diff -r adc06e9e8470 -r 7f0bbee5c8b0 bookloupe/counters.h
--- a/bookloupe/counters.h	Mon Sep 23 21:18:27 2013 +0100
+++ b/bookloupe/counters.h	Wed Oct 30 17:11:11 2013 +0000
@@ -3,18 +3,42 @@
 
 #include <glib.h>
 
+#define COUNTERS_ERROR counters_error_quark()
+
+typedef enum
+{
+    COUNTERS_ERROR_FAILED,                 /* Generic failure */
+} CountersError;
+
 /* Special counters live in the private use area */
 enum {
     COUNTER_ILLUSTRATION=0xE000,
     NO_SPECIAL_COUNTERS
 };
 
+typedef enum {
+    OPENING_QUOTE,
+    CLOSING_QUOTE,
+    NEUTRAL_QUOTE,
+    INVALID_QUOTE
+} QuoteClass;
+
+#define QUOTE_CLASS(c) \
+    (((c)==CHAR_RD_QUOTE || (c)==CHAR_RS_QUOTE)?CLOSING_QUOTE: \
+     ((c)==CHAR_LD_QUOTE || (c)==CHAR_LS_QUOTE || (c)==CHAR_OPEN_SQUOTE)?\
+     OPENING_QUOTE:((c)==CHAR_DQUOTE || (c)==CHAR_SQUOTE)?NEUTRAL_QUOTE:\
+     INVALID_QUOTE)
+
 struct counters {
     GTree *matching;
-    long quot;
     int c_unders;
+    GSList *open_quotes;
 };
 
+GQuark counters_error_quark(void);
+gboolean innermost_quote_matches(struct counters *counters,gunichar ch);
+gboolean count_quote(struct counters *counters,gunichar ch,QuoteClass klass,
+  GError **err);
 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);