def has_valid_vowel_non_final(sound_tuple):
# If the sound_tuple is not complete, we only care whether its vowel
# position can be transformed into a legit vowel.
stripped_vowel = mark.strip(sound_tuple.vowel)
if sound_tuple.last_consonant != '':
return stripped_vowel in STRIPPED_VOWELS - STRIPPED_TERMINAL_VOWELS
else:
return stripped_vowel in STRIPPED_VOWELS
def has_valid_vowel_non_final(sound_tuple):
# If the sound_tuple is not complete, we only care whether its vowel
# position can be transformed into a legit vowel.
stripped_vowel = mark.strip(sound_tuple.vowel)
if sound_tuple.last_consonant != '':
return stripped_vowel in STRIPPED_VOWELS - STRIPPED_TERMINAL_VOWELS
else:
return stripped_vowel in STRIPPED_VOWELS
def _transform(comps, trans):
"""
Transform the given string with transform type trans
"""
logging.debug("== In _transform(%s, %s) ==", comps, trans)
components = list(comps)
action, parameter = _get_action(trans)
if action == _Action.ADD_MARK and \
components[2] == "" and \
mark.strip(components[1]).lower() in ['oe', 'oa'] and trans == "o^":
action, parameter = _Action.ADD_CHAR, trans[0]
if action == _Action.ADD_ACCENT:
logging.debug("add_accent(%s, %s)", components, parameter)
components = accent.add_accent(components, parameter)
elif action == _Action.ADD_MARK and mark.is_valid_mark(components, trans):
logging.debug("add_mark(%s, %s)", components, parameter)
components = mark.add_mark(components, parameter)
# Handle uơ in "huơ", "thuở", "quở"
# If the current word has no last consonant and the first consonant
# is one of "h", "th" and the vowel is "ươ" then change the vowel into
# "uơ", keeping case and accent. If an alphabet character is then added
# into the word then change back to "ươ".
#
# NOTE: In the dictionary, these are the only words having this strange
# vowel so we don't need to worry about other cases.
if accent.remove_accent_string(components[1]).lower() == "ươ" and \
not components[2] and components[0].lower() in ["", "h", "th", "kh"]:
# Backup accents
ac = accent.get_accent_string(components[1])
components[1] = ("u", "U")[components[1][0].isupper()] + components[1][1]
components = accent.add_accent(components, ac)
elif action == _Action.ADD_CHAR:
if trans[0] == "<":
if not components[2]:
# Only allow ư, ơ or ươ sitting alone in the middle part
# and ['g', 'i', '']. If we want to type giowf = 'giờ', separate()
# will create ['g', 'i', '']. Therefore we have to allow
# components[1] == 'i'.
if (components[0].lower(), components[1].lower()) == ('g', 'i'):
components[0] += components[1]
components[1] = ''
if not components[1] or \
(components[1].lower(), trans[1].lower()) == ('ư', 'ơ'):
components[1] += trans[1]
else:
components = utils.append_comps(components, parameter)
if parameter.isalpha() and \
accent.remove_accent_string(components[1]).lower().startswith("uơ"):
ac = accent.get_accent_string(components[1])
components[1] = ('ư', 'Ư')[components[1][0].isupper()] + \
('ơ', 'Ơ')[components[1][1].isupper()] + components[1][2:]
components = accent.add_accent(components, ac)
elif action == _Action.UNDO:
components = _reverse(components, trans[1:])
if action == _Action.ADD_MARK or (action == _Action.ADD_CHAR and parameter.isalpha()):
# If there is any accent, remove and reapply it
# because it is likely to be misplaced in previous transformations
ac = accent.get_accent_string(components[1])
if ac != accent.Accent.NONE:
components = accent.add_accent(components, Accent.NONE)
components = accent.add_accent(components, ac)
logging.debug("After transform: %s", components)
return components
def _transform(comps, trans):
"""
Transform the given string with transform type trans
"""
logging.debug("== In _transform(%s, %s) ==", comps, trans)
components = list(comps)
action, parameter = _get_action(trans)
if action == _Action.ADD_MARK and \
components[2] == "" and \
mark.strip(components[1]).lower() in ['oe', 'oa'] and trans == "o^":
action, parameter = _Action.ADD_CHAR, trans[0]
if action == _Action.ADD_ACCENT:
logging.debug("add_accent(%s, %s)", components, parameter)
components = accent.add_accent(components, parameter)
elif action == _Action.ADD_MARK and mark.is_valid_mark(components, trans):
logging.debug("add_mark(%s, %s)", components, parameter)
components = mark.add_mark(components, parameter)
# Handle uơ in "huơ", "thuở", "quở"
# If the current word has no last consonant and the first consonant
# is one of "h", "th" and the vowel is "ươ" then change the vowel into
# "uơ", keeping case and accent. If an alphabet character is then added
# into the word then change back to "ươ".
#
# NOTE: In the dictionary, these are the only words having this strange
# vowel so we don't need to worry about other cases.
if accent.remove_accent_string(components[1]).lower() == "ươ" and \
not components[2] and components[0].lower() in ["", "h", "th", "kh"]:
# Backup accents
ac = accent.get_accent_string(components[1])
components[1] = (
"u", "U")[components[1][0].isupper()] + components[1][1]
components = accent.add_accent(components, ac)
elif action == _Action.ADD_CHAR:
if trans[0] == "<":
if not components[2]:
# Only allow ư, ơ or ươ sitting alone in the middle part
# and ['g', 'i', '']. If we want to type giowf = 'giờ', separate()
# will create ['g', 'i', '']. Therefore we have to allow
# components[1] == 'i'.
if (components[0].lower(), components[1].lower()) == ('g',
'i'):
components[0] += components[1]
components[1] = ''
if not components[1] or \
(components[1].lower(), trans[1].lower()) == ('ư', 'ơ'):
components[1] += trans[1]
else:
components = utils.append_comps(components, parameter)
if parameter.isalpha() and \
accent.remove_accent_string(components[1]).lower().startswith("uơ"):
ac = accent.get_accent_string(components[1])
components[1] = ('ư', 'Ư')[components[1][0].isupper()] + \
('ơ', 'Ơ')[components[1][1].isupper()] + components[1][2:]
components = accent.add_accent(components, ac)
elif action == _Action.UNDO:
components = _reverse(components, trans[1:])
if action == _Action.ADD_MARK or (action == _Action.ADD_CHAR
and parameter.isalpha()):
# If there is any accent, remove and reapply it
# because it is likely to be misplaced in previous transformations
ac = accent.get_accent_string(components[1])
if ac != accent.Accent.NONE:
components = accent.add_accent(components, Accent.NONE)
components = accent.add_accent(components, ac)
logging.debug("After transform: %s", components)
return components