version 1.17, 1998/10/14 22:23:12
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version 1.38, 2005/01/05 22:13:40
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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) 1995,2000,2003,2004 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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' forw ctrl F cells ctrlkeys + ! |
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' 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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' (ins) IS insert-char |
: bindkey ( xt key -- ) cells ctrlkeys + ! ; |
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\ history support 16oct94py |
\ history support 16oct94py |
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Line 63 interpret/compile: ctrl ( "<char>" -- c
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Line 57 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 84 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 108 history-cold
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Line 92 history-cold
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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 121 history-cold
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Line 105 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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: (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 152 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 189 Create prefix-found 0 , 0 ,
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Line 185 Create prefix-found 0 , 0 ,
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REPEAT |
REPEAT |
drop r> ; |
drop r> ; |
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: prefix-off ( -- ) 0 0 prefix-found 2! ; |
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: prefix-string ( addr len nfa -- addr' len' ) |
: prefix-string ( addr len nfa -- addr' len' ) |
dup prefix-found ! ?dup |
dup prefix-found ! ?dup |
IF |
IF |
name>string rot /string rot drop |
name>string rot /string rot drop |
dup 1+ prefix-found cell+ ! |
dup 1+ prefix-found cell+ ! |
ELSE |
ELSE |
2drop s" " prefix-found cell+ off |
2drop s" " prefix-off |
THEN ; |
THEN ; |
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: search-prefix ( addr1 len1 -- addr2 len2 ) |
: search-prefix ( addr1 len1 -- addr2 len2 ) |
Line 212 Create prefix-found 0 , 0 ,
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Line 210 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 ; |
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: kill-prefix ( key -- key ) |
: kill-prefix ( key -- key ) |
dup #tab <> IF 0 0 prefix-found 2! THEN ; |
dup #tab <> IF prefix-off THEN ; |
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[IFUNDEF] everyline defer everyline [THEN] |
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: 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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require 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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utf-8-cold |
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\ initializing history |
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' kill-prefix IS everychar |
: 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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' next-line ctrl N cells ctrlkeys + ! |
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' 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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