Re: [htmltmpl] Patch to fix global_vars and loop problem...

[Mathew R. <mat...@re...>]

good example -> given this , I would agreee that it is a bug.

... and yes you are correct, the stderr message is generated by 'use =
warnings' not 'use strict'.

Mathew

> > Relating this to TMPL_LOOP's... the question becomes, "Is a variable =
inside=20
> > a loop considered to be equivalent to a hash key, or equivalent to a =

> > variable?", alternatively it could be asked "What is the =
'strict'ness of=20
> > TMPL_LOOP variables (as compared to Perl's use of 'strict'ness)?".
> > =20
>=20
> According to the H::T docs ...
> "For the computer-science geeks among you, a <TMPL_LOOP> introduces a =
new
> scope much like a perl subroutine call."
> So the scope (when global vars is turned on) is that it should behave =
like a
> variable, not a hash (since it is a TMPL_VAR not a TMPL_KEY right :). =
For
> instance, the following simple script..
>=20
> #!/usr/bin/perl
> use strict;
>                                                                        =
     =20
>                                                                        =
       =20
> our $var =3D 'a test';
> &test();
>                                                                        =
     =20
>                                                                        =
       =20
> sub test
> {
>   my $var =3D 'another test';
>   $var =3D undef;
>   print "This is $var\n";
> }
>=20
> produces this output
> 'This is'
>=20
> Even with 'use strict' (and even with 'use warnings' STDOUT still gets =
this
> output even if STDERR get's the warning).
>=20
> So, in my opinion he is right. This is a bug. And I even think sam =
admitted it
> was and that somehow what was needed was to check 'exists' and not =
truthfulness.
>=20
>=20
> > Since we are talking about TMPL_LOOP variables, not Perl hash keys, =
it gets
> back to the question(s) posed above.
> >=20
> > > Another example:
> > >=20
> > > -- test.pl --
> > > #!/usr/bin/perl
> > > my $tvar =3D "this is a test";
> > > $tvar =3D undef;
> > > print "Tvar=3D$tvar\n";
> > > -----------------------------------------
> > > The above prints: Tvar=3D
> >=20
> > true - but only if you dont do:
> >=20
> > use strict;
> > use warnings;
>=20
> Even if you 'use strict' and 'use warnings' you get the right output =
(like I
> said before, on STDOUT even if you do get a 'warning' on STDERR)
>=20
>=20
> Michael Peters
> Venzia
>=20
>=20
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