version 1.17, 1998/10/14 22:23:12
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version 1.31, 2003/03/09 15:16:50
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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 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 16
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Line 16
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\ You should have received a copy of the GNU General Public License |
\ You should have received a copy of the GNU General Public License |
\ along with this program; if not, write to the Free Software |
\ along with this program; if not, write to the Free Software |
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
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:noname |
:noname |
char [char] @ - ; |
char [char] @ - ; |
Line 41 interpret/compile: ctrl ( "<char>" -- c
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Line 41 interpret/compile: ctrl ( "<char>" -- c
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: (ret) type-rest drop true space ; |
: (ret) type-rest drop true space ; |
: back dup IF 1- #bs emit ELSE #bell emit THEN 0 ; |
: back dup IF 1- #bs emit ELSE #bell emit THEN 0 ; |
: forw 2 pick over <> IF 2dup + c@ emit 1+ ELSE #bell emit THEN 0 ; |
: forw 2 pick over <> IF 2dup + c@ emit 1+ ELSE #bell emit THEN 0 ; |
: eof 2 pick over or 0= IF |
: <del> ( max span addr pos1 -- max span addr pos2 0 ) |
bye |
2 pick over <> |
ELSE 2 pick over <> |
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 ; |
THEN ; |
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: bindkey ( xt key -- ) cells ctrlkeys + ! ; |
' forw ctrl F cells ctrlkeys + ! |
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' back ctrl B cells ctrlkeys + ! |
' forw ctrl F bindkey |
' ?del ctrl H cells ctrlkeys + ! |
' back ctrl B bindkey |
' eof ctrl D cells ctrlkeys + ! |
' ?del ctrl H bindkey |
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' eof ctrl D bindkey |
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' <del> ctrl X bindkey |
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' (ins) IS insert-char |
' (ins) IS insert-char |
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Line 63 interpret/compile: ctrl ( "<char>" -- c
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Line 65 interpret/compile: ctrl ( "<char>" -- c
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2Variable end^ |
2Variable end^ |
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: force-open ( addr len -- fid ) |
: force-open ( addr len -- fid ) |
2dup r/w open-file 0< |
2dup r/w open-file |
IF drop r/w create-file |
IF |
throw ELSE nip nip THEN ; |
drop r/w create-file throw |
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ELSE |
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nip nip |
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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 87 s" os-class" environment? [IF] s" unix"
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Line 92 s" os-class" environment? [IF] s" unix"
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s" /ghist.fs" pad +place pad count ; |
s" /ghist.fs" pad +place pad count ; |
[THEN] |
[THEN] |
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: get-history ( addr len -- ) |
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['] force-open catch |
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dup 0< IF ." can't open " history-file type cr throw THEN drop |
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to history |
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history file-size throw |
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2dup forward^ 2! 2dup backward^ 2! end^ 2! ; |
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: history-cold ( -- ) |
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history-file get-history ; |
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' history-cold INIT8 chained |
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history-cold |
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\ moving in history file 16oct94py |
\ moving in history file 16oct94py |
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: clear-line ( max span addr pos1 -- max addr ) |
: clear-line ( max span addr pos1 -- max addr ) |
Line 121 history-cold
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Line 113 history-cold
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hist-pos forward^ 2! |
hist-pos forward^ 2! |
tuck 2dup type 0 ; |
tuck 2dup type 0 ; |
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: prev-line ( max span addr pos1 -- max span addr pos2 false ) |
: find-prev-line ( max addr -- max span addr pos2 ) |
clear-line backward^ 2@ forward^ 2! |
backward^ 2@ forward^ 2! |
over 2 + negate s>d backward^ 2@ d+ 0. dmax 2dup hist-setpos |
over 2 + negate s>d backward^ 2@ d+ 0. dmax 2dup hist-setpos |
BEGIN |
BEGIN |
backward^ 2! 2dup get-line WHILE |
backward^ 2! 2dup get-line WHILE |
hist-pos 2dup forward^ 2@ d< WHILE |
hist-pos 2dup forward^ 2@ d< WHILE |
rot drop |
rot drop |
REPEAT 2drop THEN |
REPEAT 2drop THEN tuck ; |
tuck 2dup type 0 ; |
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: prev-line ( max span addr pos1 -- max span addr pos2 false ) |
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clear-line find-prev-line 2dup type 0 ; |
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Create lfpad #lf c, |
Create lfpad #lf c, |
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Line 152 Create lfpad #lf c,
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Line 146 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 212 Create prefix-found 0 , 0 ,
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Line 216 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 ) |
kill-expand 2dup extract-word search-prefix |
key? IF #tab (ins) 0 EXIT THEN |
tib-full? |
kill-expand 2dup extract-word dup 0= IF nip EXIT THEN |
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search-prefix tib-full? |
IF 7 emit 2drop 0 0 prefix-found 2! |
IF 7 emit 2drop 0 0 prefix-found 2! |
ELSE bounds ?DO I c@ (ins) LOOP THEN |
ELSE bounds ?DO I c@ (ins) LOOP THEN |
prefix-found @ IF bl (ins) THEN 0 ; |
prefix-found @ IF bl (ins) THEN 0 ; |
Line 223 Create prefix-found 0 , 0 ,
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Line 228 Create prefix-found 0 , 0 ,
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' kill-prefix IS everychar |
' kill-prefix IS everychar |
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' next-line ctrl N cells ctrlkeys + ! |
' next-line ctrl N bindkey |
' prev-line ctrl P cells ctrlkeys + ! |
' prev-line ctrl P bindkey |
' clear-tib ctrl K cells ctrlkeys + ! |
' clear-tib ctrl K bindkey |
' first-pos ctrl A cells ctrlkeys + ! |
' first-pos ctrl A bindkey |
' end-pos ctrl E cells ctrlkeys + ! |
' end-pos ctrl E bindkey |
' (enter) #lf cells ctrlkeys + ! |
' (enter) #lf bindkey |
' (enter) #cr cells ctrlkeys + ! |
' (enter) #cr bindkey |
' tab-expand #tab cells ctrlkeys + ! |
' tab-expand #tab bindkey |
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\ initializing history |
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: get-history ( addr len -- ) |
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['] force-open catch |
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?dup-if |
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\ !! >stderr |
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\ history-file type ." : " .error cr |
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drop 2drop |
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['] false ['] false ['] (ret) |
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else |
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to history |
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history file-size throw |
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2dup forward^ 2! 2dup backward^ 2! end^ 2! |
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['] next-line ['] prev-line ['] (enter) |
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endif |
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dup #lf bindkey |
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#cr bindkey |
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ctrl P bindkey |
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ctrl N bindkey |
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; |
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: history-cold ( -- ) |
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history-file get-history ; |
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' history-cold INIT8 chained |
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history-cold |
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