[antlr-interest] ANTLR for syntax-directed editors

[Gerald B. Rosenberg]

You may wish to look at Eclipse for design if not to use as a 
framework for implementation.  The JDT contains a rather 
high-performance AST based syntax directed editor with interactive 
content dependent completion assist mechanism.

To the specific question of querying, ANTLR is quite fast, so having 
an instance repeatedly do a full lex and parse of short phrases, to 
produce a suggestion list, is not much of a burden between 
keystrokes.  Can be shortcut further by filtering for significant 
keystrokes that signal a likely change or narrowing of the suggestion list.

At 02:37 PM 7/24/2007, you wrote:
>We are experimenting with ANTLR at NASA for building grammars that 
>express the naming rules for space vehicles, their subsystems, 
>devices and parameters, as needed in Modeling, Simulation and 
>Telemetry. We are exploring how we could query the grammar at 
>run-time to provide an editor with the knowledge of the next follow 
>symbols (and other attributes). Has anyone used, or know of work on, 
>ANTLR for interactive syntax-directed editing?
>
>--
>Ralph Hodgson
>Executive Partner
>TopQuadrant, Inc., www.topquadrant.com
>Office: (724) 846-9300 ext. 211,
>Direct: (703) 960-1028, Fax: (425) 955-5469, Cell: (781) 789-1664
>blog: http://topquadrant.typepad.com/ralph_hodgson/