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// (C) 2013 Cybozu.
#include "config_parser.hpp"
#include <fstream>
namespace {
const char white_spaces[] = " \f\n\r\t\v";
inline void rtrim(std::string& s) {
s.erase( s.find_last_not_of(white_spaces) + 1 );
}
inline void ltrim(std::string& s) {
s.erase( 0, s.find_first_not_of(white_spaces) );
}
} // anonymous namespace
namespace cybozu {
void config_parser::load(const std::string& path) {
m_config.clear();
std::ifstream is(path);
if( !is )
throw std::runtime_error("failed to open " + path);
unsigned int lineno = 0;
for( std::string l; std::getline(is, l); ) {
lineno++;
ltrim(l);
rtrim(l);
if( l.empty() || l[0] == '#' ) continue;
std::size_t n = l.find('=');
if( n == std::string::npos )
throw parse_error(path, lineno);
std::string key = l.substr(0, n);
rtrim(key);
std::string value = l.substr(n+1);
ltrim(value);
// unquote the value
std::size_t len = value.size();
if( len >= 2 && value[0] == '"' && value[len-1] == '"' ) {
value = value.substr(1, len-2);
}
set(key, value);
}
}
} // namespace cybozu
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