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added sanitize and linkify functions. Moved some js to lib/

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This commit is contained in:
Dmitriy Zaporozhets 2013-03-19 15:54:58 +02:00
parent 2465a4fdb2
commit 4403f71f45
5 changed files with 9 additions and 2 deletions
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70
app/assets/javascripts/lib/utf8_encode.js Normal file
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@ -0,0 +1,70 @@
function utf8_encode (argString) {
// http://kevin.vanzonneveld.net
// + original by: Webtoolkit.info (http://www.webtoolkit.info/)
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: sowberry
// + tweaked by: Jack
// + bugfixed by: Onno Marsman
// + improved by: Yves Sucaet
// + bugfixed by: Onno Marsman
// + bugfixed by: Ulrich
// + bugfixed by: Rafal Kukawski
// + improved by: kirilloid
// + bugfixed by: kirilloid
// * example 1: utf8_encode('Kevin van Zonneveld');
// * returns 1: 'Kevin van Zonneveld'
if (argString === null || typeof argString === "undefined") {
return "";
}
var string = (argString + ''); // .replace(/\r\n/g, "\n").replace(/\r/g, "\n");
var utftext = '',
start, end, stringl = 0;
start = end = 0;
stringl = string.length;
for (var n = 0; n < stringl; n++) {
var c1 = string.charCodeAt(n);
var enc = null;
if (c1 < 128) {
end++;
} else if (c1 > 127 && c1 < 2048) {
enc = String.fromCharCode(
(c1 >> 6) | 192,
( c1 & 63) | 128
);
} else if (c1 & 0xF800 != 0xD800) {
enc = String.fromCharCode(
(c1 >> 12) | 224,
((c1 >> 6) & 63) | 128,
( c1 & 63) | 128
);
} else { // surrogate pairs
if (c1 & 0xFC00 != 0xD800) { throw new RangeError("Unmatched trail surrogate at " + n); }
var c2 = string.charCodeAt(++n);
if (c2 & 0xFC00 != 0xDC00) { throw new RangeError("Unmatched lead surrogate at " + (n-1)); }
c1 = ((c1 & 0x3FF) << 10) + (c2 & 0x3FF) + 0x10000;
enc = String.fromCharCode(
(c1 >> 18) | 240,
((c1 >> 12) & 63) | 128,
((c1 >> 6) & 63) | 128,
( c1 & 63) | 128
);
}
if (enc !== null) {
if (end > start) {
utftext += string.slice(start, end);
}
utftext += enc;
start = end = n + 1;
}
}
if (end > start) {
utftext += string.slice(start, stringl);
}
return utftext;
}