]> git.lyx.org Git - lyx.git/blobdiff - src/lyxtextclasslist.C
* languages: use nb_NO instead of no_NO for norwegian (bug 2850).
[lyx.git] / src / lyxtextclasslist.C
index ea21f14b0ef57a43ef11bcd0394baa2b624eda51..17282854e39356f2944ace0320ffd62dbe85578e 100644 (file)
@@ -1,51 +1,65 @@
-/* This file is part of
- * ======================================================
+/**
+ * \file lyxtextclasslist.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
+ * \author John Levon
  *
- *          Copyright 1995 Matthias Ettrich
- *          Copyright 1995-2001 The LyX Team.
- *
- * ======================================================
+ * Full author contact details are available in file CREDITS.
  */
 
 #include <config.h>
 
-#ifdef __GNUG__
-#pragma implementation
-#endif
-
 #include "lyxtextclasslist.h"
 #include "lyxtextclass.h"
 #include "debug.h"
 #include "lyxlex.h"
-#include "gettext.h"
-
-#include "frontends/Alert.h"
 
-#include "support/lyxfunctional.h"
-#include "support/LAssert.h"
 #include "support/filetools.h"
 
-#include <utility>
+#include <boost/bind.hpp>
+#include <boost/regex.hpp>
+#include <boost/filesystem/operations.hpp>
+#include <fstream>
+
+
+namespace lyx {
+namespace fs = boost::filesystem;
+
+using support::libFileSearch;
+using support::makeDisplayPath;
+
+using boost::bind;
+using boost::regex;
+using boost::smatch;
+
+#ifndef CXX_GLOBAL_CSTD
+using std::exit;
+#endif
 
-using lyx::textclass_type;
-using std::pair;
-using std::make_pair;
 using std::endl;
+using std::equal_to;
 using std::find_if;
+using std::make_pair;
 using std::sort;
+using std::string;
+using std::pair;
+using std::ifstream;
 
 
 // Gets textclass number from name
 pair<bool, textclass_type> const
-LyXTextClassList::NumberOfClass(string const & textclass) const
+LyXTextClassList::numberOfClass(string const & textclass) const
 {
        ClassList::const_iterator cit =
-               find_if(classlist.begin(), classlist.end(),
-                       lyx::compare_memfun(&LyXTextClass::name, textclass));
-       return cit != classlist.end() ?
-               make_pair(true, textclass_type(cit - classlist.begin())) :
+               find_if(classlist_.begin(), classlist_.end(),
+                       bind(equal_to<string>(),
+                            bind(&LyXTextClass::name, _1),
+                            textclass));
+
+       return cit != classlist_.end() ?
+               make_pair(true, textclass_type(cit - classlist_.begin())) :
                make_pair(false, textclass_type(0));
 }
 
@@ -54,45 +68,45 @@ LyXTextClassList::NumberOfClass(string const & textclass) const
 LyXTextClass const &
 LyXTextClassList::operator[](textclass_type textclass) const
 {
-       classlist[textclass].load();
-       if (textclass < classlist.size())
-               return classlist[textclass];
+       classlist_[textclass].load();
+       if (textclass < classlist_.size())
+               return classlist_[textclass];
        else
-               return classlist[0];
-}
-
-
-void LyXTextClassList::Add(LyXTextClass const & t)
-{
-       classlist.push_back(t);
+               return classlist_[0];
 }
 
 
 // used when sorting the textclass list.
-class less_textclass_desc {
+class less_textclass_avail_desc
+       : public std::binary_function<LyXTextClass, LyXTextClass, int>
+{
 public:
-       int operator()(LyXTextClass const & tc1, LyXTextClass const & tc2) {
-               return tc1.description() < tc2.description();
+       int operator()(LyXTextClass const & tc1,
+                      LyXTextClass const & tc2) const
+       {
+               // Ordering criteria:
+               //   1. Availability of text class
+               //   2. Description (lexicographic)
+
+               return (tc1.isTeXClassAvailable() && !tc2.isTeXClassAvailable()) ||
+                       (tc1.isTeXClassAvailable() == tc2.isTeXClassAvailable() &&
+                        tc1.description() < tc2.description());
        }
 };
 
 
 // Reads LyX textclass definitions according to textclass config file
-bool LyXTextClassList::Read ()
+bool LyXTextClassList::read()
 {
        LyXLex lex(0, 0);
-       string real_file = LibFileSearch("", "textclass.lst");
+       string real_file = libFileSearch("", "textclass.lst");
        lyxerr[Debug::TCLASS] << "Reading textclasses from `"
-                             << real_file << "'" << endl;
+                             << real_file << '\'' << endl;
 
        if (real_file.empty()) {
                lyxerr << "LyXTextClassList::Read: unable to find "
-                       "textclass file  `" << MakeDisplayPath(real_file, 1000)
+                       "textclass file  `" << to_utf8(makeDisplayPath(real_file, 1000))
                       << "'. Exiting." << endl;
-
-               Alert::alert(_("LyX wasn't able to find its layout descriptions!"),
-                          _("Check that the file \"textclass.lst\""),
-                          _("is installed correctly. Sorry, has to exit :-("));
                return false;
                // This causes LyX to end... Not a desirable behaviour. Lgb
                // What do you propose? That the user gets a file dialog
@@ -109,7 +123,7 @@ bool LyXTextClassList::Read ()
 
        if (!lex.isOK()) {
                lyxerr << "LyXTextClassList::Read: unable to open "
-                       "textclass file  `" << MakeDisplayPath(real_file, 1000)
+                       "textclass file  `" << to_utf8(makeDisplayPath(real_file, 1000))
                       << "'\nCheck your installation. LyX can't continue."
                       << endl;
                return false;
@@ -133,46 +147,90 @@ bool LyXTextClassList::Read ()
                                if (lex.next()) {
                                        string const desc = lex.getString();
                                        lyxerr[Debug::TCLASS] << "Desc: " << desc << endl;
-                                       // This code is run when we have
-                                       // fname, clname and desc
-                                       LyXTextClass tmpl(fname, clname, desc);
-                                       if (lyxerr.debugging(Debug::TCLASS)) {
-                                               tmpl.load();
+                                       if (lex.next()) {
+                                               bool avail = lex.getBool();
+                                               lyxerr[Debug::TCLASS] << "Avail: " << avail << endl;
+                                               // This code is run when we have
+                                               // fname, clname, desc, and avail
+                                               LyXTextClass tmpl(fname, clname, desc, avail);
+                                               if (lyxerr.debugging(Debug::TCLASS)) {
+                                                       tmpl.load();
+                                               }
+                                               classlist_.push_back(tmpl);
                                        }
-                                       Add(tmpl);
                                }
                        }
                }
        }
        lyxerr[Debug::TCLASS] << "End of parsing of textclass.lst" << endl;
 
-       if (classlist.empty()) {
+       if (classlist_.empty()) {
                lyxerr << "LyXTextClassList::Read: no textclasses found!"
                       << endl;
-               Alert::alert(_("LyX wasn't able to find any layout description!"),
-                          _("Check the contents of the file \"textclass.lst\""),
-                          _("Sorry, has to exit :-("));
                return false;
        }
        // Ok everything loaded ok, now sort the list.
-       sort(classlist.begin(), classlist.end(), less_textclass_desc());
+       sort(classlist_.begin(), classlist_.end(), less_textclass_avail_desc());
        return true;
 }
 
 
+std::pair<bool, textclass_type> const
+LyXTextClassList::addTextClass(std::string const & textclass, std::string const & path)
+{
+       // only check for textclass.layout file, .cls can be anywhere in $TEXINPUTS
+       // NOTE: latex class name is defined in textclass.layout, which can be different from textclass
+       string layout_file = path + "/" + textclass + ".layout";
+       if (fs::exists(layout_file)) {
+               lyxerr[Debug::TCLASS] << "Adding class " << textclass << " from directory " << path << endl;
+               // Read .layout file and get description, real latex classname etc
+               //
+               // This is a C++ version of function processLayoutFile in configure.py,
+               // which uses the following regex
+               //     \Declare(LaTeX|DocBook)Class\s*(\[([^,]*)(,.*)*\])*\s*{(.*)}
+               ifstream ifs(layout_file.c_str());
+               static regex const reg("^#\\s*\\\\Declare(LaTeX|DocBook)Class\\s*"
+                       "(?:\\[([^,]*)(?:,.*)*\\])*\\s*\\{(.*)\\}\\s*");
+               string line;
+               while (getline(ifs, line)) {
+                       // look for the \DeclareXXXClass line
+                       smatch sub;
+                       if (regex_match(line, sub, reg)) {
+                               // returns: whole string, classtype (not used here), first option, description
+                               BOOST_ASSERT(sub.size()==4);
+                               // now, add the layout to textclass.
+                               LyXTextClass tmpl(textclass, sub.str(2)==""?textclass:sub.str(2), 
+                                       sub.str(3) + " <" + path + ">", true);
+                               if (lyxerr.debugging(Debug::TCLASS))
+                                       tmpl.load(path);
+                               classlist_.push_back(tmpl);
+                               return make_pair(true, classlist_.size() - 1);
+                       }
+               }
+       }
+       // If .layout is not in local directory, or an invalid layout is found, return false
+       return make_pair(false, textclass_type(0));
+}
+       
+
 // Global variable: textclass table.
 LyXTextClassList textclasslist;
 
+
 // Reads the style files
-void LyXSetStyle()
+bool LyXSetStyle()
 {
-       lyxerr[Debug::TCLASS] << "LyXSetStyle: parsing configuration...\n";
+       lyxerr[Debug::TCLASS] << "LyXSetStyle: parsing configuration..." << endl;
 
-       if (!textclasslist.Read()) {
+       if (!textclasslist.read()) {
                lyxerr[Debug::TCLASS] << "LyXSetStyle: an error occured "
                        "during parsing.\n             Exiting." << endl;
-               exit(1);
+               return false;
        }
 
        lyxerr[Debug::TCLASS] << "LyXSetStyle: configuration parsed." << endl;
+       return true;
 }
+
+
+} // namespace lyx