我正在尝试使用 tcl 和 tdom 包解析 XML。我在执行此操作时遇到了麻烦,因为我要解析的节点是具有多个命名空间的节点的子节点。我将如何解析 realmCode 或 title 元素?以下是我尝试过的:
package require tdom
set XML {<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="http://www.cerner.com/cda_stylesheet/" ?>
<ClinicalDocument xmlns="urn:hl7-org:v3" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:sdtc="urn:hl7-org:sdtc" xsi:schemaLocation="urn:hl7-org:v3 ../../../CDA%20R2/cda-schemas-and-samples/infrastructure/cda/CDA.xsd" classCode="DOCCLIN" moodCode="EVN">
<realmCode code="US" />
<title>Discharge Summary</title>
</ClinicalDocument>}
set nsmap {
a urn:hl7-org:v3
x http://www.w3.org/2001/XMLSchema-instance
s urn:hl7-org:sdtc
}
set doc [dom parse $XML]
set root [$doc documentElement]
set node [$root selectNodes -namespaces $nsmap "/a:ClinicalDocument/title"]
#set node [$root selectNodes "/ClinicalDocument/title"] ;# tried this as well - does not work
$doc delete