OpenEuphoria

Re: Optional "then" and "do"

• Posted by Jason Gade <jaygade at ya?oo.c?m> May 15, 2008
• 986 views

CChris wrote:
> 
> Matt Lewis wrote:
> > 
> > yuku wrote:
> > > 
> > > Salix wrote:
> > > > But if I tend to forget "and". The result now is
> > > > 
> > > > }}}
<eucode>
> > > > if apple=1 bananas=3 then peach=7 end if
> > > > </eucode>
{{{

> > > > 
> > > > With optional "then" it would be
> > > > 
> > > > }}}
<eucode>
> > > > if apple=1 bananas=3 peach=7 end if
> > > > </eucode>
{{{

> > > > 
> > > > that is much harder to track down.
> > > 
> > > You can always write the "then" if you want. 
> > > Especially in such one-line if. 
> > > 
> > > Reason of making it optional is that it reduces the mental load of 
> > > remembering the correct delimiter for every if, for and while statement.
> > 
> > I argue that this mental load is dwarfed by the mental load required for
> > maintenance.
> > 
> > Matt
> 
> If using proper indentation to start and end code blocks, you'd get clearer
> code with less typing:
> }}}
<eucode>
> if something()
>     do_stuff()
>     while true
>         poll_channel()
> -- end of all three blocks
> </eucode>
{{{

> 
> Do away with end, do and then in one sweep.
> Make code structure visually clear, making maintainance easier. How clear is
> a sequence of interspersed "end if", "end for" and "end while"?
> 
> All editors I know, except Notepad, have a detab command. The only drawback
> of the above is the stronger need to use it when pasting code from other
> files.
> 
> CChris
> CChris

There's already a language that does this, it's called Python.

Mandatory indentation? No thanks.

--
A complex system that works is invariably found to have evolved from a simple
system that works.
--John Gall's 15th law of Systemantics.

"Premature optimization is the root of all evil in programming."
--C.A.R. Hoare

j.