Segmentation fault on compressing some css files

[PavloKovalov]

I get 'segmentation fault' when compressing some css files.
Here is my test script:

require_once './library/CssMin.php';

$cssMin = new CssMin();

$testCss = file_get_contents('./themes/cureline/css/reset.css');
$compressed = $cssMin->run($testCss);

echo $compressed;

output:

newtoaster.dev/ (develop) $ php test.php 
Segmentation fault

phpStorm with xDebug attached process to line 93 and then fails
i'll update if got more details

UPD: sorry, this is css that breaks https://gist.github.com/PavloKovalov/8582652

[PavloKovalov]

in fact the original YUI Compressor library also breaks on this file

[futtta]

This is probably another stack overflow on PCRE due to recursion in a regex in a preg_replace Pavlo (cfr. #11). If you can identify the line that breaks you can then try to rewrite the regex so PCRE uses less stack.

[PavloKovalov]

My colleague found workaround for this issue. See #13

[futtta]

Great! Did you guys run the tests that included in cssmin/tests/ ? Same results?

[tubalmartin]

I'll look into this ASAP and report soon.

[tubalmartin]

I've inspected the CSS @PavloKovalov linked. It turns out it's invalid/broken CSS and broken CSS will not compress correctly most of the times. Take a look at line 1088. There you can see clearly the url() function is not closed properly and that's why Apache throws a Segmentation Fault error. Close the url() function properly and it compresses correctly.

Change this:

endColorstr='url(data:image/svg+xml;base64,P'

to:

endColorstr='url(data:image/svg+xml;base64,P)'

I'm closing this issue right away.