CODEWITHSUNDEEP
javaregex
n00ki3
n00ki3

Reputation: 14849

How to write regex capture any HREF ending with a certain parameter?

I have this HTML:

  <ul><li><a href="/web3/showProfile.do;jsessionid=812E1C87A4FB4184650C551F27ADADAB.6-1?clientId=ZGVfX05FWFQ-&amp;cid=6-1&amp;activity=userdata&amp;levelFirstItem=0">Zugangsdaten</a></li><li><a href="/web3/setBookingTemplate.do;jsessionid=812E1C87A4FB4184650C551F27ADADAB.6-1?clientId=ZGVfX05FWFQ-&amp;cid=6-1&amp;activity=template&amp;levelFirstItem=1">Buchungsvorlagen</a></li><li><a href="/web3/showProfile.do;jsessionid=812E1C87A4FB4184650C551F27ADADAB.6-1?clientId=ZGVfX05FWFQ-&amp;cid=6-1&amp;activity=showFavorites&amp;levelFirstItem=2">Hotelfavoriten</a></li><li><a href="/web3/showProfile.do;jsessionid=812E1C87A4FB4184650C551F27ADADAB.6-1?clientId=ZGVfX05FWFQ-&amp;cid=6-1&amp;activity=showLightHistory&amp;levelFirstItem=3">Buchungshistorie</a></li><li><a href="/web3/showProfile.do;jsessionid=812E1C87A4FB4184650C551F27ADADAB.6-1?clientId=ZGVfX05FWFQ-&amp;cid=6-1&amp;activity=showHotelRating&amp;levelFirstItem=4">Hotelbewertung</a></li></ul>

How can I extract any HREF ending in levelFirstItem=2? Example:

/web3/showProfile.do;jsessionid=812E1C87A4FB4184650C551F27ADADAB.6-1?clientId=ZGVfX05FWFQ-&amp;cid=6-1&amp;activity=showFavorites&amp;levelFirstItem=2

Upvotes: 0

Views: 249

Answers (4)

mveerman
mveerman

Reputation: 40877

or possibly /href="(.*?)"/ assuming the regexp engine you're using negates greedy with ?.

Upvotes: 0

Gavin Miller
Gavin Miller

Reputation: 43815

This will capture everything within the quotes for only levelFirstItem=2:

/href="([^"]*levelFirstItem=2)"/

Upvotes: 3

Draemon
Draemon

Reputation: 34711

/href="([^"]*)"/

and in Java:

Pattern p = Pattern.compile("href=\"([^\"]*)\"");
Matcher m = p.matcher(line);
if(m.matches()) {
    String href = m.group(1);
}

Upvotes: 0

cgyDeveloper
cgyDeveloper

Reputation: 1911

In general, it's better to find an HTML library that will allow you to grab information from HTML. Using regular expressions will get very messy quickly.

What language are you using? I'm sure people here can direct you to a good HTML parsing library for any popular language.

Upvotes: 3

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