Make Jsgf iterable of JsgfRule.

Implement iterable behaviour in Jsgf to be able to iterate over its
rules using compact notation of target languages.

git-svn-id: svn+ssh://svn.code.sf.net/p/cmusphinx/code/trunk/sphinxbase@12386 94700074-3cef-4d97-a70e-9c8c206c02f5

Author: mbait

swig/jsgf.i

@@ -85,3 +85,12 @@
     return jsgf_rule_public($self);
   }
 }
+
+%runtime %{
+jsgf_rule_t * next_JsgfIterator(jsgf_rule_iter_t *iter)
+{
+    return jsgf_rule_iter_rule(iter);
+}
+%}
+
+/* vim: set ts=4 sw=4: */

swig/sphinxbase.i

@@ -93,11 +93,11 @@ typedef struct {} Config;
 typedef struct {} FrontEnd;
 typedef struct {} Feature;
 typedef struct {} FsgModel;
-typedef struct {} Jsgf;
 typedef struct {} JsgfRule;
 typedef struct {} NGramModel;
 
 iterable(NGramModelSet, ngram_model_set, NGramModel)
+iterable(Jsgf, jsgf_rule, JsgfRule)
 
 #ifdef HAS_DOC
 %include pydoc.i