Author: thebeing
Date: Sat Apr 21 23:34:36 2012
New Revision: 7671
URL: http://svn.gna.org/viewcvs/etoile?rev=7671&view=rev
Log:
Some tentative improvements to ParserKit:
* Make PKParseFail record where the failure occurred. Otherwise, printing
sensible diagnostics seems a bit difficult.
* Bindings are now scoped so that sub-expressions can access variables already
bound by super-expressions.
* Improved the built-in PEG grammar with a bunch of actions declarations,
though none of those are implemented in the delegate yet. Also added support
for referencing rules from the super-grammar (non-final syntax: `^rule') and
from foreign grammars (non-final syntax: `grammar::rule')
* Changed the way actions were printing themselves, for more complex grammars,
all the escaping done by [NSArray description] looks really ugly...
Modified:
trunk/Etoile/Languages/ParserKit/ParserKit.st
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