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Bug 17163

Summary:	editor to use antlr.g
Product:	obsolete	Reporter:	_ derrick <derrick>
Component:	antlr	Assignee:	issues@obsolete <issues>
Status:	RESOLVED FIXED
Severity:	blocker	CC:	mmetelka
Priority:	P4
Version:	3.x
Hardware:	All
OS:	All
Issue Type:	TASK	Exception Reporter:

Description _ derrick 2001-10-31 13:04:26 UTC

The editor currently has a syntax subsystem (e.g. AntlrSyntax.java) based on
similar looking code in the JSP editor.  Since the definitive syntax for .g
files is the antlr.g file rpovided with Antlr, the syntax subsystem should
instead be based on a lexer and parser generated from (a modified) antlr.g.
There will need to be a squish layer that translates antlr generated tokens into
the tokens recognised by the editor syntax coloring system.

Since a lot of the 'value add' in a .g file is the java code in the header
sections and embedded in rules, this too should be syntax colored, probably by
using the context switching capabilities in Antlr 2.7.1 to switching to/from a
java lexer/parser in mid token stream.

Comment 1 Jesse Glick 2001-10-31 13:41:31 UTC

You may want to talk to Miloslav Metelka and ask about the lexer
module which is in netbeans.org but I think does not yet have sources
committed to it.

Comment 2 Miloslav Metelka 2001-10-31 16:55:43 UTC

Regarding the lexer module I'm just waiting for the legal issues to
include antlr.jar into our nbextra repository. Then I will perform the
initial checkin.
Antlr is currently one of the two supported lexer generators together
with javacc. The antlr 2.7.1 should generate more efficient code for
unicode which is good.
The language embedding will also be supported.
We definitely want the lexer module to be used for syntax coloring in
3.4.I'll write to nbdev once the initial checkin into the lexer module
will be performed.

Comment 3 Jiri Prox 2007-09-17 21:47:39 UTC

Obsolete milestone, please reevaluate

Comment 4 Miloslav Metelka 2007-09-18 08:41:03 UTC

The antlr was later added to the lexer module and was functioning there so I consider this as fixed.