Beefy Boxes and Bandwidth Generously Provided by pair Networks
Your skill will accomplish
what the force of many cannot
 
PerlMonks  

Re: Parse::RecDescent grammar definition

by lancer (Beadle)
on Mar 21, 2011 at 12:10 UTC ( #894487=note: print w/ replies, xml ) Need Help??


in reply to Parse::RecDescent grammar definition

I get this when I try to run it:

ERROR: Internal error in generated parser code! (Hint: Set $::RD_HINT (or -RD_HINT if you're using "pe +rl -s") for hints on fixing these problems.) Can't call method "Format" on an undefined value at ./temp.pl line 17.

When run with "$::RD_HINT" set, as it recommends, I get this:

ERROR: Internal error in generated parser code! (Hint: Global symbol "%ite" requires explicit package +name at (eval 8) line 472. syntax error at (eval 8) line 475, near ") {" syntax error at (eval 8) line 480, near "} Parse::RecDescent::_trace" BEGIN not safe after errors- -compilation aborted at (eval 8) line 541. ) Can't call method "Format" on an undefined value at ./temp.pl line 20.

I'm using Perl version 5.12.

Update: Ok, the problem was that I copy-pasted the code, and one of the lines was broken from that. I've used the "download" link, and now it runs fine. (though with citromatik's original problem) (thanks, jethro!)


Comment on Re: Parse::RecDescent grammar definition
Select or Download Code
Re^2: Parse::RecDescent grammar definition
by citromatik (Curate) on Mar 21, 2011 at 12:56 UTC

    I don't have any problem running the example I posted in Perl 5.10:

    #!/usr/bin/perl use strict; use warnings; use Parse::RecDescent; my $p2 = Parse::RecDescent->new(q( hyphen : "-" option : "a" | "b" | "c" Format : Entry(s) Pre : hyphen option Post : option hyphen Entry : Pre | Post { use Data::Dumper; print Dumper \%ite +m;} )); $p2->Format('a-'); $p2->Format('-a');

    output:

    $VAR1 = { 'Post' => '-', '__RULE__' => 'Entry' };

    citromatik

Log In?
Username:
Password:

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://894487]
help
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others taking refuge in the Monastery: (10)
As of 2014-09-17 07:20 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    How do you remember the number of days in each month?











    Results (64 votes), past polls