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sub filter { |
sub filter { |
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my $contents = shift || return; |
my $contents = shift || return; |
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my $verbose = 0; |
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# if you don't want content to be indexed, include it in |
# if you don't want content to be indexed, include it in |
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# <noindex> foobar </noindex> tags or surround it with comments |
# <noindex> foobar </noindex> tags or surround it with comments |
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# <!-- noindex --> foobar <!-- /noindex --> |
# <!-- noindex --> foobar <!-- /noindex --> |
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# remove comments between <html> and <head> texi2html inserts them |
# remove comments between <html> and <head> texi2html inserts them |
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# there and swish can't find document title then (libxml or swish bug?) |
# there and swish can't find document title then (libxml or swish bug?) |
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while ($contents =~ s/(<html>.*)<!--.*?-->(.*<head>)/$1$2/msi) { }; |
while ($contents =~ s/(<html>.*)<!--.*?-->(.*<head>)/$1$2/msi) { }; |
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# remove empty lines before/after <html> |
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$contents =~ s/^\s+(<html>)/$1/is; |
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$contents =~ s/(<\/html>)\s+$/$1/is; |
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# remove cr |
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$contents =~ s/\r//gs; |
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# remove SQL Magazine header and footer |
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$contents =~ s/<!-- begin topnav area -->.+?<!-- end topnav area -->/<\/table>/is; |
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$contents =~ s/<!--Begin Footer-->.+?<\/table>/<\/table>/is; |
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# remote TPJ left column |
# remote TPJ left column |
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if ($contents =~ s,<!-- BEGIN LEFT SIDE BAR CELL -->.+?<!-- END LEFT SIDE BAR CELL -->,,isg) { |
if ($contents =~ s,<!-- BEGIN LEFT SIDE BAR CELL -->.+?<!-- END LEFT SIDE BAR CELL -->,,isg) { |
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} |
} |
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# is second argument collection? |
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my $collection = shift || return $contents; |
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# construct new title (from various parts of DocBook if available) |
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my $new_title; |
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if ($contents =~ m,<!--SafTocEntry="([^"]+)"-->,is) { |
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$new_title = $1; |
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print STDERR "using title '$new_title' from <!--SafTocEntry-->\n" if ($verbose); |
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} elsif ($contents =~ m,<(h\d)\s+class="docPartTitle"[^>]*>(.+?)</\1>,is) { |
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$new_title = $2; |
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print STDERR "using title '$new_title' from docPartTitle\n" if ($verbose); |
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} elsif ($contents =~ m,<(h\d)\s+class="docChapterTitle"[^>]*>(.+?)</\1>,is) { |
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$new_title = $2; |
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print STDERR "using title '$new_title' from docChapterTitle\n" if ($verbose); |
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} elsif ($contents =~ m,<(h\d)\s+class="docSection1Title"[^>]*>(.+?)</\1>,is) { |
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$new_title = $2; |
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print STDERR "using title '$new_title' from docSection1Title\n" if ($verbose); |
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} elsif ($contents =~ m,<(h\d)\s+class="doc[^"]*Title"[^>]*>(.+?)</\1>,is) { |
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$new_title = $2; |
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print STDERR "using title '$new_title' from doc.+Title\n" if ($verbose); |
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} elsif ($contents =~ m,<(h\d)\s+class="chapter"[^>]*>(.+?)</\1>,is) { |
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$new_title = $2; |
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print STDERR "using title '$new_title' from chapter\n" if ($verbose); |
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} elsif ($contents =~ m,<(h\d)\s+class="sect1"[^>]*>(.+?)</\1>,is) { |
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$new_title = $2; |
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print STDERR "using title '$new_title' from sect1\n" if ($verbose); |
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} else { |
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if ($contents =~ m,<title>([^<]+)</title>,is) { |
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$new_title = $1; |
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print STDERR "using title '$new_title' from <title>\n" if ($verbose); |
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} elsif ($contents =~ m,<h\d[^>]*>([^<]+)</h\d>,is) { |
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$new_title = $1; |
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print STDERR "using title '$new_title' from <h_>\n" if ($verbose); |
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} |
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} |
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if ($new_title) { |
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# nuke html in title |
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$new_title =~ s/<br>\s+/: /gs; |
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$new_title =~ s/<\/*[^>]+>//gs; |
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# check if new title is same as collection name |
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my ($a,$b) = ($new_title,$collection); |
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$a =~ s/([^a-zA-Z])+/ /gs; |
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$b =~ s/([^a-zA-Z])+/ /gs; |
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if ($a =~ m/$b/i) { |
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$new_title = $collection; |
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print STDERR "new_title and collection are same! [$new_title]\n" if ($verbose); |
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} else { |
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$new_title = "$collection :: $new_title"; |
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} |
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} else { |
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# fall-back to collection title |
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$new_title = $collection; |
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} |
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$new_title =~ s/\s\s+/ /g; |
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if ($contents =~ s,<title>(.*)</title>,<title>$new_title</title>,is) { |
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print STDERR "replace title '$1' with '$new_title'\n" if ($verbose); |
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} elsif ($contents =~ s,(<head>),$1<title>$new_title</title>,is) { |
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print STDERR "adding title '$new_title' after <head>\n" if ($verbose); |
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} elsif ($contents =~ s,(<html>),$1<head><title>$new_title</title></head>,is) { |
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print STDERR "adding title '$new_title' after <html>\n" if ($verbose); |
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} elsif ($contents =~ s,^,<title>$new_title</title>,) { |
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print STDERR "adding new title '$new_title'\n" if ($verbose); |
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} else { |
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print STDERR "WARNING: filter couldn't add new title '$new_title' anywhere!"; |
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} |
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return $contents; |
return $contents; |
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} |
} |
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