[Haskell-beginners] Data.Char: isAlpha vs. isLetter

Brandon Allbery allbery.b at gmail.com
Mon Sep 10 21:31:26 CEST 2012

On Mon, Sep 10, 2012 at 3:09 PM, Stayvoid <stayvoid at gmail.com> wrote:

> What's the reason to have both isAlpha and isLetter?

Probably an alias for backward compatibility; isAlpha is C-style <ctype.h>
stuff, which was ASCII only, whereas isLetter is Unicode style.

brandon s allbery                                      allbery.b at gmail.com
wandering unix systems administrator (available)     (412) 475-9364 vm/sms
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