Regular Expression Issue

Rex,

Thanks for fixing the regular-expression syntax for the DIR command. Almost everything is working, including the uppercase expressions \D, \W, etc..

However, I don't understand the following with the POSIX character classes, which behave differently when surrounded by double brackets or single brackets. (I used an alias to save typing.)

TCC(30.00.21): C:\temp\sandbox>zz alpha
--------------------
dirx ::[[:alpha:]]:
--------------------
A
a b
b
--------------------
dirx...

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