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VE: add command 'f'

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Kinda proud of this one. Efficiently piggy-backing on the Block
Editor, keeping things simple, and yet, building power into the
editor.
This commit is contained in:
Virgil Dupras 2020-06-06 21:46:46 -04:00
parent 204a66277e
commit b22ab8437b
7 changed files with 24 additions and 12 deletions
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11
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@ -6,8 +6,11 @@
'I', 'F' and 'E' invoke the corresponding command from the
Block Editor (B100). Refer to documentation there.
'X' deletes "modifier" characters following cursor.
'f' puts the contents of your previous cursor movement into the
find buffer. If that movement was a forward movement, it brings
the cursor back where it was. This allows for an efficient
combination of movements and 'E'. For example, if you want to
delete the next word, you type 'w', then 'f', then check your
"F" buffer to be sure, then press 'E'.
'R' goes into replace mode at current cursor position.
Following keystrokes replace current character and advance
cursor. Press return to return to normal mode.
'X' deletes "modifier" characters following cursor. (cont.)

4
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@ -0,0 +1,4 @@
'R' goes into replace mode at current cursor position.
Following keystrokes replace current character and advance
cursor. Press return to return to normal mode.

3
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@ -1,4 +1,5 @@
CREATE CMD 2 C, '$' C, 0 C,
VARIABLE PREVPOS
: 0acc 0 ACC ! ;
: acc@ ACC @ 1 MAX 0acc ;
: num ACC @ SWAP _pdacc IF DROP ELSE ACC ! THEN ;
@ -10,3 +11,5 @@ CREATE CMD 2 C, '$' C, 0 C,
: contents 3 aty BLK> @ LIST ;
: selblk BLK@ contents ;
: mode! ( c -- ) 63 0 AT-XY ;
: pos! EDPOS @ PREVPOS !
1023 MIN DUP 0< IF DROP 0 THEN EDPOS ! ;

3
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@ -1,7 +1,6 @@
: setpos EDPOS @ 64 /MOD
3 + ( header ) SWAP 3 + ( gutter ) SWAP AT-XY ;
: pos+ EDPOS @ + 1024 MOD EDPOS ! ;
: cmv ( n -- , char movement ) acc@ * pos+ ;
: cmv ( n -- , char movement ) acc@ * EDPOS @ + pos! ;
: $; 0acc ;
: $g ACC @ selblk 0acc ;
: $[ BLK> @ acc@ - selblk ;

9
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@ -1,13 +1,12 @@
: _pos! 1023 MIN DUP 0< IF DROP 0 THEN EDPOS ! ;
: $w EDPOS @ BLK( + acc@ 0 DO
BEGIN C@+ WS? UNTIL BEGIN C@+ WS? NOT UNTIL LOOP
1- BLK( - _pos! ;
1- BLK( - pos! ;
: $W EDPOS @ BLK( + acc@ 0 DO
1+ BEGIN C@+ WS? NOT UNTIL BEGIN C@+ WS? UNTIL LOOP
2- BLK( - _pos! ;
2- BLK( - pos! ;
: $b EDPOS @ BLK( + acc@ 0 DO
1- BEGIN C@- WS? NOT UNTIL BEGIN C@- WS? UNTIL LOOP
2+ BLK( - _pos! ;
2+ BLK( - pos! ;
: $B EDPOS @ BLK( + acc@ 0 DO
BEGIN C@- WS? UNTIL BEGIN C@- WS? NOT UNTIL LOOP
1+ BLK( - _pos! ;
1+ BLK( - pos! ;

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@ -1,3 +1,7 @@
: $f EDPOS @ PREVPOS @ 2DUP = IF 2DROP EXIT THEN
2DUP > IF DUP pos! SWAP THEN
( p1 p2, p1 < p2 ) OVER - ( pos len ) FBUF _zbuf
SWAP _cpos FBUF ( len src dst ) ROT MOVE ;
: $R ( replace mode )
mode! 'R' EMIT
BEGIN setpos C< DUP 0xd = NOT IF

2
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@ -7,7 +7,7 @@
2 aty ." F: " FBUF bufp ;
: c<over KEY DUP EMIT DUP 0x0a = IF DROP 0x0d THEN ;
: VE ['] c<over 0x08 ( C< override ) RAM+ !
clrscr 0acc 0 EDPOS ! contents
clrscr 0acc 0 EDPOS ! 0 PREVPOS ! contents
BEGIN status bufs setpos KEY handle UNTIL
0 0x08 RAM+ ! 19 aty ;