[REBOL] Re: idioms to reduce logic clutter ?
From: carl::cybercraft::co::nz at: 12-Oct-2002 23:32
Hi Jason,
A quickish answer... Three REBOL words you may not know off that may
help...
>> ? any
USAGE:
ANY block
DESCRIPTION:
Shortcut OR. Evaluates and returns the first value that is not
FALSE or NONE.
ANY is a native value.
ARGUMENTS:
block -- Block of expressions (Type: block)
>> ? all
USAGE:
ALL block
DESCRIPTION:
Shortcut AND. Evaluates and returns at the first FALSE or NONE.
ALL is a native value.
ARGUMENTS:
block -- Block of expressions (Type: block)
>> ? switch
USAGE:
SWITCH value cases /default case
DESCRIPTION:
Selects a choice and evaluates what follows it.
SWITCH is a function value.
ARGUMENTS:
value -- Value to search for. (Type: any)
cases -- Block of cases to search. (Type: block)
REFINEMENTS:
/default
case -- Default case if no others are found. (Type: any)
(SPECIAL ATTRIBUTES)
throw
--
Carl Read
