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Diffstat (limited to 'Userland/Libraries/LibSQL/Token.cpp')
-rw-r--r-- | Userland/Libraries/LibSQL/Token.cpp | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/Userland/Libraries/LibSQL/Token.cpp b/Userland/Libraries/LibSQL/Token.cpp new file mode 100644 index 0000000000..672855d0c2 --- /dev/null +++ b/Userland/Libraries/LibSQL/Token.cpp @@ -0,0 +1,73 @@ +/* + * Copyright (c) 2021, Tim Flynn <trflynn89@pm.me> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, this + * list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "Token.h" +#include <AK/Assertions.h> +#include <AK/String.h> +#include <stdlib.h> + +namespace SQL { + +StringView Token::name(TokenType type) +{ + switch (type) { +#define __ENUMERATE_SQL_TOKEN(value, type, category) \ + case TokenType::type: \ + return #type; + ENUMERATE_SQL_TOKENS +#undef __ENUMERATE_SQL_TOKEN + default: + VERIFY_NOT_REACHED(); + } +} + +TokenCategory Token::category(TokenType type) +{ + switch (type) { +#define __ENUMERATE_SQL_TOKEN(value, type, category) \ + case TokenType::type: \ + return TokenCategory::category; + ENUMERATE_SQL_TOKENS +#undef __ENUMERATE_SQL_TOKEN + default: + VERIFY_NOT_REACHED(); + } +} + +double Token::double_value() const +{ + VERIFY(type() == TokenType::NumericLiteral); + String value(m_value); + + if (value[0] == '0' && value.length() >= 2) { + if (value[1] == 'x' || value[1] == 'X') + return static_cast<double>(strtoul(value.characters() + 2, nullptr, 16)); + } + + return strtod(value.characters(), nullptr); +} + +} |