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add escapeHtml
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1 changed files with 73 additions and 0 deletions
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@ -12,6 +12,78 @@
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*/
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/**
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* Escapes special characters in the given string of text and replaces newline characters with <br>.
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*
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* @param {string} string The string to escape.
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* @returns {string} The escaped string.
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*/
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function escapeHtml(string) {
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/**
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* Regular expression to match HTML special characters: ["'&<>]
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* @type {RegExp}
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*/
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var matchHtmlRegExp = /["'&<>]/
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/**
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* Escapes special characters in the given string.
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* @param {string} str The string to escape.
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* @returns {string} The escaped string.
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*/
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function escapeString(str) {
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var escape
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var html = ''
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var index = 0
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var lastIndex = 0
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for (index = matchHtmlRegExp.exec(str).index; index < str.length; index++) {
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switch (str.charCodeAt(index)) {
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case 34: // "
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escape = '"'
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break
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case 38: // &
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escape = '&'
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break
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case 39: // '
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escape = '''
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break
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case 60: // <
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escape = '<'
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break
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case 62: // >
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escape = '>'
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break
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case 10: // Newline
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escape = '<br>'
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break
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default:
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continue
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}
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if (lastIndex !== index) {
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html += str.substring(lastIndex, index)
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}
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lastIndex = index + 1
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html += escape
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}
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return lastIndex !== index
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? html + str.substring(lastIndex, index)
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: html
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}
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var str = '' + string
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var match = matchHtmlRegExp.exec(str)
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if (!match) {
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return str
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}
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return escapeString(str)
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}
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/**
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* Checks if a string is a valid JSON.
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* @param {string} str - The string to be checked.
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@ -226,5 +298,6 @@ module.exports = {
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IsInArray,
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getRandomInt,
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capitalizeFirstLetter,
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escapeHtml,
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turntomins
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};
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