version 1.23, 1997/03/27 13:31:01
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version 1.31, 1998/12/19 13:43:17
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\ EXTEND.FS CORE-EXT Word not fully tested! 12may93jaw |
\ EXTEND.FS CORE-EXT Word not fully tested! 12may93jaw |
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\ Copyright (C) 1995 Free Software Foundation, Inc. |
\ Copyright (C) 1995,1998 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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Line 73 decimal
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Line 73 decimal
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: C" ( compilation "...<quote>" -- ; run-time -- c-addr ) \ core-ext c-quote |
: C" ( compilation "...<quote>" -- ; run-time -- c-addr ) \ core-ext c-quote |
[char] " parse postpone CLiteral ; immediate restrict |
[char] " parse postpone CLiteral ; immediate restrict |
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\ UNUSED 17may93jaw |
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: dictionary-end ( -- addr ) |
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forthstart dup 3 cells + @ + ; |
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: unused ( -- u ) \ core-ext |
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dictionary-end here - ; |
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\ [COMPILE] 17may93jaw |
\ [COMPILE] 17may93jaw |
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: [compile] ( compilation "name" -- ; run-time ? -- ? ) \ core-ext bracket-compile |
: [compile] ( compilation "name" -- ; run-time ? -- ? ) \ core-ext bracket-compile |
' compile, ; immediate |
comp' drop compile, ; immediate |
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\ MARKER 17may93jaw |
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\ : marker here last @ create , , DOES> dup @ last ! cell+ @ dp ! ; |
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\ doesn't work now. vocabularies? |
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\ CONVERT 17may93jaw |
\ CONVERT 17may93jaw |
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: convert ( ud1 c-addr1 -- ud2 c-addr2 ) \ core-ext |
: convert ( ud1 c-addr1 -- ud2 c-addr2 ) \ core-ext |
\ obsolescent; superseded by @code{>number}. |
\G obsolescent; superseded by @code{>number}. |
true >number drop ; |
char+ true >number drop ; |
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\ ERASE 17may93jaw |
\ ERASE 17may93jaw |
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Line 107 decimal
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Line 94 decimal
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\ SEARCH 02sep94py |
\ SEARCH 02sep94py |
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: search ( buf buflen text textlen -- restbuf restlen flag ) \ string |
: search ( c-addr1 u1 c-addr2 u2 -- c-addr3 u3 flag ) \ string |
2over 2 pick - 1+ 3 pick c@ >r |
\ not very efficient; but if we want efficiency, we'll do it as primitive |
BEGIN |
2>r 2dup |
r@ scan dup |
begin |
WHILE |
dup r@ >= |
>r >r 2dup r@ -text |
while |
0= |
over 2r@ swap -text 0= if |
IF |
2swap 2drop 2r> 2drop true exit |
>r drop 2drop r> r> r> rot + 1- rdrop true |
endif |
EXIT |
1 /string |
THEN |
repeat |
r> r> 1 /string |
2drop 2r> 2drop false ; |
REPEAT |
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2drop 2drop rdrop false ; |
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\ SOURCE-ID SAVE-INPUT RESTORE-INPUT 11jun93jaw |
\ SOURCE-ID SAVE-INPUT RESTORE-INPUT 11jun93jaw |
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Line 178 variable span ( -- a-addr ) \ core-ext
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Line 163 variable span ( -- a-addr ) \ core-ext
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2 pick swap /string type |
2 pick swap /string type |
nip span ! ; |
nip span ! ; |
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\ marker 18dec94py |
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\ Marker creates a mark that is removed (including everything |
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\ defined afterwards) when executing the mark. |
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: included-files-mark ( -- u ) |
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included-files 2@ nip |
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blk @ 0= |
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if \ not input from blocks |
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source-id 1 -1 within |
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if \ input from file |
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1- \ do not include the last file (hopefully this is the |
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\ currently included file) |
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then |
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then ; |
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\ hmm, most of the saving appears to be pretty unnecessary: we could |
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\ derive the wordlists and the words that have to be kept from the |
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\ saved value of dp value. - anton |
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: marker, ( -- mark ) |
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here |
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included-files-mark , |
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dup A, \ here |
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voclink @ A, \ vocabulary list start |
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\ for all wordlists, remember wordlist-id (the linked list) |
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voclink |
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BEGIN |
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@ dup |
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WHILE |
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dup 0 wordlist-link - wordlist-id @ A, |
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REPEAT |
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drop |
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\ remember udp |
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udp @ , ; |
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: marker! ( mark -- ) |
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\ reset included files count; resize will happen on next add-included-file |
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included-files 2@ drop over @ included-files 2! cell+ |
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\ rest of marker! |
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dup @ swap cell+ ( here rest-of-marker ) |
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dup @ voclink ! cell+ |
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\ restore wordlists to former words |
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voclink |
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BEGIN |
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@ dup |
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WHILE |
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over @ over 0 wordlist-link - wordlist-id ! |
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swap cell+ swap |
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REPEAT |
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drop |
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\ rehash wordlists to remove forgotten words |
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\ why don't we do this in a single step? - anton |
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voclink |
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BEGIN |
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@ dup |
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WHILE |
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dup 0 wordlist-link - rehash |
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REPEAT |
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drop |
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\ restore udp and dp |
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@ udp ! dp ! |
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\ clean up vocabulary stack |
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0 vp @ 0 |
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?DO |
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vp cell+ I cells + @ dup here > |
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IF drop ELSE swap 1+ THEN |
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LOOP |
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dup 0= or set-order \ -1 set-order if order is empty |
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get-current here > IF |
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forth-wordlist set-current |
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THEN ; |
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: marker ( "mark" -- ) |
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marker, Create A, |
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DOES> ( -- ) |
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@ marker! ; |
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