Error: "Could not derive terminal width"

[bnvk]

Really nice lil preview tool. Thank you for making it 😁

I sometimes use tool called ranger which offers paned file browsing and previews. Using mdv was a no brainer and is much nicer than the single colored node js one I was using before. However, now when previewing markdown files within Ranger, I see the following error at the top of each file

!!! Could not derive your terminal width !!!

Which I am assuming is coming from mdv but am not 100% sure. I filed an issue on Ranger's repo and am cross posting here. Any insights would be appreciated!

[axgkl]

Hi, thanks, commented there regarding how to workaround it and what I'll do to fix it. Let me know if the export COLUMNS and LINES would work for you...

[bnvk]

Hi, thanks, commented [there](ranger/ranger#675) regarding how to workaround it and what I'll do to fix it.

Hey @AXGKI thanks much for looking into this. I just updated my build and I tried with your suggested hack but am still noticing the issue. I guess that means it's an issue with Ranger that needs to be resolved, yes?

[axgkl]

huh, does ranger unset the COLUMNS export?

could you give it a shot and try this:

within markdownviewer.py search the line term_columns, term_rows = envget('COLUMNS'), envget('LINES') (around 193 currently) and change the word "COLUMNS" to "FUBAR"

then export FUBAR=50 before calling ranger.

still error or resolved? If so I'll add an alternative to $COLUMNS...