def _NameInClass(self, negated_tok, tok):
# type: (Token, Token) -> class_literal_term_t
"""
Like the above, but 'dot' doesn't mean anything. And `d` is a literal 'd',
not `digit`.
"""
if negated_tok: # For error messages
negated_speck = speck(negated_tok.id, negated_tok.span_id)
else:
negated_speck = None
val = tok.val
# A bare, unquoted character literal. In the grammar, this is expressed as
# range_char without an ending.
# d is NOT 'digit', it's a literal 'd'!
if len(val) == 1:
# Expr_Name matches VAR_NAME_RE, which starts with [a-zA-Z_]
assert tok.id in (Id.Expr_Name, Id.Expr_DecInt)
if negated_tok: # [~d] is not allowed, only [~digit]
p_die("Can't negate this symbol", token=tok)
return class_literal_term.CharLiteral(tok)
# digit, word, but not d, w, etc.
if val in POSIX_CLASSES:
return posix_class(negated_speck, val)
perl = PERL_CLASSES.get(val)
if perl is not None:
return perl_class(negated_speck, perl)
p_die("%r isn't a character class", val, token=tok)
def _NameInRegex(self, negated_tok, tok):
# type: (Token, Token) -> re_t
if negated_tok: # For error messages
negated_speck = speck(negated_tok.id, negated_tok.span_id)
else:
negated_speck = None
val = tok.val
if val == 'dot':
if negated_tok:
p_die("Can't negate this symbol", token=tok)
return tok
if val in POSIX_CLASSES:
return posix_class(negated_speck, val)
perl = PERL_CLASSES.get(val)
if perl is not None:
return perl_class(negated_speck, perl)
if val[0].isupper(): # e.g. HexDigit
return re.Splice(tok)
p_die("%r isn't a character class", val, token=tok)
def _NameInClass(self, negated_tok, tok):
# type: (token, token) -> class_literal_term_t
"""
Like the above, but 'dot' doesn't mean anything.
"""
if negated_tok: # For error messages
negated_speck = speck(negated_tok.id, negated_tok.span_id)
else:
negated_speck = None
val = tok.val
if val in self.POSIX_CLASSES:
return posix_class(negated_speck, val)
perl = self.PERL_CLASSES.get(val)
if perl:
return perl_class(negated_speck, perl)
p_die("%r isn't a character class", val, token=tok)
def _NameInRegex(self, negated_tok, tok):
# type: (token, token) -> re_t
if negated_tok: # For error messages
negated_speck = speck(negated_tok.id, negated_tok.span_id)
else:
negated_speck = None
val = tok.val
if val == 'dot':
if negated_tok:
p_die("Can't negate this symbol", token=tok)
return tok
if val in self.POSIX_CLASSES:
return posix_class(negated_speck, val)
perl = self.PERL_CLASSES.get(val)
if perl:
return perl_class(negated_speck, perl)
p_die("%r isn't a character class", val, token=tok)
