Rebol Programming/first+

= USAGE: = FIRST+ 'word

= DESCRIPTION: = Return FIRST of series, and increment the series index.

FIRST+ is a function value. = ARGUMENTS =
 * word -- Word must be a series. (Type: word paren)

= (SPECIAL ATTRIBUTES) =
 * catch

= SOURCE CODE = first+: func [ {Return FIRST of series, and increment the series index.} [catch] 'word [word! paren!] "Word must be a series." ][   if paren? :word [set/any 'word do :word] throw-on-error [also pick get word 1 set word next get word] ]