def apply_change(self, change):
"""Apply a change to the document."""
text = change["text"]
change_range = change.get("range")
text_bytes = text.encode(Document.encoding, "replace")
if not change_range:
# The whole file has changed
raise AssertionError
# if len(text_bytes) < thin.Files_Map.Get_Buffer_Length(self._fe):
# xxxx_replace
# else:
# xxxx_free
# xxxx_allocate
# return
start_line = change_range["start"]["line"]
start_col = change_range["start"]["character"]
end_line = change_range["end"]["line"]
end_col = change_range["end"]["character"]
status = files_map_editor.Replace_Text(
self._fe,
start_line + 1,
start_col,
end_line + 1,
end_col,
ctypes.c_char_p(text_bytes),
len(text_bytes),
)
if status:
return
# Failed to replace text.
# Increase size
self.gap_size *= 2
fileid = files_map.Get_File_Name(self._fe)
dirid = files_map.Get_Directory_Name(self._fe)
buf_len = files_map.Get_File_Length(
self._fe) + len(text_bytes) + self.gap_size
files_map.Discard_Source_File(self._fe)
new_sfe = files_map.Reserve_Source_File(dirid, fileid, buf_len)
files_map_editor.Copy_Source_File(new_sfe, self._fe)
files_map.Free_Source_File(self._fe)
self._fe = new_sfe
status = files_map_editor.Replace_Text(
self._fe,
start_line + 1,
start_col,
end_line + 1,
end_col,
ctypes.c_char_p(text_bytes),
len(text_bytes),
)
assert status
def load(source, dirname, filename):
# Write text to file buffer.
src_bytes = source.encode(Document.encoding, "replace")
src_len = len(src_bytes)
buf_len = src_len + Document.initial_gap_size
fileid = name_table.Get_Identifier(filename.encode('utf-8'))
if os.path.isabs(filename):
dirid = name_table.Null_Identifier
else:
dirid = name_table.Get_Identifier(dirname.encode('utf-8'))
sfe = files_map.Reserve_Source_File(dirid, fileid, buf_len)
files_map_editor.Fill_Text(sfe, ctypes.c_char_p(src_bytes), src_len)
return sfe