Extend diff to Gettext rules

See translate/l10n-guide#22

Signed-off-by: Michal Čihař <[email protected]>

list-diff

@@ -23,17 +23,32 @@ def parse_csv(name):
 
 LANGUAGES = parse_csv('languages.csv')
 CLDR = parse_csv('cldr.csv')
+GETTEXT = parse_csv('gettext.csv')
 
 # Iterate over common languages
 for code in sorted(set(CLDR) & set(LANGUAGES)):
     if CLDR[code] != LANGUAGES[code]:
         print('Defintion for {} differs:'.format(code))
-        print('Gettext:', LANGUAGES[code])
+        print('Languages:', LANGUAGES[code])
         print('CLDR:', CLDR[code])
         print()
 
+# Iterate over common languages
+for code in sorted(set(GETTEXT) & set(LANGUAGES)):
+    if GETTEXT[code] != LANGUAGES[code]:
+        print('Defintion for {} differs:'.format(code))
+        print('Languages:', LANGUAGES[code])
+        print('Gettext:', GETTEXT[code])
+        print()
+
 # List missing ones
 for code in sorted(set(CLDR) - set(LANGUAGES) - OLDCODES):
-    print('Defintion for {} missing in gettext:'.format(code))
+    print('Defintion for {} missing in languages:'.format(code))
     print('CLDR:', CLDR[code])
     print()
+
+# List missing ones
+for code in sorted(set(GETTEXT) - set(LANGUAGES) - OLDCODES):
+    print('Defintion for {} missing in languages:'.format(code))
+    print('Gettext:', GETTEXT[code])
+    print()