A2osX/BIN/EDIT.S.txt

NEW
  AUTO 3,1
				.LIST OFF
				.OP	65C02
				.OR	$2000
				.TF BIN/EDIT
*--------------------------------------
				.INB INC/MACROS.I
				.INB INC/A2OSX.I
				.INB INC/MLI.I
*--------------------------------------
				.DUMMY
				.OR ZPBIN
ZS.START
BufPtr			.BS 2
BufPtrBackup	.BS 2
ClipboardPtr	.BS 2
LineBufPtr		.BS 2

BUF.LOffset		.BS 2
BUF.COffset		.BS 2
BUF.TmpLine1	.BS 2
BUF.TmpLine2	.BS 2

BufLen			.BS 2
SelLen			.BS 2
TmpLen			.BS 2
TmpIndex		.BS 2

ZPPTR1			.BS 2

TmpCount		.BS 1
TmpByte			.BS 1
bNotRepaint		.BS 1
bSelected		.BS	1

ZS.END			.ED
*--------------------------------------
PromptBufMax	.EQ 64
*--------------------------------------
PromptModeHelp	.EQ 2
PromptModeFind	.EQ 4
PromptModeReplace	.EQ 6
PromptModeSave	.EQ 8
*--------------------------------------
*			File Header (16 Bytes)
*--------------------------------------
CS.START		cld
				jmp (.1,x)
				.DA #$61				6502,Level 1 (65c02)
				.DA #1					BIN Layout Version 1
				.DA #0
				.DA #0
				.DA CS.END-CS.START		CS
				.DA DS.END-DS.START		DS
				.DA #64					SS
				.DA #ZS.END-ZS.START	Zero Page Size
				.DA 0
*--------------------------------------
* Relocation Table
*--------------------------------------
.1				.DA CS.INIT
				.DA CS.RUN
				.DA CS.DOEVENT		
				.DA	CS.QUIT
L.SEQ.DETECT	.DA SEQ.DETECT
L.SEQ.INIT		.DA SEQ.INIT
L.SEQ.RESET		.DA SEQ.RESET
L.SEQ.SCROLLUP	.DA SEQ.SCROLLUP
L.SEQ.SCROLLDN	.DA SEQ.SCROLLDN
L.SEQ.CEOL		.DA SEQ.CEOL
L.SEQ.BAR		.DA SEQ.BAR
L.MSG.TOPBAR	.DA MSG.TOPBAR
L.MSG.STATUSBAR	.DA MSG.STATUSBAR
				.DA MSG.STATUSBAR.H
				.DA MSG.STATUSBAR.F
				.DA MSG.STATUSBAR.R
				.DA MSG.STATUSBAR.S
				.DA MSG.STATUSBAR.E
L.MSG.NEWFILE	.DA MSG.NEWFILE
L.MSG.GOTOXY	.DA MSG.GOTOXY
L.MSG.HELPLINE	.DA MSG.HELPLINE
L.MSG.HELP		.DA MSG.HELP
J.PROMPT		.DA Prompt.Editor
				.DA Prompt.Help
				.DA Prompt.Find
				.DA Prompt.Replace
				.DA Prompt.Save
J.CTRL			.DA Ctrl.Invalid
				.DA Ctrl.A
				.DA Ctrl.B
				.DA Ctrl.C
				.DA Ctrl.D
				.DA Ctrl.E
				.DA Ctrl.F
				.DA Ctrl.G
				.DA Ctrl.BS
				.DA Ctrl.TAB
				.DA Ctrl.LF
				.DA Ctrl.VT
				.DA Ctrl.L
				.DA Ctrl.CR
				.DA Ctrl.N
				.DA Ctrl.O
				.DA Ctrl.P
				.DA Ctrl.Q
				.DA Ctrl.R
				.DA Ctrl.S
				.DA Ctrl.T
				.DA Ctrl.FS
				.DA Ctrl.V
				.DA Ctrl.W
				.DA Ctrl.X
				.DA Ctrl.Y
				.DA Ctrl.Z
				.DA Ctrl.Invalid
				.DA Ctrl.Invalid
				.DA Ctrl.Invalid
				.DA Ctrl.Invalid
				.DA Ctrl.Invalid
				.DA 0
*--------------------------------------
CS.INIT			clc
				rts
*--------------------------------------
CS.RUN			>PUSHBI 0
				>LDYA L.SEQ.DETECT
				>SYSCALL printf			Send Query for term W & H
				bcs CS.RUN.RTS

.1				>SYSCALL GetChar
				bcs CS.RUN.RTS

				jsr CharIn
				>LDA.G ScreenW			Wait for Response from terminal for W & H
				beq .1

				lda #1
				>SYSCALL ArgV
				bcs .2					No arg, new file....
				>SYSCALL RealPath
				txa
				>STA.G hFileName
				jsr LoadFile
				bcc .3					if CS, Failed to load file, keep name, but new file....

				cmp #E.OOM
				beq CS.RUN.RTS

.2				>LDYAI 1				buffer size = 0 (+ 1 for ending 0)
				>SYSCALL GetMem0
				bcs CS.RUN.RTS

				txa
				>STA.G hBuffer			BufLen already set to 0

.3				lda #$ff
				>STA.G bSaved

				jsr SCRN.Init
				bcs CS.RUN.RTS

CS.RUN.LOOP		>SYSCALL GetChar
				bcs CS.RUN.RTS			I/O error
				jsr CharIn
				bcs .9

				>LDA.G bCancel
				bpl CS.RUN.LOOP
	
				lda #0

.9				pha
				>PUSHBI 0
				>LDYA L.SEQ.RESET
				>SYSCALL printf
				pla
				sec
CS.RUN.RTS		rts
*--------------------------------------
CS.DOEVENT		sec
				rts
*--------------------------------------
CS.QUIT			ldy #hLineBuffer
				jsr .8

				ldy #hBuffer
				jsr .8
				ldy #hBufferBackup
				jsr .8
				ldy #hClipBoard
				jsr .8

				ldy #hFileName
.8				lda (pData),y
				beq .9
				>SYSCALL FreeMem
.9				clc
				rts
*--------------------------------------
CharIn			tax

				>LDA.G bEscMode

				asl
				txa
				bcc .1					Not in ESC mode
				cmp #'['
				beq .8

				ldy #EscBuffer
				lda (pData),y
				inc
				sta (pData),y
				clc
				adc #EscBuffer
				tay
				txa
				sta (pData),y
				cmp #64

				bcc .8
				jsr CharIn.Esc
				bcs .8					Not translated, exit

.1				cmp #C.ESC
				bne .2

				lda #$ff
				>STA.G bEscMode
				inc
				>STA.G EscBuffer

.8				clc
				rts

.2				pha
				>LDA.G PromptMode
				tax
				pla
				jmp (J.PROMPT,x)
*--------------------------------------
CharIn.Esc		>STZ.G bEscMode

				ldy #EscBuffer
				lda (pData),y
				clc
				adc #EscBuffer
				tay
				lda (pData),y
				ldx EscChars

.1				cmp EscChars,x
				beq .2
				dex
				bne .1

				cmp #'R'				Response to cursor position query?
				beq .3

				sec
				rts

.2				lda EscAscii,x
				clc
				rts

.3				stz TmpByte

				ldy #EscBuffer+1

.4				lda (pData),y
				cmp #';'
				beq .5

				and #$0f
				pha
				lda TmpByte
				asl
				asl
				clc
				adc TmpByte
				asl
				sta TmpByte
				pla
				clc
				adc TmpByte
				sta TmpByte
				iny
				bra .4

.5				phy

				lda TmpByte
				>STA.G ScreenH

				dec						Remove 2 (top & status bar) for viewportH
				dec

				>STA.G ViewPortH

				dec

				>STA.G ViewPortHm1		Remove 1 more to store offsert to last line of viewport

				ply
				stz TmpByte

				iny
				
.6				lda (pData),y
				cmp #'R'
				beq .7

				and #$0f
				pha
				lda TmpByte
				asl
				asl
				clc
				adc TmpByte
				asl
				sta TmpByte
				pla
				clc
				adc TmpByte
				sta TmpByte
				iny
				bra .6

.7				lda TmpByte
				>STA.G  ScreenW

				sec
				rts
*--------------------------------------
LoadFile		>PUSHWZ				Aux type
				>PUSHBI S.FI.T.TXT
				>PUSHBI	O.RDONLY
				>LDA.G hFileName
				>SYSCALL GetMemPtr
				>SYSCALL LoadTXTFile
				bcs .9

				txa
				>STA.G hBuffer

				>SYSCALL GetMemPtr
				>STYA BufPtr
				>STYA BufPtrBackup
				stz BufLen
				stz BufLen+1

				ldy #0

				ldx #0
				
.1				lda (BufPtrBackup),y
				beq .8

				cpx #C.CR
				bne .2
				
				cmp #C.LF
				beq .5

.2				cmp #C.SPACE
				bcs .3

				cmp #C.CR
				bne .5

.3				sta (BufPtr)
				inc BufPtr
				bne .4
				inc BufPtr+1
.4				inc BufLen
				bne .5
				inc BufLen+1

.5				tax						set previous char
				iny
				bne .1

				inc BufPtrBackup+1
				bra .1

.8				sta (BufPtr)
				clc
.9				jmp BUF.ResetSel
*--------------------------------------
SaveFile		>PUSHWZ					Aux type
				>PUSHBI S.FI.T.TXT
				>PUSHBI	O.CREATE+O.WRONLY
				>LDA.G hFileName
				>SYSCALL GetMemPtr

				>SYSCALL FOpen
				bcs .9
				pha
				>PUSHW BufLen
				>LDA.G hBuffer
				>SYSCALL GetMemPtr
				>PUSHYA
				pla
				pha
			
				>SYSCALL FWrite
				bcc .1

				tax
				pla
				phx
				>SYSCALL FClose
				pla
				sec
				rts

.1				pla
				>SYSCALL FClose
				
				lda #$80
				>STA.G bSaved
				jsr SCRN.UpdateTopBar
.9				rts
*--------------------------------------
				.INB USR/SRC/BIN/EDIT.S.BUF
				.INB USR/SRC/BIN/EDIT.S.CTRL
				.INB USR/SRC/BIN/EDIT.S.SCRN
*--------------------------------------
CS.END
SEQ.DETECT		.AZ "Querying terminal capabilities...\e[999;999H\e[6n"
SEQ.INIT		.AZ "\ec\e[?7l\e[2;%dr"
SEQ.RESET		.AZ "\ec"
SEQ.SCROLLUP	.AZ "\e[%d;%dH\eD"
SEQ.SCROLLDN	.AZ "\e[%d;%dH\eM"
SEQ.BAR			.AS "\e[40;37m\e[7m%s"		+SEQ.NORM
SEQ.NORM		.AZ "\e[0m"
SEQ.INV			.AZ "\e[7m"
SEQ.EDIT		.AS "\e[93;44m"				+SEQ.CEOL
SEQ.CEOL		.AZ "\e[K"
MSG.TOPBAR		.AZ "A2osX Edit:%s"
MSG.STATUSBAR	.AZ "(Press Ctrl-A For Help) Len: %5D Pos: %5D Col: %3d  Line: %5D"
MSG.STATUSBAR.H	.AZ "Press any key to exit this screen:"
MSG.STATUSBAR.F	.AZ "Find:%s"
MSG.STATUSBAR.R	.AZ "Replace:%s"
MSG.STATUSBAR.S	.AZ "Save (Ctrl-C):%s"
MSG.STATUSBAR.E	.AZ "Error:%h"
MSG.GOTOXY		.AZ "\e[%d;%dH"
MSG.HELPLINE	.AZ "\e[93;44m%S\e[K"
MSG.HELP		>PSTR "All commands: (* = Not yet implemented)"
				>PSTR "------------"
				>PSTR "  Ctrl-A : This help screen"
				>PSTR "  Ctrl-B : Mark beginning of selection"
				>PSTR "  Ctrl-C : Copy selection to clipboard"
				>PSTR "  Ctrl-D : Delete selection"
				>PSTR "  Ctrl-E : Mark end of selection"
				>PSTR "  Ctrl-F : * Find a string..."
				>PSTR "  Ctrl-G : Go to start of current line"
				>PSTR "  Ctrl-L : Go to end of current line"
				>PSTR "  Ctrl-N : * Find next"
				>PSTR "  Ctrl-O : Page up"
				>PSTR "  Ctrl-P : Page down"
				>PSTR "  Ctrl-Q : Quit"
				>PSTR "  Ctrl-R : * Replace found string with..."
				>PSTR "  Ctrl-S : Save file to disk..."
				>PSTR "  Ctrl-T : Go to top of file"
				>PSTR "  Ctrl-V : Past clipboard at cursor position"
				>PSTR "  Ctrl-W : Erase current line"
				>PSTR "  Ctrl-X : Cut block to clipboard"
				>PSTR "  Ctrl-Y : Go to end of file"
				>PSTR "  Ctrl-Z : Erase char under cursor"
				.HS 00
*--------------------------------------
MSG.NEWFILE		.AZ "(new file)"
EscChars		>PSTR "DBAC"
EscAscii		.HS 04080A0B15
*--------------------------------------
				.DUMMY
				.OR 0
DS.START
PromptBuf		.BS PromptBufMax+1
PromptBufPtr	.BS 1
PromptMode		.BS 1
bCancel			.BS 1
bSaved			.BS 1
bEscMode		.BS 1
EscBuffer		.BS 16
hFileName		.BS 1
hFind			.BS 1
hReplace		.BS 1
hLineBuffer		.BS 1
hBuffer			.BS 1
hBufferBackup	.BS 1
hClipBoard		.BS 1
ClipBoardLen	.BS 2
ScreenW			.BS 1
ScreenH			.BS 1
ViewPortH		.BS 1
ViewPortHm1		.BS 1
ScreenX			.BS 1
ScreenY			.BS 2
CurX			.BS 1
CurY			.BS 1
FileX			.BS 1
FileY			.BS 2
SelStart		.BS 2
SelEnd			.BS 2
DS.END
				.ED
*--------------------------------------
MAN
SAVE USR/SRC/BIN/EDIT.S
ASM