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sub filter { |
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my $contents = shift || return; |
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|
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# my $verbose = 1; |
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|
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# if you don't want content to be indexed, include it in |
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# <noindex> foobar </noindex> tags or surround it with comments |
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# <!-- noindex --> foobar <!-- /noindex --> |
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# <!-- noindex --> foobar <!-- index --> (also supported by swish) |
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$contents =~ s,<noindex>.+?</noindex>,,isg; |
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$contents =~ s,<!--\s*noindex\s*-->.+?<!--\s*/noindex\s*-->,,isg; |
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$contents =~ s,<!--\s*noindex\s*-->.+?<!--\s*index\s*-->,,isg; |
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# this will remove all script from indexing content |
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$contents =~ s,<script[^>]*>.+?</script>,,isg; |
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# remap Windows charset to ISO-8859-2 |
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$contents =~ tr/ðèæÐÈÆ/¹ð¾èæ©Ð®ÈÆ/; # 1250 -> iso8859-2 |
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# this will fix badly formatted html in form: |
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# <head><title>some text</title |
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# ></head> |
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# which will confuse indexer (or libxml2?) |
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$contents =~ s/[\n\r]^(>)/$1\n/msg; |
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# remove comments between <html> and <head> texi2html inserts them |
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# there and swish can't find document title then (libxml or swish bug?) |
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while ($contents =~ s/(<html>.*)<!--.*?-->(.*<head>)/$1$2/msi) { }; |
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|
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# remote TPJ left column |
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if ($contents =~ s,<!-- BEGIN LEFT SIDE BAR CELL -->.+?<!-- END LEFT SIDE BAR CELL -->,,isg) { |
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my $title; |
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# extract title and add to title |
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if ($contents =~ m,<!-- the article goes here -->\s*<h2[^>]*>(.+?)</h2>,si) { |
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$title = $1; |
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} elsif ($contents =~ m,<h1[^>]*>(.+?)</h1>,is) { |
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$title = $1; |
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} elsif ($contents =~ m,<h2[^>]*>(.+?)</h2>,is) { |
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$title = $1; |
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} else { |
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$title = "no detail title"; |
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} |
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$contents =~ s,(<title>)([^<]+)(</title>),$1$2: $title$3,gsi if ($title); |
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|
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} |
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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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|
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# construct new title (from various parts of DocBook if available) |
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my $new_title; |
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|
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if ($contents =~ m,<!--SafTocEntry="([^"]+)"-->,is) { |
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$new_title = $1; |
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} elsif ($contents =~ m,<h\d\sclass="docPartTitle"[^>]*>([^<]+)</h\d>,is) { |
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$new_title = $1; |
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} elsif ($contents =~ m,<h\d\sclass="docChapterTitle"[^>]*>([^<]+)</h\d>,is) { |
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$new_title = $1; |
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} elsif ($contents =~ m,<h\d\sclass="docSection1Title"[^>]*>([^<]+)</h\d>,is) { |
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$new_title = $1; |
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} else { |
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if ($contents =~ m,<title>([^<]+)</title>,is) { |
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$new_title = $1; |
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} elsif ($contents =~ m,<h\d[^>]*>([^<]+)</h\d>,is) { |
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$new_title = $1; |
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} |
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} |
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|
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if ($new_title) { |
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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 = $collection; |
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} else { |
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$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 = $collection; |
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} |
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|
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$new_title =~ s/\s\s+/ /g; |
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|
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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 ($verbose); |
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} elsif ( |
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# try to insert after <head>, <html> or at top |
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$contents =~ s,(<head>),$1<title>$new_title</title>,is || |
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$contents =~ s,(<html>),$1<title>$new_title</title>,is || |
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$contents =~ s,^,<title>$new_title</title>, ) { |
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print STDERR "adding new title '$new_title'\n" if ($verbose); |
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} |
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|
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return $contents; |
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} |
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|
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1; |
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