Difference between revisions of "XQuery Development Tools/Extension points"

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(Describe tokenizer extension point.)
 
(Add parser extension point definition)
 
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XQDT provides a tokenizer and an ad-hoc incremental parser for the XQuery family languages standardized (or being standardized) by the W3C. Vendors-specific language extension can be achieved by providing vendor-specific lexer and parser, using the following extension points:  
 
XQDT provides a tokenizer and an ad-hoc incremental parser for the XQuery family languages standardized (or being standardized) by the W3C. Vendors-specific language extension can be achieved by providing vendor-specific lexer and parser, using the following extension points:  
  
- org.eclipse.wst.xquery.sse.core.tokenizer: XQuery tokenizer. Must implement ITokenizer. XQDT tokenizer is based on [http://jflex.de/ JFlex]. Since JFlex does not come with a extension mechanism, one solution is for each vendor to change directly the base tokenizer and to manually patch any changes.
+
- org.eclipse.wst.xquery.sse.core.tokenizer: XQuery tokenizer. Must implement ITokenizer. XQDT tokenizer is based on [http://jflex.de/ JFlex]. Since JFlex does not come with a extension mechanism, one solution is for each vendor to change directly the base tokenizer and to manually patch any changes.  
  
- to be defined: parser extension point.
+
- org.eclipse.wst.xquery.sse.core.modelBuilder: incremental XQuery parser responsible for updating the model (AST).

Latest revision as of 11:37, 16 July 2010

This page describes XQDT extension points.

[edit] Customizing lexer and parser

XQDT provides a tokenizer and an ad-hoc incremental parser for the XQuery family languages standardized (or being standardized) by the W3C. Vendors-specific language extension can be achieved by providing vendor-specific lexer and parser, using the following extension points:

- org.eclipse.wst.xquery.sse.core.tokenizer: XQuery tokenizer. Must implement ITokenizer. XQDT tokenizer is based on JFlex. Since JFlex does not come with a extension mechanism, one solution is for each vendor to change directly the base tokenizer and to manually patch any changes.

- org.eclipse.wst.xquery.sse.core.modelBuilder: incremental XQuery parser responsible for updating the model (AST).