A2osX/SYS/KERNEL.S.STRV.txt

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2020-01-24 14:21:08 +00:00
NEW
AUTO 3,1
*/--------------------------------------
* # NewStrV
* **In:**
* A = Initial Size (Page)
* ## RETURN VALUE
* X = hStrV
* Y,A = Ptr
*\--------------------------------------
K.NewStrV
*/--------------------------------------
* # StrVGet
* **In:**
* A = hStrV
* X = index
* ## RETURN VALUE
* Y,A = Ptr
*\--------------------------------------
K.StrVGet
*/--------------------------------------
* # StrVDup
* **In:**
* Y,A = Src StrV
* ## RETURN VALUE
* X = hMem of new StrV
* A = Str Count
*\--------------------------------------
K.StrVDup >STYA ZPPtr1
>STYA ZPPtr2
ldy #0
ldx #0
.1 lda (ZPPtr2),y
beq .2
.11 iny
bne .1
inx
inc ZPPtr2+1
bra .1
.2 iny
bne .3
inx
inc ZPPtr2+1
.3 lda (ZPPtr2),y
bne .11
txa
jsr K.getmem
bcs .9
>STYA ZPPtr2
phx
ldx #0
ldy #0
.4 lda (ZPPtr1),y
.5 sta (ZPPtr2),y
beq .6
iny
bne .4
inc ZPPtr1+1
inc ZPPtr2+1
bra .4
.6 inx
iny
bne .7
inc ZPPtr1+1
inc ZPPtr2+1
.7 lda (ZPPtr1),y
bne .5
sta (ZPPtr2),y Ending \0
txa
plx hMem
clc
.9 rts
*/--------------------------------------
* # Str2StrV
* Expand String and convert to ArgV List
* ## C
* short int str2strv(char* args, char* argv[])
* ## ASM
* `>PUSHW argv`
* `>LDYA args`
* `>SYSCALL Str2StrV`
* ## RETURN VALUE
* A = Arg count
*\--------------------------------------
ARG.bInQuote .EQ ZPPtr3
*--------------------------------------
K.Str2StrV jsr K.Expand
bcs .9
>STYA ZPPtr1
stx .80+1
>PULLW ZPPtr2 Get target buffer
ldx #0 Arg Count
stz ARG.bInQuote
.1 jsr SHARED.GetCharPtr1
beq .8
cmp #C.SPACE
beq .1 skip leading spaces
.2 cmp #'"' found a quote ?
bne .3
lda ARG.bInQuote
eor #$ff
sta ARG.bInQuote
bra .7 skip quote and check next char
.3 cmp #C.SPACE
bne .6 regular char ...store...
bit ARG.bInQuote
bmi .6 between quotes... store space...
inx Found one arg !!!
lda #0 set this token End
jsr SHARED.PutCharPtr2
bra .1
.6 jsr SHARED.PutCharPtr2
.7 jsr SHARED.GetCharPtr1
bne .2
inx
.8 jsr SHARED.PutCharPtr2 set Argv[x] Ending 0
sta (ZPPtr2) set Array Ending 0
phx
.80 lda #$FF SELF MODIFIED
jsr K.FreeMem Discard expanded string
pla get back Arg Count
* clc
rts
.9 >RET 2 Discard target buffer
*--------------------------------------
MAN
SAVE USR/SRC/SYS/KERNEL.S.STRV
LOAD USR/SRC/SYS/KERNEL.S
ASM