Just to clarify, there are no line-endings in this file (at least not in ASCII).

I do think I found the problem, though. I didn't realize that perl was trying to find the end of line. Searching for that, I found "slurp mode", -0777 (undefined record separator). And using a few other recommendations, I also reduced the s///sgx options to just s///g, since my example didn't seem to need s and x. It seems to allow the file to be processed in a matter of seconds, and compares properly to other files processed "manually" with hex editors.

perl -0777 -pe "s/\x00\x42\x00\x11/\x00\x42\x00\xf0/g" input > output

I'm waiting on the availability of another file to test another hex string against, but it won't be available until Oct 1. I think the issue is resolved, but I'd like to wait until then to be sure, unless anyone else has any recommendations or considerations I should be aware of.

In reply to Re^2: Slow find/replace hex in Perl win32 by rickyboone
in thread Slow find/replace hex in Perl win32 by rickyboone

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