]> git.lyx.org Git - lyx.git/blobdiff - src/paragraph.C
Get rid of lyxstring, remove usage of STRCONV.
[lyx.git] / src / paragraph.C
index 8b4a2e1ed7318eb3d8f53cc12a48ad04344ee07f..730b7d0159785ab38a5dd73d88407faae3e7740b 100644 (file)
-/* This file is part of
- * ======================================================
+/**
+ * \file paragraph.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
  *
- *           LyX, The Document Processor
+ * \author Asger Alstrup
+ * \author Lars Gullik Bjønnes
+ * \author Jean-Marc Lasgouttes
+ * \author Angus Leeming
+ * \author John Levon
+ * \author André Pönitz
+ * \author Dekel Tsur
+ * \author Jürgen Vigna
  *
- *           Copyright 1995 Matthias Ettrich
- *           Copyright 1995-2001 The LyX Team.
- *
- * ====================================================== */
+ * Full author contact details are available in file CREDITS.
+ */
 
 #include <config.h>
 
-#ifdef __GNUG__
-#pragma implementation
-#endif
-
 #include "paragraph.h"
 #include "paragraph_pimpl.h"
-#include "lyxrc.h"
-#include "layout.h"
-#include "language.h"
-#include "tex-strings.h"
+
 #include "buffer.h"
 #include "bufferparams.h"
-#include "debug.h"
-#include "texrow.h"
-#include "BufferView.h"
 #include "encoding.h"
-#include "ParameterStruct.h"
+#include "debug.h"
 #include "gettext.h"
+#include "language.h"
+#include "latexrunparams.h"
+#include "lyxrc.h"
+#include "lyxrow.h"
+#include "texrow.h"
+#include "vspace.h"
 
-#include "insets/insetinclude.h"
-#include "insets/insetbib.h"
-#include "insets/insettext.h"
+#include "insets/insetbibitem.h"
+#include "insets/insetoptarg.h"
 
-#include "support/filetools.h"
 #include "support/lstrings.h"
-#include "support/lyxmanip.h"
-#include "support/FileInfo.h"
-#include "support/LAssert.h"
 #include "support/textutils.h"
-
-#include <algorithm>
-#include <fstream>
-#include <csignal>
-
-using std::ostream;
-using std::endl;
-using std::fstream;
-using std::ios;
-using std::lower_bound;
-using std::upper_bound;
-using std::reverse;
+#include "support/std_sstream.h"
 
 using lyx::pos_type;
 
-// this is a bad idea, but how can Paragraph find its buffer to get
-// parameters? (JMarc)
-
-extern string bibitemWidest(Buffer const *);
-
-// this is a minibuffer
-
-namespace {
-
-char minibuffer_char;
-LyXFont minibuffer_font;
-Inset * minibuffer_inset;
-
-} // namespace anon
+using lyx::support::contains;
+using lyx::support::subst;
 
+using std::endl;
 
-extern BufferView * current_view;
+using std::ostream;
+using std::ostringstream;
 
 
 Paragraph::Paragraph()
-       : pimpl_(new Paragraph::Pimpl(this))
+       : y(0), pimpl_(new Paragraph::Pimpl(this))
 {
-#ifndef NO_NEXT
-       next_ = 0;
-       previous_ = 0;
-#endif
        enumdepth = 0;
        itemdepth = 0;
-       bibkey = 0; // ale970302
        params().clear();
 }
 
 
-#ifndef NO_NEXT
-// This constructor inserts the new paragraph in a list.
-Paragraph::Paragraph(Paragraph * par)
-       : pimpl_(new Paragraph::Pimpl(this))
+Paragraph::Paragraph(Paragraph const & lp)
+       : y(0), pimpl_(new Paragraph::Pimpl(*lp.pimpl_, this))
 {
        enumdepth = 0;
        itemdepth = 0;
+       // this is because of the dummy layout of the paragraphs that
+       // follow footnotes
+       layout_ = lp.layout();
 
-       // double linked list begin
-       next_ = par->next_;
-       if (next_)
-               next_->previous_ = this;
-       previous_ = par;
-       previous_->next_ = this;
-       // end
-
-       bibkey = 0; // ale970302
-       params().clear();
+       // copy everything behind the break-position to the new paragraph
+       insetlist = lp.insetlist;
+       InsetList::iterator it = insetlist.begin();
+       InsetList::iterator end = insetlist.end();
+       for (; it != end; ++it) {
+               // currently we hold Inset*, not InsetBase*
+               it->inset = static_cast<InsetOld*>(it->inset->clone().release());
+       }
 }
-#endif
 
 
-Paragraph::Paragraph(Paragraph const & lp, bool same_ids)
-       : pimpl_(new Paragraph::Pimpl(*lp.pimpl_, this, same_ids))
+void Paragraph::operator=(Paragraph const & lp)
 {
-       enumdepth = 0;
-       itemdepth = 0;
-#ifndef NO_NEXT
-       next_     = 0;
-       previous_ = 0;
-#endif
+       // needed as we will destroy the pimpl_ before copying it
+       if (&lp != this)
+               return;
+
+       lyxerr << "Paragraph::operator=()" << endl;
+
+       delete pimpl_;
+       pimpl_ = new Pimpl(*lp.pimpl_, this);
+
+       enumdepth = lp.enumdepth;
+       itemdepth = lp.itemdepth;
        // this is because of the dummy layout of the paragraphs that
        // follow footnotes
        layout_ = lp.layout();
 
-       // ale970302
-       if (lp.bibkey) {
-               bibkey = static_cast<InsetBibKey *>
-                       (lp.bibkey->clone(*current_view->buffer()));
-       } else {
-               bibkey = 0;
-       }
-
        // copy everything behind the break-position to the new paragraph
        insetlist = lp.insetlist;
        InsetList::iterator it = insetlist.begin();
        InsetList::iterator end = insetlist.end();
        for (; it != end; ++it) {
-               it.setInset(it.getInset()->clone(*current_view->buffer(),
-                                                same_ids));
-               // tell the new inset who is the boss now
-               it.getInset()->parOwner(this);
+               it->inset = static_cast<InsetOld*>(it->inset->clone().release());
        }
 }
 
-
 // the destructor removes the new paragraph from the list
 Paragraph::~Paragraph()
 {
-#ifndef NO_NEXT
-       if (previous_)
-               previous_->next_ = next_;
-       if (next_)
-               next_->previous_ = previous_;
-#endif
-
-       // ale970302
-       delete bibkey;
-
        delete pimpl_;
        //
        //lyxerr << "Paragraph::paragraph_id = "
@@ -163,9 +115,9 @@ Paragraph::~Paragraph()
 }
 
 
-void Paragraph::writeFile(Buffer const * buf, ostream & os,
+void Paragraph::write(Buffer const & buf, ostream & os,
                          BufferParams const & bparams,
-                         depth_type dth) const
+                         depth_type dth) const
 {
        // The beginning or end of a deeper (i.e. nested) area?
        if (dth != params().depth()) {
@@ -183,81 +135,30 @@ void Paragraph::writeFile(Buffer const * buf, ostream & os,
        }
 
        // First write the layout
-       os << "\n\\layout " << layout()->name() << "\n";
-
-       // Maybe some vertical spaces.
-       if (params().spaceTop().kind() != VSpace::NONE)
-               os << "\\added_space_top "
-                  << params().spaceTop().asLyXCommand() << " ";
-       if (params().spaceBottom().kind() != VSpace::NONE)
-               os << "\\added_space_bottom "
-                  << params().spaceBottom().asLyXCommand() << " ";
+       os << "\n\\begin_layout " << layout()->name() << '\n';
 
-       // Maybe the paragraph has special spacing
-       params().spacing().writeFile(os, true);
-
-       // The labelwidth string used in lists.
-       if (!params().labelWidthString().empty())
-               os << "\\labelwidthstring "
-                  << params().labelWidthString() << '\n';
-
-       // Lines above or below?
-       if (params().lineTop())
-               os << "\\line_top ";
-       if (params().lineBottom())
-               os << "\\line_bottom ";
-
-       // Pagebreaks above or below?
-       if (params().pagebreakTop())
-               os << "\\pagebreak_top ";
-       if (params().pagebreakBottom())
-               os << "\\pagebreak_bottom ";
-
-       // Start of appendix?
-       if (params().startOfAppendix())
-               os << "\\start_of_appendix ";
-
-       // Noindent?
-       if (params().noindent())
-               os << "\\noindent ";
-
-       // Do we have a manual left indent?
-       if (!params().leftIndent().zero())
-               os << "\\leftindent " << params().leftIndent().asString() << " ";
-
-       // Alignment?
-       if (params().align() != LYX_ALIGN_LAYOUT) {
-               int h = 0;
-               switch (params().align()) {
-               case LYX_ALIGN_LEFT: h = 1; break;
-               case LYX_ALIGN_RIGHT: h = 2; break;
-               case LYX_ALIGN_CENTER: h = 3; break;
-               default: h = 0; break;
-               }
-               os << "\\align " << string_align[h] << " ";
-       }
-
-       // bibitem  ale970302
-       if (bibkey)
-               bibkey->write(buf, os);
+       params().write(os);
 
        LyXFont font1(LyXFont::ALL_INHERIT, bparams.language);
 
+       Change running_change = Change(Change::UNCHANGED);
+       lyx::time_type const curtime(lyx::current_time());
+
        int column = 0;
        for (pos_type i = 0; i < size(); ++i) {
                if (!i) {
-                       os << "\n";
+                       os << '\n';
                        column = 0;
                }
 
+               Change change = pimpl_->lookupChangeFull(i);
+               Changes::lyxMarkChange(os, column, curtime, running_change, change);
+               running_change = change;
+
                // Write font changes
                LyXFont font2 = getFontSettings(bparams, i);
                if (font2 != font1) {
-#ifndef INHERIT_LANGUAGE
                        font2.lyxWriteChanges(font1, os);
-#else
-                       font2.lyxWriteChanges(font1, bparams.language, os);
-#endif
                        column = 0;
                        font1 = font2;
                }
@@ -266,7 +167,7 @@ void Paragraph::writeFile(Buffer const * buf, ostream & os,
                switch (c) {
                case META_INSET:
                {
-                       Inset const * inset = getInset(i);
+                       InsetOld const * inset = getInset(i);
                        if (inset)
                                if (inset->directWrite()) {
                                        // international char, let it write
@@ -281,14 +182,6 @@ void Paragraph::writeFile(Buffer const * buf, ostream & os,
                                }
                }
                break;
-               case META_NEWLINE:
-                       os << "\n\\newline \n";
-                       column = 0;
-                       break;
-               case META_HFILL:
-                       os << "\n\\hfill \n";
-                       column = 0;
-                       break;
                case '\\':
                        os << "\n\\backslash \n";
                        column = 0;
@@ -298,12 +191,12 @@ void Paragraph::writeFile(Buffer const * buf, ostream & os,
                                os << ".\n";
                                column = 0;
                        } else
-                               os << ".";
+                               os << '.';
                        break;
                default:
                        if ((column > 70 && c == ' ')
                            || column > 79) {
-                               os << "\n";
+                               os << '\n';
                                column = 0;
                        }
                        // this check is to amend a bug. LyX sometimes
@@ -318,9 +211,16 @@ void Paragraph::writeFile(Buffer const * buf, ostream & os,
                }
        }
 
-       // now write the next paragraph
-       if (next_)
-               next_->writeFile(buf, os, bparams, dth);
+       // to make reading work properly
+       if (!size()) {
+               running_change = pimpl_->lookupChange(0);
+               Changes::lyxMarkChange(os, column, curtime,
+                       Change(Change::UNCHANGED), running_change);
+       }
+       Changes::lyxMarkChange(os, column, curtime,
+               running_change, Change(Change::UNCHANGED));
+
+       os << "\n\\end_layout\n";
 }
 
 
@@ -330,71 +230,21 @@ void Paragraph::validate(LaTeXFeatures & features) const
 }
 
 
-// First few functions needed for cut and paste and paragraph breaking.
-void Paragraph::copyIntoMinibuffer(Buffer const & buffer, pos_type pos) const
-{
-       BufferParams bparams = buffer.params;
-
-       minibuffer_char = getChar(pos);
-       minibuffer_font = getFontSettings(bparams, pos);
-       minibuffer_inset = 0;
-       if (minibuffer_char == Paragraph::META_INSET) {
-               if (getInset(pos)) {
-                       minibuffer_inset = getInset(pos)->clone(buffer);
-               } else {
-                       minibuffer_inset = 0;
-                       minibuffer_char = ' ';
-                       // This reflects what GetInset() does (ARRae)
-               }
-       }
-}
-
-
-void Paragraph::cutIntoMinibuffer(BufferParams const & bparams, pos_type pos)
+void Paragraph::eraseIntern(lyx::pos_type pos)
 {
-       minibuffer_char = getChar(pos);
-       minibuffer_font = getFontSettings(bparams, pos);
-       minibuffer_inset = 0;
-       if (minibuffer_char == Paragraph::META_INSET) {
-               if (getInset(pos)) {
-                       // the inset is not in a paragraph anymore
-                       minibuffer_inset = insetlist.release(pos);
-                       minibuffer_inset->parOwner(0);
-               } else {
-                       minibuffer_inset = 0;
-                       minibuffer_char = ' ';
-                       // This reflects what GetInset() does (ARRae)
-               }
-
-       }
-
-       // Erase(pos); now the caller is responsible for that.
+       pimpl_->eraseIntern(pos);
 }
 
 
-bool Paragraph::insertFromMinibuffer(pos_type pos)
+bool Paragraph::erase(pos_type pos)
 {
-       if (minibuffer_char == Paragraph::META_INSET) {
-               if (!insetAllowed(minibuffer_inset->lyxCode())) {
-                       return false;
-               }
-               insertInset(pos, minibuffer_inset, minibuffer_font);
-       } else {
-               LyXFont f = minibuffer_font;
-               if (!checkInsertChar(f)) {
-                       return false;
-               }
-               insertChar(pos, minibuffer_char, f);
-       }
-       return true;
+       return pimpl_->erase(pos);
 }
 
-// end of minibuffer
-
 
-void Paragraph::erase(pos_type pos)
+int Paragraph::erase(pos_type start, pos_type end)
 {
-       pimpl_->erase(pos);
+       return pimpl_->erase(start, end);
 }
 
 
@@ -408,53 +258,49 @@ bool Paragraph::checkInsertChar(LyXFont & font)
 
 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c)
 {
-       LyXFont const f(LyXFont::ALL_INHERIT);
-       insertChar(pos, c, f);
+       insertChar(pos, c, LyXFont(LyXFont::ALL_INHERIT));
 }
 
 
 void Paragraph::insertChar(pos_type pos, Paragraph::value_type c,
-                          LyXFont const & font)
+                          LyXFont const & font, Change change)
 {
-       pimpl_->insertChar(pos, c, font);
+       pimpl_->insertChar(pos, c, font, change);
 }
 
 
-void Paragraph::insertInset(pos_type pos, Inset * inset)
+void Paragraph::insertInset(pos_type pos, InsetOld * inset)
 {
-       LyXFont const f(LyXFont::ALL_INHERIT);
-       insertInset(pos, inset, f);
+       insertInset(pos, inset, LyXFont(LyXFont::ALL_INHERIT));
 }
 
 
-void Paragraph::insertInset(pos_type pos, Inset * inset, LyXFont const & font)
+void Paragraph::insertInset(pos_type pos, InsetOld * inset,
+       LyXFont const & font, Change change)
 {
-       pimpl_->insertInset(pos, inset, font);
+       pimpl_->insertInset(pos, inset, font, change);
 }
 
 
-bool Paragraph::insetAllowed(Inset::Code code)
+bool Paragraph::insetAllowed(InsetOld::Code code)
 {
        //lyxerr << "Paragraph::InsertInsetAllowed" << endl;
-
        if (pimpl_->inset_owner)
                return pimpl_->inset_owner->insetAllowed(code);
        return true;
 }
 
 
-Inset * Paragraph::getInset(pos_type pos)
+InsetOld * Paragraph::getInset(pos_type pos)
 {
-       lyx::Assert(pos < size());
-
+       BOOST_ASSERT(pos < size());
        return insetlist.get(pos);
 }
 
 
-Inset const * Paragraph::getInset(pos_type pos) const
+InsetOld const * Paragraph::getInset(pos_type pos) const
 {
-       lyx::Assert(pos < size());
-
+       BOOST_ASSERT(pos < size());
        return insetlist.get(pos);
 }
 
@@ -463,28 +309,38 @@ Inset const * Paragraph::getInset(pos_type pos) const
 LyXFont const Paragraph::getFontSettings(BufferParams const & bparams,
                                         pos_type pos) const
 {
-       lyx::Assert(pos <= size());
+       BOOST_ASSERT(pos <= size());
 
        Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
        Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
-       for (; cit != end; ++cit) {
+       for (; cit != end; ++cit)
                if (cit->pos() >= pos)
                        break;
-       }
 
-       LyXFont retfont;
-       if (cit != end) {
-               retfont = cit->font();
-       } else if (pos == size() && !empty()) {
-               retfont = getFontSettings(bparams, pos - 1);
-       } else
-               retfont = LyXFont(LyXFont::ALL_INHERIT, getParLanguage(bparams));
-#ifdef INHERIT_LANGUAGE
-       if (retfont.language() == inherit_language)
-               retfont.setLanguage(bparams.language);
-#endif
+       if (cit != end)
+               return cit->font();
+
+       if (pos == size() && !empty())
+               return getFontSettings(bparams, pos - 1);
 
-       return retfont;
+       return LyXFont(LyXFont::ALL_INHERIT, getParLanguage(bparams));
+}
+
+
+lyx::pos_type Paragraph::getEndPosOfFontSpan(lyx::pos_type pos) const
+{
+       BOOST_ASSERT(pos <= size());
+
+       Pimpl::FontList::const_iterator cit = pimpl_->fontlist.begin();
+       Pimpl::FontList::const_iterator end = pimpl_->fontlist.end();
+       for (; cit != end; ++cit)
+               if (cit->pos() >= pos)
+                       return cit->pos();
+
+       // This should not happen, but if so, we take no chances.
+       //lyxerr << "Paragraph::getEndPosOfFontSpan: This should not happen!"
+       //      << endl;
+       return pos;
 }
 
 
@@ -503,55 +359,49 @@ LyXFont const Paragraph::getFirstFontSettings() const
 // The difference is that this one is used for generating the LaTeX file,
 // and thus cosmetic "improvements" are disallowed: This has to deliver
 // the true picture of the buffer. (Asger)
-// If position is -1, we get the layout font of the paragraph.
-// If position is -2, we get the font of the manual label of the paragraph.
-LyXFont const Paragraph::getFont(BufferParams const & bparams,
-                                pos_type pos) const
+LyXFont const Paragraph::getFont(BufferParams const & bparams, pos_type pos,
+                                LyXFont const & outerfont) const
 {
-       lyx::Assert(pos >= 0);
+       BOOST_ASSERT(pos >= 0);
 
        LyXLayout_ptr const & lout = layout();
 
-       pos_type main_body = 0;
-       if (lout->labeltype == LABEL_MANUAL)
-               main_body = beginningOfMainBody();
+       pos_type const body_pos = beginningOfBody();
 
        LyXFont layoutfont;
-       if (pos < main_body)
+       if (pos < body_pos)
                layoutfont = lout->labelfont;
        else
                layoutfont = lout->font;
 
        LyXFont tmpfont = getFontSettings(bparams, pos);
-#ifndef INHERIT_LANGUAGE
        tmpfont.realize(layoutfont);
-#else
-       tmpfont.realize(layoutfont, bparams.language);
-#endif
+       tmpfont.realize(outerfont);
+       tmpfont.realize(bparams.getLyXTextClass().defaultfont());
 
-       return pimpl_->realizeFont(tmpfont, bparams);
+       return tmpfont;
 }
 
 
-LyXFont const Paragraph::getLabelFont(BufferParams const & bparams) const
+LyXFont const Paragraph::getLabelFont(BufferParams const & bparams,
+                                     LyXFont const & outerfont) const
 {
-       LyXLayout_ptr const & lout = layout();
-
-       LyXFont tmpfont = lout->labelfont;
+       LyXFont tmpfont = layout()->labelfont;
        tmpfont.setLanguage(getParLanguage(bparams));
-
-       return pimpl_->realizeFont(tmpfont, bparams);
+       tmpfont.realize(outerfont);
+       tmpfont.realize(bparams.getLyXTextClass().defaultfont());
+       return tmpfont;
 }
 
 
-LyXFont const Paragraph::getLayoutFont(BufferParams const & bparams) const
+LyXFont const Paragraph::getLayoutFont(BufferParams const & bparams,
+                                      LyXFont const & outerfont) const
 {
-       LyXLayout_ptr const & lout = layout();
-
-       LyXFont tmpfont = lout->font;
+       LyXFont tmpfont = layout()->font;
        tmpfont.setLanguage(getParLanguage(bparams));
-
-       return pimpl_->realizeFont(tmpfont, bparams);
+       tmpfont.realize(outerfont);
+       tmpfont.realize(bparams.getLyXTextClass().defaultfont());
+       return tmpfont;
 }
 
 
@@ -634,7 +484,7 @@ Paragraph::getUChar(BufferParams const & bparams, pos_type pos) const
 
 void Paragraph::setFont(pos_type pos, LyXFont const & font)
 {
-       lyx::Assert(pos <= size());
+       BOOST_ASSERT(pos <= size());
 
        // First, reduce font against layout/label font
        // Update: The SetCharFont() routine in text2.C already
@@ -695,138 +545,22 @@ void Paragraph::setFont(pos_type pos, LyXFont const & font)
 }
 
 
-#ifndef NO_NEXT
-void Paragraph::next(Paragraph * p)
-{
-       next_ = p;
-}
-
-
-// This function is able to hide closed footnotes.
-Paragraph * Paragraph::next()
-{
-       return next_;
-}
-
-
-Paragraph const * Paragraph::next() const
-{
-       return next_;
-}
-
-
-void Paragraph::previous(Paragraph * p)
-{
-       previous_ = p;
-}
-
-
-// This function is able to hide closed footnotes.
-Paragraph * Paragraph::previous()
+void Paragraph::makeSameLayout(Paragraph const & par)
 {
-       return previous_;
-}
-
-
-// This function is able to hide closed footnotes.
-Paragraph const * Paragraph::previous() const
-{
-       return previous_;
-}
-#endif
-
-
-void Paragraph::breakParagraph(BufferParams const & bparams,
-                                 pos_type pos,
-                                 int flag)
-{
-       // create a new paragraph
-       Paragraph * tmp = new Paragraph(this);
-       tmp->layout(bparams.getLyXTextClass().defaultLayout());
-       // remember to set the inset_owner
-       tmp->setInsetOwner(inInset());
-
-       // this is an idea for a more userfriendly layout handling, I will
-       // see what the users say
-
-       // layout stays the same with latex-environments
-       if (flag) {
-               tmp->layout(layout());
-               tmp->setLabelWidthString(params().labelWidthString());
-       }
-
-       bool isempty = (layout()->keepempty && empty());
-
-       if (!isempty && (size() > pos || empty() || flag == 2)) {
-               tmp->layout(layout());
-               tmp->params().align(params().align());
-               tmp->setLabelWidthString(params().labelWidthString());
-
-               tmp->params().lineBottom(params().lineBottom());
-               params().lineBottom(false);
-               tmp->params().pagebreakBottom(params().pagebreakBottom());
-               params().pagebreakBottom(false);
-               tmp->params().spaceBottom(params().spaceBottom());
-               params().spaceBottom(VSpace(VSpace::NONE));
-
-               tmp->params().depth(params().depth());
-               tmp->params().noindent(params().noindent());
-
-               // copy everything behind the break-position
-               // to the new paragraph
-               pos_type pos_end = size() - 1;
-               pos_type i = pos;
-               pos_type j = pos;
-               for (; i <= pos_end; ++i) {
-                       cutIntoMinibuffer(bparams, i);
-                       if (tmp->insertFromMinibuffer(j - pos))
-                               ++j;
-               }
-               for (i = pos_end; i >= pos; --i) {
-                       erase(i);
-               }
-       }
-
-       // just an idea of me
-       if (!isempty && !pos) {
-               tmp->params().lineTop(params().lineTop());
-               tmp->params().pagebreakTop(params().pagebreakTop());
-               tmp->params().spaceTop(params().spaceTop());
-               tmp->bibkey = bibkey;
-
-               bibkey = 0;
-               params().clear();
-
-               layout(bparams.getLyXTextClass().defaultLayout());
-
-               // layout stays the same with latex-environments
-               if (flag) {
-                       layout(tmp->layout());
-                       setLabelWidthString(tmp->params().labelWidthString());
-                       params().depth(tmp->params().depth());
-               }
-       }
-}
-
-
-void Paragraph::makeSameLayout(Paragraph const * par)
-{
-       layout(par->layout());
+       layout(par.layout());
        // move to pimpl?
-       params() = par->params();
+       params() = par.params();
 }
 
 
 int Paragraph::stripLeadingSpaces()
 {
-       if (layout()->free_spacing ||
-           isFreeSpacing()) {
+       if (isFreeSpacing())
                return 0;
-       }
 
        int i = 0;
        while (!empty() && (isNewline(0) || isLineSeparator(0))) {
-               erase(0);
+               pimpl_->eraseIntern(0);
                ++i;
        }
 
@@ -834,100 +568,11 @@ int Paragraph::stripLeadingSpaces()
 }
 
 
-bool Paragraph::hasSameLayout(Paragraph const * par) const
+bool Paragraph::hasSameLayout(Paragraph const & par) const
 {
        return
-               par->layout() == layout() &&
-               params().sameLayout(par->params());
-}
-
-
-void Paragraph::breakParagraphConservative(BufferParams const & bparams,
-                                          pos_type pos)
-{
-       // create a new paragraph
-       Paragraph * tmp = new Paragraph(this);
-       tmp->makeSameLayout(this);
-
-       // When can pos > Last()?
-       // I guess pos == Last() is possible.
-       if (size() > pos) {
-               // copy everything behind the break-position to the new
-               // paragraph
-               pos_type pos_end = size() - 1;
-
-               //pos_type i = pos;
-               //pos_type j = pos;
-               for (pos_type i = pos, j = pos; i <= pos_end; ++i) {
-                       cutIntoMinibuffer(bparams, i);
-                       if (tmp->insertFromMinibuffer(j - pos))
-                               ++j;
-               }
-
-               for (pos_type k = pos_end; k >= pos; --k) {
-                       erase(k);
-               }
-       }
-}
-
-
-// Be carefull, this does not make any check at all.
-// This method has wrong name, it combined this par with the next par.
-// In that sense it is the reverse of break paragraph. (Lgb)
-void Paragraph::pasteParagraph(BufferParams const & bparams)
-{
-       // copy the next paragraph to this one
-       Paragraph * the_next = next();
-
-       // first the DTP-stuff
-       params().lineBottom(the_next->params().lineBottom());
-       params().spaceBottom(the_next->params().spaceBottom());
-       params().pagebreakBottom(the_next->params().pagebreakBottom());
-
-       pos_type pos_end = the_next->pimpl_->size() - 1;
-       pos_type pos_insert = size();
-
-       // ok, now copy the paragraph
-       for (pos_type i = 0, j = 0; i <= pos_end; ++i) {
-               the_next->cutIntoMinibuffer(bparams, i);
-               if (insertFromMinibuffer(pos_insert + j))
-                       ++j;
-       }
-
-       // delete the next paragraph
-       Paragraph * ppar = the_next->previous_;
-       Paragraph * npar = the_next->next_;
-       delete the_next;
-       ppar->next(npar);
-}
-
-
-int Paragraph::getEndLabel() const
-{
-       Paragraph const * par = this;
-       depth_type par_depth = getDepth();
-       while (par) {
-               LyXLayout_ptr const & layout = par->layout();
-               int const endlabeltype = layout->endlabeltype;
-
-               if (endlabeltype != END_LABEL_NO_LABEL) {
-                       if (!next_)
-                               return endlabeltype;
-
-                       depth_type const next_depth = next_->getDepth();
-                       if (par_depth > next_depth ||
-                           (par_depth == next_depth
-                            && layout != next_->layout()))
-                               return endlabeltype;
-                       break;
-               }
-               if (par_depth == 0)
-                       break;
-               par = par->outerHook();
-               if (par)
-                       par_depth = par->getDepth();
-       }
-       return END_LABEL_NO_LABEL;
+               par.layout() == layout() &&
+               params().sameLayout(par.params());
 }
 
 
@@ -939,15 +584,13 @@ Paragraph::depth_type Paragraph::getDepth() const
 
 Paragraph::depth_type Paragraph::getMaxDepthAfter() const
 {
-       bool const isenv = layout()->isEnvironment();
-
-       if (isenv)
+       if (layout()->isEnvironment())
                return params().depth() + 1;
        else
                return params().depth();
-
 }
 
+
 char Paragraph::getAlign() const
 {
        return params().align();
@@ -987,32 +630,31 @@ void Paragraph::applyLayout(LyXLayout_ptr const & new_layout)
 }
 
 
-// if the layout of a paragraph contains a manual label, the beginning of the
-// main body is the beginning of the second word. This is what the par-
-// function returns. If the layout does not contain a label, the main
-// body always starts with position 0. This differentiation is necessary,
-// because there cannot be a newline or a blank <= the beginning of the
-// main body in TeX.
-
-int Paragraph::beginningOfMainBody() const
+int Paragraph::beginningOfBody() const
 {
+       if (layout()->labeltype != LABEL_MANUAL)
+               return 0;
+
        // Unroll the first two cycles of the loop
        // and remember the previous character to
        // remove unnecessary GetChar() calls
        pos_type i = 0;
-       if (i < size() && getChar(i) != Paragraph::META_NEWLINE) {
+       if (i < size() && !isNewline(i)) {
                ++i;
                char previous_char = 0;
                char temp = 0;
-               if (i < size()
-                   && (previous_char = getChar(i)) != Paragraph::META_NEWLINE) {
-                       // Yes, this  ^ is supposed to be "= " not "=="
-                       ++i;
-                       while (i < size()
-                              && previous_char != ' '
-                              && (temp = getChar(i)) != Paragraph::META_NEWLINE) {
+               if (i < size()) {
+                       previous_char = getChar(i);
+                       if (!isNewline(i)) {
                                ++i;
-                               previous_char = temp;
+                               while (i < size() && previous_char != ' ') {
+                                       temp = getChar(i);
+                                       if (isNewline(i))
+                                               break;
+
+                                       ++i;
+                                       previous_char = temp;
+                               }
                        }
                }
        }
@@ -1021,299 +663,29 @@ int Paragraph::beginningOfMainBody() const
 }
 
 
-Paragraph * Paragraph::depthHook(depth_type depth)
-{
-       Paragraph * newpar = this;
-
-       do {
-               newpar = newpar->previous();
-       } while (newpar && newpar->getDepth() > depth);
-
-       if (!newpar) {
-               if (previous() || getDepth())
-                       lyxerr << "ERROR (Paragraph::DepthHook): "
-                               "no hook." << endl;
-               newpar = this;
-       }
-
-       return newpar;
-}
-
-
-Paragraph const * Paragraph::depthHook(depth_type depth) const
-{
-       Paragraph const * newpar = this;
-
-       do {
-               newpar = newpar->previous();
-       } while (newpar && newpar->getDepth() > depth);
-
-       if (!newpar) {
-               if (previous() || getDepth())
-                       lyxerr << "ERROR (Paragraph::DepthHook): "
-                               "no hook." << endl;
-               newpar = this;
-       }
-
-       return newpar;
-}
-
-
-Paragraph * Paragraph::outerHook()
-{
-       if (!getDepth())
-               return 0;
-       return depthHook(depth_type(getDepth() - 1));
-}
-
-
-Paragraph const * Paragraph::outerHook() const
-{
-       if (!getDepth())
-               return 0;
-       return depthHook(depth_type(getDepth() - 1));
-}
-
-
 // returns -1 if inset not found
-int Paragraph::getPositionOfInset(Inset const * inset) const
+int Paragraph::getPositionOfInset(InsetOld const * inset) const
 {
        // Find the entry.
-       InsetList::iterator it = insetlist.begin();
-       InsetList::iterator end = insetlist.end();
-       for (; it != end; ++it) {
-               if (it.getInset() == inset) {
-                       return it.getPos();
-               }
-       }
-       if (inset == bibkey)
-               return 0;
-
+       InsetList::const_iterator it = insetlist.begin();
+       InsetList::const_iterator end = insetlist.end();
+       for (; it != end; ++it)
+               if (it->inset == inset)
+                       return it->pos;
        return -1;
 }
 
 
-Paragraph * Paragraph::TeXOnePar(Buffer const * buf,
-                                BufferParams const & bparams,
-                                ostream & os, TexRow & texrow,
-                                bool moving_arg)
+InsetBibitem * Paragraph::bibitem() const
 {
-       lyxerr[Debug::LATEX] << "TeXOnePar...     " << this << endl;
-       Inset const * in = inInset();
-       bool further_blank_line = false;
-       LyXLayout_ptr style;
-
-       // well we have to check if we are in an inset with unlimited
-       // lenght (all in one row) if that is true then we don't allow
-       // any special options in the paragraph and also we don't allow
-       // any environment other then "Standard" to be valid!
-       if ((in == 0) || !in->forceDefaultParagraphs(in)) {
-               style = layout();
-
-               if (params().startOfAppendix()) {
-                       os << "\\appendix\n";
-                       texrow.newline();
-               }
-
-               if (!params().spacing().isDefault()
-                       && (!previous() || !previous()->hasSameLayout(this))) {
-                       os << params().spacing().writeEnvirBegin() << "\n";
-                       texrow.newline();
-               }
-
-               if (style->isCommand()) {
-                       os << '\n';
-                       texrow.newline();
-               }
-
-               if (params().pagebreakTop()) {
-                       os << "\\newpage";
-                       further_blank_line = true;
-               }
-               if (params().spaceTop().kind() != VSpace::NONE) {
-                       os << params().spaceTop().asLatexCommand(bparams);
-                       further_blank_line = true;
-               }
-
-               if (params().lineTop()) {
-                       os << "\\lyxline{\\" << getFont(bparams, 0).latexSize() << '}'
-                          << "\\vspace{-1\\parskip}";
-                       further_blank_line = true;
-               }
-
-               if (further_blank_line) {
-                       os << '\n';
-                       texrow.newline();
-               }
-       } else {
-               style = bparams.getLyXTextClass().defaultLayout();
-       }
-
-       Language const * language = getParLanguage(bparams);
-       Language const * doc_language = bparams.language;
-       Language const * previous_language = previous()
-               ? previous()->getParLanguage(bparams) : doc_language;
-
-       if (language->babel() != previous_language->babel()
-           // check if we already put language command in TeXEnvironment()
-           && !(style->isEnvironment()
-                && (!previous() || previous()->layout() != layout() ||
-                        previous()->params().depth() != params().depth())))
-       {
-               if (!lyxrc.language_command_end.empty() &&
-                   previous_language->babel() != doc_language->babel())
-               {
-                       os << subst(lyxrc.language_command_end, "$$lang",
-                                   previous_language->babel())
-                          << endl;
-                       texrow.newline();
-               }
-
-               if (lyxrc.language_command_end.empty() ||
-                   language->babel() != doc_language->babel())
-               {
-                       os << subst(lyxrc.language_command_begin, "$$lang",
-                                   language->babel())
-                          << endl;
-                       texrow.newline();
-               }
-       }
-
-       if (bparams.inputenc == "auto" &&
-           language->encoding() != previous_language->encoding()) {
-               os << "\\inputencoding{"
-                  << language->encoding()->LatexName()
-                  << "}" << endl;
-               texrow.newline();
-       }
-
-       switch (style->latextype) {
-       case LATEX_COMMAND:
-               os << '\\'
-                  << style->latexname()
-                  << style->latexparam();
-               break;
-       case LATEX_ITEM_ENVIRONMENT:
-               if (bibkey) {
-                       bibkey->latex(buf, os, false, false);
-               } else
-                       os << "\\item ";
-               break;
-       case LATEX_LIST_ENVIRONMENT:
-               os << "\\item ";
-               break;
-       default:
-               break;
-       }
-
-       bool need_par = simpleTeXOnePar(buf, bparams, os, texrow, moving_arg);
-
-       // Make sure that \\par is done with the font of the last
-       // character if this has another size as the default.
-       // This is necessary because LaTeX (and LyX on the screen)
-       // calculates the space between the baselines according
-       // to this font. (Matthias)
-       //
-       // Is this really needed ? (Dekel)
-       // We do not need to use to change the font for the last paragraph
-       // or for a command.
-       LyXFont const font =
-               (empty()
-                ? getLayoutFont(bparams) : getFont(bparams, size() - 1));
-
-       bool is_command = style->isCommand();
-
-       if (style->resfont.size() != font.size() && next_ && !is_command) {
-               if (!need_par)
-                       os << "{";
-               os << "\\" << font.latexSize() << " \\par}";
-       } else if (need_par) {
-               os << "\\par}";
-       } else if (is_command)
-               os << "}";
-
-       switch (style->latextype) {
-       case LATEX_ITEM_ENVIRONMENT:
-       case LATEX_LIST_ENVIRONMENT:
-               if (next_ && (params().depth() < next_->params().depth())) {
-                       os << '\n';
-                       texrow.newline();
-               }
-               break;
-       case LATEX_ENVIRONMENT:
-               // if its the last paragraph of the current environment
-               // skip it otherwise fall through
-               if (next_
-                   && (next_->layout() != layout()
-                       || next_->params().depth() != params().depth()))
-                       break;
-               // fall through possible
-       default:
-               // we don't need it for the last paragraph!!!
-               if (next_) {
-                       os << '\n';
-                       texrow.newline();
-               }
-       }
-
-       if ((in == 0) || !in->forceDefaultParagraphs(in)) {
-               further_blank_line = false;
-               if (params().lineBottom()) {
-                       os << "\\lyxline{\\" << font.latexSize() << '}';
-                       further_blank_line = true;
-               }
-
-               if (params().spaceBottom().kind() != VSpace::NONE) {
-                       os << params().spaceBottom().asLatexCommand(bparams);
-                       further_blank_line = true;
-               }
-
-               if (params().pagebreakBottom()) {
-                       os << "\\newpage";
-                       further_blank_line = true;
-               }
-
-               if (further_blank_line) {
-                       os << '\n';
-                       texrow.newline();
-               }
-
-               if (!params().spacing().isDefault()
-                       && (!next_ || !next_->hasSameLayout(this))) {
-                       os << params().spacing().writeEnvirEnd() << "\n";
-                       texrow.newline();
-               }
-       }
-
-       // we don't need it for the last paragraph!!!
-       if (next_) {
-               os << '\n';
-               texrow.newline();
-       } else {
-               // Since \selectlanguage write the language to the aux file,
-               // we need to reset the language at the end of footnote or
-               // float.
-
-               if (language->babel() != doc_language->babel()) {
-                       if (lyxrc.language_command_end.empty())
-                               os << subst(lyxrc.language_command_begin,
-                                           "$$lang",
-                                           doc_language->babel())
-                                  << endl;
-                       else
-                               os << subst(lyxrc.language_command_end,
-                                           "$$lang",
-                                           language->babel())
-                                  << endl;
-                       texrow.newline();
-               }
-       }
-
-       lyxerr[Debug::LATEX] << "TeXOnePar...done " << next_ << endl;
-       return next_;
+       InsetList::const_iterator it = insetlist.begin();
+       if (it != insetlist.end() && it->inset->lyxCode() == InsetOld::BIBTEX_CODE)
+               return static_cast<InsetBibitem *>(it->inset);
+       return 0;
 }
 
 
+
 // This could go to ParagraphParameters if we want to
 int Paragraph::startTeXParParams(BufferParams const & bparams,
                                 ostream & os, bool moving_arg) const
@@ -1431,10 +803,11 @@ int Paragraph::endTeXParParams(BufferParams const & bparams,
 
 
 // This one spits out the text of the paragraph
-bool Paragraph::simpleTeXOnePar(Buffer const * buf,
+bool Paragraph::simpleTeXOnePar(Buffer const & buf,
                                BufferParams const & bparams,
+                               LyXFont const & outerfont,
                                ostream & os, TexRow & texrow,
-                               bool moving_arg)
+                               LatexRunParams const & runparams)
 {
        lyxerr[Debug::LATEX] << "SimpleTeXOnePar...     " << this << endl;
 
@@ -1458,22 +831,27 @@ bool Paragraph::simpleTeXOnePar(Buffer const * buf,
        LyXFont basefont;
 
        // Maybe we have to create a optional argument.
-       pos_type main_body;
-       if (style->labeltype != LABEL_MANUAL)
-               main_body = 0;
-       else
-               main_body = beginningOfMainBody();
+       pos_type body_pos;
 
-       int column = 0;
+       // FIXME: can we actually skip this check and just call
+       // beginningOfBody() ??
+       if (style->labeltype != LABEL_MANUAL) {
+               body_pos = 0;
+       } else {
+               body_pos = beginningOfBody();
+       }
 
-       if (main_body > 0) {
+       unsigned int column = 0;
+
+       if (body_pos > 0) {
                os << '[';
                ++column;
-               basefont = getLabelFont(bparams);
+               basefont = getLabelFont(bparams, outerfont);
        } else {
-               basefont = getLayoutFont(bparams);
+               basefont = getLayoutFont(bparams, outerfont);
        }
 
+       bool moving_arg = runparams.moving_arg;
        moving_arg |= style->needprotect;
 
        // Which font is currently active?
@@ -1481,7 +859,9 @@ bool Paragraph::simpleTeXOnePar(Buffer const * buf,
        // Do we have an open font change?
        bool open_font = false;
 
-       texrow.start(this, 0);
+       Change::Type running_change = Change::UNCHANGED;
+
+       texrow.start(id(), 0);
 
        // if the paragraph is empty, the loop will not be entered at all
        if (empty()) {
@@ -1497,13 +877,13 @@ bool Paragraph::simpleTeXOnePar(Buffer const * buf,
        for (pos_type i = 0; i < size(); ++i) {
                ++column;
                // First char in paragraph or after label?
-               if (i == main_body) {
-                       if (main_body > 0) {
+               if (i == body_pos) {
+                       if (body_pos > 0) {
                                if (open_font) {
                                        column += running_font.latexWriteEndChanges(os, basefont, basefont);
                                        open_font = false;
                                }
-                               basefont = getLayoutFont(bparams);
+                               basefont = getLayoutFont(bparams, outerfont);
                                running_font = basefont;
                                os << ']';
                                ++column;
@@ -1521,7 +901,7 @@ bool Paragraph::simpleTeXOnePar(Buffer const * buf,
                value_type c = getChar(i);
 
                // Fully instantiated font
-               LyXFont font = getFont(bparams, i);
+               LyXFont font = getFont(bparams, i, outerfont);
 
                LyXFont const last_font = running_font;
 
@@ -1529,7 +909,7 @@ bool Paragraph::simpleTeXOnePar(Buffer const * buf,
                // outside font change, i.e. we write "\textXX{text} "
                // rather than "\textXX{text }". (Asger)
                if (open_font && c == ' ' && i <= size() - 2) {
-                       LyXFont const & next_font = getFont(bparams, i + 1);
+                       LyXFont const & next_font = getFont(bparams, i + 1, outerfont);
                        if (next_font != running_font
                            && next_font != font) {
                                font = next_font;
@@ -1543,7 +923,7 @@ bool Paragraph::simpleTeXOnePar(Buffer const * buf,
                {
                        column += running_font.latexWriteEndChanges(os,
                                                                    basefont,
-                                                                   (i == main_body-1) ? basefont : font);
+                                                                   (i == body_pos-1) ? basefont : font);
                        running_font = basefont;
                        open_font = false;
                }
@@ -1551,7 +931,7 @@ bool Paragraph::simpleTeXOnePar(Buffer const * buf,
                // Blanks are printed before start of fontswitch
                if (c == ' ') {
                        // Do not print the separation of the optional argument
-                       if (i != main_body - 1) {
+                       if (i != body_pos - 1) {
                                pimpl_->simpleTeXBlanks(os, texrow, i,
                                                       column, font, *style);
                        }
@@ -1560,7 +940,7 @@ bool Paragraph::simpleTeXOnePar(Buffer const * buf,
                // Do we need to change font?
                if ((font != running_font ||
                     font.language() != running_font.language()) &&
-                       i != main_body - 1)
+                       i != body_pos - 1)
                {
                        column += font.latexWriteStartChanges(os, basefont,
                                                              last_font);
@@ -1568,39 +948,25 @@ bool Paragraph::simpleTeXOnePar(Buffer const * buf,
                        open_font = true;
                }
 
-               if (c == Paragraph::META_NEWLINE) {
-                       // newlines are handled differently here than
-                       // the default in SimpleTeXSpecialChars().
-                       if (!style->newline_allowed) {
-                               os << '\n';
-                       } else {
-                               if (open_font) {
-                                       column += running_font.latexWriteEndChanges(os, basefont, basefont);
-                                       open_font = false;
-                               }
-                               basefont = getLayoutFont(bparams);
-                               running_font = basefont;
-                               if (font.family() ==
-                                   LyXFont::TYPEWRITER_FAMILY) {
-                                       os << "~";
-                               }
-                               if (moving_arg)
-                                       os << "\\protect ";
+               Change::Type change = pimpl_->lookupChange(i);
 
-                               os << "\\\\\n";
-                       }
-                       texrow.newline();
-                       texrow.start(this, i + 1);
-                       column = 0;
-               } else {
-                       pimpl_->simpleTeXSpecialChars(buf, bparams,
-                                                     os, texrow, moving_arg,
-                                                     font, running_font,
-                                                     basefont, open_font,
-                                                     *style, i, column, c);
-               }
+               column += Changes::latexMarkChange(os, running_change, change);
+               running_change = change;
+
+               LatexRunParams rp = runparams;
+               rp.moving_arg = moving_arg;
+               rp.free_spacing = style->free_spacing;
+               pimpl_->simpleTeXSpecialChars(buf, bparams,
+                                             os, texrow, runparams,
+                                             font, running_font,
+                                             basefont, outerfont, open_font,
+                                             running_change,
+                                             *style, i, column, c);
        }
 
+       column += Changes::latexMarkChange(os,
+                       running_change, Change::UNCHANGED);
+
        // If we have an open font definition, we have to close it
        if (open_font) {
 #ifdef FIXED_LANGUAGE_END_DETECTION
@@ -1608,7 +974,7 @@ bool Paragraph::simpleTeXOnePar(Buffer const * buf,
                        running_font
                                .latexWriteEndChanges(os, basefont,
                                                      next_->getFont(bparams,
-                                                     0));
+                                                     0, outerfont));
                } else {
                        running_font.latexWriteEndChanges(os, basefont,
                                                          basefont);
@@ -1624,7 +990,7 @@ bool Paragraph::simpleTeXOnePar(Buffer const * buf,
        }
 
        // Needed if there is an optional argument but no contents.
-       if (main_body > 0 && main_body == size()) {
+       if (body_pos > 0 && body_pos == size()) {
                os << "]~";
                return_value = false;
        }
@@ -1638,111 +1004,12 @@ bool Paragraph::simpleTeXOnePar(Buffer const * buf,
 }
 
 
-Paragraph * Paragraph::TeXEnvironment(Buffer const * buf,
-                                           BufferParams const & bparams,
-                                           ostream & os, TexRow & texrow)
-{
-       lyxerr[Debug::LATEX] << "TeXEnvironment...     " << this << endl;
-
-       LyXLayout_ptr const & style = layout();
-
-       Language const * language = getParLanguage(bparams);
-       Language const * doc_language = bparams.language;
-       Language const * previous_language = previous_
-               ? previous_->getParLanguage(bparams) : doc_language;
-       if (language->babel() != previous_language->babel()) {
-
-               if (!lyxrc.language_command_end.empty() &&
-                   previous_language->babel() != doc_language->babel()) {
-                       os << subst(lyxrc.language_command_end, "$$lang",
-                                   previous_language->babel())
-                          << endl;
-                       texrow.newline();
-               }
-
-               if (lyxrc.language_command_end.empty() ||
-                   language->babel() != doc_language->babel()) {
-                       os << subst(lyxrc.language_command_begin, "$$lang",
-                                   language->babel())
-                          << endl;
-                       texrow.newline();
-               }
-       }
-
-       bool leftindent_open = false;
-       if (!params().leftIndent().zero()) {
-               os << "\\begin{LyXParagraphLeftIndent}{" <<
-                       params().leftIndent().asLatexString() << "}\n";
-               texrow.newline();
-               leftindent_open = true;
-       }
-
-       if (style->isEnvironment()) {
-               if (style->latextype == LATEX_LIST_ENVIRONMENT) {
-                       os << "\\begin{" << style->latexname() << "}{"
-                          << params().labelWidthString() << "}\n";
-               } else if (style->labeltype == LABEL_BIBLIO) {
-                       // ale970405
-                       os << "\\begin{" << style->latexname() << "}{"
-                          <<  bibitemWidest(buf)
-                          << "}\n";
-               } else if (style->latextype == LATEX_ITEM_ENVIRONMENT) {
-                       os << "\\begin{" << style->latexname() << '}'
-                          << style->latexparam() << '\n';
-               } else
-                       os << "\\begin{" << style->latexname() << '}'
-                          << style->latexparam() << '\n';
-               texrow.newline();
-       }
-       Paragraph * par = this;
-       do {
-               par = par->TeXOnePar(buf, bparams, os, texrow, false);
-
-               if (par && par->params().depth() > params().depth()) {
-                           if (par->layout()->isParagraph()) {
-
-                           // Thinko!
-                           // How to handle this? (Lgb)
-                           //&& !suffixIs(os, "\n\n")
-                                   //) {
-                               // There should be at least one '\n' already
-                               // but we need there to be two for Standard
-                               // paragraphs that are depth-increment'ed to be
-                               // output correctly.  However, tables can
-                               // also be paragraphs so don't adjust them.
-                               // ARRae
-                               // Thinkee:
-                               // Will it ever harm to have one '\n' too
-                               // many? i.e. that we sometimes will have
-                               // three in a row. (Lgb)
-                               os << '\n';
-                               texrow.newline();
-                       }
-                       par = par->pimpl_->TeXDeeper(buf, bparams, os, texrow);
-               }
-       } while (par
-                && par->layout() == layout()
-                && par->params().depth() == params().depth()
-                && par->params().leftIndent() == params().leftIndent());
-
-       if (style->isEnvironment()) {
-               os << "\\end{" << style->latexname() << "}\n";
-               texrow.newline();
-       }
-
-       if (leftindent_open) {
-               os << "\\end{LyXParagraphLeftIndent}\n";
-               texrow.newline();
-       }
-
-       lyxerr[Debug::LATEX] << "TeXEnvironment...done " << par << endl;
-       return par;  // ale970302
-}
 
 
 bool Paragraph::isHfill(pos_type pos) const
 {
-       return IsHfillChar(getChar(pos));
+       return IsInsetChar(getChar(pos))
+              && getInset(pos)->lyxCode() == InsetOld::HFILL_CODE;
 }
 
 
@@ -1754,7 +1021,8 @@ bool Paragraph::isInset(pos_type pos) const
 
 bool Paragraph::isNewline(pos_type pos) const
 {
-       return pos >= 0 && IsNewlineChar(getChar(pos));
+       return IsInsetChar(getChar(pos))
+              && getInset(pos)->lyxCode() == InsetOld::NEWLINE_CODE;
 }
 
 
@@ -1802,22 +1070,10 @@ bool Paragraph::isWord(pos_type pos) const
 Language const *
 Paragraph::getParLanguage(BufferParams const & bparams) const
 {
-       if (!empty()) {
-#ifndef INHERIT_LANGUAGE
+       if (!empty())
                return getFirstFontSettings().language();
-#else
-               Language const * lang = getFirstFontSettings().language();
-#ifdef WITH_WARNINGS
-#warning We should make this somewhat better, any ideas? (Jug)
-#endif
-               if (lang == inherit_language || lang == ignore_language)
-                       lang = bparams.language;
-               return lang;
-#endif
-       } else if (previous_)
-               return previous_->getParLanguage(bparams);
-       else
-               return bparams.language;
+#warning FIXME we should check the prev par as well (Lgb)
+       return bparams.language;
 }
 
 
@@ -1826,12 +1082,12 @@ bool Paragraph::isRightToLeftPar(BufferParams const & bparams) const
        return lyxrc.rtl_support
                && getParLanguage(bparams)->RightToLeft()
                && !(inInset() && inInset()->owner() &&
-                    inInset()->owner()->lyxCode() == Inset::ERT_CODE);
+                    inInset()->owner()->lyxCode() == InsetOld::ERT_CODE);
 }
 
 
 void Paragraph::changeLanguage(BufferParams const & bparams,
-                                 Language const * from, Language const * to)
+                              Language const * from, Language const * to)
 {
        for (pos_type i = 0; i < size(); ++i) {
                LyXFont font = getFontSettings(bparams, i);
@@ -1852,10 +1108,7 @@ bool Paragraph::isMultiLingual(BufferParams const & bparams)
        for (; cit != end; ++cit)
                if (cit->font().language() != ignore_language &&
                    cit->font().language() != latex_language &&
-#ifdef INHERIT_LANGUAGE
-                       cit->font().language() != inherit_language &&
-#endif
-                       cit->font().language() != doc_language)
+                   cit->font().language() != doc_language)
                        return true;
        return false;
 }
@@ -1863,87 +1116,143 @@ bool Paragraph::isMultiLingual(BufferParams const & bparams)
 
 // Convert the paragraph to a string.
 // Used for building the table of contents
-string const Paragraph::asString(Buffer const * buffer, bool label)
+string const Paragraph::asString(Buffer const & buffer, bool label) const
 {
-       BufferParams const & bparams = buffer->params;
+#if 0
        string s;
        if (label && !params().labelString().empty())
                s += params().labelString() + ' ';
-       string::size_type const len = s.size();
 
        for (pos_type i = 0; i < size(); ++i) {
                value_type c = getChar(i);
                if (IsPrintable(c))
                        s += c;
                else if (c == META_INSET &&
-                        getInset(i)->lyxCode() == Inset::MATH_CODE) {
+                        getInset(i)->lyxCode() == InsetOld::MATH_CODE) {
                        ostringstream ost;
                        getInset(i)->ascii(buffer, ost);
-                       s += subst(ost.str().c_str(),'\n',' ');
+                       s += subst(STRCONV(ost.str()),'\n',' ');
                }
        }
 
-       if (isRightToLeftPar(bparams))
-               reverse(s.begin() + len,s.end());
-
        return s;
+#else
+       // This should really be done by the caller and not here.
+       string ret(asString(buffer, 0, size(), label));
+       return subst(ret, '\n', ' ');
+#endif
 }
 
 
-string const Paragraph::asString(Buffer const * buffer,
-                                pos_type beg, pos_type end, bool label)
+string const Paragraph::asString(Buffer const & buffer,
+                                pos_type beg, pos_type end, bool label) const
 {
-       ostringstream ost;
+       ostringstream os;
 
        if (beg == 0 && label && !params().labelString().empty())
-               ost << params().labelString() << ' ';
+               os << params().labelString() << ' ';
 
        for (pos_type i = beg; i < end; ++i) {
-               value_type const c = getUChar(buffer->params, i);
+               value_type const c = getUChar(buffer.params(), i);
                if (IsPrintable(c))
-                       ost << c;
-               else if (c == META_NEWLINE)
-                       ost << '\n';
-               else if (c == META_HFILL)
-                       ost << '\t';
-               else if (c == META_INSET) {
-                       getInset(i)->ascii(buffer, ost);
-               }
+                       os << c;
+               else if (c == META_INSET)
+                       getInset(i)->ascii(buffer, os);
        }
 
-       return ost.str().c_str();
+       return os.str();
 }
 
 
-void Paragraph::setInsetOwner(Inset * i)
+void Paragraph::setInsetOwner(UpdatableInset * inset)
 {
-       pimpl_->inset_owner = i;
+       pimpl_->inset_owner = inset;
        InsetList::iterator it = insetlist.begin();
        InsetList::iterator end = insetlist.end();
-       for (; it != end; ++it) {
-               if (it.getInset())
-                       it.getInset()->setOwner(i);
-       }
+       for (; it != end; ++it)
+               if (it->inset)
+                       it->inset->setOwner(inset);
 }
 
 
 void Paragraph::deleteInsetsLyXText(BufferView * bv)
 {
-       // then the insets
        insetlist.deleteInsetsLyXText(bv);
 }
 
 
-void Paragraph::resizeInsetsLyXText(BufferView * bv)
+void Paragraph::setContentsFromPar(Paragraph const & par)
 {
-       // then the insets
-       insetlist.resizeInsetsLyXText(bv);
+       pimpl_->setContentsFromPar(par);
 }
 
 
-void Paragraph::setContentsFromPar(Paragraph * par)
+void Paragraph::trackChanges(Change::Type type)
 {
-       pimpl_->setContentsFromPar(par);
+       pimpl_->trackChanges(type);
+}
+
+
+void Paragraph::untrackChanges()
+{
+       pimpl_->untrackChanges();
+}
+
+
+void Paragraph::cleanChanges()
+{
+       pimpl_->cleanChanges();
+}
+
+
+Change::Type Paragraph::lookupChange(lyx::pos_type pos) const
+{
+       BOOST_ASSERT(!size() || pos < size());
+       return pimpl_->lookupChange(pos);
+}
+
+
+Change const Paragraph::lookupChangeFull(lyx::pos_type pos) const
+{
+       BOOST_ASSERT(!size() || pos < size());
+       return pimpl_->lookupChangeFull(pos);
+}
+
+
+bool Paragraph::isChanged(pos_type start, pos_type end) const
+{
+       return pimpl_->isChanged(start, end);
+}
+
+
+bool Paragraph::isChangeEdited(pos_type start, pos_type end) const
+{
+       return pimpl_->isChangeEdited(start, end);
+}
+
+
+void Paragraph::setChange(lyx::pos_type pos, Change::Type type)
+{
+       pimpl_->setChange(pos, type);
+
+}
+
+
+void Paragraph::markErased()
+{
+       pimpl_->markErased();
+}
+
+
+void Paragraph::acceptChange(pos_type start, pos_type end)
+{
+       return pimpl_->acceptChange(start, end);
+}
+
+
+void Paragraph::rejectChange(pos_type start, pos_type end)
+{
+       return pimpl_->rejectChange(start, end);
 }
 
 
@@ -1971,28 +1280,30 @@ int Paragraph::id() const
 }
 
 
-LyXLayout_ptr const & Paragraph::layout() const
+void Paragraph::id(int i)
 {
-       return layout_;
+       pimpl_->id_ = i;
 }
 
 
-void Paragraph::layout(LyXLayout_ptr const & new_layout)
+LyXLayout_ptr const & Paragraph::layout() const
 {
-       layout_ = new_layout;
+/*
+       InsetOld * inset = inInset();
+       if (inset && inset->lyxCode() == InsetOld::ENVIRONMENT_CODE)
+               return static_cast<InsetEnvironment*>(inset)->layout();
+*/
+       return layout_;
 }
 
 
-bool Paragraph::isFirstInSequence() const
+void Paragraph::layout(LyXLayout_ptr const & new_layout)
 {
-       Paragraph const * dhook = depthHook(getDepth());
-       return (dhook == this
-               || dhook->layout() != layout()
-               || dhook->getDepth() != getDepth());
+       layout_ = new_layout;
 }
 
 
-Inset * Paragraph::inInset() const
+UpdatableInset * Paragraph::inInset() const
 {
        return pimpl_->inset_owner;
 }
@@ -2021,17 +1332,24 @@ ParagraphParameters const & Paragraph::params() const
 }
 
 
-Paragraph * Paragraph::getParFromID(int id) const
+bool Paragraph::isFreeSpacing() const
 {
-       return pimpl_->getParFromID(id);
+       if (layout()->free_spacing)
+               return true;
+
+       // for now we just need this, later should we need this in some
+       // other way we can always add a function to InsetOld too.
+       if (pimpl_->inset_owner && pimpl_->inset_owner->owner())
+               return pimpl_->inset_owner->owner()->lyxCode() == InsetOld::ERT_CODE;
+       return false;
 }
 
 
-bool Paragraph::isFreeSpacing() const
+bool Paragraph::allowEmpty() const
 {
-       // for now we just need this, later should we need this in some
-       // other way we can always add a function to Inset::() too.
+       if (layout()->keepempty)
+               return true;
        if (pimpl_->inset_owner && pimpl_->inset_owner->owner())
-               return (pimpl_->inset_owner->owner()->lyxCode() == Inset::ERT_CODE);
+               return pimpl_->inset_owner->owner()->lyxCode() == InsetOld::ERT_CODE;
        return false;
 }