Re: [Proposal] M-x tabify to indent only when needed.

[Stefan Monnier]

>     +          (if (= (/ end-col tab-width) (/ beg-col tab-width))
>     +              ;; The spacing does not straddle a TAB boundary, so we 
> won't
>     +              ;; be able to use a TAB here anyway: there's nothing to do.
>     +              nil

> This detects a case where no tabs can be used.
> It doesn't detect the case where tabs already ARE used.

Those cases aren't matched by the regexp.

>     -(defvar tabify-regexp "[ \t][ \t]+"
>     +(defvar tabify-regexp " [ \t]+"

> Is that change supposed to exclude those other cases?

Exactly.


        Stefan