Invalid rule in filter grammar

• Key: DIRSERVER-226
• Type: Bug
• Status: Closed
• Resolution: Won't Fix
• Priority: Minor
• Assignee: Alex Karasulu
• Reporter: Emmanuel Lecharny
• Component/s: ldap
• Affects Version/s: pre-1.0
• Fix Version/s: pre-1.0

Description

The Filter grammar contains an invalid production rule, in respect with RFC 2254 :

item returns [LeafNode node]
{
    node = null;
}
    : node=simple | node=extensible |
    ( COLONEQUALS
...

COLONEQUALS is not valid. The RHS should be :

    : node=simple | node=extensible

Comments

[Alex Karasulu]

This is actually correct. Note that I had to break apart the extensible grammar across productions. The COLONEQUALS value is actually being used to create an extensible object as can be seen below:

item returns [LeafNode node]
{
    node = null;
}
    : node=simple | node=extensible |
    ( COLONEQUALS
        {
            selector.select( valueLexer );
            String value = ( ( String ) valueParser.value( null ) ).trim();
            node = new ExtensibleNode( null, value, null, false );
        }
    )
    ;

invalid