line_break.cxx

#include "line_break.h"
 
namespace cgv {
    namespace os {
        std::istream& safe_getline(std::istream& is, std::string& line)
        {
            line.clear();
            std::istream::sentry se(is, true);
            std::streambuf* sb = is.rdbuf();
 
            for (;;) {
                int c = sb->sbumpc();
                switch (c) {
                case '\n':
                    return is;
                case '\r':
                    if (sb->sgetc() == '\n')
                        sb->sbumpc();
                    return is;
                case std::streambuf::traits_type::eof():
                    // Also handle the case when the last line has no line ending
                    if (line.empty())
                        is.setstate(std::ios::eofbit);
                    return is;
                default:
                    line += (char)c;
                }
            }
        }
    }
}