grammar.h

/*
Group 36
2017B4A70495P Manan Soni
2017B4A70549P Siddharth Singh
2017B4A70636P Nayan Khanna
2017B4A70740P Aditya Tulsyan
*/

/* Header guard */
#ifndef GRAMMAR_H
#define GRAMMAR_H
/***************/

#include "grammar_structs.h"

typedef struct rule_node { // node for linkedlist of symbols (for LHS of rule list)
    Symbol s;
    struct rule_node *next;
} RuleNode;

typedef struct rule { // LHS -> linked list of symbols (RHS)
    Symbol lhs;
    RuleNode *rhs; // linked list of rules
} Rule;

typedef struct grammar { // Final data structure for
    int num_rules;
    Symbol start_symb;
    Rule* rules; // array of size max_rules consisting of a linked list of rules
} Grammar;

void printGrammar(Grammar* g);
int readGrammar(char *filename, Grammar* g);
char* replace_char(char* str, char find, char replace);
void freeGrammar(Grammar *g);

#endif