sugar-language/language/internal/convertCharacterWidth.js

Language module for the Sugar Javascript utility library.

'use strict';

var widthConversionTable = require('../var/widthConversionTable');

function convertCharacterWidth(str, mode, reg, type) {
  var table = widthConversionTable[type];
  mode = (mode || '').replace(/all/, '').replace(/(\w)lphabet|umbers?|atakana|paces?|unctuation/g, '$1');
  return str.replace(reg, function(c) {
    var entry = table[c], to;
    if (entry) {
      if (mode === '' && entry.all) {
        return entry.all;
      } else {
        for (var i = 0, len = mode.length; i < len; i++) {
          to = entry[mode.charAt(i)];
          if (to) {
            return to;
          }
        }
      }
    }
    return c;
  });
}

module.exports = convertCharacterWidth;