[Mono-dev] Terminal config for mono csharp shell?

[Robert N]

stty sane make sense in terms of a TERM=linux and either a messed up/missing termcap and/or missing capabilities during autogen/configure and shell that is not quite right...
The fact that the console.unix.c works across all the std linux flavors and os-x would suggest that something in your environment is different. Not sure what your 'droid dev environment is like, but if you can build/debug mono, you can look at how it is init & exiting in the app-domain.c/console-io.c/console-unix.c routines.
It should 'just work', but that requires a very clean environment as Mono does an very generic (iffy IMHO) job of tty exiting (also init'ing).  If you look at the ConsoleDriver the extent of the tty exit/teardown is 'string' that is sent is a hardcoded DC1 signal (0x11) which is Ctrl-Q (XON). You can browse the native driver function in console-unix.c, it is running on a gc'd thread, the std c lib function atexit is called with the tty teardown function and it does a very generic teardown (flushing the pipes and setting the ECHO env to true).
Is this right or wrong? Depends upon who you ask ;-) Programs written in python have this this issue all the time with using no echo tty mode and properly exiting, it is usually a threading issue, but hard to prevent. A lot of P-coders just place an os.system('stty sane') in their exit code, perl coders place system("stty sane");  curses users should always use endwin(); reset(); to clean things up, etc... 
The fact that the console.unix.c works across all the std linux flavors and os-x would suggest that something in your environment is different. Not sure what your 'droid dev environment is like, but if you can build/debug mono, you can look at how it is init & exiting in the app-domain.c/console-io.c/console-unix.c routines.

From: chaselton at gmail.com
Date: Sat, 6 Jun 2015 19:39:16 -0500
To: mono-devel-list at lists.ximian.com
Subject: Re: [Mono-dev] Terminal config for mono csharp shell?

Additionally, running 'stty sane' after exiting the REPL solves the problem.  Maybe there is a way to set the REPL to run a command on quitting?

On June 6, 2015 8:04:47 AM CDT, Cyd Haselton <chaselton at gmail.com> wrote:
Are there any special terminal and/or shell settings I should set for the csharp shell?



csharp works okay...minus some cursor jumping...but after quitting the console shell behaves oddly until I exit it and re-enter.



Example:

/home/kbox $ csharp

Mono C# Shell, type "help;" for help                                                 

Enter statements below.

csharp> DateTime.Now                                                                 06/06/2015 13:00:31

csharp> help                                                                         "Static methods:

  Describe (object);       - Describes the object's type

  LoadPackage (package);   - Loads the given Package (like -pkg:FILE)

  LoadAssembly (assembly); - Loads the given assembly (like -r:ASSEMBLY)

  ShowVars ();             - Shows defined local variables.

  ShowUsing ();            - Show active using declarations.

  Prompt                   - The prompt used by the C# shell

  ContinuationPrompt       - The prompt for partial input

  Time (() => { });        - Times the specified code

  print (obj);             - Shorthand for Console.WriteLine

  quit;                    - You'll never believe it - this quits the repl!

  help;                    - This help text

  TabAtStartCompletes      - Whether tab will complete even on empty lines

"

csharp> quit



Environment shell after quitting:

/home/kbox $ /home/kbox $ /home/kbox $ /home/kbox $ /home/kbox $ /home/kbox $ /home/kbox $ > /data/data/jackpal.androidterm/kbox2/bin/bash: \: not found

/home/kbox $ /home/kbox $ /home/kbox $ /home/kbox $ /home/kbox $ /home/kbox $



After exiting environment shell...you can't see the 'exit' command I typed:

/home/kbox $ 127|u0_a186 at altev:/ $

127|u0_a186 at altev:/ $

127|u0_a186 at altev:/ $

127|u0_a186 at altev:/ $

127|u0_a186 at altev:/ $



Re-entering the environment shell:

127|u0_a186 at altev:/ $ /data/data/jackpal.androidterm/kbox2/bin/kbox_shell

/home/kbox $

/home/kbox $

/home/kbox $

/home/kbox $


-- 

Sent from my Android device with K-9 Mail. Please excuse my brevity.
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