Case sensitivity - dxf2gcode integration

When integrating dxf2gcode in linuxcnc, case sensitivity comes into play if the extension is in capital letters (.DXF). In my case, I made the following changes:

[FILTER]
PROGRAM_EXTENSION = .png,.gif,.jpg Grayscale Depth Image
PROGRAM_EXTENSION = .py Python Script

PROGRAM_EXTENSION =.DXF 2D ACad/QCad Drawing
PROGRAM_EXTENSION =.dxf 2D ACad/QCad Drawing
dxf = dxf2gcode.py
DXF = dxf2gcode.py
PROGRAM_FILTER = python
PROGRAM_EXTENSION = *.py Python Script


Is there a way to remove case sensitivity (as applies to the .dxf extension) without redundancy?

I ran into this problem when I downloaded a sample .DXF file from the web. The edit above was my weak attempt at solving the issue. However, it doesn't cover all possibilities.
I have a little programming knowledge and that helped me see the problem, but not everyone is in the same boat. It would also be a relatively simple fix to point out to users that extensions would need to be converted to lowercase, at the very least.

Thanks in advance

Linux is case sensitive.
If you ask it to find xxx.dxf, it will not find xxx.DXF

You can have
PROGRAM_EXTENSION =.DXF,.dxf 2D ACad/QCad Drawing
and save one line in your ini file

The better solution is to stop using capitalised extensions.

That is a nasty windoze habit which goes right back to the enforced capitalisation and 8.3 filename limits with the first 16 bit DOS
Unfortunately some software producers think it gives their software more impact, to 'shout' the file extension

regards