36 lines
1.1 KiB
Mathematica
36 lines
1.1 KiB
Mathematica
XMCU1 ;(WASH ISC)/CMW-Encode/Decode String APIs ;04/17/2002 08:30
|
|
;;8.0;MailMan;;Jun 28, 2002
|
|
; Entry points (DBIA 1136):
|
|
; $$ENCODEUP - Convert all "^" to "~U~"
|
|
; $$DECODEUP - Convert all "~U~" to "^"
|
|
; $$STRAN - Convert all control characters to printable ones
|
|
; $$RTRAN - Undo the conversion done by $$STRAN
|
|
;
|
|
RTRAN(XXX) ; Extrinsic Function to decode control characters
|
|
;Input=STRING
|
|
;Output=STRING
|
|
N XMESC,X,Y,X1,I
|
|
S XMESC="~"
|
|
Q:XXX'[XMESC
|
|
S Y="",X1=XXX
|
|
R1 S I=$F(X1,XMESC) I I=0 S X=Y_X1 G SET
|
|
S Y=Y_$E(X1,1,I-2)_$C($A($E(X1,I))-64#128),X1=$E(X1,I+1,999) G R1
|
|
SET Q X
|
|
STRAN(XXX) ; Extrinsic Function to encode control characters
|
|
;Input=STRING
|
|
;Output=STRING
|
|
N XMESC,Y,X1,I
|
|
S XMESC="~"
|
|
S Y="" F I=1:1:$L(XXX) S X1=$E(XXX,I) S Y=Y_$S(X1=XMESC:XMESC_$C(62),X1?1C:XMESC_$C($A(X1)+64#128),1:X1)
|
|
Q Y
|
|
ENCODEUP(XXX) ; Extrinsic Function to encode "^" into "~U~"
|
|
; Input=STRING
|
|
; Output=STRING
|
|
F Q:XXX'[U S XXX=$P(XXX,U)_"~U~"_$P(XXX,U,2,999)
|
|
Q XXX
|
|
DECODEUP(XXX) ; Extrinsic Function to decode "~U~" to "^"
|
|
; Input=STRING
|
|
; Output=STRING
|
|
F Q:XXX'["~U~" S XXX=$P(XXX,"~U~")_"^"_$P(XXX,"~U~",2,999)
|
|
Q XXX
|