version 1.26, 2000/09/23 15:46:57
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version 1.33, 2004/12/24 14:08:43
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\ command line edit and history support 16oct94py |
\ command line edit and history support 16oct94py |
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\ Copyright (C) 1995,2000 Free Software Foundation, Inc. |
\ Copyright (C) 1995,2000,2003 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 46 interpret/compile: ctrl ( "<char>" -- c
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Line 46 interpret/compile: ctrl ( "<char>" -- c
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IF forw drop (del) ELSE #bell emit THEN 0 ; |
IF forw drop (del) ELSE #bell emit THEN 0 ; |
: eof 2 pick over or 0= IF bye ELSE <del> THEN ; |
: eof 2 pick over or 0= IF bye ELSE <del> THEN ; |
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' forw ctrl F cells ctrlkeys + ! |
: bindkey ( xt key -- ) cells ctrlkeys + ! ; |
' back ctrl B cells ctrlkeys + ! |
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' ?del ctrl H cells ctrlkeys + ! |
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' eof ctrl D cells ctrlkeys + ! |
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' <del> ctrl X cells ctrlkeys + ! |
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' (ins) IS insert-char |
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\ history support 16oct94py |
\ history support 16oct94py |
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Line 70 interpret/compile: ctrl ( "<char>" -- c
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Line 64 interpret/compile: ctrl ( "<char>" -- c
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nip nip |
nip nip |
THEN ; |
THEN ; |
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s" os-class" environment? [IF] s" unix" compare 0= [ELSE] true [THEN] |
s" os-class" environment? [IF] s" unix" str= [ELSE] true [THEN] |
[IF] |
[IF] |
: history-file ( -- addr u ) |
: history-file ( -- addr u ) |
s" GFORTHHIST" getenv dup 0= IF |
s" GFORTHHIST" getenv dup 0= IF |
Line 98 s" os-class" environment? [IF] s" unix"
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Line 92 s" os-class" environment? [IF] s" unix"
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: clear-tib ( max span addr pos -- max 0 addr 0 false ) |
: clear-tib ( max span addr pos -- max 0 addr 0 false ) |
clear-line 0 tuck dup ; |
clear-line 0 tuck dup ; |
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: hist-pos ( -- ud ) history file-position throw ; |
: hist-pos ( -- ud ) history file-position drop ( throw ) ; |
: hist-setpos ( ud -- ) history reposition-file throw ; |
: hist-setpos ( ud -- ) history reposition-file drop ( throw ) ; |
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: get-line ( addr len -- len' flag ) |
: get-line ( addr len -- len' flag ) |
swap history read-line throw ; |
swap history read-line throw ; |
Line 127 Create lfpad #lf c,
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Line 121 Create lfpad #lf c,
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: (enter) ( max span addr pos1 -- max span addr pos2 true ) |
: (enter) ( max span addr pos1 -- max span addr pos2 true ) |
>r end^ 2@ hist-setpos |
>r end^ 2@ hist-setpos |
2dup swap history write-line throw |
2dup swap history write-line drop ( throw ) \ don't worry about errors |
hist-pos 2dup backward^ 2! end^ 2! |
hist-pos 2dup backward^ 2! end^ 2! |
r> (ret) ; |
r> (ret) ; |
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Line 144 Create lfpad #lf c,
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Line 138 Create lfpad #lf c,
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Create prefix-found 0 , 0 , |
Create prefix-found 0 , 0 , |
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: sgn ( n -- -1/0/1 ) |
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dup 0= IF EXIT THEN 0< 2* 1+ ; |
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: capscomp ( c_addr1 u c_addr2 -- n ) |
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swap bounds |
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?DO dup c@ I c@ <> |
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IF dup c@ toupper I c@ toupper = |
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ELSE true THEN WHILE 1+ LOOP drop 0 |
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ELSE c@ toupper I c@ toupper - unloop THEN sgn ; |
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: word-lex ( nfa1 nfa2 -- -1/0/1 ) |
: word-lex ( nfa1 nfa2 -- -1/0/1 ) |
dup 0= |
dup 0= |
IF |
IF |
Line 204 Create prefix-found 0 , 0 ,
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Line 208 Create prefix-found 0 , 0 ,
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5 pick over 4 pick + prefix-found @ 0<> - < ; |
5 pick over 4 pick + prefix-found @ 0<> - < ; |
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: tab-expand ( max span addr pos1 -- max span addr pos2 0 ) |
: tab-expand ( max span addr pos1 -- max span addr pos2 0 ) |
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key? IF #tab (ins) 0 EXIT THEN |
kill-expand 2dup extract-word dup 0= IF nip EXIT THEN |
kill-expand 2dup extract-word dup 0= IF nip EXIT THEN |
search-prefix tib-full? |
search-prefix tib-full? |
IF 7 emit 2drop 0 0 prefix-found 2! |
IF 7 emit 2drop 0 0 prefix-found 2! |
Line 213 Create prefix-found 0 , 0 ,
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Line 218 Create prefix-found 0 , 0 ,
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: kill-prefix ( key -- key ) |
: kill-prefix ( key -- key ) |
dup #tab <> IF 0 0 prefix-found 2! THEN ; |
dup #tab <> IF 0 0 prefix-found 2! THEN ; |
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' kill-prefix IS everychar |
: 8-bit-io ( -- ) |
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['] forw ctrl F bindkey |
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['] back ctrl B bindkey |
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['] ?del ctrl H bindkey |
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['] eof ctrl D bindkey |
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['] <del> ctrl X bindkey |
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['] next-line ctrl N bindkey |
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['] prev-line ctrl P bindkey |
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['] clear-tib ctrl K bindkey |
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['] first-pos ctrl A bindkey |
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['] end-pos ctrl E bindkey |
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['] (enter) #lf bindkey |
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['] (enter) #cr bindkey |
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['] tab-expand #tab bindkey |
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['] (ins) IS insert-char |
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['] kill-prefix IS everychar |
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['] noop IS everyline |
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[ action-of key ] Literal IS key |
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[ action-of emit ] Literal IS emit ; |
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\ UTF-8 support |
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include utf-8.fs |
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: utf-8-cold ( -- ) |
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s" LANG" getenv s" .UTF-8" search nip nip |
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IF utf-8-io ELSE 8-bit-io THEN ; |
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' utf-8-cold INIT8 chained |
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' next-line ctrl N cells ctrlkeys + ! |
utf-8-cold |
' prev-line ctrl P cells ctrlkeys + ! |
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' clear-tib ctrl K cells ctrlkeys + ! |
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' first-pos ctrl A cells ctrlkeys + ! |
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' end-pos ctrl E cells ctrlkeys + ! |
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' (enter) #lf cells ctrlkeys + ! |
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' (enter) #cr cells ctrlkeys + ! |
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' tab-expand #tab cells ctrlkeys + ! |
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\ initializing history |
\ initializing history |
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Line 239 Create prefix-found 0 , 0 ,
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Line 265 Create prefix-found 0 , 0 ,
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2dup forward^ 2! 2dup backward^ 2! end^ 2! |
2dup forward^ 2! 2dup backward^ 2! end^ 2! |
['] next-line ['] prev-line ['] (enter) |
['] next-line ['] prev-line ['] (enter) |
endif |
endif |
dup |
dup #lf bindkey |
[ #lf cells ctrlkeys + ]L ! |
#cr bindkey |
[ #cr cells ctrlkeys + ]L ! |
ctrl P bindkey |
[ ctrl P cells ctrlkeys + ]L ! |
ctrl N bindkey |
[ ctrl N cells ctrlkeys + ]L ! |
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; |
; |
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: history-cold ( -- ) |
: history-cold ( -- ) |