Method get_line

crawl-ref/source/unicode.cc:307–432

}

string FileLineInput::get_line()
{
    ASSERT(f);
    vector<utf16_t> win;
    string out;
    char buf[512];
    char32_t c;
    int len;

    switch (bom)
    {
    case BOM_NORMAL:
        do
        {
            if (!fgets(buf, sizeof buf, f))
            {
                seen_eof = true;
                break;
            }
            out += buf;
            if (out[out.length() - 1] == '\n')
            {
                out.erase(out.length() - 1);
                break;
            }
        } while (!seen_eof);
        return mb_to_utf8(out.c_str());

    case BOM_UTF8:
        do
        {
            if (!fgets(buf, sizeof buf, f))
            {
                seen_eof = true;
                break;
            }
            out += buf;
            if (out[out.length() - 1] == '\n')
            {
                out.erase(out.length() - 1);
                break;
            }
        } while (!seen_eof);
        return utf8_validate(out.c_str());

    case BOM_UTF16LE:
        do
        {
            if (fread(buf, 2, 1, f) != 1)
            {
                seen_eof = true;
                break;
            }
            c = ((uint32_t)((unsigned char)buf[0]))
              | ((uint32_t)((unsigned char)buf[1])) << 8;
            if (c == '\n')
                break;
            win.push_back(c);