Re (tilly) 3: autotie in Attribute Handlers

That beta does fix that issue, but I consider its behaviour with the following line to be wrong:

my %hash : Test('one', 'two', 'three)');
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Any human looking at this would say that the first closing paren is inside of a quoted string, and so this code is correct. But Attribute::Handlers disagrees. It is perfectly willing to stop at the first paren, and claim that the passed argument was the string:

"'one', 'two', 'three"
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And therefore the following quote is interpreted differently than it should be.

I assume that this is due to the heuristics it uses to parse Perl. If it is hard to fix (as I assume) then it is probably something to solve in 6.0. But I think it is a gotcha worth noting, along with the workaround:

my %hash : Test('one', 'two', 'three\)');
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Re: Re (tilly) 3: autotie in Attribute Handlers by TheDamian (Vicar) on Nov 04, 2001 at 05:12 UTC
Any human looking at this would say that the first closing paren is inside of a quoted string, and so this code is correct. Not a bug in Attribute::Handlers, but an inherent behaviour of the Perl 5 attribute mechanism. From attributes.pm: Each attribute specification is a simple name, optionally followed by a parenthesised parameter list. If such a parameter list is present, it is scanned past as for the rules for the `q()' operator. (See the section on "Quote and Quote-like Operators" in the perlop manpage.) The parameter list is passed as it was found, however, and not as per `q()'.	[reply]

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Re: Re (tilly) 3: autotie in Attribute Handlers
by TheDamian (Vicar) on Nov 04, 2001 at 05:12 UTC

Any human looking at this would say that the first closing paren is inside of a quoted string, and so this code is correct.

Not a bug in Attribute::Handlers, but an inherent behaviour of the Perl 5 attribute mechanism. From attributes.pm:

Each attribute specification is a simple name, optionally followed by a parenthesised parameter list. If such a parameter list is present, it is scanned past as for the rules for the `q()' operator. (See the section on "Quote and Quote-like Operators" in the perlop manpage.) The parameter list is passed as it was found, however, and not as per `q()'.

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