是否可以控制Relax中属性值的顺序?哪一个可以使用模式中的xs:assert来实现?
XML:
<body>
<h1 class="title">title</h1>
<h2 class="subtitle">subtitle</h2>
<p class="paragraph1">para text 1</p>
<p class="paragraph2">Para text 2</p>
<p class="paragraph3">Para text 2</p>
</body>类值应该是有序的,paragraph1应该始终放在第一位,paragraph2应该放在paragraph1之后。我在架构中尝试的断言:
<xs:assert test="p[1]/@class = 'paragraph1'
and ((every $i in p[2] satisfies $i/@class = 'paragraph2')
and (every $i in p[3] satisfies $i/@class = 'paragraph3')) "/>发布于 2017-05-17 05:22:14
用来表达问题描述的(紧凑语法) RelaxNG语法可以写成:
start = element body { h1?, h2?, p.paragraph1?, p.paragraph2?, p.paragraph3? }
h1 = element h1 { text & attribute class { string } }
h2 = element h2 { text & attribute class { string } }
p.paragraph1 = element p { text & attribute class { string "paragraph1" } }
p.paragraph2 = element p { text & attribute class { string "paragraph2" } }
p.paragraph3 = element p { text & attribute class { string "paragraph3" } }用RelaxNG XML语法表示:
<grammar xmlns="http://relaxng.org/ns/structure/1.0" datatypeLibrary="">
<start>
<element name="body">
<optional>
<ref name="h1"/>
</optional>
<optional>
<ref name="h2"/>
</optional>
<optional>
<ref name="p.paragraph1"/>
</optional>
<optional>
<ref name="p.paragraph2"/>
</optional>
<optional>
<ref name="p.paragraph3"/>
</optional>
</element>
</start>
<define name="h1">
<element name="h1">
<interleave>
<text/>
<attribute name="class">
<data type="string"/>
</attribute>
</interleave>
</element>
</define>
<define name="h2">
<element name="h2">
<interleave>
<text/>
<attribute name="class">
<data type="string"/>
</attribute>
</interleave>
</element>
</define>
<define name="p.paragraph1">
<element name="p">
<interleave>
<text/>
<attribute name="class">
<value type="string">paragraph1</value>
</attribute>
</interleave>
</element>
</define>
<define name="p.paragraph2">
<element name="p">
<interleave>
<text/>
<attribute name="class">
<value type="string">paragraph2</value>
</attribute>
</interleave>
</element>
</define>
<define name="p.paragraph3">
<element name="p">
<interleave>
<text/>
<attribute name="class">
<value type="string">paragraph3</value>
</attribute>
</interleave>
</element>
</define>
</grammar>https://stackoverflow.com/questions/44015970
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