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125 lines
5.1 KiB
C++
125 lines
5.1 KiB
C++
//
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// NumberParser.h
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//
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// $Id: //poco/svn/Foundation/include/Poco/NumberParser.h#2 $
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//
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// Library: Foundation
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// Package: Core
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// Module: NumberParser
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//
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// Definition of the NumberParser class.
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//
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// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
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// and Contributors.
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//
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// Permission is hereby granted, free of charge, to any person or organization
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// obtaining a copy of the software and accompanying documentation covered by
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// this license (the "Software") to use, reproduce, display, distribute,
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// execute, and transmit the Software, and to prepare derivative works of the
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// Software, and to permit third-parties to whom the Software is furnished to
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// do so, all subject to the following:
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//
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// The copyright notices in the Software and this entire statement, including
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// the above license grant, this restriction and the following disclaimer,
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// must be included in all copies of the Software, in whole or in part, and
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// all derivative works of the Software, unless such copies or derivative
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// works are solely in the form of machine-executable object code generated by
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// a source language processor.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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//
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#ifndef Foundation_NumberParser_INCLUDED
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#define Foundation_NumberParser_INCLUDED
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#include "Poco/Foundation.h"
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namespace Poco {
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class Foundation_API NumberParser
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/// The NumberParser class provides static methods
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/// for parsing numbers out of strings.
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{
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public:
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static int parse(const std::string& s);
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/// Parses an integer value in decimal notation from the given string.
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/// Throws a SyntaxException if the string does not hold a number in decimal notation.
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static bool tryParse(const std::string& s, int& value);
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/// Parses an integer value in decimal notation from the given string.
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/// Returns true if a valid integer has been found, false otherwise.
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static unsigned parseUnsigned(const std::string& s);
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/// Parses an unsigned integer value in decimal notation from the given string.
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/// Throws a SyntaxException if the string does not hold a number in decimal notation.
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static bool tryParseUnsigned(const std::string& s, unsigned& value);
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/// Parses an unsigned integer value in decimal notation from the given string.
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/// Returns true if a valid integer has been found, false otherwise.
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static unsigned parseHex(const std::string& s);
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/// Parses an integer value in hexadecimal notation from the given string.
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/// Throws a SyntaxException if the string does not hold a number in
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/// hexadecimal notation.
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static bool tryParseHex(const std::string& s, unsigned& value);
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/// Parses an unsigned integer value in hexadecimal notation from the given string.
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/// Returns true if a valid integer has been found, false otherwise.
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#if defined(POCO_HAVE_INT64)
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static Int64 parse64(const std::string& s);
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/// Parses a 64-bit integer value in decimal notation from the given string.
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/// Throws a SyntaxException if the string does not hold a number in decimal notation.
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static bool tryParse64(const std::string& s, Int64& value);
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/// Parses a 64-bit integer value in decimal notation from the given string.
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/// Returns true if a valid integer has been found, false otherwise.
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static UInt64 parseUnsigned64(const std::string& s);
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/// Parses an unsigned 64-bit integer value in decimal notation from the given string.
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/// Throws a SyntaxException if the string does not hold a number in decimal notation.
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static bool tryParseUnsigned64(const std::string& s, UInt64& value);
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/// Parses an unsigned 64-bit integer value in decimal notation from the given string.
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/// Returns true if a valid integer has been found, false otherwise.
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static UInt64 parseHex64(const std::string& s);
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/// Parses a 64 bit-integer value in hexadecimal notation from the given string.
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/// Throws a SyntaxException if the string does not hold a number in hexadecimal notation.
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static bool tryParseHex64(const std::string& s, UInt64& value);
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/// Parses an unsigned 64-bit integer value in hexadecimal notation from the given string.
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/// Returns true if a valid integer has been found, false otherwise.
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#endif // defined(POCO_HAVE_INT64)
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static double parseFloat(const std::string& s);
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/// Parses a double value in decimal floating point notation
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/// from the given string.
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/// Throws a SyntaxException if the string does not hold a floating-point
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/// number in decimal notation.
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static bool tryParseFloat(const std::string& s, double& value);
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/// Parses a double value in decimal floating point notation
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/// from the given string.
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/// Returns true if a valid floating point number has been found,
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/// false otherwise.
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};
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} // namespace Poco
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#endif // Foundation_NumberParser_INCLUDED
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