editting css file...

[ToonMariner]

Hi peeps,

OK i have a series of statements in a css file like so
[code]
#nav li#navintroduction a
{
background: transparent url(../images/nav/red.gif) no-repeat 0 0;
}

#nav li#navproducts a
{
background: transparent url(../images/nav/lightblue.gif) no-repeat 0 0;
}

#nav li#navbargain_selection a
{
background: transparent url(../images/nav/orange.gif) no-repeat 0 0;
}

#nav li#navspecials a
{
background: transparent url(../images/nav/brown.gif) no-repeat 0 0;
}

#nav li#navcontact a
{
background: transparent url(../images/nav/purple.gif) no-repeat 0 0;
}
[/code]

WITH THE NEW LINES

What I need to do is alter the image name (just the first part) based on id of the li element.

This is what I am trying but no joy as yet (i think i am pretty close though ;))

[code]<?php
$str = "#nav li#navintroduction a
{
background: transparent url(../images/nav/red.gif) no-repeat 0 0;
}

#nav li#navproducts a
{
background: transparent url(../images/nav/lightblue.gif) no-repeat 0 0;
}

#nav li#navbargain_selection a
{
background: transparent url(../images/nav/orange.gif) no-repeat 0 0;
}

#nav li#navspecials a
{
background: transparent url(../images/nav/brown.gif) no-repeat 0 0;
}

#nav li#navcontact a
{
background: transparent url(../images/nav/purple.gif) no-repeat 0 0;
}";

$styles = array (
1 => 'red' ,
2 => 'lightblue' ,
3 => 'orange' ,
4 => 'brown' ,
5 => 'purple'
);
$newsty = 4;

$id = 'products';

$filestr = preg_replace('/li#nav' . $new . ' a(.*)\/nav\/(.*)\.gif/s','li#nav' . $new . ' a$1/nav/' . $styles[$newsty] . '.gif',$str);
?>[/code]

So basically I just want to change the initial part of the file name BUT I think preg_replace is greedy (is it?) so i am not getting anything lie what i expect.

Hopefully from the code you will be able to see what I am trying to do, and even more hopefully point me in teh right direction.

Cheers people.

[effigy]

What is[tt] $new[/tt]? Why are you using an associative array? I'm still confused at what your desired result is--can you show an example?

[ToonMariner]

Sorry. a typo shoudl be $id.

So the regex is...[code]
<?php
$filestr = preg_replace('/li#nav' . $id . ' a(.*)\/nav\/(.*)\.gif/s','li#nav' . $id . ' a$1/nav/' . $styles[$newsty] . '.gif',$str);
?>
[/code]

(this is going into a function so $id will chage)

so With[code]<?php
<?php
$str = "#nav li#navintroduction a
{
background: transparent url(../images/nav/red.gif) no-repeat 0 0;
}

#nav li#navproducts a
{
background: transparent url(../images/nav/lightblue.gif) no-repeat 0 0;
}

#nav li#navbargain_selection a
{
background: transparent url(../images/nav/orange.gif) no-repeat 0 0;
}

#nav li#navspecials a
{
background: transparent url(../images/nav/brown.gif) no-repeat 0 0;
}

#nav li#navcontact a
{
background: transparent url(../images/nav/purple.gif) no-repeat 0 0;
}";

$styles = array (
1 => 'red' ,
2 => 'lightblue' ,
3 => 'orange' ,
4 => 'brown' ,
5 => 'purple'
);
$newsty = 4;

$id = 'products';

$filestr = preg_replace('/li#nav' . $id . ' a(.*)\/nav\/(.*)\.gif/s','li#nav' . $id . ' a$1/nav/' . $styles[$newsty] . '.gif',$str);
?>[/code]

So with $id = "products" and $newsty = 4 I would like get

#nav li#navintroduction a
{
background: transparent url(../images/nav/red.gif) no-repeat 0 0;
}

#nav li#navproducts a
{
background: transparent url(../images/nav/[color=blue]brown[/color].gif) no-repeat 0 0;
}

#nav li#navbargain_selection a
{
background: transparent url(../images/nav/orange.gif) no-repeat 0 0;
}

#nav li#navspecials a
{
background: transparent url(../images/nav/brown.gif) no-repeat 0 0;
}

#nav li#navcontact a
{
background: transparent url(../images/nav/purple.gif) no-repeat 0 0;
}

[ToonMariner]

I think I need to do a negative lookahead, something like..[code]filestr = preg_replace('/li#nav' . $id . ' a(.*)\/nav\/(?!(\.gif))\.gif/s','li#nav' . $id . ' a$1/nav/' . $styles[$newsty] . '.gif',$str);[/code]

But how do I get that negative lookahead to include linebreaks?

[effigy]

[tt]preg_replace('%(li#nav' . $id . ' a.+?/nav/).+?(\.gif)%s', '$1' . $styles[$newsty] . '$2',$str)[/tt]

[ToonMariner]

Brilliant!!!!

Thank you VERY much.