Find text when
is not in front of

Question

I need to find out the content before <img> tag in my HTML if it does not have <br/> before it. And if <img> jas some other content before it then I need to add <br/> before it.

don't use regex in this case. use a dom parser. god knows there are plenty — gion_13, Jul 03 '12 at 20:15
[Do not parse HTML with regex](http://stackoverflow.com/a/1732454/451590). Use a full HTML parser instead. — David B, Jul 03 '12 at 20:15
Also, what language are you using? (Does it have negative backreferences in its RE language variant?) — Donal Fellows, Jul 03 '12 at 20:16
Here is all you EVER need to know about HTML and regex: http://stackoverflow.com/questions/1732348/regex-match-open-tags-except-xhtml-self-contained-tags — Kasapo, Jul 03 '12 at 20:16
Xpath route, if taken, would probably be along the lines of `//img[not(preceding-sibling::br)]` — Wrikken, Jul 03 '12 at 20:17
well I would have prefer to not need to use things like that because I only use a few HTML in my software...but I guess I don't have long range of choices — castors33, Jul 03 '12 at 20:34
@castors33 A small script would solve your problem. I have mentioned below. Just have a look.You just need to include the JQuery file.Hope things work correctly. — Shiv Kumar Ganesh, Jul 03 '12 at 20:41

Shiv Kumar Ganesh · Accepted Answer · 2012-07-03T21:03:37.863

Consider this html code :- (This solution uses JQuery!)

<h1><img src="#"/><h1>
<br/><img src="#"/>

Now in one case you need to get the element before <img>

  $(document).ready(
function(){
 $('img').each(function(){
  if($(this).prev()==$('br'))
   {
      $(this).prev().replaceWith('');
   }
   if($(this).prev()!=$('br)')
        {
          $(this).prev().replaceWith('br');
        }
});

});

Guess this would solve your problem.

score 1 · Answer 2 · answered Jul 03 '12 at 22:34

A slightly simpler and faster version

$(document).ready(function(){

    $('img').each(function(){
         var prev = $(this).prev();
         if (prev[0] && prev[0].nodeName.toUpperCase() !== 'BR') {
            prev.after('<br>')
         }
   })

})

Find text when is not in front of

2 Answers2

Find text when
is not in front of