Okay, I can help you set up a Node.js program to read a Word document (`.docx`), find text based on a concordance file (JSON), replace it, and save the result. This process involves directly manipulating the underlying XML structure of the `.docx` file. We'll use the `pizzip` library to handle the zip archive format of `.docx` files and `xmldom` to parse and manipulate the XML content. **Note:** This script performs replacements within individual text elements (``) in the Word document's XML. If a word you want to replace is split across different formatting runs (e.g., part bold, part not), this basic script might not replace it correctly. Handling such cases requires significantly more complex logic to reconstruct the XML structure. You will need to provide your own `input.docx` file for the script to process. { "name": "docx-replacer", "version": "1.0.0", "description": "Replace text in DOCX based on concordance", "main": "index.js", "type": "commonjs", "scripts": { "start": "node index.js" }, "dependencies": { "pizzip": "^3.1.4", "xmldom": "^0.6.0" } } { "World": "Globe", "document": "file", "text": "content", "Hello": "Greetings" } const fs = require('fs'); const PizZip = require('pizzip'); const { DOMParser, XMLSerializer } = require('xmldom'); const path = require('path'); // --- Configuration --- const inputFilePath = 'input.docx'; // User needs to provide this file const outputFilePath = 'output.docx'; const concordanceFilePath = 'concordance.json'; const wordDocumentPath = 'word/document.xml'; // Path inside the DOCX zip // --- End Configuration --- function replaceTextInDocx(inputPath, outputPath, concordance) { try { // 1. Read the input DOCX file if (!fs.existsSync(inputPath)) { console.error(`Error: Input file not found at ${inputPath}`); console.log("Please create an 'input.docx' file in the project directory."); return; } const content = fs.readFileSync(inputPath, 'binary'); const zip = new PizZip(content); // 2. Load the main document XML const docXmlFile = zip.file(wordDocumentPath); if (!docXmlFile) { console.error(`Error: ${wordDocumentPath} not found in the DOCX file.`); return; } const docXmlStr = docXmlFile.asText(); // 3. Parse the XML const parser = new DOMParser(); const doc = parser.parseFromString(docXmlStr, 'text/xml'); // 4. Get all text elements () const textNodes = doc.getElementsByTagName('w:t'); let replacementsMade = 0; // 5. Iterate through text elements and replace content for (let i = 0; i < textNodes.length; i++) { const textNode = textNodes[i]; let originalText = textNode.textContent; let modifiedText = originalText; // Apply replacements from concordance for (const key in concordance) { if (concordance.hasOwnProperty(key)) { // Basic case-sensitive replacement. // Use regex for more complex scenarios (e.g., case-insensitive, whole word) // Be cautious with regex flags and special characters in keys. const regex = new RegExp(key.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&'), 'g'); // Escape regex special chars in key modifiedText = modifiedText.replace(regex, concordance[key]); } } // Update node content if changed if (modifiedText !== originalText) { textNode.textContent = modifiedText; // Preserve space attribute if necessary (Word sometimes uses this) if (originalText.trim() !== originalText && modifiedText.trim() === modifiedText) { // If original had leading/trailing spaces and modified doesn't, // check for xml:space="preserve" attribute and potentially keep it. // For simplicity, we just replace content here. More complex handling // might be needed for perfect whitespace preservation. const spaceAttr = textNode.getAttribute('xml:space'); if (!spaceAttr) { // Word often implies preserve if starts/ends with space. // Let's add it if we removed significant whitespace. textNode.setAttribute('xml:space', 'preserve'); } } else if (originalText.trim() === originalText && modifiedText.trim() !== modifiedText) { // If we added leading/trailing space, ensure preserve attribute is set. textNode.setAttribute('xml:space', 'preserve'); } replacementsMade++; } } console.log(`Total replacements made: ${replacementsMade}`); // 6. Serialize the modified XML back to string const serializer = new XMLSerializer(); const newDocXmlStr = serializer.serializeToString(doc); // 7. Update the zip object with the modified XML zip.file(wordDocumentPath, newDocXmlStr); // 8. Generate the new DOCX file content const buf = zip.generate({ type: 'nodebuffer', compression: 'DEFLATE', }); // 9. Write the output file fs.writeFileSync(outputPath, buf); console.log(`Successfully processed file. Output saved to ${outputPath}`); } catch (error) { console.error('An error occurred:', error); } } // --- Main Execution --- try { // Load concordance data if (!fs.existsSync(concordanceFilePath)) { console.error(`Error: Concordance file not found at ${concordanceFilePath}`); return; } const concordanceJson = fs.readFileSync(concordanceFilePath, 'utf-8'); const concordanceData = JSON.parse(concordanceJson); console.log('Starting DOCX processing...'); replaceTextInDocx(inputFilePath, outputFilePath, concordanceData); } catch (error) { console.error('Failed to load or parse concordance file:', error); } // --- End Main Execution --- **To run this:** 1. Make sure you have Node.js installed in your environment. 2. Create a file named `input.docx` in the same directory. Add some text to it, including words found in `concordance.json` (e.g., "Hello World", "This document contains text."). 3. Run `npm install` in the terminal to install the required dependencies (`pizzip`, `xmldom`). 4. Run `node index.js` in the terminal. 5. Check for a new file named `output.docx`. Open it to see if the text has been replaced according to the `concordance.json` file.