php Regex file path | second matching after specific character

Question

I trying to extract file patches, without disk letter, that are inside text. Like from AvastSecureBrowserElevationService; C:\Program Files (x86)\AVAST Software\Browser\Application\elevation_service.exe [X] extract :\Program Files (x86)\AVAST Software\Browser\Application\elevation_service.exe.

My actual regex look like this, but it will stop on any space, which can contains file names.

(?<=:\\)([^ ]*)

The soulution that I figure out is, that I can match first space character after dot, because there is very little chance that there will be some directory name with space after dot, and I will always do fast manual check. But I do not know how to write this in regex

@anubhava But after this dots are not any space character and how I wrote, there is always space for fast manual recheck. I remove it for better understand — Marek
– Marek, Commented Jun 12, 2019 at 18:21
@anubhava it looks that it will work, write it as answer so I will can flag it as right answer — Marek
– Marek, Commented Jun 12, 2019 at 18:38

anubhava · Accepted Answer · 2019-06-12 18:48:55Z

2

You may use this regex for this purpose:

(?<=[a-zA-Z]):[^.]+\.\S+

RegEx Demo

RegEx Details:

(?<=[a-zA-Z]): Lookbehind to assert we have a English letter before :
:: Match literal :
[^.]+: Match 1+ non-dot characters
\.: Match literal .
\S+: Match 1+ non-whitespace characters

answered Jun 12, 2019 at 18:48

anubhava

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Emma Marcier · Accepted Answer · 2019-06-12 18:50:26Z

1

Here we would consume our entire string, as we collect what we wish to output, and we would preg_replace:

.+C(:\\.+\..+?)\s.+

Test

$re = '/.+C(:\\.+\..+?)\s.+/m';
$str = 'AvastSecureBrowserElevationService; C:\\Program Files (x86)\\AVAST Software\\Browser\\Application\\elevation_service.exe [X]';
$subst = '$1';

$result = preg_replace($re, $subst, $str);

echo $result;

Demo

edited Jun 12, 2019 at 18:50

answered Jun 12, 2019 at 18:33

Emma Marcier

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1 Comment

Marek Over a year ago

The files can have all sorts of ending like .dll, .php etc and also there can be drivers letter like D, F etc. The @anubhava soulution looks that it will work fine.

Emma Marcier · Accepted Answer · 2019-06-13 03:48:33Z

0

You can use the following regex:

[A-Z]\K:.+\.\w+

It will match any capital letter followed by :, then any character string ending wit ., followed by at least one word character.

\K removes from the match what comes before it.

Demo

edited Jun 13, 2019 at 3:48

Emma Marcier

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answered Jun 12, 2019 at 18:56

Junitar

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