109 lines
2.2 KiB
C
109 lines
2.2 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* echo.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: lderidde <lderidde@student.s19.be> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2025/01/24 14:31:56 by lderidde #+# #+# */
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/* Updated: 2025/01/28 12:40:27 by lderidde ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "../../includes/minishell.h"
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int is_silent(char *str)
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{
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int i;
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bool flag;
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i = 0;
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flag = false;
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if (str[i] && str[i] != '-')
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return (flag);
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i++;
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while (str[i] && str[i] == 'n')
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i++;
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if (!str[i])
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flag = true;
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return (flag);
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}
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char *ft_getenv(char *str, char **envp)
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{
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char *tmp;
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int j;
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size_t len;
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j = 0;
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tmp = ft_strjoin(str, "=");
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len = ft_strlen(tmp);
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while (envp[j] && ft_strnstr(envp[j], tmp, len) == NULL)
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j++;
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if (!envp[j])
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return (free(tmp), NULL);
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free(tmp);
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return (&envp[j][len]);
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}
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int extractenv(char *str, char **envp)
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{
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int i;
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char *var;
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char *tmp;
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i = 0;
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while (str[i] && str[i] != ' ')
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i++;
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if (i >= 1)
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tmp = ft_substr(str, 1, i - 1);
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var = get_var_value(tmp, envp);
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free(tmp);
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if (var)
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ft_printf("%s", var);
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return (i);
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}
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static void echo_print(char **arg, int j, char **envp)
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{
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int i;
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while (arg[j])
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{
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i = 0;
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while (arg[j][i])
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{
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if (arg[j][i] == '$')
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{
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if (!arg[j][i + 1] || arg[j][i + 1] == ' ')
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ft_put_c(arg[j][i++]);
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else
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i += extractenv(&arg[j][i], envp);
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}
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else
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ft_put_c(arg[j][i++]);
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}
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j++;
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if (arg[j])
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ft_put_c(' ');
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}
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}
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int builtin_echo(char **arg, char **envp)
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{
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int i;
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bool flag;
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flag = false;
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i = 1;
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while (arg[i] && is_silent(arg[i]))
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{
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flag = true;
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i++;
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}
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echo_print(arg, i, envp);
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if (!flag)
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ft_printf("\n");
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return (0);
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}
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