added support for state sync/reset packets

src/match.c

@@ -109,7 +109,6 @@ void * psyc_dict_lookup (const PsycDict *dict, size_t size,
 {
 	size_t cursor = 1;
 	uint8_t i, m = 0;
-	//memset(&matching, -1, sizeof matching);
 
 	if (keylen < 2 || key[0] != '_')
 		return 0;

src/packet.c

@@ -63,9 +63,9 @@ void psyc_list_init (PsycList *list, PsycString *elems, size_t num_elems,
 inline
 size_t psyc_modifier_length (PsycModifier *m)
 {
-	size_t length = 1 + // oper
-		m->name.length + 1 + // name\t
-		m->value.length + 1; // value\n
+	size_t length = 2; // oper\n
+	if (m->name.length > 0)
+		length += m->name.length + 1 + m->value.length; // name\tvalue
 
 	if (m->flag == PSYC_MODIFIER_NEED_LENGTH) // add length of length if needed
 		length += psyc_num_length(m->value.length) + 1; // SP length

src/parse.c

@@ -21,7 +21,7 @@ typedef enum {
 	PARSE_INSUFFICIENT = 1,
 	PARSE_COMPLETE = 100,
 	PARSE_INCOMPLETE = 101,
-} parseRC;
+} ParseRC;
 
 /**
  * Parse variable name or method name.
@@ -29,7 +29,7 @@ typedef enum {
  * @return PARSE_ERROR or PARSE_SUCCESS
  */
 static inline
-parseRC psyc_parse_keyword (PsycParseState *state, PsycString *name)
+ParseRC psyc_parse_keyword (PsycParseState *state, PsycString *name)
 {
 	name->data = state->buffer.data + state->cursor;
 	name->length = 0;
@@ -54,7 +54,7 @@ parseRC psyc_parse_keyword (PsycParseState *state, PsycString *name)
  * @return PARSE_COMPLETE or PARSE_INCOMPLETE
  */
 static inline
-parseRC psyc_parse_binary_value (PsycParseState *state, PsycString *value,
+ParseRC psyc_parse_binary_value (PsycParseState *state, PsycString *value,
                                  size_t *length, size_t *parsed)
 {
 	size_t remaining = *length - *parsed;
@@ -81,13 +81,16 @@ parseRC psyc_parse_binary_value (PsycParseState *state, PsycString *value,
  * @return PARSE_ERROR or PARSE_SUCCESS
  */
 static inline
-parseRC psyc_parse_modifier (PsycParseState *state, char *oper,
+ParseRC psyc_parse_modifier (PsycParseState *state, char *oper,
                              PsycString *name, PsycString *value)
 {
 	*oper = *(state->buffer.data + state->cursor);
 	ADVANCE_CURSOR_OR_RETURN(PSYC_PARSE_INSUFFICIENT);
 
-	parseRC ret = psyc_parse_keyword(state, name);
+	if (state->part == PSYC_PART_CONTENT && state->buffer.data[state->cursor] == '\n')
+		return PARSE_SUCCESS; // only oper is present, used for state sync/reset
+
+	ParseRC ret = psyc_parse_keyword(state, name);
 	if (ret == PARSE_ERROR)
 		return PSYC_PARSE_ERROR_MOD_NAME;
 	else if (ret != PARSE_SUCCESS)
@@ -162,7 +165,7 @@ PsycParseRC psyc_parse (PsycParseState *state, char *oper,
 		PP(("Invalid flag combination"))
 #endif
 
-	parseRC ret; // a return value
+	ParseRC ret; // a return value
 	size_t pos = state->cursor;	// a cursor position
 
 	// Start position of the current line in the buffer
@@ -326,8 +329,6 @@ PsycParseRC psyc_parse (PsycParseState *state, char *oper,
 				{
 					ADVANCE_CURSOR_OR_RETURN(PSYC_PARSE_INSUFFICIENT);
 				}
-
-				// fall thru
 			}
 			else // No method, which means the packet should end now.
 			{
@@ -335,6 +336,7 @@ PsycParseRC psyc_parse (PsycParseState *state, char *oper,
 				state->startc = state->cursor;
 				goto PSYC_PART_END;
 			}
+			// fall thru
 
 		case PSYC_PART_DATA:
 		PSYC_PART_DATA:

src/render.c

@@ -46,12 +46,12 @@ static inline
 size_t psyc_render_modifier (PsycModifier *mod, char *buffer)
 {
 	size_t cur = 0;
-
 	buffer[cur++] = mod->oper;
+
+	if (mod->name.length > 0)
+	{
 		memcpy(buffer + cur, mod->name.data, mod->name.length);
 		cur += mod->name.length;
-	if (cur <= 1)
-		return cur; // error, name can't be empty
 
 		if (mod->flag == PSYC_MODIFIER_NEED_LENGTH)
 		{
@@ -62,8 +62,9 @@ size_t psyc_render_modifier (PsycModifier *mod, char *buffer)
 		buffer[cur++] = '\t';
 		memcpy(buffer + cur, mod->value.data, mod->value.length);
 		cur += mod->value.length;
-	buffer[cur++] = '\n';
+	}
 
+	buffer[cur++] = '\n';
 	return cur;
 }
 

src/uniform.c

@@ -77,7 +77,7 @@ int psyc_uniform_parse (PsycUniform *uni, char *str, size_t length)
 					break;
 
 				case PSYC_UNIFORM_PORT:
-					if (psyc_is_numeric(c)) {
+					if (psyc_is_numeric(c) || (uni->port.length == 0 && c == '-')) {
 						uni->port.length++;
 						break;
 					}

test/packets/00-no-body

@@ -0,0 +1,6 @@
+:_source	psyc://foo.example.com/
+:_target	psyc://bar.example.com/
+
+:_foo	bar
+:_baz	qux
+|

test/packets/00-state-reset

@@ -0,0 +1,7 @@
+:_source	psyc://foo.example.com/
+:_target	psyc://bar.example.com/
+
+=
+=_foo	bar
+=_baz	qux
+|

test/packets/00-state-sync

@@ -0,0 +1,5 @@
+:_source	psyc://foo.example.com/
+:_target	psyc://bar.example.com/
+
+?
+|