def find_indic_matras_and_viramas(self):
"""Indic matras and viramas are always separate marks."""
for exemplar in list(self.clusters.keys()):
count = self.clusters[exemplar]
for trailer_index in range(len(exemplar.trailers)):
trailer = exemplar.trailers[trailer_index]
if (self.ucd.is_never_combine(trailer) or
Char.hasBinaryProperty(trailer, UProperty.DEFAULT_IGNORABLE_CODE_POINT)):
self.split_exemplar(exemplar, trailer_index, count)
def find_indic_matras_and_viramas(self):
"""Indic matras and viramas are always separate marks."""
for exemplar in list(self.clusters.keys()):
count = self.clusters[exemplar]
for trailer_index in range(len(exemplar.trailers)):
trailer = exemplar.trailers[trailer_index]
if (self.ucd.is_never_combine(trailer) or
Char.hasBinaryProperty(trailer, UProperty.DEFAULT_IGNORABLE_CODE_POINT)):
self.split_exemplar(exemplar, trailer_index, count)
def parcel_ignorable(self):
"""Move Default_Ignorable_Code_Point characters to auxiliary."""
for exemplar in list(self.clusters.keys()):
if exemplar.base == '':
return
if Char.hasBinaryProperty(exemplar.base, UProperty.DEFAULT_IGNORABLE_CODE_POINT):
# The base is a Default_Ignorable_Code_Point
# which needs to go in the auxiliary list.
self._auxiliary.add(exemplar.base)
del self.clusters[exemplar]
def need_hex_escape(self, char, is_isolated):
"""Determine if a characters needs to be escaped with hex digits."""
if self.ismark(char) and is_isolated:
return True
if Char.hasBinaryProperty(char, UProperty.DEFAULT_IGNORABLE_CODE_POINT):
return True
if self.isformat(char):
return True
if self.is_space_separator(char):
return True
return False
def parcel_ignorable(self):
"""Move Default_Ignorable_Code_Point characters to auxiliary."""
for exemplar in list(self.clusters.keys()):
if exemplar.base == '':
return
if Char.hasBinaryProperty(exemplar.base,
UProperty.DEFAULT_IGNORABLE_CODE_POINT):
# The base is a Default_Ignorable_Code_Point
# which needs to go in the auxiliary list.
self._auxiliary.add(exemplar.base)
del self.clusters[exemplar]
def ignore_findit(self):
from icu import Char, UProperty
maxchar = 0x10ffff
maxchar = 0xffff
for usv in range(maxchar):
char = chr(usv)
# if ((not self.ucd.is_specific_script(char)) and
# (not self.ucd.is_exemplar_wordbreak(char)) and
# (not Char.isUAlphabetic(char))):
if self.ucd.isformat(char) and not Char.hasBinaryProperty(char, UProperty.DEFAULT_IGNORABLE_CODE_POINT):
print('%04X' % usv)
self.assertTrue(False)
def need_hex_escape(self, char, is_isolated):
"""Determine if a characters needs to be escaped with hex digits."""
if self.ismark(char) and is_isolated:
return True
if Char.hasBinaryProperty(char, UProperty.DEFAULT_IGNORABLE_CODE_POINT):
return True
if self.isformat(char):
return True
if self.is_space_separator(char):
return True
if self.is_pua(char):
return True
return False
def ignore_findit(self):
from icu import Char, UProperty
maxchar = 0x10ffff
maxchar = 0xffff
for usv in xrange(maxchar):
char = unichr(usv)
# if ((not self.ucd.is_specific_script(char)) and
# (not self.ucd.is_exemplar_wordbreak(char)) and
# (not Char.isUAlphabetic(char))):
if self.ucd.isformat(char) and not Char.hasBinaryProperty(char, UProperty.DEFAULT_IGNORABLE_CODE_POINT):
print '%04X' % usv
self.assertTrue(False)
def process(self, text):
"""Analyze a string."""
i = 0
text = self.ucd.normalize('NFD', text)
# Record script of each character.
for char in text:
script = Script.getScript(char)
script_code = Script.getScriptCode(script)
self.scripts[script_code] += 1
self.codes_for_scripts[script_code] = script
# Record clusters
while i < len(text):
# Look for multigraphs (from length of max_multigraph_length down to 1) character(s)
# of multigraphs already specified in a LDML file.
# Longest possible matches are looked at first.
for multigraph_length in range(self.max_multigraph_length, 0, -1):
multigraph = text[i:i + multigraph_length]
if (multigraph in self._main or
multigraph in self._auxiliary or
multigraph in self._index or
multigraph in self._punctuation):
exemplar = Exemplar(multigraph)
self.clusters[exemplar] += 1
i += multigraph_length
break
# No multigraphs were found at this position,
# so continue processing a single character
# if we have not gone beyond the end of the text.
if not i < len(text):
break
char = text[i]
# Test for punctuation.
if self.ucd.ispunct(char):
exemplar = Exemplar(char)
self.clusters[exemplar] += 1
i += 1
continue
# Find grapheme clusters.
# Ensure exemplar base has needed properties.
if not self.allowable(char):
i += 1
continue
# The current character is a base character.
base = char
# Then find the end of the cluster
# (which may consist of only base characters).
length = base_length = 1
while i + length < len(text):
trailer = text[i + length]
if Char.hasBinaryProperty(trailer, UProperty.DEFAULT_IGNORABLE_CODE_POINT):
# A Default_Ignorable_Code_Point was found, so the cluster continues.
length += 1
continue
if self.ucd.ismark(trailer):
# A Mark was found, so the cluster continues.
length += 1
# Marks such as nuktas are considered part of the base.
if self.ucd.is_always_combine(trailer):
# A Mark such as a nukta was found, so the base continues,
# as well as the cluster.
base_length += 1
base = text[i:i + base_length]
continue
else:
# No more marks, so the end of the cluster has been reached.
break
# Extract cluster
# If no nuktas have been found,
# then the base will be the single character already called base (or char).
# If no non-nukta marks have been found,
# then the trailers variable will be an empty string.
trailers = text[i + base_length:i + length]
exemplar = Exemplar(base, trailers)
self.clusters[exemplar] += 1
i += length
