基于另一个标签的条件检查 [英] Conditional Check based on another Tag

问题描述

我有一个具有结构的 xml:

I have an xml which has a structure:

<?xml version="1.0" encoding="utf-8" ?>
<XYZInquiry>
    <Source>ABC</Source>
    <Info>19991234</Info> 
<RawData>
        <EmailAddress>[e-mail]</EmailAddress>
</RawData>
</XYZInquiry>

和相应的 XSD 验证为:

and corresponding XSD for validation as:

<?xml version="1.0" encoding="utf-8"?>
<xsd:schema id="XYZInquiry" elementFormDefault="qualified" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
    <xsd:element name="XYZInquiry">
        <xsd:complexType>
            <xsd:all>
                <xsd:element name="Source" minOccurs="1" maxOccurs="1" type="xsd:string" />
                <xsd:element name="Info" minOccurs="1" maxOccurs="1" type="xsd:string" />
<xsd:element name="RawData" minOccurs="0" maxOccurs="1">
<xsd:complexType>
                        <xsd:sequence>
                        <xsd:element name="EmailAddress" minOccurs="0" maxOccurs="1"/>
</xsd:element>
                    </xsd:sequence>
                </xsd:complexType>

我需要阅读信息标签，根据前 4 位数字，我需要在 RawData 标签上设置条件.即如果 Info 值以 1234 开头，则允许 RawData 标签，否则无效.请指教.

I need to read Info Tag and based on the first 4 digits, I need to put condition on the RawData Tag. i.e. if The Info value starts with 1234, then RawData Tag is allowed else Invalid. Kindly advise.

推荐答案

你要的是 共现约束.这在 XSD 1.1(未广泛实现)和 Scehmatron 中是可能的.在 XSD 1.0 中不可能

What you are asking for is co-occurrence constraints. This is possible in XSD 1.1 (not widely implemented) and Scehmatron. It is not possible in Not possible in XSD 1.0

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