bc-grammar.h

Bu dosyanın dokümantasyonuna git.

 
#ifndef BC_GRAMMAR_H
#define BC_GRAMMAR_H
 
 
#include "tokenizer.h"
 
#include <rdesc/grammar.h>
 
#define BC_NT_COUNT 22
#define BC_MAX_ALT_COUNT 13
#define BC_MAX_ALT_SIZE 10
 
enum bc_tk_id {
        TK_PLUS, TK_MINUS, TK_STAR, TK_SLASH, TK_PERCENT, TK_CARET,
        TK_PLUSEQ, TK_MINUSEQ, TK_STAREQ, TK_SLASHEQ, TK_PERCENTEQ, TK_CARETEQ, TK_EQ,
        TK_PLUSPLUS, TK_MINUSMINUS,
        TK_LT, TK_GT, TK_EQEQ, TK_EXCLEQ, TK_LTEQ, TK_GTEQ,
        TK_LPAREN, TK_RPAREN, TK_LCURLY, TK_RCURLY, TK_SEMI, TK_COMMA,
        TK_DEFINE, TK_BREAK, TK_QUIT, TK_PRINT,
        TK_RETURN, TK_FOR, TK_IF, TK_WHILE, TK_CST,
        /* TK_IDENT, TK_INT ve TK_FLOAT tokenizer tarafından tanımlanır */
};
 
enum bc_nt_id {
        NT_STMT, NT_STMTS,
 
        NT_ADD_OP, NT_MUL_OP,
        NT_ASGN_OP, NT_REL_OP,
        NT_UNARY_OP, NT_INCR_DECR_OP, NT_OPT_INCR_DECR_OP,
 
        NT_ADD_EXPR, NT_ADD_EXPR_REST,
        NT_MUL_EXPR, NT_MUL_EXPR_REST,
        NT_EXP_EXPR, NT_EXP_EXPR_REST,
        NT_FACTOR, NT_ATOM,
        NT_ASGN_EXPR, NT_REL_EXPR, NT_REL_EXPR_OPT_REL,
        NT_OPT_EXPR,
 
        NT_EXPR,
};
 
/* Bu string karşılıkları tokenizer'a punctuation ve keyword eklemek için
 * kullanacağız. */
const char *bc_tk_names[] = {
        "+", "-", "*", "/", "%", "^",
        "+=", "-=", "*=", "/=", "%=", "^=", "=",
        "++", "--",
        "<", ">", "==", "!=", "<=", ">=",
        "(", ")", "{", "}", ";", ",",
        "define", "break", "quit", "print",
        "return", "for", "if", "while", "cst",
 
        /* librdesc'in dump_bnf fonksiyonuyla gramer yapımızı birazdan print
         * edeceğiz. */
        [TK_INT] = "@int", [TK_FLOAT] = "@float", [TK_IDENT] = "@ident",
};
 
/* Nonterminal isimleri ve yukarıdaki [] içindeki token isimleri, dump_bnf
 * özelligi için. */
const char *bc_nt_names[] = {
        "stmt", "stmts",
 
        "add_op", "mul_op",
        "asgn_op", "rel_op",
        "unary_op", "incr_decr_op", "opt_incr_decr_op",
 
        "add_expr", "add_expr_rest",
        "mul_expr", "mul_expr_rest",
        "exp_expr", "exp_expr_rest",
        "factor", "atom",
        "asgn_expr", "rel_expr", "rel_expr_opt_rel",
        "opt_expr",
 
        "expr",
};
 
/* Gramer tanımını tutacak struct'ı declare ediyoruz.*/
extern struct rdesc_grammar_symbol bc_production_rules
        [BC_NT_COUNT][BC_MAX_ALT_COUNT + 1][BC_MAX_ALT_SIZE + 1];
 
void bc_tokenizer_init(struct tokenizer *tokenizer);
 
 
#endif