topical media & game development
lib-of-vs-libs-Poco-include-Poco-Util-PropertyFileConfiguration.h / h
//
// PropertyFileConfiguration.h
//
//
//
// Library: Util
// Package: Configuration
// Module: PropertyFileConfiguration
//
// Definition of the PropertyFileConfiguration class.
//
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
// and Contributors.
//
// Permission is hereby granted, free of charge, to any person or organization
// obtaining a copy of the software and accompanying documentation covered by
// this license (the "Software") to use, reproduce, display, distribute,
// execute, and transmit the Software, and to prepare derivative works of the
// Software, and to permit third-parties to whom the Software is furnished to
// do so, all subject to the following:
//
// The copyright notices in the Software and this entire statement, including
// the above license grant, this restriction and the following disclaimer,
// must be included in all copies of the Software, in whole or in part, and
// all derivative works of the Software, unless such copies or derivative
// works are solely in the form of machine-executable object code generated by
// a source language processor.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
//
ifndef Util_PropertyFileConfiguration_INCLUDED
define Util_PropertyFileConfiguration_INCLUDED
include "Poco/Util/Util.h"
include "Poco/Util/MapConfiguration.h"
include <istream>
include <ostream>
namespace Poco {
namespace Util {
class Util_API PropertyFileConfiguration: public MapConfiguration
This implementation of a
Configuration reads properties
from a Java-style properties file.
The file syntax is implemented as follows.
- a line starting with a hash '#' or exclamation mark '!' is treated as a comment and ignored
- every other line denotes a property assignment in the form
<key> =
<value> or
<key> :
<value>
Keys and values may contain special characters represented by the following escape sequences:
- \t: tab (0x09)
- \n: line feed (0x0a)
- \r: carriage return (0x0d)
- \f: form feed (0x0c)
For every other sequence that starts with a backslash, the backslash is removed.
Therefore, the sequence \a would just yield an 'a'.
A value can spread across multiple lines if the last character in a line (the character
immediately before the carriage return or line feed character) is a single backslash.
Property names are case sensitive. Leading and trailing whitespace is
removed from both keys and values. A property name can neither contain
a colon ':' nor an equal sign '=' character.
{
public:
PropertyFileConfiguration();
Creates an empty PropertyFileConfiguration.
PropertyFileConfiguration(std::istream& istr);
Creates an PropertyFileConfiguration and loads the configuration data
from the given stream, which must be in properties file format.
PropertyFileConfiguration(const std::string& path);
Creates an PropertyFileConfiguration and loads the configuration data
from the given file, which must be in properties file format.
void load(std::istream& istr);
Loads the configuration data from the given stream, which
must be in properties file format.
void load(const std::string& path);
Loads the configuration data from the given file, which
must be in properties file format.
void save(std::ostream& ostr) const;
Writes the configuration data to the given stream.
The data is written as a sequence of statements in the form
<key>:
<value>
separated by a newline character.
void save(const std::string& path) const;
Writes the configuration data to the given file.
protected:
~PropertyFileConfiguration();
private:
void parseLine(std::istream& istr);
static int readChar(std::istream& istr);
};
} } // namespace Poco::Util
endif // Util_PropertyFileConfiguration_INCLUDED
(C) Æliens
04/09/2009
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