precis-js/lib/PrecisEnforcer.js

A JavaScript implementation of RFC 7564 (The PRECIS Framework).

// Generated by CoffeeScript 1.10.0
(function() {
  var PrecisEnforcer, precis, ucs2;

  precis = require('./constants');

  ucs2 = require('punycode').ucs2;

  module.exports = PrecisEnforcer = (function() {
    function PrecisEnforcer(preparer, propertyReader, widthMapper, normalizer, directionalityValidator) {
      this.preparer = preparer;
      this.propertyReader = propertyReader;
      this.widthMapper = widthMapper;
      this.normalizer = normalizer;
      this.directionalityValidator = directionalityValidator;
    }

    PrecisEnforcer.prototype.enforce = function(profile, string) {
      var codepoints;
      codepoints = this.preparer.prepare(profile, string);
      if (typeof profile.mapWidth === 'function') {
        profile.mapWidth(codepoints, this);
      } else if (profile.widthMapping === precis.WIDTH_MAPPING.EAW) {
        this.widthMapper.map(codepoints);
      }
      if (typeof profile.map === 'function') {
        profile.map(codepoints, this);
      }
      if (typeof profile.mapCase === 'function') {
        profile.mapCase(codepoints, this);
      } else if (profile.caseMapping === precis.CASE_MAPPING.LOWERCASE) {
        codepoints = ucs2.decode(ucs2.encode(codepoints).toLowerCase());
      }
      if (typeof profile.normalize === 'function') {
        profile.normalize(codepoints, this);
      } else {
        codepoints = this.normalizer.normalize(profile.normalization, codepoints);
      }
      if (typeof profile.validateDirectionality === 'function') {
        profile.validateDirectionality(codepoints, this);
      } else if (profile.directionality === precis.DIRECTIONALITY.BIDI) {
        this.directionalityValidator.validate(codepoints);
      }
      if (typeof profile.validate === 'function') {
        profile.validate(codepoints, this);
      }
      return ucs2.encode(codepoints);
    };

    return PrecisEnforcer;

  })();

}).call(this);