[wmlunits] On translated unit pages, stay on the same page...

...(in the new language) when changing languages instead of jumping
back to the overview.

data/tools/unit_tree/html_output.py

@@ -155,7 +155,6 @@ class HTMLOutput:
         self.is_era = is_era
         self.verbose = verbose
         self.target = "index.html"
-        self.mainline = False
         self.wesnoth = wesnoth
         self.forest = None
         self.translation = Translation(options.transdir, isocode)
@@ -420,8 +419,7 @@ class HTMLOutput:
             labb = lang
             underscore = labb.find("_")
             if underscore > 0: labb = labb[:underscore]
-            
-            if self.mainline:
+            if self.addon == "mainline":
                 write(" <a title=\"%s\" href=\"../%s/%s\">%s</a><br/>\n" % (
                     languages[lang], lang, self.target,
                         labb))
@@ -1020,9 +1018,6 @@ def generate_era_report(addon, isocode, era, wesnoth):
     html = HTMLOutput(isocode, output, addon, eid, True, wesnoth)
     html.target = "%s.html" % eid
     
-    #if eid in wesnoth.is_mainline_era:
-    #    html.mainline = True
-    
     grouper = GroupByFaction(wesnoth, eid)
 
     ename = era.get_text_val("name", translation = html.translate)

data/tools/wmlunits

@@ -159,7 +159,9 @@ def list_contents():
     parse("{core}{campaigns}", "SKIP_CORE")
     info["campaigns"] = list_campaigns("mainline")
 
-    addons = os.listdir(options.addons)
+    addons = []
+    if options.addons:
+        addons = os.listdir(options.addons)
     for i, addon in enumerate(addons):
         if not os.path.isdir(options.addons + "/" + addon): continue
         sys.stdout.write("%4d/%4d " % (1 + i, len(addons)) + addon + " ... ")
@@ -414,7 +416,7 @@ if __name__ == '__main__':
             languages.append(isocode)
         languages.sort()
     else:
-        languages = [options.language]
+        languages = options.language.split(",")
         
     if options.list:
         list_contents()