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PropertyFileConfiguration.cpp
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187 lines (158 loc) · 4.17 KB
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//
// PropertyFileConfiguration.cpp
//
// $Id: //poco/1.4/Util/src/PropertyFileConfiguration.cpp#1 $
//
// Library: Util
// Package: Configuration
// Module: PropertyFileConfiguration
//
// Copyright (c) 2004-2009, 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.
//
#include "Poco/Util/PropertyFileConfiguration.h"
#include "Poco/Exception.h"
#include "Poco/String.h"
#include "Poco/Path.h"
#include "Poco/FileStream.h"
#include "Poco/LineEndingConverter.h"
#include "Poco/Ascii.h"
using Poco::trim;
using Poco::Path;
namespace Poco {
namespace Util {
PropertyFileConfiguration::PropertyFileConfiguration()
{
}
PropertyFileConfiguration::PropertyFileConfiguration(std::istream& istr)
{
load(istr);
}
PropertyFileConfiguration::PropertyFileConfiguration(const std::string& path)
{
load(path);
}
PropertyFileConfiguration::~PropertyFileConfiguration()
{
}
void PropertyFileConfiguration::load(std::istream& istr)
{
clear();
while (!istr.eof())
{
parseLine(istr);
}
}
void PropertyFileConfiguration::load(const std::string& path)
{
Poco::FileInputStream istr(path);
if (istr.good())
load(istr);
else
throw Poco::OpenFileException(path);
}
void PropertyFileConfiguration::save(std::ostream& ostr) const
{
MapConfiguration::iterator it = begin();
MapConfiguration::iterator ed = end();
while (it != ed)
{
ostr << it->first << ": " << it->second << "\n";
++it;
}
}
void PropertyFileConfiguration::save(const std::string& path) const
{
Poco::FileOutputStream ostr(path);
if (ostr.good())
{
Poco::OutputLineEndingConverter lec(ostr);
save(lec);
lec.flush();
ostr.flush();
if (!ostr.good()) throw Poco::WriteFileException(path);
}
else throw Poco::CreateFileException(path);
}
void PropertyFileConfiguration::parseLine(std::istream& istr)
{
static const int eof = std::char_traits<char>::eof();
int c = istr.get();
while (c != eof && Poco::Ascii::isSpace(c)) c = istr.get();
if (c != eof)
{
if (c == '#' || c == '!')
{
while (c != eof && c != '\n' && c != '\r') c = istr.get();
}
else
{
std::string key;
while (c != eof && c != '=' && c != ':' && c != '\r' && c != '\n') { key += (char) c; c = istr.get(); }
std::string value;
if (c == '=' || c == ':')
{
c = readChar(istr);
while (c != eof && c) { value += (char) c; c = readChar(istr); }
}
setRaw(trim(key), trim(value));
}
}
}
int PropertyFileConfiguration::readChar(std::istream& istr)
{
for (;;)
{
int c = istr.get();
if (c == '\\')
{
c = istr.get();
switch (c)
{
case 't':
return '\t';
case 'r':
return '\r';
case 'n':
return '\n';
case 'f':
return '\f';
case '\r':
if (istr.peek() == '\n')
istr.get();
continue;
case '\n':
continue;
default:
return c;
}
}
else if (c == '\n' || c == '\r')
return 0;
else
return c;
}
}
} } // namespace Poco::Util