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54bc2e4b96 |
@ -64,3 +64,9 @@ and make post-collapse users much happier.
|
|||||||
It is frequently asked by would-be contributors whether I have tips for an
|
It is frequently asked by would-be contributors whether I have tips for an
|
||||||
optimal ramping up of skills. [I've put together a little document to answer
|
optimal ramping up of skills. [I've put together a little document to answer
|
||||||
that question](https://collapseos.org/skills.html).
|
that question](https://collapseos.org/skills.html).
|
||||||
|
|
||||||
|
## No typo pull requests please
|
||||||
|
|
||||||
|
Please, don't open pull requests to fix typos. See [issue #3][GH-3] for details.
|
||||||
|
|
||||||
|
[GH-3]: https://github.com/hsoft/collapseos/pull/3
|
||||||
|
4
blk/000
4
blk/000
@ -12,5 +12,5 @@ block, it means that the next block continues the same kind of
|
|||||||
contents. Block numbers are abbreviated with prefix "B". "BX"
|
contents. Block numbers are abbreviated with prefix "B". "BX"
|
||||||
means "block X".
|
means "block X".
|
||||||
|
|
||||||
The master index of this filesystem is at B1. The Block editor
|
The master index of this filesystem is at B1. You can navi-
|
||||||
at B100 is a convenient way to navigate blocks.
|
gate and edit blocks with the Visual Editor at B120.
|
||||||
|
4
blk/003
4
blk/003
@ -12,5 +12,5 @@ Contents
|
|||||||
|
|
||||||
5 Number literals 6 Compilation vs meta-comp.
|
5 Number literals 6 Compilation vs meta-comp.
|
||||||
8 Interpreter I/O 11 Signed-ness
|
8 Interpreter I/O 11 Signed-ness
|
||||||
14 Addressed devices 17 DOES>
|
17 DOES> 18 Disk blocks
|
||||||
18 Disk blocks (cont.)
|
(cont.)
|
||||||
|
6
blk/005
6
blk/005
@ -1,8 +1,8 @@
|
|||||||
Number literals
|
Number literals
|
||||||
|
|
||||||
Traditional Forth often use HEX/DEC switches to go from decimal
|
Traditional Forth often uses HEX/DEC switches to go from deci-
|
||||||
to hexadecimal parsing. Collapse OS parses literals in a way
|
mal to hexadecimal parsing. Collapse OS parses literals in a
|
||||||
that is closer to C.
|
way that is closer to C.
|
||||||
|
|
||||||
Straight numbers are decimals, numbers starting with "0x"
|
Straight numbers are decimals, numbers starting with "0x"
|
||||||
are hexadecimals (example "0x12ef"), "0b" prefixes indicate
|
are hexadecimals (example "0x12ef"), "0b" prefixes indicate
|
||||||
|
6
blk/006
6
blk/006
@ -1,8 +1,8 @@
|
|||||||
Compilation vs meta-compilation
|
Compilation vs meta-compilation
|
||||||
|
|
||||||
Compilation vs meta-compilation. When you compile a word with
|
Compilation vs meta-compilation. When you compile a word with
|
||||||
"[COMPILE] foo", its straightforward: It writes down to HERE
|
"[COMPILE] foo", it's straightforward: It writes the address
|
||||||
wither the address of the word or a number literal.
|
of word foo to HERE.
|
||||||
|
|
||||||
When you *meta* compile, it's a bit more mind blowing. It
|
When you *meta* compile, it's a bit more mind blowing. It
|
||||||
fetches the address of the word specified by the caller, then
|
fetches the address of the word specified by the caller, then
|
||||||
@ -12,5 +12,3 @@ writes that number as a literal, followed by a reference to
|
|||||||
Example: ": foo [COMPILE] bar;" is the equivalent of ": foo bar
|
Example: ": foo [COMPILE] bar;" is the equivalent of ": foo bar
|
||||||
;" if bar is not an immediate. However, ": foo COMPILE bar ;"
|
;" if bar is not an immediate. However, ": foo COMPILE bar ;"
|
||||||
is the equivalent of ": foo ['] bar , ;". Got it?
|
is the equivalent of ": foo ['] bar , ;". Got it?
|
||||||
|
|
||||||
Meta-compile only works with real words, not number literals.
|
|
||||||
|
2
blk/008
2
blk/008
@ -8,7 +8,7 @@ During normal operations, C< is simply a buffered layer over
|
|||||||
KEY, which has the same behavior (but unbuffered). Before
|
KEY, which has the same behavior (but unbuffered). Before
|
||||||
yielding any character, the C< routine fetches a whole line
|
yielding any character, the C< routine fetches a whole line
|
||||||
from KEY, puts it in a buffer, then yields the buffered line,
|
from KEY, puts it in a buffer, then yields the buffered line,
|
||||||
one character at once.
|
one character at a time.
|
||||||
|
|
||||||
Both C< and KEY can be overridden by setting an alternate
|
Both C< and KEY can be overridden by setting an alternate
|
||||||
routine at the proper RAM offset (see B80). For example, C<
|
routine at the proper RAM offset (see B80). For example, C<
|
||||||
|
16
blk/014
16
blk/014
@ -1,16 +0,0 @@
|
|||||||
Addressed devices
|
|
||||||
|
|
||||||
The adev unit provides a simple but powerful abstraction over
|
|
||||||
C@ and C!: A@ and A!. These work the same way as C@ and C! (but
|
|
||||||
for performance reasons, aren't used in core words), but are
|
|
||||||
indirect calls.
|
|
||||||
|
|
||||||
Upon initialization, the default to C@ and C!, but can be set
|
|
||||||
to any word through A@* and A!*.
|
|
||||||
|
|
||||||
On top of that, it provides a few core-like words such as
|
|
||||||
AMOVE.
|
|
||||||
|
|
||||||
Let's demonstrate its use through a toy example:
|
|
||||||
|
|
||||||
(cont.)
|
|
16
blk/015
16
blk/015
@ -1,16 +0,0 @@
|
|||||||
(cont.)
|
|
||||||
> : F! SWAP 1 + SWAP C! ;
|
|
||||||
> 8 H@ DUMP
|
|
||||||
:54 0000 0000 0000 0000 ........
|
|
||||||
> 9 H@ A!
|
|
||||||
> 8 H@ DUMP
|
|
||||||
:54 0900 0000 0000 0000 ........
|
|
||||||
> ' F! A!* !
|
|
||||||
> 9 H@ 1 + A!
|
|
||||||
> 8 H@ DUMP
|
|
||||||
:54 090a 0000 0000 0000 ........
|
|
||||||
> H@ H@ 2 + 2 AMOVE
|
|
||||||
> 8 H@ DUMP
|
|
||||||
:54 090a 0a0b 0000 0000 ........
|
|
||||||
>
|
|
||||||
(cont.)
|
|
16
blk/016
16
blk/016
@ -1,16 +0,0 @@
|
|||||||
(cont.) Of course, you might want to end up using adev in this
|
|
||||||
kind of ad-hoc way to have some kind of mapping function, but
|
|
||||||
what you'll mostly want to to is to plug device drivers into
|
|
||||||
those words.
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
2
blk/017
2
blk/017
@ -2,7 +2,7 @@ DOES>
|
|||||||
|
|
||||||
Used inside a colon definition that itself uses CREATE, DOES>
|
Used inside a colon definition that itself uses CREATE, DOES>
|
||||||
transforms that newly created word into a "does cell", that is,
|
transforms that newly created word into a "does cell", that is,
|
||||||
a regular cell ( when called, puts the cell's addr on PS), but
|
a regular cell (when called, puts the cell's addr on PS), but
|
||||||
right after that, it executes words that appear after the
|
right after that, it executes words that appear after the
|
||||||
DOES>.
|
DOES>.
|
||||||
|
|
||||||
|
2
blk/100
2
blk/100
@ -1,7 +1,7 @@
|
|||||||
Block editor
|
Block editor
|
||||||
|
|
||||||
This is an application to conveniently browse the contents of
|
This is an application to conveniently browse the contents of
|
||||||
the disk blocks and edit them. You can load it with "102 LOAD".
|
the disk blocks and edit them. You can load it with "105 LOAD".
|
||||||
|
|
||||||
Browse mode: If you execute BROWSE, the Forth interpreter is
|
Browse mode: If you execute BROWSE, the Forth interpreter is
|
||||||
replaced by browser's loop. Typing "Q" quits the browser.
|
replaced by browser's loop. Typing "Q" quits the browser.
|
||||||
|
30
blk/101
30
blk/101
@ -1,16 +1,16 @@
|
|||||||
|
There are two buffers, IBUF (insert buffer) and FBUF (find
|
||||||
|
buffer). They are used as a typing target for the actions
|
||||||
|
described below. They both have a peculiar logic: when typing
|
||||||
|
is expected to fill a buffer, an empty value means "reuse
|
||||||
|
previous value". For example, typing "I foo I " inserts
|
||||||
|
"foofoo".
|
||||||
|
|
||||||
T ( n -- ): select line n for editing.
|
T ( n -- ): select line n for editing.
|
||||||
P xxx: put typed line on selected line.
|
P xxx: put typed IBUF on selected line.
|
||||||
U xxx: insert typed line on selected line.
|
U xxx: insert typed IBUF on selected line.
|
||||||
F xxx: find typed string in block.
|
F xxx: find typed FBUF in block, starting from current
|
||||||
I xxx: insert typed string at cursor.
|
position+1. If not found, don't move.
|
||||||
E: Delete previously found string.
|
I xxx: insert typed IBUF at cursor. "I" shadows core word. Use
|
||||||
|
"i" to access it.
|
||||||
Note that "I" shadows core word. Use "i" to access core word.
|
X ( n -- ): Delete X chars after cursor and place in IBUF.
|
||||||
|
E: Run X with n = length of FBUF.
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
14
blk/102
14
blk/102
@ -1,14 +0,0 @@
|
|||||||
'? CASE NOT [IF] 51 52 LOADR+ [THEN] DROP ( B152-153 )
|
|
||||||
'? FILL NOT [IF] 53 LOAD+ [THEN] DROP ( B155 )
|
|
||||||
1 7 LOADR+
|
|
||||||
: BROWSE
|
|
||||||
0 ACC ! L
|
|
||||||
BEGIN
|
|
||||||
KEY CASE
|
|
||||||
'Q' OF EXIT ENDOF
|
|
||||||
'B' OF B ENDOF
|
|
||||||
'N' OF N ENDOF
|
|
||||||
_NUM
|
|
||||||
ENDCASE
|
|
||||||
AGAIN
|
|
||||||
;
|
|
16
blk/103
16
blk/103
@ -1,16 +0,0 @@
|
|||||||
CREATE ACC 0 ,
|
|
||||||
: _LIST ." Block " DUP . NL LIST ;
|
|
||||||
: _NUM
|
|
||||||
ACC @ SWAP _pdacc
|
|
||||||
IF _LIST 0 THEN
|
|
||||||
ACC !
|
|
||||||
;
|
|
||||||
: L BLK> @ _LIST ;
|
|
||||||
: B BLK> @ 1- BLK@ L ;
|
|
||||||
: N BLK> @ 1+ BLK@ L ;
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
13
blk/104
13
blk/104
@ -1,13 +0,0 @@
|
|||||||
( Cursor position in buffer. EDPOS/64 is line number )
|
|
||||||
CREATE EDPOS 0 ,
|
|
||||||
CREATE IBUF 64 ALLOT0
|
|
||||||
CREATE FBUF 64 ALLOT0
|
|
||||||
: _cpos BLK( + ;
|
|
||||||
: _lpos 64 * _cpos ;
|
|
||||||
: _pln ( lineno -- )
|
|
||||||
DUP _lpos DUP 64 + SWAP DO ( lno )
|
|
||||||
I EDPOS @ _cpos = IF '^' EMIT THEN
|
|
||||||
I C@ DUP 0x20 < IF DROP 0x20 THEN
|
|
||||||
EMIT
|
|
||||||
LOOP ( lno ) 1+ . ;
|
|
||||||
: _zbuf 64 0 FILL ; ( buf -- )
|
|
26
blk/105
26
blk/105
@ -1,12 +1,14 @@
|
|||||||
: _type ( buf -- )
|
'? CASE NOT [IF] 48 49 LOADR+ [THEN] DROP ( B153-154 )
|
||||||
C< DUP 0xd = IF 2DROP EXIT THEN SWAP DUP _zbuf ( c a )
|
'? FILL NOT [IF] 50 LOAD+ [THEN] DROP ( B155 )
|
||||||
BEGIN ( c a ) C!+ C< TUCK 0x0d = UNTIL ( c a ) C! ;
|
1 7 LOADR+
|
||||||
( user-facing lines are 1-based )
|
: BROWSE
|
||||||
: T 1- DUP 64 * EDPOS ! _pln ;
|
0 ACC ! L
|
||||||
: P IBUF _type IBUF EDPOS @ _cpos 64 MOVE BLK!! ;
|
BEGIN
|
||||||
: _mvln+ ( ln -- move ln 1 line down )
|
KEY CASE
|
||||||
DUP 14 > IF DROP EXIT THEN
|
'Q' OF EXIT ENDOF
|
||||||
_lpos DUP 64 + 64 MOVE ;
|
'B' OF B ENDOF
|
||||||
: _mvln- ( ln -- move ln 1 line up )
|
'N' OF N ENDOF
|
||||||
DUP 14 > IF DROP 15 _lpos _zbuf
|
_NUM
|
||||||
ELSE 1+ _lpos DUP 64 - 64 MOVE THEN ;
|
ENDCASE
|
||||||
|
AGAIN
|
||||||
|
;
|
||||||
|
21
blk/106
21
blk/106
@ -1,5 +1,16 @@
|
|||||||
: _U ( U without P, used in VE )
|
CREATE ACC 0 ,
|
||||||
15 EDPOS @ 64 / - 0 DO
|
: _LIST ." Block " DUP . NL LIST ;
|
||||||
14 I - _mvln+
|
: _NUM
|
||||||
LOOP ;
|
ACC @ SWAP _pdacc
|
||||||
: U _U P ;
|
IF _LIST 0 THEN
|
||||||
|
ACC !
|
||||||
|
;
|
||||||
|
: L BLK> @ _LIST ;
|
||||||
|
: B BLK> @ 1- BLK@ L ;
|
||||||
|
: N BLK> @ 1+ BLK@ L ;
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
23
blk/107
23
blk/107
@ -1,10 +1,13 @@
|
|||||||
: _F ( F without _type and _pln. used in VE )
|
( Cursor position in buffer. EDPOS/64 is line number )
|
||||||
FBUF EDPOS @ _cpos ( a1 a2 )
|
CREATE EDPOS 0 ,
|
||||||
BEGIN
|
CREATE IBUF 64 ALLOT0
|
||||||
C@+ ROT ( a2+1 c2 a1 ) C@+ ROT ( a2+1 a1+1 c1 c2 )
|
CREATE FBUF 64 ALLOT0
|
||||||
= NOT IF DROP FBUF THEN ( a2 a1 )
|
: _cpos BLK( + ;
|
||||||
TUCK C@ 0xd = ( a1 a2 f1 )
|
: _lpos 64 * _cpos ;
|
||||||
OVER BLK) = OR ( a1 a2 f1|f2 )
|
: _pln ( lineno -- )
|
||||||
UNTIL ( a1 a2 )
|
DUP _lpos DUP 64 + SWAP DO ( lno )
|
||||||
DUP BLK) < IF BLK( - FBUF + -^ EDPOS ! ELSE DROP THEN ;
|
I EDPOS @ _cpos = IF '^' EMIT THEN
|
||||||
: F FBUF _type _F EDPOS @ 64 / _pln ;
|
I C@ DUP 0x20 < IF DROP 0x20 THEN
|
||||||
|
EMIT
|
||||||
|
LOOP ( lno ) 1+ . ;
|
||||||
|
: _zbuf 64 0 FILL ; ( buf -- )
|
||||||
|
27
blk/108
27
blk/108
@ -1,15 +1,12 @@
|
|||||||
: _blen ( buf -- length of str in buf )
|
: _type ( buf -- )
|
||||||
DUP BEGIN C@+ EOL? UNTIL -^ 1- ;
|
C< DUP 0xd = IF 2DROP EXIT THEN SWAP DUP _zbuf ( c a )
|
||||||
: _rbufsz ( size of linebuf to the right of curpos )
|
BEGIN ( c a ) C!+ C< TUCK 0x0d = UNTIL ( c a ) C! ;
|
||||||
EDPOS @ 64 MOD 63 -^ ;
|
( user-facing lines are 1-based )
|
||||||
: i COMPILE I ; IMMEDIATE ( save overshadowed )
|
: T 1- DUP 64 * EDPOS ! _pln ;
|
||||||
: _I ( I without _pln and _type. used in VE )
|
: P IBUF _type IBUF EDPOS @ _cpos 64 MOVE BLK!! ;
|
||||||
_rbufsz IBUF _blen 2DUP > IF
|
: _mvln+ ( ln -- move ln 1 line down )
|
||||||
TUCK - ( ilen chars-to-move )
|
DUP 14 > IF DROP EXIT THEN
|
||||||
SWAP EDPOS @ _cpos 2DUP + ( ctm ilen a a+ilen )
|
_lpos DUP 64 + 64 MOVE ;
|
||||||
3 PICK MOVE- ( ctm ilen )
|
: _mvln- ( ln -- move ln 1 line up )
|
||||||
NIP ( ilen )
|
DUP 14 > IF DROP 15 _lpos _zbuf
|
||||||
ELSE DROP ( ilen becomes rbuffsize )
|
ELSE 1+ _lpos DUP 64 - 64 MOVE THEN ;
|
||||||
THEN
|
|
||||||
DUP IBUF EDPOS @ _cpos ROT MOVE ( ilen ) EDPOS +! BLK!! ;
|
|
||||||
: I IBUF _type _I EDPOS @ 64 / _pln ;
|
|
||||||
|
14
blk/109
14
blk/109
@ -1,9 +1,5 @@
|
|||||||
: X ( len -- , delete len chars after curpos )
|
: _U ( U without P, used in VE )
|
||||||
EDPOS @ _cpos 2DUP + ( l a1 a1+l )
|
15 EDPOS @ 64 / - 0 DO
|
||||||
SWAP _rbufsz MOVE ( l )
|
14 I - _mvln+
|
||||||
( get to next line - l )
|
LOOP ;
|
||||||
DUP EDPOS @ 0xffc0 AND 0x40 + -^ _cpos ( l a )
|
: U _U P ;
|
||||||
SWAP 0 FILL
|
|
||||||
EDPOS @ 64 / _pln ;
|
|
||||||
: E FBUF _blen X ;
|
|
||||||
|
|
||||||
|
10
blk/110
Normal file
10
blk/110
Normal file
@ -0,0 +1,10 @@
|
|||||||
|
: _F ( F without _type and _pln. used in VE )
|
||||||
|
FBUF EDPOS @ _cpos 1+ ( a1 a2 )
|
||||||
|
BEGIN
|
||||||
|
C@+ ROT ( a2+1 c2 a1 ) C@+ ROT ( a2+1 a1+1 c1 c2 )
|
||||||
|
= NOT IF DROP FBUF THEN ( a2 a1 )
|
||||||
|
TUCK C@ 0xd = ( a1 a2 f1 )
|
||||||
|
OVER BLK) = OR ( a1 a2 f1|f2 )
|
||||||
|
UNTIL ( a1 a2 )
|
||||||
|
DUP BLK) < IF BLK( - FBUF + -^ EDPOS ! ELSE DROP THEN ;
|
||||||
|
: F FBUF _type _F EDPOS @ 64 / _pln ;
|
15
blk/111
Normal file
15
blk/111
Normal file
@ -0,0 +1,15 @@
|
|||||||
|
: _blen ( buf -- length of str in buf )
|
||||||
|
DUP BEGIN C@+ EOL? UNTIL -^ 1- ;
|
||||||
|
: _rbufsz ( size of linebuf to the right of curpos )
|
||||||
|
EDPOS @ 64 MOD 63 -^ ;
|
||||||
|
: i COMPILE I ; IMMEDIATE ( save overshadowed )
|
||||||
|
: _I ( I without _pln and _type. used in VE )
|
||||||
|
_rbufsz IBUF _blen 2DUP > IF
|
||||||
|
TUCK - ( ilen chars-to-move )
|
||||||
|
SWAP EDPOS @ _cpos 2DUP + ( ctm ilen a a+ilen )
|
||||||
|
3 PICK MOVE- ( ctm ilen )
|
||||||
|
NIP ( ilen )
|
||||||
|
ELSE DROP ( ilen becomes rbuffsize )
|
||||||
|
THEN
|
||||||
|
DUP IBUF EDPOS @ _cpos ROT MOVE ( ilen ) EDPOS +! BLK!! ;
|
||||||
|
: I IBUF _type _I EDPOS @ 64 / _pln ;
|
11
blk/112
Normal file
11
blk/112
Normal file
@ -0,0 +1,11 @@
|
|||||||
|
: icpy ( n -- copy n chars from cursor to IBUF )
|
||||||
|
IBUF _zbuf EDPOS @ _cpos IBUF ( n a buf ) ROT MOVE ;
|
||||||
|
: X ( n -- )
|
||||||
|
DUP icpy EDPOS @ _cpos 2DUP + ( n a1 a1+n )
|
||||||
|
SWAP _rbufsz MOVE ( n )
|
||||||
|
( get to next line - n )
|
||||||
|
DUP EDPOS @ 0xffc0 AND 0x40 + -^ _cpos ( n a )
|
||||||
|
SWAP 0 FILL
|
||||||
|
EDPOS @ 64 / _pln ;
|
||||||
|
: E FBUF _blen X ;
|
||||||
|
|
14
blk/120
14
blk/120
@ -2,15 +2,15 @@ Visual Editor
|
|||||||
|
|
||||||
This editor, unlike the Block Editor (B100), is grid-based
|
This editor, unlike the Block Editor (B100), is grid-based
|
||||||
instead of being command-based. It requires the AT-XY, COLS
|
instead of being command-based. It requires the AT-XY, COLS
|
||||||
and LINES words to be implemented.
|
and LINES words to be implemented. If you don't have those,
|
||||||
|
use the Block Editor.
|
||||||
|
|
||||||
It is loaded with "125 LOAD" and invoked with "VE". Note that
|
It is loaded with "125 LOAD" and invoked with "VE". Note that
|
||||||
this also fully loads the Block Editor (B100).
|
this also fully loads the Block Editor.
|
||||||
|
|
||||||
This editor uses 17 lines. The top line is the status line and
|
This editor uses 19 lines. The top line is the status line and
|
||||||
the 16 others are contents lines. The content shown is that
|
it's followed by 2 lines showing the contents of IBUF and
|
||||||
of the currently selected block.
|
FBUF (see B100). There are then 16 contents lines. The contents
|
||||||
|
shown is that of the currently selected block.
|
||||||
|
|
||||||
All keystrokes are directly interpreted by VE and have the
|
|
||||||
effect described below.
|
|
||||||
(cont.)
|
(cont.)
|
||||||
|
12
blk/121
12
blk/121
@ -1,3 +1,6 @@
|
|||||||
|
All keystrokes are directly interpreted by VE and have the
|
||||||
|
effect described below.
|
||||||
|
|
||||||
Pressing a 0-9 digit accumulates that digit into what is named
|
Pressing a 0-9 digit accumulates that digit into what is named
|
||||||
the "modifier". That modifier affects the behavior of many
|
the "modifier". That modifier affects the behavior of many
|
||||||
keystokes described below. The modifier starts at zero, but
|
keystokes described below. The modifier starts at zero, but
|
||||||
@ -5,12 +8,9 @@ most commands interpret a zero as a 1 so that they can have an
|
|||||||
effect.
|
effect.
|
||||||
|
|
||||||
'g' selects the block specified by the modifier as the current
|
'g' selects the block specified by the modifier as the current
|
||||||
block. Any change madde to the previously selected block is
|
block. Any change made to the previously selected block is
|
||||||
saved beforehand.
|
saved beforehand.
|
||||||
|
|
||||||
'[' and ']' advance the selected block by modifier.
|
'[' and ']' advances the selected block by "modifier".
|
||||||
|
|
||||||
';' resets the modifier. 'q' quits.
|
';' resets the modifier. 'q' quits. (cont.)
|
||||||
|
|
||||||
'h' and 'l' move the cursor by "modifier" characters. 'j' and
|
|
||||||
'k', by lines. (cont.)
|
|
||||||
|
12
blk/122
12
blk/122
@ -1,16 +1,16 @@
|
|||||||
|
'h' and 'l' move the cursor by "modifier" characters. 'j' and
|
||||||
|
'k', by lines.
|
||||||
|
|
||||||
'H' goes to the beginning of the line, 'L' to the end.
|
'H' goes to the beginning of the line, 'L' to the end.
|
||||||
|
|
||||||
'w' moves forward by a word. 'b' moves backward by a word.
|
'w' moves forward by "modifier" words. 'b' moves backward.
|
||||||
'W' moves to end-of-word. 'B' moves backward to end-of-word.
|
'W' moves to end-of-word. 'B', backwards.
|
||||||
|
|
||||||
'I', 'F' and 'E' invoke the corresponding command from the
|
'I', 'F', 'X' and 'E' invoke the corresponding command from the
|
||||||
Block Editor (B100). Refer to documentation there.
|
Block Editor (B100). Refer to documentation there.
|
||||||
|
|
||||||
'o' inserts a blank line after the cursor. 'O', before.
|
'o' inserts a blank line after the cursor. 'O', before.
|
||||||
|
|
||||||
'D' deletes "modifier" lines at the cursor.
|
'D' deletes "modifier" lines at the cursor.
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
(cont.)
|
(cont.)
|
||||||
|
14
blk/123
14
blk/123
@ -1,11 +1,9 @@
|
|||||||
'f' puts the contents of your previous cursor movement into the
|
'f' puts the contents of your previous cursor movement into
|
||||||
find buffer. If that movement was a forward movement, it brings
|
FBUF. If that movement was a forward movement, it brings the
|
||||||
the cursor back where it was. This allows for an efficient
|
cursor back where it was. This allows for an efficient combi-
|
||||||
combination of movements and 'E'. For example, if you want to
|
nation of movements and 'E'. For example, if you want to delete
|
||||||
delete the next word, you type 'w', then 'f', then check your
|
the next word, you type 'w', then 'f', then check your FBUF to
|
||||||
"F" buffer to be sure, then press 'E'.
|
be sure, then press 'E'.
|
||||||
|
|
||||||
'X' deletes "modifier" characters following cursor.
|
|
||||||
|
|
||||||
'R' goes into replace mode at current cursor position.
|
'R' goes into replace mode at current cursor position.
|
||||||
Following keystrokes replace current character and advance
|
Following keystrokes replace current character and advance
|
||||||
|
Loading…
Reference in New Issue
Block a user