XML DTD 验证：声明子集中不允许使用字符

Question

尽管存在根元素并已将所有属性插入 DTD 的 ATTLIST 中，但我在 w3 验证器上遇到了几个错误：

Error Line 17, Column 9: character "g" not allowed in declaration subset gender CDATA #REQUIRED>

Error Line 21, Column 45: there is no attribute "gender" … <person user="WhozYourDaddy" gender="male" email="whozyourdaddy@gmail.com">

Error Line 21, Column 58: there is no attribute "email" … <person user="WhozYourDaddy" gender="male" email="whozyourdaddy@gmail.com">

Error Line 29, Column 22: document type does not allow element "lastdownload" here <lastdownload> PokemonGo </lastdownload>

Error Line 30, Column 19: document type does not allow element "lastlogin" here <lastlogin> 12.03.2016 </lastlogin>

这是我的 XML:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE catalog [
<!ELEMENT catalog (person+)>
<!ELEMENT person (firstname,lastname,telephone,city,address, preferences, newsletter, downloads)>
<!ELEMENT firstname (#PCDATA)>
<!ELEMENT lastname (#PCDATA)>
<!ELEMENT telephone (#PCDATA)>
<!ELEMENT city (#PCDATA)>
<!ELEMENT address (#PCDATA)>
<!ELEMENT preferences (#PCDATA)>
<!ELEMENT newsletter (#PCDATA)>
<!ELEMENT lastdownload (#PCDATA)>
<!ELEMENT lastlogin (#PCDATA)>
<!ELEMENT downloads (#PCDATA)>
<!ATTLIST person 
        user CDATA #REQUIRED>
        gender CDATA #REQUIRED>
        email CDATA #REQUIRED>
]>
<catalog>
        <person user="WhozYourDaddy" gender="male" email="whozyourdaddy@gmail.com">
        <firstname> X </firstname>
        <lastname> XXXX </lastname>
        <telephone> 06666666 </telephone>
        <city> ZZZZZ </city>
        <address> Azxxxxxh xxx </address>
        <preferences> Educational </preferences>
        <newsletter> Yes </newsletter>
        <lastdownload> PokemonGo </lastdownload>
        <lastlogin> 12.03.2016 </lastlogin>
        <downloads> 5 </downloads>
    </person>
</catalog>

Answer 1

有几个错误需要修复：

删除 ATTLIST.

>

将 lastdownload 和 lastlogin 添加到 catalog 的内容模型。

这是应用了所有修复的 XML：

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE catalog [
<!ELEMENT catalog (person+)>
<!ELEMENT person (firstname,lastname,telephone,city,address, preferences, 
                  newsletter, lastdownload, lastlogin, downloads)>
<!ELEMENT firstname (#PCDATA)>
<!ELEMENT lastname (#PCDATA)>
<!ELEMENT telephone (#PCDATA)>
<!ELEMENT city (#PCDATA)>
<!ELEMENT address (#PCDATA)>
<!ELEMENT preferences (#PCDATA)>
<!ELEMENT newsletter (#PCDATA)>
<!ELEMENT lastdownload (#PCDATA)>
<!ELEMENT lastlogin (#PCDATA)>
<!ELEMENT downloads (#PCDATA)>
<!ATTLIST person 
        user CDATA #REQUIRED
        gender CDATA #REQUIRED
        email CDATA #REQUIRED>
]>
<catalog>
  <person user="WhozYourDaddy" gender="male" email="whozyourdaddy@gmail.com">
    <firstname> X </firstname>
    <lastname> XXXX </lastname>
    <telephone> 06666666 </telephone>
    <city> ZZZZZ </city>
    <address> Azxxxxxh xxx </address>
    <preferences> Educational </preferences>
    <newsletter> Yes </newsletter>
    <lastdownload> PokemonGo </lastdownload>
    <lastlogin> 12.03.2016 </lastlogin>
    <downloads> 5 </downloads>
  </person>
</catalog>

XML DTD 验证：声明子集中不允许使用字符

XML DTD validation: character not allowed in declaration subset

xml

dtd

xml-validation