Rebol Programming/either

= USAGE: = EITHER condition true-block false-block

= DESCRIPTION: = If condition is TRUE, evaluates the first block, else evaluates the second.

EITHER is a native value. = ARGUMENTS =
 * condition -- (Type: any)
 * true-block -- (Type: block)
 * false-block -- (Type: block)

= SOURCE CODE = either: native[ {If condition is TRUE, evaluates the first block, else evaluates the second.} condition true-block [block!] false-block [block!] ]