On 02/26/14 01:05, Andrew Fish wrote: > > On Feb 25, 2014, at 2:04 PM, Laszlo Ersek <ler...@redhat.com > <mailto:ler...@redhat.com>> wrote: > >> The >> >> CSI Ps ; Ps ; Ps t >> >> escape sequence serves for window manipulation. We can use the >> >> CSI 8 ; <rows> ; <columns> t >> >> sequence to adapt eg. the xterm window size to the selected console mode. >> >> Reference: <http://rtfm.etla.org/xterm/ctlseq.html> >> > > Laszlo Xterm != PCANSI. So I’m don't think this is safe to do this you > have a real PCANSI terminal emulation running. > > There are a lot of similarities between VT100/PCANSI/VTUTF8 and xterm, > but they are not the same. So things can kind of seem like there > working, but they are not really 100% functional. > > From mucking about in the past I seem to remember: > 1) xterm (well at least the xterm-256 color, default for the Mac > Terminal.app) is UTF-8, For the output stuff you can mostly use VTUTF8Type. > 2) It is like VT100, but with differences. > INSERT/DELETE/END/PAGE_UP/PAGE_DOWN, and Function Keys, > 3) There are some different state machine constructs: ESC [ 1 * ~, ESC [ > 2 * ~, ESC [ 3 * ~, needed for function keys > F4. > 4) You can add a GUIDed device path for the terminal emulation type.
Yes, I figured it would be quite messy to armor this code from all sides. That's why I mentioned the PCD -- the default would be to disable this behavior, and the PCD could be set where people know for certain that PCANSI equals "xterm". Anyway I don't feel strongly about this individual patch (ie. 2/1). It would take a lot of work to make it robust enough for MdeModulePkg, and I don't think I can spend that effort. I'll certainly keep this patch in my own clone (it does make working with the UEFI shell a lot more convenient!), and perhaps we'll carry it out of tree. I'd like to thank you for the idea. Regarding patch 1/1 (ie. the list of new modes), I think that one is both less intrusive *and* more important. I'd really like to see that merged. (Of course we could carry that in parallel too.) Thanks! Laszlo ------------------------------------------------------------------------------ Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis & security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071&iu=/4140/ostg.clktrk _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
