davex-mg-utils/alias.s

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2017-09-15 16:55:29 +00:00
;*************************************************
;*************************************************
;
; 'alias' -- external command for Davex
;
; alias -- view and modify Davex aliases
;
; alias [-s] [-l] [-r] <str1> <str2>
;
; alias displays all aliases
; alias <a> <b> adds alias
; alias -r <a> removes alias <a>
; alias -s saves aliases to %aliases
; alias -l loads aliases from %aliases
;
;*************************************************
;
; Converted to MPW IIgs 20-Sep-92 DAL
;
; Fixed from the 1.30P version on SourceForge 26-Jul-17 MG
;
;*************************************************
;.segment "CODE_A000"
OrgAdr = $A000 ;change as necessary (end below $B000)
.org OrgAdr ; Makes the listing more readable, though it doesn't really org the code - the linker does that.
.include "Common/2/Globals2.asm"
.include "Common/2/Apple.Globals2.asm"
.include "Common/2/Mli.Globals2.asm"
.include "Common/Macros.asm"
;include 'm16.util2'
low_cr = $0D
;
MyVersion = $09
MinVersion = $12
MinVerAux = $05
;*************************************************
rts
.byte $ee,$ee
.byte MyVersion,MinVersion
.byte %00000000 ;hardware req
.addr descr
.addr OrgAdr
.addr start
.byte MinVerAux,0,0,0
; parameters here
.byte 0,t_string
.byte 0,t_string
.byte $80+'r',t_nil
.byte $80+'s',t_nil
.byte $80+'l',t_nil
.byte 0,0
descr:
pstr "display or modify command aliases"
;*************************************************
; dum xczpage ;32 locations
AliasPages = xczpage
AliasP = AliasPages+1
AliasEnd = AliasP+2
myP = AliasEnd+2
str1 = myP+2
str2 = str1+2
char = str2+2
count = char+1 ;.res 2
; dend
;
start = *
sta str1+1
sty str1
lda #1
jsr xgetparm_n
sta str2+1
sty str2
ldx #1
jsr xshell_info
sta AliasP+1
sty AliasP
sty AliasEnd
stx AliasPages
txa
clc
adc AliasP+1
sta AliasEnd+1
lda #$80+'l'
jsr xgetparm_ch
bcs noLoad
jsr load_aliases
noLoad:
jsr DoAlias
lda #$80+'s'
jsr xgetparm_ch
bcs noSave
jsr save_aliases
noSave:
rts
;*************************************************
;
; handle adding, removing, or showing aliases
;
DoAlias:
lda #$80+'r'
jsr xgetparm_ch
bcs noRmv
jmp remove_alias
noRmv:
ldy #0
lda (str1),y
bne doAdd
lda (str2),y
bne doAdd
jsr xgetnump
cmp #2
beq show_aliases
rts
doAdd: jmp add_alias
;*************************************************
;
; Display all the aliases
;
show_aliases:
jsr CalcUsedSize
jsr xprdec_2
jsr xmess
asc_hi " bytes used (of "
.byte 0
lda AliasPages
ldy #0
jsr xprdec_2
jsr xmess
asc_hi ") to store these aliases:"
.byte low_cr
asc_hi " "
.byte 0
;
lda AliasP+1
ldy AliasP
sta myP+1
sty myP
ShowA1: lda (myP),y
beq ShowedA
jsr NeatCout
bcs ShowedA
iny
bne ShowA1
inc myP+1
bne ShowA1
ShowedA: rts
NeatCout: ora #$80
cmp #$8d
beq isCR
jsr cout
clc
rts
isCR: jsr xcheck_wait
bcs isCR2
jsr crout
lda #$80+' '
jsr cout
jsr cout
clc
isCR2: rts
;*************************************************
;
; Save aliases to %aliases file
;
save_aliases:
lda #>AliasName
ldy #<AliasName
jsr xbuild_local
sta aPath+1
sty aPath
sta acPath+1
sty acPath
jsr mli
.byte mli_create
.addr CreateA
bcc CreateOK
cmp #err_dupfil
bne DiskError
CreateOK:
jsr mli
.byte mli_open
.addr OpenA
bcs DiskError
lda aRef
sta aRef2
sta aRef3
sta aRef4
jsr CalcUsedSize
sta WriteA+5
sty WriteA+4
jsr mli
.byte mli_write
.addr WriteA
bcs DiskError
jsr mli
.byte mli_getmark
.addr MarkA
jsr mli
.byte mli_seteof
.addr MarkA
jsr mli
.byte mli_close
.addr CloseA
bcs DiskError
rts
;*************************************************
;
; Load aliases from %aliases file
;
load_aliases:
lda #>AliasName
ldy #<AliasName
jsr xbuild_local
sta aPath+1
sty aPath
jsr mli
.byte mli_open
.addr OpenA
bcs DiskError
lda aRef
sta aRef2
sta aRef3
lda AliasPages
ldy #0
sta ReadA+5
sty ReadA+4
jsr mli
.byte mli_read
.addr WriteA
php
pha
jsr strip7
pla
plp
bcs DiskError
jsr mli
.byte mli_close
.addr CloseA
bcs DiskError
rts
DiskError: jmp xProDOS_err
CreateA: .byte 7
acPath: .addr 0
.byte $C3 ;access
.byte tTXT ;filetype
.addr 0 ;auxtype
.byte 1 ;storage type
.addr 0,0 ;create date/time
OpenA: .byte 3
aPath: .addr 0
.addr filebuff
aRef: .byte 0
ReadA:
WriteA: .byte 4
aRef2: .byte 0
.addr Aliases,$0000,0
MarkA: .byte 2
aRef4: .byte 0
.byte 0,0,0
CloseA: .byte 1
aRef3: .byte 0
AliasName:
.byte 7,"ALIASES"
strip7: lda AliasPages
sta count
lda AliasP+1
ldy AliasP
sta myP+1
sty myP
ldy #0
strip1: lda (myP),y
and #%01111111
sta (myP),y
dey
bne strip1
dec count
bne strip1
rts
;*************************************************
;
; remove an alias
;
remove_alias:
ldy #0
lda (str2),y
beq rmv2ok
jsr xmess
.byte cr
asc_hi "*** too many parameters for removing an alias"
.byte low_cr,0
jmp xerr
rmv2ok:
jsr FindAlias
bcc rmvFound
jsr xmess
.byte cr
asc_hi "*** no such alias found"
.byte low_cr,0
jmp xerr
rmvFound: jsr remove_it
rts
;
; Add an alias, possibly replacing an existing one
;
add_alias:
jsr FindAlias
bcs addMissing
lda #1
jsr xredirect
jsr xmess
asc_hi "Okay to replace existing alias "
.byte $A2,0
lda str1+1
ldy str1
jsr xprint_path
lda #$A2
jsr cout
lda #$80+'n'
jsr xyesno2
php
lda #<-1
jsr xredirect
plp
bne ReplacIt
rts
ReplacIt: jsr remove_it
addMissing:
jsr CalcUsedSize
ldy #0
clc
lda (str1),y
adc (str2),y
adc #3
adc count
lda count+1
adc #0
cmp AliasPages
bcc haveRoom
jsr xmess
.byte cr
asc_hi "*** no room for that alias"
.byte low_cr,0
jmp xerr
haveRoom:
ldy #0
lda (str1),y
tax
bne aNameOK
jsr xmess
.byte cr
asc_hi "*** empty string is not a legal alias"
.byte low_cr,0
jmp xerr
aNameOK: iny
lda (str1),y
jsr CramChar
dex
bne aNameOK
lda #$80+' '
jsr CramChar
ldy #0
lda (str2),y
tax
beq aDefDone
AddDef: iny
lda (str2),y
jsr CramChar
dex
bne AddDef
aDefDone: lda #$0d
jsr CramChar
lda #0
jmp CramChar
;
; CramChar -- append A to (myP)
;
CramChar: sty cramY
ldy #0
sta (myP),y
ldy cramY
inc myP
bne cram_ok
inc myP+1
cram_ok: rts
cramY: .byte 0
;
; FindAlias -- return CLC if found, myP points to it
;
FindAlias:
lda AliasP+1
ldy AliasP
sta myP+1
sty myP
FindA1:
jsr compare
bcc FoundIt
jsr NextAlias
ldy #0
lda (myP),y
bne FindA1
sec
FoundIt: rts
;
; compare--check if alias at myP matches str1, returning
; CLC if they do (and preserving myP)
;
compare:
lda myP+1
pha
lda myP
pha
ldy #0
lda (str1),y
tax
beq NoMatch
iny ;Y=1
jsr decP
cmp1:
lda (str1),y
jsr xdowncase
sta char
jsr FetchChar
and #%01111111
beq NoMatch
jsr xdowncase
cmp char
bne NoMatch
iny
dex
bne cmp1
jsr FetchChar
cmp #$80+' '
bne NoMatch
matches: clc
compared:
pla
sta myP
pla
sta myP+1
rts
NoMatch:
sec
bcs compared
;
; increment myP and return the character it points at
;
FetchChar: inc myP
bne P2ok
inc myP+1
P2ok = *
sty ytemp
ldy #0
lda (myP),y
ldy ytemp
ora #%10000000
rts
ytemp: .res 1
;
; advance myP to next alias
;
NextAlias: jsr FetchChar
cmp #$8d
beq FetchChar
and #%01111111
bne NextAlias
rts
;*************************************************
;
; Remove the alias that myP is pointing at
;
remove_it:
ldy #0
lda (myP),y
beq removed
pha
jsr KillCharP
pla
and #$7f
cmp #$0d
bne remove_it
removed: rts
;
; Kill a character at myP, shifting forward all the
; characters after myP until AliasEnd
;
KillCharP:
lda myP+1
pha
lda myP
pha
KillLoop:
ldy #1
lda (myP),y
dey
sta (myP),y
inc myP
bne p_ok
inc myP+1
p_ok: lda myP+1
cmp AliasEnd+1
bne KillLoop
lda myP
cmp AliasEnd
bne KillLoop
pla
sta myP
pla
sta myP+1
rts
;
; CalcUsedSize--return used bytes in AY,
; myP pointing at the $00 marker at the end
; of the alias data
;
CalcUsedSize:
lda #0
sta count
sta count+1
lda AliasP+1
ldy AliasP
sta myP+1
sty myP
ldy #0
cus1: lda (myP),y
beq cus_done
inc count
bne count_ok
inc count+1
count_ok: inc myP
bne cus1
inc myP+1
bne cus1
cus_done: lda count+1
ldy count
rts
;
decP: lda myP
bne decP1
dec myP+1
decP1: dec myP
rts