Do not insert equal sign if one already

Johan Andersson johan.rejeep at gmail.com
Fri Nov 5 04:13:08 EDT 2010


Ahh... haskell-indent-align-def is pretty much what I'm looking for. Why not
have a smart interactive version of this?

On Fri, Nov 5, 2010 at 9:08 AM, Deniz Dogan <deniz.a.m.dogan at gmail.com>wrote:

> 2010/11/4 Johan Andersson <johan.rejeep at gmail.com>:
> > Well, I used this command mostly to get the equal signs aligned. When you
> > change a functions arguments, the equal signs will not be aligned
> anymore.
> > Then it great to be able to just quickly align them and in that case you
> > don't want to insert an equal sign.
>
> Sorry, I had misunderstood the intent of the command.
>
> > Maybe the function could be split up into two? One that only aligns and
> one
> > that aligns and insert the equal sign.
>
> I'm not sure there is any point in splitting it up into two functions
> as you described as the body of one of them would essentially be only
> (insert "="). And haskell-indent-align-def already does the other
> part.
>
> > On Thu, Nov 4, 2010 at 12:19 AM, Deniz Dogan <deniz.a.m.dogan at gmail.com>
> > wrote:
> >>
> >> 2010/11/2 Johan Andersson <johan.rejeep at gmail.com>:
> >> > Or maybe this is better so you can be anywhere in a line without
> >> > inserting
> >> > the equal sign:
> >> > (unless (string-match "=" (buffer-substring-no-properties
> >> > (line-beginning-position) (line-end-position)))
> >> >     (insert "= "))
> >>
> >> Consider this example:
> >>
> >> foo a | a == 1 = 2
> >>  | a == 2 *
> >>
> >> Note that the second line needs indentation and you want to both
> >> indent the line and insert "=". With your latest suggestion, it would
> >> not insert the character.
> >>
> >> I think your first idea with looking-back is the better way to go,
> >> even though I wonder why you use this command if you already have an
> >> equals sign.
> >>
> >> --
> >> Deniz Dogan
> >
> >
>
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