in aliyun-python-sdk-core/aliyunsdkcore/vendored/requests/packages/chardet/hebrewprober.py [0:0]
def feed(self, byte_str):
# Final letter analysis for logical-visual decision.
# Look for evidence that the received buffer is either logical Hebrew
# or visual Hebrew.
# The following cases are checked:
# 1) A word longer than 1 letter, ending with a final letter. This is
# an indication that the text is laid out "naturally" since the
# final letter really appears at the end. +1 for logical score.
# 2) A word longer than 1 letter, ending with a Non-Final letter. In
# normal Hebrew, words ending with Kaf, Mem, Nun, Pe or Tsadi,
# should not end with the Non-Final form of that letter. Exceptions
# to this rule are mentioned above in isNonFinal(). This is an
# indication that the text is laid out backwards. +1 for visual
# score
# 3) A word longer than 1 letter, starting with a final letter. Final
# letters should not appear at the beginning of a word. This is an
# indication that the text is laid out backwards. +1 for visual
# score.
#
# The visual score and logical score are accumulated throughout the
# text and are finally checked against each other in GetCharSetName().
# No checking for final letters in the middle of words is done since
# that case is not an indication for either Logical or Visual text.
#
# We automatically filter out all 7-bit characters (replace them with
# spaces) so the word boundary detection works properly. [MAP]
if self.state == ProbingState.NOT_ME:
# Both model probers say it's not them. No reason to continue.
return ProbingState.NOT_ME
byte_str = self.filter_high_byte_only(byte_str)
for cur in byte_str:
if cur == ' ':
# We stand on a space - a word just ended
if self._before_prev != ' ':
# next-to-last char was not a space so self._prev is not a
# 1 letter word
if self.is_final(self._prev):
# case (1) [-2:not space][-1:final letter][cur:space]
self._final_char_logical_score += 1
elif self.is_non_final(self._prev):
# case (2) [-2:not space][-1:Non-Final letter][
# cur:space]
self._final_char_visual_score += 1
else:
# Not standing on a space
if ((self._before_prev == ' ') and
(self.is_final(self._prev)) and (cur != ' ')):
# case (3) [-2:space][-1:final letter][cur:not space]
self._final_char_visual_score += 1
self._before_prev = self._prev
self._prev = cur
# Forever detecting, till the end or until both model probers return
# ProbingState.NOT_ME (handled above)
return ProbingState.DETECTING