[fpc-pascal] New feature: IfThen() intrinsic

[silvioprog]

On Mon, Feb 1, 2016 at 4:47 PM, Sven Barth <pascaldragon at googlemail.com>
wrote:

> On 01.02.2016 20:33, Marcos Douglas wrote:
> > On Mon, Feb 1, 2016 at 5:06 PM, David Butler <djbutler at gmail.com> wrote:
> >> Speaking personally, the reason why I like Pascal syntax over C is
> exactly
> >> because it isn't short. I prefer the verbosity of Pascal rather than
> >> "cryptic" syntax of the C family. e.g. Pascal uses "function" not
> "func",
> >> "procedure" not "proc", "if then else" not "if ()", etc. Using short
> C-like
> >> syntax in Pascal goes against the long established style of Pascal.
> >
> > +1
> >
> > IMHO we can't use "IfThen" (or iif, IfThenElse, etc) as if it were a
> > real function, because it is not.
> >
> > So, according to the "spirit of Pascal, what do you think about this?
> >
> >
> > V := inline If Condition then ThenExpr else ElseExpr;
> >
> >
> > Only "inline" keyword will be introduced.
> > But I don't know if will be more hard to implement this.
>
> If we would go the route of such an if-expression instead of an
> intrinsic then just leave away the "inline". That's absolutely not
> needed... (Note: implementation wouldn't be hard at all)


When you format this code (e.g using Ctrl+D) the result is a very ugly
syntax:

var
  S: string;
  B: Boolen = True;
begin
  S :=
    if B then
      'A'
    else
      'B';
end;

And I think that it breaks compatibility with many Pascal syntax
beautifier. IMHO Iif() (or something like this) sounds better.

-- 
Silvio Clécio
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