1 files changed, 121 insertions, 44 deletions

diff --git a/src/FbTk/I18n.cc b/src/FbTk/I18n.cc
index f53e5ed..18eb67c 100644
--- a/src/FbTk/I18n.cc
+++ b/src/FbTk/I18n.cc
@@ -37,6 +37,7 @@
 
 #include <cstdlib>
 #include <cstring>
+#include <cstdarg>
 #include <iostream>
 
 #ifdef HAVE_LOCALE_H
@@ -65,15 +66,54 @@ using std::string;
 
 namespace {
 
-const nl_catd INVALID_CATALOG = ((nl_catd)(-1));
-nl_catd s_catalog_fd = INVALID_CATALOG;
+const char     UTF8_SUFFIX[]     = "-UTF-8.cat";
+const size_t   UTF8_SUFFIX_LEN   = sizeof(UTF8_SUFFIX)-1; // without \0
+const char     DEFAULT_CATFILE[] = "fluxbox.cat";
+const char     ENV_CATFILE[]     = "FLUXBOX_CATFILE";
+const char     ENV_CATDIR[]      = "FLUXBOX_CATDIR";
+
+const nl_catd  INVALID_CATALOG   = (nl_catd)(-1);
+nl_catd        s_catalog_fd      = INVALID_CATALOG;
+
+
+const char* getCatalogDir() {
+    const char* cat_dir = getenv(ENV_CATDIR);
+    if (cat_dir) {
+        return cat_dir;
+    }
+    return LOCALEPATH;
+}
+
+
+std::string join_str(size_t n, ...) {
+    std::string s;
+    va_list args;
+    va_start(args, n);
+    for (; n > 0; n--) {
+        s.append(va_arg(args, const char*));
+    }
+    return s;
+}
 
 }
 
 
 namespace FbTk {
 
+
+// initialize the i18n-system be opening the catalog-file
+// named by 'catalog'. per default we expect 'catalog' to 
+// be 0/NULL, the code picks a sane default then:
+//
+// - environment variable FLUXBOX_CATFILE is set? use it
+// - DEFAULT_CATFILE ("fluxbox.cat")
+// - the utf8 encoded translation for the current locale
+//
+// handling things this was allows us to test catalog files
+// without putting them into the install path 
+// $PREFIX/share/fluxbox/nls/XYZ/
 void I18n::init(const char* catalog) {
+
     static bool init = false;
     if (init) {
         return;
@@ -81,50 +121,87 @@ void I18n::init(const char* catalog) {
 
 #if defined(NLS) && defined(HAVE_CATOPEN)
 
+    if (!catalog) {
+        const char* c = getenv(ENV_CATFILE);
+        if (!c) {
+            c = DEFAULT_CATFILE;
+        }
+        catalog = c;
+    }
+
     FbStringUtil::init();
 
+    int flag;
+
     I18n& i18n = I18n::instance();
+    const string dir = getCatalogDir();
+    const string locale = i18n.m_locale;
+    string clean_locale = locale;
+    size_t i;
 
-    string filename = LOCALEPATH;
-    filename += '/';
-    filename += i18n.m_locale;
-    filename += '/';
-    filename += catalog;
+    // clean the locale, we have to append something later on
+    i = clean_locale.find('.');
+    if (i != string::npos)
+        clean_locale.erase(i);
 
-    if (!FileUtil::isRegularFile(filename.c_str()) && i18n.m_locale != "C" && FbStringUtil::haveUTF8()) {
-        // try the UTF-8 catalog, this also picks up situations where
-        // the codeset somehow isn't specified
+#ifdef MCLoadBySet
+    flag = MCLoadBySet;
+#else
+    flag = NL_CAT_LOCALE;
+#endif
 
-        // remove everything after @
-        string::size_type index = i18n.m_locale.find('.');
-        // erase all characters starting at index
-        if (index != string::npos)
-            i18n.m_locale.erase(index);
+    struct { std::string catalog; std::string locale; bool utf8; } _catalog[] = {
 
-        i18n.m_locale.append(".UTF-8");
-        i18n.m_utf8_translate = true;
+        // first try pure 'catalog'. catopen() will use NLSPATH if it's
+        // set and replaces '%N' by 'catalog'. eg: with catalog="fluxbox.cat"
+        // "/usr/share/fluxbox/nls/C/%N" becomes "/usr/share/fluxbox/nls/C/fluxbox.cat"
+        { string(catalog), locale, false },
 
-        filename = LOCALEPATH;
-        filename += '/';
-        filename += i18n.m_locale;
-        filename += '/';
-        filename += catalog;
-    }
+        // try full-path to 'catalog'
+        { join_str(5, dir.c_str(), "/", locale.c_str(), "/", catalog), locale, false },
 
-#ifdef MCLoadBySet
-    s_catalog_fd = catopen(filename.c_str(), MCLoadBySet);
-#else // !MCLoadBySet
-    s_catalog_fd = catopen(filename.c_str(), NL_CAT_LOCALE);
-#endif // MCLoadBySet
+        // try the UTF-8 catalog, this also picks up situations where
+        // the codeset somehow isn't specified
+        { join_str(5, dir.c_str(), "/", clean_locale.c_str(), ".UTF-8/", catalog),
+            join_str(2, clean_locale.c_str(), ".UTF8"), true},
+
+    };
+
+    for (i = 0; i < sizeof(_catalog)/sizeof(_catalog[0]); i++) {
+
+        if (_catalog[i].utf8 && locale == "C") {
+            continue;
+        }
+
+        const char* fname = _catalog[i].catalog.c_str();
+
+        s_catalog_fd = catopen(fname, flag);
+        if (s_catalog_fd == INVALID_CATALOG) {
+            continue;
+        }
+
+        i18n.m_locale = _catalog[i].locale;
+        if (FbStringUtil::haveUTF8()) {
+            if (_catalog[i].utf8) {
+                i18n.m_utf8_translate = true;
+            } else {
+                size_t n = _catalog[i].catalog.rfind(UTF8_SUFFIX);
+                if (n != std::string::npos && (n + UTF8_SUFFIX_LEN) == _catalog[i].catalog.size()) {
+                    i18n.m_utf8_translate = true;
+                }
+            }
+        }
+        break;
+    }
 
     if (s_catalog_fd == INVALID_CATALOG) {
-        cerr<<"Warning: Failed to open file("<<filename<<")"<<endl
+        cerr<<"Warning: Failed to open file("<< catalog <<")"<<endl
             <<"for translation, using default messages."<<endl;
     }
 #endif // HAVE_CATOPEN
 }
 
-I18n::I18n():m_multibyte(false), m_utf8_translate(false) {
+I18n::I18n() : m_multibyte(false), m_utf8_translate(false) {
 #if defined(HAVE_SETLOCALE) && defined(NLS)
     //make sure we don't get 0 to m_locale string
     char *temp = setlocale(LC_MESSAGES, "");
@@ -146,14 +223,13 @@ I18n::I18n():m_multibyte(false), m_utf8_translate(false) {
 
         // truncate any encoding off the end of the locale
 
-        // remove everything after @
         string::size_type index = m_locale.find('@');
         if (index != string::npos)
-            m_locale.erase(index); //erase all characters starting at index
-        // remove everything before =
+            m_locale.erase(index);
+
         index = m_locale.find('=');
         if (index != string::npos)
-            m_locale.erase(0,index+1); //erase all characters starting up to index
+            m_locale.erase(0, index+1);
     }
 #endif // defined(HAVE_SETLOCALE) && defined(NLS)
 }
@@ -162,7 +238,7 @@ I18n::I18n():m_multibyte(false), m_utf8_translate(false) {
 I18n::~I18n() {
 
 #if defined(NLS) && defined(HAVE_CATCLOSE)
-    if (s_catalog_fd != (nl_catd)-1)
+    if (s_catalog_fd != INVALID_CATALOG)
         catclose(s_catalog_fd);
 #endif // HAVE_CATCLOSE
 }
@@ -178,27 +254,28 @@ I18n& I18n::instance() {
 FbString I18n::getMessage(int set_number, int message_number,
                              const char *default_message, bool translate_fb) const {
 
+    FbString msg(default_message);
+
 #if defined(NLS) && defined(HAVE_CATGETS)
     if (s_catalog_fd != INVALID_CATALOG) {
         const char *ret = catgets(s_catalog_fd, set_number, message_number, default_message);
-        // can't translate, leave it in raw ascii (utf-8 compatible)
-        if (ret == default_message || ret == NULL)
-            return default_message;
 
-        if (!m_utf8_translate && translate_fb)
+        if (ret == default_message || ret == NULL) {
+             // can't translate, leave it in raw ascii (utf-8 compatible)
+        } else if (!m_utf8_translate && translate_fb)
             // Local input, UTF-8 output
-            return FbStringUtil::LocaleStrToFb(ret);
+            msg = FbStringUtil::LocaleStrToFb(ret);
         else if (m_utf8_translate && !translate_fb)
             // UTF-8 input, local output
-            return FbStringUtil::FbStrToLocale(ret);
+            msg = FbStringUtil::FbStrToLocale(ret);
         else
             // UTF-8 input, UTF-8 output OR
             // local input, local output
-            return ret;
+            msg = ret;
     }
-    else
+
 #endif // NLS && HAVE_CATGETS
-        return default_message;
+    return msg;
 }
 
 } // end namespace FbTk