A diff library to compare text differences between two texts.
This is a fork of cemerick/jsdifflib which has been adapted to render the HTML on the server.
npm install node-jsdifflibjsdifflib is a Javascript library that provides:
- A partial reimplementation of Python’s difflib module (specifically, the SequenceMatcher class)
- A visual diff view generator, that offers side-by-side as well as inline formatting of file data
diff(baseText, newText[, options])options
- baseTextName: [string] the title to be displayed above the base text listing in the diff view [default="Base Text"]
- newTextName: [string] the title to be displayed above the new text listing in the diff view [default="New Text"]
- contextSize: [int] the number of lines of context to show around differences; by default, all lines are shown
- inline: [boolean] if false, a side-by-side diff view is generated (default); if true, an inline diff view is generated
- colgroup: [object/boolean] whether to add colgroup tag to table [default = false]
- th: [int] The width (%) of th elements (lines) [default=5]
- td: [int] The width (%) of td elements (content) [default=45]
jsdifflib comes with a ready to use CSS file (assets/jsdifflib.css) or you can use a custom one.
const http = require("http");
const diff = require('node-jsdifflib');
const baseFile = "console.log(5);"
const newFile = "\"use strict\";\nconsole.log(5);";
http.createServer(function(req, res){
if (req.url === '/favicon.ico') {
res.writeHead(200, {'Content-Type': 'image/x-icon'} );
return res.end();
}
var output = diff(baseFile, newFile);
res.writeHead(200, {'Content-Type': 'text/html'});
res.end(`<html>
<head>
<link rel="stylesheet" href="https://cdn.rawgit.com/marcosc90/node-jsdifflib/8838a6401c6933ca3faa1085bc1ec9b8174a6db8/assets/jsdifflib.css" />
</head>
<body>
${output}
</body>
</html>`);
}).listen(8081, function(){
console.log("Server started at: http://localhost:8081");
});BSD
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