]> git.lyx.org Git - lyx.git/blobdiff - src/buffer.C
Alfredo's second patch
[lyx.git] / src / buffer.C
index 24f0dbaa4468e8cf56394cf27036c497931f9f3f..3e1841f0e39e2799afde65f34200f37be0277b99 100644 (file)
@@ -1,15 +1,11 @@
-/* This file is part of
- * ======================================================
+/**
+ * \file buffer.C
+ * This file is part of LyX, the document processor.
+ * Licence details can be found in the file COPYING.
  *
- *           LyX, The Document Processor
+ * \author Lars Gullik Bjønnes
  *
- *          Copyright 1995 Matthias Ettrich
- *           Copyright 1995-2001 The LyX Team.
- *
- *           This file is Copyright 1996-2001
- *           Lars Gullik Bjønnes
- *
- * ======================================================
+ * Full author contact details are available in file CREDITS
  */
 
 #include <config.h>
 #include "language.h"
 #include "exporter.h"
 #include "Lsstream.h"
-#include "converter.h"
+#include "format.h"
 #include "BufferView.h"
 #include "ParagraphParameters.h"
 #include "iterators.h"
 #include "lyxtextclasslist.h"
 #include "sgml.h"
 #include "paragraph_funcs.h"
+#include "messages.h"
 #include "author.h"
 
 #include "frontends/LyXView.h"
 #include "mathed/formulamacro.h"
 #include "mathed/formula.h"
 
-#include "insets/inset.h"
 #include "insets/inseterror.h"
-#include "insets/insetlabel.h"
-#include "insets/insetref.h"
-#include "insets/inseturl.h"
-#include "insets/insetnote.h"
-#include "insets/insetquotes.h"
-#include "insets/insetlatexaccent.h"
 #include "insets/insetbibitem.h"
 #include "insets/insetbibtex.h"
-#include "insets/insetcite.h"
-#include "insets/insetexternal.h"
-#include "insets/insetindex.h"
 #include "insets/insetinclude.h"
-#include "insets/insettoc.h"
-#include "insets/insetparent.h"
-#include "insets/insetspecialchar.h"
 #include "insets/insettext.h"
-#include "insets/insetert.h"
-#include "insets/insetgraphics.h"
-#include "insets/insetfoot.h"
-#include "insets/insetmarginal.h"
-#include "insets/insetoptarg.h"
-#include "insets/insetminipage.h"
-#include "insets/insetfloat.h"
-#include "insets/insetwrap.h"
-#include "insets/insettabular.h"
-#if 0
-#include "insets/insettheorem.h"
-#include "insets/insetlist.h"
-#endif
-#include "insets/insetcaption.h"
-#include "insets/insetfloatlist.h"
 
 #include "frontends/Dialogs.h"
 #include "frontends/Alert.h"
@@ -97,7 +66,7 @@
 
 #include <boost/bind.hpp>
 #include <boost/tuple/tuple.hpp>
-#include "BoostFormat.h"
+#include "support/BoostFormat.h"
 
 #include <fstream>
 #include <iomanip>
@@ -143,7 +112,7 @@ extern BufferList bufferlist;
 
 namespace {
 
-const int LYX_FORMAT = 222;
+const int LYX_FORMAT = 223;
 
 } // namespace anon
 
@@ -162,7 +131,7 @@ Buffer::Buffer(string const & file, bool ronly)
        }
 
        // set initial author
-       authorlist.record(Author(lyxrc.user_name, lyxrc.user_email)); 
+       authors().record(Author(lyxrc.user_name, lyxrc.user_email));
 }
 
 
@@ -177,8 +146,15 @@ Buffer::~Buffer()
        if (users)
                users->buffer(0);
 
-       if (!tmppath.empty()) {
-               DestroyBufferTmpDir(tmppath);
+       if (!tmppath.empty() && destroyDir(tmppath) != 0) {
+#if USE_BOOST_FORMAT
+               boost::format fmt = _("Could not remove the temporary directory %1$s");
+               fmt % tmppath;
+               string msg = fmt.str();
+#else
+               string msg = _("Could not remove the temporary directory ") + tmppath;
+#endif
+               Alert::warning(_("Could not remove temporary directory"), msg);
        }
 
        paragraphs.clear();
@@ -245,7 +221,7 @@ void Buffer::setReadonly(bool flag)
 
 AuthorList & Buffer::authors()
 {
-       return authorlist;
+       return params.authorlist;
 }
 
 
@@ -279,17 +255,51 @@ void Buffer::setFileName(string const & newfile)
 // We'll remove this later. (Lgb)
 namespace {
 
-string last_inset_read;
-
-#ifdef WITH_WARNINGS
-#warning And _why_ is this here? (Lgb)
+void unknownClass(string const & unknown)
+{
+       string msg =
+#if USE_BOOST_FORMAT
+               boost::io::str(boost::format(
+                       _("Using the default document class, because the "
+                       " class %1$s is unknown.")) % unknown);
+#else
+               _("Using the default document class, because the "
+               " class ") + unknown + (" is unknown.");
 #endif
-int unknown_layouts;
-int unknown_tokens;
-vector<int> author_ids;
+       Alert::warning(_("Unknown document class"), msg);
+}
 
 } // anon
 
+int Buffer::readHeader(LyXLex & lex)
+{
+       int unknown_tokens = 0;
+
+       while (lex.isOK()) {
+               lex.nextToken();
+               string const token = lex.getString();
+
+               if (token.empty())
+                       continue;
+
+               if (token == "\\end_header")
+                       break;
+
+               lyxerr[Debug::PARSER] << "Handling header token: `"
+                                     << token << '\'' << endl;
+
+               string unknown = params.readToken(lex, token);
+               if (!unknown.empty()) {
+                       if (unknown[0] != '\\') {
+                               unknownClass(unknown);
+                       } else {
+                               ++unknown_tokens;
+                       }
+               }
+       }
+       return unknown_tokens;
+}
+
 
 // candidate for move to BufferView
 // (at least some parts in the beginning of the func)
@@ -299,78 +309,75 @@ vector<int> author_ids;
 // if par = 0 normal behavior
 // else insert behavior
 // Returns false if "\the_end" is not read (Asger)
-bool Buffer::readLyXformat2(LyXLex & lex, Paragraph * par)
+bool Buffer::readBody(LyXLex & lex, ParagraphList::iterator pit)
 {
-       unknown_layouts = 0;
-       unknown_tokens = 0;
-       author_ids.clear();
+       int unknown_tokens = 0;
 
-       int pos = 0;
        Paragraph::depth_type depth = 0;
        bool the_end_read = false;
 
-       Paragraph * first_par = 0;
-       LyXFont font(LyXFont::ALL_INHERIT, params.language);
+       if (paragraphs.empty()) {
+               unknown_tokens += readHeader(lex);
 
-       if (!par) {
-               par = new Paragraph;
-               par->layout(params.getLyXTextClass().defaultLayout());
+               if (!params.getLyXTextClass().load()) {
+                       string theclass = params.getLyXTextClass().name();
+                       string msg =
+#if USE_BOOST_FORMAT
+                               boost::io::str(boost::format(
+                                       _("Using the default document class, because the "
+                                       " class %1$s could not be loaded.")) % theclass);
+#else
+                               _("Using the default document class, because the "
+                               " class ") + theclass + (" could not be loaded.");
+#endif
+                       Alert::error(_("Can't load document class"), msg);
+                       params.textclass = 0;
+               }
        } else {
                // We are inserting into an existing document
-               users->text->breakParagraph(users);
-               first_par = users->text->ownerParagraph();
-               pos = 0;
-               markDirty();
+               users->text->breakParagraph(paragraphs);
+
                // We don't want to adopt the parameters from the
-               // document we insert, so we skip until the text begins:
-               while (lex.isOK()) {
-                       lex.nextToken();
-                       string const pretoken = lex.getString();
-                       if (pretoken == "\\layout") {
-                               lex.pushToken(pretoken);
-                               break;
-                       }
-               }
+               // document we insert, so read them into a temporary buffer
+               // and then discard it
+
+               Buffer tmpbuf("", false);
+               tmpbuf.readHeader(lex);
        }
 
        while (lex.isOK()) {
                lex.nextToken();
                string const token = lex.getString();
 
-               if (token.empty()) continue;
+               if (token.empty())
+                       continue;
 
                lyxerr[Debug::PARSER] << "Handling token: `"
                                      << token << '\'' << endl;
 
-               the_end_read =
-                       parseSingleLyXformat2Token(lex, par, first_par,
-                                                  token, pos, depth,
-                                                  font);
-       }
+               if (token == "\\the_end") {
+                       the_end_read = true;
+                       continue;
+               }
 
-       if (!first_par)
-               first_par = par;
+               unknown_tokens += readParagraph(lex, token, paragraphs, pit, depth);
+       }
 
-       paragraphs.set(first_par);
 
-       if (unknown_layouts > 0) {
-               string s = _("Couldn't set the layout for ");
-               if (unknown_layouts == 1) {
-                       s += _("one paragraph");
+       if (unknown_tokens > 0) {
+#if USE_BOOST_FORMAT
+               string s;
+               if (unknown_tokens == 1) {
+                       boost::format fmt(_("Encountered one unknown token when reading the document %1$s."));
+                       fmt % fileName();
+                       s = fmt.str();
                } else {
-                       s += tostr(unknown_layouts);
-                       s += _(" paragraphs");
+                       boost::format fmt(_("Encountered %1$s unknown tokens when reading the document %2$s."));
+                       fmt % tostr(unknown_tokens);
+                       fmt % fileName();
+                       s = fmt.str();
                }
-#if USE_BOOST_FORMAT
-               Alert::alert(_("Textclass Loading Error!"), s,
-                          boost::io::str(boost::format(_("When reading %1$s")) % fileName()));
 #else
-               Alert::alert(_("Textclass Loading Error!"), s,
-                            _("When reading ") + fileName());
-#endif
-       }
-
-       if (unknown_tokens > 0) {
                string s = _("Encountered ");
                if (unknown_tokens == 1) {
                        s += _("one unknown token");
@@ -378,12 +385,7 @@ bool Buffer::readLyXformat2(LyXLex & lex, Paragraph * par)
                        s += tostr(unknown_tokens);
                        s += _(" unknown tokens");
                }
-#if USE_BOOST_FORMAT
-               Alert::alert(_("Textclass Loading Error!"), s,
-                          boost::io::str(boost::format(_("When reading %1$s")) % fileName()));
-#else
-               Alert::alert(_("Textclass Loading Error!"), s,
-                            _("When reading ") +  fileName());
+               Alert::warning(_("Document format failure"), s);
 #endif
        }
 
@@ -391,631 +393,50 @@ bool Buffer::readLyXformat2(LyXLex & lex, Paragraph * par)
 }
 
 
-namespace {
-       // This stuff is, in the traditional LyX terminology, Super UGLY
-       // but this code is too b0rken to admit of a better solution yet
-       Change current_change;
-};
-
-bool
-Buffer::parseSingleLyXformat2Token(LyXLex & lex, Paragraph *& par,
-                                  Paragraph *& first_par,
-                                  string const & token, int & pos,
-                                  Paragraph::depth_type & depth,
-                                  LyXFont & font
-       )
+int
+Buffer::readParagraph(LyXLex & lex, string const & token,
+                     ParagraphList & pars, ParagraphList::iterator & pit,
+                     Paragraph::depth_type & depth)
 {
-       bool the_end_read = false;
-
-       // The order of the tags tested may seem unnatural, but this
-       // has been done in order to reduce the number of string
-       // comparisons needed to recognize a given token. This leads
-       // on large documents like UserGuide to a reduction of a
-       // factor 5! (JMarc)
-       if (token[0] != '\\') {
-               for (string::const_iterator cit = token.begin();
-                    cit != token.end(); ++cit) {
-                       par->insertChar(pos, (*cit), font, current_change);
-                       ++pos;
-               }
-       } else if (token == "\\layout") {
-               // reset the font as we start a new layout and if the font is
-               // not ALL_INHERIT,document_language then it will be set to the
-               // right values after this tag (Jug 20020420)
-               font = LyXFont(LyXFont::ALL_INHERIT, params.language);
+       static Change current_change;
+       int unknown = 0;
 
-               lex.eatLine();
-               string layoutname = lex.getString();
+       if (token == "\\layout") {
+               lex.pushToken(token);
 
-               LyXTextClass const & tclass = params.getLyXTextClass();
-
-               if (layoutname.empty()) {
-                       layoutname = tclass.defaultLayoutName();
-               }
-               bool hasLayout = tclass.hasLayout(layoutname);
-               if (!hasLayout) {
-                       lyxerr << "Layout '" << layoutname << "' does not"
-                              << " exist in textclass '" << tclass.name()
-                              << "'." << endl;
-                       lyxerr << "Trying to use default layout instead."
-                              << endl;
-                       layoutname = tclass.defaultLayoutName();
-               }
+               Paragraph * par = new Paragraph();
+               par->params().depth(depth);
+               if (params.tracking_changes)
+                       par->trackChanges();
+               LyXFont f(LyXFont::ALL_INHERIT, params.language);
+               par->setFont(0, f);
 
-#ifdef USE_CAPTION
-               // The is the compability reading of layout caption.
-               // It can be removed in LyX version 1.3.0. (Lgb)
-               if (compare_ascii_no_case(layoutname, "caption") == 0) {
-                       // We expect that the par we are now working on is
-                       // really inside a InsetText inside a InsetFloat.
-                       // We also know that captions can only be
-                       // one paragraph. (Lgb)
-
-                       // We should now read until the next "\layout"
-                       // is reached.
-                       // This is probably not good enough, what if the
-                       // caption is the last par in the document (Lgb)
-                       istream & ist = lex.getStream();
-                       stringstream ss;
-                       string line;
-                       int begin = 0;
-                       while (true) {
-                               getline(ist, line);
-                               if (prefixIs(line, "\\layout")) {
-                                       lex.pushToken(line);
-                                       break;
-                               }
-                               if (prefixIs(line, "\\begin_inset"))
-                                       ++begin;
-                               if (prefixIs(line, "\\end_inset")) {
-                                       if (begin)
-                                               --begin;
-                                       else {
-                                               lex.pushToken(line);
-                                               break;
-                                       }
-                               }
+               // FIXME: goddamn InsetTabular makes us pass a Buffer
+               // not BufferParams
+               unknown += ::readParagraph(*this, *par, lex);
 
-                               ss << line << '\n';
-                       }
-                       // Now we should have the whole layout in ss
-                       // we should now be able to give this to the
-                       // caption inset.
-                       ss << "\\end_inset\n";
-
-                       // This seems like a bug in stringstream.
-                       // We really should be able to use ss
-                       // directly. (Lgb)
-                       istringstream is(ss.str());
-                       LyXLex tmplex(0, 0);
-                       tmplex.setStream(is);
-                       Inset * inset = new InsetCaption;
-                       inset->Read(this, tmplex);
-                       par->InsertInset(pos, inset, font);
-                       ++pos;
-               } else {
-#endif
-                       if (!first_par)
-                               first_par = par;
-                       else {
-                               par = new Paragraph(par);
-                               par->layout(params.getLyXTextClass().defaultLayout());
-                               if (params.tracking_changes)
-                                       par->trackChanges();
-                       }
-                       pos = 0;
-                       par->layout(params.getLyXTextClass()[layoutname]);
-                       // Test whether the layout is obsolete.
-                       LyXLayout_ptr const & layout = par->layout();
-                       if (!layout->obsoleted_by().empty())
-                               par->layout(params.getLyXTextClass()[layout->obsoleted_by()]);
-                       par->params().depth(depth);
-#if USE_CAPTION
-               }
-#endif
-
-       } else if (token == "\\end_inset") {
-               lyxerr << "Solitary \\end_inset. Missing \\begin_inset?.\n"
-                      << "Last inset read was: " << last_inset_read
-                      << endl;
-               // Simply ignore this. The insets do not have
-               // to read this.
-               // But insets should read it, it is a part of
-               // the inset isn't it? Lgb.
-       } else if (token == "\\begin_inset") {
-               readInset(lex, par, pos, font);
-       } else if (token == "\\family") {
-               lex.next();
-               font.setLyXFamily(lex.getString());
-       } else if (token == "\\series") {
-               lex.next();
-               font.setLyXSeries(lex.getString());
-       } else if (token == "\\shape") {
-               lex.next();
-               font.setLyXShape(lex.getString());
-       } else if (token == "\\size") {
-               lex.next();
-               font.setLyXSize(lex.getString());
-       } else if (token == "\\lang") {
-               lex.next();
-               string const tok = lex.getString();
-               Language const * lang = languages.getLanguage(tok);
-               if (lang) {
-                       font.setLanguage(lang);
-               } else {
-                       font.setLanguage(params.language);
-                       lex.printError("Unknown language `$$Token'");
-               }
-       } else if (token == "\\numeric") {
-               lex.next();
-               font.setNumber(font.setLyXMisc(lex.getString()));
-       } else if (token == "\\emph") {
-               lex.next();
-               font.setEmph(font.setLyXMisc(lex.getString()));
-       } else if (token == "\\bar") {
-               lex.next();
-               string const tok = lex.getString();
-               // This is dirty, but gone with LyX3. (Asger)
-               if (tok == "under")
-                       font.setUnderbar(LyXFont::ON);
-               else if (tok == "no")
-                       font.setUnderbar(LyXFont::OFF);
-               else if (tok == "default")
-                       font.setUnderbar(LyXFont::INHERIT);
-               else
-                       lex.printError("Unknown bar font flag "
-                                      "`$$Token'");
-       } else if (token == "\\noun") {
-               lex.next();
-               font.setNoun(font.setLyXMisc(lex.getString()));
-       } else if (token == "\\color") {
-               lex.next();
-               font.setLyXColor(lex.getString());
-       } else if (token == "\\SpecialChar") {
-               LyXLayout_ptr const & layout = par->layout();
-
-               // Insets don't make sense in a free-spacing context! ---Kayvan
-               if (layout->free_spacing || par->isFreeSpacing()) {
-                       if (lex.isOK()) {
-                               lex.next();
-                               string const next_token = lex.getString();
-                               if (next_token == "\\-") {
-                                       par->insertChar(pos, '-', font, current_change);
-                               } else if (next_token == "~") {
-                                       par->insertChar(pos, ' ', font, current_change);
-                               } else {
-                                       lex.printError("Token `$$Token' "
-                                                      "is in free space "
-                                                      "paragraph layout!");
-                                       --pos;
-                               }
-                       }
-               } else {
-                       Inset * inset = new InsetSpecialChar;
-                       inset->read(this, lex);
-                       par->insertInset(pos, inset, font, current_change);
-               }
-               ++pos;
-       } else if (token == "\\i") {
-               Inset * inset = new InsetLatexAccent;
-               inset->read(this, lex);
-               par->insertInset(pos, inset, font, current_change);
-               ++pos;
-       } else if (token == "\\backslash") {
-               par->insertChar(pos, '\\', font, current_change);
-               ++pos;
+               // insert after
+               if (pit != pars.end())
+                       ++pit;
+               pit = pars.insert(pit, par);
        } else if (token == "\\begin_deeper") {
                ++depth;
        } else if (token == "\\end_deeper") {
                if (!depth) {
-                       lex.printError("\\end_deeper: "
-                                      "depth is already null");
-               }
-               else
-                       --depth;
-       } else if (token == "\\begin_preamble") {
-               params.readPreamble(lex);
-       } else if (token == "\\textclass") {
-               lex.eatLine();
-               pair<bool, textclass_type> pp =
-                       textclasslist.NumberOfClass(lex.getString());
-               if (pp.first) {
-                       params.textclass = pp.second;
-               } else {
-#if USE_BOOST_FORMAT
-                       Alert::alert(_("Textclass error"),
-                               boost::io::str(boost::format(_("The document uses an unknown textclass \"%1$s\".")) % lex.getString()),
-                               _("-- substituting default."));
-#else
-                       Alert::alert(
-                               _("Textclass error"),
-                               _("The document uses an unknown textclass ")
-                               + lex.getString(),
-                               _("-- substituting default."));
-#endif
-                       params.textclass = 0;
-               }
-               if (!params.getLyXTextClass().load()) {
-                       // if the textclass wasn't loaded properly
-                       // we need to either substitute another
-                       // or stop loading the file.
-                       // I can substitute but I don't see how I can
-                       // stop loading... ideas??  ARRae980418
-#if USE_BOOST_FORMAT
-                       Alert::alert(_("Textclass Loading Error!"),
-                                  boost::io::str(boost::format(_("Can't load textclass %1$s")) %
-                                  params.getLyXTextClass().name()),
-                                  _("-- substituting default."));
-#else
-                       Alert::alert(_("Textclass Loading Error!"),
-                                    _("Can't load textclass ")
-                                    + params.getLyXTextClass().name(),
-                                    _("-- substituting default."));
-#endif
-                       params.textclass = 0;
-               }
-       } else if (token == "\\options") {
-               lex.eatLine();
-               params.options = lex.getString();
-       } else if (token == "\\language") {
-               params.readLanguage(lex);
-       } else if (token == "\\fontencoding") {
-               lex.eatLine();
-       } else if (token == "\\inputencoding") {
-               lex.eatLine();
-               params.inputenc = lex.getString();
-       } else if (token == "\\graphics") {
-               params.readGraphicsDriver(lex);
-       } else if (token == "\\fontscheme") {
-               lex.eatLine();
-               params.fonts = lex.getString();
-       } else if (token == "\\noindent") {
-               par->params().noindent(true);
-       } else if (token == "\\leftindent") {
-               lex.nextToken();
-               LyXLength value(lex.getString());
-               par->params().leftIndent(value);
-       } else if (token == "\\fill_top") {
-               par->params().spaceTop(VSpace(VSpace::VFILL));
-       } else if (token == "\\fill_bottom") {
-               par->params().spaceBottom(VSpace(VSpace::VFILL));
-       } else if (token == "\\line_top") {
-               par->params().lineTop(true);
-       } else if (token == "\\line_bottom") {
-               par->params().lineBottom(true);
-       } else if (token == "\\pagebreak_top") {
-               par->params().pagebreakTop(true);
-       } else if (token == "\\pagebreak_bottom") {
-               par->params().pagebreakBottom(true);
-       } else if (token == "\\start_of_appendix") {
-               par->params().startOfAppendix(true);
-       } else if (token == "\\paragraph_separation") {
-               int tmpret = lex.findToken(string_paragraph_separation);
-               if (tmpret == -1)
-                       ++tmpret;
-               params.paragraph_separation =
-                       static_cast<BufferParams::PARSEP>(tmpret);
-       } else if (token == "\\defskip") {
-               lex.nextToken();
-               params.defskip = VSpace(lex.getString());
-       } else if (token == "\\quotes_language") {
-               int tmpret = lex.findToken(string_quotes_language);
-               if (tmpret == -1)
-                       ++tmpret;
-               InsetQuotes::quote_language tmpl =
-                       InsetQuotes::EnglishQ;
-               switch (tmpret) {
-               case 0:
-                       tmpl = InsetQuotes::EnglishQ;
-                       break;
-               case 1:
-                       tmpl = InsetQuotes::SwedishQ;
-                       break;
-               case 2:
-                       tmpl = InsetQuotes::GermanQ;
-                       break;
-               case 3:
-                       tmpl = InsetQuotes::PolishQ;
-                       break;
-               case 4:
-                       tmpl = InsetQuotes::FrenchQ;
-                       break;
-               case 5:
-                       tmpl = InsetQuotes::DanishQ;
-                       break;
-               }
-               params.quotes_language = tmpl;
-       } else if (token == "\\quotes_times") {
-               lex.nextToken();
-               switch (lex.getInteger()) {
-               case 1:
-                       params.quotes_times = InsetQuotes::SingleQ;
-                       break;
-               case 2:
-                       params.quotes_times = InsetQuotes::DoubleQ;
-                       break;
-               }
-       } else if (token == "\\papersize") {
-               int tmpret = lex.findToken(string_papersize);
-               if (tmpret == -1)
-                       ++tmpret;
-               else
-                       params.papersize2 = tmpret;
-       } else if (token == "\\paperpackage") {
-               int tmpret = lex.findToken(string_paperpackages);
-               if (tmpret == -1) {
-                       ++tmpret;
-                       params.paperpackage = BufferParams::PACKAGE_NONE;
-               } else
-                       params.paperpackage = tmpret;
-       } else if (token == "\\use_geometry") {
-               lex.nextToken();
-               params.use_geometry = lex.getInteger();
-       } else if (token == "\\use_amsmath") {
-               lex.nextToken();
-               params.use_amsmath = lex.getInteger();
-       } else if (token == "\\use_natbib") {
-               lex.nextToken();
-               params.use_natbib = lex.getInteger();
-       } else if (token == "\\use_numerical_citations") {
-               lex.nextToken();
-               params.use_numerical_citations = lex.getInteger();
-       } else if (token == "\\tracking_changes") {
-               lex.nextToken();
-               params.tracking_changes = lex.getInteger();
-               // mark the first paragraph
-               if (params.tracking_changes)
-                       par->trackChanges();
-       } else if (token == "\\author") {
-               lex.nextToken();
-               istringstream ss(lex.getString());
-               Author a;
-               ss >> a;
-               int aid(authorlist.record(a)); 
-               lyxerr << "aid is " << aid << endl;
-               lyxerr << "listed aid is " << author_ids.size() << endl;
-               author_ids.push_back(authorlist.record(a));
-       } else if (token == "\\paperorientation") {
-               int tmpret = lex.findToken(string_orientation);
-               if (tmpret == -1)
-                       ++tmpret;
-               params.orientation =
-                       static_cast<BufferParams::PAPER_ORIENTATION>(tmpret);
-       } else if (token == "\\paperwidth") {
-               lex.next();
-               params.paperwidth = lex.getString();
-       } else if (token == "\\paperheight") {
-               lex.next();
-               params.paperheight = lex.getString();
-       } else if (token == "\\leftmargin") {
-               lex.next();
-               params.leftmargin = lex.getString();
-       } else if (token == "\\topmargin") {
-               lex.next();
-               params.topmargin = lex.getString();
-       } else if (token == "\\rightmargin") {
-               lex.next();
-               params.rightmargin = lex.getString();
-       } else if (token == "\\bottommargin") {
-               lex.next();
-               params.bottommargin = lex.getString();
-       } else if (token == "\\headheight") {
-               lex.next();
-               params.headheight = lex.getString();
-       } else if (token == "\\headsep") {
-               lex.next();
-               params.headsep = lex.getString();
-       } else if (token == "\\footskip") {
-               lex.next();
-               params.footskip = lex.getString();
-       } else if (token == "\\paperfontsize") {
-               lex.nextToken();
-               params.fontsize = rtrim(lex.getString());
-       } else if (token == "\\papercolumns") {
-               lex.nextToken();
-               params.columns = lex.getInteger();
-       } else if (token == "\\papersides") {
-               lex.nextToken();
-               switch (lex.getInteger()) {
-               default:
-               case 1: params.sides = LyXTextClass::OneSide; break;
-               case 2: params.sides = LyXTextClass::TwoSides; break;
-               }
-       } else if (token == "\\paperpagestyle") {
-               lex.nextToken();
-               params.pagestyle = rtrim(lex.getString());
-       } else if (token == "\\bullet") {
-               lex.nextToken();
-               int const index = lex.getInteger();
-               lex.nextToken();
-               int temp_int = lex.getInteger();
-               params.user_defined_bullets[index].setFont(temp_int);
-               params.temp_bullets[index].setFont(temp_int);
-               lex.nextToken();
-               temp_int = lex.getInteger();
-               params.user_defined_bullets[index].setCharacter(temp_int);
-               params.temp_bullets[index].setCharacter(temp_int);
-               lex.nextToken();
-               temp_int = lex.getInteger();
-               params.user_defined_bullets[index].setSize(temp_int);
-               params.temp_bullets[index].setSize(temp_int);
-               lex.nextToken();
-               string const temp_str = lex.getString();
-               if (temp_str != "\\end_bullet") {
-                               // this element isn't really necessary for
-                               // parsing but is easier for humans
-                               // to understand bullets. Put it back and
-                               // set a debug message?
-                       lex.printError("\\end_bullet expected, got" + temp_str);
-                               //how can I put it back?
-               }
-       } else if (token == "\\bulletLaTeX") {
-               // The bullet class should be able to read this.
-               lex.nextToken();
-               int const index = lex.getInteger();
-               lex.next();
-               string temp_str = lex.getString();
-               string sum_str;
-               while (temp_str != "\\end_bullet") {
-                               // this loop structure is needed when user
-                               // enters an empty string since the first
-                               // thing returned will be the \\end_bullet
-                               // OR
-                               // if the LaTeX entry has spaces. Each element
-                               // therefore needs to be read in turn
-                       sum_str += temp_str;
-                       lex.next();
-                       temp_str = lex.getString();
-               }
-
-               params.user_defined_bullets[index].setText(sum_str);
-               params.temp_bullets[index].setText(sum_str);
-       } else if (token == "\\secnumdepth") {
-               lex.nextToken();
-               params.secnumdepth = lex.getInteger();
-       } else if (token == "\\tocdepth") {
-               lex.nextToken();
-               params.tocdepth = lex.getInteger();
-       } else if (token == "\\spacing") {
-               lex.next();
-               string const tmp = rtrim(lex.getString());
-               Spacing::Space tmp_space = Spacing::Default;
-               float tmp_val = 0.0;
-               if (tmp == "single") {
-                       tmp_space = Spacing::Single;
-               } else if (tmp == "onehalf") {
-                       tmp_space = Spacing::Onehalf;
-               } else if (tmp == "double") {
-                       tmp_space = Spacing::Double;
-               } else if (tmp == "other") {
-                       lex.next();
-                       tmp_space = Spacing::Other;
-                       tmp_val = lex.getFloat();
+                       lex.printError("\\end_deeper: " "depth is already null");
                } else {
-                       lex.printError("Unknown spacing token: '$$Token'");
-               }
-               // Small hack so that files written with klyx will be
-               // parsed correctly.
-               if (first_par) {
-                       par->params().spacing(Spacing(tmp_space, tmp_val));
-               } else {
-                       params.spacing.set(tmp_space, tmp_val);
-               }
-       } else if (token == "\\paragraph_spacing") {
-               lex.next();
-               string const tmp = rtrim(lex.getString());
-               if (tmp == "single") {
-                       par->params().spacing(Spacing(Spacing::Single));
-               } else if (tmp == "onehalf") {
-                       par->params().spacing(Spacing(Spacing::Onehalf));
-               } else if (tmp == "double") {
-                       par->params().spacing(Spacing(Spacing::Double));
-               } else if (tmp == "other") {
-                       lex.next();
-                       par->params().spacing(Spacing(Spacing::Other,
-                                        lex.getFloat()));
-               } else {
-                       lex.printError("Unknown spacing token: '$$Token'");
+                       --depth;
                }
-       } else if (token == "\\float_placement") {
-               lex.nextToken();
-               params.float_placement = lex.getString();
-       } else if (token == "\\align") {
-               int tmpret = lex.findToken(string_align);
-               if (tmpret == -1)
-                       ++tmpret;
-               int const tmpret2 = int(pow(2.0, tmpret));
-               par->params().align(LyXAlignment(tmpret2));
-       } else if (token == "\\added_space_top") {
-               lex.nextToken();
-               VSpace value = VSpace(lex.getString());
-               // only add the length when value > 0 or
-               // with option keep
-               if ((value.length().len().value() != 0) ||
-                   value.keep() ||
-                   (value.kind() != VSpace::LENGTH))
-                       par->params().spaceTop(value);
-       } else if (token == "\\added_space_bottom") {
-               lex.nextToken();
-               VSpace value = VSpace(lex.getString());
-               // only add the length when value > 0 or
-               // with option keep
-               if ((value.length().len().value() != 0) ||
-                  value.keep() ||
-                   (value.kind() != VSpace::LENGTH))
-                       par->params().spaceBottom(value);
-       } else if (token == "\\labelwidthstring") {
-               lex.eatLine();
-               par->params().labelWidthString(lex.getString());
-               // do not delete this token, it is still needed!
-       } else if (token == "\\newline") {
-               par->insertChar(pos, Paragraph::META_NEWLINE, font, current_change);
-               ++pos;
-       } else if (token == "\\LyXTable") {
-               Inset * inset = new InsetTabular(*this);
-               inset->read(this, lex);
-               par->insertInset(pos, inset, font, current_change);
-               ++pos;
-       } else if (token == "\\bibitem") {  // ale970302
-               InsetCommandParams p("bibitem", "dummy");
-               InsetBibitem * inset = new InsetBibitem(p);
-               inset->read(this, lex);
-               par->insertInset(pos, inset, font, current_change);
-               ++pos;
-       } else if (token == "\\hfill") {
-               par->insertChar(pos, Paragraph::META_HFILL, font, current_change);
-               ++pos;
-       } else if (token == "\\change_unchanged") {
-               // Hack ! Needed for empty paragraphs :/
-               if (!pos)
-                       par->cleanChanges();
-               current_change = Change(Change::UNCHANGED);
-       } else if (token == "\\change_inserted") {
-               lex.nextToken();
-               istringstream istr(lex.getString());
-               int aid;
-               lyx::time_type ct;
-               istr >> aid;
-               istr >> ct;
-               current_change = Change(Change::INSERTED, author_ids[aid], ct);
-       } else if (token == "\\change_deleted") {
-               lex.nextToken();
-               istringstream istr(lex.getString());
-               int aid;
-               lyx::time_type ct;
-               istr >> aid;
-               istr >> ct;
-               current_change = Change(Change::DELETED, author_ids[aid], ct);
-       } else if (token == "\\the_end") {
-               the_end_read = true;
        } else {
-               // This should be insurance for the future: (Asger)
-               ++unknown_tokens;
-               lex.eatLine();
-#if USE_BOOST_FORMAT
-               boost::format fmt(_("Unknown token: %1$s %2$s\n"));
-               fmt % token % lex.text();
-               string const s = fmt.str();
-#else
-               string const s = _("Unknown token: ") + token
-                       + ' ' + lex.text() + '\n';
-#endif
-               // we can do this here this way because we're actually reading
-               // the buffer and don't care about LyXText right now.
-               InsetError * new_inset = new InsetError(s);
-               par->insertInset(pos, new_inset, LyXFont(LyXFont::ALL_INHERIT,
-                                params.language));
-
+               ++unknown;
        }
-
-       return the_end_read;
+       return unknown;
 }
 
 
 // needed to insert the selection
-void Buffer::insertStringAsLines(Paragraph *& par, pos_type & pos,
-                                LyXFont const & fn,string const & str) const
+void Buffer::insertStringAsLines(ParagraphList::iterator & par, pos_type & pos,
+                                LyXFont const & fn,string const & str)
 {
        LyXLayout_ptr const & layout = par->layout();
 
@@ -1030,9 +451,9 @@ void Buffer::insertStringAsLines(Paragraph *& par, pos_type & pos,
            cit != str.end(); ++cit) {
                if (*cit == '\n') {
                        if (autobreakrows && (!par->empty() || layout->keepempty)) {
-                               breakParagraph(params, par, pos,
+                               breakParagraph(params, paragraphs, par, pos,
                                               layout->isEnvironment());
-                               par = par->next();
+                               ++par;
                                pos = 0;
                                space_inserted = true;
                        } else {
@@ -1047,13 +468,13 @@ void Buffer::insertStringAsLines(Paragraph *& par, pos_type & pos,
                } else if (*cit == '\t') {
                        if (!layout->free_spacing && !par->isFreeSpacing()) {
                                // tabs are like spaces here
-                               par->insertChar(pos, ' ', font, current_change);
+                               par->insertChar(pos, ' ', font);
                                ++pos;
                                space_inserted = true;
                        } else {
                                const pos_type nb = 8 - pos % 8;
                                for (pos_type a = 0; a < nb ; ++a) {
-                                       par->insertChar(pos, ' ', font, current_change);
+                                       par->insertChar(pos, ' ', font);
                                        ++pos;
                                }
                                space_inserted = true;
@@ -1072,216 +493,113 @@ void Buffer::insertStringAsLines(Paragraph *& par, pos_type & pos,
 }
 
 
-void Buffer::readInset(LyXLex & lex, Paragraph *& par,
-                      int & pos, LyXFont & font)
+bool Buffer::readFile(LyXLex & lex, string const & filename)
 {
-       // consistency check
-       if (lex.getString() != "\\begin_inset") {
-               lyxerr << "Buffer::readInset: Consistency check failed."
-                      << endl;
-       }
+       bool ret = readFile(lex, filename, paragraphs.begin());
 
-       Inset * inset = 0;
+       // After we have read a file, we must ensure that the buffer
+       // language is set and used in the gui.
+       // If you know of a better place to put this, please tell me. (Lgb)
+       updateDocLang(params.language);
+
+       return ret;
+}
+
+
+// FIXME: all the below Alerts should give the filename..
+bool Buffer::readFile(LyXLex & lex, string const & filename,
+                     ParagraphList::iterator pit)
+{
+       if (!lex.isOK()) {
+               Alert::error(_("Document could not be read"),
+                       _("The specified document could not be read."));
+               return false;
+       }
 
        lex.next();
-       string const tmptok = lex.getString();
-       last_inset_read = tmptok;
-
-       // test the different insets
-       if (tmptok == "LatexCommand") {
-               InsetCommandParams inscmd;
-               inscmd.read(lex);
-
-               string const cmdName = inscmd.getCmdName();
-
-               // This strange command allows LyX to recognize "natbib" style
-               // citations: citet, citep, Citet etc.
-               if (compare_ascii_no_case(cmdName.substr(0,4), "cite") == 0) {
-                       inset = new InsetCitation(inscmd);
-               } else if (cmdName == "bibitem") {
-                       lex.printError("Wrong place for bibitem");
-                       inset = new InsetBibitem(inscmd);
-               } else if (cmdName == "BibTeX") {
-                       inset = new InsetBibtex(inscmd);
-               } else if (cmdName == "index") {
-                       inset = new InsetIndex(inscmd);
-               } else if (cmdName == "include") {
-                       inset = new InsetInclude(inscmd, *this);
-               } else if (cmdName == "label") {
-                       inset = new InsetLabel(inscmd);
-               } else if (cmdName == "url"
-                          || cmdName == "htmlurl") {
-                       inset = new InsetUrl(inscmd);
-               } else if (cmdName == "ref"
-                          || cmdName == "pageref"
-                          || cmdName == "vref"
-                          || cmdName == "vpageref"
-                          || cmdName == "prettyref") {
-                       if (!inscmd.getOptions().empty()
-                           || !inscmd.getContents().empty()) {
-                               inset = new InsetRef(inscmd, *this);
-                       }
-               } else if (cmdName == "tableofcontents") {
-                       inset = new InsetTOC(inscmd);
-               } else if (cmdName == "listofalgorithms") {
-                       inset = new InsetFloatList("algorithm");
-               } else if (cmdName == "listoffigures") {
-                       inset = new InsetFloatList("figure");
-               } else if (cmdName == "listoftables") {
-                       inset = new InsetFloatList("table");
-               } else if (cmdName == "printindex") {
-                       inset = new InsetPrintIndex(inscmd);
-               } else if (cmdName == "lyxparent") {
-                       inset = new InsetParent(inscmd, *this);
-               }
-       } else {
-               bool alreadyread = false;
-               if (tmptok == "Quotes") {
-                       inset = new InsetQuotes;
-               } else if (tmptok == "External") {
-                       inset = new InsetExternal;
-               } else if (tmptok == "FormulaMacro") {
-                       inset = new InsetFormulaMacro;
-               } else if (tmptok == "Formula") {
-                       inset = new InsetFormula;
-               } else if (tmptok == "Figure") { // Backward compatibility
-//                     inset = new InsetFig(100, 100, *this);
-                       inset = new InsetGraphics;
-               } else if (tmptok == "Graphics") {
-                       inset = new InsetGraphics;
-               } else if (tmptok == "Info") {// backwards compatibility
-                       inset = new InsetNote(this,
-                                             lex.getLongString("\\end_inset"),
-                                             true);
-                       alreadyread = true;
-               } else if (tmptok == "Note") {
-                       inset = new InsetNote(params);
-               } else if (tmptok == "Include") {
-                       InsetCommandParams p("Include");
-                       inset = new InsetInclude(p, *this);
-               } else if (tmptok == "ERT") {
-                       inset = new InsetERT(params);
-               } else if (tmptok == "Tabular") {
-                       inset = new InsetTabular(*this);
-               } else if (tmptok == "Text") {
-                       inset = new InsetText(params);
-               } else if (tmptok == "Foot") {
-                       inset = new InsetFoot(params);
-               } else if (tmptok == "Marginal") {
-                       inset = new InsetMarginal(params);
-               } else if (tmptok == "OptArg") {
-                       inset = new InsetOptArg(params);
-               } else if (tmptok == "Minipage") {
-                       inset = new InsetMinipage(params);
-               } else if (tmptok == "Float") {
-                       lex.next();
-                       string tmptok = lex.getString();
-                       inset = new InsetFloat(params, tmptok);
-               } else if (tmptok == "Wrap") {
-                       lex.next();
-                       string tmptok = lex.getString();
-                       inset = new InsetWrap(params, tmptok);
-#if 0
-               } else if (tmptok == "List") {
-                       inset = new InsetList;
-               } else if (tmptok == "Theorem") {
-                       inset = new InsetList;
-#endif
-               } else if (tmptok == "Caption") {
-                       inset = new InsetCaption(params);
-               } else if (tmptok == "FloatList") {
-                       inset = new InsetFloatList;
-               }
+       string const token(lex.getString());
 
-               if (inset && !alreadyread) inset->read(this, lex);
-       }
-
-       if (inset) {
-               par->insertInset(pos, inset, font, current_change);
-               ++pos;
-       }
-}
-
-
-bool Buffer::readFile(LyXLex & lex, string const & filename, Paragraph * par)
-{
-       if (lex.isOK()) {
-               lex.next();
-               string const token(lex.getString());
-               if (token == "\\lyxformat") { // the first token _must_ be...
-                       lex.eatLine();
-                       string tmp_format = lex.getString();
-                       //lyxerr << "LyX Format: `" << tmp_format << '\'' << endl;
-                       // if present remove ".," from string.
-                       string::size_type dot = tmp_format.find_first_of(".,");
-                       //lyxerr << "           dot found at " << dot << endl;
-                       if (dot != string::npos)
-                               tmp_format.erase(dot, 1);
-                       file_format = strToInt(tmp_format);
-                       //lyxerr << "format: " << file_format << endl;
-                       if (file_format == LYX_FORMAT) {
-                               // current format
-                       } else if (file_format > LYX_FORMAT) {
-                               // future format
-                               Alert::alert(_("Warning!"),
-                                       _("The file was created with a newer version of "
-                                       "LyX. This is likely to cause problems."));
-
-                       } else if (file_format < LYX_FORMAT) {
-                               // old formats
-                               if (file_format < 200) {
-                                       Alert::alert(_("ERROR!"),
-                                                  _("Old LyX file format found. "
-                                                    "Use LyX 0.10.x to read this!"));
-                                       return false;
-                               } else if (!filename.empty()) {
-                                       string command =
-                                               LibFileSearch("lyx2lyx", "lyx2lyx");
-                                       if (command.empty()) {
-                                               Alert::alert(_("ERROR!"),
-                                                            _("Can't find conversion script."));
-                                               return false;
-                                       }
-                                       command += " -t"
-                                               +tostr(LYX_FORMAT) + ' '
-                                               + QuoteName(filename);
-                                       lyxerr[Debug::INFO] << "Running '"
-                                                           << command << '\''
-                                                           << endl;
-                                       cmd_ret const ret = RunCommand(command);
-                                       if (ret.first) {
-                                               Alert::alert(_("ERROR!"),
-                                                            _("An error occured while "
-                                                              "running the conversion script."));
-                                               return false;
-                                       }
-                                       istringstream is(STRCONV(ret.second));
-                                       LyXLex tmplex(0, 0);
-                                       tmplex.setStream(is);
-                                       return readFile(tmplex, string(), par);
-                               } else {
-                                       // This code is reached if lyx2lyx failed (for
-                                       // some reason) to change the file format of
-                                       // the file.
-                                       lyx::Assert(false);
-                                       return false;
-                               }
-                       }
-                       bool the_end = readLyXformat2(lex, par);
-                       params.setPaperStuff();
+       if (!lex.isOK()) {
+               Alert::error(_("Document could not be read"),
+                       _("The specified document could not be read."));
+               return false;
+       }
+
+       // the first token _must_ be...
+       if (token != "\\lyxformat") {
+               Alert::error(_("Document format failure"),
+                       _("The specified document is not a LyX document."));
+               return false;
+       }
 
-                       if (!the_end) {
-                               Alert::alert(_("Warning!"),
-                                          _("Reading of document is not complete"),
-                                          _("Maybe the document is truncated"));
+       lex.eatLine();
+       string tmp_format = lex.getString();
+       //lyxerr << "LyX Format: `" << tmp_format << '\'' << endl;
+       // if present remove ".," from string.
+       string::size_type dot = tmp_format.find_first_of(".,");
+       //lyxerr << "           dot found at " << dot << endl;
+       if (dot != string::npos)
+                       tmp_format.erase(dot, 1);
+       file_format = strToInt(tmp_format);
+       //lyxerr << "format: " << file_format << endl;
+       if (file_format == LYX_FORMAT) {
+               // current format
+       } else if (file_format > LYX_FORMAT) {
+               Alert::warning(_("Document format failure"),
+                       _("This document was created with a newer version of "
+                       "LyX. This is likely to cause problems."));
+       } else if (file_format < LYX_FORMAT) {
+               // old formats
+               if (file_format < 200) {
+                       Alert::error(_("Document format failure"),
+                               _("This LyX document is too old to be read "
+                               "by this version of LyX. Try LyX 0.10."));
+                       return false;
+               } else if (!filename.empty()) {
+                       string command =
+                               LibFileSearch("lyx2lyx", "lyx2lyx");
+                       if (command.empty()) {
+                               Alert::error(_("Conversion script not found"),
+                                       _("The document is from an earlier version "
+                                         "of LyX, but the conversion script lyx2lyx "
+                                         "could not be found."));
+                               return false;
                        }
-                       return true;
-               } else { // "\\lyxformat" not found
-                       Alert::alert(_("ERROR!"), _("Not a LyX file!"));
+                       command += " -t"
+                               +tostr(LYX_FORMAT) + ' '
+                               + QuoteName(filename);
+                       lyxerr[Debug::INFO] << "Running '"
+                                           << command << '\''
+                                           << endl;
+                       cmd_ret const ret = RunCommand(command);
+                       if (ret.first) {
+                               Alert::error(_("Conversion script failed"),
+                                       _("The document is from an earlier version "
+                                         "of LyX, but the lyx2lyx script failed "
+                                         "to convert it."));
+                               return false;
+                       }
+                       istringstream is(STRCONV(ret.second));
+                       LyXLex tmplex(0, 0);
+                       tmplex.setStream(is);
+                       return readFile(tmplex, string(), pit);
+               } else {
+                       // This code is reached if lyx2lyx failed (for
+                       // some reason) to change the file format of
+                       // the file.
+                       lyx::Assert(false);
+                       return false;
                }
-       } else
-               Alert::alert(_("ERROR!"), _("Unable to read file!"));
-       return false;
+       }
+       bool the_end = readBody(lex, pit);
+       params.setPaperStuff();
+
+       if (!the_end) {
+               Alert::error(_("Document format failure"),
+                       _("The document ended unexpectedly, which means "
+                         "that it is probably corrupted."));
+       }
+       return true;
 }
 
 
@@ -1392,15 +710,8 @@ bool Buffer::writeFile(string const & fname) const
        // now write out the buffer paramters.
        params.writeFile(ofs);
 
-       // if we're tracking, list all possible authors
-       if (params.tracking_changes) {
-               AuthorList::Authors::const_iterator it = authorlist.begin();
-               AuthorList::Authors::const_iterator end = authorlist.end();
-               for (; it != end; ++it) {
-                       ofs << "\\author " << it->second << "\n";
-               }
-       }
+       ofs << "\\end_header\n";
+
        Paragraph::depth_type depth = 0;
 
        // this will write out all the paragraphs
@@ -1519,9 +830,6 @@ string const Buffer::asciiParagraph(Paragraph const & par,
        /* noindent ? */
 
        /* what about the alignment */
-//     } else {
-//             lyxerr << "Should this ever happen?" << endl;
-//     }
 
        // linelen <= 0 is special and means we don't have paragraph breaks
 
@@ -1611,31 +919,12 @@ string const Buffer::asciiParagraph(Paragraph const & par,
                }
                break;
 
-               case Paragraph::META_NEWLINE:
-                       if (linelen > 0) {
-                               buffer << word << "\n";
-                               word.erase();
-
-                               pair<int, string> p = addDepth(depth,
-                                                              ltype_depth);
-                               buffer << p.second;
-                               currlinelen = p.first;
-                       }
-                       break;
-
-               case Paragraph::META_HFILL:
-                       buffer << word << "\t";
-                       currlinelen += word.length() + 1;
-                       word.erase();
-                       break;
-
                default:
                        if (c == ' ') {
                                if (linelen > 0 &&
                                    currlinelen + word.length() > linelen - 10) {
                                        buffer << "\n";
-                                       pair<int, string> p =
-                                               addDepth(depth, ltype_depth);
+                                       pair<int, string> p = addDepth(depth, ltype_depth);
                                        buffer << p.second;
                                        currlinelen = p.first;
                                }
@@ -1674,7 +963,16 @@ void Buffer::writeFileAscii(string const & fname, int linelen)
 {
        ofstream ofs(fname.c_str());
        if (!ofs) {
-               Alert::err_alert(_("Error: Cannot write file:"), fname);
+               string const file = MakeDisplayPath(fname, 50);
+#if USE_BOOST_FORMAT
+               boost::format fmt(_("Could not save the document\n%1$s."));
+               fmt % file;
+               string text = fmt.str();
+#else
+               string text = _("Could not save the document\n");
+               text += file + ".";
+#endif
+               Alert::error(_("Could not save document"), text);
                return;
        }
        writeFileAscii(ofs, linelen);
@@ -1702,7 +1000,16 @@ void Buffer::makeLaTeXFile(string const & fname,
 
        ofstream ofs(fname.c_str());
        if (!ofs) {
-               Alert::err_alert(_("Error: Cannot open file: "), fname);
+               string const file = MakeDisplayPath(fname, 50);
+#if USE_BOOST_FORMAT
+               boost::format fmt(_("Could not open the specified document\n%1$s."));
+               fmt % file;
+               string text = fmt.str();
+#else
+               string text = _("Could not open the specified document\n");
+               text += file + ".";
+#endif
+               Alert::error(_("Could not open file"), text);
                return;
        }
 
@@ -1786,7 +1093,7 @@ void Buffer::makeLaTeXFile(ostream & os,
                texrow.newline();
        }
 
-       latexParagraphs(os, &*(paragraphs.begin()), 0, texrow);
+       latexParagraphs(this, paragraphs, paragraphs.begin(), paragraphs.end(), os, texrow);
 
        // add this just in case after all the paragraphs
        os << endl;
@@ -1821,81 +1128,6 @@ void Buffer::makeLaTeXFile(ostream & os,
 }
 
 
-//
-// LaTeX all paragraphs from par to endpar, if endpar == 0 then to the end
-//
-void Buffer::latexParagraphs(ostream & ofs, Paragraph * par,
-                            Paragraph * endpar, TexRow & texrow,
-                            bool moving_arg) const
-{
-       bool was_title = false;
-       bool already_title = false;
-       LyXTextClass const & tclass = params.getLyXTextClass();
-
-       // if only_body
-       while (par != endpar) {
-               Inset * in = par->inInset();
-               // well we have to check if we are in an inset with unlimited
-               // length (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)) {
-                       LyXLayout_ptr const & layout = par->layout();
-
-                       if (layout->intitle) {
-                               if (already_title) {
-                                       lyxerr <<"Error in latexParagraphs: You"
-                                               " should not mix title layouts"
-                                               " with normal ones." << endl;
-                               } else if (!was_title) {
-                                       was_title = true;
-                                       if (tclass.titletype() == TITLE_ENVIRONMENT) {
-                                               ofs << "\\begin{"
-                                                   << tclass.titlename()
-                                                   << "}\n";
-                                               texrow.newline();
-                                       }
-                               }
-                       } else if (was_title && !already_title) {
-                               if (tclass.titletype() == TITLE_ENVIRONMENT) {
-                                       ofs << "\\end{" << tclass.titlename()
-                                           << "}\n";
-                               }
-                               else {
-                                       ofs << "\\" << tclass.titlename()
-                                           << "\n";
-                               }
-                               texrow.newline();
-                               already_title = true;
-                               was_title = false;
-                       }
-
-                       if (layout->isEnvironment() ||
-                               !par->params().leftIndent().zero())
-                       {
-                               par = par->TeXEnvironment(this, params, ofs, texrow);
-                       } else {
-                               par = par->TeXOnePar(this, params, ofs, texrow, moving_arg);
-                       }
-               } else {
-                       par = par->TeXOnePar(this, params, ofs, texrow, moving_arg);
-               }
-       }
-       // It might be that we only have a title in this document
-       if (was_title && !already_title) {
-               if (tclass.titletype() == TITLE_ENVIRONMENT) {
-                       ofs << "\\end{" << tclass.titlename()
-                           << "}\n";
-               }
-               else {
-                       ofs << "\\" << tclass.titlename()
-                           << "\n";
-                               }
-               texrow.newline();
-       }
-}
-
-
 bool Buffer::isLatex() const
 {
        return params.getLyXTextClass().outputType() == LATEX;
@@ -1934,7 +1166,16 @@ void Buffer::makeLinuxDocFile(string const & fname, bool nice, bool body_only)
        ofstream ofs(fname.c_str());
 
        if (!ofs) {
-               Alert::alert(_("LYX_ERROR:"), _("Cannot write file"), fname);
+               string const file = MakeDisplayPath(fname, 50);
+#if USE_BOOST_FORMAT
+               boost::format fmt(_("Could not save the specified document\n%1$s.\n"));
+               fmt % file;
+               string text = fmt.str();
+#else
+               string text = _("Could not save the specified document\n");
+               text += file + _(".\n");
+#endif
+               Alert::error(_("Could not save document"), text);
                return;
        }
 
@@ -1979,27 +1220,26 @@ void Buffer::makeLinuxDocFile(string const & fname, bool nice, bool body_only)
            << " -->\n";
 
        Paragraph::depth_type depth = 0; // paragraph depth
-       Paragraph * par = &*(paragraphs.begin());
        string item_name;
        vector<string> environment_stack(5);
 
-       while (par) {
-               LyXLayout_ptr const & style = par->layout();
+       ParagraphList::iterator pit = paragraphs.begin();
+       ParagraphList::iterator pend = paragraphs.end();
+       for (; pit != pend; ++pit) {
+               LyXLayout_ptr const & style = pit->layout();
                // treat <toc> as a special case for compatibility with old code
-               if (par->isInset(0)) {
-                       Inset * inset = par->getInset(0);
+               if (pit->isInset(0)) {
+                       Inset * inset = pit->getInset(0);
                        Inset::Code lyx_code = inset->lyxCode();
                        if (lyx_code == Inset::TOC_CODE) {
                                string const temp = "toc";
                                sgml::openTag(ofs, depth, false, temp);
-
-                               par = par->next();
                                continue;
                        }
                }
 
                // environment tag closing
-               for (; depth > par->params().depth(); --depth) {
+               for (; depth > pit->params().depth(); --depth) {
                        sgml::closeTag(ofs, depth, false, environment_stack[depth]);
                        environment_stack[depth].erase();
                }
@@ -2007,7 +1247,7 @@ void Buffer::makeLinuxDocFile(string const & fname, bool nice, bool body_only)
                // write opening SGML tags
                switch (style->latextype) {
                case LATEX_PARAGRAPH:
-                       if (depth == par->params().depth()
+                       if (depth == pit->params().depth()
                           && !environment_stack[depth].empty()) {
                                sgml::closeTag(ofs, depth, false, environment_stack[depth]);
                                environment_stack[depth].erase();
@@ -2020,8 +1260,8 @@ void Buffer::makeLinuxDocFile(string const & fname, bool nice, bool body_only)
                        break;
 
                case LATEX_COMMAND:
-                       if (depth!= 0)
-                               sgmlError(par, 0,
+                       if (depth != 0)
+                               sgmlError(&*pit, 0,
                                          _("Error: Wrong depth for LatexType Command.\n"));
 
                        if (!environment_stack[depth].empty()) {
@@ -2039,14 +1279,14 @@ void Buffer::makeLinuxDocFile(string const & fname, bool nice, bool body_only)
                {
                        string const & latexname = style->latexname();
 
-                       if (depth == par->params().depth()
+                       if (depth == pit->params().depth()
                            && environment_stack[depth] != latexname) {
                                sgml::closeTag(ofs, depth, false,
                                             environment_stack[depth]);
                                environment_stack[depth].erase();
                        }
-                       if (depth < par->params().depth()) {
-                              depth = par->params().depth();
+                       if (depth < pit->params().depth()) {
+                              depth = pit->params().depth();
                               environment_stack[depth].erase();
                        }
                        if (environment_stack[depth] != latexname) {
@@ -2079,9 +1319,7 @@ void Buffer::makeLinuxDocFile(string const & fname, bool nice, bool body_only)
                        break;
                }
 
-               simpleLinuxDocOnePar(ofs, par, depth);
-
-               par = par->next();
+               simpleLinuxDocOnePar(ofs, &*pit, depth);
 
                ofs << "\n";
                // write closing SGML tags
@@ -2204,7 +1442,7 @@ void Buffer::simpleLinuxDocOnePar(ostream & os,
                PAR_TAG tag_close = NONE;
                list < PAR_TAG > tag_open;
 
-               LyXFont const font = par->getFont(params, i);
+               LyXFont const font = par->getFont(params, i, outerFont(par, paragraphs));
 
                if (font_old.family() != font.family()) {
                        switch (family_type) {
@@ -2367,7 +1605,7 @@ void Buffer::simpleLinuxDocOnePar(ostream & os,
 
 
 // Print an error message.
-void Buffer::sgmlError(Paragraph * /*par*/, int /*pos*/,
+void Buffer::sgmlError(ParagraphList::iterator /*par*/, int /*pos*/,
        string const & /*message*/) const
 {
 #ifdef WITH_WARNINGS
@@ -2391,12 +1629,19 @@ void Buffer::makeDocBookFile(string const & fname, bool nice, bool only_body)
 {
        ofstream ofs(fname.c_str());
        if (!ofs) {
-               Alert::alert(_("LYX_ERROR:"), _("Cannot write file"), fname);
+               string const file = MakeDisplayPath(fname, 50);
+#if USE_BOOST_FORMAT
+               boost::format fmt(_("Could not save the specified document\n%1$s.\n"));
+               fmt % file;
+               string text = fmt.str();
+#else
+               string text = _("Could not save the specified document\n");
+               text += file + _(".\n");
+#endif
+               Alert::error(_("Could not save document"), text);
                return;
        }
 
-       Paragraph * par = &*(paragraphs.begin());
-
        niceFile = nice; // this will be used by Insetincludes.
 
        LaTeXFeatures features(params);
@@ -2450,7 +1695,10 @@ void Buffer::makeDocBookFile(string const & fname, bool nice, bool only_body)
        string item_name;
        string command_name;
 
-       while (par) {
+       ParagraphList::iterator par = paragraphs.begin();
+       ParagraphList::iterator pend = paragraphs.end();
+
+       for (; par != pend; ++par) {
                string sgmlparam;
                string c_depth;
                string c_params;
@@ -2604,7 +1852,6 @@ void Buffer::makeDocBookFile(string const & fname, bool nice, bool only_body)
 
                simpleDocBookOnePar(ofs, par, desc_on,
                                    depth + 1 + command_depth);
-               par = par->next();
 
                string end_tag;
                // write closing SGML tags
@@ -2668,7 +1915,7 @@ void Buffer::makeDocBookFile(string const & fname, bool nice, bool only_body)
 
 
 void Buffer::simpleDocBookOnePar(ostream & os,
-                                Paragraph * par, int & desc_on,
+                                ParagraphList::iterator par, int & desc_on,
                                 Paragraph::depth_type depth) const
 {
        bool emph_flag = false;
@@ -2683,7 +1930,7 @@ void Buffer::simpleDocBookOnePar(ostream & os,
 
        // parsing main loop
        for (pos_type i = 0; i < par->size(); ++i) {
-               LyXFont font = par->getFont(params, i);
+               LyXFont font = par->getFont(params, i, outerFont(par, paragraphs));
 
                // handle <emphasis> tag
                if (font_old.emph() != font.emph()) {
@@ -2785,8 +2032,8 @@ int Buffer::runChktex()
        int res = chktex.run(terr); // run chktex
 
        if (res == -1) {
-               Alert::alert(_("chktex did not work!"),
-                          _("Could not run with file:"), name);
+               Alert::error(_("chktex failure"),
+                       _("Could not run chktex successfully."));
        } else if (res > 0) {
                // Insert all errors as errors boxes
                users->insertErrors(terr);
@@ -2813,9 +2060,10 @@ void Buffer::validate(LaTeXFeatures & features) const
                features.require("dvipost");
                features.require("color");
        }
+
        // AMS Style is at document level
-       if (params.use_amsmath || tclass.provides(LyXTextClass::amsmath))
+       if (params.use_amsmath == BufferParams::AMS_ON
+           || tclass.provides(LyXTextClass::amsmath))
                features.require("amsmath");
 
        for_each(paragraphs.begin(), paragraphs.end(),
@@ -2966,6 +2214,10 @@ void Buffer::redraw()
 
 void Buffer::changeLanguage(Language const * from, Language const * to)
 {
+       lyxerr << "Changing Language!" << endl;
+
+       // Take care of l10n/i18n
+       updateDocLang(to);
 
        ParIterator end = par_iterator_end();
        for (ParIterator it = par_iterator_begin(); it != end; ++it)
@@ -2973,6 +2225,12 @@ void Buffer::changeLanguage(Language const * from, Language const * to)
 }
 
 
+void Buffer::updateDocLang(Language const * nlang)
+{
+       messages_.reset(new Messages(nlang->code()));
+}
+
+
 bool Buffer::isMultiLingual()
 {
        ParIterator end = par_iterator_end();
@@ -3010,22 +2268,24 @@ Inset * Buffer::getInsetFromID(int id_arg) const
 }
 
 
-Paragraph * Buffer::getParFromID(int id) const
+ParagraphList::iterator Buffer::getParFromID(int id) const
 {
-       if (id < 0)
-               return 0;
-       // why should we allow < 0 ??
-       //lyx::Assert(id >= 0);
+#warning FIXME: const correctness! (Andre)
+       ParIterator it(const_cast<Buffer*>(this)->par_iterator_begin());
+       ParIterator end(const_cast<Buffer*>(this)->par_iterator_end());
 
-       ParConstIterator it(par_iterator_begin());
-       ParConstIterator end(par_iterator_end());
+#warning FIXME, perhaps this func should return a ParIterator? (Lgb)
+       if (id < 0) {
+               // John says this is called with id == -1 from undo
+               lyxerr << "getParFromID(), id: " << id << endl;
+               return 0;
+       }
 
        for (; it != end; ++it) {
                // go on then, show me how to remove
                // the cast
                if ((*it)->id() == id) {
-                       return const_cast<Paragraph*>(*it);
+                       return *it;
                }
        }
 
@@ -3075,6 +2335,16 @@ Language const * Buffer::getLanguage() const
 }
 
 
+string const Buffer::B_(string const & l10n) const
+{
+       if (messages_.get()) {
+               return messages_->get(l10n);
+       }
+
+       return _(l10n);
+}
+
+
 bool Buffer::isClean() const
 {
        return lyx_clean;