def EvalCharLiteralForRegex(tok):
# type: (Token) -> Optional[class_literal_term_t]
"""For regex char classes.
Similar logic as below.
"""
id_ = tok.id
value = tok.val
if id_ == Id.Char_OneChar:
c = value[1]
s = consts.LookupCharC(c)
return class_literal_term.ByteSet(s, tok.span_id)
elif id_ == Id.Char_Hex:
s = value[2:]
i = int(s, 16)
return class_literal_term.ByteSet(chr(i), tok.span_id)
elif id_ in (Id.Char_Unicode4, Id.Char_Unicode8):
s = value[2:]
i = int(s, 16)
return class_literal_term.CodePoint(i, tok.span_id)
elif id_ == Id.Expr_Name: # [b B] is NOT mutated
return None
else:
raise AssertionError(Id_str(id_))
def EvalCharLiteralForRegex(tok):
"""For regex char classes.
Similar logic as below.
"""
id_ = tok.id
value = tok.val
if id_ == Id.Char_OneChar:
c = value[1]
s = _ONE_CHAR[c]
return class_literal_term.ByteSet(s, tok.span_id)
elif id_ == Id.Char_Hex:
s = value[2:]
i = int(s, 16)
return class_literal_term.ByteSet(chr(i), tok.span_id)
elif id_ in (Id.Char_Unicode4, Id.Char_Unicode8):
s = value[2:]
i = int(s, 16)
return class_literal_term.CodePoint(i, tok.span_id)
else:
raise AssertionError
