X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=libs%2Fmidi%2B%2B2%2Fparser.cc;h=8e3af64504407f8cdbf5e9377256bbdac1a2a3b6;hb=acb795980b5cc5bd1d52ccabaab64e4f135e8888;hp=60a321cefb2e1ea2ca6dcaae17fcff1f9a8f036c;hpb=c83389b8ec5fef9553a401e6123b7e55702af9e2;p=ardour.git

diff --git a/libs/midi++2/parser.cc b/libs/midi++2/parser.cc
index 60a321cefb..8e3af64504 100644
--- a/libs/midi++2/parser.cc
+++ b/libs/midi++2/parser.cc
@@ -105,8 +105,7 @@ Parser::midi_event_type_name (eventType t)
 }
 
 Parser::Parser (Port &p) 
-	: _port (p)
-
+	: _port(p)
 {
 	trace_stream = 0;
 	trace_prefix = "";
@@ -326,9 +325,10 @@ void
 Parser::scanner (unsigned char inbyte)
 {
 	bool statusbit;
+        boost::optional<int> edit_result;
 
 	// cerr << "parse: " << hex << (int) inbyte << dec << " state = " << state << " msgindex = " << msgindex << " runnable = " << runnable << endl;
-
+	
 	/* Check active sensing early, so it doesn't interrupt sysex. 
 	   
 	   NOTE: active sense messages are not considered to fit under
@@ -386,9 +386,11 @@ Parser::scanner (unsigned char inbyte)
 	}
 
 	if (rtmsg) {
-		if (edit (&inbyte, 1) >= 0 && !_offline) {
+		boost::optional<int> res = edit (&inbyte, 1);
+		
+		if (res.get_value_or (1) >= 0 && !_offline) {
 			realtime_msg (inbyte);
-		}
+		} 
 		
 		return;
 	} 
@@ -419,17 +421,22 @@ Parser::scanner (unsigned char inbyte)
 		}
 		cerr << dec << endl;
 #endif
-		if (msgindex > 0 && (edit.empty() || !(*edit (msgbuf, msgindex) >= 0))) {
-			if (!possible_mmc (msgbuf, msgindex) || _mmc_forward) {
-				if (!possible_mtc (msgbuf, msgindex) || _mtc_forward) {
-					if (!_offline) {
-						sysex (*this, msgbuf, msgindex);
+		if (msgindex > 0) {
+
+			boost::optional<int> res = edit (msgbuf, msgindex);
+
+			if (res.get_value_or (1) >= 0) {
+				if (!possible_mmc (msgbuf, msgindex) || _mmc_forward) {
+					if (!possible_mtc (msgbuf, msgindex) || _mtc_forward) {
+						if (!_offline) {
+							sysex (*this, msgbuf, msgindex);
+						}
 					}
 				}
+				if (!_offline) {
+					any (*this, msgbuf, msgindex);
+				} 
 			}
-			if (!_offline) {
-				any (*this, msgbuf, msgindex);
-			} 
 		}
 	}
 	
@@ -490,7 +497,10 @@ Parser::scanner (unsigned char inbyte)
 		
 	case NEEDONEBYTE:
 		/* We've completed a 1 or 2 byte message. */
-		if (edit.empty() || !(*edit (msgbuf, msgindex) == 0)) {
+
+                edit_result = edit (msgbuf, msgindex);
+                
+		if (edit_result.get_value_or (1)) {
 			
 			/* message not cancelled by an editor */