Palak Handa / startUpJalsa-Backend

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node_modules/hoek/lib/escape.js 2.61 KB
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f7563de62   Palak Handa   first commit 
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  // Declare internals
  
  var internals = {};
  
  
  exports.escapeJavaScript = function (input) {
  
      if (!input) {
          return '';
      }
  
      var escaped = '';
  
      for (var i = 0, il = input.length; i < il; ++i) {
  
          var charCode = input.charCodeAt(i);
  
          if (internals.isSafe(charCode)) {
              escaped += input[i];
          }
          else {
              escaped += internals.escapeJavaScriptChar(charCode);
          }
      }
  
      return escaped;
  };
  
  
  exports.escapeHtml = function (input) {
  
      if (!input) {
          return '';
      }
  
      var escaped = '';
  
      for (var i = 0, il = input.length; i < il; ++i) {
  
          var charCode = input.charCodeAt(i);
  
          if (internals.isSafe(charCode)) {
              escaped += input[i];
          }
          else {
              escaped += internals.escapeHtmlChar(charCode);
          }
      }
  
      return escaped;
  };
  
  
  internals.escapeJavaScriptChar = function (charCode) {
  
      if (charCode >= 256) {
          return '\\u' + internals.padLeft('' + charCode, 4);
      }
  
      var hexValue = new Buffer(String.fromCharCode(charCode), 'ascii').toString('hex');
      return '\\x' + internals.padLeft(hexValue, 2);
  };
  
  
  internals.escapeHtmlChar = function (charCode) {
  
      var namedEscape = internals.namedHtml[charCode];
      if (typeof namedEscape !== 'undefined') {
          return namedEscape;
      }
  
      if (charCode >= 256) {
          return '&#' + charCode + ';';
      }
  
      var hexValue = new Buffer(String.fromCharCode(charCode), 'ascii').toString('hex');
      return '&#x' + internals.padLeft(hexValue, 2) + ';';
  };
  
  
  internals.padLeft = function (str, len) {
  
      while (str.length < len) {
          str = '0' + str;
      }
  
      return str;
  };
  
  
  internals.isSafe = function (charCode) {
  
      return (typeof internals.safeCharCodes[charCode] !== 'undefined');
  };
  
  
  internals.namedHtml = {
      '38': '&amp;',
      '60': '&lt;',
      '62': '&gt;',
      '34': '&quot;',
      '160': '&nbsp;',
      '162': '&cent;',
      '163': '&pound;',
      '164': '&curren;',
      '169': '&copy;',
      '174': '&reg;'
  };
  
  
  internals.safeCharCodes = (function () {
  
      var safe = {};
  
      for (var i = 32; i < 123; ++i) {
  
          if ((i >= 97) ||                    // a-z
              (i >= 65 && i <= 90) ||         // A-Z
              (i >= 48 && i <= 57) ||         // 0-9
              i === 32 ||                     // space
              i === 46 ||                     // .
              i === 44 ||                     // ,
              i === 45 ||                     // -
              i === 58 ||                     // :
              i === 95) {                     // _
  
              safe[i] = null;
          }
      }
  
      return safe;
  }());