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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@25556 a592a061-630c-0410-9148-cb99ea01b6c8
319 lines
8.8 KiB
C++
319 lines
8.8 KiB
C++
/**
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* \file LayoutFileList.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Lars Gullik Bjønnes
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* \author John Levon
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "LayoutFile.h"
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#include "Counters.h"
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#include "Floating.h"
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#include "FloatList.h"
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#include "Lexer.h"
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#include "TextClass.h"
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#include "support/lassert.h"
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#include "support/debug.h"
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#include "support/FileName.h"
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#include "support/filetools.h"
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#include "support/gettext.h"
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#include <boost/bind.hpp>
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#include <boost/regex.hpp>
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#include <fstream>
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using namespace std;
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using namespace lyx::support;
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namespace lyx {
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using boost::bind;
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using boost::regex;
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using boost::smatch;
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LayoutFile::LayoutFile(string const & fn, string const & cln,
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string const & desc, bool texClassAvail )
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{
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name_ = fn;
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latexname_ = cln;
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description_ = desc;
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texClassAvail_ = texClassAvail;
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}
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LayoutFileList::~LayoutFileList()
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{
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ClassMap::const_iterator it = classmap_.begin();
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ClassMap::const_iterator en = classmap_.end();
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for (; it != en; ++it) {
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delete it->second;
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}
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}
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LayoutFileList & LayoutFileList::get()
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{
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static LayoutFileList baseclasslist;
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return baseclasslist;
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}
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bool LayoutFileList::haveClass(string const & classname) const
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{
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ClassMap::const_iterator it = classmap_.begin();
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ClassMap::const_iterator en = classmap_.end();
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for (; it != en; ++it) {
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if (it->first == classname)
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return true;
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}
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return false;
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}
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LayoutFile const & LayoutFileList::operator[](string const & classname) const
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{
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LASSERT(haveClass(classname), /**/);
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return *classmap_[classname];
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}
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LayoutFile &
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LayoutFileList::operator[](string const & classname)
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{
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LASSERT(haveClass(classname), /**/);
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return *classmap_[classname];
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}
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// Reads LyX textclass definitions according to textclass config file
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bool LayoutFileList::read()
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{
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Lexer lex;
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FileName const real_file = libFileSearch("", "textclass.lst");
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LYXERR(Debug::TCLASS, "Reading textclasses from `" << real_file << '\'');
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if (real_file.empty()) {
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lyxerr << "LayoutFileList::Read: unable to find "
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"textclass file `"
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<< to_utf8(makeDisplayPath(real_file.absFilename(), 1000))
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<< "'. Exiting." << endl;
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return false;
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// This causes LyX to end... Not a desirable behaviour. Lgb
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// What do you propose? That the user gets a file dialog
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// and is allowed to hunt for the file? (Asger)
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// more that we have a layout for minimal.cls statically
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// compiled in... (Lgb)
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}
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if (!lex.setFile(real_file)) {
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lyxerr << "LayoutFileList::Read: "
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"lyxlex was not able to set file: "
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<< real_file << endl;
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}
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if (!lex.isOK()) {
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lyxerr << "LayoutFileList::Read: unable to open "
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"textclass file `"
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<< to_utf8(makeDisplayPath(real_file.absFilename(), 1000))
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<< "'\nCheck your installation. LyX can't continue."
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<< endl;
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return false;
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}
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bool finished = false;
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// Parse config-file
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LYXERR(Debug::TCLASS, "Starting parsing of textclass.lst");
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while (lex.isOK() && !finished) {
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LYXERR(Debug::TCLASS, "\tline by line");
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switch (lex.lex()) {
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case Lexer::LEX_FEOF:
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finished = true;
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break;
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default:
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string const fname = lex.getString();
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LYXERR(Debug::TCLASS, "Fname: " << fname);
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if (lex.next()) {
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string const clname = lex.getString();
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LYXERR(Debug::TCLASS, "Clname: " << clname);
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if (lex.next()) {
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string const desc = lex.getString();
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LYXERR(Debug::TCLASS, "Desc: " << desc);
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if (lex.next()) {
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bool avail = lex.getBool();
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LYXERR(Debug::TCLASS, "Avail: " << avail);
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// This code is run when we have
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// fname, clname, desc, and avail
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LayoutFile * tmpl = new LayoutFile(fname, clname, desc, avail);
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if (lyxerr.debugging(Debug::TCLASS)) {
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// only system layout files are loaded here so no
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// buffer path is needed.
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tmpl->load();
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}
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classmap_[fname] = tmpl;
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}
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}
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}
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}
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}
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LYXERR(Debug::TCLASS, "End of parsing of textclass.lst");
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// lyx will start with an empty classmap_, but only reconfigure is allowed
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// in this case. This gives users a second chance to configure lyx if
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// initial configuration fails. (c.f. bug 2829)
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if (classmap_.empty())
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lyxerr << "LayoutFileList::Read: no textclasses found!"
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<< endl;
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return true;
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}
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std::vector<LayoutFileIndex> LayoutFileList::classList() const
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{
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std::vector<LayoutFileIndex> cl;
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ClassMap::const_iterator it = classmap_.begin();
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ClassMap::const_iterator en = classmap_.end();
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for (; it != en; ++it)
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cl.push_back(it->first);
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return cl;
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}
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void LayoutFileList::reset(LayoutFileIndex const & classname) {
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LASSERT(haveClass(classname), /**/);
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LayoutFile * tc = classmap_[classname];
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LayoutFile * tmpl =
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new LayoutFile(tc->name(), tc->latexname(), tc->description(),
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tc->isTeXClassAvailable());
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classmap_[classname] = tmpl;
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delete tc;
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}
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LayoutFileIndex LayoutFileList::addEmptyClass(string const & textclass)
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{
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if (haveClass(textclass))
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return textclass;
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FileName const tempLayout = FileName::tempName();
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ofstream ofs(tempLayout.toFilesystemEncoding().c_str());
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ofs << "# This layout is automatically generated\n"
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"# \\DeclareLaTeXClass{" << textclass << "}\n\n"
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"Format 7\n"
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"Input stdclass.inc\n\n"
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"Columns 1\n"
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"Sides 1\n"
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"SecNumDepth 2\n"
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"TocDepth 2\n"
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"DefaultStyle Standard\n\n"
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"Style Standard\n"
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" Category MainText\n"
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" Margin Static\n"
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" LatexType Paragraph\n"
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" LatexName dummy\n"
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" ParIndent MM\n"
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" ParSkip 0.4\n"
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" Align Block\n"
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" AlignPossible Block, Left, Right, Center\n"
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" LabelType No_Label\n"
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"End\n";
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ofs.close();
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// We do not know if a LaTeX class is available for this document, but setting
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// the last parameter to true will suppress a warning message about missing
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// tex class.
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LayoutFile * tc = new LayoutFile(textclass, textclass, "Unknown text class " + textclass, true);
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if (!tc->load(tempLayout.absFilename()))
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// The only way this happens is because the hardcoded layout file above
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// is wrong.
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LASSERT(false, /**/);
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classmap_[textclass] = tc;
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return textclass;
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}
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LayoutFileIndex
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LayoutFileList::addLocalLayout(string const & textclass, string const & path)
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{
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// FIXME There is a bug here: 4593
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//
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// only check for textclass.layout file, .cls can be anywhere in $TEXINPUTS
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// NOTE: latex class name is defined in textclass.layout, which can be
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// different from textclass
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string fullName = addName(path, textclass + ".layout");
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FileName const layout_file(fullName);
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if (layout_file.exists()) {
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LYXERR(Debug::TCLASS, "Adding class " << textclass << " from directory " << path);
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// Read .layout file and get description, real latex classname etc
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//
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// This is a C++ version of function processLayoutFile in configure.py,
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// which uses the following regex
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// \Declare(LaTeX|DocBook)Class\s*(\[([^,]*)(,.*)*\])*\s*{(.*)}
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ifstream ifs(layout_file.toFilesystemEncoding().c_str());
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static regex const reg("^#\\s*\\\\Declare(LaTeX|DocBook)Class\\s*"
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"(?:\\[([^,]*)(?:,.*)*\\])*\\s*\\{(.*)\\}\\s*");
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string line;
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while (getline(ifs, line)) {
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// look for the \DeclareXXXClass line
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smatch sub;
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if (regex_match(line, sub, reg)) {
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// returns: whole string, classtype (not used here), class name, description
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LASSERT(sub.size() == 4, /**/);
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// now, create a TextClass with description containing path information
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string className(sub.str(2) == "" ? textclass : sub.str(2));
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LayoutFile * tmpl =
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new LayoutFile(textclass, className, textclass, true);
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// This textclass is added on request so it will definitely be
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// used. Load it now because other load() calls may fail if they
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// are called in a context without buffer path information.
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tmpl->load(path);
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// There will be only one textclass with this name, even if different
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// layout files are loaded from different directories.
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if (haveClass(textclass)) {
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LYXERR0("Exisint textclass " << textclass << " is redefined by " << fullName);
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delete classmap_[textclass];
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}
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classmap_[textclass] = tmpl;
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return textclass;
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}
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}
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}
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// If .layout is not in local directory, or an invalid layout is found, return null
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return string();
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}
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LayoutFileIndex defaultBaseclass()
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{
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if (LayoutFileList::get().haveClass("article"))
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return string("article");
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if (LayoutFileList::get().empty())
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return string();
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return LayoutFileList::get().classList().front();
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}
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// Reads the style files
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bool LyXSetStyle()
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{
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LYXERR(Debug::TCLASS, "LyXSetStyle: parsing configuration...");
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if (!LayoutFileList::get().read()) {
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LYXERR(Debug::TCLASS, "LyXSetStyle: an error occured "
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"during parsing.\n Exiting.");
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return false;
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}
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LYXERR(Debug::TCLASS, "LyXSetStyle: configuration parsed.");
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return true;
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}
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} // namespace lyx
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