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diff --git a/scripts/gentable.py b/scripts/gentable.py
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+# -*- coding: utf-8 -*-
+# vim:set et sts=4 sw=4:
+#
+# libpinyin - Library to deal with pinyin.
+#
+# Copyright (C) 2011 Peng Wu <alexepico@gmail.com>
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program 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 this program; if not, write to the Free Software
+# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+import operator
+from pinyintable import *
+
+
+content_table = []
+pinyin_index = []
+bopomofo_index = []
+
+#pinyin table
+def filter_pinyin_list():
+    for (correct, wrong, bopomofo, flags, chewing) in gen_pinyin_list():
+        flags = '|'.join(flags)
+        chewing = "ChewingKey({0})".format(', '.join(chewing))
+        content_table.append((correct, bopomofo, chewing))
+        if "IS_PINYIN" in flags:
+            pinyin_index.append((wrong, flags, correct))
+        if "IS_CHEWING" in flags:
+            bopomofo_index.append((bopomofo, flags, bopomofo))
+
+
+def sort_all():
+    global content_table, pinyin_index, bopomofo_index
+    #remove duplicates
+    content_table = list(set(content_table))
+    #define sort function
+    sortfunc = operator.itemgetter(0)
+    #begin sort
+    content_table = sorted(content_table, key=sortfunc)
+    #prepend zero item
+    content_table.insert(0, ("", "", "ChewingKey()"))
+    #sort index
+    pinyin_index = sorted(pinyin_index, key=sortfunc)
+    bopomofo_index = sorted(bopomofo_index, key=sortfunc)
+
+
+def gen_context_table():
+    entries = []
+    for ((correct, bopomofo, chewing)) in content_table:
+        entry = '{{"{0}", "{1}", {2}}}'.format(correct, bopomofo, chewing)
+        entries.append(entry)
+    return ',\n'.join(entries)
+
+
+### main function ###
+if __name__ == "__main__":
+    filter_pinyin_list()
+    sort_all()
+    table = gen_context_table()
+    print(table)