Hi I am trying to find RegEx which helps me to replace words in HTML. Problem occurs if the word i am trying to replace is in HTML tag as well.
Example:<img class="TEST">asd TEST asd dsa asd </img>
and i need to get the second "TEST" only.
RegEx i am looking for should look like >[^<]*TEST, but this regex takes chars before the word TEST as well. Is it possible to select only word TEST ? but imagine other combinations as well (i dont think " TEST " is a good solution as soon as text could contain another chars as well)
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3see stackoverflow.com/questions/1732348/…Bala R– Bala R2011-04-21 13:35:17 +00:00Commented Apr 21, 2011 at 13:35
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This is a job for a parser. Do a search for: "java html parser" and you will be on your way.ridgerunner– ridgerunner2011-04-21 15:33:20 +00:00Commented Apr 21, 2011 at 15:33
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3 Answers
First of all, regex is not good option for html parsing.. There are lots of enhanced html parsers that you can use..
But if you insist to use regex , here is the regex ;
(?<=>.*)TEST(?=.*<)
for java,
(?<=>.{0,100000})TEST(?=.{0,100000}<)
for more information why we can not use * or + with lookbehind regex in Java , Regex look-behind without obvious maximum length in Java
2 Comments
rhorvath
i am not parsing whole html, for that i use Jericho. I just wanted easy way of replacing some words. I cant make your regex working ...testing here myregexp.com
rhorvath
I like your solution, but not working for code like this:
<p> [newLine here] TEST [newLine here] </p>First of all, like has been said and will be said again, using regex for XML is usually a bad idea. But for really simple cases it can work, especially if you can live with sub-optimal results.
So, just put the test in a group and replace only the group
Something like
Pattern replacePattern = Pattern.compile(">[^<]*(TEST)");
Matcher matcher = replacePattern.matcher(theString);
String result = theString.substr(1,matcher.start(1)) + replacement + theString.substr(matcher.end(1));
Disclaimer: Not tested, might have some off-by-ones. But the concept should be clear.
Comments
How about if "TEST" is inside another tag than , like say inside the body tag, or for that matter inside the html tag?
1 Comment
rhorvath
ahh maybe i said it wrong way. i mean between '<' and '>'. it is okey if word is inside tag <> here </>, not ok if its < here>.