var str = "<example>{{var=b|arg=args|link=c|testing=test1}}</example>";
How do I use regex to match args? In other words, I want to match the thing that follows arg= but before the next |.
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Rebeca, what you already tried?davidbuzatto– davidbuzatto2012-09-03 22:09:49 +00:00Commented Sep 3, 2012 at 22:09
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I hope you're not trying to perform any sort of XML or HTML parsing with regex.zzzzBov– zzzzBov2012-09-03 22:10:00 +00:00Commented Sep 3, 2012 at 22:10
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2 Answers
var match = str.match(/arg=([^|]+)/);
Then check if match[1] exists. And if it does - then it contains what you want
UPD:
as @nnnnnn pointed out - instead of checking for match[1] presence it would be more correct to check if match is not null like:
if (match) {
// match[1] here contains required info
}
1 Comment
nnnnnn
Note that checking
match[1] will give an error if there was no match: you have to test if match is null...Something like this:
var args = str.match(/arg=([^|]*)/);
if (args != null) {
// args[1] contains the match...
}
That is, find arg= and then capture the zero or more following characters that aren't |.