dictd-wordnet: Make wordnet available via local dictd.

pkgs/servers/dict/dictd-wordnet.nix

···
+{stdenv, fetchsvn, python, wordnet, writeScript}:
+
+stdenv.mkDerivation rec {
+  version = "542";
+  name = "dict-db-wordnet-${version}";
+
+  buildInputs = [python wordnet];
+  convert = ./wordnet_structures.py;
+
+  builder = writeScript "builder.sh" ''
+    . ${stdenv}/setup
+    ensureDir $out/share/dictd/
+    cd $out/share/dictd
+
+    for i in ${wordnet}/dict/data.*; do
+      DATA="$DATA `echo $i | sed -e s,data,index,` $i";
+    done
+
+    python ${convert} $DATA
+    echo en_US.UTF-8 > locale
+  '';
+
+  meta = {
+    description = "dictd-compatible version of WordNet";
+
+    longDescription =
+      '' WordNet® is a large lexical database of English. This package makes
+         the wordnet data available to dictd and by extension for lookup with
+         the dict command. '';
+
+    homepage = http://wordnet.princeton.edu/;
+
+    maintainers = [ stdenv.lib.maintainers.mornfall ];
+    platforms = stdenv.lib.platforms.all;
+  };
+}

pkgs/servers/dict/wordnet_structures.py

···
+#!/usr/bin/env python
+#Copyright 2007 Sebastian Hagen
+# This file is part of wordnet_tools.
+
+# wordnet_tools is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2
+# as published by the Free Software Foundation
+
+# wordnet_tools is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with wordnet_tools; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+
+# This program requires python >= 2.4.
+
+# This program converts wordnet index/data file pairs into dict index/data
+# files usable by dictd.
+# This is basically a reimplementation of the wnfilter program by Rik Faith,
+# which unfortunately doesn't work correctly for wordnet files in the newer
+# formats. This version of wordnet_structures whould parse wordnet 2.1 files
+# correctly, and create output very similar to what wnfilter would have
+# written.
+
+import datetime
+from textwrap import TextWrapper
+
+CAT_ADJECTIVE = 0
+CAT_ADVERB = 1
+CAT_NOUN = 2
+CAT_VERB = 3
+
+category_map = {
+   'n': CAT_NOUN,
+   'v': CAT_VERB,
+   'a': CAT_ADJECTIVE,
+   's': CAT_ADJECTIVE,
+   'r': CAT_ADVERB
+}
+
+
+class WordIndex:
+   def __init__(self, lemma, category, ptrs, synsets, tagsense_count):
+      self.lemma = lemma
+      self.category = category
+      self.ptrs = ptrs
+      self.synsets = synsets
+      self.tagsense_count = tagsense_count
+   
+   @classmethod
+   def build_from_line(cls, line_data, synset_map):
+      line_split = line_data.split()
+      lemma = line_split[0]
+      category = category_map[line_split[1]]
+      synset_count = int(line_split[2],10)
+      ptr_count = int(line_split[3],10)
+      ptrs = [line_split[i] for i in range(3, 3+ptr_count)]
+      tagsense_count = int(line_split[5 + ptr_count],10)
+      synsets = [synset_map[int(line_split[i],10)] for i in range(6 + ptr_count, 6 + ptr_count + synset_count)]
+      return cls(lemma, category, ptrs, synsets, tagsense_count)
+   
+   @classmethod
+   def build_from_file(cls, f, synset_map, rv_base=None):
+      if (rv_base is None):
+         rv = {}
+      else:
+         rv = rv_base
+         
+      for line in f:
+         if (line.startswith('  ')):
+            continue
+         wi = cls.build_from_line(line, synset_map)
+         word = wi.lemma.lower()
+         if not (word in rv):
+            rv[word] = []
+         rv[word].append(wi)
+      return rv
+
+   def __repr__(self):
+      return '%s%s' % (self.__class__.__name__, (self.lemma, self.category, self.ptrs, self.synsets, self.tagsense_count))
+   
+   
+class WordIndexDictFormatter(WordIndex):
+   category_map_rev = {
+      CAT_NOUN: 'n',
+      CAT_VERB: 'v',
+      CAT_ADJECTIVE: 'adj',
+      CAT_ADVERB: 'adv'
+   }
+   linesep = '\n'
+   LINE_WIDTH_MAX = 68
+   prefix_fmtf_line_first = '%5s 1: '
+   prefix_fmtn_line_first = '         '
+   prefix_fmtf_line_nonfirst = '%5d: '
+   prefix_fmtn_line_nonfirst = '       '
+   
+   def dict_str(self):
+      tw = TextWrapper(width=self.LINE_WIDTH_MAX,
+         initial_indent=(self.prefix_fmtf_line_first % self.category_map_rev[self.category]),
+         subsequent_indent=self.prefix_fmtn_line_first)
+         
+      lines = (tw.wrap(self.synsets[0].dict_str()))
+      i = 2
+      for synset in self.synsets[1:]:
+         tw = TextWrapper(width=self.LINE_WIDTH_MAX,
+            initial_indent=(self.prefix_fmtf_line_nonfirst % i),
+            subsequent_indent=self.prefix_fmtn_line_nonfirst)
+         lines.extend(tw.wrap(synset.dict_str()))
+         i += 1
+      return self.linesep.join(lines)
+
+
+class Synset:
+   def __init__(self, offset, ss_type, words, ptrs, gloss, frames=()):
+      self.offset = offset
+      self.type = ss_type
+      self.words = words
+      self.ptrs = ptrs
+      self.gloss = gloss
+      self.frames = frames
+      self.comments = []
+   
+   @classmethod
+   def build_from_line(cls, line_data):
+      line_split = line_data.split()
+      synset_offset = int(line_split[0],10)
+      ss_type = category_map[line_split[2]]
+      word_count = int(line_split[3],16)
+      words = [line_split[i] for i in range(4, 4 + word_count*2,2)]
+      ptr_count = int(line_split[4 + word_count*2],10)
+      ptrs = [(line_split[i], line_split[i+1], line_split[i+2], line_split[i+3]) for i in range(5 + word_count*2,4 + word_count*2 + ptr_count*4,4)]
+     
+      tok = line_split[5 + word_count*2 + ptr_count*4]
+      base = 6 + word_count*2 + ptr_count*4
+      if (tok != '|'):
+         frame_count = int(tok, 10)
+         frames = [(int(line_split[i+1],10), int(line_split[i+2],16)) for i in range(base, base + frame_count*3, 3)]
+         base += frame_count*3 + 1
+      else:
+         frames = []
+     
+      line_split2 = line_data.split(None, base)
+      if (len(line_split2) < base):
+         gloss = None
+      else:
+         gloss = line_split2[-1]
+     
+      return cls(synset_offset, ss_type, words, ptrs, gloss, frames)
+   
+   @classmethod
+   def build_from_file(cls, f):
+      rv = {}
+      comments = []
+     
+      for line in f:
+         if (line.startswith('  ')):
+            line_s = line.lstrip().rstrip('\n')
+            line_elements = line_s.split(None,1)
+            try:
+               int(line_elements[0])
+            except ValueError:
+               continue
+            if (len(line_elements) == 1):
+               line_elements.append('')
+            comments.append(line_elements[1])
+            continue
+         synset = cls.build_from_line(line.rstrip())
+         rv[synset.offset] = synset
+
+      return (rv, comments)
+
+   def dict_str(self):
+      rv = self.gloss
+      if (len(self.words) > 1):
+         rv += ' [syn: %s]' % (', '.join([('{%s}' % word) for word in self.words]))
+      return rv
+
+   def __repr__(self):
+      return '%s%s' % (self.__class__.__name__, (self.offset, self.type, self.words, self.ptrs, self.gloss, self.frames))
+
+
+class WordnetDict:
+   db_info_fmt = '''This file was converted from the original database on:
+          %(conversion_datetime)s
+
+The original data is available from:
+     %(wn_url)s
+
+The original data was distributed with the notice shown below. No
+additional restrictions are claimed.  Please redistribute this changed
+version under the same conditions and restriction that apply to the
+original version.\n\n
+%(wn_license)s'''
+
+   datetime_fmt = '%Y-%m-%dT%H:%M:%S'
+   base64_map = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
+   
+   def __init__(self, wn_url, desc_short, desc_long):
+      self.word_data = {}
+      self.wn_url = wn_url
+      self.desc_short = desc_short
+      self.desc_long = desc_long
+      self.wn_license = None
+   
+   def wn_dict_add(self, file_index, file_data):
+      file_data.seek(0)
+      file_index.seek(0)
+      (synsets, license_lines) = Synset.build_from_file(file_data)
+      WordIndexDictFormatter.build_from_file(file_index, synsets, self.word_data)
+      if (license_lines):
+         self.wn_license = '\n'.join(license_lines) + '\n'
+   
+   @classmethod
+   def base64_encode(cls, i):
+      """Encode a non-negative integer into a dictd compatible base64 string"""
+      if (i < 0):
+         raise ValueError('Value %r for i is negative' % (i,))
+      r = 63
+      e = 1
+      while (r < i):
+         e += 1
+         r = 64**e - 1
+     
+      rv = ''
+      while (e > 0):
+         e -= 1
+         d = (i / 64**e)
+         rv += cls.base64_map[d]
+         i = i % (64**e)
+      return rv
+     
+   @classmethod
+   def dict_entry_write(cls, file_index, file_data, key, entry, linesep='\n'):
+      """Write a single dict entry for <key> to index and data files"""
+      entry_start = file_data.tell()
+      file_data.write(entry)
+      entry_len = len(entry)
+      file_index.write('%s\t%s\t%s%s' % (key, cls.base64_encode(entry_start),
+            cls.base64_encode(entry_len), linesep))
+     
+   def dict_generate(self, file_index, file_data):
+      file_index.seek(0)
+      file_data.seek(0)
+      # The dictd file format is fairly iffy on the subject of special
+      # headwords: either dictd is buggy, or the manpage doesn't tell the whole
+      # story about the format.
+      # The upshot is that order of these entries in the index *matters*.
+      # Putting them at the beginning and in alphabetic order is afaict ok.
+      # Some other orders completely and quietly break the ability to look
+      # those headwords up.
+      # -- problem encountered with 1.10.2, at 2007-08-05.
+      file_data.write('\n')
+      wn_url = self.wn_url
+      conversion_datetime = datetime.datetime.now().strftime(self.datetime_fmt)
+      wn_license = self.wn_license
+      self.dict_entry_write(file_index, file_data, '00-database-info', '00-database-info\n%s\n' % (self.db_info_fmt % vars()))
+      self.dict_entry_write(file_index, file_data, '00-database-long', '00-database-long\n%s\n' % self.desc_long)
+      self.dict_entry_write(file_index, file_data, '00-database-short', '00-database-short\n%s\n' % self.desc_short)
+      self.dict_entry_write(file_index, file_data, '00-database-url', '00-database-url\n%s\n' % self.wn_url)
+
+     
+      words = self.word_data.keys()
+      words.sort()
+      for word in words:
+         for wi in self.word_data[word]:
+            word_cs = word
+            # Use case-sensitivity information of first entry of first synset that
+            # matches this word case-insensitively
+            for synset in wi.synsets:
+               for ss_word in synset.words:
+                  if (ss_word.lower() == word_cs.lower()):
+                     word_cs = ss_word
+                     break
+               else:
+                  continue
+               break
+            else:
+               continue
+            break
+           
+         outstr = ''
+         for wi in self.word_data[word]:
+            outstr += wi.dict_str() + '\n'
+         
+         outstr = '%s%s%s' % (word_cs, wi.linesep, outstr)
+         self.dict_entry_write(file_index, file_data, word_cs, outstr, wi.linesep)
+     
+      file_index.truncate()
+      file_data.truncate()
+
+
+if (__name__ == '__main__'):
+   import optparse
+   op = optparse.OptionParser(usage='usage: %prog [options] (<wn_index_file> <wn_data_file>)+')
+   op.add_option('-i', '--outindex', dest='oi', default='wn.index', help='filename of index file to write to')
+   op.add_option('-d', '--outdata', dest='od', default='wn.dict', help='filename of data file to write to')
+   op.add_option('--wn_url', dest='wn_url', default='ftp://ftp.cogsci.princeton.edu/pub/wordnet/2.0', help='URL for wordnet sources')
+   op.add_option('--db_desc_short', dest='desc_short', default='     WordNet (r) 2.1 (2005)', help='short dict DB description')
+   op.add_option('--db_desc_long', dest='desc_long', default='    WordNet (r): A Lexical Database for English from the\n     Cognitive Science Laboratory at Princeton University', help='long dict DB description')
+   
+   (options, args) = op.parse_args()
+   
+   wnd = WordnetDict(wn_url=options.wn_url, desc_short=options.desc_short, desc_long=options.desc_long)
+   
+   for i in range(0,len(args),2):
+      print 'Opening index file %r...' % args[i]
+      file_index = file(args[i])
+      print 'Opening data file %r...' % args[i+1]
+      file_data = file(args[i+1])
+      print 'Parsing index file and data file...'
+      wnd.wn_dict_add(file_index, file_data)
+
+   print 'All input files parsed. Writing output to index file %r and data file %r.' % (options.oi, options.od)
+   
+   wnd.dict_generate(file(options.oi, 'w'),file(options.od, 'w'))
+   print 'All done.' 

pkgs/top-level/all-packages.nix

···
     inherit stdenv lib dict;
   };
 
+  dictdWordnet = callPackage ../servers/dict/dictd-wordnet.nix {};
+
   dovecot = callPackage ../servers/mail/dovecot { };
 
   ejabberd = callPackage ../servers/xmpp/ejabberd { };