HDISVM01 ;BPFO/JRP - PARSE XML DOCUMENT USING SAX;12/20/2004
;;1.0;HEALTH DATA & INFORMATICS;;Feb 22, 2005
;
SAX(XMLARR,PRSARR) ;Parse XML document using SAX interface
; Input: XMLARR - Global array containing XML document (closed root)
; PRSARR - Array to output parsed XML document (closed root)
;Output: None
; @PRSARR@("ESUBS",ESN) = Element name
; @PRSARR@("EINDX",ElementName) = Subscript number (ESN)
; @PRSARR@("ASUBS",ESN,ASN) = Attribute name
; @PRSARR@("AINDX",ESN,AttributeName) = Subscript number (ASN)
; @PRSARR@("DATA",ESN,Repetition,"V") = Value of element
; @PRSARR@("DATA",ESN,Repetition,"A",ASN) = Value of attribute
; @PRSARR@("DATA",ESN1,Rep1,ESN2,Rep2,"V") = Value of child
; element
; @PRSARR@("DATA",ESN1,Rep1,ESN2,Rep2,"A",ASN) = Value of child
; attribute
; Notes : XMLARR must be a global array (i.e. no local arrays)
; : PRSARR is initialized (i.e KILLed) on input
Q:$G(XMLARR)=""
Q:'$D(@XMLARR)
Q:$G(PRSARR)=""
N HDICBK,SUBNUM,TAGNAME
N ESUBS,EINDX,ASUBS,AINDX,DATA
S ESUBS=$NA(@PRSARR@("ESUBS"))
S EINDX=$NA(@PRSARR@("EINDX"))
S ASUBS=$NA(@PRSARR@("ASUBS"))
S AINDX=$NA(@PRSARR@("AINDX"))
S DATA=$NA(@PRSARR@("DATA"))
;Set callbacks
S HDICBK("STARTDOCUMENT")="STRTDOC^HDISVM01"
S HDICBK("ENDDOCUMENT")="ENDDOC^HDISVM01"
S HDICBK("DOCTYPE")="DOCTYPE^HDISVM01"
S HDICBK("STARTELEMENT")="STRTLMNT^HDISVM01"
S HDICBK("ENDELEMENT")="ENDLMNT^HDISVM01"
S HDICBK("CHARACTERS")="CHARS^HDISVM01"
S HDICBK("PI")="PI^HDISVM01"
S HDICBK("EXTERNAL")="EXTERN^HDISVM01"
S HDICBK("NOTATION")="NOTATION^HDISVM01"
S HDICBK("COMMENT")="COMMENT^HDISVM01"
S HDICBK("ERROR")="ERROR^HDISVM01"
;Parse XML document using SAX
K @PRSARR
D EN^MXMLPRSE(XMLARR,.HDICBK,"")
Q
;
STRTDOC ;Start document
Q
;
ENDDOC ;End document
Q
;
DOCTYPE(ROOT,PUBID,SYSID) ;DOCTYPE declaration
Q
;
STRTLMNT(NAME,ATTRLIST) ;Start element
N ESN,REP,ATTR,ASN,TMPREF
;Determine element subscript number
S ESN=+$G(@EINDX@(NAME))
I 'ESN D
.S ESN=1+$O(@ESUBS@(""),-1)
.S @ESUBS@(ESN)=NAME
.S @EINDX@(NAME)=ESN
;Determine repetition number
S REP=1+$O(@DATA@(ESN,""),-1)
;Add element subscript number and repetition number to output array
S TMPREF=$$OREF^DILF(DATA)
S TMPREF=TMPREF_ESN_","_REP_","
S DATA=$$CREF^DILF(TMPREF)
;Store attributes
S ATTR=""
F S ATTR=$O(ATTRLIST(ATTR)) Q:ATTR="" D
.;Get attribute subscript number
.S ASN=+$G(@AINDX@(ESN,ATTR))
.I 'ASN D
..S ASN=1+$O(@ASUBS@(""),-1)
..S @ASUBS@(ESN,ASN)=ATTR
..S @AINDX@(ESN,ATTR)=ASN
.;Store value
.S @DATA@("A",ASN)=ATTRLIST(ATTR)
Q
;
ENDLMNT(NAME) ;End element
N TMPREF,SUBCNT,SUBCHK
;Remove element subscript number and repition number from output array
S TMPREF=$$OREF^DILF(DATA)
S SUBCNT=$L(TMPREF,",")
S SUBCHK=SUBCNT-3
I SUBCHK>0 S TMPREF=$P(TMPREF,",",1,SUBCHK)_","
I SUBCHK<1 S TMPREF=$P(TMPREF,"(",1)_"("
S DATA=$$CREF^DILF(TMPREF)
Q
;
CHARS(TEXT) ;Non-markup content
;Store element value
S @DATA@("V")=TEXT
Q
;
PI(TARGET,TEXT) ;Processing instruction
Q
;
EXTERN(SYSID,PUBID,GLOBAL) ;External entity reference
Q
;
NOTATION(NAME,SYSID,PUBID) ;Notation declaration
Q
;
Q
;
ERROR(ERR) ;Error
Q
;
UNESC(TEXT) ;Convert escaped characters
;Assumes TEXT is not corrupt
N ESCBEG,ESCEND,ESCTXT,ESCCHAR,OUTPUT
S TEXT=$G(TEXT)
I TEXT="" Q TEXT
I TEXT'["&" Q TEXT
;Do conversion
S OUTPUT=""
F Q:TEXT'["&" D
.;Find escaped character
.S ESCBEG=$F(TEXT,"&")
.S ESCEND=$F(TEXT,";",ESCBEG)
.S ESCTXT=$E(TEXT,ESCBEG,ESCEND-2)
.;Convert escaped character
.S ESCCHAR=""
.I ESCTXT="amp" S ESCCHAR="&"
.I ESCTXT="lt" S ESCCHAR="<"
.I ESCTXT="gt" S ESCCHAR=">"
.I ESCTXT="apos" S ESCCHAR="'"
.I ESCTXT="quot" S ESCCHAR=$C(34)
.;Replace escaped character with actual character
.S OUTPUT=OUTPUT_$E(TEXT,1,ESCBEG-2)_ESCCHAR
.;Continue processing rest of string
.S TEXT=$E(TEXT,ESCEND,$L(TEXT))
;Add on remainder of text
S OUTPUT=OUTPUT_TEXT
Q OUTPUT
HDISVM01 ;BPFO/JRP - PARSE XML DOCUMENT USING SAX;12/20/2004
+1 ;;1.0;HEALTH DATA & INFORMATICS;;Feb 22, 2005
+2 ;
SAX(XMLARR,PRSARR) ;Parse XML document using SAX interface
+1 ; Input: XMLARR - Global array containing XML document (closed root)
+2 ; PRSARR - Array to output parsed XML document (closed root)
+3 ;Output: None
+4 ; @PRSARR@("ESUBS",ESN) = Element name
+5 ; @PRSARR@("EINDX",ElementName) = Subscript number (ESN)
+6 ; @PRSARR@("ASUBS",ESN,ASN) = Attribute name
+7 ; @PRSARR@("AINDX",ESN,AttributeName) = Subscript number (ASN)
+8 ; @PRSARR@("DATA",ESN,Repetition,"V") = Value of element
+9 ; @PRSARR@("DATA",ESN,Repetition,"A",ASN) = Value of attribute
+10 ; @PRSARR@("DATA",ESN1,Rep1,ESN2,Rep2,"V") = Value of child
+11 ; element
+12 ; @PRSARR@("DATA",ESN1,Rep1,ESN2,Rep2,"A",ASN) = Value of child
+13 ; attribute
+14 ; Notes : XMLARR must be a global array (i.e. no local arrays)
+15 ; : PRSARR is initialized (i.e KILLed) on input
+16 IF $GET(XMLARR)=""
QUIT
+17 IF '$DATA(@XMLARR)
QUIT
+18 IF $GET(PRSARR)=""
QUIT
+19 NEW HDICBK,SUBNUM,TAGNAME
+20 NEW ESUBS,EINDX,ASUBS,AINDX,DATA
+21 SET ESUBS=$NAME(@PRSARR@("ESUBS"))
+22 SET EINDX=$NAME(@PRSARR@("EINDX"))
+23 SET ASUBS=$NAME(@PRSARR@("ASUBS"))
+24 SET AINDX=$NAME(@PRSARR@("AINDX"))
+25 SET DATA=$NAME(@PRSARR@("DATA"))
+26 ;Set callbacks
+27 SET HDICBK("STARTDOCUMENT")="STRTDOC^HDISVM01"
+28 SET HDICBK("ENDDOCUMENT")="ENDDOC^HDISVM01"
+29 SET HDICBK("DOCTYPE")="DOCTYPE^HDISVM01"
+30 SET HDICBK("STARTELEMENT")="STRTLMNT^HDISVM01"
+31 SET HDICBK("ENDELEMENT")="ENDLMNT^HDISVM01"
+32 SET HDICBK("CHARACTERS")="CHARS^HDISVM01"
+33 SET HDICBK("PI")="PI^HDISVM01"
+34 SET HDICBK("EXTERNAL")="EXTERN^HDISVM01"
+35 SET HDICBK("NOTATION")="NOTATION^HDISVM01"
+36 SET HDICBK("COMMENT")="COMMENT^HDISVM01"
+37 SET HDICBK("ERROR")="ERROR^HDISVM01"
+38 ;Parse XML document using SAX
+39 KILL @PRSARR
+40 DO EN^MXMLPRSE(XMLARR,.HDICBK,"")
+41 QUIT
+42 ;
STRTDOC ;Start document
+1 QUIT
+2 ;
ENDDOC ;End document
+1 QUIT
+2 ;
DOCTYPE(ROOT,PUBID,SYSID) ;DOCTYPE declaration
+1 QUIT
+2 ;
STRTLMNT(NAME,ATTRLIST) ;Start element
+1 NEW ESN,REP,ATTR,ASN,TMPREF
+2 ;Determine element subscript number
+3 SET ESN=+$GET(@EINDX@(NAME))
+4 IF 'ESN
Begin DoDot:1
+5 SET ESN=1+$ORDER(@ESUBS@(""),-1)
+6 SET @ESUBS@(ESN)=NAME
+7 SET @EINDX@(NAME)=ESN
End DoDot:1
+8 ;Determine repetition number
+9 SET REP=1+$ORDER(@DATA@(ESN,""),-1)
+10 ;Add element subscript number and repetition number to output array
+11 SET TMPREF=$$OREF^DILF(DATA)
+12 SET TMPREF=TMPREF_ESN_","_REP_","
+13 SET DATA=$$CREF^DILF(TMPREF)
+14 ;Store attributes
+15 SET ATTR=""
+16 FOR
SET ATTR=$ORDER(ATTRLIST(ATTR))
IF ATTR=""
QUIT
Begin DoDot:1
+17 ;Get attribute subscript number
+18 SET ASN=+$GET(@AINDX@(ESN,ATTR))
+19 IF 'ASN
Begin DoDot:2
+20 SET ASN=1+$ORDER(@ASUBS@(""),-1)
+21 SET @ASUBS@(ESN,ASN)=ATTR
+22 SET @AINDX@(ESN,ATTR)=ASN
End DoDot:2
+23 ;Store value
+24 SET @DATA@("A",ASN)=ATTRLIST(ATTR)
End DoDot:1
+25 QUIT
+26 ;
ENDLMNT(NAME) ;End element
+1 NEW TMPREF,SUBCNT,SUBCHK
+2 ;Remove element subscript number and repition number from output array
+3 SET TMPREF=$$OREF^DILF(DATA)
+4 SET SUBCNT=$LENGTH(TMPREF,",")
+5 SET SUBCHK=SUBCNT-3
+6 IF SUBCHK>0
SET TMPREF=$PIECE(TMPREF,",",1,SUBCHK)_","
+7 IF SUBCHK<1
SET TMPREF=$PIECE(TMPREF,"(",1)_"("
+8 SET DATA=$$CREF^DILF(TMPREF)
+9 QUIT
+10 ;
CHARS(TEXT) ;Non-markup content
+1 ;Store element value
+2 SET @DATA@("V")=TEXT
+3 QUIT
+4 ;
PI(TARGET,TEXT) ;Processing instruction
+1 QUIT
+2 ;
EXTERN(SYSID,PUBID,GLOBAL) ;External entity reference
+1 QUIT
+2 ;
NOTATION(NAME,SYSID,PUBID) ;Notation declaration
+1 QUIT
+2 ;
+1 QUIT
+2 ;
ERROR(ERR) ;Error
+1 QUIT
+2 ;
UNESC(TEXT) ;Convert escaped characters
+1 ;Assumes TEXT is not corrupt
+2 NEW ESCBEG,ESCEND,ESCTXT,ESCCHAR,OUTPUT
+3 SET TEXT=$GET(TEXT)
+4 IF TEXT=""
QUIT TEXT
+5 IF TEXT'["&"
QUIT TEXT
+6 ;Do conversion
+7 SET OUTPUT=""
+8 FOR
IF TEXT'["&"
QUIT
Begin DoDot:1
+9 ;Find escaped character
+10 SET ESCBEG=$FIND(TEXT,"&")
+11 SET ESCEND=$FIND(TEXT,";",ESCBEG)
+12 SET ESCTXT=$EXTRACT(TEXT,ESCBEG,ESCEND-2)
+13 ;Convert escaped character
+14 SET ESCCHAR=""
+15 IF ESCTXT="amp"
SET ESCCHAR="&"
+16 IF ESCTXT="lt"
SET ESCCHAR="<"
+17 IF ESCTXT="gt"
SET ESCCHAR=">"
+18 IF ESCTXT="apos"
SET ESCCHAR="'"
+19 IF ESCTXT="quot"
SET ESCCHAR=$CHAR(34)
+20 ;Replace escaped character with actual character
+21 SET OUTPUT=OUTPUT_$EXTRACT(TEXT,1,ESCBEG-2)_ESCCHAR
+22 ;Continue processing rest of string
+23 SET TEXT=$EXTRACT(TEXT,ESCEND,$LENGTH(TEXT))
End DoDot:1
+24 ;Add on remainder of text
+25 SET OUTPUT=OUTPUT_TEXT
+26 QUIT OUTPUT
