Minor fixes

* libmu_sieve/sieve-priv.h (sieve_op_t) <unum>: New field.
* libmu_sieve/sieve.l: Leave one string interpreter slot.

-Subproject commit fd86bf7d44b0c970771830692ae7491447ebe8b1
+Subproject commit 42f4712085b40173eaea58e14b1a579291a6fe3a

@@ -35,6 +35,7 @@ typedef union
   size_t line;
   int inum;
   char *string;
+  unsigned unum;
 } sieve_op_t;
 
 struct mu_locus_range

@@ -642,46 +642,32 @@ str_unescape (char *text, size_t len)
   return str;
 }
 
-enum
-  {
-    interp_encoded_character,
-    interp_variable
-  };
-
-#define MAXINTERP (interp_variable+1)
-mu_i_sv_interp_t interpreter[MAXINTERP];
+static mu_i_sv_interp_t string_interpreter;
 
 static void
 line_finish (void)
 {
-  int i;
   char *str;
   
   mu_opool_append_char (mu_sieve_machine->string_pool, 0);
   str = mu_opool_finish (mu_sieve_machine->string_pool, NULL);
-  for (i = 0; i < MAXINTERP; i++)
+  if (string_interpreter)
     {
-      if (interpreter[i])
+      char *exp;
+      int rc = mu_i_sv_string_expand (str, string_interpreter, NULL, &exp);
+      if (rc == 0)
+	{
+	  mu_opool_free (mu_sieve_machine->string_pool, str);
+	  mu_opool_appendz (mu_sieve_machine->string_pool, exp);
+	  mu_opool_append_char (mu_sieve_machine->string_pool, 0);
+	  free (exp);
+	  str = mu_opool_finish (mu_sieve_machine->string_pool, NULL);
+	}
+      else if (rc != MU_ERR_CANCELED)
 	{
-	  char *exp;
-	  int rc = mu_i_sv_string_expand (str, interpreter[i], NULL, &exp);
-	  if (rc == 0)
-	    {
-	      mu_opool_free (mu_sieve_machine->string_pool, str);
-	      mu_opool_appendz (mu_sieve_machine->string_pool, exp);
-	      mu_opool_append_char (mu_sieve_machine->string_pool, 0);
-	      free (exp);
-	      str = mu_opool_finish (mu_sieve_machine->string_pool, NULL);
-	    }
-	  else if (rc == MU_ERR_CANCELED)
-	    continue;
-	  else
-	    {
-	      mu_diag_at_locus (MU_LOG_ERROR, &mu_sieve_locus,
-				_("error expandind string: %s"),
-				mu_strerror (rc));
-	      break;
-	    }
+	  mu_diag_at_locus (MU_LOG_ERROR, &mu_sieve_locus,
+			    _("error expandind string: %s"),
+			    mu_strerror (rc));
 	}
     }
   yylval.string = str;
@@ -691,6 +677,6 @@ int
 mu_sieve_require_encoded_character (mu_sieve_machine_t mach,
 				    const char *name)
 {
-  interpreter[interp_encoded_character] = mu_i_sv_expand_encoded_char;
+  string_interpreter = mu_i_sv_expand_encoded_char;
   return 0;
 }