Works with CMD.EXE, no output with TCC.EXE

[Joe Caverly]

The following .CMD works properly when run from CMD.EXE, and output is displayed;

@setlocal
@echo off
ver
setlocal enabledelayedexpansion
for /f "tokens=*" %%A in ('type "owing.txt"') do (
  set /a N += 1
  set "Line!N!=%%A"
)

for /l %%i in (1 1 %N%) do echo !Line%%i!

endlocal

You can substitute "owing.txt" with a text file of your choosing.

When I run this from TCC, no output is displayed.

When I run this from CMDebug v22.00.42 x64 with Options -> CMD Syntax, it runs, but no output is displayed.

Joe

 

[vefatica]

Quoting CMD's FOR /?:

FOR /L %variable IN (start,step,end) DO command [command-parameters]

That is, with commas. When I add commas (and enable !delayed! expansion) it works fine in TCC.

for /l %%i in (1,1,%N%) do echo !Line%%i!

 

[Joe Caverly]

Looks like this is another one of those "it's CMD compatible as long as you make it TCC compatible".

The Microsoft syntax agrees that the for /l commas must also be used, but CMD.EXE still allows proper execution without the commas.

Joe

 

[rconn]

Looks like this is another one of those "it's CMD compatible as long as you make it TCC compatible".

I think it's more "TCC is CMD compatible, but CMD isn't CMD compatible".

I am curious how you came up with that (invalid in everything) syntax - did you find it in a third-party batch file, or did you type random input until CMD didn't actually blow up?

 

[Joe Caverly]

I came across Batch files - FOR loops which did not use commas to separate start stop end.

It works in CMD.EXE, regardless that it does not adhere to the Microsoft syntax.

Yes, I do use commas, but I wanted to see how it works with FOR /L in TCC.

It does not.

Joe

 

[vefatica]

I came across Batch files - FOR loops which did not use commas to separate start stop end.

There are no counted loop (FOR /L) examples on that page. If you follow the link to Windows NT 4 and later versions you see syntax and examples both with commas.

 

[Joe Caverly]

Yes, I realize that there are no FOR /L examples on that page.

I just wanted to see if a FOR /L works without commas. This works in CMD;

for /l %i in (1 1 10) do echo %i

but it does not work in TCC.

Joe

 

[rconn]

I just wanted to see if a FOR /L works without commas. This works in CMD;

for /l %i in (1 1 10) do echo %i

but it does not work in TCC.

Or more accurately, it fails to fail (as it should) in CMD because CMD doesn't recognize the invalid syntax.