version 1.43, 2005/12/31 15:46:08
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version 1.63, 2007/09/30 19:46:10
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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 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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Line 69 s" os-class" environment? [IF] s" unix"
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Line 69 s" os-class" environment? [IF] s" unix"
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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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Variable linew |
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Variable screenw |
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: linew-off linew off form nip screenw ! ; |
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[IFDEF] x-width |
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: clear-line ( max span addr pos1 -- max addr ) |
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drop linew @ back-restore over over swap x-width |
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dup spaces back-restore nip linew off ; |
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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] |
\ : 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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Line 86 s" os-class" environment? [IF] s" unix"
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Line 101 s" os-class" environment? [IF] s" unix"
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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 ; |
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: find-prev-line ( max addr -- max span addr pos2 ) |
: find-prev-line ( max addr -- max span addr pos2 ) |
backward^ 2@ forward^ 2! |
backward^ 2@ forward^ 2! |
Line 98 s" os-class" environment? [IF] s" unix"
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Line 113 s" os-class" environment? [IF] s" unix"
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REPEAT 2drop THEN tuck ; |
REPEAT 2drop THEN tuck ; |
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: prev-line ( max span addr pos1 -- max span addr pos2 false ) |
: prev-line ( max span addr pos1 -- max span addr pos2 false ) |
clear-line find-prev-line 2dup type 0 ; |
clear-line find-prev-line 2dup type 2dup cur-correct 0 ; |
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\ Create lfpad #lf c, |
\ Create lfpad #lf c, |
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Line 191 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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: save-cursor ( -- ) #esc emit '7 emit ; |
: at-deltaxy ( dx dy -- ) |
: restore-cursor ( -- ) #esc emit '8 emit ; |
?dup IF |
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#esc emit '[ emit dup abs 0 .r 0< IF 'A ELSE 'B THEN emit |
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THEN |
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?dup IF |
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#esc emit '[ emit dup abs 0 .r 0< IF 'D ELSE 'C THEN emit |
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THEN ; |
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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 \ make sure prep_terminal() is executed |
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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? screenw @ * + ; |
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\ : cursor! ( n -- ) screenw @ /mod at-xy ; |
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: xcur-correct ( addr u -- ) x-width linew ! ; |
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' xcur-correct IS cur-correct |
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: xback-restore ( u -- ) |
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screenw @ /mod negate swap negate swap at-deltaxy ; |
: .rest ( addr pos1 -- addr pos1 ) |
: .rest ( addr pos1 -- addr pos1 ) |
restore-cursor 2dup type ; |
linew @ xback-restore 2dup type 2dup cur-correct ; |
: .all ( span addr pos1 -- span addr pos1 ) |
: .all ( span addr pos1 -- span addr pos1 ) |
restore-cursor >r 2dup swap type r> ; |
linew @ xback-restore >r 2dup swap type 2dup swap cur-correct r> ; |
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: xretype ( max span addr pos1 -- max span addr pos1 f ) |
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.all form nip screenw @ >r screenw ! |
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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 |
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\ string in the buffer, and pos1 is the cursor position in the buffer. |
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: <xins> ( max span addr pos1 xc -- max span addr pos2 ) |
: <xins> ( max span addr pos1 xc -- max span addr pos2 ) |
>r 2over r@ xc-size + u< IF ( max span addr pos1 R:xc ) |
>r 2over r@ xc-size + u< IF ( max span addr pos1 R:xc ) |
Line 210 require utf-8.fs
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Line 257 require utf-8.fs
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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 230 require utf-8.fs
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Line 278 require utf-8.fs
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: xclear-line ( max span addr pos1 -- max addr ) |
: xclear-line ( max span addr pos1 -- max addr ) |
drop restore-cursor swap spaces restore-cursor ; |
2dup x-width dup xback-restore dup spaces xback-restore drop nip ; |
: xclear-tib ( max span addr pos -- max 0 addr 0 false ) |
: xclear-tib ( max span addr pos -- max 0 addr 0 false ) |
xclear-line 0 tuck dup ; |
xclear-line 0 tuck dup ; |
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Line 243 require utf-8.fs
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Line 291 require utf-8.fs
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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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: insert ( string length buffer size -- ) |
: insert ( string length buffer size -- ) |
rot over min >r r@ - ( left over ) |
rot over min >r r@ - ( left over ) |
Line 269 require utf-8.fs
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Line 317 require utf-8.fs
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['] xclear-tib ctrl K bindkey |
['] xclear-tib ctrl K bindkey |
['] xfirst-pos ctrl A bindkey |
['] xfirst-pos ctrl A bindkey |
['] xend-pos ctrl E bindkey |
['] xend-pos ctrl E bindkey |
['] (xenter) #lf bindkey |
['] xretype ctrl L bindkey |
['] (xenter) #cr bindkey |
history IF ['] (xenter) #lf bindkey THEN |
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history IF ['] (xenter) #cr bindkey THEN |
['] 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 ; |
['] linew-off 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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xchar-history |
xchar-history |
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Line 285 xchar-history
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Line 337 xchar-history
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?dup-if |
?dup-if |
\ !! >stderr |
\ !! >stderr |
\ history-file type ." : " .error cr |
\ history-file type ." : " .error cr |
drop 2drop |
drop 2drop 0 to history |
['] false ['] false ['] (ret) |
['] false ['] false ['] (ret) |
else |
else |
to history |
to history |
Line 302 xchar-history
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Line 354 xchar-history
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: history-cold ( -- ) |
: history-cold ( -- ) |
history-file get-history xchar-history ; |
history-file get-history xchar-history ; |
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' history-cold INIT8 chained |
:noname ( -- ) |
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defers 'cold |
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history-cold |
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; is 'cold |
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history-cold |
history-cold |
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