41 lines
786 B
Perl
41 lines
786 B
Perl
|
#! /usr/local/bin/perl -ws
|
||
|
|
|
||
|
|
use Parse::RecDescent;
|
||
|
|
|
||
|
|
undef $::RD_WARN;
|
||
|
|
|
||
|
|
my $parse = Parse::RecDescent->new(<<'EOGRAMMAR');
|
||
|
|
|
||
|
|
{use Tie::Hash; }
|
||
|
|
|
||
|
|
line: <rulevar: local %max; tie %max, Tie::StdHash'; %max = (count=>0) >
|
||
|
|
|
||
|
|
line: seplist[sep=>',']
|
||
|
|
| seplist[sep=>':']
|
||
|
|
| seplist[sep=>" "]
|
||
|
|
| { $max{item} }
|
||
|
|
|
||
|
|
seplist: <skip:"">
|
||
|
|
<leftop: /[^$arg{sep}]*/ "$arg{sep}" /[^$arg{sep}]*/>
|
||
|
|
{ $max{count} = @{$max{item} = $item[2]}
|
||
|
|
if @{$item[2]} > $max{count};
|
||
|
|
}
|
||
|
|
<reject>
|
||
|
|
|
||
|
|
EOGRAMMAR
|
||
|
|
|
||
|
|
while (<DATA>)
|
||
|
|
{
|
||
|
|
chomp;
|
||
|
|
my $res = $parse->line($_);
|
||
|
|
print '[', join('][', @$res), "]\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
__DATA__
|
||
|
|
c,o,m,m,a,s,e,p,a,r,a,t,e,d
|
||
|
|
c:o:l:o:n:s:e:p:a:r:a:t:e:d
|
||
|
|
s p a c e s e p a r a t e d
|
||
|
|
m u:l t i,s:ep ar:a,ted
|
||
|
|
m u:l,t i,s:ep ar:a,ted
|
||
|
|
m:u:l,t i,s:ep ar:a,ted
|