]> git.lyx.org Git - lyx.git/blobdiff - src/output_xhtml.cpp
Account for old versions of Pygments
[lyx.git] / src / output_xhtml.cpp
index c4968d4a90226d51cbb625bc787394f1eab9c705..dca1d15e48ae06cb19482a907e5cd1aaf1ff4fa0 100644 (file)
@@ -4,7 +4,7 @@
  * Licence details can be found in the file COPYING.
  *
  * \author Richard Heck
- * 
+ *
  * This code is based upon output_docbook.cpp
  *
  * Full author contact details are available in file CREDITS.
@@ -18,6 +18,7 @@
 #include "buffer_funcs.h"
 #include "BufferParams.h"
 #include "Counters.h"
+#include "Font.h"
 #include "Layout.h"
 #include "OutputParams.h"
 #include "Paragraph.h"
 #include "Text.h"
 #include "TextClass.h"
 
-#include "support/lassert.h"
+#include "support/convert.h"
 #include "support/debug.h"
+#include "support/lassert.h"
 #include "support/lstrings.h"
+#include "support/textutils.h"
 
 #include <vector>
 
+// Uncomment to activate debugging code.
+// #define XHTML_DEBUG
+
 using namespace std;
 using namespace lyx::support;
 
@@ -40,84 +46,49 @@ namespace lyx {
 
 namespace html {
 
-docstring escapeChar(char_type c)
+docstring escapeChar(char_type c, XHTMLStream::EscapeSettings e)
 {
        docstring str;
-       switch (c) {
-       case ' ':
-               str += " ";
-               break;
-       case '&':
-               str += "&amp;";
-               break;
-       case '<':
-               str += "&lt;";
-               break;
-       case '>':
-               str += "&gt;";
-               break;
-       default:
+       switch (e) {
+       case XHTMLStream::ESCAPE_NONE:
                str += c;
                break;
+       case XHTMLStream::ESCAPE_ALL:
+               if (c == '<') {
+                       str += "&lt;";
+                       break;
+               } else if (c == '>') {
+                       str += "&gt;";
+                       break;
+               }
+       // fall through
+       case XHTMLStream::ESCAPE_AND:
+               if (c == '&')
+                       str += "&amp;";
+               else
+                       str     +=c ;
+               break;
        }
        return str;
 }
 
 
 // escape what needs escaping
-docstring htmlize(docstring const & str) {
+docstring htmlize(docstring const & str, XHTMLStream::EscapeSettings e)
+{
        odocstringstream d;
        docstring::const_iterator it = str.begin();
        docstring::const_iterator en = str.end();
        for (; it != en; ++it)
-               d << escapeChar(*it);
+               d << escapeChar(*it, e);
        return d.str();
 }
 
 
-string escapeChar(char c)
+docstring escapeChar(char c, XHTMLStream::EscapeSettings e)
 {
-       string str;
-       switch (c) {
-       case ' ':
-               str += " ";
-               break;
-       case '&':
-               str += "&amp;";
-               break;
-       case '<':
-               str += "&lt;";
-               break;
-       case '>':
-               str += "&gt;";
-               break;
-       default:
-               str += c;
-               break;
-       }
-       return str;
-}
-
-
-// escape what needs escaping
-string htmlize(string const & str) {
-       ostringstream d;
-       string::const_iterator it = str.begin();
-       string::const_iterator en = str.end();
-       for (; it != en; ++it)
-               d << escapeChar(*it);
-       return d.str();
-}
-
-
-string cleanAttr(string const & str)
-{
-       string newname;
-       string::const_iterator it = str.begin();
-       string::const_iterator en = str.end();
-       for (; it != en; ++it)
-               newname += isalnum(*it) ? *it : '_';
-       return newname; 
+       LATTEST(static_cast<unsigned char>(c) < 0x80);
+       return escapeChar(static_cast<char_type>(c), e);
 }
 
 
@@ -126,119 +97,349 @@ docstring cleanAttr(docstring const & str)
        docstring newname;
        docstring::const_iterator it = str.begin();
        docstring::const_iterator en = str.end();
-       for (; it != en; ++it)
-               if (isalnum(*it))
-                       newname += *it;
-               else
-                       newname += '_';
-       return newname; 
+       for (; it != en; ++it) {
+               char_type const c = *it;
+               newname += isAlnumASCII(c) ? c : char_type('_');
+       }
+       return newname;
 }
 
 
-bool isFontTag(string const & s)
+docstring StartTag::writeTag() const
 {
-       return s == "em" || s == "strong"; // others?
+       docstring output = '<' + from_utf8(tag_);
+       if (!attr_.empty())
+               output += ' ' + html::htmlize(from_utf8(attr_), XHTMLStream::ESCAPE_NONE);
+       output += ">";
+       return output;
 }
-} // namespace html
 
 
-docstring StartTag::asTag() const
+docstring StartTag::writeEndTag() const
 {
-       string output = "<" + tag_;
-       if (!attr_.empty())
-               output += " " + html::htmlize(attr_);
-       output += ">";
+       string output = "</" + tag_ + ">";
        return from_utf8(output);
 }
 
 
-docstring StartTag::asEndTag() const
+bool StartTag::operator==(FontTag const & rhs) const
 {
-       string output = "</" + tag_ + ">";
-       return from_utf8(output);
+       return rhs == *this;
 }
 
 
-docstring EndTag::asEndTag() const
+docstring EndTag::writeEndTag() const
 {
        string output = "</" + tag_ + ">";
        return from_utf8(output);
 }
 
 
-docstring CompTag::asTag() const
+ParTag::ParTag(std::string const & tag, std::string attr,
+       std::string const & parid)
+  : StartTag(tag)
 {
-       string output = "<" + tag_;
+       if (!parid.empty())
+               attr += " id='" + parid + "'";
+       attr_ = attr;
+}
+
+
+docstring CompTag::writeTag() const
+{
+       docstring output = '<' + from_utf8(tag_);
        if (!attr_.empty())
-               output += " " + html::htmlize(attr_);
+               output += ' ' + html::htmlize(from_utf8(attr_), XHTMLStream::ESCAPE_NONE);
        output += " />";
-       return from_utf8(output);
+       return output;
 }
 
 
+
+namespace {
+
+string fontToTag(html::FontTypes type)
+{
+       switch(type) {
+       case FT_EMPH:
+               return "em";
+       case FT_BOLD:
+               return "b";
+       case FT_NOUN:
+               return "dfn";
+       case FT_UBAR:
+       case FT_WAVE:
+       case FT_DBAR:
+               return "u";
+       case FT_SOUT:
+       case FT_XOUT:
+               return "del";
+       case FT_ITALIC:
+               return "i";
+       case FT_UPRIGHT:
+       case FT_SLANTED:
+       case FT_SMALLCAPS:
+       case FT_ROMAN:
+       case FT_SANS:
+       case FT_TYPE:
+       case FT_SIZE_TINY:
+       case FT_SIZE_SCRIPT:
+       case FT_SIZE_FOOTNOTE:
+       case FT_SIZE_SMALL:
+       case FT_SIZE_NORMAL:
+       case FT_SIZE_LARGE:
+       case FT_SIZE_LARGER:
+       case FT_SIZE_LARGEST:
+       case FT_SIZE_HUGE:
+       case FT_SIZE_HUGER:
+       case FT_SIZE_INCREASE:
+       case FT_SIZE_DECREASE:
+               return "span";
+       }
+       // kill warning
+       return "";
+}
+
+string fontToAttribute(html::FontTypes type)
+{
+       switch(type) {
+       case FT_EMPH:
+       case FT_BOLD:
+               return "";
+       case FT_NOUN:
+               return "class='lyxnoun'";
+       case FT_UBAR:
+               return "";
+       case FT_DBAR:
+               return "class='dline'";
+       case FT_XOUT:
+       case FT_SOUT:
+               return "class='strikeout'";
+       case FT_WAVE:
+               return "class='wline'";
+       case FT_ITALIC:
+               return "";
+       case FT_UPRIGHT:
+               return "style='font-style:normal;'";
+       case FT_SLANTED:
+               return "style='font-style:oblique;'";
+       case FT_SMALLCAPS:
+               return "style='font-variant:small-caps;'";
+       case FT_ROMAN:
+               return "style='font-family:serif;'";
+       case FT_SANS:
+               return "style='font-family:sans-serif;'";
+       case FT_TYPE:
+               return "style='font-family:monospace;'";
+       case FT_SIZE_TINY:
+       case FT_SIZE_SCRIPT:
+       case FT_SIZE_FOOTNOTE:
+               return "style='font-size:x-small;'";
+       case FT_SIZE_SMALL:
+               return "style='font-size:small;'";
+       case FT_SIZE_NORMAL:
+               return "style='font-size:normal;'";
+       case FT_SIZE_LARGE:
+               return "style='font-size:large;'";
+       case FT_SIZE_LARGER:
+       case FT_SIZE_LARGEST:
+               return "style='font-size:x-large;'";
+       case FT_SIZE_HUGE:
+       case FT_SIZE_HUGER:
+               return "style='font-size:xx-large;'";
+       case FT_SIZE_INCREASE:
+               return "style='font-size:larger;'";
+       case FT_SIZE_DECREASE:
+               return "style='font-size:smaller;'";
+       }
+       // kill warning
+       return "";
+}
+
+} // end anonymous namespace
+
+
+FontTag::FontTag(FontTypes type)
+  : StartTag(fontToTag(type), fontToAttribute(type)), font_type_(type)
+{}
+
+
+bool FontTag::operator==(StartTag const & tag) const
+{
+       FontTag const * const ftag = tag.asFontTag();
+       if (!ftag)
+               return false;
+       return (font_type_ == ftag->font_type_);
+}
+
+
+EndFontTag::EndFontTag(FontTypes type)
+         : EndTag(fontToTag(type)), font_type_(type)
+{}
+
+} // namespace html
+
+
+
 ////////////////////////////////////////////////////////////////
 ///
 /// XHTMLStream
 ///
 ////////////////////////////////////////////////////////////////
 
-XHTMLStream::XHTMLStream(odocstream & os) 
-               : os_(os), nextraw_(false)
+XHTMLStream::XHTMLStream(odocstream & os)
+  : os_(os), escape_(ESCAPE_ALL)
 {}
 
 
-void XHTMLStream::cr() 
+#ifdef XHTML_DEBUG
+void XHTMLStream::dumpTagStack(string const & msg)
 {
-       // tabs?
-       os_ << from_ascii("\n");
+       *this << html::CR();
+       writeError(msg);
+       *this << html::CR();
+       writeError("Tag Stack");
+       TagDeque::const_reverse_iterator it = tag_stack_.rbegin();
+       TagDeque::const_reverse_iterator en = tag_stack_.rend();
+       for (; it != en; ++it) {
+               writeError(it->get()->tag_);
+       }
+       writeError("End Tag Stack");
+       *this << html::CR();
+       writeError("Pending Tags");
+       it = pending_tags_.rbegin();
+       en = pending_tags_.rend();
+       for (; it != en; ++it) {
+               writeError(it->get()->tag_);
+       }
+       writeError("End Pending Tags");
+       *this << html::CR();
 }
+#endif
 
 
-void XHTMLStream::writeError(std::string const & s)
+void XHTMLStream::writeError(std::string const & s) const
 {
        LYXERR0(s);
-       os_ << from_utf8("<!-- Output Error: " + s + " -->");
+       os_ << from_utf8("<!-- Output Error: " + s + " -->\n");
+}
+
+
+namespace {
+       // an illegal tag for internal use
+       static html::StartTag const parsep_tag("&LyX_parsep_tag&");
 }
 
 
 bool XHTMLStream::closeFontTags()
 {
+       if (isTagPending(parsep_tag))
+               // we haven't had any content
+               return true;
+
+#ifdef XHTML_DEBUG
+       dumpTagStack("Beging Close Font Tags");
+#endif
+
+       // this may be a useless check, since we ought at least to have
+       // the parsep_tag. but it can't hurt too much to be careful.
        if (tag_stack_.empty())
                return true;
+
        // first, we close any open font tags we can close
-       StartTag curtag = tag_stack_.back();
-       while (html::isFontTag(curtag.tag_)) {
-               os_ << curtag.asEndTag();
+       TagPtr curtag = tag_stack_.back();
+       while (curtag->asFontTag()) {
+               os_ << curtag->writeEndTag();
                tag_stack_.pop_back();
-               if (tag_stack_.empty())
-                       // this probably shouldn't happen, since then the
-                       // font tags weren't in any other tag. but that
-                       // problem will likely be caught elsewhere.
-                       return true;
+               // this shouldn't happen, since then the font tags
+               // weren't in any other tag.
+               LASSERT(!tag_stack_.empty(), return true);
                curtag = tag_stack_.back();
        }
-       // so we've hit a non-font tag. let's see if any of the
-       // remaining tags are font tags.
-       TagStack::const_iterator it = tag_stack_.begin();
-       TagStack::const_iterator en = tag_stack_.end();
-       bool noFontTags = true;
+
+#ifdef XHTML_DEBUG
+       dumpTagStack("End Close Font Tags");
+#endif
+       
+       if (*curtag == parsep_tag)
+               return true;
+
+       // so we've hit a non-font tag.
+       writeError("Tags still open in closeFontTags(). Probably not a problem,\n"
+                  "but you might want to check these tags:");
+       TagDeque::const_reverse_iterator it = tag_stack_.rbegin();
+       TagDeque::const_reverse_iterator const en = tag_stack_.rend();
        for (; it != en; ++it) {
-               if (html::isFontTag(it->tag_)) {
-                       writeError("Font tag `" + it->tag_ + "' still open in closeFontTags().");
-                       noFontTags = false;
+               if (**it == parsep_tag)
+                       break;
+               writeError((*it)->tag_);
+       }
+       return false;
+}
+
+
+void XHTMLStream::startDivision(bool keep_empty)
+{
+       pending_tags_.push_back(makeTagPtr(html::StartTag(parsep_tag)));
+       if (keep_empty)
+               clearTagDeque();
+#ifdef XHTML_DEBUG
+       dumpTagStack("StartDivision");
+#endif
+}
+
+
+void XHTMLStream::endDivision()
+{
+       if (isTagPending(parsep_tag)) {
+               // this case is normal. it just means we didn't have content,
+               // so the parsep_tag never got moved onto the tag stack.
+               while (!pending_tags_.empty()) {
+                       // clear all pending tags up to and including the parsep tag.
+                       // note that we work from the back, because we want to get rid
+                       // of everything that hasn't been used.
+                       TagPtr const cur_tag = pending_tags_.back();
+                       pending_tags_.pop_back();
+                       if (*cur_tag == parsep_tag)
+                               break;
                }
+
+#ifdef XHTML_DEBUG
+               dumpTagStack("EndDivision");
+#endif
+               
+               return;
+       }
+
+       if (!isTagOpen(parsep_tag)) {
+               writeError("No division separation tag found in endDivision().");
+               return;
+       }
+
+       // this case is also normal, if the parsep tag is the last one
+       // on the stack. otherwise, it's an error.
+       while (!tag_stack_.empty()) {
+               TagPtr const cur_tag = tag_stack_.back();
+               tag_stack_.pop_back();
+               if (*cur_tag == parsep_tag)
+                       break;
+               writeError("Tag `" + cur_tag->tag_ + "' still open at end of paragraph. Closing.");
+               os_ << cur_tag->writeEndTag();
        }
-       return noFontTags;
+
+#ifdef XHTML_DEBUG
+       dumpTagStack("EndDivision");
+#endif
 }
 
 
 void XHTMLStream::clearTagDeque()
 {
        while (!pending_tags_.empty()) {
-               StartTag const & tag = pending_tags_.front();
-               // tabs?
-               os_ << tag.asTag();
-               cr();
+               TagPtr const tag = pending_tags_.front();
+               if (*tag != parsep_tag)
+                       // tabs?
+                       os_ << tag->writeTag();
                tag_stack_.push_back(tag);
                pending_tags_.pop_front();
        }
@@ -248,11 +449,8 @@ void XHTMLStream::clearTagDeque()
 XHTMLStream & XHTMLStream::operator<<(docstring const & d)
 {
        clearTagDeque();
-       if (nextraw_) {
-               os_ << d;
-               nextraw_ = false;
-       } else
-               os_ << html::htmlize(d);
+       os_ << html::htmlize(d, escape_);
+       escape_ = ESCAPE_ALL;
        return *this;
 }
 
@@ -261,11 +459,8 @@ XHTMLStream & XHTMLStream::operator<<(const char * s)
 {
        clearTagDeque();
        docstring const d = from_ascii(s);
-       if (nextraw_) {
-               os_ << d;
-               nextraw_ = false;
-       } else
-               os_ << html::htmlize(d);
+       os_ << html::htmlize(d, escape_);
+       escape_ = ESCAPE_ALL;
        return *this;
 }
 
@@ -273,162 +468,233 @@ XHTMLStream & XHTMLStream::operator<<(const char * s)
 XHTMLStream & XHTMLStream::operator<<(char_type c)
 {
        clearTagDeque();
-       if (nextraw_) {
-               os_ << c;
-               nextraw_ = false;
-       } else
-               os_ << html::escapeChar(c);
+       os_ << html::escapeChar(c, escape_);
+       escape_ = ESCAPE_ALL;
+       return *this;
+}
+
+
+XHTMLStream & XHTMLStream::operator<<(char c)
+{
+       clearTagDeque();
+       os_ << html::escapeChar(c, escape_);
+       escape_ = ESCAPE_ALL;
+       return *this;
+}
+
+
+XHTMLStream & XHTMLStream::operator<<(int i)
+{
+       clearTagDeque();
+       os_ << i;
+       escape_ = ESCAPE_ALL;
        return *this;
 }
 
 
-XHTMLStream & XHTMLStream::operator<<(NextRaw const &) 
-{ 
-       nextraw_ = true; 
+XHTMLStream & XHTMLStream::operator<<(EscapeSettings e)
+{
+       escape_ = e;
        return *this;
 }
 
 
-XHTMLStream & XHTMLStream::operator<<(StartTag const & tag) 
+XHTMLStream & XHTMLStream::operator<<(html::StartTag const & tag)
 {
        if (tag.tag_.empty())
                return *this;
-       pending_tags_.push_back(tag);
+       pending_tags_.push_back(makeTagPtr(tag));
        if (tag.keepempty_)
                clearTagDeque();
        return *this;
 }
 
 
-XHTMLStream & XHTMLStream::operator<<(CompTag const & tag) 
+XHTMLStream & XHTMLStream::operator<<(html::ParTag const & tag)
+{
+       if (tag.tag_.empty())
+               return *this;
+       pending_tags_.push_back(makeTagPtr(tag));
+       return *this;
+}
+
+
+XHTMLStream & XHTMLStream::operator<<(html::CompTag const & tag)
 {
        if (tag.tag_.empty())
                return *this;
        clearTagDeque();
+       os_ << tag.writeTag();
+       *this << html::CR();
+       return *this;
+}
+
+
+XHTMLStream & XHTMLStream::operator<<(html::FontTag const & tag)
+{
+       if (tag.tag_.empty())
+               return *this;
+       pending_tags_.push_back(makeTagPtr(tag));
+       return *this;
+}
+
+
+XHTMLStream & XHTMLStream::operator<<(html::CR const &)
+{
        // tabs?
-       os_ << tag.asTag();
-       cr();
+       os_ << from_ascii("\n");
        return *this;
 }
 
 
-bool XHTMLStream::isTagOpen(string const & stag)
+bool XHTMLStream::isTagOpen(html::StartTag const & stag) const
 {
-       TagStack::const_iterator sit = tag_stack_.begin();
-       TagStack::const_iterator const sen = tag_stack_.end();
+       TagDeque::const_iterator sit = tag_stack_.begin();
+       TagDeque::const_iterator const sen = tag_stack_.end();
        for (; sit != sen; ++sit)
-               // we could check for the
-               if (sit->tag_ == stag) 
+               if (**sit == stag)
+                       return true;
+       return false;
+}
+
+
+bool XHTMLStream::isTagOpen(html::EndTag const & etag) const
+{
+       TagDeque::const_iterator sit = tag_stack_.begin();
+       TagDeque::const_iterator const sen = tag_stack_.end();
+       for (; sit != sen; ++sit)
+               if (etag == **sit)
+                       return true;
+       return false;
+}
+
+
+bool XHTMLStream::isTagPending(html::StartTag const & stag) const
+{
+       TagDeque::const_iterator sit = pending_tags_.begin();
+       TagDeque::const_iterator const sen = pending_tags_.end();
+       for (; sit != sen; ++sit)
+               if (**sit == stag)
                        return true;
        return false;
 }
 
 
 // this is complicated, because we want to make sure that
-// everything is properly nested. the code ought to make 
+// everything is properly nested. the code ought to make
 // sure of that, but we won't assert (yet) if we run into
 // a problem. we'll just output error messages and try our
 // best to make things work.
-XHTMLStream & XHTMLStream::operator<<(EndTag const & etag)
+XHTMLStream & XHTMLStream::operator<<(html::EndTag const & etag)
 {
        if (etag.tag_.empty())
                return *this;
-       // first make sure we're not closing an empty tag
+
+       // if this tag is pending, we can simply discard it.
        if (!pending_tags_.empty()) {
-               StartTag const & stag = pending_tags_.back();
-               if (etag.tag_ == stag.tag_)  {
-                       // we have <tag></tag>, so we discard it and remove it 
+
+               if (etag == *pending_tags_.back()) {
+                       // we have <tag></tag>, so we discard it and remove it
                        // from the pending_tags_.
                        pending_tags_.pop_back();
                        return *this;
                }
+
                // there is a pending tag that isn't the one we are trying
-               // to close. 
+               // to close.
+
                // is this tag itself pending?
                // non-const iterators because we may call erase().
                TagDeque::iterator dit = pending_tags_.begin();
                TagDeque::iterator const den = pending_tags_.end();
                for (; dit != den; ++dit) {
-                       if (dit->tag_ == etag.tag_) {
+                       if (etag == **dit) {
                                // it was pending, so we just erase it
-                               writeError("Tried to close pending tag `" + etag.tag_ 
+                               writeError("Tried to close pending tag `" + etag.tag_
                                        + "' when other tags were pending. Last pending tag is `"
-                                       + pending_tags_.back().tag_ + "'. Tag discarded.");
+                                       + to_utf8(pending_tags_.back()->writeTag())
+                                       + "'. Tag discarded.");
                                pending_tags_.erase(dit);
                                return *this;
                        }
                }
                // so etag isn't itself pending. is it even open?
-               if (!isTagOpen(etag.tag_)) {
-                       writeError("Tried to close `" + etag.tag_ 
+               if (!isTagOpen(etag)) {
+                       writeError("Tried to close `" + etag.tag_
                                 + "' when tag was not open. Tag discarded.");
                        return *this;
                }
                // ok, so etag is open.
-               // our strategy will be as below: we will do what we need to 
+               // our strategy will be as below: we will do what we need to
                // do to close this tag.
-               string estr = "Closing tag `" + etag.tag_ 
+               string estr = "Closing tag `" + etag.tag_
                        + "' when other tags are pending. Discarded pending tags:\n";
                for (dit = pending_tags_.begin(); dit != den; ++dit)
-                       estr += dit->tag_ + "\n";
+                       estr += to_utf8(html::htmlize((*dit)->writeTag(), XHTMLStream::ESCAPE_ALL)) + "\n";
                writeError(estr);
                // clear the pending tags...
                pending_tags_.clear();
                // ...and then just fall through.
        }
 
+       // make sure there are tags to be closed
+       if (tag_stack_.empty()) {
+               writeError("Tried to close `" + etag.tag_
+                        + "' when no tags were open!");
+               return *this;
+       }
+
        // is the tag we are closing the last one we opened?
-       if (etag.tag_ == tag_stack_.back().tag_) {
+       if (etag == *tag_stack_.back()) {
                // output it...
-               os_ << etag.asEndTag();
+               os_ << etag.writeEndTag();
                // ...and forget about it
                tag_stack_.pop_back();
                return *this;
-       } 
-       
-       // we are trying to close a tag other than the one last opened. 
+       }
+
+       // we are trying to close a tag other than the one last opened.
        // let's first see if this particular tag is still open somehow.
-       if (!isTagOpen(etag.tag_)) {
-               writeError("Tried to close `" + etag.tag_ 
+       if (!isTagOpen(etag)) {
+               writeError("Tried to close `" + etag.tag_
                        + "' when tag was not open. Tag discarded.");
                return *this;
        }
-       
+
        // so the tag was opened, but other tags have been opened since
        // and not yet closed.
        // if it's a font tag, though...
-       if (html::isFontTag(etag.tag_)) {
+       if (etag.asFontTag()) {
                // it won't be a problem if the other tags open since this one
                // are also font tags.
-               TagStack::const_reverse_iterator rit = tag_stack_.rbegin();
-               TagStack::const_reverse_iterator ren = tag_stack_.rend();
+               TagDeque::const_reverse_iterator rit = tag_stack_.rbegin();
+               TagDeque::const_reverse_iterator ren = tag_stack_.rend();
                for (; rit != ren; ++rit) {
-                       if (rit->tag_ == etag.tag_)
+                       if (etag == **rit)
                                break;
-                       if (!html::isFontTag(rit->tag_)) {
+                       if (!(*rit)->asFontTag()) {
                                // we'll just leave it and, presumably, have to close it later.
-                               writeError("Unable to close font tag `" + etag.tag_ 
-                                       + "' due to open non-font tag `" + rit->tag_ + "'.");
+                               writeError("Unable to close font tag `" + etag.tag_
+                                       + "' due to open non-font tag `" + (*rit)->tag_ + "'.");
                                return *this;
                        }
                }
-               
+
                // so we have e.g.:
                //    <em>this is <strong>bold
                // and are being asked to closed em. we want:
                //    <em>this is <strong>bold</strong></em><strong>
                // first, we close the intervening tags...
-               StartTag curtag = tag_stack_.back();
+               TagPtr curtag = tag_stack_.back();
                // ...remembering them in a stack.
-               TagStack fontstack;
-               while (curtag.tag_ != etag.tag_) {
-                       os_ << curtag.asEndTag();
+               TagDeque fontstack;
+               while (etag != *curtag) {
+                       os_ << curtag->writeEndTag();
                        fontstack.push_back(curtag);
                        tag_stack_.pop_back();
                        curtag = tag_stack_.back();
                }
-               // now close our tag...
-               os_ << etag.asEndTag();
+               os_ << etag.writeEndTag();
                tag_stack_.pop_back();
 
                // ...and restore the other tags.
@@ -438,71 +704,102 @@ XHTMLStream & XHTMLStream::operator<<(EndTag const & etag)
                        pending_tags_.push_back(*rit);
                return *this;
        }
-       
+
        // it wasn't a font tag.
-       // so other tags were opened before this one and not properly closed. 
-       // so we'll close them, too. that may cause other issues later, but it 
+       // so other tags were opened before this one and not properly closed.
+       // so we'll close them, too. that may cause other issues later, but it
        // at least guarantees proper nesting.
-       writeError("Closing tag `" + etag.tag_ 
+       writeError("Closing tag `" + etag.tag_
                + "' when other tags are open, namely:");
-       StartTag curtag = tag_stack_.back();
-       while (curtag.tag_ != etag.tag_) {
-               writeError(curtag.tag_);
-               os_ << curtag.asEndTag();
+       TagPtr curtag = tag_stack_.back();
+       while (etag != *curtag) {
+               writeError(curtag->tag_);
+               if (*curtag != parsep_tag)
+                       os_ << curtag->writeEndTag();
                tag_stack_.pop_back();
                curtag = tag_stack_.back();
        }
        // curtag is now the one we actually want.
-       os_ << curtag.asEndTag();
+       os_ << curtag->writeEndTag();
        tag_stack_.pop_back();
-       
+
        return *this;
 }
 
 // End code for XHTMLStream
 
 namespace {
-       
+
 // convenience functions
 
-inline void openTag(XHTMLStream & xs, Layout const & lay)
+inline void openParTag(XHTMLStream & xs, Layout const & lay,
+                       std::string parlabel)
 {
-       xs << StartTag(lay.htmltag(), lay.htmlattr());
+       xs << html::ParTag(lay.htmltag(), lay.htmlattr(), parlabel);
+}
+
+
+void openParTag(XHTMLStream & xs, Layout const & lay,
+                ParagraphParameters const & params,
+                std::string parlabel)
+{
+       // FIXME Are there other things we should handle here?
+       string const align = alignmentToCSS(params.align());
+       if (align.empty()) {
+               openParTag(xs, lay, parlabel);
+               return;
+       }
+       string attrs = lay.htmlattr() + " style='text-align: " + align + ";'";
+       xs << html::ParTag(lay.htmltag(), attrs, parlabel);
 }
 
 
 inline void closeTag(XHTMLStream & xs, Layout const & lay)
 {
-       xs << EndTag(lay.htmltag());
+       xs << html::EndTag(lay.htmltag());
 }
 
 
 inline void openLabelTag(XHTMLStream & xs, Layout const & lay)
 {
-       xs << StartTag(lay.htmllabeltag(), lay.htmllabelattr());
+       xs << html::StartTag(lay.htmllabeltag(), lay.htmllabelattr());
 }
 
 
 inline void closeLabelTag(XHTMLStream & xs, Layout const & lay)
 {
-       xs << EndTag(lay.htmllabeltag());
+       xs << html::EndTag(lay.htmllabeltag());
 }
 
 
 inline void openItemTag(XHTMLStream & xs, Layout const & lay)
 {
-       xs << StartTag(lay.htmlitemtag(), lay.htmlitemattr(), true);
+       xs << html::StartTag(lay.htmlitemtag(), lay.htmlitemattr(), true);
+}
+
+
+void openItemTag(XHTMLStream & xs, Layout const & lay,
+             ParagraphParameters const & params)
+{
+       // FIXME Are there other things we should handle here?
+       string const align = alignmentToCSS(params.align());
+       if (align.empty()) {
+               openItemTag(xs, lay);
+               return;
+       }
+       string attrs = lay.htmlattr() + " style='text-align: " + align + ";'";
+       xs << html::StartTag(lay.htmlitemtag(), attrs);
 }
 
 
 inline void closeItemTag(XHTMLStream & xs, Layout const & lay)
 {
-       xs << EndTag(lay.htmlitemtag());
+       xs << html::EndTag(lay.htmlitemtag());
 }
 
 // end of convenience functions
 
-ParagraphList::const_iterator searchParagraphHtml(
+ParagraphList::const_iterator findLastParagraph(
        ParagraphList::const_iterator p,
        ParagraphList::const_iterator const & pend)
 {
@@ -513,8 +810,8 @@ ParagraphList::const_iterator searchParagraphHtml(
 }
 
 
-ParagraphList::const_iterator searchEnvironmentHtml(
-               ParagraphList::const_iterator const pstart,
+ParagraphList::const_iterator findEndOfEnvironment(
+               ParagraphList::const_iterator const pstart,
                ParagraphList::const_iterator const & pend)
 {
        ParagraphList::const_iterator p = pstart;
@@ -527,15 +824,19 @@ ParagraphList::const_iterator searchEnvironmentHtml(
                // it can happen. We pretend that it's just at lowest depth.
                if (style.latextype == LATEX_COMMAND)
                        return p;
+
                // If depth is down, we're done
                if (p->params().depth() < depth)
                        return p;
+
                // If depth is up, we're not done
                if (p->params().depth() > depth)
                        continue;
-               // Now we know we are at the same depth
-               if (style.latextype == LATEX_PARAGRAPH
-                   || style.latexname() != bstyle.latexname())
+
+               // FIXME I am not sure about the first check.
+               // Surely we *could* have different layouts that count as
+               // LATEX_PARAGRAPH, right?
+               if (style.latextype == LATEX_PARAGRAPH || style != bstyle)
                        return p;
        }
        return pend;
@@ -554,40 +855,74 @@ ParagraphList::const_iterator makeParagraphs(Buffer const & buf,
        for (; par != pend; ++par) {
                Layout const & lay = par->layout();
                if (!lay.counter.empty())
-                       buf.params().documentClass().counters().step(lay.counter);
+                       buf.masterBuffer()->params().
+                           documentClass().counters().step(lay.counter, OutputUpdate);
+
                // FIXME We should see if there's a label to be output and
                // do something with it.
                if (par != pbegin)
-                       xs.cr();
-
-               // If we are already in a paragraph, and this is the first one, then we
-               // do not want to open the paragraph tag.
-               // we also do not want to open it if the current layout does not permit
-               // multiple paragraphs.
-               bool const opened = runparams.html_make_pars &&
-                       (par != pbegin || !runparams.html_in_par);
-               if (opened)
-                       openTag(xs, lay);
-               docstring const deferred = 
-                       par->simpleLyXHTMLOnePar(buf, xs, runparams, text.outerFont(distance(begin, par)));
+                       xs << html::CR();
+
+               // We want to open the paragraph tag if:
+               //   (i) the current layout permits multiple paragraphs
+               //  (ii) we are either not already inside a paragraph (HTMLIsBlock) OR
+               //       we are, but this is not the first paragraph
+               //
+               // But there is also a special case, and we first see whether we are in it.
+               // We do not want to open the paragraph tag if this paragraph contains
+               // only one item, and that item is "inline", i.e., not HTMLIsBlock (such 
+               // as a branch). On the other hand, if that single item has a font change
+               // applied to it, then we still do need to open the paragraph.
+               //
+               // Obviously, this is very fragile. The main reason we need to do this is
+               // because of branches, e.g., a branch that contains an entire new section.
+               // We do not really want to wrap that whole thing in a <div>...</div>.
+               bool special_case = false;
+               Inset const * specinset = par->size() == 1 ? par->getInset(0) : 0;
+               if (specinset && !specinset->getLayout().htmlisblock()) {
+                       Layout const & style = par->layout();
+                       FontInfo const first_font = style.labeltype == LABEL_MANUAL ?
+                                               style.labelfont : style.font;
+                       FontInfo const our_font =
+                               par->getFont(buf.masterBuffer()->params(), 0,
+                                      text.outerFont(distance(begin, par))).fontInfo();
+                       if (first_font == our_font)
+                               special_case = true;
+               }
+
+               bool const open_par = runparams.html_make_pars
+                       && (!runparams.html_in_par || par != pbegin)
+                       && !special_case;
 
                // We want to issue the closing tag if either:
                //   (i)  We opened it, and either html_in_par is false,
                //        or we're not in the last paragraph, anyway.
-               //   (ii) We didn't open it and html_in_par is true, 
+               //   (ii) We didn't open it and html_in_par is true,
                //        but we are in the first par, and there is a next par.
                ParagraphList::const_iterator nextpar = par;
-               nextpar++;
-               bool const needclose = 
-                       (opened && (!runparams.html_in_par || nextpar != pend))
-                       || (!opened && runparams.html_in_par && par == pbegin && nextpar != pend);
-               if (needclose) {
+               ++nextpar;
+               bool const close_par =
+                       (open_par && (!runparams.html_in_par || nextpar != pend))
+                       || (!open_par && runparams.html_in_par && par == pbegin && nextpar != pend);
+
+               if (open_par) {
+                       // We do not issue the paragraph id if we are doing 
+                       // this for the TOC (or some similar purpose)
+                       openParTag(xs, lay, par->params(),
+                                  runparams.for_toc ? "" : par->magicLabel());
+               }
+
+               docstring const deferred = par->simpleLyXHTMLOnePar(buf, xs, 
+                       runparams, text.outerFont(distance(begin, par)),
+                       open_par, close_par);
+
+               if (close_par) {
                        closeTag(xs, lay);
-                       xs.cr();
+                       xs << html::CR();
                }
+
                if (!deferred.empty()) {
-                       xs << XHTMLStream::NextRaw() << deferred;
-                       xs.cr();
+                       xs << XHTMLStream::ESCAPE_NONE << deferred << html::CR();
                }
        }
        return pend;
@@ -599,16 +934,18 @@ ParagraphList::const_iterator makeBibliography(Buffer const & buf,
                                OutputParams const & runparams,
                                Text const & text,
                                ParagraphList::const_iterator const & pbegin,
-                               ParagraphList::const_iterator const & pend) 
-{
-       xs << StartTag("h2", "class='bibliography'");
-       xs << pbegin->layout().labelstring(false);
-       xs << EndTag("h2");
-       xs.cr();
-       xs << StartTag("div", "class='bibliography'");
-       xs.cr();
+                               ParagraphList::const_iterator const & pend)
+{
+       // FIXME XHTML
+       // Use TextClass::htmlTOCLayout() to figure out how we should look.
+       xs << html::StartTag("h2", "class='bibliography'")
+          << pbegin->layout().labelstring(false)
+          << html::EndTag("h2")
+          << html::CR()
+          << html::StartTag("div", "class='bibliography'")
+          << html::CR();
        makeParagraphs(buf, xs, runparams, text, pbegin, pend);
-       xs << EndTag("div");
+       xs << html::EndTag("div");
        return pend;
 }
 
@@ -619,13 +956,13 @@ bool isNormalEnv(Layout const & lay)
            || lay.latextype == LATEX_BIB_ENVIRONMENT;
 }
 
-       
-ParagraphList::const_iterator makeEnvironmentHtml(Buffer const & buf,
+
+ParagraphList::const_iterator makeEnvironment(Buffer const & buf,
                                              XHTMLStream & xs,
                                              OutputParams const & runparams,
                                              Text const & text,
                                              ParagraphList::const_iterator const & pbegin,
-                                             ParagraphList::const_iterator const & pend) 
+                                             ParagraphList::const_iterator const & pend)
 {
        ParagraphList::const_iterator const begin = text.paragraphs().begin();
        ParagraphList::const_iterator par = pbegin;
@@ -633,8 +970,8 @@ ParagraphList::const_iterator makeEnvironmentHtml(Buffer const & buf,
        depth_type const origdepth = pbegin->params().depth();
 
        // open tag for this environment
-       openTag(xs, bstyle);
-       xs.cr();
+       openParTag(xs, bstyle, pbegin->magicLabel());
+       xs << html::CR();
 
        // we will on occasion need to remember a layout from before.
        Layout const * lastlay = 0;
@@ -647,72 +984,79 @@ ParagraphList::const_iterator makeEnvironmentHtml(Buffer const & buf,
                // FIXME There may be a bug here about user defined enumeration
                // types. If so, then we'll need to take the counter and add "i",
                // "ii", etc, as with enum.
-               Counters & cnts = buf.params().documentClass().counters();
+               Counters & cnts = buf.masterBuffer()->params().documentClass().counters();
                docstring const & cntr = style.counter;
-               if (!style.counter.empty() 
-                   && (par == pbegin || !isNormalEnv(style)) 
+               if (!style.counter.empty()
+                   && (par == pbegin || !isNormalEnv(style))
                                && cnts.hasCounter(cntr)
                )
-                       cnts.step(cntr);
+                       cnts.step(cntr, OutputUpdate);
                ParagraphList::const_iterator send;
-               // this will be positive, if we want to skip the initial word
-               // (if it's been taken for the label).
-               pos_type sep = 0;
 
                switch (style.latextype) {
                case LATEX_ENVIRONMENT:
                case LATEX_LIST_ENVIRONMENT:
                case LATEX_ITEM_ENVIRONMENT: {
-                       // There are two possiblities in this case. 
-                       // One is that we are still in the environment in which we 
+                       // There are two possiblities in this case.
+                       // One is that we are still in the environment in which we
                        // started---which we will be if the depth is the same.
                        if (par->params().depth() == origdepth) {
-                               LASSERT(bstyle == style, /* */);
+                               LATTEST(bstyle == style);
                                if (lastlay != 0) {
                                        closeItemTag(xs, *lastlay);
                                        lastlay = 0;
                                }
-                               if (isNormalEnv(style)) {
-                                       // in this case, we print the label only for the first 
-                                       // paragraph (as in a theorem).
-                                       openItemTag(xs, style);
-                                       if (par == pbegin && style.htmllabeltag() != "NONE") {
-                                               docstring const lbl = 
-                                                               pbegin->expandLabel(style, buf.params(), false);
-                                               if (!lbl.empty()) {
+
+                               // this will be positive, if we want to skip the
+                               // initial word (if it's been taken for the label).
+                               pos_type sep = 0;
+                               bool const labelfirst = style.htmllabelfirst();
+                               if (!labelfirst)
+                                       openItemTag(xs, style, par->params());
+
+                               // label output
+                               if (style.labeltype != LABEL_NO_LABEL &&
+                                   style.htmllabeltag() != "NONE") {
+                                       if (isNormalEnv(style)) {
+                                               // in this case, we print the label only for the first
+                                               // paragraph (as in a theorem).
+                                               if (par == pbegin) {
+                                                       docstring const lbl =
+                                                                       pbegin->params().labelString();
+                                                       if (!lbl.empty()) {
+                                                               openLabelTag(xs, style);
+                                                               xs << lbl;
+                                                               closeLabelTag(xs, style);
+                                                       }
+                                                       xs << html::CR();
+                                               }
+                                       } else { // some kind of list
+                                               if (style.labeltype == LABEL_MANUAL) {
                                                        openLabelTag(xs, style);
-                                                       xs << lbl;
+                                                       sep = par->firstWordLyXHTML(xs, runparams);
                                                        closeLabelTag(xs, style);
+                                                       xs << html::CR();
+                                               }
+                                               else {
+                                                       openLabelTag(xs, style);
+                                                       xs << par->params().labelString();
+                                                       closeLabelTag(xs, style);
+                                                       xs << html::CR();
                                                }
-                                               xs.cr();
-                                       }
-                               }       else { // some kind of list
-                                       bool const labelfirst = style.htmllabelfirst();
-                                       if (!labelfirst)
-                                               openItemTag(xs, style);
-                                       if (style.labeltype == LABEL_MANUAL
-                                           && style.htmllabeltag() != "NONE") {
-                                               openLabelTag(xs, style);
-                                               sep = par->firstWordLyXHTML(xs, runparams);
-                                               closeLabelTag(xs, style);
-                                               xs.cr();
-                                       }
-                                       else if (style.labeltype != LABEL_NO_LABEL
-                                                && style.htmllabeltag() != "NONE") {
-                                               openLabelTag(xs, style);
-                                               xs << par->expandLabel(style, buf.params(), false);
-                                               closeLabelTag(xs, style);
-                                               xs.cr();
                                        }
-                                       if (labelfirst)
-                                               openItemTag(xs, style);
-                               }
-                               par->simpleLyXHTMLOnePar(buf, xs, runparams, 
-                                       text.outerFont(distance(begin, par)), false, sep);
+                               } // end label output
+
+                               if (labelfirst)
+                                       openItemTag(xs, style, par->params());
+
+                               docstring deferred = par->simpleLyXHTMLOnePar(buf, xs, runparams,
+                                       text.outerFont(distance(begin, par)), true, true, sep);
+                               xs << XHTMLStream::ESCAPE_NONE << deferred;
                                ++par;
-                               // We may not want to close the tag yet, in particular,
-                               // if we're not at the end...
-                               if (par != pend 
+
+                               // We may not want to close the tag yet, in particular:
+                               // If we're not at the end...
+                               if (par != pend
                                        //  and are doing items...
                                         && !isNormalEnv(style)
                                         // and if the depth has changed...
@@ -722,18 +1066,18 @@ ParagraphList::const_iterator makeEnvironmentHtml(Buffer const & buf,
                                        lastlay = &style;
                                } else
                                        closeItemTag(xs, style);
-                               xs.cr();
+                               xs << html::CR();
                        }
                        // The other possibility is that the depth has increased, in which
                        // case we need to recurse.
                        else {
-                               send = searchEnvironmentHtml(par, pend);
-                               par = makeEnvironmentHtml(buf, xs, runparams, text, par, send);
+                               send = findEndOfEnvironment(par, pend);
+                               par = makeEnvironment(buf, xs, runparams, text, par, send);
                        }
                        break;
                }
                case LATEX_PARAGRAPH:
-                       send = searchParagraphHtml(par, pend);
+                       send = findLastParagraph(par, pend);
                        par = makeParagraphs(buf, xs, runparams, text, par, send);
                        break;
                // Shouldn't happen
@@ -752,28 +1096,43 @@ ParagraphList::const_iterator makeEnvironmentHtml(Buffer const & buf,
        if (lastlay != 0)
                closeItemTag(xs, *lastlay);
        closeTag(xs, bstyle);
-       xs.cr();
+       xs << html::CR();
        return pend;
 }
 
 
 void makeCommand(Buffer const & buf,
-                                         XHTMLStream & xs,
-                                         OutputParams const & runparams,
-                                         Text const & text,
-                                         ParagraphList::const_iterator const & pbegin)
+                XHTMLStream & xs,
+                OutputParams const & runparams,
+                Text const & text,
+                ParagraphList::const_iterator const & pbegin)
 {
        Layout const & style = pbegin->layout();
        if (!style.counter.empty())
-               buf.params().documentClass().counters().step(style.counter);
+               buf.masterBuffer()->params().
+                   documentClass().counters().step(style.counter, OutputUpdate);
 
-       openTag(xs, style);
+       bool const make_parid = !runparams.for_toc && runparams.html_make_pars;
+       
+       if (style.labeltype == LABEL_ABOVE)
+               xs << html::StartTag("div")
+                  << pbegin->params().labelString()
+                  << html::EndTag("div");
+       else if (style.labeltype == LABEL_CENTERED)
+               xs << html::StartTag("div", "style = \"text-align: center;\"")
+                  << pbegin->params().labelString()
+                  << html::EndTag("div");
+
+       openParTag(xs, style, pbegin->params(),
+                  make_parid ? pbegin->magicLabel() : "");
 
        // Label around sectioning number:
        // FIXME Probably need to account for LABEL_MANUAL
-       if (style.labeltype != LABEL_NO_LABEL) {
+       if (style.labeltype != LABEL_NO_LABEL &&
+           style.labeltype != LABEL_ABOVE &&
+           style.labeltype != LABEL_CENTERED ) {
                openLabelTag(xs, style);
-               xs << pbegin->expandLabel(style, buf.params(), false);
+               xs << pbegin->params().labelString();
                closeLabelTag(xs, style);
                // Otherwise the label might run together with the text
                xs << from_ascii(" ");
@@ -783,7 +1142,7 @@ void makeCommand(Buffer const & buf,
        pbegin->simpleLyXHTMLOnePar(buf, xs, runparams,
                        text.outerFont(distance(begin, pbegin)));
        closeTag(xs, style);
-       xs.cr();
+       xs << html::CR();
 }
 
 } // end anonymous namespace
@@ -795,20 +1154,41 @@ void xhtmlParagraphs(Text const & text,
                       OutputParams const & runparams)
 {
        ParagraphList const & paragraphs = text.paragraphs();
-       ParagraphList::const_iterator par = paragraphs.begin();
-       ParagraphList::const_iterator pend = paragraphs.end();
+       if (runparams.par_begin == runparams.par_end) {
+               runparams.par_begin = 0;
+               runparams.par_end = paragraphs.size();
+       }
+       pit_type bpit = runparams.par_begin;
+       pit_type const epit = runparams.par_end;
+       LASSERT(bpit < epit,
+               { xs << XHTMLStream::ESCAPE_NONE << "<!-- XHTML output error! -->\n"; return; });
 
        OutputParams ourparams = runparams;
-       while (par != pend) {
+       ParagraphList::const_iterator const pend =
+               (epit == (int) paragraphs.size()) ?
+                       paragraphs.end() : paragraphs.constIterator(epit);
+       while (bpit < epit) {
+               ParagraphList::const_iterator par = paragraphs.constIterator(bpit);
+               if (par->params().startOfAppendix()) {
+                       // We want to reset the counter corresponding to toplevel sectioning
+                       Layout const & lay =
+                               buf.masterBuffer()->params().documentClass().getTOCLayout();
+                       docstring const cnt = lay.counter;
+                       if (!cnt.empty()) {
+                               Counters & cnts =
+                                       buf.masterBuffer()->params().documentClass().counters();
+                               cnts.reset(cnt);
+                       }
+               }
                Layout const & style = par->layout();
-               ParagraphList::const_iterator lastpar = par;
+               ParagraphList::const_iterator const lastpar = par;
                ParagraphList::const_iterator send;
 
                switch (style.latextype) {
                case LATEX_COMMAND: {
                        // The files with which we are working never have more than
                        // one paragraph in a command structure.
-                       // FIXME 
+                       // FIXME
                        // if (ourparams.html_in_par)
                        //   fix it so we don't get sections inside standard, e.g.
                        // note that we may then need to make runparams not const, so we
@@ -823,27 +1203,41 @@ void xhtmlParagraphs(Text const & text,
                case LATEX_LIST_ENVIRONMENT:
                case LATEX_ITEM_ENVIRONMENT: {
                        // FIXME Same fix here.
-                       send = searchEnvironmentHtml(par, pend);
-                       par = makeEnvironmentHtml(buf, xs, ourparams, text, par, send);
+                       send = findEndOfEnvironment(par, pend);
+                       par = makeEnvironment(buf, xs, ourparams, text, par, send);
                        break;
                }
                case LATEX_BIB_ENVIRONMENT: {
                        // FIXME Same fix here.
-                       send = searchEnvironmentHtml(par, pend);
+                       send = findEndOfEnvironment(par, pend);
                        par = makeBibliography(buf, xs, ourparams, text, par, send);
                        break;
                }
                case LATEX_PARAGRAPH:
-                       send = searchParagraphHtml(par, pend);
+                       send = findLastParagraph(par, pend);
                        par = makeParagraphs(buf, xs, ourparams, text, par, send);
                        break;
                }
-               // FIXME??
-               // makeEnvironment may process more than one paragraphs and bypass pend
-               if (distance(lastpar, par) >= distance(lastpar, pend))
-                       break;
+               bpit += distance(lastpar, par);
        }
 }
 
 
+string alignmentToCSS(LyXAlignment align)
+{
+       switch (align) {
+       case LYX_ALIGN_BLOCK:
+               // we are NOT going to use text-align: justify!!
+       case LYX_ALIGN_LEFT:
+               return "left";
+       case LYX_ALIGN_RIGHT:
+               return "right";
+       case LYX_ALIGN_CENTER:
+               return "center";
+       default:
+               break;
+       }
+       return "";
+}
+
 } // namespace lyx