Simon Wright <[email protected]> writes:
> Something like this code was recently posted on StackOverflow, and indents as
> shown. 5.1.7 (from monotone, just now).
>
> procedure Nested_If_Else is
> begin
> if 1 > 2 then
> null;
> else if 2 > 3 then
> null;
> else if 3 > 4 then
> null;
> else
> null;
> end if;
> end if;
> end if;
> end Nested_If_Else;
I'm guessing this was written by a C programmer, who did not learn about
'elsif'.
This is strictly equivalent to:
if 1 > 2 then
null;
elsif 2 > 3 then
null;
elsif 3 > 4 then
null;
else
null;
end if;
So that's one right solution.
> I see that if I put a newline after the ‘else’s then all is OK;
Giving:
if 1 > 2 then
null;
else
if 2 > 3 then
null;
else
if 3 > 4 then
null;
else
null;
end if;
end if;
end if;
This is the other right solution; it makes things clearer if you start
adding code between the 'else' and 'if', or between the 'end if's.
> perhaps it’s right for ada-mode to penalize such horrid style!
Yes, it's a good clue that you should be using one of the two solutions
above.
I'll leave it alone; I looked at the code that produces this,
and changing it would change a lot of other stuff.
I will add this as a test case, with a comment about bad style.
--
-- Stephe
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