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#78677
RegEx error
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(Tue, 03 Jun 2025 04:01:04 GMT)
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danil <at> archlinux ~/minecraft_server> ls purpur-*.jar | grep -i "[^a-z\-\.]"
purpur-2416.jar
danil <at> archlinux ~/minecraft_server> ls purpur-*.jar | grep -i "[^a-z\.\-]"
purpur-2416.jar
[image: изобÑажение.png]
Hello, encountered a RegEx error. For some reason grep doesn't recognize
the â-â in \-\. but if we do \.\- it will work. Why is that?
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(Wed, 04 Jun 2025 02:52:02 GMT)
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Message #8 received at 78677 <at> debbugs.gnu.org (full text, mbox):
DANIL10RUS <danilleontevkek2akk <at> gmail.com> writes:
> danil <at> archlinux ~/minecraft_server> ls purpur-*.jar | grep -i "[^a-z\-\.]"
> purpur-2416.jar
> danil <at> archlinux ~/minecraft_server> ls purpur-*.jar | grep -i "[^a-z\.\-]"
> purpur-2416.jar
> Hello, encountered a RegEx error. For some reason grep doesn't recognize
> the â-â in \-\. but if we do \.\- it will work. Why is that?
Remember that within [...], backslash is not special but - is. So in
[^a-z\-\.]
The class specifies (1) the range from a to z, (2) the range from / to
/, (3) the character .. Actually, it specifies the *complement* of that
set, so grep will give you any lines that contain a character that is
not in that set.
What is it you are trying to accomplish?
Dale
This bug report was last modified 2 days ago.
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