version 1.39, 2005/01/10 10:30:55
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version 1.57, 2007/06/17 19:26:42
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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 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 28 interpret/compile: ctrl ( "<char>" -- c
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Line 28 interpret/compile: ctrl ( "<char>" -- c
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: >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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: <del> ( max span addr pos1 -- max span addr pos2 0 ) |
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2 pick over <> |
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IF forw drop (del) ELSE #bell emit THEN 0 ; |
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: eof 2 pick over or 0= IF bye ELSE <del> THEN ; |
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: bindkey ( xt key -- ) cells ctrlkeys + ! ; |
: bindkey ( xt key -- ) cells ctrlkeys + ! ; |
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Line 86 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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: 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 drop ( throw ) ; |
: hist-pos ( -- ud ) history file-position drop ( throw ) ; |
: hist-setpos ( ud -- ) history reposition-file drop ( throw ) ; |
: hist-setpos ( ud -- ) history reposition-file drop ( throw ) ; |
Line 103 s" os-class" environment? [IF] s" unix"
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Line 95 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 115 s" os-class" environment? [IF] s" unix"
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Line 107 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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: (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 |
Line 125 Create lfpad #lf c,
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Line 117 Create lfpad #lf c,
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hist-pos 2dup backward^ 2! end^ 2! |
hist-pos 2dup backward^ 2! end^ 2! |
r> (ret) ; |
r> (ret) ; |
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\ 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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: 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 - ; |
Line 203 Create prefix-found 0 , 0 ,
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Line 188 Create prefix-found 0 , 0 ,
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[ -1 cells ] Literal +LOOP |
[ -1 cells ] Literal +LOOP |
prefix-string ; |
prefix-string ; |
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: 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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: 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<> - < ; |
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: tab-expand ( max span addr pos1 -- max span addr pos2 0 ) |
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key? IF #tab (ins) 0 EXIT THEN |
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kill-expand 2dup extract-word dup 0= IF nip EXIT THEN |
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search-prefix 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 prefix-off 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 |
\ UTF-8 support |
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require utf-8.fs |
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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: 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? curpos @ -1 = or 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 |
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key? IF -1 ELSE cursor@ THEN curpos ! THEN ; |
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: 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 |
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: .rest ( addr pos1 -- addr pos1 ) |
: .rest ( addr pos1 -- addr pos1 ) |
restore-cursor 2dup type ; |
key? ?EXIT |
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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> ; |
key? ?EXIT |
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restore-cursor >r 2dup swap type 2dup swap cur-correct r> ; |
: <u8ins> ( max span addr pos1 u8char -- max span addr pos2 ) |
: xback-restore ( u -- ) |
>r 2over r@ u8len + u< IF rdrop bell EXIT THEN |
drop key? ?EXIT |
>string over r@ u8len + swap move 2dup chars + r@ swap u8!+ drop |
restore-cursor ; |
r> u8len >r rot r@ chars + -rot r> chars + ; |
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: (u8ins) ( max span addr pos1 u8char -- max span addr pos2 ) |
\ In the following, addr max is the buffer, addr span is the current |
<u8ins> .all .rest ; |
\ string in the buffer, and pos1 is the cursor position in the buffer. |
: u8back ( max span addr pos1 -- max span addr pos2 f ) |
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dup IF over + u8<< over - 0 max .all .rest |
: <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 |
ELSE bell THEN 0 ; |
ELSE bell THEN 0 ; |
: u8forw ( max span addr pos1 -- max span addr pos2 f ) |
: xforw ( max span addr pos1 -- max span addr pos2 f ) |
2 pick over <> IF over + u8@+ u8emit over - ELSE bell THEN 0 ; |
2 pick over <> IF over + xc@+ xemit over - ELSE bell THEN 0 ; |
: (u8del) ( max span addr pos1 -- max span addr pos2 ) |
: (xdel) ( max span addr pos1 -- max span addr pos2 ) |
over + dup u8<< 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 ; |
: ?u8del ( max span addr pos1 -- max span addr pos2 0 ) |
: ?xdel ( max span addr pos1 -- max span addr pos2 0 ) |
dup IF (u8del) .all 2 spaces .rest THEN 0 ; |
dup IF (xdel) .all 2 spaces .rest THEN 0 ; |
: <u8del> ( 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 u8forw drop (u8del) .all 2 spaces .rest |
IF xforw drop (xdel) .all 2 spaces .rest |
ELSE bell THEN 0 ; |
ELSE bell THEN 0 ; |
: u8eof 2 pick over or 0= IF bye ELSE <u8del> THEN ; |
: xeof 2 pick over or 0= IF bye ELSE <xdel> THEN ; |
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: u8first-pos ( max span addr pos1 -- max span addr 0 0 ) |
: xfirst-pos ( max span addr pos1 -- max span addr 0 0 ) |
drop 0 .all .rest 0 ; |
drop 0 .all .rest 0 ; |
: u8end-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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: u8clear-line ( max span addr pos1 -- max addr ) |
: xclear-line ( max span addr pos1 -- max addr ) |
drop restore-cursor swap spaces restore-cursor ; |
drop restore-cursor swap spaces restore-cursor ; |
: u8clear-tib ( max span addr pos -- max 0 addr 0 false ) |
: xclear-tib ( max span addr pos -- max 0 addr 0 false ) |
u8clear-line 0 tuck dup ; |
xclear-line 0 tuck dup ; |
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: (u8enter) ( 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> .all space true ; |
r> curpos @ -1 = key? or IF |
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>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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: u8kill-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 .rest THEN ; |
Line 304 require utf-8.fs
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Line 294 require utf-8.fs
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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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: u8tab-expand ( max span addr pos1 -- max span addr pos2 0 ) |
: xtab-expand ( max span addr pos1 -- max span addr pos2 0 ) |
key? IF #tab (u8ins) 0 EXIT THEN |
key? IF #tab (xins) 0 EXIT THEN |
u8kill-expand 2dup extract-word dup 0= IF nip EXIT THEN |
xkill-expand 2dup extract-word dup 0= IF nip EXIT THEN |
search-prefix tib-full? |
search-prefix tib-full? |
IF 7 emit 2drop prefix-off |
IF bell 2drop prefix-off |
ELSE dup >r |
ELSE dup >r |
2>r >string r@ + 2r> 2swap insert |
2>r >string r@ + 2r> 2swap insert |
r@ + rot r> + -rot |
r@ + rot r> + -rot |
THEN |
THEN |
prefix-found @ IF bl (u8ins) ELSE .all .rest THEN 0 ; |
prefix-found @ IF bl (xins) ELSE .all .rest THEN 0 ; |
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: utf-8-io ( -- ) |
: xchar-history ( -- ) |
['] u8forw ctrl F bindkey |
['] xforw ctrl F bindkey |
['] u8back ctrl B bindkey |
['] xback ctrl B bindkey |
['] ?u8del ctrl H bindkey |
['] ?xdel ctrl H bindkey |
['] u8eof ctrl D bindkey |
['] xeof ctrl D bindkey |
['] <u8del> ctrl X bindkey |
['] <xdel> ctrl X bindkey |
['] u8clear-tib ctrl K bindkey |
['] xclear-tib ctrl K bindkey |
['] u8first-pos ctrl A bindkey |
['] xfirst-pos ctrl A bindkey |
['] u8end-pos ctrl E bindkey |
['] xend-pos ctrl E bindkey |
['] (u8enter) #lf bindkey |
history IF ['] (xenter) #lf bindkey THEN |
['] (u8enter) #cr bindkey |
history IF ['] (xenter) #cr bindkey THEN |
['] u8tab-expand #tab bindkey |
['] xtab-expand #tab bindkey |
['] (u8ins) IS insert-char |
['] (xins) IS insert-char |
['] kill-prefix IS everychar |
['] kill-prefix IS everychar |
['] save-cursor IS everyline |
['] save-cursor IS everyline |
['] u8key IS key |
['] xback-restore IS back-restore |
['] u8emit IS emit ; |
['] xcur-correct IS cur-correct |
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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 |
xchar-history |
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\ initializing history |
\ initializing history |
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Line 348 utf-8-cold
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Line 333 utf-8-cold
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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 363 utf-8-cold
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Line 348 utf-8-cold
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; |
; |
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: history-cold ( -- ) |
: history-cold ( -- ) |
history-file get-history ; |
history-file get-history xchar-history ; |
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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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' history-cold INIT8 chained |
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history-cold |
history-cold |
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