Re: Why do you need to escape a string used as a paramater?

That's not an escape as in quotes, it takes a reference to $intr_html. That speeds up parameter passing by removing the need to make a copy.

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Comment on Re: Why do you need to escape a string used as a paramater?

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Re^2: Why do you need to escape a string used as a paramater? by bart (Canon) on May 24, 2005 at 08:20 UTC
That speeds up parameter passing by removing the need to make a copy. That's only part of the story. It's also, even most of all, the way HTML::TokeParser distinguishes between literal HTML in a string, and a string holding the file name of a file containing the HTML: `$p = HTML::TokeParser->new( $filename ); $p = HTML::TokeParser->new( $filehandle ); $p = HTML::TokeParser->new( \$document );` [download] Note cases 1 and 2. Choosing this convention instead of the other way around, was indeed the wisest choice with regard to efficiency.	[reply] [d/l]

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Re^2: Why do you need to escape a string used as a paramater?
by bart (Canon) on May 24, 2005 at 08:20 UTC

That speeds up parameter passing by removing the need to make a copy.

That's only part of the story. It's also, even most of all, the way HTML::TokeParser distinguishes between literal HTML in a string, and a string holding the file name of a file containing the HTML:

$p = HTML::TokeParser->new( $filename );
$p = HTML::TokeParser->new( $filehandle );
$p = HTML::TokeParser->new( \$document );
[download]

Choosing this convention instead of the other way around, was indeed the wisest choice with regard to efficiency.

[reply]
[d/l]