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From JP Bader ...@zavteq.com>
Subject Re: Would anyone care if we ditched support for semicolons being optional?
Date Thu, 23 Feb 2012 17:51:51 GMT
This makes sense.  I personally prefer having something denote the end
of an action ( carriage return can be misconstrued, but sometimes I
like my code lining up sometimes).

And classes w/ thousands of lines are very confusing...refactor! :)

On Thu, Feb 23, 2012 at 11:26 AM, David Arno <david@davidarno.org> wrote:
>> From: JP Bader [mailto:jp@zavteq.com]
>> Sent: 23 February 2012 17:10
>>
>> The only question/reference point I have is the lack of requirement for
> this in several other
>> languages I've recently been learning, i.e. Ruby, Python, Scala (IIRC).
> They can compile
>> just fine with or without ';'.  Is it really that important to make this
> required?
> Scala has the same sloppy approach to semicolons as AS3 and so suffers from
> similar problems when the compiler does and doesn't infer semicolons
> wrongly, eg see
> http://stackoverflow.com/questions/2246212/why-does-scalas-semicolon-inferen
> ce-fail-here. In this case "well Scala does it badly too" seems a poor
> argument.
>
> Ruby (as far as I know) does things properly. A newline always denotes the
> end of an expression. So BNF can precisely depict the language as ";" and
> "\n" are equivalent. Semicolons aren't really optional in Ruby, it just
> makes no sense to put them at the end of a line.
>
> I don't know Python, so cannot comment on that.
>
> When a language uses sloppy optional semicolons, one is forced down one of
> two paths with a parser: hand craft a parser (the approach used for mxmlc I
> believe) or hack a BNF-based one to handle the semicolons (the approach
> taken by Falcon.) I'd prefer to avoid both of these methods and instead to
> come up with a precise BNF definition of AS3 (or as near to AS3 as BNF can
> get.) Doing so will make writing the parser far easier and gives us a parser
> that can be expressed in a meta language. A whole range of different
> language-based compilers (C, C#, Java, etc) can be generated from the one
> source.
>
> David.
>
>
>
> JP
>
> On Thu, Feb 23, 2012 at 6:53 AM, saurabh jain <jainsaurabh86@gmail.com>
> wrote:
>> +1 to mandatory semicolon.
>> I always thought why this was not mandatory.
>>
>> Regards,
>> Saurabh
>
>
>
> --
> JP Bader
> Principal
> Zavteq, Inc.
> @lordB8r | jp@zavteq.com
> 608.692.2468
>



-- 
JP Bader
Principal
Zavteq, Inc.
@lordB8r | jp@zavteq.com
608.692.2468

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