mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-23 07:35:19 +00:00
585 lines
9.4 KiB
Plaintext
585 lines
9.4 KiB
Plaintext
NEW
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PREFIX
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AUTO 4,1
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.LIST OFF
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*--------------------------------------
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CL.PrintPrompt >LDYA L.ENV.PS1
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>SYSCALL GetEnv
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bcs .1
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>SYSCALL ExpandStr
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bcs .9
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phx
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pha
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>PUSHBI 0
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pla
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>SYSCALL printf
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pla
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>SYSCALL FreeMem
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.1 >PUSHBI 0
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>LDYA L.MSG.PROMPT
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>SYSCALL printf
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.9 rts
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*--------------------------------------
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CL.CHARIN tax
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>LDA.G bEscMode
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beq .13
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cpx #'['
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beq .9
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lda #0
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sta (pData),y Y=bEscMode
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txa
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ldx #EscChars.Cnt-1
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.17 cmp EscChars,x
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beq .18
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dex
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bpl .17
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clc
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rts
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.18 txa
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asl
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tax
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jmp (J.ESC,x)
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*--------------------------------------
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.13 cpx #C.SPACE
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bcc CL.CHARIN.CTRL
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.1 cpx #C.DEL
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bne .2
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jmp CL.DEL
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.2 jmp CL.Insert
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.9 clc
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rts
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*--------------------------------------
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CL.CHARIN.CTRL cpx #C.CR
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bne .10
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>PUSHBI 0
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>LDYA L.MSG.ECHOCRLF
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>SYSCALL printf
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lda #$ff
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>STA.G CL.bExec
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clc
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rts
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.10 cpx #C.ESC
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bne .11
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lda #$ff
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>STA.G bEscMode
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clc
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rts
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.11 cpx #3 Ctrl-C
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bne .12
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jmp CL.CLR
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.12 cpx #24 Ctrl-X
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bne .13
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jmp CL.SUPPR
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.13 clc
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rts
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*--------------------------------------
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CL.Insert >LDA.G CL.Len
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cmp #CL.MAX
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beq .9 Buffer full, discard...
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inc
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sta (pData),y
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pha
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.1 ply
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dey
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lda (ZPCLBuf),y Move from Ptr To end of buffer forward...
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iny
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sta (ZPCLBuf),y
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dey
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phy
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tya
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>CMP.G CL.Ptr
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bne .1
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ply Y=CL.Ptr
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* >LDA.G CL.Ptr
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txa
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sta (ZPCLBuf),y
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>LDA.G bREAD.S
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bpl .2
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ldx #'*'
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.2 txa
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>SYSCALL PutChar
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>INC.G CL.Ptr
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jmp CL.PrintEOL
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.9 clc
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rts
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*--------------------------------------
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CL.CLR lda (ZPCLBuf)
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beq CL.RESET.1
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.1 >LDA.G CL.Ptr
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>CMP.G CL.Len
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beq .2
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inc
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>STA.G CL.Ptr
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lda #C.FS
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>SYSCALL PutChar
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bra .1
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.2 ldy #0
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.3 lda #C.DEL
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sta (ZPCLBuf),y
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iny
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lda (ZPCLBuf),y
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bne .3
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jsr CL.PrintCmdBuf
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*--------------------------------------
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CL.RESET lda #0
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sta (ZPCLBuf)
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CL.RESET.1 >STA.G CL.bExec
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>STA.G CL.Ptr
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>STA.G CL.Len
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rts
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*--------------------------------------
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CL.BS >LDA.G CL.Ptr
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beq .9
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dec
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sta (pData),y
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lda #C.BS
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>SYSCALL PutChar
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.9 rts
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*--------------------------------------
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CL.NAK >LDA.G CL.Ptr
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>CMP.G CL.Len
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beq .9
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inc
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>STA.G CL.Ptr
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lda #C.FS
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>SYSCALL PutChar
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.9 rts
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*--------------------------------------
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* Erase char UNDER cursor
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*--------------------------------------
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CL.SUPPR >LDA.G CL.Len
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beq CL.PrintEOL.8
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>LDA.G CL.Ptr
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>CMP.G CL.Len
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beq CL.PrintEOL.8
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bra CL.DEL.1
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*--------------------------------------
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* Erase char BEFORE cursor
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*--------------------------------------
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CL.DEL >LDA.G CL.Len
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beq CL.PrintEOL.8
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>LDA.G CL.Ptr
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beq CL.PrintEOL.8
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lda #C.BS
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>SYSCALL PutChar
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>DEC.G CL.Ptr
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CL.DEL.1 pha
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.1 ply
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iny
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lda (ZPCLBuf),y
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dey
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sta (ZPCLBuf),y
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iny
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phy
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tya
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>CMP.G CL.Len
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bne .1
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pla
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>DEC.G CL.Len
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*--------------------------------------
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CL.PrintEOL >LDA.G CL.Ptr
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.1 >CMP.G CL.Len
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beq .2
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pha
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tay
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lda (ZPCLBuf),y
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>SYSCALL PutChar
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pla
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inc
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bra .1
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.2 lda #' '
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>SYSCALL PutChar
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>LDA.G CL.Ptr
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.3 >CMP.G CL.Len
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beq .4
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pha
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lda #C.BS
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>SYSCALL PutChar
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pla
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inc
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bra .3
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.4 lda #C.BS
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>SYSCALL PutChar
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CL.PrintEOL.8 clc
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rts
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*--------------------------------------
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CL.PrintCmdBuf >LDYA ZPCLBuf
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>PUSHYA
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ldy #S.PS.hStdOut
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lda (pPs),y
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>SYSCALL fputs
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rts
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*--------------------------------------
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CL.GetLine >LDYA ZPFileBufPtr
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>STYA ZPFileBufPtrBak
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lda (ZPFileBufPtr)
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beq .9
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ldx #0 not in "
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ldy #0
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.1 lda (ZPFileBufPtr),y
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beq .7
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cmp #C.CR
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beq .6
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cmp #'"'
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bne .2
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txa
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eor #$80 toggle " switch
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tax
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lda #'"'
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bra .5
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.2 cmp #';'
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bne .5
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txa
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beq .6
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lda #';'
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.5 sta (ZPCLBuf),y
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iny
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cpy #CL.MAX
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bne .1
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lda #E.SYN Line Too long !!!
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* sec
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rts
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.6 sec skip CR or ;
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.HS 90 BCC
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.7 clc
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tya
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adc ZPFileBufPtr
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sta ZPFileBufPtr
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bcc .8
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inc ZPFileBufPtr+1
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.8 lda #0
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sta (ZPCLBuf),y
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tya
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>STA.G CL.Len
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lda #$ff
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>STA.G CL.bExec
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clc
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rts
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.9 lda #C.EOF
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sec
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rts
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*--------------------------------------
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* in:
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* ZPCLBuf : CString command line
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* out:
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* ZPArgVBuf :
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* /path/excmd\0 arg1\0 arg2\0 ... \0
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* - or -
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* intcmd\0 arg1\0 arg2\0 ... \0
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*--------------------------------------
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CL.Parse >STZ.G CMD.IntCmd
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lda #S.PS.F.HOLD+S.PS.F.DUPENV
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>STA.G CMD.PSFlags
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>PUSHW ZPCLBuf
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>LDYA ZPCLBuf
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>STYA ZPCLBufPtr
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>SYSCALL Args2ArgV
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lda #0
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sta (ZPArgVBuf)
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lda (ZPCLBufPtr)
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beq .8
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.1 cmp #'#' comment ?
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beq .8 yes, ignore remaining
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>LDA.G CMD.IntCmd
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bne .3 we already have Cmd, go check args
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ldy #1
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lda (ZPCLBufPtr),y only one char ?
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bne .2
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lda (ZPCLBufPtr)
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cmp #'.' leading dot ?
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bne .2
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>LDA.G CMD.PSFlags yes, child process will run in same ENV
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and #$ff^S.PS.F.DUPENV
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sta (pData),y
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bra .6 and skip this token
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.2 jsr CL.CheckCmd
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bcc .6 success, skip token, already added by CheckCmd
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rts
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.3 jsr CL.CheckIO
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bcc .7 IO token & related args processed
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tay an error ?
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bne .9 yes...I/O error...
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jsr CL.AddCLBufPtrToArgV no...add as an arg
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bcs .9
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.6 jsr CL.NextCLToken
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.7 lda (ZPCLBufPtr)
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bne .1
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.8 clc
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.9 rts
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*--------------------------------------
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* ZPCLBuf-> argv[] (formatted & not empty)
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*--------------------------------------
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CL.CheckCmd ldy #$ff
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.1 iny
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lda (ZPCLBufPtr),y
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beq .2
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cmp #'/'
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bne .1
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bra .4
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.2 >PUSHW ZPCLBufPtr
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>LDYA L.CMD.INT
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jsr Lookup no / found, search internal...
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bcs .4 not internal, search PATH
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phx
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plx
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bne .3
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>LDA.G CMD.PSFlags if STARTPROC, skip keyword...
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and #$ff^S.PS.F.HOLD
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sta (pData),y ...and toggle S.PS.F.HOLD flag
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clc
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.9 rts
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.3 jsr CL.AddYAToArgV X unmodified
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bcs .9
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txa
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>STA.G CMD.IntCmd
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clc
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rts
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.4 >LDYA ZPCLBufPtr
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jsr CL.AddYAToArgV
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lda #$ff
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>STA.G CMD.IntCmd
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clc
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CL.CheckCmd.RTS
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rts
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*--------------------------------------
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CL.CheckIO >PUSHW ZPCLBufPtr
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>LDYA L.CL.IO
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jsr Lookup
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bcs .9 not a IO token...should be an arg....
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phx
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jsr CL.NextCLToken skip this IO token
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plx
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jmp (J.CL.IO,x)
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.9 lda #0
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rts
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*--------------------------------------
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CL.IO.AMP >LDA.G CMD.PSFlags
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and #$ff^S.PS.F.HOLD
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sta (pData),y
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clc
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rts
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CL.IO.PIPE
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clc
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rts
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CL.IO.IN lda #O.RDONLY+O.TEXT
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jsr CL.IO.Open
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bcs .9
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jsr IO.Set.In
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jsr CL.NextCLToken skip arg
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clc
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.9 rts
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CL.IO.OUTA
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CL.IO.1OUTA lda #O.WRONLY+O.APPEND+O.CREATE+O.TEXT
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bra CL.IO.OUT.1
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CL.IO.OUT
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CL.IO.1OUT lda #O.WRONLY+O.TRUNC+O.CREATE+O.TEXT
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CL.IO.OUT.1 jsr CL.IO.Open
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bcs .9
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jsr IO.Set.Out
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jsr CL.NextCLToken skip arg
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clc
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.9 rts
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CL.IO.2OUTA lda #O.WRONLY+O.APPEND+O.CREATE+O.TEXT
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bra CL.IO.2OUT.1
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CL.IO.2OUT lda #O.WRONLY+O.TRUNC+O.CREATE+O.TEXT
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CL.IO.2OUT.1 jsr CL.IO.Open
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bcs .9
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jsr IO.Set.Err
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jsr CL.NextCLToken skip arg
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clc
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.9 rts
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*--------------------------------------
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CL.IO.Open pha
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lda (ZPCLBufPtr)
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beq .9 no arg left....
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>PUSHWI 0 Aux type
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>PUSHBI S.FI.T.TXT ftype
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pla
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>PUSHA flags
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>LDYA ZPCLBufPtr
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>SYSCALL fopen
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rts
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.9 pla
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lda #E.CSYN
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sec
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rts
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*--------------------------------------
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CL.NextCLToken
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lda (ZPCLBufPtr)
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inc ZPCLBufPtr
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bne .1
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inc ZPCLBufPtr+1
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.1 tax
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bne CL.NextCLToken
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rts
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*--------------------------------------
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CL.AddCLBufPtrToArgV
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>LDYA ZPCLBufPtr
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CL.AddYAToArgV >STYA ZPPtr1
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>LDYA ZPArgVBuf
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>STYA ZPPtr2
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.1 lda (ZPPtr2) scan to end of argV
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beq .6
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.2 inc ZPPtr2
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bne .3
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inc ZPPtr2+1
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.3 lda (ZPPtr2)
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bne .2
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inc ZPPtr2
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bne .4
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inc ZPPtr2+1
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.4 lda (ZPPtr2)
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bne .2
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.6 ldy #$ff
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.7 iny
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* beq .9
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lda (ZPPtr1),y
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sta (ZPPtr2),y
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bne .7 including str ending \0
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iny
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* beq .9
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sta (ZPPtr2),y arg[] ending \0
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clc
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rts
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.9 lda #E.BUF
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sec
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rts
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*--------------------------------------
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MAN
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SAVE USR/SRC/BIN/SHELL.S.CL
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LOAD USR/SRC/BIN/SHELL.S
|
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ASM
|