Re: [dev] [sbase] [PATCH-UPDATE] Rewrite tr(1) in a sane way

From: <random832_AT_fastmail.us>
Date: Sat, 10 Jan 2015 18:56:45 -0500

On Sat, Jan 10, 2015, at 16:47, Markus Wichmann wrote:
> You wanted to be Unicode compatible, right? Because in that case I
> expect [:alpha:] to be the class of all characters in General Category L
> (that is, Lu, Ll, Lt, Lm, or Lo). That includes a few more characters
> than just A-Z and a-z. And I don't see you add any other character to
> that class later.

Note that translating between [:upper:] and [:lower:] requires using the
toupper and tolower mapping, rather than just dumping the character
classes (since otherwise you'll run into there being something like ß
that is in [:lower:] and has no counterpart in [:upper:], or they're in
a different order)
Received on Sun Jan 11 2015 - 00:56:45 CET