from, to) {
        return new Promise((resolve, reject) => {
            const args = ['-f', from, '-t', to, '--wrap=none'];
            // Add any additional arguments
            if (this.options.args) {
                args.push(...this.options.args);
            }
            if (this.options.verbose) {
                console.log(`Running pandoc with args: ${args.join(' ')}`);
            }
            const pandoc = spawn('pandoc', args);
            let output = '';
            let error = '';
            // Set up timeout
            const timeout = setTimeout(() => {
                pandoc.kill();
                reject(new Error(`Pandoc conversion timed out after ${this.options.timeout}ms`));
            }, this.options.timeout);
            pandoc.stdout.on('data', data => {
                output += data.toString();
            });
            pandoc.stderr.on('data', data => {
                error += data.toString();
            });
            pandoc.on('close', code => {
                clearTimeout(timeout);
                if (code === 0) {
                    resolve(output);
                }
                else {
                    reject(new Error(`Pandoc failed with code ${code}: ${error}`));
                }
            });
            pandoc.on('error', err => {
                clearTimeout(timeout);
                reject(new Error(`Failed to start pandoc: ${err.message}`));
            });
            // Write input and close stdin
            pandoc.stdin.write(content);
            pandoc.stdin.end();
        });
    }
}
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