version 1.62, 2007/07/19 13:28:18
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version 1.77, 2011/12/31 15:29:25
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\ command line edit and history support 16oct94py |
\ command line edit and history support 16oct94py |
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\ Copyright (C) 1995,2000,2003,2004,2005,2006 Free Software Foundation, Inc. |
\ Copyright (C) 1995,2000,2003,2004,2005,2006,2007,2008,2010,2011 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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\ Gforth is free software; you can redistribute it and/or |
\ Gforth is free software; you can redistribute it and/or |
\ modify it under the terms of the GNU General Public License |
\ modify it under the terms of the GNU General Public License |
\ as published by the Free Software Foundation; either version 2 |
\ as published by the Free Software Foundation, either version 3 |
\ of the License, or (at your option) any later version. |
\ of the License, or (at your option) any later version. |
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\ This program is distributed in the hope that it will be useful, |
\ This program is distributed in the hope that it will be useful, |
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\ GNU General Public License for more details. |
\ GNU General Public License for more details. |
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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, see http://www.gnu.org/licenses/. |
\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
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: ctrl-i ( "<char>" -- c ) |
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char toupper $40 xor ; |
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' ctrl-i |
:noname |
:noname |
char [char] @ - ; |
ctrl-i postpone Literal ; |
:noname |
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char [char] @ - postpone Literal ; |
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interpret/compile: ctrl ( "<char>" -- ctrl-code ) |
interpret/compile: ctrl ( "<char>" -- ctrl-code ) |
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\ command line editing 16oct94py |
\ command line editing 16oct94py |
Line 74 defer cur-correct ( addr u -- )
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Line 75 defer cur-correct ( addr u -- )
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' backspaces IS back-restore |
' backspaces IS back-restore |
' 2drop IS cur-correct |
' 2drop IS cur-correct |
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Variable linew |
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Variable screenw |
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: linew-off linew off cols screenw ! ; |
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[IFDEF] x-width |
[IFDEF] x-width |
: clear-line ( max span addr pos1 -- max addr ) |
: clear-line ( max span addr pos1 -- max addr ) |
back-restore over over swap x-width spaces swap back-restore ; |
drop linew @ back-restore over over swap x-width |
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dup spaces back-restore nip linew off ; |
[ELSE] |
[ELSE] |
: clear-line ( max span addr pos1 -- max addr ) |
: clear-line ( max span addr pos1 -- max addr ) |
back-restore over spaces swap back-restore ; |
back-restore over spaces swap back-restore ; |
Line 200 require utf-8.fs
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Line 206 require utf-8.fs
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[IFUNDEF] #esc 27 Constant #esc [THEN] |
[IFUNDEF] #esc 27 Constant #esc [THEN] |
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Variable curpos |
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Variable screenw |
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: at-deltaxy ( dx dy -- ) |
: at-deltaxy ( dx dy -- ) |
#esc emit '[ emit dup abs 0 .r 0< IF 'A ELSE 'B THEN emit |
over 0< over 0= and IF drop abs backspaces EXIT THEN |
#esc emit '[ emit dup abs 0 .r 0< IF 'D ELSE 'C THEN emit ; |
base @ >r decimal |
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?dup IF |
: cygwin? ( -- flag ) s" TERM" getenv s" cygwin" str= ; |
#esc emit '[ emit dup abs 0 .r 0< IF 'A ELSE 'B THEN emit |
: at-xy? ( -- x y ) |
THEN |
key? drop \ make sure prep_terminal() is executed |
?dup IF |
#esc emit ." [6n" 0 0 |
#esc emit '[ emit dup abs 0 .r 0< IF 'D ELSE 'C THEN emit |
BEGIN key dup 'R <> WHILE |
THEN r> base ! ; |
dup '; = IF drop swap ELSE |
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dup '0 '9 1+ within IF '0 - swap 10 * + ELSE |
\ : cygwin? ( -- flag ) s" TERM" getenv s" cygwin" str= ; |
drop THEN THEN |
\ : at-xy? ( -- x y ) |
REPEAT drop 1- swap 1- ; |
\ key? drop \ make sure prep_terminal() is executed |
: cursor@ ( -- n ) at-xy? screenw @ * + ; |
\ #esc emit ." [6n" 0 0 |
: cursor! ( n -- ) screenw @ /mod at-xy ; |
\ BEGIN key dup 'R <> WHILE |
: xcur-correct ( addr u -- ) |
\ dup '; = IF drop swap ELSE |
cygwin? curpos @ -1 = or IF 2drop EXIT THEN |
\ dup '0 '9 1+ within IF '0 - swap 10 * + ELSE |
x-width curpos @ + cursor@ - |
\ drop THEN THEN |
screenw @ >r r@ 2/ + r@ / r> * negate curpos +! ; |
\ REPEAT drop 1- swap 1- ; |
: save-cursor ( -- ) |
\ : cursor@ ( -- n ) at-xy? screenw @ * + ; |
cygwin? IF #esc emit '7 emit ELSE |
\ : cursor! ( n -- ) screenw @ /mod at-xy ; |
key? IF -1 ELSE form nip screenw ! cursor@ THEN curpos ! THEN ; |
: xcur-correct ( addr u -- ) x-width linew ! ; |
: restore-cursor ( -- ) |
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cygwin? IF #esc emit '8 emit ELSE |
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curpos @ dup -1 = IF drop ELSE cursor! THEN THEN ; |
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' xcur-correct IS cur-correct |
' xcur-correct IS cur-correct |
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: xback-restore ( u -- ) |
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dup screenw @ mod 0= IF 1- 0 max THEN |
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\ correction for line=screenw, no wraparound then! |
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screenw @ /mod negate swap negate swap at-deltaxy ; |
: .rest ( addr pos1 -- addr pos1 ) |
: .rest ( addr pos1 -- addr pos1 ) |
key? ?EXIT |
linew @ xback-restore 2dup type 2dup cur-correct ; |
restore-cursor 2dup type 2dup cur-correct ; |
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: .all ( span addr pos1 -- span addr pos1 ) |
: .all ( span addr pos1 -- span addr pos1 ) |
key? ?EXIT |
linew @ xback-restore >r 2dup swap type 2dup swap cur-correct r> ; |
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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: xretype ( max span addr pos1 -- max span addr pos1 ) |
: xretype ( max span addr pos1 -- max span addr pos1 f ) |
restore-cursor screenw @ >r save-cursor |
.all cols screenw @ >r screenw ! |
.all 2 pick r@ / screenw @ r> - * 0 max spaces .rest false ; |
linew @ screenw @ / linew @ r@ / max |
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screenw @ r> - * 0 max |
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dup spaces linew +! .rest false ; |
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\ In the following, addr max is the buffer, addr span is the current |
\ In the following, addr max is the buffer, addr span is the current |
\ string in the buffer, and pos1 is the cursor position in the buffer. |
\ string in the buffer, and pos1 is the cursor position in the buffer. |
Line 255 Variable screenw
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Line 256 Variable screenw
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2dup chars + r@ swap r@ xc-size xc!+? 2drop drop |
2dup chars + r@ swap r@ xc-size xc!+? 2drop drop |
r> xc-size >r rot r@ chars + -rot r> chars + ; |
r> xc-size >r rot r@ chars + -rot r> chars + ; |
: (xins) ( max span addr pos1 xc -- max span addr pos2 ) |
: (xins) ( max span addr pos1 xc -- max span addr pos2 ) |
<xins> .all .rest ; |
<xins> key? 0= IF .all .rest THEN ; |
: xback ( max span addr pos1 -- max span addr pos2 f ) |
: xback ( max span addr pos1 -- max span addr pos2 f ) |
dup IF over + xchar- over - 0 max .all .rest |
dup IF over + xchar- over - 0 max .all .rest |
ELSE bell THEN 0 ; |
ELSE bell THEN 0 ; |
: xforw ( max span addr pos1 -- max span addr pos2 f ) |
: xforw ( max span addr pos1 -- max span addr pos2 f ) |
2 pick over <> IF over + xc@+ xemit over - ELSE bell THEN 0 ; |
2 pick over <> IF over + xc@+ xemit over - ELSE bell THEN |
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2dup cur-correct 0 ; |
: (xdel) ( max span addr pos1 -- max span addr pos2 ) |
: (xdel) ( max span addr pos1 -- max span addr pos2 ) |
over + dup xchar- tuck - >r over - |
over + dup xchar- tuck - >r over - |
>string over r@ + -rot move |
>string over r@ + -rot move |
rot r> - -rot ; |
rot r> - -rot ; |
: ?xdel ( max span addr pos1 -- max span addr pos2 0 ) |
: ?xdel ( max span addr pos1 -- max span addr pos2 0 ) |
dup IF (xdel) .all 2 spaces .rest THEN 0 ; |
dup IF (xdel) .all 2 spaces 2 linew +! .rest THEN 0 ; |
: <xdel> ( max span addr pos1 -- max span addr pos2 0 ) |
: <xdel> ( max span addr pos1 -- max span addr pos2 0 ) |
2 pick over <> |
2 pick over <> |
IF xforw drop (xdel) .all 2 spaces .rest |
IF xforw drop (xdel) .all 2 spaces 2 linew +! .rest |
ELSE bell THEN 0 ; |
ELSE bell THEN 0 ; |
: xeof 2 pick over or 0= IF bye ELSE <xdel> THEN ; |
: xeof 2 pick over or 0= IF bye ELSE <xdel> THEN ; |
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Line 278 Variable screenw
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Line 280 Variable screenw
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: xend-pos ( max span addr pos1 -- max span addr span 0 ) |
: xend-pos ( max span addr pos1 -- max span addr span 0 ) |
drop over .all 0 ; |
drop over .all 0 ; |
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: xclear-rest ( max span addr pos -- max pos addr pos false ) |
: xclear-line ( max span addr pos1 -- max addr ) |
rot >r tuck 2dup r> swap /string u8width dup spaces linew +! .all 0 ; |
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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: (xenter) ( max span addr pos1 -- max span addr pos2 true ) |
: (xenter) ( max span addr pos1 -- max span addr pos2 true ) |
>r end^ 2@ hist-setpos |
>r end^ 2@ hist-setpos |
2dup swap history write-line drop ( throw ) \ don't worry about errors |
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> curpos @ -1 = key? or IF |
r> .all space true ; |
>r 2dup swap type r> |
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ELSE |
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.all |
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THEN space true ; |
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: xkill-expand ( max span addr pos1 -- max span addr pos2 ) |
: xkill-expand ( max span addr pos1 -- max span addr pos2 ) |
prefix-found cell+ @ ?dup IF >r |
prefix-found cell+ @ ?dup IF >r |
r@ - >string over r@ + -rot move |
r@ - >string over r@ + -rot move |
rot r@ - -rot .all r> spaces .rest THEN ; |
rot r@ - -rot .all r@ spaces r> back-restore .rest THEN ; |
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[IFUNDEF] insert |
: insert ( string length buffer size -- ) |
: insert ( string length buffer size -- ) |
rot over min >r r@ - ( left over ) |
rot over min >r r@ - ( left over ) |
over dup r@ + rot move r> move ; |
over dup r@ + rot move r> move ; |
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[THEN] |
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: xtab-expand ( max span addr pos1 -- max span addr pos2 0 ) |
: xtab-expand ( max span addr pos1 -- max span addr pos2 0 ) |
key? IF #tab (xins) 0 EXIT THEN |
key? IF #tab (xins) 0 EXIT THEN |
Line 320 Variable screenw
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Line 317 Variable screenw
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['] ?xdel ctrl H bindkey |
['] ?xdel ctrl H bindkey |
['] xeof ctrl D bindkey |
['] xeof ctrl D bindkey |
['] <xdel> ctrl X bindkey |
['] <xdel> ctrl X bindkey |
['] xclear-tib ctrl K bindkey |
['] xclear-rest ctrl K bindkey |
['] xfirst-pos ctrl A bindkey |
['] xfirst-pos ctrl A bindkey |
['] xend-pos ctrl E bindkey |
['] xend-pos ctrl E bindkey |
['] xretype ctrl L bindkey |
['] xretype ctrl L bindkey |
Line 329 Variable screenw
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Line 326 Variable screenw
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['] xtab-expand #tab bindkey |
['] xtab-expand #tab bindkey |
['] (xins) IS insert-char |
['] (xins) IS insert-char |
['] kill-prefix IS everychar |
['] kill-prefix IS everychar |
['] save-cursor IS everyline |
[ifdef] everyline |
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['] linew-off IS everyline |
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[endif] |
['] xback-restore IS back-restore |
['] xback-restore IS back-restore |
['] xcur-correct IS cur-correct |
['] xcur-correct IS cur-correct |
; |
; |