]> git.lyx.org Git - lyx.git/blobdiff - src/TextClass.cpp
* src/inset/InsetNomencl.cpp:
[lyx.git] / src / TextClass.cpp
index 8aae1abe87667f081ba339f8327cb8a461266ccc..a594375cda5930118f51d3513ea237c56dc77d64 100644 (file)
 #include <config.h>
 
 #include "TextClass.h"
-#include "debug.h"
-#include "Lexer.h"
+
+#include "LayoutFile.h"
+#include "Color.h"
 #include "Counters.h"
-#include "gettext.h"
 #include "Floating.h"
 #include "FloatList.h"
+#include "Layout.h"
+#include "Lexer.h"
+#include "Font.h"
 
 #include "frontends/alert.h"
 
-#include "support/lstrings.h"
-#include "support/lyxlib.h"
+#include "support/lassert.h"
+#include "support/debug.h"
+#include "support/ExceptionMessage.h"
+#include "support/FileName.h"
 #include "support/filetools.h"
+#include "support/gettext.h"
+#include "support/lstrings.h"
 #include "support/os.h"
 
-#include <boost/filesystem/operations.hpp>
-namespace fs = boost::filesystem;
-
+#include <algorithm>
+#include <fstream>
 #include <sstream>
 
+using namespace std;
+using namespace lyx::support;
 
 namespace lyx {
 
-using support::FileName;
-using support::libFileSearch;
-using support::makeDisplayPath;
-using support::quoteName;
-using support::rtrim;
-using support::subst;
-using support::addName;
-
-using std::endl;
-using std::find_if;
-using std::remove_if;
-using std::string;
-using std::ostream;
-
-
 namespace {
 
-class LayoutNamesEqual : public std::unary_function<LayoutPtr, bool> {
+class LayoutNamesEqual : public unary_function<Layout, bool> {
 public:
        LayoutNamesEqual(docstring const & name)
                : name_(name)
        {}
-       bool operator()(LayoutPtr const & c) const
+       bool operator()(Layout const & c) const
        {
-               return c->name() == name_;
+               return c.name() == name_;
        }
 private:
        docstring name_;
 };
 
 
-int const FORMAT = 5;
+int const FORMAT = 8;
 
 
 bool layout2layout(FileName const & filename, FileName const & tempfile)
 {
        FileName const script = libFileSearch("scripts", "layout2layout.py");
        if (script.empty()) {
-               lyxerr << "Could not find layout conversion "
-                         "script layout2layout.py." << endl;
+               LYXERR0("Could not find layout conversion "
+                         "script layout2layout.py.");
                return false;
        }
 
-       std::ostringstream command;
-       command << support::os::python() << ' ' << quoteName(script.toFilesystemEncoding())
+       ostringstream command;
+       command << os::python() << ' ' << quoteName(script.toFilesystemEncoding())
                << ' ' << quoteName(filename.toFilesystemEncoding())
                << ' ' << quoteName(tempfile.toFilesystemEncoding());
        string const command_str = command.str();
 
-       LYXERR(Debug::TCLASS) << "Running `" << command_str << '\'' << endl;
+       LYXERR(Debug::TCLASS, "Running `" << command_str << '\'');
 
-       support::cmd_ret const ret =
-               support::runCommand(command_str);
+       cmd_ret const ret = runCommand(command_str);
        if (ret.first != 0) {
-               lyxerr << "Could not run layout conversion "
-                         "script layout2layout.py." << endl;
+               LYXERR0("Could not run layout conversion script layout2layout.py.");
                return false;
        }
        return true;
 }
 
+
+std::string translateRT(TextClass::ReadType rt) 
+{
+       switch (rt) {
+       case TextClass::BASECLASS:
+               return "textclass";
+       case TextClass::MERGE:
+               return "input file";
+       case TextClass::MODULE:
+               return "module file";
+       case TextClass::VALIDATION:
+               return "validation";
+       }
+       // shutup warning
+       return string();
+}
+
 } // namespace anon
 
 
-TextClass::TextClass(string const & fn, string const & cln,
-                          string const & desc, bool texClassAvail )
-       : name_(fn), latexname_(cln), description_(desc),
-         floatlist_(new FloatList), counters_(new Counters),
-         texClassAvail_(texClassAvail)
+// This string should not be translated here, 
+// because it is a layout identifier.
+docstring const TextClass::plain_layout_ = from_ascii("Plain Layout");
+
+
+InsetLayout DocumentClass::plain_insetlayout_;
+
+
+/////////////////////////////////////////////////////////////////////////
+//
+// TextClass
+//
+/////////////////////////////////////////////////////////////////////////
+
+TextClass::TextClass()
 {
-       modular_ = false;
        outputType_ = LATEX;
        columns_ = 1;
        sides_ = OneSide;
        secnumdepth_ = 3;
        tocdepth_ = 3;
        pagestyle_ = "default";
-       defaultfont_ = Font(Font::ALL_SANE);
+       defaultfont_ = sane_font;
        opt_fontsize_ = "10|11|12";
        opt_pagestyle_ = "empty|plain|headings|fancy";
        titletype_ = TITLE_COMMAND_AFTER;
        titlename_ = "maketitle";
        loaded_ = false;
+       _("Plain Layout"); // a hack to make this translatable
 }
 
 
-bool TextClass::isTeXClassAvailable() const
+bool TextClass::readStyle(Lexer & lexrc, Layout & lay) const
 {
-       return texClassAvail_;
-}
-
-
-bool TextClass::do_readStyle(Lexer & lexrc, Layout & lay)
-{
-       LYXERR(Debug::TCLASS) << "Reading style " << to_utf8(lay.name()) << endl;
+       LYXERR(Debug::TCLASS, "Reading style " << to_utf8(lay.name()));
        if (!lay.read(lexrc, *this)) {
-               // Resolve fonts
-               lay.resfont = lay.font;
-               lay.resfont.realize(defaultfont());
-               lay.reslabelfont = lay.labelfont;
-               lay.reslabelfont.realize(defaultfont());
-               return false; // no errors
+               LYXERR0("Error parsing style `" << to_utf8(lay.name()) << '\'');
+               return false;
        }
-       lyxerr << "Error parsing style `" << to_utf8(lay.name()) << '\'' << endl;
-       return true;
+       // Resolve fonts
+       lay.resfont = lay.font;
+       lay.resfont.realize(defaultfont_);
+       lay.reslabelfont = lay.labelfont;
+       lay.reslabelfont.realize(defaultfont_);
+       return true; // no errors
 }
 
 
@@ -151,7 +163,6 @@ enum TextClassTags {
        TC_STYLE,
        TC_DEFAULTSTYLE,
        TC_INSETLAYOUT,
-       TC_ENVIRONMENT,
        TC_NOSTYLE,
        TC_COLUMNS,
        TC_SIDES,
@@ -162,6 +173,7 @@ enum TextClassTags {
        TC_CLASSOPTIONS,
        TC_PREAMBLE,
        TC_PROVIDES,
+       TC_REQUIRES,
        TC_LEFTMARGIN,
        TC_RIGHTMARGIN,
        TC_FLOAT,
@@ -169,26 +181,21 @@ enum TextClassTags {
        TC_NOFLOAT,
        TC_TITLELATEXNAME,
        TC_TITLELATEXTYPE,
-       TC_FORMAT
+       TC_FORMAT,
+       TC_ADDTOPREAMBLE,
+       TC_USEMODULE
 };
 
 
-// Reads a textclass structure from file.
-bool TextClass::read(FileName const & filename, ReadType rt)
-{
-       if (!support::isFileReadable(filename)) {
-               lyxerr << "Cannot read layout file `" << filename << "'."
-                      << endl;
-               return true;
-       }
+namespace {
 
-       keyword_item textClassTags[] = {
+       LexerKeyword textClassTags[] = {
+               { "addtopreamble",   TC_ADDTOPREAMBLE },
                { "classoptions",    TC_CLASSOPTIONS },
                { "columns",         TC_COLUMNS },
                { "counter",         TC_COUNTER },
                { "defaultfont",     TC_DEFAULTFONT },
                { "defaultstyle",    TC_DEFAULTSTYLE },
-               { "environment",     TC_ENVIRONMENT },
                { "float",           TC_FLOAT },
                { "format",          TC_FORMAT },
                { "input",           TC_INPUT },
@@ -200,35 +207,109 @@ bool TextClass::read(FileName const & filename, ReadType rt)
                { "pagestyle",       TC_PAGESTYLE },
                { "preamble",        TC_PREAMBLE },
                { "provides",        TC_PROVIDES },
+               { "requires",        TC_REQUIRES },
                { "rightmargin",     TC_RIGHTMARGIN },
                { "secnumdepth",     TC_SECNUMDEPTH },
                { "sides",           TC_SIDES },
                { "style",           TC_STYLE },
                { "titlelatexname",  TC_TITLELATEXNAME },
                { "titlelatextype",  TC_TITLELATEXTYPE },
-               { "tocdepth",        TC_TOCDEPTH }
+               { "tocdepth",        TC_TOCDEPTH },
+               { "usemodule",       TC_USEMODULE }
        };
+       
+} //namespace anon
 
-       switch (rt) {
-       case BASECLASS:
-               LYXERR(Debug::TCLASS) << "Reading textclass ";
-               break;
-       case MERGE:
-               LYXERR(Debug::TCLASS) << "Reading input file ";
-         break;
-       case MODULE:
-               LYXERR(Debug::TCLASS) << "Reading module file ";
-               break;
-       default:
-               BOOST_ASSERT(false);
+
+bool TextClass::convertLayoutFormat(support::FileName const & filename, ReadType rt)
+{
+       LYXERR(Debug::TCLASS, "Converting layout file to " << FORMAT);
+               FileName const tempfile = FileName::tempName("convert_layout");
+               bool success = layout2layout(filename, tempfile);
+               if (success)
+                       success = read(tempfile, rt);
+               tempfile.removeFile();
+               return success;
+}
+
+bool TextClass::read(FileName const & filename, ReadType rt)
+{
+       if (!filename.isReadableFile()) {
+               lyxerr << "Cannot read layout file `" << filename << "'."
+                      << endl;
+               return false;
        }
-       LYXERR(Debug::TCLASS) << to_utf8(makeDisplayPath(filename.absFilename()))
-               << endl;
 
-       Lexer lexrc(textClassTags,
-               sizeof(textClassTags) / sizeof(textClassTags[0]));
+       LYXERR(Debug::TCLASS, "Reading " + translateRT(rt) + ": " +
+               to_utf8(makeDisplayPath(filename.absFilename())));
 
+       // Define the plain layout used in table cells, ert, etc. Note that 
+       // we do this before loading any layout file, so that classes can 
+       // override features of this layout if they should choose to do so.
+       if (rt == BASECLASS && !hasLayout(plain_layout_))
+               layoutlist_.push_back(createBasicLayout(plain_layout_));
+
+       Lexer lexrc(textClassTags);
        lexrc.setFile(filename);
+       ReturnValues retval = read(lexrc, rt);
+       
+       LYXERR(Debug::TCLASS, "Finished reading " + translateRT(rt) + ": " +
+                       to_utf8(makeDisplayPath(filename.absFilename())));
+       
+       if (retval != FORMAT_MISMATCH) 
+               return retval == OK;
+       
+       bool const worx = convertLayoutFormat(filename, rt);
+       if (!worx) {
+               lyxerr << "Unable to convert " << filename << 
+                       " to format " << FORMAT << std::endl;
+               return false;
+       }
+       return true;
+}
+
+
+bool TextClass::validate(std::string const & str)
+{
+       TextClass tc;
+       return tc.read(str, VALIDATION);
+}
+
+
+bool TextClass::read(std::string const & str, ReadType rt) 
+{
+       Lexer lexrc(textClassTags);
+       istringstream is(str);
+       lexrc.setStream(is);
+       ReturnValues retval = read(lexrc, rt);
+
+       if (retval != FORMAT_MISMATCH) 
+               return retval == OK;
+
+       // write the layout string to a temporary file
+       FileName const tempfile = FileName::tempName("TextClass_read");
+       ofstream os(tempfile.toFilesystemEncoding().c_str());
+       if (!os) {
+               LYXERR0("Unable to create temporary file");
+               return false;
+       }
+       os << str;
+       os.close();
+
+       // now try to convert it
+       bool const worx = convertLayoutFormat(tempfile, rt);
+       if (!worx) {
+               LYXERR0("Unable to convert internal layout information to format " 
+                       << FORMAT);
+       }
+       tempfile.removeFile();
+       return worx;
+}
+
+
+// Reads a textclass structure from file.
+TextClass::ReturnValues TextClass::read(Lexer & lexrc, ReadType rt) 
+{
        bool error = !lexrc.isOK();
 
        // Format of files before the 'Format' tag was introduced
@@ -269,10 +350,9 @@ bool TextClass::read(FileName const & filename, ReadType rt)
                                                            "layout");
 
                                if (tmp.empty()) {
-                                       lexrc.printError("Could not find input"
-                                                        "file: " + inc);
+                                       lexrc.printError("Could not find input file: " + inc);
                                        error = true;
-                               } else if (read(tmp, MERGE)) {
+                               } else if (!read(tmp, MERGE)) {
                                        lexrc.printError("Error reading input"
                                                         "file: " + tmp.absFilename());
                                        error = true;
@@ -288,7 +368,6 @@ bool TextClass::read(FileName const & filename, ReadType rt)
                        }
                        break;
 
-               case TC_ENVIRONMENT:
                case TC_STYLE:
                        if (lexrc.next()) {
                                docstring const name = from_utf8(subst(lexrc.getString(),
@@ -298,31 +377,31 @@ bool TextClass::read(FileName const & filename, ReadType rt)
                                                + lexrc.getString() + " is probably not valid UTF-8!";
                                        lexrc.printError(s.c_str());
                                        Layout lay;
-                                       error = do_readStyle(lexrc, lay);
+                                       // Since we couldn't read the name, we just scan the rest
+                                       // of the style and discard it.
+                                       error = !readStyle(lexrc, lay);
                                } else if (hasLayout(name)) {
-                                       Layout * lay = operator[](name).get();
-                                       error = do_readStyle(lexrc, *lay);
+                                       Layout & lay = operator[](name);
+                                       error = !readStyle(lexrc, lay);
                                } else {
-                                       Layout lay;
-                                       lay.setName(name);
-                                       if (le == TC_ENVIRONMENT)
-                                               lay.is_environment = true;
-                                       error = do_readStyle(lexrc, lay);
+                                       Layout layout;
+                                       layout.setName(name);
+                                       error = !readStyle(lexrc, layout);
                                        if (!error)
-                                               layoutlist_.push_back(
-                                                       boost::shared_ptr<Layout>(new Layout(lay))
-                                                       );
+                                               layoutlist_.push_back(layout);
 
                                        if (defaultlayout_.empty()) {
-                                               // We do not have a default
-                                               // layout yet, so we choose
-                                               // the first layout we
-                                               // encounter.
+                                               // We do not have a default layout yet, so we choose
+                                               // the first layout we encounter.
                                                defaultlayout_ = name;
                                        }
                                }
                        }
                        else {
+                               //FIXME Should we also eat the style here? viz:
+                               //Layout layout;
+                               //readStyle(lexrc, layout);
+                               //as above...
                                lexrc.printError("No name given for style: `$$Token'.");
                                error = true;
                        }
@@ -332,11 +411,9 @@ bool TextClass::read(FileName const & filename, ReadType rt)
                        if (lexrc.next()) {
                                docstring const style = from_utf8(subst(lexrc.getString(),
                                                     '_', ' '));
-                               if (!delete_layout(style))
+                               if (!deleteLayout(style))
                                        lyxerr << "Cannot delete style `"
                                               << to_utf8(style) << '\'' << endl;
-//                                     lexrc.printError("Cannot delete style"
-//                                                      " `$$Token'");
                        }
                        break;
 
@@ -366,11 +443,11 @@ bool TextClass::read(FileName const & filename, ReadType rt)
                        break;
 
                case TC_DEFAULTFONT:
-                       defaultfont_.lyxRead(lexrc);
+                       defaultfont_ = lyxRead(lexrc);
                        if (!defaultfont_.resolved()) {
                                lexrc.printError("Warning: defaultfont should "
                                                 "be fully instantiated!");
-                               defaultfont_.realize(Font(Font::ALL_SANE));
+                               defaultfont_.realize(sane_font);
                        }
                        break;
 
@@ -384,7 +461,7 @@ bool TextClass::read(FileName const & filename, ReadType rt)
                        tocdepth_ = lexrc.getInteger();
                        break;
 
-                       // First step to support options
+               // First step to support options
                case TC_CLASSOPTIONS:
                        readClassOptions(lexrc);
                        break;
@@ -393,6 +470,10 @@ bool TextClass::read(FileName const & filename, ReadType rt)
                        preamble_ = from_utf8(lexrc.getLongString("EndPreamble"));
                        break;
 
+               case TC_ADDTOPREAMBLE:
+                       preamble_ += from_utf8(lexrc.getLongString("EndPreamble"));
+                       break;
+
                case TC_PROVIDES: {
                        lexrc.next();
                        string const feature = lexrc.getString();
@@ -404,6 +485,21 @@ bool TextClass::read(FileName const & filename, ReadType rt)
                        break;
                }
 
+               case TC_REQUIRES: {
+                       lexrc.eatLine();
+                       vector<string> const req 
+                               = getVectorFromString(lexrc.getString());
+                       requires_.insert(req.begin(), req.end());
+                       break;
+               }
+
+               case TC_USEMODULE: {
+                       lexrc.next();
+                       string const module = lexrc.getString();
+                       usemod_.insert(module);
+                       break;
+               }
+
                case TC_LEFTMARGIN:     // left margin type
                        if (lexrc.next())
                                leftmargin_ = lexrc.getDocString();
@@ -413,113 +509,125 @@ bool TextClass::read(FileName const & filename, ReadType rt)
                        if (lexrc.next())
                                rightmargin_ = lexrc.getDocString();
                        break;
+
                case TC_INSETLAYOUT:
                        if (lexrc.next()) {
-                               docstring const name = subst(lexrc.getDocString(), '_', ' ');
-                               readInsetLayout(lexrc, name);
+                               InsetLayout il;
+                               if (il.read(lexrc, *this))
+                                       insetlayoutlist_[il.name()] = il;
+                               // else there was an error, so forget it
                        }
                        break;
+
                case TC_FLOAT:
                        readFloat(lexrc);
                        break;
+
                case TC_COUNTER:
                        readCounter(lexrc);
                        break;
+
                case TC_TITLELATEXTYPE:
                        readTitleType(lexrc);
                        break;
+
                case TC_TITLELATEXNAME:
                        if (lexrc.next())
                                titlename_ = lexrc.getString();
                        break;
+
                case TC_NOFLOAT:
                        if (lexrc.next()) {
                                string const nofloat = lexrc.getString();
-                               floatlist_->erase(nofloat);
+                               floatlist_.erase(nofloat);
                        }
                        break;
                }
+
+               //Note that this is triggered the first time through the loop unless
+               //we hit a format tag.
                if (format != FORMAT)
                        break;
        }
 
-       if (format != FORMAT) {
-               LYXERR(Debug::TCLASS) << "Converting layout file from format "
-                                     << format << " to " << FORMAT << endl;
-               FileName const tempfile(support::tempName());
-               error = !layout2layout(filename, tempfile);
-               if (!error)
-                       error = read(tempfile, rt);
-               support::unlink(tempfile);
-               return error;
-       }
+       if (format != FORMAT)
+               return FORMAT_MISMATCH;
 
-       if (rt == MODULE) 
-               LYXERR(Debug::TCLASS) << "Finished reading module file "
-                               << to_utf8(makeDisplayPath(filename.absFilename()))
-                               << endl;
-       else if (rt == MERGE)
-               LYXERR(Debug::TCLASS) << "Finished reading input file "
-                               << to_utf8(makeDisplayPath(filename.absFilename()))
-                               << endl;
-       else { // we are at top level here.
-               LYXERR(Debug::TCLASS) << "Finished reading textclass "
-                                     << to_utf8(makeDisplayPath(filename.absFilename()))
-                                     << endl;
-               if (defaultlayout_.empty()) {
-                       lyxerr << "Error: Textclass '" << name_
-                              << "' is missing a defaultstyle." << endl;
+       if (rt != BASECLASS) 
+               return (error ? ERROR : OK);
+
+       if (defaultlayout_.empty()) {
+               LYXERR0("Error: Textclass '" << name_
+                                               << "' is missing a defaultstyle.");
+               error = true;
+       }
+               
+       // Try to erase "stdinsets" from the provides_ set. 
+       // The
+       //   Provides stdinsets 1
+       // declaration simply tells us that the standard insets have been
+       // defined. (It's found in stdinsets.inc but could also be used in
+       // user-defined files.) There isn't really any such package. So we
+       // might as well go ahead and erase it.
+       // If we do not succeed, then it was not there, which means that
+       // the textclass did not provide the definitions of the standard
+       // insets. So we need to try to load them.
+       int erased = provides_.erase("stdinsets");
+       if (!erased) {
+               FileName tmp = libFileSearch("layouts", "stdinsets.inc");
+
+               if (tmp.empty()) {
+                       throw ExceptionMessage(WarningException, _("Missing File"),
+                               _("Could not find stdinsets.inc! This may lead to data loss!"));
+                       error = true;
+               } else if (!read(tmp, MERGE)) {
+                       throw ExceptionMessage(WarningException, _("Corrupt File"),
+                               _("Could not read stdinsets.inc! This may lead to data loss!"));
                        error = true;
                }
+       }
 
-               min_toclevel_ = Layout::NOT_IN_TOC;
-               max_toclevel_ = Layout::NOT_IN_TOC;
-               const_iterator cit = begin();
-               const_iterator the_end = end();
-               for ( ; cit != the_end ; ++cit) {
-                       int const toclevel = (*cit)->toclevel;
-                       if (toclevel != Layout::NOT_IN_TOC) {
-                               if (min_toclevel_ == Layout::NOT_IN_TOC)
-                                       min_toclevel_ = toclevel;
-                               else
-                                       min_toclevel_ = std::min(min_toclevel_,
-                                                        toclevel);
-                               max_toclevel_ = std::max(max_toclevel_,
-                                                        toclevel);
-                       }
+       min_toclevel_ = Layout::NOT_IN_TOC;
+       max_toclevel_ = Layout::NOT_IN_TOC;
+       const_iterator lit = begin();
+       const_iterator len = end();
+       for (; lit != len; ++lit) {
+               int const toclevel = lit->toclevel;
+               if (toclevel != Layout::NOT_IN_TOC) {
+                       if (min_toclevel_ == Layout::NOT_IN_TOC)
+                               min_toclevel_ = toclevel;
+                       else
+                               min_toclevel_ = min(min_toclevel_, toclevel);
+                       max_toclevel_ = max(max_toclevel_, toclevel);
                }
-               LYXERR(Debug::TCLASS)
-                       << "Minimum TocLevel is " << min_toclevel_
-                       << ", maximum is " << max_toclevel_ <<endl;
-
        }
+       LYXERR(Debug::TCLASS, "Minimum TocLevel is " << min_toclevel_
+               << ", maximum is " << max_toclevel_);
 
-       return error;
+       return (error ? ERROR : OK);
 }
 
 
 void TextClass::readTitleType(Lexer & lexrc)
 {
-       keyword_item titleTypeTags[] = {
+       LexerKeyword titleTypeTags[] = {
                { "commandafter", TITLE_COMMAND_AFTER },
-               { "environment", TITLE_ENVIRONMENT }
+               { "environment",  TITLE_ENVIRONMENT }
        };
 
-       PushPopHelper pph(lexrc, titleTypeTags, TITLE_ENVIRONMENT);
+       PushPopHelper pph(lexrc, titleTypeTags);
 
        int le = lexrc.lex();
        switch (le) {
        case Lexer::LEX_UNDEF:
                lexrc.printError("Unknown output type `$$Token'");
-               return;
+               break;
        case TITLE_COMMAND_AFTER:
        case TITLE_ENVIRONMENT:
-               titletype_ = static_cast<LYX_TITLE_LATEX_TYPES>(le);
+               titletype_ = static_cast<TitleLatexType>(le);
                break;
        default:
-               lyxerr << "Unhandled value " << le
-                      << " in TextClass::readTitleType." << endl;
-
+               LYXERR0("Unhandled value " << le << " in TextClass::readTitleType.");
                break;
        }
 }
@@ -527,13 +635,13 @@ void TextClass::readTitleType(Lexer & lexrc)
 
 void TextClass::readOutputType(Lexer & lexrc)
 {
-       keyword_item outputTypeTags[] = {
-               { "docbook", DOCBOOK },
-               { "latex", LATEX },
+       LexerKeyword outputTypeTags[] = {
+               { "docbook",  DOCBOOK },
+               { "latex",    LATEX },
                { "literate", LITERATE }
        };
 
-       PushPopHelper pph(lexrc, outputTypeTags, LITERATE);
+       PushPopHelper pph(lexrc, outputTypeTags);
 
        int le = lexrc.lex();
        switch (le) {
@@ -546,34 +654,31 @@ void TextClass::readOutputType(Lexer & lexrc)
                outputType_ = static_cast<OutputType>(le);
                break;
        default:
-               lyxerr << "Unhandled value " << le
-                      << " in TextClass::readOutputType." << endl;
-
+               LYXERR0("Unhandled value " << le);
                break;
        }
 }
 
 
-enum ClassOptionsTags {
-       CO_FONTSIZE = 1,
-       CO_PAGESTYLE,
-       CO_OTHER,
-       CO_HEADER,
-       CO_END
-};
-
-
 void TextClass::readClassOptions(Lexer & lexrc)
 {
-       keyword_item classOptionsTags[] = {
-               {"end", CO_END },
-               {"fontsize", CO_FONTSIZE },
-               {"header", CO_HEADER },
-               {"other", CO_OTHER },
+       enum {
+               CO_FONTSIZE = 1,
+               CO_PAGESTYLE,
+               CO_OTHER,
+               CO_HEADER,
+               CO_END
+       };
+
+       LexerKeyword classOptionsTags[] = {
+               {"end",       CO_END },
+               {"fontsize",  CO_FONTSIZE },
+               {"header",    CO_HEADER },
+               {"other",     CO_OTHER },
                {"pagestyle", CO_PAGESTYLE }
        };
 
-       lexrc.pushTable(classOptionsTags, CO_END);
+       lexrc.pushTable(classOptionsTags);
        bool getout = false;
        while (!getout && lexrc.isOK()) {
                int le = lexrc.lex();
@@ -583,7 +688,7 @@ void TextClass::readClassOptions(Lexer & lexrc)
                        continue;
                default: break;
                }
-               switch (static_cast<ClassOptionsTags>(le)) {
+               switch (le) {
                case CO_FONTSIZE:
                        lexrc.next();
                        opt_fontsize_ = rtrim(lexrc.getString());
@@ -609,148 +714,21 @@ void TextClass::readClassOptions(Lexer & lexrc)
 }
 
 
-enum InsetLayoutTags {
-       IL_FONT = 1,
-       IL_BGCOLOR,
-       IL_DECORATION,
-       IL_LABELFONT,
-       IL_LABELSTRING,
-       IL_LATEXNAME,
-       IL_LATEXPARAM,
-       IL_LATEXTYPE,
-       IL_LYXTYPE,
-       IL_PREAMBLE,
-       IL_END
-};
-
-
-void TextClass::readInsetLayout(Lexer & lexrc, docstring const & name)
+void TextClass::readFloat(Lexer & lexrc)
 {
-       keyword_item elementTags[] = {
-               { "bgcolor", IL_BGCOLOR },
-               { "decoration", IL_DECORATION },
-               { "end", IL_END },
-               { "font", IL_FONT },
-               { "labelfont", IL_LABELFONT },
-               { "labelstring", IL_LABELSTRING },
-               { "latexname", IL_LATEXNAME },
-               { "latexparam", IL_LATEXPARAM },
-               { "latextype", IL_LATEXTYPE },
-               { "lyxtype", IL_LYXTYPE },
-               { "preamble", IL_PREAMBLE }
+       enum {
+               FT_TYPE = 1,
+               FT_NAME,
+               FT_PLACEMENT,
+               FT_EXT,
+               FT_WITHIN,
+               FT_STYLE,
+               FT_LISTNAME,
+               FT_BUILTIN,
+               FT_END
        };
 
-       lexrc.pushTable(elementTags, IL_END);
-
-       string lyxtype;
-       docstring labelstring;
-       string latextype;
-       string decoration;
-       string latexname;
-       string latexparam;
-       Font font(Font::ALL_INHERIT);
-       Font labelfont(Font::ALL_INHERIT);
-       Color::color bgcolor(Color::background);
-       string preamble;
-
-       bool getout = false;
-       while (!getout && lexrc.isOK()) {
-               int le = lexrc.lex();
-               switch (le) {
-               case Lexer::LEX_UNDEF:
-                       lexrc.printError("Unknown ClassOption tag `$$Token'");
-                       continue;
-               default: break;
-               }
-               switch (static_cast<InsetLayoutTags>(le)) {
-               case IL_LYXTYPE:
-                       lexrc.next();
-                       lyxtype = lexrc.getString();
-                       break;
-               case IL_LATEXTYPE:
-                       lexrc.next();
-                       latextype = lexrc.getString();
-                       break;
-               case IL_LABELSTRING:
-                       lexrc.next();
-                       labelstring = lexrc.getDocString();
-                       break;
-               case IL_DECORATION:
-                       lexrc.next();
-                       decoration = lexrc.getString();
-                       break;
-               case IL_LATEXNAME:
-                       lexrc.next();
-                       latexname = lexrc.getString();
-                       break;
-               case IL_LATEXPARAM:
-                       lexrc.next();
-                       latexparam = subst(lexrc.getString(), "&quot;", "\"");
-                       break;
-               case IL_LABELFONT:
-                       labelfont.lyxRead(lexrc);
-                       labelfont.realize(defaultfont());
-                       break;
-               case IL_FONT:
-                       font.lyxRead(lexrc);
-                       font.realize(defaultfont());
-                       // So: define font before labelfont
-                       labelfont = font;
-                       break;
-               case IL_BGCOLOR: {
-                       lexrc.next();
-                       string const token = lexrc.getString();
-                       bgcolor = lcolor.getFromLyXName(token);
-                       break;
-               }
-               case IL_PREAMBLE:
-                       preamble = lexrc.getLongString("EndPreamble");
-                       break;
-               case IL_END:
-                       getout = true;
-                       break;
-               }
-       }
-
-       //
-       // Here add element to list if getout == true
-       if (getout) {
-               InsetLayout il;
-               il.name = to_ascii(name);
-               il.lyxtype = lyxtype;
-               il.labelstring = labelstring;
-               il.decoration = decoration;
-               il.latextype = latextype;
-               il.latexname = latexname;
-               il.latexparam = latexparam;
-               il.font = font;
-               il.labelfont = labelfont;
-               il.bgcolor = bgcolor;           
-               il.preamble = preamble;
-               insetlayoutlist_[name] = il;
-       }
-
-       lexrc.popTable();
-}
-
-
-
-enum FloatTags {
-       FT_TYPE = 1,
-       FT_NAME,
-       FT_PLACEMENT,
-       FT_EXT,
-       FT_WITHIN,
-       FT_STYLE,
-       FT_LISTNAME,
-       FT_BUILTIN,
-       FT_END
-};
-
-
-void TextClass::readFloat(Lexer & lexrc)
-{
-       keyword_item floatTags[] = {
+       LexerKeyword floatTags[] = {
                { "end", FT_END },
                { "extension", FT_EXT },
                { "guiname", FT_NAME },
@@ -762,7 +740,7 @@ void TextClass::readFloat(Lexer & lexrc)
                { "type", FT_TYPE }
        };
 
-       lexrc.pushTable(floatTags, FT_END);
+       lexrc.pushTable(floatTags);
 
        string type;
        string placement;
@@ -778,16 +756,16 @@ void TextClass::readFloat(Lexer & lexrc)
                int le = lexrc.lex();
                switch (le) {
                case Lexer::LEX_UNDEF:
-                       lexrc.printError("Unknown ClassOption tag `$$Token'");
+                       lexrc.printError("Unknown float tag `$$Token'");
                        continue;
                default: break;
                }
-               switch (static_cast<FloatTags>(le)) {
+               switch (le) {
                case FT_TYPE:
                        lexrc.next();
                        type = lexrc.getString();
-                       if (floatlist_->typeExist(type)) {
-                               Floating const & fl = floatlist_->getType(type);
+                       if (floatlist_.typeExist(type)) {
+                               Floating const & fl = floatlist_.getType(type);
                                placement = fl.placement();
                                ext = fl.ext();
                                within = fl.within();
@@ -837,27 +815,31 @@ void TextClass::readFloat(Lexer & lexrc)
        if (getout) {
                Floating fl(type, placement, ext, within,
                            style, name, listName, builtin);
-               floatlist_->newFloat(fl);
+               floatlist_.newFloat(fl);
                // each float has its own counter
-               counters_->newCounter(from_ascii(type), from_ascii(within), 
+               counters_.newCounter(from_ascii(type), from_ascii(within),
                                      docstring(), docstring());
+               // also define sub-float counters
+               docstring const subtype = "sub-" + from_ascii(type);
+               counters_.newCounter(subtype, from_ascii(type),
+                                     "\\alph{" + subtype + "}", docstring());
        }
 
        lexrc.popTable();
 }
 
 
-enum CounterTags {
-       CT_NAME = 1,
-       CT_WITHIN,
-       CT_LABELSTRING,
-       CT_LABELSTRING_APPENDIX,
-       CT_END
-};
-
 void TextClass::readCounter(Lexer & lexrc)
 {
-       keyword_item counterTags[] = {
+       enum {
+               CT_NAME = 1,
+               CT_WITHIN,
+               CT_LABELSTRING,
+               CT_LABELSTRING_APPENDIX,
+               CT_END
+       };
+
+       LexerKeyword counterTags[] = {
                { "end", CT_END },
                { "labelstring", CT_LABELSTRING },
                { "labelstringappendix", CT_LABELSTRING_APPENDIX },
@@ -865,7 +847,7 @@ void TextClass::readCounter(Lexer & lexrc)
                { "within", CT_WITHIN }
        };
 
-       lexrc.pushTable(counterTags, CT_END);
+       lexrc.pushTable(counterTags);
 
        docstring name;
        docstring within;
@@ -877,22 +859,18 @@ void TextClass::readCounter(Lexer & lexrc)
                int le = lexrc.lex();
                switch (le) {
                case Lexer::LEX_UNDEF:
-                       lexrc.printError("Unknown ClassOption tag `$$Token'");
+                       lexrc.printError("Unknown counter tag `$$Token'");
                        continue;
                default: break;
                }
-               switch (static_cast<CounterTags>(le)) {
+               switch (le) {
                case CT_NAME:
                        lexrc.next();
                        name = lexrc.getDocString();
-                       if (counters_->hasCounter(name))
-                               LYXERR(Debug::TCLASS) 
-                                       << "Reading existing counter " 
-                                       << to_utf8(name) << endl;
+                       if (counters_.hasCounter(name))
+                               LYXERR(Debug::TCLASS, "Reading existing counter " << to_utf8(name));
                        else
-                               LYXERR(Debug::TCLASS) 
-                                       << "Reading new counter " 
-                                       << to_utf8(name) << endl;
+                               LYXERR(Debug::TCLASS, "Reading new counter " << to_utf8(name));
                        break;
                case CT_WITHIN:
                        lexrc.next();
@@ -917,31 +895,13 @@ void TextClass::readCounter(Lexer & lexrc)
 
        // Here if have a full counter if getout == true
        if (getout)
-               counters_->newCounter(name, within, 
+               counters_.newCounter(name, within, 
                                      labelstring, labelstring_appendix);
 
        lexrc.popTable();
 }
 
 
-Font const & TextClass::defaultfont() const
-{
-       return defaultfont_;
-}
-
-
-docstring const & TextClass::leftmargin() const
-{
-       return leftmargin_;
-}
-
-
-docstring const & TextClass::rightmargin() const
-{
-       return rightmargin_;
-}
-
-
 bool TextClass::hasLayout(docstring const & n) const
 {
        docstring const name = n.empty() ? defaultLayoutName() : n;
@@ -952,36 +912,51 @@ bool TextClass::hasLayout(docstring const & n) const
 }
 
 
-
-LayoutPtr const & TextClass::operator[](docstring const & name) const
+Layout const & TextClass::operator[](docstring const & name) const
 {
-       BOOST_ASSERT(!name.empty());
+       LASSERT(!name.empty(), /**/);
 
-       LayoutList::const_iterator cit =
-               find_if(layoutlist_.begin(),
-                       layoutlist_.end(),
-                       LayoutNamesEqual(name));
+       const_iterator it = 
+               find_if(begin(), end(), LayoutNamesEqual(name));
 
-       if (cit == layoutlist_.end()) {
+       if (it == end()) {
                lyxerr << "We failed to find the layout '" << to_utf8(name)
                       << "' in the layout list. You MUST investigate!"
                       << endl;
-               for (LayoutList::const_iterator it = layoutlist_.begin();
-                        it != layoutlist_.end(); ++it)
-                       lyxerr  << " " << to_utf8(it->get()->name()) << endl;
+               for (const_iterator cit = begin(); cit != end(); ++cit)
+                       lyxerr  << " " << to_utf8(cit->name()) << endl;
 
                // we require the name to exist
-               BOOST_ASSERT(false);
+               LASSERT(false, /**/);
        }
 
-       return (*cit);
+       return *it;
 }
 
 
+Layout & TextClass::operator[](docstring const & name)
+{
+       LASSERT(!name.empty(), /**/);
+
+       iterator it = find_if(begin(), end(), LayoutNamesEqual(name));
+
+       if (it == end()) {
+               LYXERR0("We failed to find the layout '" << to_utf8(name)
+                      << "' in the layout list. You MUST investigate!");
+               for (const_iterator cit = begin(); cit != end(); ++cit)
+                       LYXERR0(" " << to_utf8(cit->name()));
+
+               // we require the name to exist
+               LASSERT(false, /**/);
+       }
+
+       return *it;
+}
 
-bool TextClass::delete_layout(docstring const & name)
+
+bool TextClass::deleteLayout(docstring const & name)
 {
-       if (name == defaultLayoutName())
+       if (name == defaultLayoutName() || name == plainLayoutName())
                return false;
 
        LayoutList::iterator it =
@@ -1002,12 +977,13 @@ bool TextClass::load(string const & path) const
                return true;
 
        // Read style-file, provided path is searched before the system ones
-       FileName layout_file;
-       if (!path.empty())
+       // If path is a file, it is loaded directly.
+       FileName layout_file(path);
+       if (!path.empty() && !layout_file.isReadableFile())
                layout_file = FileName(addName(path, name_ + ".layout"));
-       if (layout_file.empty() || !fs::exists(layout_file.toFilesystemEncoding()))
+       if (layout_file.empty() || !layout_file.exists())
                layout_file = libFileSearch("layouts", name_, "layout");
-       loaded_ = const_cast<TextClass*>(this)->read(layout_file) == 0;
+       loaded_ = const_cast<TextClass*>(this)->read(layout_file);
 
        if (!loaded_) {
                lyxerr << "Error reading `"
@@ -1021,46 +997,29 @@ bool TextClass::load(string const & path) const
 }
 
 
-FloatList & TextClass::floats()
+void DocumentClass::addLayoutIfNeeded(docstring const & n) const
 {
-       return *floatlist_.get();
+       if (!hasLayout(n))
+               layoutlist_.push_back(createBasicLayout(n, true));
 }
 
 
-FloatList const & TextClass::floats() const
-{
-       return *floatlist_.get();
-}
-
-
-Counters & TextClass::counters() const
-{
-       return *counters_.get();
-}
-
-
-// Return the layout object of an inset given by name. If the name
-// is not found as such, the part after the ':' is stripped off, and
-// searched again. In this way, an error fallback can be provided:
-// An erroneous 'CharStyle:badname' (e.g., after a documentclass switch)
-// will invoke the layout object defined by name = 'CharStyle'.
-// If that doesn't work either, an empty object returns (shouldn't
-// happen).  -- Idea JMarc, comment MV
-InsetLayout const & TextClass::insetlayout(docstring const & name) const 
+InsetLayout const & DocumentClass::insetLayout(docstring const & name) const 
 {
+       // FIXME The fix for the InsetLayout part of 4812 would be here:
+       // Add the InsetLayout to the document class if it is not found.
        docstring n = name;
+       InsetLayouts::const_iterator cen = insetlayoutlist_.end();
        while (!n.empty()) {
-               if (insetlayoutlist_.count(n) > 0)
-                       return insetlayoutlist_[n];
-               docstring::size_type i = n.find(':');
+               InsetLayouts::const_iterator cit = insetlayoutlist_.lower_bound(n);
+               if (cit != cen && cit->first == n)
+                       return cit->second;
+               size_t i = n.find(':');
                if (i == string::npos)
                        break;
                n = n.substr(0,i);
        }
-       static InsetLayout empty;
-       empty.labelstring = from_utf8("UNDEFINED");
-       empty.bgcolor = Color::error;
-       return empty;
+       return plain_insetlayout_;
 }
 
 
@@ -1071,146 +1030,130 @@ docstring const & TextClass::defaultLayoutName() const
 }
 
 
-LayoutPtr const & TextClass::defaultLayout() const
+Layout const & TextClass::defaultLayout() const
 {
        return operator[](defaultLayoutName());
 }
 
 
-string const & TextClass::name() const
-{
-       return name_;
-}
-
-
-string const & TextClass::latexname() const
-{
-       const_cast<TextClass*>(this)->load();
-       return latexname_;
-}
-
-
-string const & TextClass::description() const
+bool TextClass::isDefaultLayout(Layout const & layout) const 
 {
-       return description_;
+       return layout.name() == defaultLayoutName();
 }
 
 
-string const & TextClass::opt_fontsize() const
+bool TextClass::isPlainLayout(Layout const & layout) const 
 {
-       return opt_fontsize_;
+       return layout.name() == plainLayoutName();
 }
 
 
-string const & TextClass::opt_pagestyle() const
+Layout TextClass::createBasicLayout(docstring const & name, bool unknown) const
 {
-       return opt_pagestyle_;
-}
-
-
-string const & TextClass::options() const
-{
-       return options_;
-}
+       static Layout * defaultLayout = NULL;
 
+       if (defaultLayout) {
+               defaultLayout->setUnknown(unknown);
+               defaultLayout->setName(name);
+               return *defaultLayout;
+       }
 
-string const & TextClass::class_header() const
-{
-       return class_header_;
+       static char const * s = "Margin Static\n"
+                       "LatexType Paragraph\n"
+                       "LatexName dummy\n"
+                       "Align Block\n"
+                       "AlignPossible Left, Right, Center\n"
+                       "LabelType No_Label\n"
+                       "End";
+       istringstream ss(s);
+       Lexer lex(textClassTags);
+       lex.setStream(ss);
+       defaultLayout = new Layout;
+       defaultLayout->setUnknown(unknown);
+       defaultLayout->setName(name);
+       if (!readStyle(lex, *defaultLayout)) {
+               // The only way this happens is because the hardcoded layout above
+               // is wrong.
+               LASSERT(false, /**/);
+       };
+       return *defaultLayout;
 }
 
+/////////////////////////////////////////////////////////////////////////
+//
+// DocumentClassBundle
+//
+/////////////////////////////////////////////////////////////////////////
 
-string const & TextClass::pagestyle() const
+DocumentClassBundle::~DocumentClassBundle()
 {
-       return pagestyle_;
+       for (size_t i = 0; i != documentClasses_.size(); ++i)
+               delete documentClasses_[i];
+       documentClasses_.clear();
 }
 
-
-docstring const & TextClass::preamble() const
+DocumentClass & DocumentClassBundle::newClass(LayoutFile const & baseClass)
 {
-       return preamble_;
+       DocumentClass * dc = new DocumentClass(baseClass);
+       documentClasses_.push_back(dc);
+       return *documentClasses_.back();
 }
 
 
-TextClass::PageSides TextClass::sides() const
+DocumentClassBundle & DocumentClassBundle::get()
 {
-       return sides_;
+       static DocumentClassBundle singleton; 
+       return singleton; 
 }
 
 
-int TextClass::secnumdepth() const
-{
-       return secnumdepth_;
-}
+/////////////////////////////////////////////////////////////////////////
+//
+// DocumentClass
+//
+/////////////////////////////////////////////////////////////////////////
 
-
-int TextClass::tocdepth() const
-{
-       return tocdepth_;
-}
+DocumentClass::DocumentClass(LayoutFile const & tc)
+       : TextClass(tc)
+{}
 
 
-OutputType TextClass::outputType() const
+bool DocumentClass::hasLaTeXLayout(std::string const & lay) const
 {
-       return outputType_;
+       LayoutList::const_iterator it  = layoutlist_.begin();
+       LayoutList::const_iterator end = layoutlist_.end();
+       for (; it != end; ++it)
+               if (it->latexname() == lay)
+                       return true;
+       return false;
 }
 
 
-bool TextClass::provides(string const & p) const
+bool DocumentClass::provides(string const & p) const
 {
        return provides_.find(p) != provides_.end();
 }
 
 
-unsigned int TextClass::columns() const
-{
-       return columns_;
-}
-
-
-LYX_TITLE_LATEX_TYPES TextClass::titletype() const
-{
-       return titletype_;
-}
-
-
-string const & TextClass::titlename() const
-{
-       return titlename_;
-}
-
-
-int TextClass::size() const
-{
-       return layoutlist_.size();
-}
-
-
-int TextClass::min_toclevel() const
-{
-       return min_toclevel_;
-}
-
-
-int TextClass::max_toclevel() const
-{
-       return max_toclevel_;
-}
-
-
-bool TextClass::hasTocLevels() const
+bool DocumentClass::hasTocLevels() const
 {
        return min_toclevel_ != Layout::NOT_IN_TOC;
 }
 
 
-ostream & operator<<(ostream & os, TextClass::PageSides p)
+/////////////////////////////////////////////////////////////////////////
+//
+// PageSides
+//
+/////////////////////////////////////////////////////////////////////////
+
+ostream & operator<<(ostream & os, PageSides p)
 {
        switch (p) {
-       case TextClass::OneSide:
+       case OneSide:
                os << '1';
                break;
-       case TextClass::TwoSides:
+       case TwoSides:
                os << '2';
                break;
        }