AlphaP

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Data Structure Primitives

Predicates

AlNumP

ASCIIP

AlphaP achar
Alpha? achar


outputs true if the input is a character in the subset of alphabetic characters.

Examples:

alpha? "a ;true ;-) alpha? "A ;true ;-) alpha? "1 ;false ;-) alpha? 1 ;false ;-) alpha? "ü ;true ;-) alpha? "! ;false ;-)

AlNumP

ASCIIP