Another variation that doesn't produce the expected output:
our %HASH;
my $grammar = <<'END_OF_GRAMMAR';
startrule : from_clause
from_clause : 'from' dir(s)
{ print "-->$item{dir}<--\n"; }
dir : "hello"
| "world"
END_OF_GRAMMAR
my $parser = Parse::RecDescent->new($grammar);
$parser->startrule("from hello world");
use Data::Dumper;
say Dumper(\%HASH);
--output:--
--><--
$VAR1 = {};
Expected output:
-->SOMETHING<--
$VAR1 = {
"dirs" => "SOMETHING";
};
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
| |
For: |
|
Use: |
| & | | & |
| < | | < |
| > | | > |
| [ | | [ |
| ] | | ] |
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.