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Code Issues Releases Wiki Activity

Add escapeHTML function to Javascipt code

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This commit is contained in:
Alfred Egger 2020-12-16 21:13:40 +01:00
parent 68efa663b0
commit b01f542c91
1 changed files with 50 additions and 1 deletions
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51
js/devel/helpers.js
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@ -26,4 +26,53 @@ function toBool(str) {
return false;
}
return null;
}
}
function escapeHTML(string) {
var str = '' + string
var matchHtmlRegExp = /["'&<>]/
var match = matchHtmlRegExp.exec(str)
if (!match) {
return str
}
var escape
var html = ''
var index = 0
var lastIndex = 0
for (index = match.index; index < str.length; index++) {
switch (str.charCodeAt(index)) {
case 34: // "
escape = '&quot;'
break
case 38: // &
escape = '&amp;'
break
case 39: // '
escape = '&#39;'
break
case 60: // <
escape = '&lt;'
break
case 62: // >
escape = '&gt;'
break
default:
continue
}
if (lastIndex !== index) {
html += str.substring(lastIndex, index)
}
lastIndex = index + 1
html += escape
}
return lastIndex !== index
? html + str.substring(lastIndex, index)
: html
}