[gnome-software/localize-strings] Show English sentence if needed

[Jordi Mas <jmas src gnome org>]

commit a6f54fbf8062fa198731498ea423ebd6bbc36b9d
Author: Jordi Mas <jmas softcatala org>
Date:   Fri May 24 19:44:13 2019 +0200

    Show English sentence if needed

 src/gs-content-rating.c | 27 ++++++++++++++++++++-------
 1 file changed, 20 insertions(+), 7 deletions(-)
---
diff --git a/src/gs-content-rating.c b/src/gs-content-rating.c
index 864b530a..609b73ce 100644
--- a/src/gs-content-rating.c
+++ b/src/gs-content-rating.c
@@ -9,7 +9,7 @@
 
 #include <glib/gi18n.h>
 #include <string.h>
-
+#include <glib/gprintf.h>
 #include "gs-content-rating.h"
 
 const gchar *
@@ -358,6 +358,18 @@ gs_content_rating_key_value_to_str (const gchar *id, AsContentRatingValue value)
        return NULL;
 }
 
+static gchar translated[128][5];
+
+static const char* get_esrb_string(gchar* output, gchar* source, gchar* translate) {
+
+       int equal = g_strcmp0 (source, translate);
+       if (equal == 0)
+               return source;
+
+       g_sprintf (output, _("%s (%s)"), source, translate);
+       return output;
+}
+
 /* data obtained from https://en.wikipedia.org/wiki/Video_game_rating_system */
 const gchar *
 gs_utils_content_rating_age_to_str (GsContentRatingSystem system, guint age)
@@ -502,16 +514,17 @@ gs_utils_content_rating_age_to_str (GsContentRatingSystem system, guint age)
        }
        if (system == GS_CONTENT_RATING_SYSTEM_ESRB) {
                if (age >= 18)
-                       return _("Adults Only");
+                       return get_esrb_string(translated[0], "Adults Only", _("Adults Only"));
                if (age >= 17)
-                       return _("Mature");
+                       return get_esrb_string(translated[1], "Mature", _("Mature"));
                if (age >= 13)
-                       return _("Teen");
+                       return get_esrb_string(translated[2], "Teen", _("Teen"));
                if (age >= 10)
-                       return _("Everyone 10+");
+                       return get_esrb_string(translated[3], "Everyone 10+", _("Everyone 10+"));
                if (age >= 6)
-                       return _("Everyone");
-               return _("Early Childhood");
+                       return get_esrb_string(translated[4], "Everyone", _("Everyone"));
+
+               return get_esrb_string(translated[5], "Early Childhood", _("Early Childhood"));
        }
        /* IARC = everything else */
        if (age >= 18)