[vim/vim] Why does vim not highlight bash function names that start with the letters "do"? (#4033)

[Ben Burrill]

If you write your bash functions using the function syntax, function names that start with do don't get highlighted, so for example:

function download_something {
    :
}

(in Vim, download_something doesn't get highlighted, but if you change it to something that doesn't start with "do" it does)

Initially I thought this was some weird conflict with highlighting for the do keyword, but looking at syntax/sh.vim, it looks like this is very intentionally done, and only for the function syntax (not the function_name() {} syntax).

But why? The shell I'm using (bash 4.4) doesn't have any problem with function names starting with do. And the shFunctionTwo region responsible for this is set in a if exists("b:is_bash") block, so I wouldn't think it has anything to do with any other shells. Did old versions of bash not like such function names or something?

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[dkearns]

dkearns left a comment (vim/vim#4033)

Fixed by 955c02d

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[dkearns]

Closed #4033 as completed.

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