Regexp Help for \W less [.-_]

[Trans]

Regexp help. How do I write "all non-alphanumeric characets except .
(period) - (dash) and _ (underscore)"

Thanks,
T.

 

[David A. Black]

Hi --

Regexp help. How do I write "all non-alphanumeric characets except .
(period) - (dash) and _ (underscore)"

Just negate the things you don't want (with _ being subsumed in \w):

/[^\w.-]/


David

 

[Ara.T.Howard]

Regexp help. How do I write "all non-alphanumeric characets except .
(period) - (dash) and _ (underscore)"

re = %r/[^A-Za-z0-9._-]/

or depending on usage, you may want

re = %r/^\s*[^A-Za-z0-9._-]\s*$/

or something close

cheers.

-a
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[Trans]

Thanks Ara. Worked.

 

[David A. Black]

Hi --

Regexp help. How do I write "all non-alphanumeric characets except .
(period) - (dash) and _ (underscore)"

re = %r/[^A-Za-z0-9._-]/

or depending on usage, you may want

re = %r/^\s*[^A-Za-z0-9._-]\s*$/

or something close

You get all that A-Za-z0-9_ stuff for the price of admission with \w



David

 

[Trans]

Just negate the things you don't want (with _ being subsumed in \w):

/[^\w.-]/

Even better.

(I thought I tried that w/o success, but on reflection I may have
mistakenly used \W instead of \w.)

Thanks for the help,
T.