You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
34 lines
1.0 KiB
34 lines
1.0 KiB
4 weeks ago
|
var UNICODE = '\\\\[0-9a-f]{1,6}(\\r\\n|[ \\n\\r\\t\\f])?';
|
||
|
|
var ESCAPE = '(' + UNICODE + '|\\\\[^\\n\\r\\f0-9a-fA-F])';
|
||
|
|
var NONPRINTABLE = '\u0000\u0008\u000b\u000e-\u001f\u007f';
|
||
|
|
var SAFE_URL = new RegExp('^(' + ESCAPE + '|[^\"\'\\(\\)\\\\\\s' + NONPRINTABLE + '])*$', 'i');
|
||
|
|
|
||
|
|
module.exports = function(node) {
|
||
|
|
var value = node.value;
|
||
|
|
|
||
|
|
if (value.type !== 'String') {
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
var quote = value.value[0];
|
||
|
|
var url = value.value.substr(1, value.value.length - 2);
|
||
|
|
|
||
|
|
// convert `\\` to `/`
|
||
|
|
url = url.replace(/\\\\/g, '/');
|
||
|
|
|
||
|
|
// remove quotes when safe
|
||
|
|
// https://www.w3.org/TR/css-syntax-3/#url-unquoted-diagram
|
||
|
|
if (SAFE_URL.test(url)) {
|
||
|
|
node.value = {
|
||
|
|
type: 'Raw',
|
||
|
|
loc: node.value.loc,
|
||
|
|
value: url
|
||
|
|
};
|
||
|
|
} else {
|
||
|
|
// use double quotes if string has no double quotes
|
||
|
|
// otherwise use original quotes
|
||
|
|
// TODO: make better quote type selection
|
||
|
|
node.value.value = url.indexOf('"') === -1 ? '"' + url + '"' : quote + url + quote;
|
||
|
|
}
|
||
|
|
};
|