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regexre2

Regex to capture 2 sets of 8 non capital letters, sandwiched by dots

I'm hoping to capture some rando weirdness that is being dynamically generated and stuffed at the end of my temporary ASP files. The weirdness is a pattern of two sets of eight characters (appear to be all non capital letters) sandwiched by dots.

I am trying to find the best regex to capture both sets of 8 non capital letter characters, sandwiched by dots.

Here is my current regex:

\.([^A-Z]{8})\.

My current regex works ok to capture the first set, but doesn't capture the second set. I believe it's because the dot is getting eaten after the first match and so there's no dot to trigger the second set from matching.

How can I improve this regex so it captures both sets of dynamic weirdness? Would greatly appreciate any help folks can provide!

Data set to match:

String Expected match
\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\svc_pr30\701d8ff1\10cc0653\App_Web_defaultwsdlhelpgenerator.aspx.cdcab7d2.3sl-aaqs.dll cdcab7d2.3sl-aaqs
\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\svc_pr21\a201b637\20c58f14\App_Web_defaultwsdlhelpgenerator.aspx.cdcab7d2.xqj2w-wv.dll cdcab7d2.xqj2w-wv
\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\web_releaseapi\638ee986\2f0d9ef4\App_Web_defaultwsdlhelpgenerator.aspx.cdcab7d2.-qsn3y9x.dll cdcab7d2.-qsn3y9x
\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\web_releaseapi\638ee986\2f0d9ef4\App_Web_defaultwsdlhelpgenerator.aspx.cdcab7d2.pyn4enbe.dll cdcab7d2.pyn4enbe
\Windows\Microsoft.NET\Framework64\v4.0.30319\Temporary ASP.NET Files\cmuserservice_windowsauth\a10d69fc\d9424d7d\App_Web_defaultwsdlhelpgenerator.aspx.cdcab7d2.thhlx9xi.dll cdcab7d2.thhlx9xi
Solution

  • You can use

    \.([^A-Z.]{8}\.[^A-Z.]{8})\.

    See the regex demo. Details:

    • \. - a dot
    • ([^A-Z.]{8}\.[^A-Z.]{8}) - Group 1: eight chars other than a dot and uppercase ASCII letters, a . and then again eight chars other than a dot and uppercase ASCII letters
    • \. - a dot.

    Group 1 values for each tested string will be:

    cdcab7d2.3sl-aaqs
cdcab7d2.xqj2w-wv
cdcab7d2.-qsn3y9x
cdcab7d2.pyn4enbe
cdcab7d2.thhlx9xi