//**********************************************************************
// Pop the executive from the nested executive stack that is
// contained in the nested anchor that is contained in the command
public void nestedPop(CmdLineCmd aCmd)
{
// Guard
if (aCmd.mNestedAnchor == null)
{
return;
}
// Pop the executive from the nested executive stack
aCmd.mNestedAnchor.nestedPop();
}
//**********************************************************************
// Push the executive onto the nested executive stack that is
// contained in the nested anchor that is contained in the command
public void nestedPush(CmdLineCmd aCmd, BaseCmdLineExec aNextExec)
{
// Guard
if (aCmd.mNestedAnchor == null)
{
return;
}
// Push the executive onto the nested executive stack
aCmd.mNestedAnchor.nestedPush(aNextExec);
}
public static void execute(BaseCmdLineExec aExec)
{
aExec.reset();
bool tGoing = true;
while (tGoing)
{
// Read command line
CmdLineCmd tCmd = new CmdLineCmd();
String tCParBuff = Console.ReadLine();
tCmd.putCmdLineString(tCParBuff);
// Toggle print
if (tCmd.isCmd("P"))
{
Prn.ToggleSuppress();
}
// Exit
else if (tCmd.isCmd("EXIT") || tCmd.isCmd("E"))
{
aExec.executeExit();
tGoing = false;
}
// Execute command
else
{
aExec.execute(tCmd);
if (tCmd.isBadCmd())
{
Console.WriteLine("INVALID COMMAND");
Console.WriteLine("-----------------------------------------");
}
}
}
}
//**********************************************************************
// This is called by an executer to execute a single command line.
// It is passed in a pointer to the command and a pointer to an
// command line file executer. The pointers are stored so as to
// be available to inherited class methods used to process specific
// commands.
public abstract void execute(CmdLineCmd aCmd);
//**********************************************************************
//**********************************************************************
//**********************************************************************
// This method applies a command line executive to process all of the
// command lines in the file
public void execute(BaseCmdLineExec aExec)
{
// Guard
if (mReader == null)
{
return;
}
//--------------------------------------------------------------
//--------------------------------------------------------------
//--------------------------------------------------------------
// Locals
// Command line executive for current nesting level
BaseCmdLineExec tExec = aExec;
// Command line string for current line
String tCmdLine;
// Loop line number
int tLineNumber = 0;
// Nested anchor. This is used to manage files that contain nested records,
// which are processed by nested executives.
CmdLineExecNestedAnchor tNestedAnchor = new CmdLineExecNestedAnchor();
// Initialize to the initial executive
tNestedAnchor.initialize(aExec);
//--------------------------------------------------------------
//--------------------------------------------------------------
//--------------------------------------------------------------
// Loop to read each command line in the file
tLineNumber = 0;
bool tGoing = true;
while (tGoing)
{
// Command for current line
CmdLineCmd tCmd = new CmdLineCmd();
// Set the command nested anchor pointer. This is piggybacked
// onto the command so that it can be used by the executive.
tCmd.mNestedAnchor = tNestedAnchor;
tLineNumber++;
// Read command line
tCmdLine = mReader.ReadLine();
if (tCmdLine == null)
{
break;
}
// If the command line is not empty and not a comment
// then process it, else go on to the next line
if (tCmdLine.Length > 0)
{
// Put command line string to command line command
// for parsing
tCmd.putCmdLineString(tCmdLine);
// Process the parsed command line
if (tCmd.isCmd("EXIT"))
{
// If exit then exit the loop
tGoing = false;
}
// If not an exit then process the parsed command line
else
{
// If tExec is not zero
if (tExec != null)
{
// Call the executive to process the command
tExec.execute(tCmd);
}
// Else tExec is not valid, there was a prior unrecognized Begin
// and zero was nestedPushed
else
{
if (tCmd.isCmd("END"))
{
// Pop the executive from the nested executive stack
// This will balance the unrecognized Begin
tNestedAnchor.nestedPop();
}
}
// If the command pushed to the anchor stack
if (tNestedAnchor.mChangeFlag)
{
// If the command pushed a new executive onto the anchor
// stack because it entered a new nested section, or if it
// popped an executive from the anchor stack because it is
// leaving a nested section then get the next executive from
// the anchor stack
tNestedAnchor.mChangeFlag = false;
tExec = tNestedAnchor.mExec;
}
// If the command set the exit flag then exit the loop
if (tExec != null)
{
if (tExec.mExitFlag)
{
tGoing = false;
}
}
}
}
}
}
