Regular expressions trouble

[Vormav]

I never have been good with regular expressions, perl-compatible or otherwise. And I've been looking at this for awhile. So I'll just tell exactly what I need, and see if anyone can write the expression for it.

Basically, I need to make a replacement on all image tags within some [size] bb coding tags. So what this would call for is searching for all occurrences of [size= followed by any number of integer values, followed by ] followed by any number of anything that does not match [/size] followed by <img followed by any number of anything that does not match
[/size] followed by [/size]
That's what to search for. In the replacement, I need to put all of this together, only add some text after every occurrence of <img within the [size] tags.

What I'm really trying to do is make it so that, like text, you can resize images on the forum with the use of the [size] tags. I already have the javascript figured out for it, but I need to insert an onLoad command into every image tag within the [size] tags. For quite some time now, I thought I had it working perfectly. But just today, I found out that it starts to screw up when you have multiple sets of image tags running around in your posts.

Anyway, I hope someone else can figure this one out, because I sure can't. X_x
Thanks

 

[sleipnir214]

How about you give an example of the original text, and an example of what you want it to look like afterward? Want the best answers? Ask the best questions:

http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!

 

[Vormav]

Sure thing.

-----

Regular text
This is some large text.
<img src=&quot;image1.gif&quot;>
<img src=&quot;image2.gif&quot;>
More text

Random text
<img src=&quot;image3.gif&quot;>

<img src=&quot;image4.gif&quot;>
Text


-----
Should become:
-----

Regular text.
This is some large text.
<img onLoad=&quot;loadcomplete(this, '5');&quot; src=&quot;image1.gif&quot;>
<img onLoad=&quot;loadcomplete(this, '5');&quot; src=&quot;image2.gif&quot;>
More text

Random text
<img src=&quot;image3.gif&quot;>

<img onLoad=&quot;loadcomplete(this, '2');&quot; src=&quot;image4.gif&quot;>
Text


-----

 

[sleipnir214]

Although you can probably do it with a single regular expression, don't make yourself crazy.

I recommend that you write some kind of stateful text modifier. Read the file in a line at a time. Whenever your code sees &quot;\[size=\d+\]&quot;, it increments a counter. Whenever it sees &quot;\[/size\]&quot;, it decrements the counter.

The code then uses a second regular expression in a replace function to insert the new text if and only if the counter is greater than zero. Want the best answers? Ask the best questions:

http://www.catb.org/~esr/faqs/smart-questions.html

TANSTAAFL!

 

[Vormav]

The only problem I can see with that is that some lines could possibly contain multiple instances of the [size] tag. Or, perhaps it would start with some stuff that isn't supposed to be resized, and end on some that is to be resized. Or maybe I just don't fully understand what you're suggesting. :-/