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- Subject: Re: Syntactical ugliness - does it matter?
- From: Paul K <paul@...>
- Date: Wed, 5 Jun 2019 08:01:58 -0700
>> local resource x = 5
> So what you showed appears invalid grammatically ... but the parser allows it?
It's interpreted as `local resource; x = 5`, which is valid.
Paul.
On Wed, Jun 5, 2019 at 7:59 AM Dibyendu Majumdar <mobile@majumdar.org.uk> wrote:
>
> On Wed, 5 Jun 2019 at 15:53, Matthew Wild <mwild1@gmail.com> wrote:
> > $ cat resource.lua
> > local resource x = 5
> > print(resource, x)
> >
> > $ lua5.3 resource.lua
> > nil 5
> >
>
> Okay, I am a bit puzzled. The grammar says:
>
> local namelist [‘=’ explist]
>
> namelist ::= Name {‘,’ Name}
>
> So what you showed appears invalid grammatically ... but the parser allows it?
>
> But I agree that if above statement is currently accepted then there
> is a compatibility issue.
>
> Regards
>
- References:
- Syntactical ugliness - does it matter?, Dibyendu Majumdar
- Re: Syntactical ugliness - does it matter?, Pavel
- Re: Syntactical ugliness - does it matter?, Oliver Kroth
- Re: Syntactical ugliness - does it matter?, Ulrich Schmidt
- Re: Syntactical ugliness - does it matter?, Sergey Zakharchenko
- Re: Syntactical ugliness - does it matter?, Rodrigo Azevedo
- Re: Syntactical ugliness - does it matter?, Egor Skriptunoff
- Re: Syntactical ugliness - does it matter?, Dibyendu Majumdar
- Re: Syntactical ugliness - does it matter?, Ryan Ford
- Re: Syntactical ugliness - does it matter?, szbnwer@<a href="/cgi-bin/echo.cgi?gmail.com">...</a>
- Re: Syntactical ugliness - does it matter?, Matthew Wild
- Re: Syntactical ugliness - does it matter?, Dibyendu Majumdar
- Re: Syntactical ugliness - does it matter?, Matthew Wild
- Re: Syntactical ugliness - does it matter?, Dibyendu Majumdar
- Re: Syntactical ugliness - does it matter?, Matthew Wild
- Re: Syntactical ugliness - does it matter?, Dibyendu Majumdar
- Re: Syntactical ugliness - does it matter?, Matthew Wild
- Re: Syntactical ugliness - does it matter?, Dibyendu Majumdar