From 37b1eefaa8690036f7e07615a62556746c4e91f4 Mon Sep 17 00:00:00 2001
From: Victor Wagner <wagner@atlas-card.ru>
Date: Tue, 12 Nov 2013 18:15:22 +0400
Subject: [PATCH] added Tex2fb2 script

---
 Tex2fb2 | 132 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 132 insertions(+)
 create mode 100644 Tex2fb2

diff --git a/Tex2fb2 b/Tex2fb2
new file mode 100644
index 0000000..2fe0580
--- /dev/null
+++ b/Tex2fb2
@@ -0,0 +1,132 @@
+#!/usr/bin/perl
+# char-level modes
+my $poetry = 0;
+my $verbatim = 0;
+my @sections;
+my $buffer;
+#
+# TODO italic paragaphs
+# footnotes
+# epigraphs
+#
+# print fictionbook header
+print "<?xml version=\"1.0\" encoding=\"UTF-8\">\n";
+print "<FictionBook xmlns=\"http://www.gribuser.ru/xml/fictionbook/2.0\"
+xmlns:l=\"http://www.w3.org/1999/xlink\">\n";
+my $metadata = shift @ARGV;
+open F,"<",$metadata;
+while (<F>) {
+	print $_;
+}
+close F;
+
+my $header =1;
+while (<>) {
+$environ = undef;
+if (/\\(begin|end){(\w+)}/) {
+	$environ = $2;
+	$begin=$1 eq "begin";
+	if ($environ eq 'verbatim') {
+		$verbatim=$begin;
+	} elsif ($environ eq 'verse') {
+		if ($begin) {
+		pushsection("poem",undef);
+		} else {
+		flushsection('poem');
+		}
+		$poetry = $begin;
+	} elsif($environ = 'document' && $begin) {
+		$header=0;
+	}
+}
+next LINE if $header;
+if (/^$/ && $environ && $buffer) {
+#output on empty line (p or stanza) depending on poetry mode
+	add_to_section(tag($buffer,$poetry?"stanza":"p"));
+	$buffer="";
+}
+next LINE if $environ;
+# Section headings
+if (/\\(part|chapter|section|subsection|subsubsection){(.*)}/) {
+	pushsection($1,$2);
+}
+#normal mode: 
+if (!$verbatim) {
+#strip TeX comments 
+s/([^\\])%.*$/$1/;
+#replace TeX ligatures ~ --- << >> \% with appropriate unicode symbols
+s/~/\xA0/g;
+s/---/-/g;
+s/<</«/g;
+s/>>/»/g;
+}
+#replace ' and " with entities
+s/&/&amp;/g;
+s/'/&apos;/g;
+s/"/&quot;/g;
+s/</&lt;/g;
+s/>/&gt;/g;
+
+if ($poetry) {
+	chomp;
+  $buffer.=tag($_,'v');
+} elsif ($verbatim) {
+	add_to_section(tag(tag($_,"code"),"p"));
+} else {
+  $buffer.=$_;
+}
+}
+if ($buffer) {
+	add_to_section(tag($buffer,"p"));
+}
+
+while (@sections) {
+	flushsection();
+}
+print "</body>\n";
+## FIXME print footnotes
+print "</FictionBook>";
+
+sub add_to_section {
+	my $data = shift;
+	return if ($#sections<0) ;
+	$sections[$#sections]->{data}.=$data;
+}
+
+sub flushsection {
+	my $tag= shift || 'section';
+	my $str = pop @sections;
+	my $content="";
+	if ($str->{title}) {
+		$content = tag($str->{title},"title");
+	}
+	$content .=  $str->{data};
+	if ($#sections >=0) {
+		add_to_section(tag($content,$tag));
+	} else {
+		print tag($content,$tag);
+	}
+}
+
+sub pushsection {
+	my ($level,$title)=@_;
+	# Find section of $level in the current stack
+	my $found=scalar(@sections);
+	LEVEL:
+	for (my $i=0;$i<=$#sections;$i++) {
+		if ($sections[$i]->{level} eq $level) {
+			$found=$i;
+			last LEVEL;
+		}
+	}
+	# if found, flush everything below
+	while (scalar(@sections) > $found) {
+		flushsection;
+	}
+	push @sections,{level=>$level,title=>$title,data=>""};
+}
+
+sub tag {
+	my ($content,$name) = @_;
+	return "<$name>$content</$name>";
+}
-- 
2.39.2