def __regex__(self):
end = self.parser_config.end.pattern if self.parser_config.end else None
prec, regex = self.expr.__regex__()
regex = regex_iso(prec, regex, "*")
if self.parser_config.max_match == MAX_INT:
if self.parser_config.min_match == 0:
suffix = "*"
elif self.parser_config.min_match == 1:
suffix = "+"
else:
suffix = "{" + text(self.parser_config.min_match) + ",}"
elif self.parser_config.min_match == self.parser_config.max_match:
if self.parser_config.min_match == 1:
suffix = ""
else:
suffix = "{" + text(self.parser_config.min_match) + "}"
else:
suffix = ("{" + text(self.parser_config.min_match) + "," +
text(self.parser_config.max_match) + "}")
if end:
return "+", regex + suffix + end
else:
return "*", regex + suffix
def __regex__(self):
return (
"|",
"|".join(
regex_iso(*e.__regex__(), "|") for e in self.exprs
if not isinstance(e, Empty)),
)
def __regex__(self):
white = regex_range(self.white_chars)
if not self.ignore_list:
if not white:
return "*", ""
else:
return "*", white + "*"
ignored = "|".join(
regex_iso(*i.__regex__(), "|") for i in self.ignore_list)
return "+", f"(?:{white}*(?:{ignored}))*{white}*"
def __regex__(self):
return "+", "".join(regex_iso(*e.__regex__(), "+") for e in self.exprs)
