I am using this regex on css file to find all font-face fonts and to add missing full path to the font string.
if(preg_match_all("/(url\('(.*?)'\))/s", $readcssfile, $fontstrings)){
$fontstrings[1] = str_replace("('", "('newpath/", $fontstrings[1]);
print_r($fontstrings[1]);
}
this is the return .
Array
(
[0] => url('newpath/../fonts/glyphicons-halflings-regular.eot')
[1] => url('newpath/../fonts/glyphicons-halflings-regular.eot?#iefix')
[2] => url('newpath/../fonts/glyphicons-halflings-regular.woff')
[3] => url('newpath/../fonts/glyphicons-halflings-regular.ttf')
[4] => url('newpath/../fonts/glyphicons-halflings-regular.svg#glyphicons_halflingsregular')
[5] => url('newpath/PTN77F-webfont.eot')
[6] => url('newpath/PTN77F-webfont.eot?#iefix')
[7] => url('newpath/PTN77F-webfont.woff')
[8] => url('newpath/PTN77F-webfont.ttf')
[9] => url('newpath/PTN77F-webfont.svg#PTSansNarrowBold')
)
What I am actually looking for are those that have no relative path
url('PTN77F ...
But as you can see I found all fonts. I must be very specific so I would not make any mistakes , I need to match all
eot|#iefix|woff|ttf|svg,
that do not have relative paths like , ../ or ..anything
and change their path to new path.
The thing is as soon as I add something like this in regex
preg_match_all("/(url\('(.*?).eot'\))/s", $readcssfile, $fontstrings)
I end up with array that has complete stylesheet in it.
I cannot search by actual font name since I will never know what it will be.
So how to I match only the ones that dont have relative path and how to find fonts with specific extension?
Any help is appreciated.
First assert that there is no relative path by making sure no ../ exists on the line:
(?!.*\.\.\/)
Then modify the above expression to grab the actual URL into a capture group:
^(?!.*\.\.\/)url\('?(.*?)'?\)$
And then for each match there will be an array element [1] with the captured URL and [0] will be the full match.
Note: this should be done so that ^ / $ match per line, so ensure the m flag is not set.
It was much easier than I thought by referencing this here
https://stackoverflow.com/a/406408/594423
I end up matching only the ones that have nothing before ('
and replacing them
preg_replace("/(url\('(?!\.)(?!\/))/s","url('newpath/", $readcssfile);
it is kinda what tenub referenced in the fist line