git.r.bdr.sh - rbdr/dotfiles/blob

   1 'use strict';
   2
   3 var callable = require('es5-ext/object/valid-callable')
   4   , isString = require('es5-ext/string/is-string')
   5   , get      = require('./get')
   6
   7   , isArray = Array.isArray, call = Function.prototype.call;
   8
   9 module.exports = function (iterable, cb/*, thisArg*/) {
  10         var mode, thisArg = arguments[2], result, doBreak, broken, i, l, char, code;
  11         if (isArray(iterable)) mode = 'array';
  12         else if (isString(iterable)) mode = 'string';
  13         else iterable = get(iterable);
  14
  15         callable(cb);
  16         doBreak = function () { broken = true; };
  17         if (mode === 'array') {
  18                 iterable.some(function (value) {
  19                         call.call(cb, thisArg, value, doBreak);
  20                         if (broken) return true;
  21                 });
  22                 return;
  23         }
  24         if (mode === 'string') {
  25                 l = iterable.length;
  26                 for (i = 0; i < l; ++i) {
  27                         char = iterable[i];
  28                         if ((i + 1) < l) {
  29                                 code = char.charCodeAt(0);
  30                                 if ((code >= 0xD800) && (code <= 0xDBFF)) char += iterable[++i];
  31                         }
  32                         call.call(cb, thisArg, char, doBreak);
  33                         if (broken) break;
  34                 }
  35                 return;
  36         }
  37         result = iterable.next();
  38
  39         while (!result.done) {
  40                 call.call(cb, thisArg, result.value, doBreak);
  41                 if (broken) return;
  42                 result = iterable.next();
  43         }
  44 };