odin-javascript-exercises/node_modules/external-editor/example_sync.js
2017-12-15 12:56:14 -06:00

34 lines
1 KiB
JavaScript

var ExternalEditor = require('./main');
var readline = require('readline');
var rl = readline.createInterface({
input: process.stdin,
output: null
});
var message = '\n\n# Please Write a message\n# Any line starting with # is ignored';
process.stdout.write('Please write a message. (press enter to launch your preferred editor)');
editor = new ExternalEditor(message);
rl.on('line', function () {
try {
// Get response, remove all lines starting with #, remove any trailing newlines.
var response = editor.run().replace(/^#.*\n?/gm, '').replace(/\n+$/g, '').trim();
if (response.length === 0) {
readline.moveCursor(process.stdout, 0, -1);
process.stdout.write('Your message was empty, please try again. (press enter to launch your preferred editor)');
} else {
process.stdout.write('Your Message:\n');
process.stdout.write(response);
process.stdout.write('\n');
rl.close();
}
} catch (err) {
process.stderr.write(err.message);
process.stdout.write('\n');
rl.close();
}
});