mirror of
https://github.com/A2osX/A2osX.git
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346 lines
9.0 KiB
Plaintext
346 lines
9.0 KiB
Plaintext
PR#3
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PREFIX /A2OSX.SRC
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NEW
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INC 1
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AUTO 6
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.LIST OFF
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.OP 65C02
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*--------------------------------------
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* S.PStrCpyA
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* In:
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* A = hMem of Src String
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* Out:
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* A = hMem of Dest String
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*--------------------------------------
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* S.NewPStrYA
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* IN:
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* PULLW = PTR to buffer
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* OUT:
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* A = hMem to S (PSTRING)
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*--------------------------------------
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S.PStrCpyA jsr S.GetMemPtrA
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S.NewPStrYA >STYA ZPQuickPtr1
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lda (ZPQuickPtr1)
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inc
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tay
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lda #0 Y,A = len of new string
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>PUSHYA
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>PUSHA 0 = no option
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jsr S.GetMem
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bcs .9
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phx
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>STYA ZPQuickPtr2
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lda (ZPQuickPtr1)
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sta (ZPQuickPtr2)
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tay
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beq .2
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.1 lda (ZPQuickPtr1),y
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sta (ZPQuickPtr2),y
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dey
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bne .1
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.2 pla
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clc
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rts
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.9 sec
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rts
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*--------------------------------------
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* S.PStrCat
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* IN:
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* PULLB = hMem to S1 (PSTRING)
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* PULLB = hMem to S2 (PSTRING)
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* OUT:
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* A = hMem to S1+S2 (PSTRING)
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*--------------------------------------
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S.PStrCat >PULLA
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jsr S.GetMemPtrA
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>STYA ZPQuickPtr1 save S1
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>PULLA
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jsr S.GetMemPtrA
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>STYA ZPQuickPtr2 save S2
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lda (ZPQuickPtr1) Compute length of new path = S1 + S2 + 1
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sec
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adc (ZPQuickPtr2)
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tay
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lda #0 Y,A = len of new string
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>PUSHYA
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>PUSHA 0 = no option
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jsr S.GetMem
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bcs .9 OOM error
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>STYA ZPQuickPtr3
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phx save New hMem
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lda (ZPQuickPtr1)
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tax
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ldy #0
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.2 iny
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lda (ZPQuickPtr1),y
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sta (ZPQuickPtr3),y
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dex
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bne .2
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lda (ZPQuickPtr2)
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tax
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.3 inc ZPQuickPtr2
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bne .4
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inc ZPQuickPtr2+1
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.4 iny
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lda (ZPQuickPtr2)
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sta (ZPQuickPtr3),y
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dex
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bne .3
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tya
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sta (ZPQuickPtr3)
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pla returns A = new hMem
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clc
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rts
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.9 sec
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rts
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*--------------------------------------
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* S.PStrCmp
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* IN:
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* PULLB = hMem to S1 (PSTRING)
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* PULLB = hMem to S2 (PSTRING)
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* OUT:
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* cc or cs
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*--------------------------------------
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S.PStrCmp >PULLA
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jsr S.GetMemPtrA
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>STYA ZPQuickPtr1 save S1
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>PULLA
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jsr S.GetMemPtrA
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>STYA ZPQuickPtr2 save S2
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lda (ZPQuickPtr1)
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tay
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cmp (ZPQuickPtr2)
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bne .9
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.1 lda (ZPQuickPtr1),y
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cmp (ZPQuickPtr2),y
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bne .9
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dey
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bne .1
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clc
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rts
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.9 sec
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rts
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*--------------------------------------
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* S.PStrMatch
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* IN:
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* PULLB = hMem to String (PSTRING)
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* PULLB = hMem to Pattern (PSTRING)
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* OUT:
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* cc = match
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* cs = no match
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*--------------------------------------
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S.PStrMatch >PULLA
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jsr S.GetMemPtrA
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>STYA ZPQuickPtr2 save String
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>PULLA
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jsr S.GetMemPtrA
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>STYA ZPQuickPtr1 save Pattern
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bra S.PStrMatch1
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S.PStrMatchP >PULLW ZPQuickPtr2 pull String
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>PULLW ZPQuickPtr1 pull Pattern
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S.PStrMatch1 lda (ZPQuickPTR1) Keep Pattern Length in X
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tax
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beq .8 Match always if empty
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ldy #0
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.1 inc ZPQuickPTR1 Make PTR1 advance to next char
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bne .2
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inc ZPQuickPTR1+1
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.2 lda (ZPQuickPTR1) get pattern char
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cmp #'*'
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beq .5
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.3 tya we must match ? or regular char
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cmp (ZPQuickPTR2) check if at end of string
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beq .9 yes, no char left, exit with error
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iny advance to next char to compare
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lda (ZPQuickPTR1) get back pattern char
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cmp #'?'
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beq .4 no need to compare, any char will match
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cmp (ZPQuickPTR2),y Regular Char, compare with string at Y
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bne .9 no match, exit
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.4 dex char matched, check if end of pattern
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bne .1 continue if remaining char in pattern
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tya end of pattern, but end of string ?
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cmp (ZPQuickPTR2) end of string ?
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beq .8 yes, string matched entirely
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bra .9 no, remaining char in string, no match
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.5 dex we have '*', last char of pattern ?
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beq .8 yes, match everything, including empty string
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inc ZPQuickPTR1 Make PTR1 advance to next char
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bne .6
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inc ZPQuickPTR1+1
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.6 lda (ZPQuickPTR1) get next char of pattern
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cmp #'*' another '*' ?
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beq .5 yes, '**' = '*', go next char
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cmp #'?' '*?' ??? we must match a least one char
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beq .3
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.7 tya we need at least one remaining char in string,
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cmp (ZPQuickPTR2) check if at end of string
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beq .9 no chance to match ? or regular char
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iny
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lda (ZPQuickPTR1) get again char in pattern
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cmp (ZPQuickPTR2),y compare with char in string
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bne .7 not equal to next non wildcard in pattern
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bra .4 go check remaining char in pattern...
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.8 clc
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rts
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.9 sec
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rts
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*--------------------------------------
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* S.PStrGetTkn
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* IN:
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* PULLB = Token IDX
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* 0: "Split mode": first token + remaining
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* !0: "Std Mode": Return token #
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* PULLB = SEP char
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* PULLB = hMem to PSTRING
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* OUT:
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* A = hMem to Token (PSTRING)
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* X = hMem to Remaining String After Token "Split Mode"
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*--------------------------------------
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S.PStrGetTkn >PULLA Get IDX
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sta ZPQuickPtr2+1
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>PULLA Get SEP
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sta ZPQuickPtr2
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>PULLA Get PStr
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jsr S.GetMemPtrA
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>STYA ZPQuickPtr1
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ldx #0 init token count to 0
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ldy #0
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stz ZPQuickPtr3 init INTOKEN start to 0
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.1 iny
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lda (ZPQuickPtr1),y
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and #$7F
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cmp ZPQuickPtr2 char=SEP ?
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bne .3 no, start a new token if not alredy in
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lda ZPQuickPtr3 SEP:in INTOKEN ?
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beq .4 no, skip this SEP
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inx yes, increase token count
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lda ZPQuickPtr2+1 requested token=0 ?
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beq .71 yes, we are in "split mode"
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cpx ZPQuickPtr2+1 no,is current X=requested IDX?
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beq .71
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stz ZPQuickPtr3 reset in INTOKEN start
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bra .4
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.3 lda ZPQuickPtr3 char:already INTOKEN ?
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bne .4 yes, keep existing start index
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sty ZPQuickPtr3 mark begining of token
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.4 tya
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cmp (ZPQuickPtr1) end of string ?
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bne .1 no, get next one
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lda ZPQuickPtr3 INTOKEN?
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beq .6
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inx yes, last one is ending with string
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.6 lda ZPQuickPtr2+1 split mode ?
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beq .7
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cpx ZPQuickPtr2+1 is token = requested?
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beq .7
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sec End of String reached, no matching token
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.61 rts
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.71 dey move back yo end of token before this SEP
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.7 sty ZPQuickPtr3+1 we have matching token (or 1st one in split mode) at [ZPQuickPtr3,ZPQuickPtr3+1]
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tya compute token len=Y-ZPQuickPtr3+1
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sec
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sbc ZPQuickPtr3
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inc +1
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inc +1 for string len
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tay
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lda #0
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>PUSHYA Get a hMem for this token
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>PUSHA 0 = no option
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jsr S.GetMem
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bcs .61
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phx save hMem
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>STYA ZPQuickPtr4
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lda ZPQuickPtr3+1
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sec
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sbc ZPQuickPtr3
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inc
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sta (ZPQuickPtr4) set this string length
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ldy ZPQuickPtr3
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dey
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.8 iny
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inc ZPQuickPtr4
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bne .9
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inc ZPQuickPtr4+1
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.9 lda (ZPQuickPtr1),y
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sta (ZPQuickPtr4)
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cpy ZPQuickPtr3+1
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bne .8
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lda ZPQuickPtr2+1 requested token=0 ?
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bne .87
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tya yes, we are in "split mode"
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cmp (ZPQuickPtr1) Remaining chars ?
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beq .87
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.10 iny move to next char
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lda (ZPQuickPtr1),y
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cmp ZPQuickPtr2 char=SEP?
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bne .11
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tya
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cmp (ZPQuickPtr1) last one ?
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bne .10
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bra .87 yes, nothing to return
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.11 sty ZPQuickPtr3+1 ZPQuickPtr3+1=1st non SEP char
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lda (ZPQuickPtr1) compute reamining len=Y-ZPQuickPtr3+1
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sec
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sbc ZPQuickPtr3+1
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inc
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inc +1 for string len
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tay
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lda #0
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>PUSHYA Get a hMem for remaining string
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>PUSHA 0 = no option
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jsr S.GetMem
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bcs .98
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phx save hMem
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>STYA ZPQuickPtr4
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lda (ZPQuickPtr1)
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sec
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sbc ZPQuickPtr3+1
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inc
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sta (ZPQuickPtr4)
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ldy ZPQuickPtr3+1
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dey
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.12 iny
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inc ZPQuickPtr4
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bne .13
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inc ZPQuickPtr4+1
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.13 lda (ZPQuickPtr1),y
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sta (ZPQuickPtr4)
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tya
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cmp (ZPQuickPtr1)
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bne .12
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plx get back remaining string hMem
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pla get back token hMem
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clc
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rts
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.87 ldx #0 Splitmode but no remaining string to return
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pla get back token hMem
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clc
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rts
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.98 pla get back Token hMem
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jsr S.FreeMemA discard Token
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.99 sec
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rts
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*--------------------------------------
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MAN
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SAVE SYS/KERNEL.S.STR
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LOAD SYS/KERNEL.S
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ASM
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