mlt_repository.[hc]: add mlt_repository_languages helper function for localizing...

git-svn-id: https://mlt.svn.sourceforge.net/svnroot/mlt/trunk/mlt@1100 d19143bc-622f-0410-bfdd-b5b2a6649095

diff --git a/src/framework/mlt_repository.c b/src/framework/mlt_repository.c
index 69c89eb45cbf5ebaa03c763c18ec9bee8cc62ba8..eab27776962237a0f61b63329300ef5e1e55befb 100644 (file)
--- a/src/framework/mlt_repository.c
+++ b/src/framework/mlt_repository.c
@@ -21,6 +21,7 @@
 
 #include "mlt_repository.h"
 #include "mlt_properties.h"
+#include "mlt_tokeniser.h"
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -264,3 +265,64 @@ mlt_properties mlt_repository_metadata( mlt_repository self, mlt_service_type ty
        }
        return metadata;
 }
+
+static char *getenv_locale()
+{
+       char *s = getenv( "LANGUAGE" );
+       if ( s && s[0] )
+               return s;
+       s = getenv( "LC_ALL" );
+       if ( s && s[0] )
+               return s;
+       s = getenv( "LC_MESSAGES" );
+       if ( s && s[0] )
+               return s;
+       s = getenv( "LANG" );
+       if ( s && s[0] )
+               return s;
+       return NULL;
+}
+
+/** Return a list of user-preferred language codes taken from environment variables.
+*/ 
+
+mlt_properties mlt_repository_languages( mlt_repository self )
+{
+       mlt_properties languages = mlt_properties_get_data( &self->parent, "languages", NULL );
+       if ( languages )
+               return languages;
+               
+       const char *locale = getenv_locale();
+       languages = mlt_properties_new();
+       if ( locale )
+       {
+               mlt_tokeniser tokeniser = mlt_tokeniser_init();
+               int count = mlt_tokeniser_parse_new( tokeniser, locale, ":" );
+               if ( count )
+               {
+                       int i;
+                       for ( i = 0; i < count; i++ )
+                       {
+                               char *locale = mlt_tokeniser_get_string( tokeniser, i );
+                               if ( strcmp( locale, "C" ) == 0 || strcmp( locale, "POSIX" ) == 0 )
+                                       locale = "en";
+                               else if ( strlen( locale ) > 2 )
+                                       locale[2] = 0;
+                               char string[21];
+                               snprintf( string, sizeof(string), "%d", i );
+                               mlt_properties_set( languages, string, locale );
+                       }
+               }
+               else
+               {
+                       mlt_properties_set( languages, "0", "en" );
+               }
+               mlt_tokeniser_close( tokeniser );
+       }
+       else
+       {
+               mlt_properties_set( languages, "0", "en" );
+       }
+       mlt_properties_set_data( &self->parent, "languages", languages, 0, ( mlt_destructor )mlt_properties_close, NULL );
+       return languages;
+}

diff --git a/src/framework/mlt_repository.h b/src/framework/mlt_repository.h
index e7b0c67393e81afa52c1a0f9b1c86a47c761179c..1487ec95d9996c01d4b7e07c17875fe2b0b6ab12 100644 (file)
--- a/src/framework/mlt_repository.h
+++ b/src/framework/mlt_repository.h
@@ -62,6 +62,7 @@ extern mlt_properties mlt_repository_producers( mlt_repository self );
 extern mlt_properties mlt_repository_transitions( mlt_repository self );
 extern void mlt_repository_register_metadata( mlt_repository self, mlt_service_type type, const char *service, mlt_metadata_callback, void *callback_data );
 extern mlt_properties mlt_repository_metadata( mlt_repository self, mlt_service_type type, const char *service );
+extern mlt_properties mlt_repository_languages( mlt_repository self );
 
 #endif