markdown-it/lib/typographer.js

// Class of typographic replacement rules
//
'use strict';

// TODO:
// - fractionals 1/2, 1/4, 3/4 -> ½, ¼, ¾
// - miltiplication 2 x 4 -> 2 × 4


var assign   = require('./common/utils').assign;
var Ruler    = require('./ruler');


var _rules = [
  [ 'replace',      require('./rules_text/replace') ],
  [ 'smartquotes',  require('./rules_text/smartquotes') ]
];


function Typographer() {
  this.options = {};

  this.ruler = new Ruler();

  for (var i = 0; i < _rules.length; i++) {
    this.ruler.push(_rules[i][0], _rules[i][1]);
  }
}


Typographer.prototype.set = function (options) {
  assign(this.options, options);
};


Typographer.prototype.process = function (state) {
  var i, l, rules;

  rules = this.ruler.getRules('');

  for (i = 0, l = rules.length; i < l; i++) {
    rules[i](state);
  }
};


module.exports = Typographer;