2001-04-29 02:36:36 +00:00
|
|
|
\ **
|
|
|
|
|
\ ** Prefix words for ficl
|
|
|
|
|
\ ** submitted by Larry Hastings, larry@hastings.org
|
|
|
|
|
\ **
|
|
|
|
|
\ (jws) To make a prefix, simply create a new definition in the <prefixes>
|
|
|
|
|
\ wordlist. start-prefixes and end-prefixes handle the bookkeeping
|
2002-04-09 17:45:28 +00:00
|
|
|
\
|
2001-04-29 02:36:36 +00:00
|
|
|
\ $FreeBSD$
|
|
|
|
|
|
|
|
|
|
variable save-current
|
|
|
|
|
|
|
|
|
|
: start-prefixes get-current save-current ! <prefixes> set-current ;
|
|
|
|
|
: end-prefixes save-current @ set-current ;
|
|
|
|
|
: show-prefixes <prefixes> >search words search> drop ;
|
|
|
|
|
|
|
|
|
|
\ #if (FICL_EXTENDED_PREFIX)
|
|
|
|
|
|
|
|
|
|
start-prefixes
|
|
|
|
|
|
|
|
|
|
\ define " (double-quote) as an alias for s", and make it a prefix
|
|
|
|
|
: " postpone s" ; immediate
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
\ make .( a prefix (we just create an alias for it in the prefixes list)
|
2007-03-23 22:26:01 +00:00
|
|
|
: .( postpone .( ; immediate
|
2001-04-29 02:36:36 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
\ make \ a prefix, and add // (same thing) as a prefix too
|
|
|
|
|
\ (jws) "//" is precompiled to save aggravation with Perl
|
|
|
|
|
\ : // postpone \ ; immediate
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
\ ** add 0b, 0o, 0d, and 0x as prefixes
|
|
|
|
|
\ ** these temporarily shift the base to 2, 8, 10, and 16 respectively
|
|
|
|
|
\ ** and consume the next number in the input stream, pushing/compiling
|
|
|
|
|
\ ** as normal
|
|
|
|
|
|
|
|
|
|
\ (jws) __tempbase is precompiled, as are 0x and 0d - see prefix.c
|
|
|
|
|
\
|
|
|
|
|
\ : __tempbase { newbase | oldbase -- }
|
|
|
|
|
\ base @ to oldbase
|
|
|
|
|
\ newbase base !
|
|
|
|
|
\ 0 0 parse-word >number 2drop drop
|
|
|
|
|
\ oldbase base !
|
|
|
|
|
\ ;
|
|
|
|
|
|
|
|
|
|
: 0b 2 __tempbase ; immediate
|
|
|
|
|
|
|
|
|
|
: 0o 8 __tempbase ; immediate
|
|
|
|
|
|
|
|
|
|
\ : 0d 10 __tempbase ; immediate
|
|
|
|
|
\ "0d" add-prefix
|
|
|
|
|
|
|
|
|
|
\ : 0x 16 __tempbase ; immediate
|
|
|
|
|
\ "0x" add-prefix
|
|
|
|
|
|
|
|
|
|
end-prefixes
|
|
|
|
|
|
|
|
|
|
\ #endif
|
