Encoding Tokens as XML

The sequence of tokens returned by your stored procedure must be represented as an XML 1.0 document. The XML document must be valid with respect to the XML Schemas given in the following sections.

• XML Schema for No-Location_ User-defined Indexing Procedure

• XML Schema for User-defined Indexing Procedure with Location

• XML Schema for User-defined Lexer Query Procedure

Limitations

To boost performance of this feature, the XML parser in Oracle Text will not perform validation and will not be a full-featured XML compliant parser. This implies that only minimal XML features will be supported. The following XML features are not supported:

• Document Type Declaration (for example, <!DOCTYPE [...]>) and therefore entity declarations. Only the following built-in entities can be referenced: lt, gt, amp, quot, and apos.

• CDATA sections.

• Comments.

• Processing Instructions.

• XML declaration (for example, <?xml version="1.0" ...?>).

• Namespaces.

• Use of elements and attributes other than those defined by the corresponding XML Schema.

• Character references (for example ট).

• xml:space attribute.

• xml:lang attribute