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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* configparser.cc
*
* Sat Jun 29 21:55:02 CEST 2013
* Copyright 2013 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* DrumGizmo 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "configparser.h"
#include <hugin.hpp>
#include <pugixml.hpp>
static bool assign(std::string& dest, const std::string& val)
{
dest = val;
return true;
}
template<typename T>
static bool attrcpy(T& dest, const pugi::xml_node& src, const std::string& attr, bool opt = false)
{
const char* val = src.attribute(attr.c_str()).as_string(nullptr);
if(!val)
{
if(!opt)
{
ERR(configparser, "Attribute %s not found in %s, offset %d\n",
attr.data(), src.path().data(), (int)src.offset_debug());
}
return opt;
}
if(!assign(dest, std::string(val)))
{
ERR(configparser, "Attribute %s could not be assigned, offset %d\n",
attr.data(), (int)src.offset_debug());
return false;
}
return true;
}
bool ConfigParser::parseString(const std::string& xml)
{
pugi::xml_document doc;
pugi::xml_parse_result result = doc.load_buffer(xml.data(), xml.size());
if(result.status)
{
ERR(configparser, "XML parse error: %d", (int)result.offset);
return false;
}
pugi::xml_node config_node = doc.child("config");
// Config xml without the version tag defaults to 1.0
std::string version = "1.0";
attrcpy(version, config_node, "version", true);
if(version != "1.0")
{
ERR(configparser, "Only config v1.0 XML supported.");
return false;
}
for(pugi::xml_node value_node : config_node.children("value"))
{
auto name = value_node.attribute("name").as_string();
if(std::string(name) == "")
{
continue;
}
auto value = value_node.child_value();
values[name] = value;
}
return true;
}
std::string ConfigParser::value(const std::string& name, const std::string& def)
{
if(values.find(name) == values.end())
{
return def;
}
return values[name];
}
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