122 lines
2.9 KiB
C
122 lines
2.9 KiB
C
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/*
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*
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* driver.c
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*
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* DO NOT MOFIFY OR SUBMIT THE CODE IN THIS FILE
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <string.h>
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#include "stack.h"
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/* bar( ) : writes bar of * to stdout */
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void bar(void) { printf("****************************************************************\n"); }
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/* main( ) : driver function to test */
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int main(int argc, char* argv[])
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{
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FILE* testFile; /* Input file */
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char c; /* First char of line input from file */
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int temp; /* Integer input from file */
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char s[2000]; /* Holds line input from file */
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struct Node* headPtr = NULL; /* Pointer to top of stack */
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if (argc != 2)
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{
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printf("Error: missing name of input file\n");
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return 1;
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}
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testFile = fopen(argv[1], "r");
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if ( testFile == NULL )
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{
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printf("Error: unable to open file. Exiting now...\n");
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return 1;
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}
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/* Echo print comment line in input file */
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fgets(s, 2000, testFile);
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printf("Comment: %s\n",s);
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/* Priming read */
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fgets(s, 2, testFile);
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while ( !feof(testFile) )
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{
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switch(s[0])
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{
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case 'p': /* Print */
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printf("Print(): top [ ");
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Print(headPtr);
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printf("] bottom\n");
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break;
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case '+': /* Push */
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fscanf(testFile, "%c", &c);
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fscanf(testFile, "%d", &temp);
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printf("Push(%d)\n", temp);
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Push(&headPtr, temp);
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break;
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case '-': /* Pop */
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fscanf(testFile, "%c", &c);
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temp = Pop(&headPtr);
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printf("Pop(): %d\n", temp);
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break;
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case 's': /* Size */
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printf("Size() = %d\n", Size(headPtr));
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break;
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case 'b': /* Bar */
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bar();
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break;
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case 'c': /* Clear */
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Clear(&headPtr);
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printf("Clear()\n");
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break;
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case '\n':
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break;
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default: /* Handle error */
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printf("Error: unknown command - %c\n", c);
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break;
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};
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fgets(s, 2, testFile);
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if (feof(testFile))
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{
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break;
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}
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}
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Clear(&headPtr);
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fclose(testFile);
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return 0;
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}
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/* Print(...) : outputs the current contents of the stack top to bottom separated by spaces */
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void Print(struct Node* headPtr)
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{
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struct Node* tempPtr = headPtr;
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while (tempPtr != NULL)
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{
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printf("%d ", tempPtr->data);
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tempPtr = tempPtr->nextPtr;
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}
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}
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