From f7dac7e1fa76bbdd1614810eb937a9dbd9e8d75d Mon Sep 17 00:00:00 2001
From: Michael Schroeder <mls@suse.de>
Date: Thu, 11 Mar 2010 12:14:23 +0100
Subject: [PATCH] - fix language code lookup for fallback languages
 [bnc#584644] - change solvable_lookup_str_lang interface a bit for libzypp

---
 examples/solv.c | 14 +++++++++++++-
 src/pool.h      |  2 +-
 src/solvable.c  | 28 ++++++++++------------------
 3 files changed, 24 insertions(+), 20 deletions(-)

diff --git a/examples/solv.c b/examples/solv.c
index d0bced4..46aea12 100644
--- a/examples/solv.c
+++ b/examples/solv.c
@@ -2269,6 +2269,14 @@ main(int argc, char **argv)
     usage(1);
 
   pool = pool_create();
+
+#if 0
+  {
+    const char *langs[] = {"de_DE", "de", "en"};
+    pool_set_languages(pool, langs, sizeof(langs)/sizeof(*langs));
+  }
+#endif
+
 #ifdef FEDORA
   pool->obsoleteusescolors = 1;
 #endif
@@ -2449,7 +2457,11 @@ main(int argc, char **argv)
 		}
 	      else
 		{
-		  const char *sum = solvable_lookup_str_lang(s, SOLVABLE_SUMMARY, "de");
+#if 1
+		  const char *sum = solvable_lookup_str_lang(s, SOLVABLE_SUMMARY, "de", 1);
+#else
+		  const char *sum = solvable_lookup_str_poollang(s, SOLVABLE_SUMMARY);
+#endif
 		  printf("  - %s [%s]\n", solvable2str(pool, s), s->repo->name);
 		  if (sum)
 		    printf("    %s\n", sum);
diff --git a/src/pool.h b/src/pool.h
index d82a0d1..7459143 100644
--- a/src/pool.h
+++ b/src/pool.h
@@ -222,7 +222,7 @@ Id solvable_lookup_id(Solvable *s, Id keyname);
 unsigned int solvable_lookup_num(Solvable *s, Id keyname, unsigned int notfound);
 const char *solvable_lookup_str(Solvable *s, Id keyname);
 const char *solvable_lookup_str_poollang(Solvable *s, Id keyname);
-const char *solvable_lookup_str_lang(Solvable *s, Id keyname, const char *lang);
+const char *solvable_lookup_str_lang(Solvable *s, Id keyname, const char *lang, int usebase);
 int solvable_lookup_bool(Solvable *s, Id keyname);
 int solvable_lookup_void(Solvable *s, Id keyname);
 char * solvable_get_location(Solvable *s, unsigned int *medianrp);
diff --git a/src/solvable.c b/src/solvable.c
index c7f71d8..441af97 100644
--- a/src/solvable.c
+++ b/src/solvable.c
@@ -74,7 +74,7 @@ solvable_lookup_str(Solvable *s, Id keyname)
 }
 
 static const char *
-solvable_lookup_str_base(Solvable *s, Id keyname, Id basekeyname)
+solvable_lookup_str_base(Solvable *s, Id keyname, Id basekeyname, int usebase)
 {
   Pool *pool;
   const char *str, *basestr;
@@ -94,7 +94,7 @@ solvable_lookup_str_base(Solvable *s, Id keyname, Id basekeyname)
   /* search for a solvable with same name and same base that has the
    * translation */
   if (!pool->whatprovides)
-    return basestr;
+    return usebase ? basestr : 0;
   /* we do this in two passes, first same vendor, then all other vendors */
   for (pass = 0; pass < 2; pass++)
     {
@@ -113,7 +113,7 @@ solvable_lookup_str_base(Solvable *s, Id keyname, Id basekeyname)
 	    return str;
 	}
     }
-  return basestr;
+  return usebase ? basestr : 0;
 }
 
 const char *
@@ -154,17 +154,8 @@ solvable_lookup_str_poollang(Solvable *s, Id keyname)
   for (i = 0; i < pool->nlanguages; i++, row++)
     {
       if (!*row)
-	{
-	  char *p;
-	  const char *kn;
-
-	  kn = id2str(pool, keyname);
-          p = sat_malloc(strlen(kn) + strlen(pool->languages[i]) + 2);
-	  sprintf(p, "%s:%s", kn, pool->languages[i]);
-	  *row = str2id(pool, p, 1);
-          sat_free(p);
-	}
-      str = solvable_lookup_str_base(s, *row, keyname);
+        *row = pool_id2langid(pool, keyname, pool->languages[i], 1);
+      str = solvable_lookup_str_base(s, *row, keyname, 0);
       if (str)
 	return str;
     }
@@ -172,14 +163,15 @@ solvable_lookup_str_poollang(Solvable *s, Id keyname)
 }
 
 const char *
-solvable_lookup_str_lang(Solvable *s, Id keyname, const char *lang)
+solvable_lookup_str_lang(Solvable *s, Id keyname, const char *lang, int usebase)
 {
   if (s->repo)
     {
-      const char *str;
       Id id = pool_id2langid(s->repo->pool, keyname, lang, 0);
-      if (id && (str = solvable_lookup_str_base(s, id, keyname)) != 0)
-        return str;
+      if (id)
+        return solvable_lookup_str_base(s, id, keyname, usebase);
+      if (!usebase)
+	return 0;
     }
   return solvable_lookup_str(s, keyname);
 }
-- 
2.7.4