Re: Running an editor from ANSI C

On 06/06/2024 10:07, David Brown wrote:

On 06/06/2024 10:27, Malcolm McLean wrote:
 

It does work. But my compiler warns about rmpnam() being deprecated.
>

 I presume you mean "tmpnam()" here.  No, it has not been deprecated - not even in C23.  I could be wrong, but this sounds like one of MSVC's arbitrary self-declared deprecations, using scare tactics to encourage people to use MSVC's own functions rather than standard C functions, thus locking you into their tools and platform.
 I gather you are doing all this for fun, which is great.  You have set yourself a challenge with a total disregard for practicality or reality, and are writing this stuff for your own enjoyment.  We all need that kind of project at times.
 But it seems strange to limit yourself to an ancient and impractical language (C89/C90, which you inaccurately call "ANSI C") for "portability" and then worry about compiler-specific warnings.
 If you want to check if something is /actually/ deprecated or obsolescent, I'd recommend using a good source - such as future C standards (<https://open-std.org/JTC1/SC22/WG14/www/docs/n3220.pdf>) or the cppreference.com site <https://en.cppreference.com/w/c/io/tmpnam>.
  (Of course, tmpnam() does have plenty of potential problems, and for real code, you'd be better off using Windows-specific and/or POSIX-specific functions for this kind of thing.  But that would be against your rules.)
  

The shell is up and running.
It's not fully featured yet. It doesn't have redirection going or pipes. But you can explore directories and import and export files and print them with cat, an move them about with cp, rm, mv. And you can run BabyBasic scripts (currently just MiniBasic, but the plan is to develop). And host operating system commands, And now editing works. It's definitely a functional shell written in pure ANSI C.
It's a great project for a C programmer. See if you can compile it and get it to work.
It's a shell written in pure portable ANSI C with no dependencies other than the C Standard library.
Get the source here.
https://github.com/MalcolmMcLean/babyxrc
--
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https://www.lulu.com/spotlight/bgy1mm