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| author | Arman Shah <[email protected]> | 2018-02-19 23:50:04 -0800 |
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| committer | Arman Shah <[email protected]> | 2018-02-19 23:50:04 -0800 |
| commit | ae34dcfd3823a609ba7182f2d6eda593be876f7d (patch) | |
| tree | b9d7f2884c4999349418cbdc4f9ab46d113e0afd /node_modules/hoek/lib/escape.js | |
| parent | Initial commit (diff) | |
| download | launcher-ae34dcfd3823a609ba7182f2d6eda593be876f7d.tar.xz launcher-ae34dcfd3823a609ba7182f2d6eda593be876f7d.zip | |
add base files
Diffstat (limited to 'node_modules/hoek/lib/escape.js')
| -rwxr-xr-x | node_modules/hoek/lib/escape.js | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/node_modules/hoek/lib/escape.js b/node_modules/hoek/lib/escape.js new file mode 100755 index 0000000..28d90ba --- /dev/null +++ b/node_modules/hoek/lib/escape.js @@ -0,0 +1,168 @@ +'use strict'; + +// Declare internals + +const internals = {}; + + +exports.escapeJavaScript = function (input) { + + if (!input) { + return ''; + } + + let escaped = ''; + + for (let i = 0; i < input.length; ++i) { + + const 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 ''; + } + + let escaped = ''; + + for (let i = 0; i < input.length; ++i) { + + const charCode = input.charCodeAt(i); + + if (internals.isSafe(charCode)) { + escaped += input[i]; + } + else { + escaped += internals.escapeHtmlChar(charCode); + } + } + + return escaped; +}; + + +exports.escapeJson = function (input) { + + if (!input) { + return ''; + } + + const lessThan = 0x3C; + const greaterThan = 0x3E; + const andSymbol = 0x26; + const lineSeperator = 0x2028; + + // replace method + let charCode; + return input.replace(/[<>&\u2028\u2029]/g, (match) => { + + charCode = match.charCodeAt(0); + + if (charCode === lessThan) { + return '\\u003c'; + } + else if (charCode === greaterThan) { + return '\\u003e'; + } + else if (charCode === andSymbol) { + return '\\u0026'; + } + else if (charCode === lineSeperator) { + return '\\u2028'; + } + return '\\u2029'; + }); +}; + + +internals.escapeJavaScriptChar = function (charCode) { + + if (charCode >= 256) { + return '\\u' + internals.padLeft('' + charCode, 4); + } + + const hexValue = new Buffer(String.fromCharCode(charCode), 'ascii').toString('hex'); + return '\\x' + internals.padLeft(hexValue, 2); +}; + + +internals.escapeHtmlChar = function (charCode) { + + const namedEscape = internals.namedHtml[charCode]; + if (typeof namedEscape !== 'undefined') { + return namedEscape; + } + + if (charCode >= 256) { + return '&#' + charCode + ';'; + } + + const 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 () { + + const safe = {}; + + for (let 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; +}()); |