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Re: How to use Substr to bulk substitutions?

by holli (Abbot)
on May 16, 2019 at 21:08 UTC ( [id://11100126]=note: print w/replies, xml ) Need Help??


in reply to How to use Substr to bulk substitutions?

If this is related to Better way of finding HTML tags positions in HTML string, I am really curious what problem you are trying to solve here.


holli

You can lead your users to water, but alas, you cannot drown them.

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Re^2: How to use Substr to bulk substitutions?
by phoenix007 (Sexton) on May 17, 2019 at 04:39 UTC

    Yes it is related to that. I am trying to find out perticular tags in html for example a tags to skip them in my processing of making all url clickable. Simple I am trying to replace all urls with a href so that they become clickable. For that I am trying to skip a tags and all others with url will have a href inserted

      Simple I am trying to replace all urls with a href
      You mean, urls in text nodes? Someting like this?
      use Modern::Perl; use HTML::Parser; use Regexp::Common qw( URI ); my $parser = HTML::Parser->new ( default_h => [sub { my $something = shift; print $something }, 'text'], text_h => [sub { my $text = shift; # Guess a bit and add a scheme to www # This might be bit too aggressive $text =~ s^ www\.^ http://www.^gi; # Replace URLs in the text by links $text =~ s^($RE{URI})^<a href="$1">$1</a>^g; print $text; }, 'text'], ); $parser->parse( join "", <DATA>) || die $!; __DATA__ <!DOCTYPE html> <html> <head><title>Test data </title></head> <body> Some URL without scheme www.perlmonks.org and a plain URL with scheme http://perl.org and even ftp ftp://ftpserver.foo.com and an existing <a href="https://metacpan.org/">link</a> </body> </html>
      Output:
      <!DOCTYPE html> <html> <head><title>Test data </title></head> <body> Some URL without scheme <a href="www.perlmonks.org">www.perlmo +nks.org</a> and a plain URL with scheme <a href="http://perl.org">http://p +erl.org</a> and even ftp <a href="ftp://ftpserver.foo.com">ftp://ftpserver +.foo.com</a> and an existing <a href="https://metacpan.org/">link</a> </body> </html>


      holli

      You can lead your users to water, but alas, you cannot drown them.

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