xpdfKeyCodeF1    1642 lib/pdf/xpdf/GlobalParams.cc     *code = xpdfKeyCodeF1 + (p0[1] - '1');
xpdfKeyCodeF1    1647 lib/pdf/xpdf/GlobalParams.cc     *code = xpdfKeyCodeF1 + 10 * (p0[1] - '0') + (p0[2] - '0') - 1;