Syntax Highlighting

abadi wrote on Sat Oct 28 13:43:44 MEST 2006:

Is it possible to customize the groupings of keywords which govern syntax
highlighting in EPIC 0.5x? I can't find anything equivalent to EPIC 0.3x
modes/perl.xml file which enabled you to do this as well as add keywords
to the ones defined by EPIC.

Thanks.

jploski wrote on Sat Oct 28 13:56:35 MEST 2006:

The current parser is ANTLR-based and not intended to be customizable. If
you wish, you can try the procedure described at http://e-p-i-c.sourceforge.net/devguide/devguide.html
and have a look at org.epic.core.parser (files perl.g and PerlLexerBase.java;
keyword sets are defined in the latter one).

The perl.g code is unintuitive, basically a series of evolving tweaks necessary
to 1) support the syntax highlighting test cases from org.epic.perleditor-test/workspace/EPICTest/syntax.pl
and 2) keep the performance at an acceptable level.

abadi wrote on Sat Oct 28 15:32:06 MEST 2006:

Thanks for the info. I see from the code that you dropped the KEYWORD3 set,
which is a problem if, like me, you prefer core Perl functions and vars
to have different highlighting. Was KEYWORD£ dropped for performance reasons?
 

jploski wrote on Sat Oct 28 15:55:23 MEST 2006:

The contents of KEYWORD3 were merged into KEYWORD2. For instance, I do not
see why one would want to highlight differently 'printf' (used to be KEYWORD2)
and 'sprintf' (used to be KEYWORD3)?

abadi wrote on Sat Oct 28 16:43:40 MEST 2006:

I agree that it does not make much sense to highlight 'printf' and 'sprintf'
differently but I find that highlighting schemes which distinguish between
variables and core functions make the code more readable.

Still, this is only a minor quibble which does not diminish my appreciation
of the effort you put into making Perl work under Eclipse. Thanks.

jploski wrote on Sat Oct 28 16:56:17 MEST 2006:

So you just want to be able to make variables appear another color than
keywords? This is an easy fix (indeed, I see that Keyword3 still appears
in the Preferences; I can easily add 'Variable' there).

abadi wrote on Sat Oct 28 17:16:24 MEST 2006:

Yes, this is what I was suggesting. Adding it as a 'Variable' item to the
prefs dialog will make it even clearer.