version 1.43, 2005/12/31 15:46:08
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version 1.51, 2007/05/05 17:26:02
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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 ; |
' backspaces is back-restore |
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[IFDEF] x-width |
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: 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] |
\ : 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 191 require utf-8.fs
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Line 198 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 ; |
Variable curpos |
: restore-cursor ( -- ) #esc emit '8 emit ; |
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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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: cur-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! ; |
: .rest ( addr pos1 -- addr pos1 ) |
: .rest ( addr pos1 -- addr pos1 ) |
restore-cursor 2dup type ; |
restore-cursor 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> ; |
restore-cursor >r 2dup swap type 2dup swap cur-correct r> ; |
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: xback-restore ( u -- ) |
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drop restore-cursor ; |
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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 205 require utf-8.fs
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Line 232 require utf-8.fs
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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? ?EXIT .all .rest ; |
: 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 ; |
Line 269 require utf-8.fs
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Line 296 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 |
history IF ['] (xenter) #lf bindkey THEN |
['] (xenter) #cr bindkey |
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 ; |
['] save-cursor IS everyline |
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['] xback-restore IS back-restore |
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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 314 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 331 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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