编译原理lr(0)分析表c语言构造代码

LR(0)分析表是一种自底向上的语法分析方法，用于分析上下文无关文法。下面是构造LR(0)分析表的C语言代码示例：

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define MAX_SYMBOLS 100
#define MAX_STATES 100

int num_symbols, num_states;
char symbols[MAX_SYMBOLS];
char states[MAX_STATES][MAX_SYMBOLS];
int num_transitions[MAX_STATES][MAX_SYMBOLS];
char transitions[MAX_STATES][MAX_SYMBOLS][MAX_STATES];

int get_symbol_index(char symbol) {
    for (int i = 0; i < num_symbols; i++) {
        if (symbols[i] == symbol) {
            return i;
        }
    }
    return -1;
}

void add_transition(int state, char symbol, int next_state) {
    int symbol_index = get_symbol_index(symbol);
    if (symbol_index == -1) {
        symbols[num_symbols++] = symbol;
        symbol_index = num_symbols - 1;
    }
    num_transitions[state][symbol_index]++;
    transitions[state][symbol_index][next_state] = 1;}

void print_table() {
    printf("State\t");
    for (int i = 0; i < num_symbols; i++) {
        printf("%c\t", symbols[i]);
    }
    printf("\n");
    for (int i = 0; i < num_states; i++) {
        printf("%d\t", i);
        for (int j = 0; j < num_symbols; j++) {
            if (num_transitions[i][j] == 0) {
                printf(".\t");
            } else if (num_transitions[i][j] == 1) {
                int next_state = -1;
                for (int k = 0; k < num_states; k++) {
                    if (transitions[i][j][k]) {
                        next_state = k;
                        break;
                    }
                }
                printf("%d\t", next_state);
            } else {
                printf("{");
                for (int k = 0; k < num_states; k++) {
                    if (transitions[i][j][k]) {
                        printf("%d,", k);
                    }
                }
                printf("}\t");
            }
        }
        printf("\n");
    }
}

int main() {
    // TODO: 构造LR(0)分析表的代码
    print_table();
    return 0;
}