Handbook
Glossary
Letter? ( ch -- ? )
Vocabulary
ascii
Inputs
ch
a character
Outputs
?
a
boolean
Word description
Tests for an ASCII alphabet character, both upper and lower case.
Definition
USING:
combinators.short-circuit
;
IN:
ascii
:
Letter?
( ch -- ? )
{
[
letter?
]
[
LETTER?
]
}
1||
;
inline