Re: Reformat all of src/

[Paul Eggert]

Phillip Lord wrote:
> The commit hook already checks for some whitespace issues (spaces before
> tabs for instance).

That it checks for spaces-for-tabs is mostly an accident. I added 'git 
diff-index --check' to the pre-commit hook mostly to catch white space at line 
end, which can be a real problem due to languages like C and Elisp where such 
white space (typically invisible) can quietly change the semantics of a program.

Althoug the --check option also happens to look for space-before-tab in initial 
indent, this is not a significant problem in practice for us and we could easily 
remove that part of the check if we want. I haven't worried about it, though, 
because (like Stefan) I view this tab-vs-spaces thing as a waste of time. I 
don't even like the indent-tabs-mode thing that we default to in elisp code, as 
it's one more thing to worry about in an area where we should not be worrying.