* optionally ignore invalid (unknown) message flag letters, update callers

lib/mu-flags.c

@@ -162,7 +162,8 @@ mu_flags_to_str_s (MuFlags flags, MuFlagType types)
 
 
 MuFlags
-mu_flags_from_str (const char *str, MuFlagType types)
+mu_flags_from_str (const char *str, MuFlagType types,
+		   gboolean ignore_invalid)
 {
 	const char *cur;
 	MuFlags flag;
@@ -174,6 +175,13 @@ mu_flags_from_str (const char *str, MuFlagType types)
 		MuFlags f;
 
 		f = mu_flag_from_char (*cur);
+
+		if (f == MU_FLAG_INVALID) {
+			if (ignore_invalid)
+				continue;
+			return MU_FLAG_INVALID;
+		}
+
 		if (mu_flag_type (f) & types)
 			flag |= f;
 	}

lib/mu-flags.h

@@ -115,13 +115,14 @@ const char* mu_flags_to_str_s (MuFlags flags, MuFlagType types);
  * Get the (OR'ed) flags corresponding to a string representation
  *
  * @param str the string representation
- * @param types the flag types to acceps (other will be ignored)
+ * @param types the flag types to accept (other will be ignored)
+ * @param ignore invalid if TRUE, ignore invalid flags, otherwise return
+ * MU_FLAG_INVALID if an invalid flag is encountered
  *
  * @return the (OR'ed) flags
  */
-MuFlags mu_flags_from_str (const char *str, MuFlagType types);
+MuFlags mu_flags_from_str (const char *str, MuFlagType types,
-
+			   gboolean ignore_invalid);
-
 
 /**
  * Update #oldflags with the flags in #str, where #str consists of the

lib/mu-maildir.c

@@ -690,8 +690,9 @@ mu_maildir_get_flags_from_path (const char *path)
 		    (info[1] != ','))
 			return MU_FLAG_NONE;
 		else
-			return mu_flags_from_str (&info[2],
+			return mu_flags_from_str
-						  MU_FLAG_TYPE_MAILFILE);
+				(&info[2], MU_FLAG_TYPE_MAILFILE,
+				 TRUE /*ignore invalid */);
 	}
 }
 

lib/mu-msg.c

@@ -677,7 +677,7 @@ mu_msg_contact_foreach (MuMsg *msg, MuMsgContactForeachFunc func,
 
 
 static int
-cmp_str (const char* s1, const char *s2)
+cmp_str (const char *s1, const char *s2)
 {
 	if (s1 == s2)
 		return 0;

lib/mu-msg.h

@@ -250,8 +250,8 @@ time_t          mu_msg_get_date            (MuMsg *msg);
  *
  * @param msg valid MuMsg* instance
  *
- * @return the fileflags as logically OR'd #Mu MsgFlags or 0 if
+ * @return the file/content flags as logically OR'd #MuMsgFlags or 0
- * there are none.
+ * if there are none. Non-standard flags are ignored.
  */
 MuFlags     mu_msg_get_flags      (MuMsg *msg);
 

mu/mu-cmd-server.c

@@ -832,7 +832,8 @@ get_flags (const char *path, const char *flagstr)
 			return mu_flags_from_str_delta (flagstr, oldflags,
 							MU_FLAG_TYPE_ANY);
 		} else
-			return  mu_flags_from_str (flagstr, MU_FLAG_TYPE_ANY);
+			return  mu_flags_from_str (flagstr, MU_FLAG_TYPE_ANY,
+						   TRUE /*ignore invalid*/);
 	}
 }