Dumping add quote to string even it is not necessary #470
Description
As title.
Test Code
const jsYaml = require("js-yaml");
const fs = require("fs");
const yamlStr = jsYaml.dump({ url: "https://github.com/nodeca/js-yaml" });
fs.writeFileSync("foo.yml", yamlStr, { encoding: "utf8" });Expected Result
url: https://github.com/nodeca/js-yamlActual Result
url: 'https://github.com/nodeca/js-yaml'Problem
Line 294 in b6d2609
Lines 192 to 205 in b6d2609
All of these characters ( except0xFEFF ) are safe inside string. Only colon cannot be followed by space or placed at the end of line.