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/* Copyright © 2005-2013 Roger Leigh <rleigh@debian.org>
*
* schroot is free software: you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* schroot is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
* <http://www.gnu.org/licenses/>.
*
*********************************************************************/
#include <config.h>
#include <fstream>
#include "keyfile-reader.h"
using namespace sbuild;
keyfile_reader::keyfile_reader(keyfile& store):
store(store),
group(),
group_set(false),
key(),
key_set(false),
value(),
value_set(false),
comment(),
comment_set(false),
line_number(0)
{}
keyfile_reader::keyfile_reader (keyfile& store,
std::string const& file):
keyfile_reader(store)
{
std::ifstream fs(file.c_str());
if (fs)
{
fs.imbue(std::locale::classic());
read_stream(fs);
}
else
{
throw error(file, keyfile::BAD_FILE);
}
}
keyfile_reader::keyfile_reader (keyfile& store,
std::istream& stream):
keyfile_reader(store)
{
read_stream(stream);
}
keyfile_reader::~keyfile_reader()
{}
void
keyfile_reader::read_stream(std::istream& stream)
{
keyfile tmp;
std::string line;
begin();
while (std::getline(stream, line))
{
parse_line(line);
// Insert group
if (this->group_set)
{
if (tmp.has_group(this->group))
throw error(this->line_number, keyfile::DUPLICATE_GROUP, this->group);
else
tmp.set_group(this->group, this->comment, this->line_number);
}
// Insert item
if (this->key_set && this->value_set)
{
if (tmp.has_key(this->group, this->key))
throw error(this->line_number, this->group, keyfile::DUPLICATE_KEY, this->key);
else
tmp.set_value(this->group, this->key, this->value, this->comment, this->line_number);
}
}
end();
// TODO: do inserts here as well.
this->store += tmp;
}
void
keyfile_reader::begin()
{
line_number = 0;
}
void
keyfile_reader::parse_line (std::string const& line)
{
if (comment_set == true)
{
comment.clear();
comment_set = false;
}
if (group_set == true)
{
// The group isn't cleared
group_set = false;
}
if (key_set == true)
{
key.clear();
key_set = false;
}
if (value_set == true)
{
value.clear();
value_set = false;
}
if (line.length() == 0)
{
// Empty line; do nothing.
}
else if (line[0] == '#') // Comment line
{
if (!comment.empty())
comment += '\n';
comment += line.substr(1);
}
else if (line[0] == '[') // Group
{
std::string::size_type fpos = line.find_first_of(']');
std::string::size_type lpos = line.find_last_of(']');
if (fpos == std::string::npos || lpos == std::string::npos ||
fpos != lpos)
throw error(line_number, keyfile::INVALID_GROUP, line);
group = line.substr(1, fpos - 1);
if (group.length() == 0)
throw error(line_number, keyfile::INVALID_GROUP, line);
comment_set = true;
group_set = true;
}
else // Item
{
std::string::size_type pos = line.find_first_of('=');
if (pos == std::string::npos)
throw error(line_number, keyfile::INVALID_LINE, line);
if (pos == 0)
throw error(line_number, keyfile::NO_KEY, line);
key = line.substr(0, pos);
if (pos == line.length() - 1)
value = "";
else
value = line.substr(pos + 1);
// No group specified
if (group.empty())
throw error(line_number, keyfile::NO_GROUP, line);
comment_set = true;
key_set = true;
value_set = true;
}
++line_number;
}
void
keyfile_reader::end()
{
}
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