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Re: nested level section closing

by Samy_rio (Vicar)
on Mar 14, 2007 at 11:50 UTC ( #604786=note: print w/replies, xml ) Need Help??

in reply to nested level section closing

Hi Anonymous Monk, try like this using Regular Expression,

use strict; use warnings; my $input = do{local $/; <DATA>}; $input =~ s/(<(h\d+>)[^\n]+)/$1<\/$2/gsi; $input =~ s/(<h(\d+)[^>]*>)(.*?)(?=(<h(\d+)[^>]*>))/"$1".&section_clos +e($2,$3,$5)/egsi; $input =~ s/(<(h\d+>)){2,}/$1/gsi; ######Last level if ($input =~/<h./si) { if ($input =~/(<h\d+[^>]*>)(.*)(<h(\d+)[^>]*>)(.*)$/si) { $input =~s/(<h\d+[^>]*>)(.*)(<h(\d+)[^>]*>)(.*)$/"$1$2$3".&sec +tion_close($4,$5,1)/egsi; } else { $input =~s/(.*)(<h(\d+)[^>]*>)(.*)$/"$1$2".&section_close($3,$ +4,1)/egsi; } } ############Heading replacement $input =~ s/(<h(\d+)>)((?:(?!<\/h\2>).)*)<\/h\2>/$1<head>$3<\/head>/gs +i; $input =~ s/(<\/?)h(\d+>)/$1section$2/gsi; print $input; sub section_close { my ($csect_no,$aft_txt,$asect_no)=@_; my $tag_close; if ($csect_no == $asect_no) { $tag_close="$aft_txt<\/h$csect_no>\n" } if ($csect_no < $asect_no) { my $j = $asect_no - $csect_no; my $i = $csect_no; my $temp = ""; while ($j > 1) { my $k = $i + 1; $temp = $temp."<h$k>\n"; $i++; $j--; } $tag_close = "<h$csect_no>".$aft_txt.$temp; } if ($csect_no > $asect_no) #head separation { my $temp = ""; my $i = $asect_no; for ($i = $asect_no; $i <= $csect_no; $i++) { $temp = "<\/h$i>\n".$temp; } $tag_close = $aft_txt.$temp; } return $tag_close; } __DATA__ <h1>Heading level 1 <h2>Heading level 2 <h3>Heading level 3 <h2>Heading level 2 <h1>Heading level 1 paragraph here paragraph here Output: ------- <section1><head>Heading level 1</head> <section2><head>Heading level 2</head> <section3><head>Heading level 3</head> </section3> </section2> <section2><head>Heading level 2</head> </section2> </section1> <section1><head>Heading level 1</head> paragraph here paragraph here </section1>

Velusamy R.

eval"print uc\"\\c$_\""for split'','j)@,/6%@0%2,`e@3!-9v2)/@|6%,53!-9@2~j';

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