ref: d210d6548b86799554676b4dc5146ff0f4174999
dir: /softwords/softcore.fr/
\ ** ficl/softwords/softcore.fr
\ ** FICL soft extensions
\ ** John Sadler (john_sadler@alum.mit.edu)
\ ** September, 1998
\ ** Ficl USER variables
\ ** See words.c for primitive def'n of USER
\ #if FICL_WANT_USER
variable nUser 0 nUser !
: user \ name ( -- )
nUser dup @ user 1 swap +! ;
\ #endif
\ ** ficl extras
\ EMPTY cleans the parameter stack
: empty ( xn..x1 -- ) depth 0 ?do drop loop ;
\ CELL- undoes CELL+
: cell- ( addr -- addr ) [ 1 cells ] literal - ;
: -rot ( a b c -- c a b ) 2 -roll ;
\ ** CORE
: abs ( x -- x )
dup 0< if negate endif ;
decimal 32 constant bl
: space ( -- ) bl emit ;
: spaces ( n -- ) 0 ?do space loop ;
: abort"
postpone if
postpone ."
postpone cr
postpone abort
postpone endif
; immediate
\ ** CORE EXT
0 constant false
-1 constant true
: <> = invert ;
: 0<> 0= invert ;
: compile, , ;
: erase ( addr u -- ) 0 fill ;
: nip ( y x -- x ) swap drop ;
: tuck ( y x -- x y x) swap over ;
\ ** LOCAL EXT word set
\ #if FICL_WANT_LOCALS
: locals| ( name...name | -- )
begin
bl word count
dup 0= abort" where's the delimiter??"
over c@
[char] | - over 1- or
while
(local)
repeat 2drop 0 0 (local)
; immediate
: local ( name -- ) bl word count (local) ; immediate
: end-locals ( -- ) 0 0 (local) ; immediate
\ #endif
\ ** TOOLS word set...
: ? ( addr -- ) @ . ;
: dump ( addr u -- )
0 ?do
dup c@ . 1+
i 7 and 7 = if cr endif
loop drop
;
\ ** SEARCH+EXT words and ficl helpers
\
: wordlist ( -- )
1 ficl-wordlist ;
\ DO_VOCABULARY handles the DOES> part of a VOCABULARY
\ When executed, new voc replaces top of search stack
: do-vocabulary ( -- )
does> @ search> drop >search ;
: vocabulary ( name -- )
wordlist create , do-vocabulary ;
: ficl-vocabulary ( nBuckets name -- )
ficl-wordlist create , do-vocabulary ;
\ ALSO dups the search stack...
: also ( -- )
search> dup >search >search ;
\ FORTH drops the top of the search stack and pushes FORTH-WORDLIST
: forth ( -- )
search> drop
forth-wordlist >search ;
\ ONLY sets the search order to a default state
: only ( -- )
-1 set-order ;
\ ORDER displays the compile wid and the search order list
: order ( -- )
." Search: "
get-order 0 ?do x. loop cr
." Compile: " get-current x. cr ;
\ PREVIOUS drops the search order stack
: previous ( -- ) search> drop ;
\ FICL-SET-CURRENT sets the compile wordlist and pushes the previous value
: ficl-set-current ( wid -- old-wid )
get-current swap set-current ;
wordlist constant hidden
: hide hidden dup >search ficl-set-current ;
\ ** E N D S O F T C O R E . F R