本文介绍如何为 Xdoclet2 的 Qtags 扩展配置 XML 描述文件，以便在 Eclipse Doclipse 插件中提供标签提示功能。文章详细展示了 Qtags 描述文件的内容，并解释了其在自定义 Ant 脚本生成过程中的作用。
使用Xdoclet2的Eclipse插件Doclipse，发现里面仅提供了Plugin的Tag的提示。而如果要自已写Plugin的时候就发现这个插件没有提供最原始的Tag的提示，即Qtags。参考了Doclipse的文档之后想自已动手写一个XML文件来提供提示功能。（Doclipse插件除了提供默认的Plugin 配文件，还可以从用户指定的一个文件查找符合格式的Plugin配置文件）。后来发现Xdoclet2的源码中的Plugin里居然有Qtags的Plugin，这样一来，代码比较搞笑，在Qtags的源码里面使用Qtags的标签生成Qtags标签提示文件。而我再次去Doclipse的包里找的时候，却没发现有Qtags的配置，郁闷。于是只有自已配Ant脚本，手动生成Qtags的配置文件。
<?xml version="1.0" encoding="ISO-8859-1"?>
<doclipse>
<description>@ tags</description>
<tag target="class" doc="" name="@command.class">
<attribute required="true" doc="" name="name"/>
<attribute required="false" doc="" name="generate"/>
</tag>
<tag target="" doc="class level tag to specify deprecated aliases of current tag. those will be
bombed on creation" name="@qtags.alias"/>
<tag target="class method" doc="specify one of the allowed values for tag or parameter" name="@qtags.allowed-value"/>
<tag target="method" doc="specify default value for tag or tag parameter. this can be used only
on method level." name="@qtags.default"/>
<tag target="class" doc="class level tag to specify deprecation of \@-tag." name="@qtags.deprecated"/>
<tag target="class" doc="class level tag to specify that marked interface shall be not generated
itself. ( But methods will be used ) This is necessary to allow tag interface inheritance. ( For example,
hibernate has load of collection tags which share a lot of common parameters. )" name="@qtags.ignore"/>
<tag target="method" doc="Specify the token used in list processing" name="@qtags.list-token"/>
<tag target="class" doc="class level tag to specify allowed locations. this tag cab ne used only on class level to specify
locations where usage is allowed. Recognized values are "class" "method" "constructor" "field"" name="@qtags.location"/>
<tag target="class" doc="specify that this tag can be use once on given program element" name="@qtags.once"/>
<tag target="method" doc="specify that certain value is required to be present." name="@qtags.required"/>
</doclipse>
<?xml version="1.0" encoding="ISO-8859-1"?>
<doclipse>
<description>@ tags</description>
<tag target="class" doc="" name="@command.class">
<attribute required="true" doc="" name="name"/>
<attribute required="false" doc="" name="generate"/>
</tag>
<tag target="" doc="class level tag to specify deprecated aliases of current tag. those will be
bombed on creation" name="@qtags.alias"/>
<tag target="class method" doc="specify one of the allowed values for tag or parameter" name="@qtags.allowed-value"/>
<tag target="method" doc="specify default value for tag or tag parameter. this can be used only
on method level." name="@qtags.default"/>
<tag target="class" doc="class level tag to specify deprecation of \@-tag." name="@qtags.deprecated"/>
<tag target="class" doc="class level tag to specify that marked interface shall be not generated
itself. ( But methods will be used ) This is necessary to allow tag interface inheritance. ( For example,
hibernate has load of collection tags which share a lot of common parameters. )" name="@qtags.ignore"/>
<tag target="method" doc="Specify the token used in list processing" name="@qtags.list-token"/>
<tag target="class" doc="class level tag to specify allowed locations. this tag cab ne used only on class level to specify
locations where usage is allowed. Recognized values are "class" "method" "constructor" "field"" name="@qtags.location"/>
<tag target="class" doc="specify that this tag can be use once on given program element" name="@qtags.once"/>
<tag target="method" doc="specify that certain value is required to be present." name="@qtags.required"/>
</doclipse>
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