Your expressions and subexpressions look a little too complicated to me. Try setting the two variables :
$RD_TRACE = 1;
$RD_HINT = 1;

[download]
And watch what happens. The ')' that it prints is the result of the first set of brackets (if you dont create any actions, it returns the last thing that successfully matched.) It threw the rest away as it couldnt match it.
Heres a snippet of something that I was using to evaluate expressions, maybe it helps:
condition: booleanexpr | '&&' booleanexpr | '||' booleanexpr 

booleanexpr: '!' booleanexpr 
{
    $return = $item[1] . $item[2];
}
| '(' booleanexpr ')'
{
    $return = $item[1] . $item[2] . $item[3];
}
| Value_op comparator Value_op 
{
    $return = $item[1] . $item[2] . $item[3];
}

comparator: '==' | '<' | '>' | '<=' | '>=' | '!='

Value_op: operation | Value

Value: String | Number | Float

operation: operator plusminus(?) 
{
    my $op;
    $op = '';
    if(@{$item[2]})
    {
        $op = $item[2]->[0];
    }
    $return = $item[1] . $op;
    1;
}

plusminus: '+' operator 
{
    $return = $item[1] . $item[2];
}
 | '-' operator 
{
    $return = $item[1] . $item[2];
}

operator: ('*' Value | '/' Value) | '(' operation ')' | Value

[download]
C.

In reply to Re: Parse::RecDescent and mini-language parsing by castaway
in thread Parse::RecDescent and mini-language parsing by Flame

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • 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:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.