source: FOIAVistA/trunk/r/HEALTH_DATA_AND_INFORMATICS-HDI/HDISVM01.m@ 1705

Last change on this file since 1705 was 628, checked in by George Lilly, 15 years ago

initial load of FOIAVistA 6/30/08 version

File size: 4.0 KB
Line 
1HDISVM01 ;BPFO/JRP - PARSE XML DOCUMENT USING SAX;12/20/2004
2 ;;1.0;HEALTH DATA & INFORMATICS;;Feb 22, 2005
3 ;
4SAX(XMLARR,PRSARR) ;Parse XML document using SAX interface
5 ; Input: XMLARR - Global array containing XML document (closed root)
6 ; PRSARR - Array to output parsed XML document (closed root)
7 ;Output: None
8 ; @PRSARR@("ESUBS",ESN) = Element name
9 ; @PRSARR@("EINDX",ElementName) = Subscript number (ESN)
10 ; @PRSARR@("ASUBS",ESN,ASN) = Attribute name
11 ; @PRSARR@("AINDX",ESN,AttributeName) = Subscript number (ASN)
12 ; @PRSARR@("DATA",ESN,Repetition,"V") = Value of element
13 ; @PRSARR@("DATA",ESN,Repetition,"A",ASN) = Value of attribute
14 ; @PRSARR@("DATA",ESN1,Rep1,ESN2,Rep2,"V") = Value of child
15 ; element
16 ; @PRSARR@("DATA",ESN1,Rep1,ESN2,Rep2,"A",ASN) = Value of child
17 ; attribute
18 ; Notes : XMLARR must be a global array (i.e. no local arrays)
19 ; : PRSARR is initialized (i.e KILLed) on input
20 Q:$G(XMLARR)=""
21 Q:'$D(@XMLARR)
22 Q:$G(PRSARR)=""
23 N HDICBK,SUBNUM,TAGNAME
24 N ESUBS,EINDX,ASUBS,AINDX,DATA
25 S ESUBS=$NA(@PRSARR@("ESUBS"))
26 S EINDX=$NA(@PRSARR@("EINDX"))
27 S ASUBS=$NA(@PRSARR@("ASUBS"))
28 S AINDX=$NA(@PRSARR@("AINDX"))
29 S DATA=$NA(@PRSARR@("DATA"))
30 ;Set callbacks
31 S HDICBK("STARTDOCUMENT")="STRTDOC^HDISVM01"
32 S HDICBK("ENDDOCUMENT")="ENDDOC^HDISVM01"
33 S HDICBK("DOCTYPE")="DOCTYPE^HDISVM01"
34 S HDICBK("STARTELEMENT")="STRTLMNT^HDISVM01"
35 S HDICBK("ENDELEMENT")="ENDLMNT^HDISVM01"
36 S HDICBK("CHARACTERS")="CHARS^HDISVM01"
37 S HDICBK("PI")="PI^HDISVM01"
38 S HDICBK("EXTERNAL")="EXTERN^HDISVM01"
39 S HDICBK("NOTATION")="NOTATION^HDISVM01"
40 S HDICBK("COMMENT")="COMMENT^HDISVM01"
41 S HDICBK("ERROR")="ERROR^HDISVM01"
42 ;Parse XML document using SAX
43 K @PRSARR
44 D EN^MXMLPRSE(XMLARR,.HDICBK,"")
45 Q
46 ;
47STRTDOC ;Start document
48 Q
49 ;
50ENDDOC ;End document
51 Q
52 ;
53DOCTYPE(ROOT,PUBID,SYSID) ;DOCTYPE declaration
54 Q
55 ;
56STRTLMNT(NAME,ATTRLIST) ;Start element
57 N ESN,REP,ATTR,ASN,TMPREF
58 ;Determine element subscript number
59 S ESN=+$G(@EINDX@(NAME))
60 I 'ESN D
61 .S ESN=1+$O(@ESUBS@(""),-1)
62 .S @ESUBS@(ESN)=NAME
63 .S @EINDX@(NAME)=ESN
64 ;Determine repetition number
65 S REP=1+$O(@DATA@(ESN,""),-1)
66 ;Add element subscript number and repetition number to output array
67 S TMPREF=$$OREF^DILF(DATA)
68 S TMPREF=TMPREF_ESN_","_REP_","
69 S DATA=$$CREF^DILF(TMPREF)
70 ;Store attributes
71 S ATTR=""
72 F S ATTR=$O(ATTRLIST(ATTR)) Q:ATTR="" D
73 .;Get attribute subscript number
74 .S ASN=+$G(@AINDX@(ESN,ATTR))
75 .I 'ASN D
76 ..S ASN=1+$O(@ASUBS@(""),-1)
77 ..S @ASUBS@(ESN,ASN)=ATTR
78 ..S @AINDX@(ESN,ATTR)=ASN
79 .;Store value
80 .S @DATA@("A",ASN)=ATTRLIST(ATTR)
81 Q
82 ;
83ENDLMNT(NAME) ;End element
84 N TMPREF,SUBCNT,SUBCHK
85 ;Remove element subscript number and repition number from output array
86 S TMPREF=$$OREF^DILF(DATA)
87 S SUBCNT=$L(TMPREF,",")
88 S SUBCHK=SUBCNT-3
89 I SUBCHK>0 S TMPREF=$P(TMPREF,",",1,SUBCHK)_","
90 I SUBCHK<1 S TMPREF=$P(TMPREF,"(",1)_"("
91 S DATA=$$CREF^DILF(TMPREF)
92 Q
93 ;
94CHARS(TEXT) ;Non-markup content
95 ;Store element value
96 S @DATA@("V")=TEXT
97 Q
98 ;
99PI(TARGET,TEXT) ;Processing instruction
100 Q
101 ;
102EXTERN(SYSID,PUBID,GLOBAL) ;External entity reference
103 Q
104 ;
105NOTATION(NAME,SYSID,PUBID) ;Notation declaration
106 Q
107 ;
108COMMENT(TEXT) ;Comment
109 Q
110 ;
111ERROR(ERR) ;Error
112 Q
113 ;
114UNESC(TEXT) ;Convert escaped characters
115 ;Assumes TEXT is not corrupt
116 N ESCBEG,ESCEND,ESCTXT,ESCCHAR,OUTPUT
117 S TEXT=$G(TEXT)
118 I TEXT="" Q TEXT
119 I TEXT'["&" Q TEXT
120 ;Do conversion
121 S OUTPUT=""
122 F Q:TEXT'["&" D
123 .;Find escaped character
124 .S ESCBEG=$F(TEXT,"&")
125 .S ESCEND=$F(TEXT,";",ESCBEG)
126 .S ESCTXT=$E(TEXT,ESCBEG,ESCEND-2)
127 .;Convert escaped character
128 .S ESCCHAR=""
129 .I ESCTXT="amp" S ESCCHAR="&"
130 .I ESCTXT="lt" S ESCCHAR="<"
131 .I ESCTXT="gt" S ESCCHAR=">"
132 .I ESCTXT="apos" S ESCCHAR="'"
133 .I ESCTXT="quot" S ESCCHAR=$C(34)
134 .;Replace escaped character with actual character
135 .S OUTPUT=OUTPUT_$E(TEXT,1,ESCBEG-2)_ESCCHAR
136 .;Continue processing rest of string
137 .S TEXT=$E(TEXT,ESCEND,$L(TEXT))
138 ;Add on remainder of text
139 S OUTPUT=OUTPUT_TEXT
140 Q OUTPUT
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