mirror of
https://github.com/pocoproject/poco.git
synced 2024-12-25 17:10:59 +01:00
159 lines
6.6 KiB
C++
159 lines
6.6 KiB
C++
//
|
|
// NumberParser.h
|
|
//
|
|
// $Id: //poco/1.4/Foundation/include/Poco/NumberParser.h#1 $
|
|
//
|
|
// Library: Foundation
|
|
// Package: Core
|
|
// Module: NumberParser
|
|
//
|
|
// Definition of the NumberParser class.
|
|
//
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// SPDX-License-Identifier: BSL-1.0
|
|
//
|
|
|
|
|
|
#ifndef Foundation_NumberParser_INCLUDED
|
|
#define Foundation_NumberParser_INCLUDED
|
|
|
|
|
|
#include "Poco/Foundation.h"
|
|
#include <string>
|
|
#undef min
|
|
#undef max
|
|
#include <limits>
|
|
|
|
|
|
namespace Poco {
|
|
|
|
|
|
class Foundation_API NumberParser
|
|
/// The NumberParser class provides static methods
|
|
/// for parsing numbers out of strings.
|
|
///
|
|
/// Note that leading or trailing whitespace is not allowed
|
|
/// in the string. Poco::trim() or Poco::trimInPlace()
|
|
/// can be used to remove leading or trailing whitespace.
|
|
{
|
|
public:
|
|
static const unsigned short NUM_BASE_OCT = 010;
|
|
static const unsigned short NUM_BASE_DEC = 10;
|
|
static const unsigned short NUM_BASE_HEX = 0x10;
|
|
|
|
static int parse(const std::string& s, char thousandSeparator = ',');
|
|
/// Parses an integer value in decimal notation from the given string.
|
|
/// Throws a SyntaxException if the string does not hold a number in decimal notation.
|
|
|
|
static bool tryParse(const std::string& s, int& value, char thousandSeparator = ',');
|
|
/// Parses an integer value in decimal notation from the given string.
|
|
/// Returns true if a valid integer has been found, false otherwise.
|
|
/// If parsing was not successful, value is undefined.
|
|
|
|
static unsigned parseUnsigned(const std::string& s, char thousandSeparator = ',');
|
|
/// Parses an unsigned integer value in decimal notation from the given string.
|
|
/// Throws a SyntaxException if the string does not hold a number in decimal notation.
|
|
|
|
static bool tryParseUnsigned(const std::string& s, unsigned& value, char thousandSeparator = ',');
|
|
/// Parses an unsigned integer value in decimal notation from the given string.
|
|
/// Returns true if a valid integer has been found, false otherwise.
|
|
/// If parsing was not successful, value is undefined.
|
|
|
|
static unsigned parseHex(const std::string& s);
|
|
/// Parses an integer value in hexadecimal notation from the given string.
|
|
/// Throws a SyntaxException if the string does not hold a number in
|
|
/// hexadecimal notation.
|
|
|
|
static bool tryParseHex(const std::string& s, unsigned& value);
|
|
/// Parses an unsigned integer value in hexadecimal notation from the given string.
|
|
/// Returns true if a valid integer has been found, false otherwise.
|
|
/// If parsing was not successful, value is undefined.
|
|
|
|
static unsigned parseOct(const std::string& s);
|
|
/// Parses an integer value in octal notation from the given string.
|
|
/// Throws a SyntaxException if the string does not hold a number in
|
|
/// hexadecimal notation.
|
|
|
|
static bool tryParseOct(const std::string& s, unsigned& value);
|
|
/// Parses an unsigned integer value in octal notation from the given string.
|
|
/// Returns true if a valid integer has been found, false otherwise.
|
|
/// If parsing was not successful, value is undefined.
|
|
|
|
#if defined(POCO_HAVE_INT64)
|
|
|
|
static Int64 parse64(const std::string& s, char thousandSeparator = ',');
|
|
/// Parses a 64-bit integer value in decimal notation from the given string.
|
|
/// Throws a SyntaxException if the string does not hold a number in decimal notation.
|
|
|
|
static bool tryParse64(const std::string& s, Int64& value, char thousandSeparator = ',');
|
|
/// Parses a 64-bit integer value in decimal notation from the given string.
|
|
/// Returns true if a valid integer has been found, false otherwise.
|
|
/// If parsing was not successful, value is undefined.
|
|
|
|
static UInt64 parseUnsigned64(const std::string& s, char thousandSeparator = ',');
|
|
/// Parses an unsigned 64-bit integer value in decimal notation from the given string.
|
|
/// Throws a SyntaxException if the string does not hold a number in decimal notation.
|
|
|
|
static bool tryParseUnsigned64(const std::string& s, UInt64& value, char thousandSeparator = ',');
|
|
/// Parses an unsigned 64-bit integer value in decimal notation from the given string.
|
|
/// Returns true if a valid integer has been found, false otherwise.
|
|
/// If parsing was not successful, value is undefined.
|
|
|
|
static UInt64 parseHex64(const std::string& s);
|
|
/// Parses a 64 bit-integer value in hexadecimal notation from the given string.
|
|
/// Throws a SyntaxException if the string does not hold a number in hexadecimal notation.
|
|
|
|
static bool tryParseHex64(const std::string& s, UInt64& value);
|
|
/// Parses an unsigned 64-bit integer value in hexadecimal notation from the given string.
|
|
/// Returns true if a valid integer has been found, false otherwise.
|
|
/// If parsing was not successful, value is undefined.
|
|
|
|
static UInt64 parseOct64(const std::string& s);
|
|
/// Parses a 64 bit-integer value in octal notation from the given string.
|
|
/// Throws a SyntaxException if the string does not hold a number in hexadecimal notation.
|
|
|
|
static bool tryParseOct64(const std::string& s, UInt64& value);
|
|
/// Parses an unsigned 64-bit integer value in octal notation from the given string.
|
|
/// Returns true if a valid integer has been found, false otherwise.
|
|
/// If parsing was not successful, value is undefined.
|
|
|
|
#endif // defined(POCO_HAVE_INT64)
|
|
|
|
static double parseFloat(const std::string& s, char decimalSeparator = '.', char thousandSeparator = ',');
|
|
/// Parses a double value in decimal floating point notation
|
|
/// from the given string.
|
|
/// Throws a SyntaxException if the string does not hold a floating-point
|
|
/// number in decimal notation.
|
|
|
|
static bool tryParseFloat(const std::string& s, double& value, char decimalSeparator = '.', char thousandSeparator = ',');
|
|
/// Parses a double value in decimal floating point notation
|
|
/// from the given string.
|
|
/// Returns true if a valid floating point number has been found,
|
|
/// false otherwise.
|
|
/// If parsing was not successful, value is undefined.
|
|
|
|
static bool parseBool(const std::string& s);
|
|
/// Parses a bool value in decimal or string notation
|
|
/// from the given string.
|
|
/// Valid forms are: "0", "1", "true", "on", false", "yes", "no", "off".
|
|
/// String forms are NOT case sensitive.
|
|
/// Throws a SyntaxException if the string does not hold a valid bool number
|
|
|
|
static bool tryParseBool(const std::string& s, bool& value);
|
|
/// Parses a bool value in decimal or string notation
|
|
/// from the given string.
|
|
/// Valid forms are: "0", "1", "true", "on", false", "yes", "no", "off".
|
|
/// String forms are NOT case sensitive.
|
|
/// Returns true if a valid bool number has been found,
|
|
/// false otherwise.
|
|
/// If parsing was not successful, value is undefined.
|
|
};
|
|
|
|
|
|
} // namespace Poco
|
|
|
|
|
|
#endif // Foundation_NumberParser_INCLUDED
|