utils.c

#include "archium.h"

void handle_signal(int signal) {
    if (signal == SIGINT) {
        printf("\nInterrupt received. Exiting gracefully.\n");
        exit(EXIT_SUCCESS);
    }
}

void get_input(char *input, const char *prompt) {
    char *line = readline(prompt);
    if (line) {
        strcpy(input, line);
        free(line);
    } else {
        input[0] = '\0';
    }

    char *start = input;
    while (isspace((unsigned char)*start)) start++;
    memmove(input, start, strlen(start) + 1);
    char *end = input + strlen(input) - 1;
    while (end > input && isspace((unsigned char)*end)) end--;
    end[1] = '\0';

    if (strlen(input) == 0) {
        get_input(input, prompt);
    }
}

int is_valid_command(const char *command) {
    const char *valid_commands[] = {
        "u", "i", "r", "p", "c", "o", "s", "h", "q",
        "l", "?", "cu", "dt", "cc", "lo"
    };
    int num_commands = sizeof(valid_commands) / sizeof(valid_commands[0]);
    for (int i = 0; i < num_commands; i++) {
        if (strcmp(command, valid_commands[i]) == 0 ||
            strncmp(command, "u ", 2) == 0) {
            return 1;
        }
    }
    return 0;
}