@radicle/gray-matter/lib/parse.js

Parse front-matter from a string or file. Fast, reliable and easy to use. Parses YAML front matter by default, but also has support for YAML, JSON, TOML or Coffee Front-Matter, with options to set custom delimiters. Used by metalsmith, assemble, verb and

'use strict';

const getEngine = require('./engine');
const defaults = require('./defaults');

module.exports = function(language, str, options) {
  const opts = defaults(options);
  const engine = getEngine(language, opts);
  if (typeof engine.parse !== 'function') {
    throw new TypeError('expected "' + language + '.parse" to be a function');
  }
  return engine.parse(str, opts);
};