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| require utf-8.fs |
require utf-8.fs |
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[IFUNDEF] #esc 27 Constant #esc [THEN] |
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: save-cursor ( -- ) #esc emit '7 emit ; |
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: restore-cursor ( -- ) #esc emit '8 emit ; |
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: .rest ( addr pos1 -- addr pos1 ) |
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restore-cursor 2dup type ; |
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: .all ( span addr pos1 -- span addr pos1 ) |
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restore-cursor >r 2dup swap type r> ; |
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: <u8ins> ( max span addr pos1 u8char -- max span addr pos2 ) |
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>r 2over r@ u8len + u< IF rdrop bell EXIT THEN |
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>string over r@ u8len + swap move 2dup chars + r@ swap u8!+ drop |
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r> u8len >r rot r@ chars + -rot r> chars + ; |
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: (u8ins) ( max span addr pos1 u8char -- max span addr pos2 ) |
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<u8ins> .all .rest ; |
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: u8back ( max span addr pos1 -- max span addr pos2 f ) |
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dup IF over + u8<< over - 0 max .all .rest |
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ELSE bell THEN 0 ; |
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: u8forw ( max span addr pos1 -- max span addr pos2 f ) |
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2 pick over <> IF over + u8@+ u8emit over - ELSE bell THEN 0 ; |
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: (u8del) ( max span addr pos1 -- max span addr pos2 ) |
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over + dup u8<< tuck - >r over - |
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>string over r@ + -rot move |
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rot r> - -rot ; |
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: ?u8del ( max span addr pos1 -- max span addr pos2 0 ) |
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dup IF (u8del) .all 2 spaces .rest THEN 0 ; |
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: <u8del> ( max span addr pos1 -- max span addr pos2 0 ) |
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2 pick over <> |
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IF u8forw drop (u8del) .all 2 spaces .rest |
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ELSE bell THEN 0 ; |
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: u8eof 2 pick over or 0= IF bye ELSE <u8del> THEN ; |
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: u8first-pos ( max span addr pos1 -- max span addr 0 0 ) |
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drop 0 .all .rest 0 ; |
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: u8end-pos ( max span addr pos1 -- max span addr span 0 ) |
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drop over .all 0 ; |
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: u8clear-line ( max span addr pos1 -- max addr ) |
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drop restore-cursor swap spaces restore-cursor ; |
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: u8clear-tib ( max span addr pos -- max 0 addr 0 false ) |
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u8clear-line 0 tuck dup ; |
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: (u8enter) ( 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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: u8kill-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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: 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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: u8tab-expand ( max span addr pos1 -- max span addr pos2 0 ) |
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key? IF #tab (u8ins) 0 EXIT THEN |
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u8kill-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 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 (u8ins) ELSE .all .rest THEN 0 ; |
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: utf-8-io ( -- ) |
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['] u8forw ctrl F bindkey |
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['] u8back ctrl B bindkey |
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['] ?u8del ctrl H bindkey |
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['] u8eof ctrl D bindkey |
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['] <u8del> ctrl X bindkey |
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['] u8clear-tib ctrl K bindkey |
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['] u8first-pos ctrl A bindkey |
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['] u8end-pos ctrl E bindkey |
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['] (u8enter) #lf bindkey |
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['] (u8enter) #cr bindkey |
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['] u8tab-expand #tab bindkey |
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['] (u8ins) IS insert-char |
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['] kill-prefix IS everychar |
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['] save-cursor IS everyline |
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['] u8key IS key |
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['] u8emit IS emit ; |
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| : utf-8-cold ( -- ) |
: utf-8-cold ( -- ) |
| s" LANG" getenv s" .UTF-8" search nip nip |
s" LANG" getenv s" .UTF-8" search nip nip |
| IF utf-8-io ELSE 8-bit-io THEN ; |
IF utf-8-io ELSE 8-bit-io THEN ; |
