TSV highlighting doesn't work

[ZJaume]

Describe the bug you encountered:
I'm reading tab-separated files with two columns at it seems that it is still using the comma as delimiter.

cat file | bat -l tsv gives:

What did you expect to happen instead?
Highlight each column in a different color.

How did you install bat?

cargo install --locked bat

Cargo version: 1.53.0
OS: Ubuntu 20.04
bat version: 0.19

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bat version and environment

[keith-hall]

Thanks for reporting. We recently discussed one possible solution at #1977 (comment)

[ZJaume]

Would it be possiblo to merge this forkeith@c1a4e98? It seems to fix the issue for me. I've applied the commit patch to master and, after running ./assets/create.sh, cargo test shows all tests passing. I also ran some examples in CLI and highlighting looks good:

echo -e "yes\tMy word, separated" | ./target/debug/bat -l tsv

compared to master:

echo -e "yes\tMy word, separated" | bat -l tsv

Also piped csv seems to work automatically detecting separator:

[keith-hall]

feel free to create a PR for it. Ideally it needs some test files added to https://github.com/sharkdp/bat/tree/master/tests/syntax-tests/source/CSV to prove it highlights the various separated files correctly.