/* zero is not counted as a positive number */
int getPosInt ()
{
int value = 0;
/* clear white space characters */
int ch;
ch = getc(stdin);
while (!isdigit(ch))
{
if ('\n' == ch) /* error \n ==> no integer given */
return 0;
if (!isspace(ch)) /* error non white space ==> integer not given next */
{
clearToEoln();
return 0;
}
ch = getc(stdin);
}
value = ch - '0';
ch = getc(stdin);
while (isdigit(ch))
{
value = value * 10 + ch - '0';
ch = getc(stdin);
}
ungetc (ch, stdin); /* put the last read character back in input stream */
/* Integer value of 0 is an error in this program */
if (0 == value)
clearToEoln();
return value;
}
int main (int argc, char **argv)
{
char *input;
token inputToken;
//DEBUGGING MODE
int debuggingMode = 0;
int i;
for(i = 1; i < argc; i++) {
if(argv[i] != NULL) {
if(strcmp(argv[1], "-d\n")) {
debuggingMode = 1;
}
}
}
//DEBUGGING MODE
printf ("Starting Expression Evaluation Program\n\n");
printf ("Enter Expression: ");
inputToken = getInputToken (stdin);
while (inputToken.type != QUIT)
{
/* check first Token on Line of input */
if(inputToken.type == HELP)
{
printCommands();
clearToEoln(stdin);
}
else if(inputToken.type == ERROR)
{
printf ("Invalid Input - For a list of valid commands, type ?\n");
clearToEoln(stdin);
}
else if(inputToken.type == EOLN)
{
printf ("Blank Line - Do Nothing\n");
/* blank line - do nothing */
}
else
{
processExpression(inputToken, stdin, debuggingMode);
}
printf ("\nEnter Expression: ");
inputToken = getInputToken (stdin);
}
printf ("Quitting Program\n");
return 1;
}
int main (int argc, char **argv)
{
char *input;
token inputToken;
// ************START ADDITION
int debug = 0;
gen_parse_args( argc, argv, &debug);
// ************END ADDITON
printf ("Starting Expression Evaluation Program\n\n");
printf ("Enter Expression: ");
inputToken = getInputToken (stdin);
while (inputToken.type != QUIT)
{
/* check first Token on Line of input */
if(inputToken.type == HELP)
{
printCommands();
clearToEoln(stdin);
}
else if(inputToken.type == ERROR)
{
printf ("Invalid Input - For a list of valid commands, type ?\n");
clearToEoln(stdin);
}
else if(inputToken.type == EOLN)
{
printf ("Blank Line - Do Nothing\n");
/* blank line - do nothing */
}
else
{
processExpression(inputToken, stdin, debug);
}
printf ("\nEnter Expression: ");
inputToken = getInputToken (stdin);
}
printf ("Quitting Program\n");
return 1;
}
/* Print out a list of the commands for this program */
void printCommands()
{
printf ("The commands for this program are:\n\n");
printf ("q - to quit the program\n");
printf ("? - to list the accepted commands\n");
printf ("a <size> <name> - to add a group to the wait list\n");
printf ("c <size> <name> - to add a call-ahead group to the wait list\n");
printf ("w <name> - to specify a call-ahead group is now waiting in the restaurant\n");
printf ("r <table-size> - to retrieve the first waiting group that can fit at the available table size\n");
printf ("l <name> - list how many groups are ahead of the named group\n");
printf ("d - display the wait list information\n");
/* clear input to End of Line */
clearToEoln();
}
int main (int argc, char **argv)
{
int dbug=0;
char *input;
int ch;
list *l = lst_create();
if(argc ==2){
if(argv[1][0] == '-' && argv[1][1] == 'd'){
dbug = 1; // ./a.out -d
printf("\nDebug mode activated\n");
}
}
printf ("Starting Restaurant Wait List Program\n\n");
printf ("Enter command: ");
while ((ch = getNextNWSChar ()) != EOF)
{
/* check for the various commands */
if ('q' == ch)
{
printf ("Quitting Program\n");
return (0);
}
else if ('?' == ch)
{
printCommands();
}
else if('a' == ch)
{
doAdd(l,dbug);
}
else if('c' == ch)
{
doCallAhead(l,dbug);
}
else if('w' == ch)
{
doWaiting(l,dbug);
}
else if('r' == ch)
{
doRetrieve(l,dbug);
}
else if('l' == ch)
{
doList(l,dbug);
}
else if('d' == ch)
{
doDisplay(l,dbug);
}
else
{
printf ("%c - in not a valid command\n", ch);
printf ("For a list of valid commands, type ?\n");
clearToEoln();
}
printf ("\nEnter command: ");
}
printf ("Quiting Program - EOF reached\n");
lst_free(l,dbug);
return 1;
}
