loc_env_var_handler_utils_utils.c

Go to the documentation of this file.

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   loc_env_var_handler_utils_utils.c                  :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: rmikhayl <marvin@42.fr>                    +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/09/10 01:45:18 by rmikhayl          #+#    #+#             */
/*   Updated: 2024/09/10 01:45:21 by rmikhayl         ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 
#include "tokens.h"
 
char    *expand_env_and_loc_var(char *arg, t_ms_data *data);
void    final_quote_removal(int arg_count, t_ast *command_node);
char    *get_env_variable(char *arg, t_ms_data *data);
void    handle_trailing_quote(char *arg);
char    *get_exit_status(t_ms_data *data);
 
void    final_quote_removal(int arg_count, t_ast *command_node)
{
    int     i;
    size_t  len;
    char    *arg;
    char    *trimmed_arg;
 
    i = 0;
    ft_print_2d_arr(command_node->args, "final-quote_removal");
    while (i < arg_count)
    {
        arg = command_node->args[i];
        len = ft_strlen(arg);
        if ((arg[0] == '"' && arg[len - 1] == '"') || (arg[0] == '\''
                && arg[len - 1] == '\''))
        {
            trimmed_arg = ft_strndup(arg + 1, len - 2);
            free(command_node->args[i]);
            command_node->args[i] = trimmed_arg;
        }
        i++;
    }
}
 
char    *expand_env_and_loc_var(char *arg, t_ms_data *data)
{
    char    *env_value_dup;
 
    arg = exit_status_adj(arg);
    if (ft_strcmp(arg, "$?") == 0)
        return (get_exit_status(data));
    else if (arg[0] == '$')
    {
        handle_trailing_quote(arg);
        env_value_dup = get_env_variable(arg, data);
        return (env_value_dup);
    }
    return (ft_strdup(""));
}
 
char    *get_exit_status(t_ms_data *data)
{
    char    *exit_status;
    char    *exit_status_dup;
 
    exit_status = get_shell_variable(data->shell_variables, "?");
    exit_status_dup = ft_strdup(exit_status);
    return (exit_status_dup);
}
 
void    handle_trailing_quote(char *arg)
{
    if (arg[ft_strlen(arg) - 1] == '"')
        arg[ft_strlen(arg) - 1] = '\0';
}
 
char    *get_env_variable(char *arg, t_ms_data *data)
{
    char    *env_value;
 
    env_value = get_env(data->envp, arg + 1);
    if (!env_value)
        env_value = get_env(data->shell_variables, arg + 1);
    if (env_value)
        return (ft_strdup(env_value));
    return (ft_strdup(""));
}