main()
{
dataBlockT db;
string line, cmd, token, var;
int pos;
printf("List structure test program\n");
printf("Type \"help\" for help\n");
db = NewDataBlock();
while (TRUE) {
printf(">");
line = GetLine();
SetScannerString(db->scanner, line);
cmd = ConvertToLowerCase(ReadToken(db->scanner));
if (IsVariableName(cmd)) {
var = cmd;
token = ReadToken(db->scanner);
if (StringEqual(token, "")) {
DisplayStringList(GetValue(db, var));
} else if (StringEqual(token, "=")) {
ParseOperation(db, var);
} else {
Error("Unexpected token %s", token);
}
} else if (StringEqual(cmd, "help")) {
HelpCmd();
} else if (StringEqual(cmd, "quit")) {
break;
} else {
SaveToken(db->scanner, cmd);
ParseOperation(db, NULL);
}
}
}
//******************************************************************************
//
// FUNCTION: CmdParser
//
// USAGE: Parses commands to find debug actions
//
//
// INPUT: cmdBuffer - buffer containing input string
//
// OUTPUT: N/A
//
// GLOBALS: debugParameters, globalCurrentCmdListPtr
//
//******************************************************************************
static BOOL CmdParser(BYTE *cmdBuffer, ROM CMD_LIST_STRUCT *cmdListToUse)
{
BYTE cmdSearchCounter = 0;
BOOL cmdStringMatchFound = FALSE;
BYTE *cmdBufferPtr;
char *cmdString;
ROM DEBUG_CMD_STRUCT *debugCmdStructPtr;
BYTE sizeOfDebugList;
globalCurrentCmdListPtr = cmdListToUse;
sizeOfDebugList = cmdListToUse->numOfCmdsInList;
//Look for help command
cmdBufferPtr = cmdBuffer;
if (*cmdBufferPtr++ == 'h' &&
*cmdBufferPtr++ == 'e' &&
*cmdBufferPtr++ == 'l' &&
*cmdBufferPtr++ == 'p' )
{
HelpCmd();
return TRUE;
}
while (cmdSearchCounter < sizeOfDebugList && !cmdStringMatchFound)
{
BOOL byteMatchContinue = TRUE;
cmdBufferPtr = cmdBuffer;
debugCmdStructPtr = &(cmdListToUse->debugCmdList[cmdSearchCounter]);
cmdString = debugCmdStructPtr->cmdString;
/*
DebugMsg("Matching Command: ");
DebugMsg(cmdString);
DebugMsg("\n\r");
*/
do
{
if (*cmdString != ASCII_NULL)
{
//Case sensitivity is not matched
if (( (*cmdBufferPtr >= 'a' && *cmdBufferPtr <= 'z') ||
(*cmdBufferPtr >= 'A' && *cmdBufferPtr <= 'Z') ) &&
( (*cmdString >= 'a' && *cmdString <= 'z') ||
(*cmdString >= 'A' && *cmdString <= 'Z') ) )
{
if ( (*cmdString & 0x1F) != (*cmdBufferPtr & 0x1F) )
{
byteMatchContinue = FALSE;
}
}
else if ( *cmdString != *cmdBufferPtr )
byteMatchContinue = FALSE;
cmdString++;
cmdBufferPtr++;
}
//
//CmdString Terminated with all matching
//
else
{
byteMatchContinue = FALSE;
//CmdBuffer Terminated with all matching
if (*cmdBufferPtr == ASCII_SPACE || *cmdBufferPtr == NULL)
{
//
// MATCH FOUND
//
cmdStringMatchFound = TRUE;
cmdBuffer = cmdBufferPtr;
}
}
} while ( byteMatchContinue && cmdBufferPtr != NULL);
cmdSearchCounter++;
}
//Skip Spaces, look for space after command
while (*cmdBuffer == ASCII_SPACE)
cmdBuffer++;
//
// Match found
//
if (cmdStringMatchFound)
{
BYTE numOfCmdParameters = debugCmdStructPtr->numOfCmdParameters;
BYTE numOfCmdParametersFound = 0;
SWORD parsedParameter;
BOOL invalidNumeralFound = FALSE;
//
// Recursive parsing of subcommands
//
if (debugCmdStructPtr->subCmdList != NULL)
{
if (CmdParser(cmdBuffer, (CMD_LIST_STRUCT*)debugCmdStructPtr->subCmdList) == TRUE)
{
return TRUE;
}
else
{
DebugMsg("the command is not complete, please type 'cmd help' for list \n\r");
}
}
//
// Now Parse Numerical Arguments
//
while ( (numOfCmdParametersFound < MAX_NUM_DEBUG_PARAMETERS) && (*cmdBuffer != NULL) && !invalidNumeralFound )
{
parsedParameter = 0;
//parse hex
if ( *cmdBuffer == '0' && *(cmdBuffer + 1) == 'x')
{
cmdBuffer += 2;
while (*cmdBuffer != NULL && *cmdBuffer != ASCII_SPACE)
{
parsedParameter *= 16;
if (*cmdBuffer >= '0' && *cmdBuffer <= '9')
{
parsedParameter += (*cmdBuffer & 0xF);
}
else if ( (*cmdBuffer >= 'a' && *cmdBuffer <= 'f') ||
(*cmdBuffer >= 'A' && *cmdBuffer <= 'F') )
{
parsedParameter += (*cmdBuffer & 0xF) + 9;
}
// Invalid Hex Numeral Found, Let Parameter Parser Terminate
else
{
invalidNumeralFound = TRUE;
}
cmdBuffer++;
}
}
else if (*cmdBuffer =='b')
{
cmdBuffer++;
while (*cmdBuffer != NULL && *cmdBuffer != ASCII_SPACE)
{
parsedParameter = parsedParameter << 1;
if (*cmdBuffer == '0' || *cmdBuffer == '1')
{
parsedParameter += *cmdBuffer & 0x1;
}
// Invalid Binary Numeral Found, Let Parameter Parser Terminate
else
{
invalidNumeralFound = TRUE;
}
cmdBuffer++;
}
}
else
{
BOOL isNegative = FALSE;
if (*cmdBuffer == '-')
{
cmdBuffer++;
isNegative = TRUE;
}
while (*cmdBuffer != NULL && *cmdBuffer != ASCII_SPACE)
{
parsedParameter = parsedParameter * 10;
if (*cmdBuffer >= '0' && *cmdBuffer <= '9')
{
parsedParameter += *cmdBuffer & 0xF;
}
// Invalid Decimall Found, Let Parameter Parser Terminate
else
{
invalidNumeralFound = TRUE;
}
cmdBuffer++;
}
if (isNegative)
{
parsedParameter *= -1;
}
}
debugParameters[numOfCmdParametersFound++] = parsedParameter;
//Skip Spaces, look for space after command
while (*cmdBuffer == ASCII_SPACE)
cmdBuffer++;
}
//
// Now Command Function
//
if ( ( (numOfCmdParameters == numOfCmdParametersFound) ||
( numOfCmdParameters == NUMOFCMDPARAMETERS_CANBEANYSIZE))
&& !invalidNumeralFound)
{
numOfDebugParametersFound = numOfCmdParametersFound;
if (debugCmdStructPtr->CmdFunctionPtr != NULL)
debugCmdStructPtr->CmdFunctionPtr(debugParameters);
return (TRUE);
}
}
return (FALSE);
}
