Implementation direction for shell-script-mode with tree-sitter

[João Paulo Labegalini de Carvalho]

Hi,

The tree-sitter-bash grammar does not include many reserved words and builtin commands that are currently fontified by the regex based fontication in shell-script-mode.

Here a list of the ones that tree-sitter-bash does not recognize:

("time" "coproc" "type" "trap" "exit" "exec" "continue" "break" "return" "logout" "bye")

According to the Bash Reference Manual, all of the above are reserved words.

Should I make a PR to tree-sitter-bash to incorporate the missing keywords or should I just filter them out of the list that I obtain through (and other variables in `shell-script-mode'):

(append (sh-feature sh-leading-keywords)

        (sh-feature sh-other-keywords))

I am attaching the patch so everyone can see code and understand better what I did. I welcome all criticism and feedback.

PS.: I am looking at the tree-sitter-bash and it does not seem very complicated to extend it to recognize the missing keywords. But I can definitely keep working independently of that.

--

João Paulo L. de Carvalho
Ph.D Computer Science |  IC-UNICAMP | Campinas , SP - Brazil
Postdoctoral Research Fellow | University of Alberta | Edmonton, AB - Canada

joao.carvalho@ic.unicamp.br
joao.carvalho@ualberta.ca

sh-script-treesit.patch
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