[Xapian-tickets] [Xapian] #447: QueryParser: Confusion with Boolean operator and -.

[Xapian]

#447: QueryParser: Confusion with Boolean operator and -.
-------------------------+--------------------------------------------------
 Reporter:  cworth       |       Owner:  olly    
     Type:  defect       |      Status:  assigned
 Priority:  normal       |   Milestone:  1.2.x   
Component:  QueryParser  |     Version:  1.1.3   
 Severity:  normal       |    Keywords:          
Blockedby:               |    Platform:  All     
 Blocking:               |  
-------------------------+--------------------------------------------------
Changes (by olly):

  * status:  new => assigned
  * component:  Other => QueryParser
  * milestone:  => 1.2.x


Comment:

 {{{
 a AND -foo:b
 }}}

 This is currently a syntax error, so the !QueryParser switches to a fall
 back mode of parsing it without boolean operators, love, or hate enabled.
 That certainly isn't helpful in this case.

 As a workaround, you can use this query instead, since AND is implicit for
 filters:

 {{{
 a -foo:b
 }}}

 I've attached a patch, but although it's simple, the implications of it
 aren't so clear.  It seems to fix this case, and the changes it makes to
 the parsing of existing testcases look like they are just different
 representations with the same meaning, so it's probably OK, and I'd like
 to hear if it works for you.

 Marking for 1.2.x for now, as this doesn't require ABI or API changes.

-- 
Ticket URL: <http://trac.xapian.org/ticket/447#comment:2>
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