[Xapian-discuss] Perl bindings: QueryParser::OP_AND

[Olly Betts]

On Fri, Jul 14, 2006 at 12:32:15PM -0700, John Wang wrote:
> Thanks. That did it. I wasn't importing anything. Maybe it's not possible
> with OP_* but I can use the following (without quotes) fine without
> importing :db :
> 
> Search::Xapian::DB_CREATE_OR_OPEN

Right, I thought that was the correct syntax.

I'm not sure why it's different for OP_.  The only difference in
handling the two cases I can see in the bindings is in Xapian.pm:

    our @OP_NAMES;
    foreach (@{ $EXPORT_TAGS{'ops'} }) {
      $OP_NAMES[eval $_] = $_;
    }
    
    our @DB_NAMES;
    foreach (@{ $EXPORT_TAGS{'dbs'} }) {
      $DB_NAMES[eval $_] = $_;
    }

The latter case should be 'db' not 'dbs' so it currently doesn't do
anything since $EXPORT_TAGS{'dbs'} will be empty.  I'm not quite
sure what this code is for anyway.

> Perhaps that's not intentional and not recommended? I've moved to importing
> :db and using DB_CREATE_OR_OPEN unqualified for that.

I believe it is meant to work, though Alex is really the authority on this.
It's used in the test cases at least...

I don't have time to look into this further currently, and there is at least
an easy workaround, but I'll try to work out what's going on later.

Cheers,
    Olly