md2hatena/lib/index.js

Markdown to Hatena Syntax converter

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.nodeToHatena = undefined;
exports.md2hatena = md2hatena;
exports.stringify = stringify;

var _unified = require('unified');

var _unified2 = _interopRequireDefault(_unified);

var _remarkParse = require('remark-parse');

var _remarkParse2 = _interopRequireDefault(_remarkParse);

var _nodeToHatena = require('./nodeToHatena');

var _nodeToHatena2 = _interopRequireDefault(_nodeToHatena);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function md2hatena(md) {
  return (0, _unified2.default)().use(_remarkParse2.default, { footnotes: true }).use(stringify).process(md).then(function (vfile) {
    return vfile.contents;
  });
}

function findInTree(node, type) {
  var nodes = [];
  if (node.children) {
    nodes = node.children.reduce(function (acc, n) {
      return acc.concat(findInTree(n, type));
    }, []);
  }
  if (node.type === type) {
    nodes.push(node);
  }
  return nodes;
}

function getDefinition(tree) {
  var definition = {};
  var footnoteDefinition = {};

  findInTree(tree, 'definition').forEach(function (n) {
    definition[n.identifier] = n.url;
  });
  findInTree(tree, 'footnoteDefinition').forEach(function (n) {
    footnoteDefinition[n.identifier] = n;
  });

  return { definition: definition, footnoteDefinition: footnoteDefinition };
}

function compiler(tree) {
  return (0, _nodeToHatena2.default)(tree, getDefinition(tree));
}

function stringify() {
  this.Compiler = compiler;
}

exports.nodeToHatena = _nodeToHatena2.default;