class WordManager:
WORDS_FILE = 'word_infos.json'
LEFT_PARENTHESES = '(（'
RIGHT_PARENTHESES = ')）'
PARENTHESES = LEFT_PARENTHESES + RIGHT_PARENTHESES
MIN_WORD_LEN = 2
MAX_WORD_LEN = 10
validated = False
# characters_and_words: (example) '（你好)我叫(保羅)'
def __init__(self, characters_and_words, cedict_path):
self.characters_and_words = characters_and_words
self.translator = None
self.translator = Translator(cedict_path)
def __del__(self):
if self.translator != None:
self.translator.__del__()
# throws if invalid parentheses configuration detected or word length
# is out of bounds
def assure_valid(self):
if self.validated:
return
par_cnt = 0
in_par = False
for c in self.characters_and_words:
if self.__is_left_parenthesis(c):
par_cnt = par_cnt + 1
word_len = 0
if in_par:
self.raise_unexpected_parenthesis_exception(par_cnt)
in_par = True
elif self.__is_right_parenthesis(c):
par_cnt = par_cnt + 1
if not in_par:
self.raise_unexpected_parenthesis_exception(par_cnt)
elif word_len < self.MIN_WORD_LEN:
raise GenException('Words must be at least ' + \
str(self.MIN_WORD_LEN) + \
' characters long')
elif word_len > self.MAX_WORD_LEN:
raise GenException('Words cannot be longer than ' + \
str(self.MAX_WORD_LEN) + \
' characters')
in_par = False
elif in_par:
word_len = word_len + 1
if in_par:
self.raise_unexpected_parenthesis_exception(par_cnt)
self.validated = True
def raise_unexpected_parenthesis_exception(self, par_cnt):
raise GenException('Unexpected parenthesis #' + str(par_cnt))
def get_words(self):
self.assure_valid()
words = list()
par_cnt = 0
for i in range(len(self.characters_and_words)):
c = self.characters_and_words[i]
# TODO: use enumerate
if self.__is_left_parenthesis(c):
begin_character_index = i - par_cnt
begin_word_index = i + 1
par_cnt = par_cnt + 1
if self.__is_right_parenthesis(c):
par_cnt = par_cnt + 1
end_character_index = i - par_cnt
end_word_index = i - 1
chinese_word = self.characters_and_words[
begin_word_index:end_word_index + 1]
try:
definition = self.translator.translate(chinese_word)
except GenException:
definition = list()
words.append(Word(begin_character_index, end_character_index, \
definition))
return words
def get_characters(self):
self.assure_valid()
characters = self.characters_and_words
for par in self.PARENTHESES:
characters = characters.replace(par, '')
return characters
def __is_left_parenthesis(self, character):
return character in self.LEFT_PARENTHESES
def __is_right_parenthesis(self, character):
return character in self.RIGHT_PARENTHESES
