#ifndef COUNTERS_H

 #define COUNTERS_H

 #include <glib.h>

 /* Special counters live in the private use area */

 enum {

     COUNTER_ILLUSTRATION=0xE000,

     NO_SPECIAL_COUNTERS

 };

 struct counters {

     GTree *matching;

     int c_unders;

 };

 void increment_matching(struct counters *counters,gunichar ch,gboolean open);

 int matching_count(const struct counters *counters,gunichar ch,gboolean open);

 int matching_difference(const struct counters *counters,gunichar ch);

 void counters_reset(struct counters *counters);

 void counters_destroy(struct counters *counters);

 #endif /* COUNTERS_H */