Worked on the mysql variable retrieval foundation.

Global.cpp

@@ -1,5 +1,6 @@
 #include "Global.h"
 #include "Exception.h"
+#include "__mysql.h"
 #include <iostream>
 
 namespace jet {
@@ -41,7 +42,11 @@ namespace jet {
 	 } if(variable.ifNext("@")) {
 	    // TODO: should only allow environment variables. Allow substitution.
 	 } else {
-	    return variables[renderVariableName(name, variable)];
+	    coreutils::MString splitName = renderVariableName(name, variable);
+	    splitName.split(".");
+	    if(splitName.getList().size() == 1)
+	      return variables[splitName[0]];
+	    return getSessionVariable(splitName);
 	 }
 	 throw coreutils::Exception("expected variable name or type designator.");	 
       } if(variable.ifNext("#[")) {
@@ -64,5 +69,12 @@ namespace jet {
       renderVariableName(name, variable);	 
       return name;
    }
-   
+
+   coreutils::ZString Global::getSessionVariable(coreutils::MString &splitName) {
+      if(sessions.find(splitName[0]) == sessions.end())
+	throw coreutils::Exception("requested session is not available in variable.");
+      sessions[splitName[0]]->getColumnValue(splitName[1]);
+      return splitName[1];
+   }
+      
 }