| \ command line edit and history support 16oct94py |
\ command line edit and history support 16oct94py |
| |
|
| \ Copyright (C) 1995 Free Software Foundation, Inc. |
\ Copyright (C) 1995,2000,2003,2004,2005,2006 Free Software Foundation, Inc. |
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| \ This file is part of Gforth. |
\ This file is part of Gforth. |
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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. |
| |
|
| :noname |
:noname |
| char [char] @ - ; |
char [char] @ - ; |
| |
|
| : >string ( span addr pos1 -- span addr pos1 addr2 len ) |
: >string ( span addr pos1 -- span addr pos1 addr2 len ) |
| over 3 pick 2 pick chars /string ; |
over 3 pick 2 pick chars /string ; |
| : type-rest ( span addr pos1 -- span addr pos1 back ) |
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| >string tuck type ; |
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| : (del) ( max span addr pos1 -- max span addr pos2 ) |
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| 1- >string over 1+ -rot move |
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| rot 1- -rot #bs emit type-rest bl emit 1+ backspaces ; |
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| : (ins) ( max span addr pos1 char -- max span addr pos2 ) |
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| >r >string over 1+ swap move 2dup chars + r> swap c! |
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| rot 1+ -rot type-rest 1- backspaces 1+ ; |
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| : ?del ( max span addr pos1 -- max span addr pos2 0 ) |
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| dup IF (del) THEN 0 ; |
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| : (ret) type-rest drop true space ; |
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| : back dup IF 1- #bs emit ELSE #bell emit THEN 0 ; |
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| : forw 2 pick over <> IF 2dup + c@ emit 1+ ELSE #bell emit THEN 0 ; |
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| : eof 2 pick over or 0= IF |
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| bye |
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| ELSE 2 pick over <> |
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| IF forw drop (del) ELSE #bell emit THEN 0 |
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| 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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|
| 2Variable end^ |
2Variable end^ |
| |
|
| : 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 |
| 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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| |
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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 ) |
defer back-restore ( u -- ) |
| backspaces over spaces swap backspaces ; |
defer cur-correct ( addr u -- ) |
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' backspaces IS back-restore |
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' 2drop IS cur-correct |
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|
| : clear-tib ( max span addr pos -- max 0 addr 0 false ) |
[IFDEF] x-width |
| clear-line 0 tuck dup ; |
: clear-line ( max span addr pos1 -- max addr ) |
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back-restore over over swap x-width spaces swap back-restore ; |
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[ELSE] |
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: clear-line ( max span addr pos1 -- max addr ) |
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back-restore over spaces swap back-restore ; |
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[THEN] |
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\ : clear-tib ( max span addr pos -- max 0 addr 0 false ) |
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\ 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 ) ; |
| |
|
| : get-line ( addr len -- len' flag ) |
: get-line ( addr len -- len' flag ) |
| swap history read-line throw ; |
swap history read-line throw ; |
| forward^ 2@ 2dup hist-setpos backward^ 2! |
forward^ 2@ 2dup hist-setpos backward^ 2! |
| 2dup get-line drop |
2dup get-line drop |
| hist-pos forward^ 2! |
hist-pos forward^ 2! |
| tuck 2dup type 0 ; |
tuck 2dup type 2dup cur-correct 0 ; |
| |
|
| : 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 ; |
|
| |
|
| Create lfpad #lf c, |
: prev-line ( max span addr pos1 -- max span addr pos2 false ) |
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clear-line find-prev-line 2dup type 2dup cur-correct 0 ; |
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|
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\ 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) ; |
| |
|
| \ some other key commands 16oct94py |
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| : first-pos ( max span addr pos1 -- max span addr 0 0 ) |
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| backspaces 0 0 ; |
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| : end-pos ( max span addr pos1 -- max span addr span 0 ) |
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| type-rest 2drop over 0 ; |
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| |
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| : extract-word ( addr len -- addr' len' ) dup >r |
: extract-word ( addr len -- addr' len' ) dup >r |
| BEGIN 1- dup 0>= WHILE 2dup + c@ bl = UNTIL THEN 1+ |
BEGIN 1- dup 0>= WHILE 2dup + c@ bl = UNTIL THEN 1+ |
| tuck + r> rot - ; |
tuck + r> rot - ; |
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|
| Create prefix-found 0 , 0 , |
Create prefix-found 0 , 0 , |
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|
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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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|
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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 |
| REPEAT |
REPEAT |
| drop r> ; |
drop r> ; |
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|
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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 ; |
| |
|
| : search-prefix ( addr1 len1 -- addr2 len2 ) |
: search-prefix ( addr1 len1 -- addr2 len2 ) |
| [ -1 cells ] Literal +LOOP |
[ -1 cells ] Literal +LOOP |
| prefix-string ; |
prefix-string ; |
| |
|
| : kill-expand ( max span addr pos1 -- max span addr pos2 ) |
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| prefix-found cell+ @ 0 ?DO (del) LOOP ; |
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| |
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| : tib-full? ( max span addr pos addr' len' -- max span addr pos addr1 u flag ) |
: tib-full? ( max span addr pos addr' len' -- max span addr pos addr1 u flag ) |
| 5 pick over 4 pick + prefix-found @ 0<> - < ; |
5 pick over 4 pick + prefix-found @ 0<> - < ; |
| |
|
| : tab-expand ( max span addr pos1 -- max span addr pos2 0 ) |
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| kill-expand 2dup extract-word search-prefix |
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| tib-full? |
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| IF 7 emit 2drop 0 0 prefix-found 2! |
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| ELSE bounds ?DO I c@ (ins) LOOP THEN |
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| 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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|
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\ UTF-8 support |
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require utf-8.fs |
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|
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[IFUNDEF] #esc 27 Constant #esc [THEN] |
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|
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Variable curpos |
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s" os-type" environment? [IF] s" cygwin" str= [IF] |
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: cygwin? ( -- flag ) s" TERM" getenv s" cygwin" str= ; |
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: at-xy? ( -- x y ) |
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key? drop |
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#esc emit ." [6n" 0 0 |
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BEGIN key dup 'R <> WHILE |
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dup '; = IF drop swap ELSE |
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dup '0 '9 1+ within IF '0 - swap 10 * + ELSE |
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drop THEN THEN |
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REPEAT drop 1- swap 1- ; |
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: cursor@ ( -- n ) at-xy? form nip * + ; |
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: cursor! ( n -- ) form nip /mod at-xy ; |
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: xcur-correct ( addr u -- ) |
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cygwin? IF 2drop EXIT THEN |
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x-width curpos @ + cursor@ - |
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form nip >r r@ 2/ + r@ / r> * negate curpos +! ; |
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: save-cursor ( -- ) |
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cygwin? IF #esc emit '7 emit ELSE cursor@ curpos ! THEN ; |
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: restore-cursor ( -- ) |
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cygwin? IF #esc emit '8 emit ELSE curpos @ cursor! THEN ; |
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[ELSE] |
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: at-xy? ( -- x y ) |
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key? drop |
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#esc emit ." [6n" 0 0 |
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BEGIN key dup 'R <> WHILE |
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dup '; = IF drop swap ELSE |
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dup '0 '9 1+ within IF '0 - swap 10 * + ELSE |
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drop THEN THEN |
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REPEAT drop 1- swap 1- ; |
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: cursor@ ( -- n ) at-xy? form nip * + ; |
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: cursor! ( n -- ) form nip /mod at-xy ; |
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: xcur-correct ( addr u -- ) x-width curpos @ + cursor@ - |
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form nip >r r@ 2/ + r@ / r> * negate curpos +! ; |
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: save-cursor ( -- ) cursor@ curpos ! ; |
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: restore-cursor ( -- ) curpos @ cursor! ; |
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[THEN] [THEN] |
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' xcur-correct IS cur-correct |
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|
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: .rest ( addr pos1 -- addr pos1 ) |
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key? ?EXIT |
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restore-cursor 2dup type 2dup cur-correct ; |
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: .all ( span addr pos1 -- span addr pos1 ) |
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key? ?EXIT |
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restore-cursor >r 2dup swap type 2dup swap cur-correct r> ; |
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: xback-restore ( u -- ) |
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drop key? ?EXIT |
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restore-cursor ; |
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|
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\ In the following, addr max is the buffer, addr span is the current |
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\ string in the buffer, and pos1 is the cursor position in the buffer. |
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|
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: <xins> ( max span addr pos1 xc -- max span addr pos2 ) |
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>r 2over r@ xc-size + u< IF ( max span addr pos1 R:xc ) |
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rdrop bell EXIT THEN |
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>string over r@ xc-size + swap move |
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2dup chars + r@ swap r@ xc-size xc!+? 2drop drop |
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r> xc-size >r rot r@ chars + -rot r> chars + ; |
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: (xins) ( max span addr pos1 xc -- max span addr pos2 ) |
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<xins> .all .rest ; |
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: xback ( max span addr pos1 -- max span addr pos2 f ) |
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dup IF over + xchar- over - 0 max .all .rest |
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ELSE bell THEN 0 ; |
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: xforw ( max span addr pos1 -- max span addr pos2 f ) |
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2 pick over <> IF over + xc@+ xemit over - ELSE bell THEN 0 ; |
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: (xdel) ( max span addr pos1 -- max span addr pos2 ) |
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over + dup xchar- tuck - >r over - |
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>string over r@ + -rot move |
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rot r> - -rot ; |
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: ?xdel ( max span addr pos1 -- max span addr pos2 0 ) |
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dup IF (xdel) .all 2 spaces .rest THEN 0 ; |
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: <xdel> ( max span addr pos1 -- max span addr pos2 0 ) |
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2 pick over <> |
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IF xforw drop (xdel) .all 2 spaces .rest |
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ELSE bell THEN 0 ; |
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: xeof 2 pick over or 0= IF bye ELSE <xdel> THEN ; |
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|
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: xfirst-pos ( max span addr pos1 -- max span addr 0 0 ) |
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drop 0 .all .rest 0 ; |
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: xend-pos ( max span addr pos1 -- max span addr span 0 ) |
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drop over .all 0 ; |
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|
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|
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: xclear-line ( max span addr pos1 -- max addr ) |
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drop restore-cursor swap spaces restore-cursor ; |
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: xclear-tib ( max span addr pos -- max 0 addr 0 false ) |
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xclear-line 0 tuck dup ; |
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|
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: (xenter) ( max span addr pos1 -- max span addr pos2 true ) |
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>r end^ 2@ hist-setpos |
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2dup swap history write-line drop ( throw ) \ don't worry about errors |
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hist-pos 2dup backward^ 2! end^ 2! |
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r> .all space true ; |
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|
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: xkill-expand ( max span addr pos1 -- max span addr pos2 ) |
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prefix-found cell+ @ ?dup IF >r |
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r@ - >string over r@ + -rot move |
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rot r@ - -rot .all r> spaces .rest THEN ; |
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|
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: insert ( string length buffer size -- ) |
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rot over min >r r@ - ( left over ) |
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over dup r@ + rot move r> move ; |
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|
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: xtab-expand ( max span addr pos1 -- max span addr pos2 0 ) |
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key? IF #tab (xins) 0 EXIT THEN |
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xkill-expand 2dup extract-word dup 0= IF nip EXIT THEN |
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search-prefix tib-full? |
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IF bell 2drop prefix-off |
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ELSE dup >r |
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2>r >string r@ + 2r> 2swap insert |
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r@ + rot r> + -rot |
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THEN |
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prefix-found @ IF bl (xins) ELSE .all .rest THEN 0 ; |
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|
| ' kill-prefix IS everychar |
: xchar-history ( -- ) |
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['] xforw ctrl F bindkey |
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['] xback ctrl B bindkey |
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['] ?xdel ctrl H bindkey |
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['] xeof ctrl D bindkey |
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['] <xdel> ctrl X bindkey |
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['] xclear-tib ctrl K bindkey |
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['] xfirst-pos ctrl A bindkey |
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['] xend-pos ctrl E bindkey |
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history IF ['] (xenter) #lf bindkey THEN |
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history IF ['] (xenter) #cr bindkey THEN |
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['] xtab-expand #tab bindkey |
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['] (xins) IS insert-char |
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['] kill-prefix IS everychar |
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['] save-cursor IS everyline |
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['] xback-restore IS back-restore |
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['] xcur-correct IS cur-correct |
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; |
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|
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xchar-history |
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|
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\ initializing history |
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|
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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 0 to history |
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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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|
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: history-cold ( -- ) |
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history-file get-history xchar-history ; |
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|
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:noname ( -- ) |
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defers 'cold |
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history-cold |
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; is 'cold |
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|
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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 + ! |
|