locutus/php/ctype/ctype_cntrl.js

Locutus other languages' standard libraries to JavaScript for fun and educational purposes

'use strict';

module.exports = function ctype_cntrl(text) {
  // eslint-disable-line camelcase
  //  discuss at: https://locutus.io/php/ctype_cntrl/
  // original by: Brett Zamir (https://brett-zamir.me)
  //   example 1: ctype_cntrl('\u0020')
  //   returns 1: false
  //   example 2: ctype_cntrl('\u001F')
  //   returns 2: true

  var setlocale = require('../strings/setlocale');
  if (typeof text !== 'string') {
    return false;
  }
  // ensure setup of localization variables takes place
  setlocale('LC_ALL', 0);

  var $global = typeof window !== 'undefined' ? window : global;
  $global.$locutus = $global.$locutus || {};
  var $locutus = $global.$locutus;
  var p = $locutus.php;

  return text.search(p.locales[p.localeCategories.LC_CTYPE].LC_CTYPE.ct) !== -1;
};
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