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Re: How to check whether a character (or one-character string) is a lett
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From: |
Eli Zaretskii |
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Subject: |
Re: How to check whether a character (or one-character string) is a letter? |
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Date: |
Sat, 04 Oct 2014 10:29:38 +0300 |
> From: Marcin Borkowski <mbork@wmi.amu.edu.pl>
> Date: Sat, 04 Oct 2014 02:29:24 +0200
>
> Assume that I have a character (taken from some string, which in turn is
> copied from the buffer - so it need not be ASCII). What is the best way
> to check whether it is a letter within ASCII range?
One way is this:
(= 1 (string-bytes (char-to-string ch)))
where 'ch' is the character you want to test. Note that this will
pass any 7-bit ASCII character, including control characters, digits,
and punctuation, not just "letters".