Solved [TC 10.0] Parameter "%S:~-0,255" does not always work as ecpected

[petermad]

If I use a parameter in a button like: "%S:~-0,255" then the filename is returned without extension but ONLY if the file has an extension.

If the file has no extension, then the empty string is returned - I would still expect the file name without extension to be returned in that case.

[nsp]

If I use a parameter in a button like: "%S:~-0,255" then the filename is returned without extension but ONLY if the file has an extension.

If the file has no extension, then the empty string is returned - I would still expect the file name without extension to be returned in that case.

The syntax is also quite ambigous and not so well documented in the help. instead of -0 as -1 have different behavior, it could have been easier to have optional char after the ~ to indicate
- name without extension (!)
- extension only (+)
and then use usual substring numbering

[ghisler(Author)]

If I use a parameter in a button like: "%S:~-0,255" then the filename is returned without extension but ONLY if the file has an extension.

Confirmed, that's indeed a bug. I will fix it.

The syntax is also quite ambigous and not so well documented in the help.

Actually it is documented in Dialog box: Configuration - Change button bar, see the red part:

Note: All parameters now support substring fields in the form :~start,length, e.g. %N:~2,5 or %N:~-8,5 . To append a number directly after the length value, use another ~ character, e.g. %N:~2,5~2. Negative vaules are measured from the end of the string. Example: %P:~0,-1 cuts off the backslash from the path.
The Start value -0 is special: %N:~-0,20 copies the first 20 characters of the name without extension, %N:~-0,-20 the first 20 characters of the extension without the name.

[nsp]

About the Help,
I have to apologize as I'm using a dark version and it was not up to date...
// This could be good to distribute dark version with TC if you can get the authorization or redo the same "css" work as it was done...

It is also very difficult to read as no empty lines are present before the subsections "Notes" / "Special parameters"and no carriage return for Notes :

About functionality, it could be good to have a way to define no char limitation like :-~0,0 (complete name without extension) :-~0,-0(Complete extension) .

[petermad]

I have to apologize as I'm using a dark version and it was not up to date...

Wll - i have updated it: https://www.ghisler.ch/board/viewtopic.php?f=6&t=57594

it could be good to have a way to define no char limitation like :-~0,0 (complete name without extension) :-~0,-0(Complete extension)

That sounds til a nice feature to have +++

[petermad]

01.10.21 Fixed: Button bar, start menu: Parameter to append characters just from file name, not extension (like %N:~-0,255 or %S:~-0,255) didn't work if file didn't have an extension (32/64)

Confirmed fixed in TC 10.50b1