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driver.c
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driver.c
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/*
Group Number: 55
Group Member details:
1. Aarjav Jain -- 2018A7PS0222P
2. Pranav Gupta -- 2018A7PS0190P
3. Harsh Sulakhe -- 2018A7PS0186P
*/
#include <stdio.h>
#include "datastructuresandprototypes.h"
#define GRAMMAR_FILE_PATH "grammar.txt"
int main(int argc, char* argv[]) {
if (argc != 2){
printf ("Usage: ./output testcase.txt\n");
return 0;
}
char* SOURCE_CODE_FILE_PATH = argv[1];
FILE* fp = fopen(argv[1], "r");
if (fp == NULL){
printf("Input File Not Found!\n");
return 0;
}
fclose(fp);
grammarNode* Grammar[NUMBER_OF_GRAMMAR_RULES];
tokenStream* TokenStreamPointer = NULL;
parseTree* ParseTree = NULL;
typeExpressionTable* TypeExpressionTable = NULL;
readGrammar(GRAMMAR_FILE_PATH, Grammar);
TokenStreamPointer = tokeniseSourcecode(SOURCE_CODE_FILE_PATH, TokenStreamPointer);
// Menu
int menu_choice = 0;
do {
printf("Please choose an option:\n");
printf("0. Exit\n");
printf("1. Create Parse Tree\n");
printf("2. Traverse the parse tree to construct typeExpressionTable and print errors\n");
printf("3. Print parse tree in the specified format\n");
printf("4. Print typeExpressionTable in the specified format.\n");
scanf("%d", &menu_choice);
switch (menu_choice) {
case 0: {
printf("Exiting.\n");
break;
}
case 1: {
if (ParseTree == NULL){
ParseTree = createParseTree(ParseTree, TokenStreamPointer, Grammar);
printf("Parse Tree Created\n");
}
else
printf("Parse Tree already exists!\n");
break;
}
case 2: {
if (TypeExpressionTable == NULL){
if (ParseTree == NULL){
ParseTree = createParseTree(ParseTree, TokenStreamPointer, Grammar);
// printf("Parse Tree Created\n");
}
traverseParseTree(&ParseTree, &TypeExpressionTable);
printf("Traversal Complete\n");
}
else
printf("Type Expression Table already exists!\n");
break;
}
case 3: {
if (TypeExpressionTable == NULL){
if (ParseTree == NULL){
ParseTree = createParseTree(ParseTree, TokenStreamPointer, Grammar);
// printf("Parse Tree Created\n");
}
traverseParseTree(&ParseTree, &TypeExpressionTable);
printf("Traversal Complete\n");
}
printParseTree(ParseTree);
break;
}
case 4: {
if (TypeExpressionTable == NULL){
if (ParseTree == NULL){
ParseTree = createParseTree(ParseTree, TokenStreamPointer, Grammar);
// printf("Parse Tree Created\n");
}
traverseParseTree(&ParseTree, &TypeExpressionTable);
printf("Traversal Complete\n");
}
printTypeExpressionTable(TypeExpressionTable);
break;
}
default: {
printf("Please choose a valid option.\n\n");
break;
}
}
} while (menu_choice != 0);
return 0;
}