From 248b307696e0445966f0d8429b69b0d2f785d406 Mon Sep 17 00:00:00 2001
From: Slava Monich <slava.monich@jolla.com>
Date: Tue, 7 Jul 2015 18:30:51 +0300
Subject: [PATCH] Major refactoring of CSS support

Also, improved support for line breaks.
---
 .../fbreader/src/bookmodel/BookReader.cpp     |   6 +
 .../fbreader/src/bookmodel/BookReader.h       |   1 +
 .../src/formats/css/StyleSheetParser.cpp      | 117 ++++---
 .../src/formats/css/StyleSheetParser.h        |  12 +-
 .../src/formats/css/StyleSheetTable.cpp       | 313 +++++++++++-------
 .../src/formats/css/StyleSheetTable.h         | 145 ++++++--
 .../src/formats/xhtml/XHTMLReader.cpp         | 229 +++++--------
 .../fbreader/src/formats/xhtml/XHTMLReader.h  |  15 +-
 .../zlibrary/core/src/util/ZLStringUtil.cpp   |  19 +-
 .../zlibrary/core/src/util/ZLStringUtil.h     |   5 +
 .../text/src/area/ZLTextAreaStyle.cpp         |   2 +
 .../src/area/ZLTextArea_prepareTextLine.cpp   |  12 +-
 .../src/area/ZLTextArea_processTextLine.cpp   |   9 +-
 .../zlibrary/text/src/area/ZLTextElement.h    |   1 +
 .../text/src/area/ZLTextParagraphBuilder.cpp  |   3 +
 .../text/src/area/ZLTextParagraphCursor.cpp   |   3 +
 .../text/src/area/ZLTextParagraphCursor.h     |   1 +
 .../zlibrary/text/src/model/ZLTextModel.cpp   |  40 ++-
 .../zlibrary/text/src/model/ZLTextModel.h     |   1 +
 .../text/src/model/ZLTextParagraph.cpp        |  54 ++-
 .../zlibrary/text/src/model/ZLTextParagraph.h |  29 +-
 21 files changed, 649 insertions(+), 368 deletions(-)

diff --git a/fbreader/fbreader/fbreader/src/bookmodel/BookReader.cpp b/fbreader/fbreader/fbreader/src/bookmodel/BookReader.cpp
index aeee7b5..937a134 100644
--- a/fbreader/fbreader/fbreader/src/bookmodel/BookReader.cpp
+++ b/fbreader/fbreader/fbreader/src/bookmodel/BookReader.cpp
@@ -109,6 +109,12 @@ void BookReader::addFixedHSpace(unsigned char length) {
 	}
 }
 
+void BookReader::addLineBreak() {
+	if (myTextParagraphExists) {
+		myCurrentTextModel->addLineBreak();
+	}
+}
+
 void BookReader::addControl(const ZLTextStyleEntry &entry) {
 	if (myTextParagraphExists) {
 		flushTextBufferToParagraph();
diff --git a/fbreader/fbreader/fbreader/src/bookmodel/BookReader.h b/fbreader/fbreader/fbreader/src/bookmodel/BookReader.h
index bdd42e1..35cc941 100644
--- a/fbreader/fbreader/fbreader/src/bookmodel/BookReader.h
+++ b/fbreader/fbreader/fbreader/src/bookmodel/BookReader.h
@@ -58,6 +58,7 @@ public:
 	void addHyperlinkLabel(const std::string &label);
 	void addHyperlinkLabel(const std::string &label, int paragraphNumber);
 	void addFixedHSpace(unsigned char length);
+	void addLineBreak();
 
 	void addImageReference(const std::string &id, short vOffset = 0);
 	void addImage(const std::string &id, shared_ptr<const ZLImage> image);
diff --git a/fbreader/fbreader/fbreader/src/formats/css/StyleSheetParser.cpp b/fbreader/fbreader/fbreader/src/formats/css/StyleSheetParser.cpp
index 2c01f49..70d9feb 100644
--- a/fbreader/fbreader/fbreader/src/formats/css/StyleSheetParser.cpp
+++ b/fbreader/fbreader/fbreader/src/formats/css/StyleSheetParser.cpp
@@ -28,26 +28,22 @@
 StyleSheetTableParser::StyleSheetTableParser(StyleSheetTable &table) : myTable(table) {
 }
 
-void StyleSheetTableParser::storeData(const std::string &tagName, const std::string &className, const StyleSheetTable::AttributeMap &map) {
-	myTable.addMap(tagName, className, map);
+void StyleSheetTableParser::storeData(const std::string &selector, const StyleSheetTable::AttributeMap &map) {
+	myTable.addMap(ZLStringUtil::splitString(selector, " \t+"), map);
 }
 
-shared_ptr<ZLTextStyleEntry> StyleSheetSingleStyleParser::parseString(const char *text, ZLBoolean3 *pageBreakBefore, ZLBoolean3 *pageBreakAfter) {
-	myReadState = ATTRIBUTE_NAME;
-	parse(text, strlen(text), true);
-	shared_ptr<ZLTextStyleEntry> control = StyleSheetTable::createControl(NULL, myMap);
-	bool value;
-	if (pageBreakBefore && StyleSheetTable::getPageBreakBefore(myMap, value)) {
-		*pageBreakBefore = value ? B3_TRUE : B3_FALSE;
+StyleSheetTable::Style StyleSheetSingleStyleParser::parseString(const char *text) {
+	StyleSheetTable::Style style;
+	if (text) {
+		myReadState = ATTRIBUTE_NAME;
+		parse(text, strlen(text), true);
+		StyleSheetTable::updateStyle(style, myMap);
+		reset();
 	}
-	if (pageBreakAfter && StyleSheetTable::getPageBreakAfter(myMap, value)) {
-		*pageBreakAfter = value ? B3_TRUE : B3_FALSE;
-	}
-	reset();
-	return control;
+	return style;
 }
 
-StyleSheetParser::StyleSheetParser() : myReadState(TAG_NAME), myInsideComment(false) {
+StyleSheetParser::StyleSheetParser() : myReadState(TAG_NAME), myInsideComment(false), myAtBlockDepth(0) {
 }
 
 StyleSheetParser::~StyleSheetParser() {
@@ -58,6 +54,7 @@ void StyleSheetParser::reset() {
 	myAttributeName.erase();
 	myReadState = TAG_NAME;
 	myInsideComment = false;
+	myAtBlockDepth = 0;
 	mySelectors.clear();
 	myMap.clear();
 }
@@ -81,7 +78,8 @@ void StyleSheetParser::parse(const char *text, int len, bool final) {
 	const char *start = text;
 	const char *end = text + len;
 	for (const char *ptr = start; ptr != end; ++ptr) {
-		if (isspace(*ptr)) {
+		if ((myReadState != TAG_NAME && isspace(*ptr)) ||
+		    (myReadState == TAG_NAME && *ptr == ',')) {
 			if (start != ptr) {
 				myWord.append(start, ptr - start);
 			}
@@ -121,40 +119,78 @@ bool StyleSheetParser::isControlSymbol(const char symbol) {
 	}
 }
 
-void StyleSheetParser::storeData(const std::string&, const std::string&, const StyleSheetTable::AttributeMap&) {
+void StyleSheetParser::storeData(const std::string&, const StyleSheetTable::AttributeMap&) {
 }
 
 void StyleSheetParser::processControl(const char control) {
 	switch (control) {
 		case '{':
-			myReadState = (myReadState == TAG_NAME) ? ATTRIBUTE_NAME : BROKEN;
+			switch (myReadState) {
+				case AT_RULE:
+					myReadState = AT_BLOCK;
+					myAtBlockDepth = 1;
+					break;
+				case AT_BLOCK:
+					myAtBlockDepth++;
+					break;
+				case TAG_NAME:
+					myReadState = ATTRIBUTE_NAME;
+					myMap.clear();
+					break;
+				default:
+					myReadState = BROKEN;
+					break;
+			}
 			break;
 		case '}':
-			if (myReadState != BROKEN) {
-				for (unsigned int i=0; i<mySelectors.size(); i++) {
-					std::string selector(mySelectors[i]);
-					std::string tag, klass;
-					const int index = selector.find('.');
-					if (index == -1) {
-						tag = selector;
-					} else {
-						tag = selector.substr(0, index);
-						klass = selector.substr(index + 1);
+			switch (myReadState) {
+				case AT_BLOCK:
+					if (--myAtBlockDepth > 0) {
+						return;
 					}
-					storeData(tag, klass, myMap);
-				}
+					break;
+				case AT_RULE:
+				case BROKEN:
+					break;
+				default:
+					for (unsigned int i=0; i<mySelectors.size(); i++) {
+						storeData(mySelectors[i], myMap);
+					}
+					break;
 			}
 			myReadState = TAG_NAME;
 			mySelectors.clear();
 			myMap.clear();
 			break;
 		case ';':
-			myReadState =
-				((myReadState == ATTRIBUTE_VALUE) ||
-				 (myReadState == ATTRIBUTE_NAME)) ? ATTRIBUTE_NAME : BROKEN;
+			switch (myReadState) {
+				case AT_RULE:
+					myReadState = TAG_NAME;
+					mySelectors.clear();
+					myMap.clear();
+					break;
+				case AT_BLOCK:
+					break;
+				case ATTRIBUTE_VALUE:
+				case ATTRIBUTE_NAME:
+					myReadState = ATTRIBUTE_NAME;
+					break;
+				default:
+					myReadState = BROKEN;
+					break;
+			}
 			break;
 		case ':':
-			myReadState = (myReadState == ATTRIBUTE_NAME) ? ATTRIBUTE_VALUE : BROKEN;
+			switch (myReadState) {
+				case AT_BLOCK:
+					break;
+				case ATTRIBUTE_NAME:
+					myReadState = ATTRIBUTE_VALUE;
+					break;
+				default:
+					myReadState = BROKEN;
+					break;
+			}
 			break;
 	}
 }
@@ -177,18 +213,21 @@ void StyleSheetParser::processWord(std::string &word) {
 	}
 }
 	
-void StyleSheetParser::processWordWithoutComments(const std::string &word) {	
+void StyleSheetParser::processWordWithoutComments(std::string word) {
 	switch (myReadState) {
+		case AT_RULE:
+		case AT_BLOCK:
+			break;
 		case TAG_NAME:
+			ZLStringUtil::stripWhiteSpaces(word);
 			if (!word.empty()) {
-				const unsigned int len = word.length();
-				if (word.at(len-1) == ',') {
-					mySelectors.push_back(word.substr(0, len-1));
+				if (word[0] == '@') {
+					myReadState = AT_RULE;
+
 				} else {
 					mySelectors.push_back(word);
 				}
 			}
-			myMap.clear();
 			break;
 		case ATTRIBUTE_NAME:
 			myAttributeName = word;
diff --git a/fbreader/fbreader/fbreader/src/formats/css/StyleSheetParser.h b/fbreader/fbreader/fbreader/src/formats/css/StyleSheetParser.h
index d17db79..d56bc08 100644
--- a/fbreader/fbreader/fbreader/src/formats/css/StyleSheetParser.h
+++ b/fbreader/fbreader/fbreader/src/formats/css/StyleSheetParser.h
@@ -21,7 +21,6 @@
 #define __STYLESHEETPARSER_H__
 
 #include "StyleSheetTable.h"
-#include "ZLBoolean3.h"
 
 class ZLInputStream;
 
@@ -37,24 +36,27 @@ public:
 	void parse(const char *text, int len, bool final = false);
 
 protected:
-	virtual void storeData(const std::string &tagName, const std::string &className, const StyleSheetTable::AttributeMap &map);
+	virtual void storeData(const std::string &selector, const StyleSheetTable::AttributeMap &map);
 
 private:
 	bool isControlSymbol(const char symbol);
 	void processWord(std::string &word);
-	void processWordWithoutComments(const std::string &word);
+	void processWordWithoutComments(std::string word);
 	void processControl(const char control);
 
 private:
 	std::string myWord;
 	std::string myAttributeName;
 	enum {
+		AT_RULE,
+		AT_BLOCK,
 		TAG_NAME,
 		ATTRIBUTE_NAME,
 		ATTRIBUTE_VALUE,
 		BROKEN,
 	} myReadState;
 	bool myInsideComment;
+	int myAtBlockDepth;
 	std::vector<std::string> mySelectors;
 	StyleSheetTable::AttributeMap myMap;
 
@@ -67,7 +69,7 @@ public:
 	StyleSheetTableParser(StyleSheetTable &table);
 
 private:
-	void storeData(const std::string &tagName, const std::string &className, const StyleSheetTable::AttributeMap &map);
+	void storeData(const std::string &selector, const StyleSheetTable::AttributeMap &map);
 
 private:
 	StyleSheetTable &myTable;
@@ -76,7 +78,7 @@ private:
 class StyleSheetSingleStyleParser : public StyleSheetParser {
 
 public:
-	shared_ptr<ZLTextStyleEntry> parseString(const char *text, ZLBoolean3* pageBreakBefore, ZLBoolean3* pageBreakAfter);
+	StyleSheetTable::Style parseString(const char *text);
 };
 
 #endif /* __STYLESHEETPARSER_H__ */
diff --git a/fbreader/fbreader/fbreader/src/formats/css/StyleSheetTable.cpp b/fbreader/fbreader/fbreader/src/formats/css/StyleSheetTable.cpp
index c426a0c..ded215c 100644
--- a/fbreader/fbreader/fbreader/src/formats/css/StyleSheetTable.cpp
+++ b/fbreader/fbreader/fbreader/src/formats/css/StyleSheetTable.cpp
@@ -18,32 +18,99 @@
  */
 
 #include <cstdlib>
+#include <algorithm>
 
 #include <ZLStringUtil.h>
 
 #include "StyleSheetTable.h"
 
-bool StyleSheetTable::isEmpty() const {
-	return myControlMap.empty() && myPageBreakBeforeMap.empty() && myPageBreakAfterMap.empty();
+static const std::string WILDCARD("*");
+
+StyleSheetTable::Element::Element(const std::string &tag, const char *klass, const char* id) :
+	Name(tag), Classes(ZLStringUtil::splitString(klass, ", \n")) {
+	if (id) Id = id;
 }
 
-void StyleSheetTable::addMap(const std::string &tag, const std::string &aClass, const AttributeMap &map) {
-	if ((!tag.empty() || !aClass.empty()) && !map.empty()) {
-		Key key(tag, aClass);
-		// This will update the existing element if it already exists
-		// or create a new one if it wasn't there yet
-		myControlMap[key] = createControl(myControlMap[key], map);
-		bool value;
-		if (getPageBreakBefore(map, value)) {
-			myPageBreakBeforeMap[key] = value;
-		}
-		if (getPageBreakAfter(map, value)) {
-			myPageBreakAfterMap[key] = value;
-		}
+StyleSheetTable::Selector::Selector(const std::string &selector) {
+	std::string buf(selector);
+	const int dot = buf.find('.');
+	if (dot >= 0) {
+		myClass = buf.substr(dot + 1);
+		buf = buf.substr(0, dot);
+	}
+	const int hash = buf.find('#');
+	if (hash < 0) {
+		myType = buf;
+	} else {
+		myType = buf.substr(0, hash);
+		myId = buf.substr(hash + 1);
+	}
+	if (myType == "*") myType.clear();
+}
+
+bool StyleSheetTable::Selector::match(const std::string &pattern, const std::string &str) {
+	return pattern.empty() || pattern == WILDCARD || pattern == str;
+}
+
+bool StyleSheetTable::Selector::match(const std::string &pattern, const std::vector<std::string> &strings) {
+	return pattern.empty() || pattern == WILDCARD || std::find(strings.begin(), strings.end(), pattern) != strings.end();
+}
+
+void StyleSheetTable::Style::apply(const Style &other) {
+	TextStyle.apply(other.TextStyle);
+	if (other.PageBreakBefore != B3_UNDEFINED) {
+		PageBreakBefore = other.PageBreakBefore;
+	}
+	if (other.PageBreakAfter != B3_UNDEFINED) {
+		PageBreakAfter = other.PageBreakAfter;
 	}
 }
 
-static bool parseLength(const std::string &toParse, short &size, ZLTextStyleEntry::SizeUnit &unit) {
+bool StyleSheetTable::Entry::match(const ElementList &stack) const {
+	if (!stack.empty() && !Selectors.empty()) {
+		SelectorList::const_reverse_iterator it(Selectors.rbegin());
+		ElementList::const_reverse_iterator match_it(stack.rbegin());
+		if ((*it).match(*match_it)) {
+			++it;
+			++match_it;
+			while (it != Selectors.rend()) {
+				const Selector &selector = (*it);
+				while (match_it != stack.rend() && !selector.match(*match_it)) {
+					++match_it;
+				}
+				if (match_it == stack.rend()) {
+					break;
+				}
+				++it;
+			}
+			if (it == Selectors.rend()) {
+				return true;
+			}
+		}
+	}
+	return false;
+}
+
+void StyleSheetTable::addMap(const std::vector<std::string> &selectors, const AttributeMap &map) {
+	if ((!selectors.empty()) && !map.empty()) {
+		// http://www.w3.org/TR/selectors/#specificity
+		int a = 0, b = 0, c = 0;
+		SelectorList stack;
+		for (unsigned int i=0; i<selectors.size(); i++) {
+			const Selector &selector = selectors[i];
+			a += selector.a();
+			b += selector.b();
+			c += selector.c();
+			stack.push_back(selector);
+		}
+		if (a > 255) a = 255;
+		if (b > 255) b = 255;
+		if (c > 255) c = 255;
+		myEntries.push_back(Entry(stack, (a << 16) + (b << 8) + c, map));
+	}
+}
+
+bool StyleSheetTable::parseLength(const std::string &toParse, short &size, ZLTextStyleEntry::SizeUnit &unit) {
 	if (!toParse.empty()) {
 		if (ZLStringUtil::stringEndsWith(toParse, "%")) {
 			unit = ZLTextStyleEntry::SIZE_UNIT_PERCENT;
@@ -72,14 +139,28 @@ static bool parseLength(const std::string &toParse, short &size, ZLTextStyleEntr
 	return false;
 }
 
-void StyleSheetTable::setLength(ZLTextStyleEntry &entry, ZLTextStyleEntry::Length name, const AttributeMap &map, const std::string &attributeName) {
-	StyleSheetTable::AttributeMap::const_iterator it = map.find(attributeName);
-	if (it == map.end()) {
-		return;
+bool StyleSheetTable::parseMargin(const std::string &toParse, short &size, ZLTextStyleEntry::SizeUnit &unit) {
+	if (parseLength(toParse, size, unit)) {
+		// Negative margins do make sense but we don't really support them
+		if (size < 0) size = 0;
+		return true;
+	} else if (toParse == "auto") {
+		size = 0;
+		unit = ZLTextStyleEntry::SIZE_UNIT_PIXEL;
+		return true;
+	} else {
+		return false;
+	}
+}
+
+void StyleSheetTable::setLength(ZLTextStyleEntry &entry, ZLTextStyleEntry::Length name, const AttributeMap &map, const std::string &attributeName) {
+	AttributeMap::const_iterator it = map.find(attributeName);
+	if (it != map.end()) {
+		const std::vector<std::string> &values = it->second;
+		if (!values.empty()) {
+			setLength(entry, name, values[0]);
+		}
 	}
-	const std::vector<std::string> &values = it->second;
-	if (!values.empty())
-		setLength(entry, name, values[0]);
 }
 
 void StyleSheetTable::setLength(ZLTextStyleEntry &entry, ZLTextStyleEntry::Length name, const std::string &value) {
@@ -90,48 +171,39 @@ void StyleSheetTable::setLength(ZLTextStyleEntry &entry, ZLTextStyleEntry::Lengt
 	}
 }
 
-bool StyleSheetTable::doBreakBefore(const std::string &tag, const std::string &aClass) const {
-	std::map<Key,bool>::const_iterator it = myPageBreakBeforeMap.find(Key(tag, aClass));
-	if (it != myPageBreakBeforeMap.end()) {
-		return it->second;
+void StyleSheetTable::setMargin(ZLTextStyleEntry &entry, ZLTextStyleEntry::Length name, const AttributeMap &map, const std::string &attributeName) {
+	AttributeMap::const_iterator it = map.find(attributeName);
+	if (it != map.end()) {
+		const std::vector<std::string> &values = it->second;
+		if (!values.empty()) {
+			setMargin(entry, name, values[0]);
+		}
 	}
-
-	it = myPageBreakBeforeMap.find(Key("", aClass));
-	if (it != myPageBreakBeforeMap.end()) {
-		return it->second;
-	}
-
-	it = myPageBreakBeforeMap.find(Key(tag, ""));
-	if (it != myPageBreakBeforeMap.end()) {
-		return it->second;
-	}
-
-	return false;
 }
 
-bool StyleSheetTable::doBreakAfter(const std::string &tag, const std::string &aClass) const {
-	std::map<Key,bool>::const_iterator it = myPageBreakAfterMap.find(Key(tag, aClass));
-	if (it != myPageBreakAfterMap.end()) {
-		return it->second;
+void StyleSheetTable::setMargin(ZLTextStyleEntry &entry, ZLTextStyleEntry::Length name, const std::string &value) {
+	short size;
+	ZLTextStyleEntry::SizeUnit unit;
+	if (parseMargin(value, size, unit)) {
+		entry.setLength(name, size, unit);
 	}
-
-	it = myPageBreakAfterMap.find(Key("", aClass));
-	if (it != myPageBreakAfterMap.end()) {
-		return it->second;
-	}
-
-	it = myPageBreakAfterMap.find(Key(tag, ""));
-	if (it != myPageBreakAfterMap.end()) {
-		return it->second;
-	}
-
-	return false;
 }
 
-shared_ptr<ZLTextStyleEntry> StyleSheetTable::control(const std::string &tag, const std::string &aClass) const {
-	std::map<Key,shared_ptr<ZLTextStyleEntry> >::const_iterator it =
-		myControlMap.find(Key(tag, aClass));
-	return (it != myControlMap.end()) ? it->second : 0;
+bool StyleSheetTable::sortBySpecificity(const Entry *e1, const Entry *e2) {
+	return e1->Specificity < e2->Specificity;
+}
+
+void StyleSheetTable::applyStyles(const ElementList &stack, Style &style) const {
+	std::vector<const Entry*> entries;
+	for (std::vector<Entry>::const_iterator i = myEntries.begin(); i != myEntries.end(); ++i) {
+		if ((*i).match(stack)) {
+			entries.push_back(&(*i));
+		}
+	}
+	std::sort(entries.begin(), entries.end(), sortBySpecificity);
+	for (std::vector<const Entry*>::const_iterator e = entries.begin(); e != entries.end(); ++e) {
+		style.apply((*e)->Style);
+	}
 }
 
 const std::vector<std::string> &StyleSheetTable::values(const AttributeMap &map, const std::string &name) {
@@ -143,21 +215,17 @@ const std::vector<std::string> &StyleSheetTable::values(const AttributeMap &map,
 	return emptyVector;
 }
 
-shared_ptr<ZLTextStyleEntry> StyleSheetTable::createControl(shared_ptr<ZLTextStyleEntry> entry, const AttributeMap &styles) {
-	if (entry.isNull()) {
-		entry = new ZLTextStyleEntry();
-	}
-
+void StyleSheetTable::updateTextStyle(ZLTextStyleEntry &entry, const AttributeMap &styles) {
 	const std::vector<std::string> &alignment = values(styles, "text-align");
 	if (!alignment.empty()) {
 		if (alignment[0] == "justify") {
-			entry->setAlignmentType(ALIGN_JUSTIFY);
+			entry.setAlignmentType(ALIGN_JUSTIFY);
 		} else if (alignment[0] == "left") {
-			entry->setAlignmentType(ALIGN_LEFT);
+			entry.setAlignmentType(ALIGN_LEFT);
 		} else if (alignment[0] == "right") {
-			entry->setAlignmentType(ALIGN_RIGHT);
+			entry.setAlignmentType(ALIGN_RIGHT);
 		} else if (alignment[0] == "center") {
-			entry->setAlignmentType(ALIGN_CENTER);
+			entry.setAlignmentType(ALIGN_CENTER);
 		}
 	}
 
@@ -178,23 +246,23 @@ shared_ptr<ZLTextStyleEntry> StyleSheetTable::createControl(shared_ptr<ZLTextSty
 		} else if (bold[0] == "lighter") {
 		}
 		if (num != -1) {
-			entry->setFontModifier(FONT_MODIFIER_BOLD, num >= 600);
+			entry.setFontModifier(FONT_MODIFIER_BOLD, num >= 600);
 		}
 	}
 
 	const std::vector<std::string> &italic = values(styles, "font-style");
 	if (!italic.empty()) {
-		entry->setFontModifier(FONT_MODIFIER_ITALIC, italic[0] == "italic");
+		entry.setFontModifier(FONT_MODIFIER_ITALIC, italic[0] == "italic");
 	}
 
 	const std::vector<std::string> &variant = values(styles, "font-variant");
 	if (!variant.empty()) {
-		entry->setFontModifier(FONT_MODIFIER_SMALLCAPS, variant[0] == "small-caps");
+		entry.setFontModifier(FONT_MODIFIER_SMALLCAPS, variant[0] == "small-caps");
 	}
 
 	const std::vector<std::string> &fontFamily = values(styles, "font-family");
 	if (!fontFamily.empty() && !fontFamily[0].empty()) {
-		entry->setFontFamily(fontFamily[0]);
+		entry.setFontFamily(fontFamily[0]);
 	}
 
 	short size;
@@ -203,19 +271,19 @@ shared_ptr<ZLTextStyleEntry> StyleSheetTable::createControl(shared_ptr<ZLTextSty
 	if (!fontSize.empty()) {
 		std::string value = fontSize[0];
 		if (value == "xx-small") {
-			entry->setFontSizeMag(-3);
+			entry.setFontSizeMag(-3);
 		} else if (value == "x-small") {
-			entry->setFontSizeMag(-2);
+			entry.setFontSizeMag(-2);
 		} else if (value == "small" || value == "smaller") {
-			entry->setFontSizeMag(-1);
+			entry.setFontSizeMag(-1);
 		} else if (value == "medium") {
-			entry->setFontSizeMag(0);
+			entry.setFontSizeMag(0);
 		} else if (value == "large" || value == "larger") {
-			entry->setFontSizeMag(1);
+			entry.setFontSizeMag(1);
 		} else if (value == "x-large") {
-			entry->setFontSizeMag(2);
+			entry.setFontSizeMag(2);
 		} else if (value == "xx-large") {
-			entry->setFontSizeMag(3);
+			entry.setFontSizeMag(3);
 		} else {
 			if (parseLength(value, size, unit)) {
 				switch (unit) {
@@ -225,16 +293,21 @@ shared_ptr<ZLTextStyleEntry> StyleSheetTable::createControl(shared_ptr<ZLTextSty
 				case ZLTextStyleEntry::SIZE_UNIT_EM_100:
 				case ZLTextStyleEntry::SIZE_UNIT_EX_100:
 				case ZLTextStyleEntry::SIZE_UNIT_PERCENT:
-					entry->setFontSizeMag(
-							      (size < 100 && size > 80) ? -1 :
-							      (size > 100 && size < 120) ? 1 :
-							      (size - 100)/20);
+					entry.setFontSizeMag((size < 100 && size > 80) ? -1 :
+					                     (size > 100 && size < 120) ? 1 :
+					                     (size - 100)/20);
 					break;
 				}
 			}
 		}
 	}
 
+	const std::vector<std::string> &opacity = values(styles, "opacity");
+	if (!opacity.empty()) {
+		const int value = (int)(255 * ZLStringUtil::stringToDouble(opacity[0], 1));
+		entry.setOpacity((unsigned char)((value < 0) ? 0 : (value > 255) ? 255 : value));
+	}
+
 	std::vector<std::string> margins = values(styles, "margin");
 	if (!margins.empty() && margins.back() == "!important") {
 		// Ignore the "!important" modifier for now
@@ -242,78 +315,82 @@ shared_ptr<ZLTextStyleEntry> StyleSheetTable::createControl(shared_ptr<ZLTextSty
 	}
 	switch (margins.size()) {
 	case 1:
-		if (parseLength(margins[0], size, unit)) {
-			entry->setLength(ZLTextStyleEntry::LENGTH_SPACE_BEFORE, size, unit);
-			entry->setLength(ZLTextStyleEntry::LENGTH_RIGHT_INDENT, size, unit);
-			entry->setLength(ZLTextStyleEntry::LENGTH_SPACE_AFTER, size, unit);
-			entry->setLength(ZLTextStyleEntry::LENGTH_LEFT_INDENT, size, unit);
+		if (parseMargin(margins[0], size, unit)) {
+			entry.setLength(ZLTextStyleEntry::LENGTH_SPACE_BEFORE, size, unit);
+			entry.setLength(ZLTextStyleEntry::LENGTH_RIGHT_INDENT, size, unit);
+			entry.setLength(ZLTextStyleEntry::LENGTH_SPACE_AFTER, size, unit);
+			entry.setLength(ZLTextStyleEntry::LENGTH_LEFT_INDENT, size, unit);
 		}
 		break;
 	case 2:
-		if (parseLength(margins[0], size, unit)) {
-			entry->setLength(ZLTextStyleEntry::LENGTH_SPACE_BEFORE, size, unit);
-			entry->setLength(ZLTextStyleEntry::LENGTH_SPACE_AFTER, size, unit);
+		if (parseMargin(margins[0], size, unit)) {
+			entry.setLength(ZLTextStyleEntry::LENGTH_SPACE_BEFORE, size, unit);
+			entry.setLength(ZLTextStyleEntry::LENGTH_SPACE_AFTER, size, unit);
 		}
-		if (parseLength(margins[1], size, unit)) {
-			entry->setLength(ZLTextStyleEntry::LENGTH_RIGHT_INDENT, size, unit);
-			entry->setLength(ZLTextStyleEntry::LENGTH_LEFT_INDENT, size, unit);
+		if (parseMargin(margins[1], size, unit)) {
+			entry.setLength(ZLTextStyleEntry::LENGTH_RIGHT_INDENT, size, unit);
+			entry.setLength(ZLTextStyleEntry::LENGTH_LEFT_INDENT, size, unit);
 		}
 		break;
 	case 3:
-		setLength(*entry, ZLTextStyleEntry::LENGTH_SPACE_BEFORE, margins[0]);
-		if (parseLength(margins[1], size, unit)) {
-			entry->setLength(ZLTextStyleEntry::LENGTH_RIGHT_INDENT, size, unit);
-			entry->setLength(ZLTextStyleEntry::LENGTH_LEFT_INDENT,  size, unit);
+		setMargin(entry, ZLTextStyleEntry::LENGTH_SPACE_BEFORE, margins[0]);
+		if (parseMargin(margins[1], size, unit)) {
+			entry.setLength(ZLTextStyleEntry::LENGTH_RIGHT_INDENT, size, unit);
+			entry.setLength(ZLTextStyleEntry::LENGTH_LEFT_INDENT,  size, unit);
 		}
-		setLength(*entry, ZLTextStyleEntry::LENGTH_SPACE_AFTER,  margins[2]);
+		setMargin(entry, ZLTextStyleEntry::LENGTH_SPACE_AFTER,  margins[2]);
 		break;
 	case 4:
-		setLength(*entry, ZLTextStyleEntry::LENGTH_SPACE_BEFORE, margins[0]);
-		setLength(*entry, ZLTextStyleEntry::LENGTH_RIGHT_INDENT, margins[1]);
-		setLength(*entry, ZLTextStyleEntry::LENGTH_SPACE_AFTER,  margins[2]);
-		setLength(*entry, ZLTextStyleEntry::LENGTH_LEFT_INDENT,  margins[3]);
+		setMargin(entry, ZLTextStyleEntry::LENGTH_SPACE_BEFORE, margins[0]);
+		setMargin(entry, ZLTextStyleEntry::LENGTH_RIGHT_INDENT, margins[1]);
+		setMargin(entry, ZLTextStyleEntry::LENGTH_SPACE_AFTER,  margins[2]);
+		setMargin(entry, ZLTextStyleEntry::LENGTH_LEFT_INDENT,  margins[3]);
 		break;
 	}
 
-	setLength(*entry, ZLTextStyleEntry::LENGTH_LEFT_INDENT, styles, "margin-left");
-	setLength(*entry, ZLTextStyleEntry::LENGTH_RIGHT_INDENT, styles, "margin-right");
-	setLength(*entry, ZLTextStyleEntry::LENGTH_FIRST_LINE_INDENT_DELTA, styles, "text-indent");
-	setLength(*entry, ZLTextStyleEntry::LENGTH_SPACE_BEFORE, styles, "margin-top");
-	setLength(*entry, ZLTextStyleEntry::LENGTH_SPACE_BEFORE, styles, "padding-top");
-	setLength(*entry, ZLTextStyleEntry::LENGTH_SPACE_AFTER, styles, "margin-bottom");
-	setLength(*entry, ZLTextStyleEntry::LENGTH_SPACE_AFTER, styles, "padding-bottom");
-
-	return entry;
+	setMargin(entry, ZLTextStyleEntry::LENGTH_LEFT_INDENT, styles, "margin-left");
+	setMargin(entry, ZLTextStyleEntry::LENGTH_RIGHT_INDENT, styles, "margin-right");
+	setLength(entry, ZLTextStyleEntry::LENGTH_FIRST_LINE_INDENT_DELTA, styles, "text-indent");
+	setMargin(entry, ZLTextStyleEntry::LENGTH_SPACE_BEFORE, styles, "margin-top");
+	setLength(entry, ZLTextStyleEntry::LENGTH_SPACE_BEFORE, styles, "padding-top");
+	setMargin(entry, ZLTextStyleEntry::LENGTH_SPACE_AFTER, styles, "margin-bottom");
+	setLength(entry, ZLTextStyleEntry::LENGTH_SPACE_AFTER, styles, "padding-bottom");
 }
 
-bool StyleSheetTable::getPageBreakBefore(const AttributeMap &map, bool &value) {
+bool StyleSheetTable::getPageBreakBefore(const AttributeMap &map, ZLBoolean3 &value) {
 	const std::vector<std::string> &pbb = values(map, "page-break-before");
 	if (!pbb.empty()) {
 		if ((pbb[0] == "always") ||
 		    (pbb[0] == "left") ||
 		    (pbb[0] == "right")) {
-			value = true;
+			value = B3_TRUE;
 			return true;
 		} else if (pbb[0] == "avoid") {
-			value = false;
+			value = B3_FALSE;
 			return true;
 		}
 	}
 	return false;
 }
 
-bool StyleSheetTable::getPageBreakAfter(const AttributeMap &map, bool &value) {
+bool StyleSheetTable::getPageBreakAfter(const AttributeMap &map, ZLBoolean3 &value) {
 	const std::vector<std::string> &pba = values(map, "page-break-after");
 	if (!pba.empty()) {
 		if ((pba[0] == "always") ||
 		    (pba[0] == "left") ||
 		    (pba[0] == "right")) {
-			value = true;
+			value = B3_TRUE;
 			return true;
 		} else if (pba[0] == "avoid") {
-			value = false;
+			value = B3_FALSE;
 			return true;
 		}
 	}
 	return false;
 }
+
+void StyleSheetTable::updateStyle(Style &style, const AttributeMap &map) {
+	updateTextStyle(style.TextStyle, map);
+	getPageBreakBefore(map, style.PageBreakBefore);
+	getPageBreakAfter(map, style.PageBreakAfter);
+}
diff --git a/fbreader/fbreader/fbreader/src/formats/css/StyleSheetTable.h b/fbreader/fbreader/fbreader/src/formats/css/StyleSheetTable.h
index 97cb205..0b70011 100644
--- a/fbreader/fbreader/fbreader/src/formats/css/StyleSheetTable.h
+++ b/fbreader/fbreader/fbreader/src/formats/css/StyleSheetTable.h
@@ -27,50 +27,151 @@
 #include <shared_ptr.h>
 
 #include <ZLTextParagraph.h>
+#include <ZLBoolean3.h>
 
 class StyleSheetTable {
 
 public:
+	struct Element {
+		Element(const std::string &tag, const char *klass, const char* id);
+		std::string Name;
+		std::vector<std::string> Classes;
+		std::string Id;
+	};
+
+	class Selector {
+	public:
+		Selector(const std::string &type, const std::string &klass, const std::string &id);
+		Selector(const std::string &type, const std::string &klass);
+		Selector(const std::string &selector);
+		Selector(const Selector &other);
+		Selector();
+
+		Selector &operator = (const Selector &other);
+		bool operator == (const Selector &other) const;
+		bool operator != (const Selector &other) const;
+		bool operator < (const Selector &other) const;
+		bool match(const Element &element) const;
+
+		static bool match(const std::string &pattern, const std::string &str);
+		static bool match(const std::string &pattern, const std::vector<std::string> &strings);
+
+		const std::string &type() const;
+		const std::string &klass() const;
+		const std::string &id() const;
+		int a() const;
+		int b() const;
+		int c() const;
+
+	private:
+		std::string myType;
+		std::string myClass;
+		std::string myId;
+	};
+
+	typedef std::vector<Element> ElementList;
+	typedef std::vector<Selector> SelectorList;
 	typedef std::map<std::string,std::vector<std::string> > AttributeMap;
-	static shared_ptr<ZLTextStyleEntry> createControl(shared_ptr<ZLTextStyleEntry> entry, const AttributeMap &map);
-	static bool getPageBreakBefore(const AttributeMap &map, bool &value);
-	static bool getPageBreakAfter(const AttributeMap &map, bool &value);
+
+	struct Style {
+		Style();
+		Style(const Style &other);
+		Style(const AttributeMap &map);
+
+		Style &operator = (const Style &other);
+		void apply(const Style &other);
+
+		ZLTextStyleEntry TextStyle;
+		ZLBoolean3 PageBreakBefore;
+		ZLBoolean3 PageBreakAfter;
+	};
+
+	typedef std::vector<Style> StyleList;
+	static void updateStyle(Style &style, const AttributeMap &map);
+	static void updateTextStyle(ZLTextStyleEntry &entry, const AttributeMap &map);
+	static bool getPageBreakBefore(const AttributeMap &map, ZLBoolean3 &value);
+	static bool getPageBreakAfter(const AttributeMap &map, ZLBoolean3 &value);
 
 private:
-	void addMap(const std::string &tag, const std::string &aClass, const AttributeMap &map);
+	struct Entry {
+		Entry();
+		Entry(const SelectorList &selectors, int specificity, const AttributeMap &map);
+		Entry &operator = (const Entry &other);
+		bool match(const ElementList &stack) const;
 
+		SelectorList Selectors;
+		int Specificity;
+		struct Style Style;
+	};
+
+	void addMap(const std::vector<std::string> &selectors, const AttributeMap &map);
+
+	static bool parseLength(const std::string &toParse, short &size, ZLTextStyleEntry::SizeUnit &unit);
+	static bool parseMargin(const std::string &toParse, short &size, ZLTextStyleEntry::SizeUnit &unit);
 	static void setLength(ZLTextStyleEntry &entry, ZLTextStyleEntry::Length name, const AttributeMap &map, const std::string &attributeName);
 	static void setLength(ZLTextStyleEntry &entry, ZLTextStyleEntry::Length name, const std::string &value);
+	static void setMargin(ZLTextStyleEntry &entry, ZLTextStyleEntry::Length name, const AttributeMap &map, const std::string &attributeName);
+	static void setMargin(ZLTextStyleEntry &entry, ZLTextStyleEntry::Length name, const std::string &value);
 	static const std::vector<std::string> &values(const AttributeMap &map, const std::string &name);
+	static bool sortBySpecificity(const Entry *e1, const Entry *e2);
 
 public:
 	bool isEmpty() const;
-	bool doBreakBefore(const std::string &tag, const std::string &aClass) const;
-	bool doBreakAfter(const std::string &tag, const std::string &aClass) const;
-	shared_ptr<ZLTextStyleEntry> control(const std::string &tag, const std::string &aClass) const;
+	void applyStyles(const ElementList &stack, Style &style) const;
 
 private:
-	struct Key {
-		Key(const std::string &tag, const std::string &aClass);
-
-		const std::string TagName;
-		const std::string ClassName;
-
-		bool operator < (const Key &key) const;
-	};
-
-	std::map<Key,shared_ptr<ZLTextStyleEntry> > myControlMap;
-	std::map<Key,bool> myPageBreakBeforeMap;
-	std::map<Key,bool> myPageBreakAfterMap;
+	std::vector<Entry> myEntries;
 
 friend class StyleSheetTableParser;
 };
 
-inline StyleSheetTable::Key::Key(const std::string &tag, const std::string &aClass) : TagName(tag), ClassName(aClass) {
+inline StyleSheetTable::Selector::Selector(const std::string &type, const std::string &klass, const std::string &id) : myType(type), myClass(klass), myId(id) {}
+inline StyleSheetTable::Selector::Selector(const std::string &type, const std::string &klass) : myType(type), myClass(klass) {}
+inline StyleSheetTable::Selector::Selector(const StyleSheetTable::Selector &other) : myType(other.myType), myClass(other.myClass), myId(other.myId) {}
+inline StyleSheetTable::Selector::Selector() {}
+inline StyleSheetTable::Selector &StyleSheetTable::Selector::operator = (const StyleSheetTable::Selector &other) {
+	myType = other.myType; myClass = other.myClass; myId = other.myId; return *this;
+}
+inline bool StyleSheetTable::Selector::operator == (const Selector &other) const {
+	return (&other == this) || (myType == other.myType && myClass == other.myClass && myId == other.myId);
+}
+inline bool StyleSheetTable::Selector::operator != (const Selector &other) const {
+	return (&other != this) && (myType != other.myType || myClass != other.myClass || myId != other.myId);
+}
+inline bool StyleSheetTable::Selector::operator < (const StyleSheetTable::Selector &other) const {
+	return myType < other.myType || (myType == other.myType && (myClass < other.myClass || (myClass == other.myClass && myId < other.myId)));
+}
+inline bool StyleSheetTable::Selector::match(const Element &element) const {
+	return match(myType, element.Name) && match(myId, element.Id) && match(myClass, element.Classes);
+}
+inline int StyleSheetTable::Selector::a() const { return myId.empty() ? 0 : 1; }
+inline int StyleSheetTable::Selector::b() const { return myClass.empty() ? 0 : 1; }
+inline int StyleSheetTable::Selector::c() const { return myType.empty() ? 0 : 1; }
+inline const std::string &StyleSheetTable::Selector::type() const { return myType; }
+inline const std::string &StyleSheetTable::Selector::klass() const { return myClass; }
+inline const std::string &StyleSheetTable::Selector::id() const { return myId; }
+
+inline StyleSheetTable::Style::Style() : PageBreakBefore(B3_UNDEFINED), PageBreakAfter(B3_UNDEFINED) {}
+inline StyleSheetTable::Style::Style(const StyleSheetTable::Style &other) : TextStyle(other.TextStyle), PageBreakBefore(other.PageBreakBefore), PageBreakAfter(other.PageBreakAfter) {}
+inline StyleSheetTable::Style::Style(const StyleSheetTable::AttributeMap &map) : PageBreakBefore(B3_UNDEFINED), PageBreakAfter(B3_UNDEFINED) {
+	updateStyle(*this, map);
+}
+inline StyleSheetTable::Style &StyleSheetTable::Style::operator = (const StyleSheetTable::Style &other) {
+	TextStyle = other.TextStyle;
+	PageBreakBefore = other.PageBreakBefore;
+	PageBreakAfter = other.PageBreakAfter;
+	return *this;
 }
 
-inline bool StyleSheetTable::Key::operator < (const StyleSheetTable::Key &key) const {
-	return (TagName < key.TagName) || ((TagName == key.TagName) && (ClassName < key.ClassName));
+inline StyleSheetTable::Entry::Entry() : Specificity(0) {}
+inline StyleSheetTable::Entry::Entry(const SelectorList &selectors, int specificity, const AttributeMap &map) : Selectors(selectors), Specificity(specificity), Style(map) {}
+inline StyleSheetTable::Entry &StyleSheetTable::Entry::operator = (const StyleSheetTable::Entry &other) {
+	Selectors = other.Selectors;
+	Style = other.Style;
+	Specificity = other.Specificity;
+	return *this;
 }
 
+inline bool StyleSheetTable::isEmpty() const { return myEntries.empty(); }
+
 #endif /* __STYLESHEETTABLE_H__ */
diff --git a/fbreader/fbreader/fbreader/src/formats/xhtml/XHTMLReader.cpp b/fbreader/fbreader/fbreader/src/formats/xhtml/XHTMLReader.cpp
index 1e3a309..c9fb6c2 100644
--- a/fbreader/fbreader/fbreader/src/formats/xhtml/XHTMLReader.cpp
+++ b/fbreader/fbreader/fbreader/src/formats/xhtml/XHTMLReader.cpp
@@ -41,6 +41,12 @@ std::map<std::string,XHTMLTagAction*> XHTMLReader::ourTagActions;
 XHTMLTagAction::~XHTMLTagAction() {
 }
 
+void XHTMLTagAction::doAtStart(XHTMLReader &reader, const char **xmlattributes) {
+}
+
+void XHTMLTagAction::doAtEnd(XHTMLReader &reader) {
+}
+
 BookReader &XHTMLTagAction::bookReader(XHTMLReader &reader) {
 	return reader.myModelReader;
 }
@@ -68,7 +74,6 @@ class XHTMLTagLinkAction : public XHTMLTagAction {
 
 public:
 	void doAtStart(XHTMLReader &reader, const char **xmlattributes);
-	void doAtEnd(XHTMLReader &reader);
 };
 
 class XHTMLTagParagraphAction : public XHTMLTagAction {
@@ -89,6 +94,11 @@ class XHTMLTagRestartParagraphAction : public XHTMLTagAction {
 
 public:
 	void doAtStart(XHTMLReader &reader, const char **xmlattributes);
+};
+
+class XHTMLTagLineBreakAction : public XHTMLTagAction {
+
+public:
 	void doAtEnd(XHTMLReader &reader);
 };
 
@@ -99,7 +109,6 @@ public:
 	XHTMLTagImageAction(const std::string &attributeName);
 
 	void doAtStart(XHTMLReader &reader, const char **xmlattributes);
-	void doAtEnd(XHTMLReader &reader);
 
 private:
 	shared_ptr<ZLXMLReader::AttributeNamePredicate> myPredicate;
@@ -224,9 +233,6 @@ void XHTMLTagLinkAction::doAtStart(XHTMLReader &reader, const char **xmlattribut
 	//reader.myStyleSheetTable.dump();
 }
 
-void XHTMLTagLinkAction::doAtEnd(XHTMLReader&) {
-}
-
 void XHTMLTagParagraphAction::doAtStart(XHTMLReader &reader, const char**) {
 	if (!reader.myNewParagraphInProgress) {
 		beginParagraph(reader);
@@ -255,7 +261,8 @@ void XHTMLTagRestartParagraphAction::doAtStart(XHTMLReader &reader, const char**
 	beginParagraph(reader);
 }
 
-void XHTMLTagRestartParagraphAction::doAtEnd(XHTMLReader&) {
+void XHTMLTagLineBreakAction::doAtEnd(XHTMLReader& reader) {
+	bookReader(reader).addLineBreak();
 }
 
 void XHTMLTagItemAction::doAtStart(XHTMLReader &reader, const char**) {
@@ -280,6 +287,11 @@ XHTMLTagImageAction::XHTMLTagImageAction(const std::string &attributeName) {
 }
 
 void XHTMLTagImageAction::doAtStart(XHTMLReader &reader, const char **xmlattributes) {
+	// Ignore transparent images
+	if (!reader.myOpacityStack.back()) {
+		return;
+	}
+
 	const char *fileName = reader.attributeValue(xmlattributes, *myPredicate);
 	if (fileName == 0) {
 		return;
@@ -302,6 +314,7 @@ void XHTMLTagImageAction::doAtStart(XHTMLReader &reader, const char **xmlattribu
 	if (flag) {
 		beginParagraph(reader);
 	}
+	reader.myElementHasContents.back() = true;
 }
 
 XHTMLTagSvgAction::XHTMLTagSvgAction(XHTMLSvgImageAttributeNamePredicate &predicate) : myPredicate(predicate) {
@@ -322,9 +335,6 @@ bool XHTMLSvgImageAttributeNamePredicate::accepts(const ZLXMLReader &reader, con
 	return myIsEnabled && NamespaceAttributeNamePredicate::accepts(reader, name);
 }
 
-void XHTMLTagImageAction::doAtEnd(XHTMLReader&) {
-}
-
 XHTMLTagControlAction::XHTMLTagControlAction(FBTextKind control) : myControl(control) {
 }
 
@@ -387,7 +397,7 @@ void XHTMLTagParagraphWithControlAction::doAtEnd(XHTMLReader &reader) {
 }
 
 void XHTMLTagPreAction::doAtStart(XHTMLReader &reader, const char**) {
-	reader.myPreformatted = true;
+	reader.myPreformatted++;
 	beginParagraph(reader);
 	bookReader(reader).addControl(CODE, true);
 }
@@ -395,7 +405,7 @@ void XHTMLTagPreAction::doAtStart(XHTMLReader &reader, const char**) {
 void XHTMLTagPreAction::doAtEnd(XHTMLReader &reader) {
 	bookReader(reader).addControl(CODE, false);
 	endParagraph(reader);
-	reader.myPreformatted = false;
+	reader.myPreformatted--;
 }
 
 XHTMLTagAction *XHTMLReader::addAction(const std::string &tag, XHTMLTagAction *action) {
@@ -440,8 +450,9 @@ void XHTMLReader::fillTagTable() {
 		addAction("cite",	new XHTMLTagControlAction(CITE));
 		addAction("sub",	new XHTMLTagControlAction(SUB));
 		addAction("sup",	new XHTMLTagControlAction(SUP));
-		addAction("dd",	new XHTMLTagControlAction(DEFINITION_DESCRIPTION));
-		addAction("dfn",	new XHTMLTagControlAction(DEFINITION));
+		addAction("dd",	new XHTMLTagParagraphWithControlAction(DEFINITION_DESCRIPTION));
+		addAction("dt",	new XHTMLTagParagraphWithControlAction(DEFINITION));
+		addAction("dfn",	new XHTMLTagParagraphWithControlAction(DEFINITION));
 		addAction("strike",	new XHTMLTagControlAction(STRIKETHROUGH));
 
 		addAction("a",	new XHTMLTagHyperlinkAction());
@@ -457,7 +468,7 @@ void XHTMLReader::fillTagTable() {
 
 		//addAction("base",	new XHTMLTagAction());
 		//addAction("blockquote",	new XHTMLTagAction());
-		addAction("br",	new XHTMLTagRestartParagraphAction());
+		addAction("br",	new XHTMLTagLineBreakAction());
 		//addAction("center",	new XHTMLTagAction());
 		addAction("div", new XHTMLTagParagraphAction());
 		addAction("dt", new XHTMLTagParagraphAction());
@@ -495,13 +506,14 @@ bool XHTMLReader::readFile(const ZLFile &file, const std::string &referenceName)
 	const int index = referenceName.rfind('/', referenceName.length() - 1);
 	myReferenceDirName = referenceName.substr(0, index + 1);
 
-	myPreformatted = false;
+	myPreformatted = 0;
 	myNewParagraphInProgress = false;
 	myReadState = READ_NOTHING;
 
-	myCSSStack.clear();
-	myStyleEntryStack.clear();
-	myStylesToRemove = 0;
+	myElementStack.clear();
+	myStyleStack.clear();
+	myElementHasContents.clear();
+	myOpacityStack.clear();
 
 	return readDocument(file);
 }
@@ -516,80 +528,45 @@ shared_ptr<ZLTextStyleEntry> XHTMLReader::addStyleEntry(shared_ptr<ZLTextStyleEn
 
 void XHTMLReader::startElementHandler(const char *tag, const char **attributes) {
 	static const std::string HASH = "#";
-	static const std::string EMPTY;
 	const char *id = attributeValue(attributes, "id");
+	const char *style = attributeValue(attributes, "style");
+	const char *klass = attributeValue(attributes, "class");
 	if (id != 0) {
 		myModelReader.addHyperlinkLabel(myReferenceName + HASH + id);
 	}
 
 	const std::string sTag = ZLUnicodeUtil::toLower(tag);
+	myElementStack.push_back(StyleSheetTable::Element(sTag, klass, id));
 
-	const char *aClass = attributeValue(attributes, "class");
-	std::vector<std::string> classes;
-	if (aClass != 0) {
-		classes = ZLStringUtil::splitString(aClass, ", \n");
-	}
-	if (classes.empty()) {
-		classes.push_back(EMPTY);
-	}
-
-	shared_ptr<ZLTextStyleEntry> inlineStyle;
-	const char *style = attributeValue(attributes, "style");
-	ZLBoolean3 pageBreakBefore(B3_UNDEFINED), pageBreakAfter(B3_UNDEFINED);
+	StyleSheetTable::Style cssStyle;
+	myStyleSheetTable.applyStyles(myElementStack, cssStyle);
 	if (style != 0) {
-		inlineStyle = myStyleParser.parseString(style, &pageBreakBefore, &pageBreakAfter);
+		cssStyle.apply(myStyleParser.parseString(style));
 	}
-	if (pageBreakBefore == B3_UNDEFINED) {
-		for (unsigned int i=0; i<classes.size(); i++) {
-			if (myStyleSheetTable.doBreakBefore(sTag, classes[i])) {
-				pageBreakBefore = B3_TRUE;
-				break;
-			}
-		}
-	}
-	if (pageBreakAfter == B3_UNDEFINED) {
-		for (unsigned int i=0; i<classes.size(); i++) {
-			if (myStyleSheetTable.doBreakAfter(sTag, classes[i])) {
-				pageBreakAfter = B3_TRUE;
-				break;
-			}
-		}
-	}
-	if (pageBreakBefore == B3_TRUE) {
+	if (cssStyle.PageBreakBefore == B3_TRUE) {
 		myModelReader.insertEndOfSectionParagraph();
 	}
-	myDoPageBreakAfterStack.push_back(pageBreakAfter == B3_TRUE);
+
+	int opacity = myOpacityStack.empty() ? 255 : myOpacityStack.back();
+	if (cssStyle.TextStyle.opacitySupported()) {
+		opacity *= cssStyle.TextStyle.opacity();
+		opacity /= 255;
+	}
+
+	myStyleStack.push_back(cssStyle);
+	myElementHasContents.push_back(false);
+	myOpacityStack.push_back((unsigned char)opacity);
 
 	XHTMLTagAction *action = ourTagActions[sTag];
 	if (action != 0) {
 		action->doAtStart(*this, attributes);
 	}
 
-	shared_ptr<ZLTextStyleEntry> entry;
-	entry = addStyleEntry(entry, myStyleSheetTable.control(sTag, EMPTY));
-	for (unsigned int i=0; i<classes.size(); i++) {
-		std::string klass = classes[i];
-		entry = addStyleEntry(entry, myStyleSheetTable.control(EMPTY, klass));
-		if (!klass.empty()) {
-			entry = addStyleEntry(entry, myStyleSheetTable.control(sTag, klass));
-		}
-	}
-	entry = addStyleEntry(entry, inlineStyle);
-	if (!entry.isNull()) {
-		myModelReader.addControl(*entry);
-		myStyleEntryStack.push_back(entry);
-		myCSSStack.push_back(1);
-	} else {
-		myCSSStack.push_back(0);
-	}
+	myModelReader.addControl(cssStyle.TextStyle);
 }
 
 void XHTMLReader::endElementHandler(const char *tag) {
-	for (int i = myCSSStack.back(); i > 0; --i) {
-		myModelReader.addControl(REGULAR, false);
-	}
-	myStylesToRemove = myCSSStack.back();
-	myCSSStack.pop_back();
+	myModelReader.addControl(REGULAR, false);
 
 	XHTMLTagAction *action = ourTagActions[ZLUnicodeUtil::toLower(tag)];
 	if (action != 0) {
@@ -597,58 +574,32 @@ void XHTMLReader::endElementHandler(const char *tag) {
 		myNewParagraphInProgress = false;
 	}
 
-	for (; myStylesToRemove > 0; --myStylesToRemove) {
-		myStyleEntryStack.pop_back();
-	}
-
-	if (myDoPageBreakAfterStack.back()) {
+	const bool haveContents = myElementHasContents.back();
+	if (myStyleStack.back().PageBreakAfter == B3_TRUE && haveContents) {
 		myModelReader.insertEndOfSectionParagraph();
 	}
-	myDoPageBreakAfterStack.pop_back();
+
+	myElementStack.pop_back();
+	myStyleStack.pop_back();
+	myElementHasContents.pop_back();
+	myOpacityStack.pop_back();
+
+	if (!myElementHasContents.empty() && haveContents) {
+		myElementHasContents.back() = true;
+	}
 }
 
 void XHTMLReader::beginParagraph() {
 	myCurrentParagraphIsEmpty = true;
 	myModelReader.beginParagraph();
-	bool doBlockSpaceBefore = false;
-	for (std::vector<shared_ptr<ZLTextStyleEntry> >::const_iterator it = myStyleEntryStack.begin(); it != myStyleEntryStack.end(); ++it) {
-		myModelReader.addControl(**it);
-		doBlockSpaceBefore =
-			doBlockSpaceBefore ||
-			(*it)->lengthSupported(ZLTextStyleEntry::LENGTH_SPACE_BEFORE);
-	}
-
-	if (doBlockSpaceBefore) {
-		ZLTextStyleEntry blockingEntry;
-		blockingEntry.setLength(
-			ZLTextStyleEntry::LENGTH_SPACE_BEFORE,
-			0,
-			ZLTextStyleEntry::SIZE_UNIT_PIXEL
-		);
-		myModelReader.addControl(blockingEntry);
+	if (!myStyleStack.empty()) {
+		for (StyleSheetTable::StyleList::const_iterator it = myStyleStack.begin(); it != myStyleStack.end(); ++it) {
+			myModelReader.addControl(((*it).TextStyle));
+		}
 	}
 }
 
 void XHTMLReader::endParagraph() {
-	bool doBlockSpaceAfter = false;
-	for (std::vector<shared_ptr<ZLTextStyleEntry> >::const_iterator it = myStyleEntryStack.begin(); it != myStyleEntryStack.end() - myStylesToRemove; ++it) {
-		doBlockSpaceAfter =
-			doBlockSpaceAfter ||
-			(*it)->lengthSupported(ZLTextStyleEntry::LENGTH_SPACE_AFTER);
-	}
-	if (doBlockSpaceAfter) {
-		ZLTextStyleEntry blockingEntry;
-		blockingEntry.setLength(
-			ZLTextStyleEntry::LENGTH_SPACE_AFTER,
-			0,
-			ZLTextStyleEntry::SIZE_UNIT_PIXEL
-		);
-		myModelReader.addControl(blockingEntry);
-	}
-	for (; myStylesToRemove > 0; --myStylesToRemove) {
-		myModelReader.addControl(*myStyleEntryStack.back());
-		myStyleEntryStack.pop_back();
-	}
 	myModelReader.endParagraph();
 }
 
@@ -662,35 +613,35 @@ void XHTMLReader::characterDataHandler(const char *text, size_t len) {
 			}
 			break;
 		case READ_BODY:
-			if (myPreformatted) {
-				if ((*text == '\r') || (*text == '\n')) {
-					myModelReader.addControl(CODE, false);
-					endParagraph();
-					beginParagraph();
-					myModelReader.addControl(CODE, true);
-				}
-				size_t spaceCounter = 0;
-				while ((spaceCounter < len) && isspace((unsigned char)*(text + spaceCounter))) {
-					++spaceCounter;
-				}
-				myModelReader.addFixedHSpace(spaceCounter);
-				text += spaceCounter;
-				len -= spaceCounter;
-			} else if ((myNewParagraphInProgress) || !myModelReader.paragraphIsOpen()) {
-				while (isspace((unsigned char)*text)) {
-					++text;
-					if (--len == 0) {
-						break;
+			if (myOpacityStack.back()) {
+				if (myPreformatted) {
+					if ((*text == '\r') || (*text == '\n')) {
+						myModelReader.addLineBreak();
+					}
+					size_t spaceCounter = 0;
+					while ((spaceCounter < len) && isspace((unsigned char)*(text + spaceCounter))) {
+						++spaceCounter;
+					}
+					myModelReader.addFixedHSpace(spaceCounter);
+					text += spaceCounter;
+					len -= spaceCounter;
+				} else if ((myNewParagraphInProgress) || !myModelReader.paragraphIsOpen()) {
+					while (isspace((unsigned char)*text)) {
+						++text;
+						if (--len == 0) {
+							break;
+						}
 					}
 				}
-			}
-			if (len > 0) {
-				myCurrentParagraphIsEmpty = false;
-				if (!myModelReader.paragraphIsOpen()) {
-					myModelReader.beginParagraph();
+				if (len > 0) {
+					myCurrentParagraphIsEmpty = false;
+					myElementHasContents.back() = true;
+					if (!myModelReader.paragraphIsOpen()) {
+						myModelReader.beginParagraph();
+					}
+					myModelReader.addData(std::string(text, len));
+					myNewParagraphInProgress = false;
 				}
-				myModelReader.addData(std::string(text, len));
-				myNewParagraphInProgress = false;
 			}
 			break;
 	}
diff --git a/fbreader/fbreader/fbreader/src/formats/xhtml/XHTMLReader.h b/fbreader/fbreader/fbreader/src/formats/xhtml/XHTMLReader.h
index af96cea..89851ff 100644
--- a/fbreader/fbreader/fbreader/src/formats/xhtml/XHTMLReader.h
+++ b/fbreader/fbreader/fbreader/src/formats/xhtml/XHTMLReader.h
@@ -39,8 +39,8 @@ class XHTMLTagAction {
 public:
 	virtual ~XHTMLTagAction();
 	
-	virtual void doAtStart(XHTMLReader &reader, const char **xmlattributes) = 0;
-	virtual void doAtEnd(XHTMLReader &reader) = 0;
+    virtual void doAtStart(XHTMLReader &reader, const char **xmlattributes);
+    virtual void doAtEnd(XHTMLReader &reader);
 
 protected:
 	static BookReader &bookReader(XHTMLReader &reader);	
@@ -80,13 +80,13 @@ private:
 	std::string myPathPrefix;
 	std::string myReferenceName;
 	std::string myReferenceDirName;
-	bool myPreformatted;
+    int myPreformatted;
 	bool myNewParagraphInProgress;
 	StyleSheetTable myStyleSheetTable;
-	std::vector<int> myCSSStack;
-	std::vector<shared_ptr<ZLTextStyleEntry> > myStyleEntryStack;
-	int myStylesToRemove;
-	std::vector<bool> myDoPageBreakAfterStack;
+    StyleSheetTable::ElementList myElementStack;
+    StyleSheetTable::StyleList myStyleStack;
+    std::vector<unsigned char> myOpacityStack;
+    std::vector<bool> myElementHasContents;
 	bool myCurrentParagraphIsEmpty;
 	StyleSheetSingleStyleParser myStyleParser;
 	shared_ptr<StyleSheetTableParser> myTableParser;
@@ -104,6 +104,7 @@ private:
 	friend class XHTMLTagParagraphAction;
 	friend class XHTMLTagBodyAction;
 	friend class XHTMLTagRestartParagraphAction;
+    friend class XHTMLTagImageAction;
 };
 
 #endif /* __XHTMLREADER_H__ */
diff --git a/fbreader/fbreader/zlibrary/core/src/util/ZLStringUtil.cpp b/fbreader/fbreader/zlibrary/core/src/util/ZLStringUtil.cpp
index d255404..30e2236 100644
--- a/fbreader/fbreader/zlibrary/core/src/util/ZLStringUtil.cpp
+++ b/fbreader/fbreader/zlibrary/core/src/util/ZLStringUtil.cpp
@@ -91,17 +91,18 @@ void ZLStringUtil::stripWhiteSpaces(std::string &str) {
 	str.erase(r_counter, length - r_counter);
 }
 
-std::vector<std::string> ZLStringUtil::splitString(const std::string &str, const char* delim)
-{
+std::vector<std::string> ZLStringUtil::splitString(const char *str, const char* delim) {
 	std::vector<std::string> tokens;
-	char *buf = strdup(str.c_str());
-	char *saveptr;
-	char *token = strtok_r(buf, delim, &saveptr);
-	while (token) {
-		tokens.push_back(std::string(token));
-		token = strtok_r(NULL, delim, &saveptr);
+	if (str != 0) {
+		char *buf = strdup(str);
+		char *saveptr;
+		char *token = strtok_r(buf, delim, &saveptr);
+		while (token) {
+			tokens.push_back(std::string(token));
+			token = strtok_r(NULL, delim, &saveptr);
+		}
+		free(buf);
 	}
-	free(buf);
 	return tokens;
 }
 
diff --git a/fbreader/fbreader/zlibrary/core/src/util/ZLStringUtil.h b/fbreader/fbreader/zlibrary/core/src/util/ZLStringUtil.h
index 45dc8c7..809a7aa 100644
--- a/fbreader/fbreader/zlibrary/core/src/util/ZLStringUtil.h
+++ b/fbreader/fbreader/zlibrary/core/src/util/ZLStringUtil.h
@@ -34,6 +34,7 @@ public:
 	static void appendNumber(std::string &str, unsigned int n);
 	static void append(std::string &str, const std::vector<std::string> &buffer);
 	static void stripWhiteSpaces(std::string &str);
+	static std::vector<std::string> splitString(const char *str, const char* delim);
 	static std::vector<std::string> splitString(const std::string &str, const char* delim);
 
 	static std::string printf(const std::string &format, const std::string &arg0);
@@ -42,4 +43,8 @@ public:
 	static double stringToDouble(const std::string &value, double defaultValue);
 };
 
+inline std::vector<std::string> ZLStringUtil::splitString(const std::string &str, const char* delim) {
+	return ZLStringUtil::splitString(str.c_str(), delim);
+}
+
 #endif /* __ZLSTRINGUTIL_H__ */
diff --git a/fbreader/fbreader/zlibrary/text/src/area/ZLTextAreaStyle.cpp b/fbreader/fbreader/zlibrary/text/src/area/ZLTextAreaStyle.cpp
index 2efe381..ca156f5 100644
--- a/fbreader/fbreader/zlibrary/text/src/area/ZLTextAreaStyle.cpp
+++ b/fbreader/fbreader/zlibrary/text/src/area/ZLTextAreaStyle.cpp
@@ -103,6 +103,7 @@ int ZLTextArea::Style::elementWidth(const ZLTextElement &element, unsigned int c
 		case ZLTextElement::AFTER_PARAGRAPH_ELEMENT:
 		case ZLTextElement::EMPTY_LINE_ELEMENT:
 			return metrics.FullWidth + abs(textStyle()->lineStartIndent(metrics, false)) + abs(textStyle()->lineEndIndent(metrics, false)) + abs(textStyle()->firstLineIndentDelta(metrics)) + 1;
+		case ZLTextElement::LINE_BREAK_ELEMENT:
 		case ZLTextElement::FORCED_CONTROL_ELEMENT:
 		case ZLTextElement::CONTROL_ELEMENT:
 		case ZLTextElement::START_REVERSED_SEQUENCE_ELEMENT:
@@ -131,6 +132,7 @@ int ZLTextArea::Style::elementHeight(const ZLTextElement &element, const ZLTextS
 		case ZLTextElement::AFTER_PARAGRAPH_ELEMENT:
 			return - textStyle()->spaceBefore(metrics);
 		case ZLTextElement::EMPTY_LINE_ELEMENT:
+		case ZLTextElement::LINE_BREAK_ELEMENT:
 			return myArea.context().stringHeight();
 		case ZLTextElement::INDENT_ELEMENT:
 		case ZLTextElement::HSPACE_ELEMENT:
diff --git a/fbreader/fbreader/zlibrary/text/src/area/ZLTextArea_prepareTextLine.cpp b/fbreader/fbreader/zlibrary/text/src/area/ZLTextArea_prepareTextLine.cpp
index 963ffdb..f0c8f81 100644
--- a/fbreader/fbreader/zlibrary/text/src/area/ZLTextArea_prepareTextLine.cpp
+++ b/fbreader/fbreader/zlibrary/text/src/area/ZLTextArea_prepareTextLine.cpp
@@ -66,6 +66,15 @@ void ZLTextArea::prepareTextLine(Style &style, const ZLTextLineInfo &info, int y
 	const bool endOfParagraph = info.End.isEndOfParagraph();
 	bool wordOccured = false;
 
+	bool endsWithLineBreak = false;
+	if (info.RealStart < info.End) {
+		ZLTextWordCursor last(info.End);
+		last.previousWord();
+		if (last.element().kind() == ZLTextElement::LINE_BREAK_ELEMENT) {
+			endsWithLineBreak = true;
+		}
+	}
+
 	int x = info.StartIndent;
 
 	const int fontSize = style.textStyle()->fontSize();
@@ -89,7 +98,7 @@ void ZLTextArea::prepareTextLine(Style &style, const ZLTextLineInfo &info, int y
 			x += (metrics.FullWidth - style.textStyle()->lineEndIndent(metrics, isRtl()) - info.Width) / 2;
 			break;
 		case ALIGN_JUSTIFY:
-			if (!endOfParagraph && (info.End.element().kind() != ZLTextElement::AFTER_PARAGRAPH_ELEMENT)) {
+			if (!endsWithLineBreak && !endOfParagraph && info.End.element().kind() != ZLTextElement::AFTER_PARAGRAPH_ELEMENT) {
 				fullCorrection = metrics.FullWidth - style.textStyle()->lineEndIndent(metrics, isRtl()) - info.Width;
 			}
 			break;
@@ -140,6 +149,7 @@ void ZLTextArea::prepareTextLine(Style &style, const ZLTextLineInfo &info, int y
 			case ZLTextElement::BEFORE_PARAGRAPH_ELEMENT:
 			case ZLTextElement::AFTER_PARAGRAPH_ELEMENT:
 			case ZLTextElement::EMPTY_LINE_ELEMENT:
+			case ZLTextElement::LINE_BREAK_ELEMENT:
 			case ZLTextElement::FIXED_HSPACE_ELEMENT:
 				break;
 			case ZLTextElement::START_REVERSED_SEQUENCE_ELEMENT:
diff --git a/fbreader/fbreader/zlibrary/text/src/area/ZLTextArea_processTextLine.cpp b/fbreader/fbreader/zlibrary/text/src/area/ZLTextArea_processTextLine.cpp
index a9e04b7..12ca758 100644
--- a/fbreader/fbreader/zlibrary/text/src/area/ZLTextArea_processTextLine.cpp
+++ b/fbreader/fbreader/zlibrary/text/src/area/ZLTextArea_processTextLine.cpp
@@ -177,7 +177,11 @@ ZLTextLineInfoPtr ZLTextArea::processTextLine(Style &style, const ZLTextWordCurs
 				break;
 		}
 
-		if (newInfo.Width > maxWidth && info.Start != info.End) {
+		if (elementKind == ZLTextElement::LINE_BREAK_ELEMENT) {
+			newInfo.End.nextWord();
+			newInfo.setTo(info);
+			break;
+		} else if (newInfo.Width > maxWidth && info.Start != info.End) {
 			if (!info.End.equalElementIndex(start)) {
 				break;
 			}
@@ -222,8 +226,7 @@ ZLTextLineInfoPtr ZLTextArea::processTextLine(Style &style, const ZLTextWordCurs
 		}
 	} while (!newInfo.End.equalElementIndex(end));
 
-	if (!newInfo.End.equalElementIndex(end) && useHyphenator &&
-		 style.textStyle()->allowHyphenations()) {
+	if (elementKind != ZLTextElement::LINE_BREAK_ELEMENT && !newInfo.End.equalElementIndex(end) && useHyphenator && style.textStyle()->allowHyphenations()) {
 		const ZLTextElement &element = paragraphCursor[newInfo.End.elementIndex()];
 		if (element.kind() == ZLTextElement::WORD_ELEMENT) {
 			const int startCharIndex = newInfo.End.charIndex();
diff --git a/fbreader/fbreader/zlibrary/text/src/area/ZLTextElement.h b/fbreader/fbreader/zlibrary/text/src/area/ZLTextElement.h
index aadf50c..07c7957 100644
--- a/fbreader/fbreader/zlibrary/text/src/area/ZLTextElement.h
+++ b/fbreader/fbreader/zlibrary/text/src/area/ZLTextElement.h
@@ -45,6 +45,7 @@ public:
 		BEFORE_PARAGRAPH_ELEMENT,
 		AFTER_PARAGRAPH_ELEMENT,
 		EMPTY_LINE_ELEMENT,
+		LINE_BREAK_ELEMENT,
 		START_REVERSED_SEQUENCE_ELEMENT,
 		END_REVERSED_SEQUENCE_ELEMENT,
 	};
diff --git a/fbreader/fbreader/zlibrary/text/src/area/ZLTextParagraphBuilder.cpp b/fbreader/fbreader/zlibrary/text/src/area/ZLTextParagraphBuilder.cpp
index e0fbcce..43a31db 100644
--- a/fbreader/fbreader/zlibrary/text/src/area/ZLTextParagraphBuilder.cpp
+++ b/fbreader/fbreader/zlibrary/text/src/area/ZLTextParagraphBuilder.cpp
@@ -108,6 +108,9 @@ void ZLTextParagraphCursor::Builder::fill() {
 				updateBidiLevel(myBaseBidiLevel);
 				myLatestBidiLevel = myBaseBidiLevel;
 				break;
+			case ZLTextParagraphEntry::LINE_BREAK_ENTRY:
+				myElements.push_back(myTextElementPool.LineBreakElement);
+				break;
 		}
 	}
 
diff --git a/fbreader/fbreader/zlibrary/text/src/area/ZLTextParagraphCursor.cpp b/fbreader/fbreader/zlibrary/text/src/area/ZLTextParagraphCursor.cpp
index 26e00af..072c7be 100644
--- a/fbreader/fbreader/zlibrary/text/src/area/ZLTextParagraphCursor.cpp
+++ b/fbreader/fbreader/zlibrary/text/src/area/ZLTextParagraphCursor.cpp
@@ -46,6 +46,7 @@ ZLTextElementVector::~ZLTextElementVector() {
 			case ZLTextElement::BEFORE_PARAGRAPH_ELEMENT:
 			case ZLTextElement::AFTER_PARAGRAPH_ELEMENT:
 			case ZLTextElement::EMPTY_LINE_ELEMENT:
+			case ZLTextElement::LINE_BREAK_ELEMENT:
 			case ZLTextElement::START_REVERSED_SEQUENCE_ELEMENT:
 			case ZLTextElement::END_REVERSED_SEQUENCE_ELEMENT:
 				break;
@@ -59,6 +60,7 @@ ZLTextElementPool::ZLTextElementPool() {
 	BeforeParagraphElement = new ZLTextSpecialElement(ZLTextElement::BEFORE_PARAGRAPH_ELEMENT);
 	AfterParagraphElement = new ZLTextSpecialElement(ZLTextElement::AFTER_PARAGRAPH_ELEMENT);
 	EmptyLineElement = new ZLTextSpecialElement(ZLTextElement::EMPTY_LINE_ELEMENT);
+	LineBreakElement = new ZLTextSpecialElement(ZLTextElement::LINE_BREAK_ELEMENT);
 	StartReversedSequenceElement = new ZLTextSpecialElement(ZLTextElement::START_REVERSED_SEQUENCE_ELEMENT);
 	EndReversedSequenceElement = new ZLTextSpecialElement(ZLTextElement::END_REVERSED_SEQUENCE_ELEMENT);
 }
@@ -69,6 +71,7 @@ ZLTextElementPool::~ZLTextElementPool() {
 	delete BeforeParagraphElement;
 	delete AfterParagraphElement;
 	delete EmptyLineElement;
+	delete LineBreakElement;
 	delete StartReversedSequenceElement;
 	delete EndReversedSequenceElement;
 }
diff --git a/fbreader/fbreader/zlibrary/text/src/area/ZLTextParagraphCursor.h b/fbreader/fbreader/zlibrary/text/src/area/ZLTextParagraphCursor.h
index 93385c8..23a1f60 100644
--- a/fbreader/fbreader/zlibrary/text/src/area/ZLTextParagraphCursor.h
+++ b/fbreader/fbreader/zlibrary/text/src/area/ZLTextParagraphCursor.h
@@ -62,6 +62,7 @@ public:
 	ZLTextElement *BeforeParagraphElement;
 	ZLTextElement *AfterParagraphElement;
 	ZLTextElement *EmptyLineElement;
+	ZLTextElement *LineBreakElement;
 	ZLTextElement *StartReversedSequenceElement;
 	ZLTextElement *EndReversedSequenceElement;
 
diff --git a/fbreader/fbreader/zlibrary/text/src/model/ZLTextModel.cpp b/fbreader/fbreader/zlibrary/text/src/model/ZLTextModel.cpp
index 99cb00b..e7878a1 100644
--- a/fbreader/fbreader/zlibrary/text/src/model/ZLTextModel.cpp
+++ b/fbreader/fbreader/zlibrary/text/src/model/ZLTextModel.cpp
@@ -214,24 +214,40 @@ void ZLTextModel::addControl(ZLTextKind textKind, bool isStart) {
 }
 
 void ZLTextModel::addControl(const ZLTextStyleEntry &entry) {
-	int len = sizeof(int) + 5 + ZLTextStyleEntry::NUMBER_OF_LENGTHS * (sizeof(short) + 1);
+	int len = sizeof(int) + 2;
+	if (entry.myMask & ((1 << ZLTextStyleEntry::NUMBER_OF_LENGTHS) - 1)) {
+		for (int i = 0; i < ZLTextStyleEntry::NUMBER_OF_LENGTHS; ++i) {
+			if (entry.myMask & (1 << i)) {
+				len += (sizeof(short) + 1);
+			}
+		}
+	}
+	if (entry.opacitySupported()) ++len;
+	if (entry.alignmentTypeSupported()) ++len;
+	if (entry.supportedFontModifier()) ++len;
+	if (entry.fontSizeSupported()) ++len;
 	if (entry.fontFamilySupported()) {
 		len += entry.fontFamily().length() + 1;
 	}
 	myLastEntryStart = myAllocator.allocate(len);
 	char *address = myLastEntryStart;
 	*address++ = ZLTextParagraphEntry::STYLE_ENTRY;
+	*address++ = entry.mySupportedFontModifier;
 	memcpy(address, &entry.myMask, sizeof(int));
 	address += sizeof(int);
-	for (int i = 0; i < ZLTextStyleEntry::NUMBER_OF_LENGTHS; ++i) {
-		*address++ = entry.myLengths[i].Unit;
-		memcpy(address, &entry.myLengths[i].Size, sizeof(short));
-		address += sizeof(short);
+	if (entry.myMask & ((1 << ZLTextStyleEntry::NUMBER_OF_LENGTHS) - 1)) {
+		for (int i = 0; i < ZLTextStyleEntry::NUMBER_OF_LENGTHS; ++i) {
+			if (entry.myMask & (1 << i)) {
+				*address++ = entry.myLengths[i].Unit;
+				memcpy(address, &entry.myLengths[i].Size, sizeof(short));
+				address += sizeof(short);
+			}
+		}
 	}
-	*address++ = entry.mySupportedFontModifier;
-	*address++ = entry.myFontModifier;
-	*address++ = entry.myAlignmentType;
-	*address++ = entry.myFontSizeMag;
+	if (entry.opacitySupported()) *address++ = entry.myOpacity;
+	if (entry.alignmentTypeSupported()) *address++ = entry.myAlignmentType;
+	if (entry.supportedFontModifier()) *address++ = entry.myFontModifier;
+	if (entry.fontSizeSupported()) *address++ = entry.myFontSizeMag;
 	if (entry.fontFamilySupported()) {
 		memcpy(address, entry.fontFamily().data(), entry.fontFamily().length());
 		address += entry.fontFamily().length();
@@ -267,3 +283,9 @@ void ZLTextModel::addBidiReset() {
 	*myLastEntryStart = ZLTextParagraphEntry::RESET_BIDI_ENTRY;
 	myParagraphs.back()->addEntry(myLastEntryStart);
 }
+
+void ZLTextModel::addLineBreak() {
+	myLastEntryStart = myAllocator.allocate(1);
+	*myLastEntryStart = ZLTextParagraphEntry::LINE_BREAK_ENTRY;
+	myParagraphs.back()->addEntry(myLastEntryStart);
+}
diff --git a/fbreader/fbreader/zlibrary/text/src/model/ZLTextModel.h b/fbreader/fbreader/zlibrary/text/src/model/ZLTextModel.h
index 2f4b580..9a9954c 100644
--- a/fbreader/fbreader/zlibrary/text/src/model/ZLTextModel.h
+++ b/fbreader/fbreader/zlibrary/text/src/model/ZLTextModel.h
@@ -72,6 +72,7 @@ public:
 	void addImage(const std::string &id, const ZLImageMap &imageMap, short vOffset);
 	void addFixedHSpace(unsigned char length);
 	void addBidiReset();
+	void addLineBreak();
 
 protected:
 	void addParagraphInternal(ZLTextParagraph *paragraph);
diff --git a/fbreader/fbreader/zlibrary/text/src/model/ZLTextParagraph.cpp b/fbreader/fbreader/zlibrary/text/src/model/ZLTextParagraph.cpp
index 95a9e4e..7df1f45 100644
--- a/fbreader/fbreader/zlibrary/text/src/model/ZLTextParagraph.cpp
+++ b/fbreader/fbreader/zlibrary/text/src/model/ZLTextParagraph.cpp
@@ -58,22 +58,39 @@ short ZLTextStyleEntry::length(Length name, const Metrics &metrics) const {
 }
 
 ZLTextStyleEntry::ZLTextStyleEntry(char *address) {
+	mySupportedFontModifier = *address++;
 	memcpy(&myMask, address, sizeof(int));
 	address += sizeof(int);
 	for (int i = 0; i < NUMBER_OF_LENGTHS; ++i) {
-		myLengths[i].Unit = (SizeUnit)*address++;
-		memcpy(&myLengths[i].Size, address, sizeof(short));
-		address += sizeof(short);
+		if (myMask & (1 << i)) {
+			myLengths[i].Unit = (SizeUnit)*address++;
+			memcpy(&myLengths[i].Size, address, sizeof(short));
+			address += sizeof(short);
+		}
+	}
+	if (opacitySupported()) {
+		myOpacity = *address++;
+	}
+	if (alignmentTypeSupported()) {
+		myAlignmentType = (ZLTextAlignmentType)*address++;
+	}
+	if (supportedFontModifier()) {
+		myFontModifier = *address++;
+	}
+	if (fontSizeSupported()) {
+		myFontSizeMag = (signed char)*address++;
 	}
-	mySupportedFontModifier = *address++;
-	myFontModifier = *address++;
-	myAlignmentType = (ZLTextAlignmentType)*address++;
-	myFontSizeMag = (signed char)*address++;
 	if (fontFamilySupported()) {
 		myFontFamily = address;
 	}
 }
 
+void ZLTextStyleEntry::reset() {
+	mySupportedFontModifier = 0;
+	myMask = 0;
+	myFontFamily.clear();
+}
+
 void ZLTextStyleEntry::apply(const ZLTextStyleEntry &entry) {
 	for (int i = 0; i < NUMBER_OF_LENGTHS; ++i) {
 		if (entry.lengthSupported((Length)i)) {
@@ -81,6 +98,9 @@ void ZLTextStyleEntry::apply(const ZLTextStyleEntry &entry) {
 			myMask |= 1 << i;
 		}
 	}
+	if (entry.opacitySupported()) {
+		setOpacity(entry.opacity());
+	}
 	if (entry.alignmentTypeSupported()) {
 		setAlignmentType(entry.alignmentType());
 	}
@@ -171,10 +191,21 @@ void ZLTextParagraph::Iterator::next() {
 			case ZLTextParagraphEntry::STYLE_ENTRY:
 			{
 				int mask;
-				memcpy(&mask, myPointer + 1, sizeof(int));
-				bool withFontFamily = (mask & ZLTextStyleEntry::SUPPORT_FONT_FAMILY) == ZLTextStyleEntry::SUPPORT_FONT_FAMILY;
-				myPointer += sizeof(int) + ZLTextStyleEntry::NUMBER_OF_LENGTHS * (sizeof(short) + 1) + 5;
-				if (withFontFamily) {
+				const unsigned char supportedFontModifier = myPointer[1];
+				memcpy(&mask, myPointer + 2, sizeof(int));
+				myPointer += sizeof(int) + 2;
+				if (mask & ((1 << ZLTextStyleEntry::NUMBER_OF_LENGTHS) - 1)) {
+					for (int i = 0; i < ZLTextStyleEntry::NUMBER_OF_LENGTHS; ++i) {
+						if (mask & (1 << i)) {
+							myPointer += (sizeof(short) + 1);
+						}
+					}
+				}
+				if (mask & ZLTextStyleEntry::SUPPORT_OPACITY) ++myPointer;
+				if (mask & ZLTextStyleEntry::SUPPORT_ALIGNMENT_TYPE) ++myPointer;
+				if (supportedFontModifier) ++myPointer;
+				if (mask & ZLTextStyleEntry::SUPPORT_FONT_SIZE) ++myPointer;
+				if (mask & ZLTextStyleEntry::SUPPORT_FONT_FAMILY) {
 					while (*myPointer != '\0') {
 						++myPointer;
 					}
@@ -186,6 +217,7 @@ void ZLTextParagraph::Iterator::next() {
 				myPointer += 2;
 				break;
 			case ZLTextParagraphEntry::RESET_BIDI_ENTRY:
+			case ZLTextParagraphEntry::LINE_BREAK_ENTRY:
 				++myPointer;
 				break;
 		}
diff --git a/fbreader/fbreader/zlibrary/text/src/model/ZLTextParagraph.h b/fbreader/fbreader/zlibrary/text/src/model/ZLTextParagraph.h
index 0b4059d..eaa0b5b 100644
--- a/fbreader/fbreader/zlibrary/text/src/model/ZLTextParagraph.h
+++ b/fbreader/fbreader/zlibrary/text/src/model/ZLTextParagraph.h
@@ -44,6 +44,7 @@ public:
 		STYLE_ENTRY = 5,
 		FIXED_HSPACE_ENTRY = 6,
 		RESET_BIDI_ENTRY = 7,
+		LINE_BREAK_ENTRY = 8
 	};
 
 protected:
@@ -93,10 +94,13 @@ private:
 
 public:
 	ZLTextStyleEntry();
+	ZLTextStyleEntry(const ZLTextStyleEntry &other);
 	ZLTextStyleEntry(char *address);
 	~ZLTextStyleEntry();
 
+	void reset();
 	void apply(const ZLTextStyleEntry &entry);
+	ZLTextStyleEntry &operator = (const ZLTextStyleEntry &other);
 
 	bool isEmpty() const;
 
@@ -104,6 +108,10 @@ public:
 	short length(Length name, const Metrics &metrics) const;
 	void setLength(Length name, short length, SizeUnit unit);
 
+	bool opacitySupported() const;
+	unsigned char opacity() const;
+	void setOpacity(unsigned char opacity);
+
 	bool alignmentTypeSupported() const;
 	ZLTextAlignmentType alignmentType() const;
 	void setAlignmentType(ZLTextAlignmentType alignmentType);
@@ -120,9 +128,12 @@ public:
 	const std::string &fontFamily() const;
 	void setFontFamily(const std::string &fontFamily);
 
-	static const int SUPPORT_ALIGNMENT_TYPE = 1 << NUMBER_OF_LENGTHS;
-	static const int SUPPORT_FONT_SIZE = 1 << (NUMBER_OF_LENGTHS + 1);
-	static const int SUPPORT_FONT_FAMILY = 1 << (NUMBER_OF_LENGTHS + 2);
+	enum {
+		SUPPORT_ALIGNMENT_TYPE = 1 << NUMBER_OF_LENGTHS,
+		SUPPORT_FONT_SIZE = 1 << (NUMBER_OF_LENGTHS + 1),
+		SUPPORT_FONT_FAMILY = 1 << (NUMBER_OF_LENGTHS + 2),
+		SUPPORT_OPACITY = 1 << (NUMBER_OF_LENGTHS + 3)
+	};
 
 private:
 	int myMask;
@@ -130,6 +141,7 @@ private:
 	LengthType myLengths[NUMBER_OF_LENGTHS];
 
 	ZLTextAlignmentType myAlignmentType;
+	unsigned char myOpacity;
 	unsigned char mySupportedFontModifier;
 	unsigned char myFontModifier;
 	signed char myFontSizeMag;
@@ -333,12 +345,15 @@ private:
 inline ZLTextParagraphEntry::ZLTextParagraphEntry() {}
 inline ZLTextParagraphEntry::~ZLTextParagraphEntry() {}
 
-inline ZLTextStyleEntry::ZLTextStyleEntry() : myMask(0), mySupportedFontModifier(0), myFontModifier(0) {}
+inline ZLTextStyleEntry::ZLTextStyleEntry() : myMask(0), mySupportedFontModifier(0) {}
+inline ZLTextStyleEntry::ZLTextStyleEntry(const ZLTextStyleEntry &other) : ZLTextParagraphEntry(), myMask(0), mySupportedFontModifier(0) { apply(other); }
+
 inline ZLTextStyleEntry::~ZLTextStyleEntry() {}
 
 inline ZLTextStyleEntry::Metrics::Metrics(int fontSize, int fontXHeight, int fullWidth, int fullHeight) : FontSize(fontSize), FontXHeight(fontXHeight), FullWidth(fullWidth), FullHeight(fullHeight) {}
 
 inline bool ZLTextStyleEntry::isEmpty() const { return myMask == 0 && mySupportedFontModifier == 0; }
+inline ZLTextStyleEntry &ZLTextStyleEntry::operator = (const ZLTextStyleEntry &other) { reset(); apply(other); return *this; }
 
 inline bool ZLTextStyleEntry::lengthSupported(Length name) const { return (myMask & (1 << name)) != 0; }
 inline void ZLTextStyleEntry::setLength(Length name, short length, SizeUnit unit) {
@@ -347,7 +362,11 @@ inline void ZLTextStyleEntry::setLength(Length name, short length, SizeUnit unit
 	myMask |= 1 << name;
 }
 
-inline bool ZLTextStyleEntry::alignmentTypeSupported() const { return (myMask & SUPPORT_ALIGNMENT_TYPE) == SUPPORT_ALIGNMENT_TYPE; }
+inline bool ZLTextStyleEntry::opacitySupported() const { return (myMask & SUPPORT_OPACITY) != 0; }
+inline unsigned char ZLTextStyleEntry::opacity() const { return myOpacity; }
+inline void ZLTextStyleEntry::setOpacity(unsigned char opacity) { myOpacity = opacity; myMask |= SUPPORT_OPACITY; }
+
+inline bool ZLTextStyleEntry::alignmentTypeSupported() const { return (myMask & SUPPORT_ALIGNMENT_TYPE) != 0; }
 inline ZLTextAlignmentType ZLTextStyleEntry::alignmentType() const { return myAlignmentType; }
 inline void ZLTextStyleEntry::setAlignmentType(ZLTextAlignmentType alignmentType) { myAlignmentType = alignmentType; myMask |= SUPPORT_ALIGNMENT_TYPE; }