diff options
Diffstat (limited to 'libsolidity/parsing/Scanner.cpp')
| -rw-r--r-- | libsolidity/parsing/Scanner.cpp | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/libsolidity/parsing/Scanner.cpp b/libsolidity/parsing/Scanner.cpp index d730210a..603f3e42 100644 --- a/libsolidity/parsing/Scanner.cpp +++ b/libsolidity/parsing/Scanner.cpp @@ -591,7 +591,23 @@ void Scanner::scanToken() break; default: if (isIdentifierStart(m_char)) + { tie(token, m, n) = scanIdentifierOrKeyword(); + + // Special case for hexademical literals + if (token == Token::Hex) + { + // reset + m = 0; + n = 0; + + // Special quoted hex string must follow + if (m_char == '"' || m_char == '\'') + token = scanHexString(); + else + token = Token::Illegal; + } + } else if (isDecimalDigit(m_char)) token = scanNumber(); else if (skipWhitespace()) @@ -684,6 +700,25 @@ Token::Value Scanner::scanString() return Token::StringLiteral; } +Token::Value Scanner::scanHexString() +{ + char const quote = m_char; + advance(); // consume quote + LiteralScope literal(this, LITERAL_TYPE_STRING); + while (m_char != quote && !isSourcePastEndOfInput() && !isLineTerminator(m_char)) + { + char c = m_char; + if (!scanHexByte(c)) + return Token::Illegal; + addLiteralChar(c); + } + if (m_char != quote) + return Token::Illegal; + literal.complete(); + advance(); // consume quote + return Token::StringLiteral; +} + void Scanner::scanDecimalDigits() { while (isDecimalDigit(m_char)) |