E r g e b n i s / R e s u l t
The routine returns true if c is a particular representation of an alphanumeric character.
B e s c h r e i b u n g / D e s c r i p t i o n
OISALNUM returns a TRUE if either
OISALPHA or
OISDIGIT is true for c, that is, if c is within the ranges A – Z, a – z, or 0 – 9.
The routine returns FALSE if c does not satisfy the test condition.
S y n t a x
Code:
value = call ('OISALNUM' , c) P a r a m e t e r
c - Character to test
R e t u r n s
TRUE, if the character is an alphanumeric character, FALSE otherwise
B e i s p i e l / E x a m p l e
Code:
attach 'CTYPE'
put call ('OISALNUM' , 'A') ! returns true, as it's an alphanumeric character
put call ('OISALNUM' , '?') ! returns false, as it's not an alphanumeric character
detach 'CTYPE'