| \G equivalent to @code{] literal} |
\G equivalent to @code{] literal} |
| ] postpone literal ; |
] postpone literal ; |
| |
|
| |
[ifundef] in-dictionary? |
| : in-dictionary? ( x -- f ) |
: in-dictionary? ( x -- f ) |
| forthstart dictionary-end within ; |
forthstart dictionary-end within ; |
| |
[endif] |
| |
|
| : in-return-stack? ( addr -- f ) |
: in-return-stack? ( addr -- f ) |
| rp0 @ swap - [ forthstart 6 cells + ]L @ u< ; |
rp0 @ swap - [ forthstart 6 cells + ]L @ u< ; |
| noname : POSTPONE rdrop |
noname : POSTPONE rdrop |
| lastxt r> cell+ ! \ patch the literal |
lastxt r> cell+ ! \ patch the literal |
| ; immediate |
; immediate |
| |
|
| |
\ !! rewrite slurp-file using slurp-fid |
| |
: slurp-file ( c-addr1 u1 -- c-addr2 u2 ) |
| |
\G @var{c-addr1 u1} is the filename, @var{c-addr2 u2} is the file's contents |
| |
r/o bin open-file throw >r |
| |
r@ file-size throw abort" file too large" |
| |
dup allocate throw swap |
| |
2dup r@ read-file throw over <> abort" could not read whole file" |
| |
r> close-file throw ; |
| |
|
| |
: slurp-fid { fid -- addr u } |
| |
\G @var{addr u} is the content of the file @var{fid} |
| |
0 0 begin ( awhole uwhole ) |
| |
dup 1024 + dup >r extend-mem ( anew awhole uwhole R: unew ) |
| |
rot r@ fid read-file throw ( awhole uwhole uread R: unew ) |
| |
r> 2dup = |
| |
while ( awhole uwhole uread unew ) |
| |
2drop |
| |
repeat |
| |
- + dup >r resize throw r> ; |
| |
|
| |
\ ]] ... [[ |
| |
|
| |
: compile-literal ( n -- ) |
| |
postpone literal ; |
| |
|
| |
: [[ ( -- ) |
| |
\G switch from postpone state to compile state |
| |
\ this is only a marker; it is never really interpreted |
| |
compile-only-error ; immediate |
| |
|
| |
: postponer ( c-addr u -- ) |
| |
2dup find-name dup if ( c-addr u nt ) |
| |
nip nip name>comp |
| |
2dup [comp'] [[ d= if |
| |
2drop ['] compiler is parser |
| |
else |
| |
postpone, |
| |
endif |
| |
else |
| |
drop |
| |
2dup snumber? dup if |
| |
0> IF |
| |
swap postpone literal postpone compile-literal |
| |
THEN |
| |
postpone Literal postpone compile-literal |
| |
2drop |
| |
ELSE |
| |
drop no.extensions |
| |
THEN |
| |
then ; |
| |
|
| |
: ]] ( -- ) |
| |
\ switch into postpone state |
| |
['] postponer is parser state on ; immediate restrict |
| |
|
