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It seems that despite the length of my post I still managed to leave out some pertinent information. Sorry! I use untaint_path() to check several filenames not just $^X. It just happens that this is the first test that encountered a weird path. So the question still stands even if $^X is safe.

On that topic, I am using the value of $^X in a qx// call. On Linux at least, if I don't untaint it, I get a nastygram about "insecure dependency." Should perl be a little smarter here?

As for the regexps themselves, I am embarrassed to say I just copied them from existing code. Now I will use the ones from File::Basename as cdarke suggested.

Thank you for your help.

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In reply to Re^2: One true regexp for untainting windows filenames? by jaldhar
in thread One true regexp for untainting windows filenames? by jaldhar

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    [1nickt]: Just trying to adjust to a new culture. Better doc than I am used to , but quite a bit more Agiley meta-bullshit; at least half a dozen meetings a week, strict "sprint" schedule etc. I'll adjust. And I hope to just switch off after the "scrum" each day at
    [1nickt]: ... the end of the afternoon. marto How are you, snowed in? Mum and Dad expecting snow today in Surrey. (Have 5" on the ground here in NJ. And my son's high school in SOCal closed until after Xmas due to fires.)
    [Corion]: 1nickt: In a sense the meta-bullshit might even be beneficial to you as you get to hear the cow-orkers talk (or not talk) about the issues you perceive. I think Agile is mostly about the meta ;)
    [Corion]: 1nickt: On Sunday maybe 10cm of snow fell, and the airport closed, and the trains stopped running etc :) It always comes as a surprise that snow falls here during the winter...
    [marto]: 1nickt, no snow, just some ice on the roads and the usual idiocy associated with humans and driving in less than ideal conditions

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