Interstage Shunsaku Data Manager Application Development Guide - Microsoft(R) Windows(R) 2000/ Microsoft(R) Windows Server(TM) 2003 - - UNIX -

E.3.2 Use @ as the Starting Character for the Element Name

If @ is used as the starting character for the element name, the element cannot be searched even it is specified in the path expression.

In the rule of XML, @ cannot be used as the starting character for the element name.

The following examples assume that Documents A and B below, exist.

Document A

<doc>
  <employee id="0001">
    smith
  </employee>
</doc>

Document B

<doc>
  <employee>
    <@id>0001 </@id>
    <name>smith</name>
  </employee>
</doc>

Example 1

Search for document whose employee id (id) consists of the keyword '0001'.

/doc/employee/@id='0001'

Result: Only Document A is returned. (Document B is not returned)

When specifying the attribute expression in the search expression, if the element name specified in the path element starts with @, a syntax error will occur.

Document A

<doc>
  <@employee>
    <id>0001 </id>
    <name>smith</name>
  </@employee>
</doc>

Example 2

Search for document whose employee id (id) consists of the keyword '0001'.

/doc/@employee/id='0001'

Result: A syntax error will occur.