/python/engine/PinYin/PYCreatePinYinDB.py

# vim: set noet ts=4:
#
# scim-python
#
# Copyright (c) 2007-2008 Huang Peng <shawn.p.huang@gmail.com>
#
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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 Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this program; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place, Suite 330,
# Boston, MA  02111-1307  USA
#
# $Id: $
#
import sys, os, re
import PYSQLiteDB
import bz2

def main ():
	srcdir = "."
	if len (sys.argv) == 2:
		srcdir = sys.argv[1]

	filename = "py.db"
	try:
		os.unlink (filename)
	except:
		pass
	
	print "Create DB"
	db = PYSQLiteDB.PYSQLiteDB (filename = filename)
	db.create_tables ()
	db.init_pinyin_table ()
	db.init_shengmu_table ()

	def phrase_pinyin_parser (f):
		for l in f:
			phrase, pinyin, freq = unicode (l, "utf-8").strip ().split ()
			pinyin = pinyin.replace (u"u:", u"v")
			yield (phrase, pinyin, int (freq))

	def phrase_pinyin_parser_pinyin (f):
		for l in f:
			phrase, pinyin, freq = unicode (l, "utf-8").strip ().split ()
			pinyin = pinyin.replace (u"u:", u"v")
			yield (phrase, pinyin, int (freq)*1300)

	print "Load pinyin_table.txt"
	filename = os.path.join (srcdir, "../../../data/pinyin_table.txt")
	db.add_phrases (phrase_pinyin_parser_pinyin (file (filename)))

	print "Load phrase_pinyin.txt.bz2"
	filename = os.path.join (srcdir, "phrase_pinyin.txt.bz2")
	bzf = bz2.BZ2File (filename, "r")
	db.add_phrases (phrase_pinyin_parser (bzf))
	
	print "Load phrase_pinyin_duoyin.txt"
	filename = os.path.join (srcdir, "phrase_pinyin_duoyin.txt")
	db.add_phrases (phrase_pinyin_parser (file (filename)))

	print "Optimizing database"
	db.optimize_database ()
	
if __name__ == "__main__":
	main ()