123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132 |
- // 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': '&',
- '60': '<',
- '62': '>',
- '34': '"',
- '160': ' ',
- '162': '¢',
- '163': '£',
- '164': '¤',
- '169': '©',
- '174': '®'
- };
- 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;
- }());
|