def _get_pre_context_epilog_definition(dial_db):
backup_position = Lng.REGISTER_NAME(E_R.BackupStreamPositionOfLexemeStartP)
txt = [
Lng.LABEL(DoorID.global_end_of_pre_context_check(dial_db)),
#-------------------
Lng.IF(backup_position, "!=", "((QUEX_TYPE_STREAM_POSITION)-1)"),
# "QUEX_NAME(Buffer_print_content)(&me->buffer);\n",
# "std::cout << std::endl;\n",
Lng.IF("false", "==", Lng.BUFFER_SEEK(backup_position)),
Lng.RAISE_ERROR_FLAG("E_Error_File_SeekFailed"),
Lng.RETURN,
Lng.END_IF,
Lng.LEXEME_START_SET(PositionStorage=None), # use '_read_p'
# "std::cout << \"lexst \" << me->buffer._lexeme_start_p[0] << std::endl;",
# "std::cout << \"readp \" << me->buffer._read_p[0] << std::endl;",
# "QUEX_NAME(Buffer_print_content)(&me->buffer);\n",
# "std::cout << std::endl;\n",
Lng.ASSIGN(backup_position, "((QUEX_TYPE_STREAM_POSITION)-1)"),
Lng.ELSE_FOLLOWS,
#-----------------------
# -- set the input stream back to the real current position.
# during backward lexing the analyzer went backwards, so it needs to be reset.
Lng.INPUT_P_TO_LEXEME_START(),
Lng.END_IF,
]
return [ "%s\n" % line for line in txt ]
def unicode_to_output(self, CodeUnitN):
txt = [
Lng.ASSIGN(
"unicode",
"(uint32_t)(%s)" % Lng.OP("(int32_t)input", "+", "offset"))
]
txt.extend(self.get_output_formatter(CodeUnitN))
txt.append(Lng.PURE_RETURN)
return [" %s" % line for line in txt]
def get_offset_code(self, Info):
"""RETURNS: Code to implement code conversion to UNICODE by adding or
subtracting an offset.
"""
offset = Info.codec_interval_begin_unicode - Info.codec_interval_begin
return "%s" % Lng.ASSIGN("offset", "(int32_t)(%s)" % offset)