Comments on: Grammar::Tracer and Grammar::Debugger

By: jnthnwrthngtn

jnthnwrthngtn — Mon, 05 Dec 2011 17:48:21 +0000

If your grammar is called, for example, SalesExport, then you can parse a whole file with

my $parsetree = SalesExport.parsefile('filename');

What you get back is a tree of match objects.

For an example of working with the parsed data, see slide 37 and onwards in:

http://jnthn.net/papers/2010-nuug-little-n-large.pdf

Thanks,

Jonathan

By: Gernot

Gernot — Mon, 05 Dec 2011 14:22:18 +0000

Using your little grammar how would I parse a whole file and access its data in an idiomatic fashion? I faintly remember there was a Grammar::parse method …

By: payload

payload — Sun, 04 Dec 2011 13:53:13 +0000

Well i’m waiting for the metaprogramming post, cause although Grammar::Tracer is small and readable, knowing which methods to override and to implement is the more challenging stuff in Rakudo ;-)

make links to documentation! ^^