win10: another clash w/ JPSoft's tcc

[rob]

A few years ago I reported a clash between vim 9.0.412 in non-gui mode
on Win10, with tcc by JPSoft.

The screen would become distorted in the editor, and upon exiting from
tcc the screen is distorted.

The problem now looks just like what I reported back then.

It happened to an earlier release of vim 9, so I upgraded vim and I'm
getting the same distortion of the characters on the screen.

It primarily happens when git calls vim within tcc.   I have git
2.37.2.windows.2

--rob solomon

[Steve Martin]

Any way to share a screenshot? Do the characters on the screen change as the cursor gets moved? I found that problem sometime back with Vim 8. However, that was resolved by changing the terminal software I was using.

[rob]

For Windows 10 it's not feasible for me to change my terminal software.

And yes, the characters on screen do change as the cursor gets moved.  But they are not in sync.  For example, the cursor is on the left hand edge, and the characters that change are on the middle of that line.

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[Robert Solomon]

Notice that the cursor is the left edge but the text is progressively far from that.

[Steve Martin]

Ya, no that's a very different problem than the one I ran into back in the day with VIM 8. Rather than moving, the characters seemed to shift between being highlighted or having different background colors with each key press. And as I said, in my case, the fix was to change the terminal software I was using on Windows.

[Steve Martin]

Actually.... That looks like the kind of thing that happens when you paste some new text into VIM without switching to Paste mode first. Is that text being entered by TCC without your input?

[Robert Solomon]

No.

The context is that sometimes when I do

Git commit

I get that screen.   I use vim as my git editor 

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[Robert Solomon]

Is there anything I can do about this?

Is this expected behavior?

[Steve]

My best guess would be that it's vim auto indent mode acting up with the way tcc is entering that text. You could try turning off auto indent in your settings but adding the line:

set noai

In your .vimrc file. At least it will confirm whether that is the problem or not.

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[Dominique Pellé]

Steve wrote

> My best guess would be that it's vim auto indent mode acting up
> with the way tcc is entering that text. You could try turning off
> auto indent in your settings but adding the line:
>
> set noai
>
> In your .vimrc file. At least it will confirm whether that is the problem or not.

It does not seem to be the issue, since even the
Ex command line prompt is shifted when I look
at the screenshot.

To me, it looks like a bug in the terminal.
I searched for "JPSoft's tcc". I'm not familiar
with it, but it looks like a shell rather than a
terminal if I read https://jpsoft.com/products/tcc-le.html

So can't you run tcc inside a better terminal than
the old Windows terminal (which is presumably
what you're using)?

Or is JPSoft's tcc combining both functionalities of a
terminal and a shell? That would be odd, but in the
Windows world it would not surprise me.

Regards
Dominique

[Andrew Bernard]

By coincidence today I suspected this mat be autoindent as well.

JPSoft tcc is an app that provides a command line interface to Windows,
with added extras. But it you think about it, CMD is also an app, as is
Powershell.

Why not try running in Powershell and see what happens? Or even CMD?

Andrew

[Steve]

Good points. 

In Windows 11 you can now tell the OS to use the new Windows Terminal as the default, which might make a difference if that is what is happening with tcc. Of course it may not be worth upgrading to 11 just to see if that fixes the problem. If tcc supplies it's own terminal software, it could be unfixable by the user.

-- Steve

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