[Xapian-tickets] [Xapian] #448: Allow usage of custom stemmers

[Xapian]

#448: Allow usage of custom stemmers
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 Reporter:  esizikov     |       Owner:  olly
     Type:  enhancement  |      Status:  new 
 Priority:  normal       |   Milestone:      
Component:  Other        |     Version:      
 Severity:  normal       |    Keywords:      
Blockedby:               |    Platform:  All 
 Blocking:               |  
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Comment(by esizikov):

 Personally I need in this feature to be available from Python bindings.
 For that to work I used a very small patch of both Xapian and Xapian
 bindings v. 1.0.17 (see attached patches).

 What it does is simple declares the destructor of Xapian::Stem (the first
 patch) to be virtual which enables usage of SWIG ''directors' for the Stem
 class (the second patch).

 With patched Xapian and Xapian bindings it becomes possible to subclass
 the Xapian::Stem and Xapian::Stem::Internal with the latter to use another
 stemmer (personally I'm using Hunspell for that).

 Current shortcommings:
  1. in Python the subclassed HunspellStem.__call__() function doesn't
 accept Unicode objects. At the same time the original
 xapian.Stem.__call__() does support Unicode object, thus I missed
 something. Could you give me a hint how to fix that?

-- 
Ticket URL: <http://trac.xapian.org/ticket/448#comment:1>
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