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1dc5497309
(PR#85, PR#86): For login shells (command line starts with '-'), If $PATH doesn't start with ':' or contain a space, change all ":" to " ". source /etc/glogin source $HOME/glogin $HOME/gshrc is sourced afterward for both login and non-login shells. Don't the print number of hashed commands (from "rehash") until all initialization is completed. Only pass exported environment variables to child processes, and prevent child processes from changing parent's environment. A null command followed by a redirection of stdout, for example > /tmp/list would cause an error message "<garbage> not found" due to incorrect setting of command buffer pointer. Filename completion did not work following ">&" or ">" without a trailing space. Entabbed all the asm files, saving more than 36,000 bytes.
313 lines
6.6 KiB
NASM
313 lines
6.6 KiB
NASM
*************************************************************************
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*
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* The GNO Shell Project
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*
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* Developed by:
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* Jawaid Bazyar
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* Tim Meekins
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*
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* $Id: orca.asm,v 1.6 1998/09/08 16:53:12 tribby Exp $
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*
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**************************************************************************
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*
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* ORCA.ASM
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* By Tim Meekins
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* Modified by Dave Tribby for GNO 2.0.6
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*
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* Builtin command for ORCA editor
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*
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* Note: text set up for tabs at col 16, 22, 41, 49, 57, 65
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* | | | | | |
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* ^ ^ ^ ^ ^ ^
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**************************************************************************
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mcopy /obj/gno/bin/gsh/orca.mac
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dummyorca start ; ends up in .root
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end
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setcom 60
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**************************************************************************
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*
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* EDIT: builtin command
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* syntax: edit pathname...
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*
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* Invokes the ORCA editor and edits a file or files.
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*
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**************************************************************************
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MAXPARMBUF gequ 1023
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edit START
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strPtr equ 0
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inLoopPtr equ strPtr+4
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argLoopPtr equ inLoopPtr+4
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sLen equ argLoopPtr+4
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pathLen equ sLen+2
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pnum equ pathLen+2
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editcommand equ pnum+2
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retval equ editcommand+4
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sFile equ retval+2 GSString255Ptr
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inPath equ sFile+4
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outPath equ inPath+4
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space equ outPath+4
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subroutine (4:argv,2:argc),space
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lda argc Make sure there are two or
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cmp #2 more parameters.
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bcs enoughparms Otherwise,
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ldx #^enofile report error:
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lda #enofile no filename specified
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jsr errputs
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lda #1
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bra seterr
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; Allocate memory for sFile, inPath, and outPath
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enoughparms anop
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jsl alloc1024
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sta sFile
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stx sFile+2
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ora sFile+2
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beq memerr1
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jsl alloc1024
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sta inPath
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stx inPath+2
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ora inPath+2
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beq memerr1
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jsl alloc1024
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sta outPath
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stx outPath+2
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ora outPath+2
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bne noerr1
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memerr1 ldx #^enomem Report error:
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lda #enomem out of memory
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jsr errputs
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lda #-1
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seterr sta retval
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jmp goaway
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; Parameters were provided, and memory has been allocated.
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; Ready to start processing the filename(s).
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noerr1 anop
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stz retval Zero return status
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stz sLen and length of source names.
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lda #1 Initialize parameter
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sta pnum number to 1.
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lda sFile strPtr = sFile + 2
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clc
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adc #2
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sta strPtr
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lda sFile+2
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adc #0
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sta strPtr+2
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bra nodelimit Skip delimiter for 1st file.
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; Loop for getting name, converting it to a full path, and
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; appending it to sFile
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doloop short m Between parameters:
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lda #10 Store newline as delimiter
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sta [strPtr] character in strPtr.
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long m
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inc sLen Bump string length
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incad strPtr and pointer.
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nodelimit anop
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lda pnum Get parameter number
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asl a and turn it into an
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asl a index to the proper
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tay argv pointer.
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lda [argv],y Store address in
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sta argLoopPtr direct page variable
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iny2 argLoopPtr.
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lda [argv],y
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sta argLoopPtr+2
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lda inPath Get address of text field
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clc in inPath.
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adc #2
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sta inLoopPtr
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lda inPath+2
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adc #0
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sta inLoopPtr+2
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; Move argument into inPath, counting characters
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ldy #0
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whileloop lda [argLoopPtr],y Get next character of name.
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and #$00FF If it's the terminating null,
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beq donewhile done copying.
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sta [inLoopPtr],y Store character (and null byte)
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iny
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cpy #255 If < 255,
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bcc whileloop stay in loop.
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ldx #^einval Print error:
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lda #einval invalid argument (filename too long)
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jsr errputs
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lda #2
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bra seterr
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donewhile tya Set length of GS/OS string inPath.
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sta [inPath]
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lda #1024 Set max len of result buffer outPath.
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sta [outPath]
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; Set up GS/OS ExpandPath parameter buffer and make call.
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mv4 inPath,ep_inputPath
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mv4 outPath,ep_outputPath
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ExpandPath ep Expand the pathname.
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; Note: The GS/OS reference says ExpandPath can detect invalid pathname
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; syntax error, but I can't get this to happen (even with names like
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; "::/^" and " "). Ignore errors and let the editor report them.
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ldy #2 Get length of result string
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lda [outPath],y
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sta pathLen and store in pathLen.
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clc
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adc sLen If accumulated length is
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cmp #MAXPARMBUF beyond the maximum,
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bcs doloopend don't add this name.
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sta sLen Store accumulated length in sLen.
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pei (pathLen) Append outPath string
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pei (outPath+2) to the end of sFile's text.
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lda outPath
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clc
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adc #4
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pha
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pei (strPtr+2)
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pei (strPtr)
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jsl rmemcpy
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lda strPtr Add pathLen to strPtr.
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clc
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adc pathLen
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sta strPtr
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lda strPtr+2
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adc #0
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sta strPtr+2
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doloopend inc pnum pnum++
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lda pnum if pnum < argc,
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cmp argc
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jcc doloop continue processing filenames.
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; All of the arguments have been processed.
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lda sLen Save length in
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sta [sFile] GS/OS buffer.
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; Set up shell SetLInfo parameter buffer and make call.
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mv4 sFile,gl_sFile
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SetLInfoGS gl Set the edit environment.
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ph4 #editorvar Get value of environment
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jsl getenv variable "editor".
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sta editcommand
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stx editcommand+2
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ora editcommand+2
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bne goteditvar If $editor is not defined,
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ph4 #defedit use default value.
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bra execit
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goteditvar anop Add 4 to value returned by getenv
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ldx editcommand+2 to get address of text portion.
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clc
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lda editcommand
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adc #4
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bcc nobump
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inx
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nobump anop
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phx Push address onto stack.
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pha
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execit ph2 #0 Tells execute we're called by system
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jsl execute
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sta retval
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lda editcommand If getenv allocated it,
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ora editcommand+2
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beq goaway
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pei (editcommand+2) free the "editcommand" string.
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pei (editcommand)
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jsl nullfree
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; See which GS/OS buffers need to be deallocated
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goaway lda sFile
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ora sFile+2
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beq donedealloc
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ldx sFile+2
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lda sFile
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jsl free1024
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lda inPath
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ora inPath+2
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beq donedealloc
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ldx inPath+2
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lda inPath
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jsl free1024
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lda outPath
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ora outPath+2
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beq donedealloc
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ldx outPath+2
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lda outPath
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jsl free1024
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; Return to caller with status set to value in retval
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donedealloc return 2:retval
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; Parameter block for GS/OS ExpandPath call (p. 140 in GS/OS Reference)
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ep dc i2'2' pCount
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ep_inputPath dc i4'0' input pointer (GS/OS string)
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ep_outputPath dc i4'0' output pointer (GS/OS result buf)
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; Error messages
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enofile dc c'edit: no filename specified',h'0D00'
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enomem dc c'edit: out of memory',h'0D00'
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einval dc c'edit: invalid argument (filename too long)',h'0D00'
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; Parameter block for shell SetLInfo call (p. 433 in ORCA/M book)
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gl anop
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dc i2'11' pCount
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gl_sfile dc i4'0' source file name (GS/OS string)
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dc i4'nullparm' output file name (compile/link)
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dc i4'nullparm' names in NAMES parameter list (compile)
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dc i4'nullparm' compiler commands (compiler)
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dc i1'0' max err level allowed (compile/link)
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dc i1'0' max err level found (compile/link)
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dc i1'0' operations flags (compile/link)
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dc i1'0' keep flag (compile)
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dc i4'0' minus flags (see ASML command descr)
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dc i4'$08000000' plus flags [+E] (see ASML)
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dc i4'0' origin (link)
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nullparm dc i2'0'
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editorvar gsstr 'editor' Name of editor environment variable
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defedit dc c'4:editor',h'00' Default value for editor
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END
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