mirror of
https://github.com/A2osX/A2osX.git
synced 2024-11-23 07:35:19 +00:00
338 lines
5.8 KiB
Plaintext
338 lines
5.8 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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CMD.Init >LDYAI 256
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>SYSCALL GetMem
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bcs .9
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>STYA ZPArgVBuf
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txa
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>STA.G CORE.hArgVBuf
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lda #PUSHD.STACK
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tay
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sta (pData),y
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.9 rts
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*--------------------------------------
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CMD.Quit ldy #CORE.hArgVBuf
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jsr .8
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ldy #hFileBuf
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.8 lda (pData),y
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beq .9
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>SYSCALL FreeMem
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clc
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.9 rts
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*--------------------------------------
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* Read From InputBuf
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*--------------------------------------
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CMD.Get >LDYA ZPInputBufPtr
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>STYA ZPInputBufPtrBak
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lda (ZPInputBufPtr)
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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 (ZPInputBufPtr),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 #$80 toggle " switch
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tax
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lda #'"'
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bra .5
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.2 cmp #';'
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bne .5
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txa
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beq .6
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lda #';'
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.5 sta (ZPCLBuf),y
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iny
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cpy #CL.MAX
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bne .1
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lda #E.SYN Line Too long !!!
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* sec
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rts
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.6 sec skip CR or ;
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.HS 90 BCC
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.7 clc
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tya
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adc ZPInputBufPtr
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sta ZPInputBufPtr
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bcc .8
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inc ZPInputBufPtr+1
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.8 lda #0
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sta (ZPCLBuf),y
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tya
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>STA.G CL.Len
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lda #$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 CORE.IntCmd
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lda #S.PS.F.HOLD+S.PS.F.DUPENV
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>STA.G CORE.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 CORE.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 CORE.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.CORE.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 CORE.PSFlags if STARTPROC, skip keyword...
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and #$ff^S.PS.F.HOLD
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sta (pData),y ...and toggle S.PS.F.HOLD flag
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clc
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.9 rts
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.3 jsr CL.AddYAToArgV X unmodified
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bcs .9
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txa
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>STA.G CORE.IntCmd
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clc
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rts
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.4 >LDYA ZPCLBufPtr
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jsr CL.AddYAToArgV
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lda #$ff
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>STA.G CORE.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 CORE.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.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.CMD
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LOAD USR/SRC/BIN/SHELL.S
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ASM
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