The branch, master, has been updated.

- Log -----------------------------------------------------------------

commit 16fd47ad8f5d78a3b7266520b0868c1e2bd0dcac
Author: Jean-Marc Lasgouttes <[email protected]>
Date:   Sun Jul 15 22:22:10 2012 +0200

    Fix bug #7741: incorrect locale when starting R from LyX?
    
    The goal here is to get rid of the old code that modified variables
    LANGUAGE and LC_ALL, therefore creating the problems mentionned
    in the ticket.
    
    In the new system, there is no explicit "GUI" message handler, that
    needs to be reset at each language change. Instead, getGuiMessages
    calls getMessages with the correct parameter. This allows to simplify
    greatly the code and to remove a lot of old cruft.

diff --git a/src/LyX.cpp b/src/LyX.cpp
index d872b81..cd1354b 100644
--- a/src/LyX.cpp
+++ b/src/LyX.cpp
@@ -141,10 +141,6 @@ struct LyX::Impl
 {
        Impl() : spell_checker_(0), apple_spell_checker_(0), 
aspell_checker_(0), enchant_checker_(0), hunspell_checker_(0)
        {
-               // Set the default User Interface language as soon as possible.
-               // The language used will be derived from the environment
-               // variables.
-               messages_["GUI"] = Messages();
        }
 
        ~Impl()
@@ -265,25 +261,6 @@ Messages & LyX::messages(string const & language)
 }
 
 
-void setRcGuiLanguage()
-{
-       LASSERT(singleton_, /**/);
-       if (lyxrc.gui_language == "auto")
-               return;
-       Language const * language = languages.getLanguage(lyxrc.gui_language);
-       if (language) {
-               LYXERR(Debug::LOCALE, "Setting LANGUAGE to " << 
language->code());
-               if (!setEnv("LANGUAGE", language->code()))
-                       LYXERR(Debug::LOCALE, "\t... failed!");
-       }
-       LYXERR(Debug::LOCALE, "Setting LC_ALL to en_US");
-       if (!setEnv("LC_ALL", "en_US"))
-               LYXERR(Debug::LOCALE, "\t... failed!");
-       Messages::init();
-       singleton_->pimpl_->messages_["GUI"] = Messages();
-}
-
-
 int LyX::exec(int & argc, char * argv[])
 {
        // Minimal setting of locale before parsing command line
@@ -753,9 +730,6 @@ bool LyX::init()
        if (!readRcFile("lyxrc.dist"))
                return false;
 
-       // Set the language defined by the distributor.
-       setRcGuiLanguage();
-
        // Set the PATH correctly.
 #if !defined (USE_POSIX_PACKAGING)
        // Add the directory containing the LyX executable to the path
@@ -796,9 +770,6 @@ bool LyX::init()
        // Read lyxrc.dist again to be able to override viewer auto-detection.
        readRcFile("lyxrc.dist");
 
-       // Set again the language defined by the distributor.
-       setRcGuiLanguage();
-
        system_lyxrc = lyxrc;
        system_formats = formats;
        pimpl_->system_converters_ = pimpl_->converters_;
@@ -814,9 +785,6 @@ bool LyX::init()
        if (!readLanguagesFile("languages"))
                return false;
 
-       // Set the language defined by the user.
-       setRcGuiLanguage();
-
        LYXERR(Debug::INIT, "Reading layouts...");
        // Load the layouts
        LayoutFileList::get().read();
@@ -1396,7 +1364,19 @@ Messages const & getMessages(string const & language)
 Messages const & getGuiMessages()
 {
        LASSERT(singleton_, /**/);
-       return singleton_->pimpl_->messages_["GUI"];
+       // A cache to translate full language name to language code
+       static string last_language = "auto";
+       static string code;
+       if (lyxrc.gui_language != last_language) {
+               if (lyxrc.gui_language == "auto")
+                       code.clear();
+               else {
+                       Language const * l = 
languages.getLanguage(lyxrc.gui_language);
+                       code = l ? l->code() : string();
+               }
+               last_language = lyxrc.gui_language;
+       }
+       return singleton_->messages(code);
 }
 
 
diff --git a/src/LyX.h b/src/LyX.h
index 0b1e02e..bc898d6 100644
--- a/src/LyX.h
+++ b/src/LyX.h
@@ -151,7 +151,6 @@ private:
        friend CmdDef & theTopLevelCmdDef();
        friend SpellChecker * theSpellChecker();
        friend void setSpellChecker();
-       friend void setRcGuiLanguage();
        friend void emergencyCleanup();
        friend void execBatchCommands();
        friend void lyx_exit(int exit_code);
@@ -164,8 +163,6 @@ void emergencyCleanup();
 /// \p exit_code is 0 by default, if a non zero value is passed,
 /// emergencyCleanup() will be called before exiting.
 void lyx_exit(int exit_code);
-/// Set the language defined by the user.
-void setRcGuiLanguage();
 /// Execute batch commands if available.
 void execBatchCommands();
 
diff --git a/src/client/Makefile.am b/src/client/Makefile.am
index e68cad2..f69d63e 100644
--- a/src/client/Makefile.am
+++ b/src/client/Makefile.am
@@ -29,9 +29,7 @@ endif
 
 SOURCEFILES = \
   boost.cpp \
-  client.cpp \
-  gettext.cpp \
-  Messages.cpp
+  client.cpp
 
 HEADERFILES = \
   Messages.h
diff --git a/src/client/Messages.cpp b/src/client/Messages.cpp
deleted file mode 100644
index 9f54bc7..0000000
--- a/src/client/Messages.cpp
+++ /dev/null
@@ -1,190 +0,0 @@
-/* \file Messages.cpp
- * This file is part of LyX, the document processor.
- * Licence details can be found in the file COPYING.
- *
- * \author Lars Gullik Bjønnes
- *
- * Full author contact details are available in file CREDITS.
- */
-
-#include <config.h>
-
-#include "Messages.h"
-#include "support/debug.h"
-#include "support/filetools.h"
-#include "support/Package.h"
-#include "support/unicode.h"
-
-#include <cerrno>
-#include <ostream>
-
-using namespace std;
-using namespace lyx::support;
-
-namespace lyx {
-
-
-#ifdef ENABLE_NLS
-
-#if 0
-
-#include <locale>
-
-// This version of the Pimpl utilizes the message capability of
-// libstdc++ that is distributed with GNU G++.
-class Messages::Pimpl {
-public:
-       typedef messages<char>::catalog catalog;
-
-       Pimpl(string const & l)
-               : lang_(l),
-                 loc_gl(lang_.c_str()),
-                 mssg_gl(use_facet<messages<char> >(loc_gl))
-       {
-               //lyxerr << "Messages: language(" << l
-               //       << ") in dir(" << dir << ")" << endl;
-
-               string const locale_dir = 
package().locale_dir().toFilesystemEncoding();
-               cat_gl = mssg_gl.open(PACKAGE, loc_gl, locale_dir.c_str());
-
-       }
-
-       ~Pimpl()
-       {
-               mssg_gl.close(cat_gl);
-       }
-
-       string const get(string const & msg) const
-       {
-               return mssg_gl.get(cat_gl, 0, 0, msg);
-       }
-private:
-       ///
-       string lang_;
-       ///
-       locale loc_gl;
-       ///
-       messages<char> const & mssg_gl;
-       ///
-       catalog cat_gl;
-};
-#else
-
-#ifdef HAVE_LOCALE_H
-#  include <locale.h>
-#endif
-
-#  if HAVE_GETTEXT
-#    include <libintl.h>      // use the header already in the system *EK*
-#  else
-#    include "intl/libintl.h"
-#  endif
-
-// This is a more traditional variant.
-class Messages::Pimpl {
-public:
-       Pimpl(string const & l)
-               : lang_(l)
-       {
-               //lyxerr << "Messages: language(" << l
-               //       << ") in dir(" << dir << ")" << endl;
-
-       }
-
-       ~Pimpl() {}
-
-       docstring const get(string const & m) const
-       {
-               if (m.empty())
-                       return from_ascii(m);
-
-               char * o = setlocale(LC_ALL, 0);
-               string old;
-               if (o)
-                       old = o;
-               char * n = setlocale(LC_ALL, lang_.c_str());
-               if (!n)
-                       // If we are unable to honour the request we just
-                       // return what we got in.
-                       return from_ascii(m);
-               errno = 0;
-               string const locale_dir = 
package().locale_dir().toFilesystemEncoding();
-               char const * c = bindtextdomain(PACKAGE, locale_dir.c_str());
-               int e = errno;
-               if (e) {
-                       LYXERR(Debug::DEBUG, "Messages::get()" << '\n'
-                               << "Error code: " << errno << '\n'
-                               << "Lang, mess: " << lang_ << " " << m << '\n'
-                               << "Directory : " << 
package().locale_dir().absFileName() << '\n'
-                               << "Rtn value : " << c);
-               }
-
-               if (!bind_textdomain_codeset(PACKAGE, ucs4_codeset)) {
-                       LYXERR(Debug::DEBUG, "Messages::get()" << '\n'
-                               << "Error code: " << errno << '\n'
-                               << "Codeset   : " << ucs4_codeset << '\n');
-               }
-
-               textdomain(PACKAGE);
-
-               char const * tmp = m.c_str();
-               char const * msg = gettext(tmp);
-               docstring translated;
-               if (!msg) {
-                       lyxerr << "Undefined result from gettext" << endl;
-                       translated = from_ascii(tmp);
-               } else if (msg == tmp) {
-                       //lyxerr << "Same as entered returned" << endl;
-                       translated = from_ascii(tmp);
-               } else {
-                       LYXERR(Debug::DEBUG, "We got a translation");
-                       char_type const * ucs4 = reinterpret_cast<char_type 
const *>(msg);
-                       translated = ucs4;
-               }
-               setlocale(LC_ALL, old.c_str());
-               return translated;
-       }
-private:
-       ///
-       string lang_;
-};
-#endif
-
-#else // ENABLE_NLS
-// This is the dummy variant.
-class Messages::Pimpl {
-public:
-       Pimpl(string const &) {}
-
-       ~Pimpl() {}
-
-       docstring const get(string const & m) const
-       {
-               return from_ascii(m);
-       }
-};
-#endif
-
-
-Messages::Messages()
-       : pimpl_(new Pimpl(""))
-{}
-
-
-Messages::Messages(string const & l)
-       : pimpl_(new Pimpl(l))
-{}
-
-
-// We need this for the sake of scoped_ptr
-Messages::~Messages()
-{}
-
-
-docstring const Messages::get(string const & msg) const
-{
-       return pimpl_->get(msg);
-}
-
-
-} // namespace lyx
diff --git a/src/client/Messages.h b/src/client/Messages.h
deleted file mode 100644
index 5832f91..0000000
--- a/src/client/Messages.h
+++ /dev/null
@@ -1,40 +0,0 @@
-// -*- C++ -*-
-/* \file Messages.h
- * This file is part of LyX, the document processor.
- * Licence details can be found in the file COPYING.
- *
- * \author Lars Gullik Bjønnes
- *
- * Full author contact details are available in file CREDITS.
- */
-
-#ifndef MESSAGES_H
-#define MESSAGES_H
-
-#include "support/docstring.h"
-
-#include <boost/scoped_ptr.hpp>
-
-
-namespace lyx {
-
-///
-class Messages {
-public:
-       ///
-       Messages();
-       ///
-       Messages(std::string const & l);
-       ///
-       ~Messages();
-       ///
-       docstring const get(std::string const & msg) const;
-private:
-       class Pimpl;
-       ::boost::scoped_ptr<Pimpl> pimpl_;
-};
-
-
-} // namespace lyx
-
-#endif
diff --git a/src/client/client.cpp b/src/client/client.cpp
index 3283566..105c1e9 100644
--- a/src/client/client.cpp
+++ b/src/client/client.cpp
@@ -16,6 +16,7 @@
 #include "support/FileName.h"
 #include "support/FileNameList.h"
 #include "support/lstrings.h"
+#include "support/Messages.h"
 #include "support/unicode.h"
 
 #include <boost/scoped_ptr.hpp>
@@ -74,6 +75,21 @@ struct LyXRC {
 void lyx_exit(int)
 {}
 
+// Dummy language support
+Messages const & getGuiMessages()
+{
+       static Messages lyx_messages;
+
+       return lyx_messages;
+}
+
+
+Messages const & getMessages(string const &)
+{
+       return getGuiMessages();
+}
+
+
 namespace support {
 
 string itoa(unsigned int i)
diff --git a/src/client/gettext.cpp b/src/client/gettext.cpp
deleted file mode 100644
index d749602..0000000
--- a/src/client/gettext.cpp
+++ /dev/null
@@ -1,66 +0,0 @@
-/**
- * \file src/gettext.cpp
- * This file is part of LyX, the document processor.
- * Licence details can be found in the file COPYING.
- *
- * \author Lars Gullik Bjønnes
- * \author Jean-Marc Lasgouttes
- *
- * Full author contact details are available in file CREDITS.
- */
-
-#include <config.h>
-
-#include "support/gettext.h"
-#include "Messages.h"
-
-using namespace std;
-
-namespace lyx {
-
-
-#ifdef HAVE_LOCALE_H
-#  include <locale.h>
-#endif
-
-
-namespace {
-
-Messages const & getLyXMessages()
-{
-       static Messages lyx_messages;
-
-       return lyx_messages;
-}
-
-} // anon namespace
-
-
-docstring const _(string const & str)
-{
-       return getLyXMessages().get(str);
-}
-
-
-#ifdef ENABLE_NLS
-
-void locale_init()
-{
-#  ifdef HAVE_LC_MESSAGES
-       setlocale(LC_MESSAGES, "");
-#  endif
-       setlocale(LC_CTYPE, "");
-       setlocale(LC_NUMERIC, "C");
-}
-
-#else // ENABLE_NLS
-
-void locale_init()
-{
-       setlocale(LC_NUMERIC, "C");
-}
-
-#endif
-
-
-} // namespace lyx
diff --git a/src/frontends/qt4/GuiApplication.cpp 
b/src/frontends/qt4/GuiApplication.cpp
index b00fe2d..b855067 100644
--- a/src/frontends/qt4/GuiApplication.cpp
+++ b/src/frontends/qt4/GuiApplication.cpp
@@ -1995,10 +1995,7 @@ void GuiApplication::exit(int status)
 
 void GuiApplication::setGuiLanguage()
 {
-       // Set the language defined by the user.
-       setRcGuiLanguage();
-
-       QString const default_language = toqstr(Messages::defaultLanguage());
+       QString const default_language = toqstr(getGuiMessages().language());
        LYXERR(Debug::LOCALE, "Trying to set default locale to: " << 
default_language);
        QLocale const default_locale(default_language);
        QLocale::setDefault(default_locale);
diff --git a/src/support/Messages.cpp b/src/support/Messages.cpp
index 8d85460..cf9bf7b 100644
--- a/src/support/Messages.cpp
+++ b/src/support/Messages.cpp
@@ -22,19 +22,18 @@
 
 #include <cerrno>
 
+#  define N_(str) (str)              // for marking strings to be translated
+
 using namespace std;
 
 namespace lyx {
 
-// Instanciate static member.
-string Messages::main_lang_;
-
 void cleanTranslation(docstring & trans) 
 {
        /*
          Some english words have different translations, depending on
          context. In these cases the original string is augmented by
-         context information (e.g. "To:[[as in 'From page x to page
+         context information (e.g. "To:[[[as in 'From page x to page
          y']]" and "To:[[as in 'From format x to format y']]". This
          means that we need to filter out everything in double square
          brackets at the end of the string, otherwise the user sees
@@ -68,22 +67,6 @@ using namespace lyx::support;
 
 namespace lyx {
 
-void Messages::setDefaultLanguage()
-{
-       char const * env_lang[5] = {"LANGUAGE", "LC_ALL", "LC_MESSAGES",
-               "LC_MESSAGE", "LANG"};
-       for (size_t i = 0; i != 5; ++i) {
-               string const lang = getEnv(env_lang[i]);
-               if (lang.empty())
-                       continue;
-               Messages::main_lang_ = lang;
-               return;
-       }
-       // Not found!
-       LYXERR(Debug::LOCALE, "Default language not found!");
-}
-
-
 // This version use the traditional gettext.
 Messages::Messages(string const & l)
        : lang_(l), warned_(false)
@@ -113,17 +96,25 @@ void Messages::init()
        }
 
        textdomain(PACKAGE);
+}
+
 
-       // Reset default language;
-       setDefaultLanguage();
+string Messages::language() const
+{
+       // get the language from the gmo file
+       string const test = N_("[[Replace with the code of your language]]");
+       string const trans = to_utf8(get(test));
+       if (trans == test) {
+               LYXERR0("Something is weird.");
+               return string();
+       } else
+               return trans;
 }
 
 
 bool Messages::available() const
 {
-       string const test = languageTestString();
-       string const trans = to_utf8(get(test));
-       return !trans.empty() && trans != test;
+       return !language().empty();
 }
 
 
diff --git a/src/support/Messages.h b/src/support/Messages.h
index 9ef8dc3..35a3bea 100644
--- a/src/support/Messages.h
+++ b/src/support/Messages.h
@@ -26,19 +26,15 @@ public:
        Messages(std::string const & l = std::string());
        ///
        docstring const get(std::string const & msg) const;
+       /// What is the language associated with this translation?
+       std::string language() const;
        /// Is an (at least partial) translation of this language available?
        bool available() const;
        ///
        static void init();
-       ///
-       static std::string const & defaultLanguage() { return main_lang_; }
 
 private:
        ///
-       static void setDefaultLanguage();
-       ///
-       static std::string main_lang_;
-       ///
        std::string lang_;
        /// Did we warn about unavailable locale already?
        mutable bool warned_;
diff --git a/src/support/filetools.cpp b/src/support/filetools.cpp
index 4f681b0..68c92d8 100644
--- a/src/support/filetools.cpp
+++ b/src/support/filetools.cpp
@@ -30,6 +30,7 @@
 #include "support/gettext.h"
 #include "support/lstrings.h"
 #include "support/os.h"
+#include "support/Messages.h"
 #include "support/Package.h"
 #include "support/Path.h"
 #include "support/Systemcall.h"
@@ -282,7 +283,7 @@ FileName const i18nLibFileSearch(string const & dir, string 
const & name,
           each po file is able to tell us its name. (JMarc)
        */
 
-       string lang = to_ascii(_(languageTestString()));
+       string lang = getGuiMessages().language();
        string const language = getEnv("LANGUAGE");
        if (!lang.empty() && !language.empty())
                lang = language;
diff --git a/src/support/lstrings.cpp b/src/support/lstrings.cpp
index 612d670..1aee6f2 100644
--- a/src/support/lstrings.cpp
+++ b/src/support/lstrings.cpp
@@ -1296,12 +1296,6 @@ int findToken(char const * const str[], string const & 
search_token)
 }
 
 
-string const languageTestString()
-{
-       return N_("[[Replace with the code of your language]]");
-}
-
-
 template<>
 docstring bformat(docstring const & fmt, int arg1)
 {
diff --git a/src/support/lstrings.h b/src/support/lstrings.h
index d0f7480..52b6ee3 100644
--- a/src/support/lstrings.h
+++ b/src/support/lstrings.h
@@ -285,9 +285,6 @@ docstring const getStringFromVector(std::vector<docstring> 
const & vec,
 /// found, else -1. The last item in \p str must be "".
 int findToken(char const * const str[], std::string const & search_token);
 
-/// A test string that is supposed to be translated into the gettext code
-std::string const languageTestString();
-
 template <class Arg1>
 docstring bformat(docstring const & fmt, Arg1);
 

-----------------------------------------------------------------------

Summary of changes:
 src/LyX.cpp                          |   46 +++------
 src/LyX.h                            |    3 -
 src/client/Makefile.am               |    4 +-
 src/client/Messages.cpp              |  190 ----------------------------------
 src/client/Messages.h                |   40 -------
 src/client/client.cpp                |   16 +++
 src/client/gettext.cpp               |   66 ------------
 src/frontends/qt4/GuiApplication.cpp |    5 +-
 src/support/Messages.cpp             |   41 +++-----
 src/support/Messages.h               |    8 +-
 src/support/filetools.cpp            |    3 +-
 src/support/lstrings.cpp             |    6 -
 src/support/lstrings.h               |    3 -
 13 files changed, 51 insertions(+), 380 deletions(-)
 delete mode 100644 src/client/Messages.cpp
 delete mode 100644 src/client/Messages.h
 delete mode 100644 src/client/gettext.cpp


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