tor-android/external/privoxy/utils/ldp_print/fix_print_html.lib

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#
# fix_print_html.lib
#
# Dan Scott / <dan.scott (at) acm.org>
# Ferg / <gferg (at) sgi.com>
#
# Used to prepare single-file HTML variant for PDF/Postscript creation
# thru htmldoc.
#
# log:
# 16Oct2000 - 0.1 - initial entry <gferg (at) sgi.com>
# 03Apr2001 - 0.2 - fix for <preface>
# 05Jul2001 - 0.3 - fix for <tt> and -f
# 12Oct2001 - 0.4 - fix for sections; loop thru both files (body/title)
# 27Nov2001 - 0.5 - fixed bug in determining where doc-index lies
# 18Jan2002 - 0.5.1 - entity fix (822*)
# 02Apr2002 - 0.6 - misc fixes (bibliography/appendix, etc).
# 04Apr2002 - 0.7 - fix for newer DSSSL
#
sub fix_print_html {
my($in,$out,$ttl) = @_;
open(IN_FILE, "< $in") || do {
print "fix_print_html: cannot open $in: $!\n";
return 0;
};
my($buf, $ttl_buf) = '';
my($indx) = -1;
my($is_article) = 1;
while(<IN_FILE>) {
if( $indx == 1 ) {
# ignore everything until we see the chapter or sect
#
if( $_ =~ /CLASS="CHAP/i || $_ =~ /CLASS="PREF/i
||
$_ =~ /CLASS="SECT/i ) {
$buf .= $_;
$indx++;
} else {
next;
}
} elsif( $indx == 0 ) {
# write out the title page file
#
if( $_ =~ /CLASS="TOC"/ ) {
$ttl_buf .= "></DIV>\n</BODY>\n</HTML>\n";
$ttl_buf =~ s/<\/H1\n/<\/H1\n><P><BR><BR\n/ms;
$ttl_buf =~ s/<HR><\/DIV\n><HR>/<HR><\/DIV\n>/ms;
&fix_html(\$ttl_buf, 1);
open(TOC_FILE, "> $ttl") || do {
print "fix_print_html: cannot open $ttl: $!\n";
close(IN_FILE);
return 0;
};
print TOC_FILE $ttl_buf;
close(TOC_FILE);
$ttl_buf = '';
$indx++;
} else {
$ttl_buf .= $_;
}
} elsif( $indx < 0 ) {
if( $_ =~ /CLASS="BOOK"/i ) {
$is_article = 0;
}
# up to this point, both buffers get the line
#
if( $_ =~ /CLASS="TITLEPAGE"/ ) {
$ttl_buf .= $_ . ">\n<P>\n<BR><BR><BR><BR>\n<\/P\n";
$indx++;
} else {
$buf .= $_;
$ttl_buf .= $_;
}
} else {
$buf .= $_;
}
}
close(IN_FILE);
# fix body file
#
open(OUT_FILE, "> $out") || do {
print "fix_print_html: cannot open $out: $!\n";
return 0;
};
&fix_html(\$buf, $is_article);
print OUT_FILE $buf;
close(OUT_FILE);
return 1;
}
sub fix_html {
my($buf, $is_article) = @_;
my($indx) = -1;
# make corrections and write out the file
#
$$buf =~ s/(\n><LI\n)><P\n(.*?)<\/P\n>/$1$2\n/gms;
$$buf =~ s/(\n><LI\n><DIV\nCLASS="FORMALPARA"\n)><P\n(.*?)<\/P\n>/$1$2\n/gms;
$$buf =~ s/(\n><LI\nSTYLE="[^\"]+"\n)><P\n(.*?)<\/P\n>/$1$2\n/gms;
if( $is_article == 0 ) {
$$buf =~
s/(\nCLASS="SECT[TION\d]+"\n>)<H1\n(.*?)<\/H1/$1<H0\n$2<\/H0/gims;
$$buf =~
s/(\nCLASS="SECT[TION\d]+"\n><HR>)<H1\n(.*?)<\/H1/$1<H0\n$2<\/H0/gims;
}
$$buf =~ s/<H1(\nCLASS="INDEXDIV"\n)(.*?)<\/H1/<H2$1$2<\/H2/gims;
if( ($indx = rindex($$buf, "<H1\n><A\nNAME=\"DOC-INDEX\"")) > -1 ) {
$$buf = substr($$buf, 0, $indx);
$$buf .= "\n<\/BODY>\n<\/HTML>\n\n";
} elsif( ($indx = rindex($$buf, "<H1\n><A\nNAME=\"doc-index\"")) > -1 ) {
$$buf = substr($$buf, 0, $indx);
$$buf .= "\n<\/BODY>\n<\/HTML>\n\n";
}
$$buf =~ s/\&\#13;//g;
$$buf =~ s/\&\#60;/\&lt;/g;
$$buf =~ s/\&\#62;/\&gt;/g;
$$buf =~ s/\&\#8211;/\-/g;
$$buf =~ s/\&\#8220;/\"/g;
$$buf =~ s/\&\#8221;/\"/g;
$$buf =~ s/WIDTH=\"\d\"//g;
$$buf =~ s/><[\/]*TBODY//g;
$$buf =~ s/><[\/]*THEAD//g;
$$buf =~ s/TYPE=\"1\"\n//gim;
$$buf =~ s/<P\nCLASS="LITERALLAYOUT"(.*?)<\/P/<P CLASS="LITERALLAYOUT"><FONT FACE=\"courier\"$1<\/FONT><\/P/gms;
my($cnt, $j) = 0;
if( $$buf !~ /<H1/ ) {
# for newer docbook styles, set h2 to h1, etc.
#
for($cnt=2; $cnt < 7; $cnt++ ) {
$j = $cnt - 1;
$$buf =~ s/<H${cnt}/<H${j}/g;
$$buf =~ s/<\/H${cnt}/<\/H${j}/g;
}
} elsif( $is_article == 0 ) {
# decrement the headers by 1 and then re-set the
# chapter level only to H1...
#
for($cnt=5; $cnt >= 0; $cnt--) {
$j = $cnt + 1;
if( $cnt == 0 ) {
$j = 2;
}
$$buf =~ s/<H${cnt}/<H${j}/g;
$$buf =~ s/<\/H${cnt}/<\/H${j}/g;
}
my(@l) = split(/\n/, $$buf);
for( $cnt=0; $cnt < (@l + 0); $cnt++ ) {
if( $j == 1 ) {
if( $l[$cnt] =~ /<DIV/ ) {
$j = 0;
next;
}
$l[$cnt] =~ s/<H2/<H1/g;
$l[$cnt] =~ s/<\/H2/<\/H1/g;
}
if( $l[$cnt] =~ /^CLASS=\"CHAP/i
||
$l[$cnt] =~ /^NAME=\"BIBL/i
||
$l[$cnt] =~ /^CLASS=\"APPENDIX/i
||
$l[$cnt] =~ /^CLASS=\"GLOSSARY/i
||
$l[$cnt] =~ /^CLASS=\"PREF/i ) {
$j = 1;
}
}
$$buf = join("\n", @l);
}
$$buf =~ s/><DIV\nCLASS="\w+"\n//gms;
$$buf =~ s/><\/DIV\n//gms;
$buf =~ s/<SPAN\n[^>]*?>//gms;
$buf =~ s/<\/SPAN\n>//gms;
$$buf =~ s/(><LI\n)><P\n(.*?)<\/P\n>(<\/LI\n)/$1$2$3/gms;
return;
}
# Return true from package include
#
1;