added more code for namespace handling.

added initial code to define a pool dicitonary
fixed a compiler bug in resolving a class variable

stix/lib/main.c

@@ -189,6 +189,7 @@ static char* syntax_error_msg[] =
 	". expected",
 	"| expected",
 	"> expected",
+	":= expected",
 	"identifier expected",
 	"integer expected",
 	"primitive: expected",
@@ -215,7 +216,9 @@ static char* syntax_error_msg[] =
 	"too large block",
 	"wrong primitive number",
 	"#include error",
-	"wrong namespace name"
+	"wrong namespace name",
+	"duplicate pool dictionary name",
+	"literal expected"
 };
 
 stix_uch_t str_stix[] = { 'S', 't', 'i', 'x' };