validate the syntax of a perl-compatible regular expression

perl -we 'my $regex = eval {qr/.*/}; die "$@" if $@;'
Place the regular expression you want to validate between the forward slashes in the eval block.
Sample Output
$ perl -we 'my $regex = eval {qr/*/}; die "$@" if $@;'
Quantifier follows nothing in regex; marked by <-- HERE in m/* <-- HERE / at -e line 1.

By: tlacuache
2009-10-13 21:50:47

What Others Think

might want to mention that you would need to put your regular expression between the "/"'s of the qr// I would also argue that if you wanted more valuable output to add the -w flag along with the -e flag: -we That turns on helpful warnings which give you more specifics about what went wrong with your regex
linuxrawkstar · 632 weeks and 6 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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