80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/* ************************************************************************** */
|
|
/* */
|
|
/* ::: :::::::: */
|
|
/* exec_utils.c :+: :+: :+: */
|
|
/* +:+ +:+ +:+ */
|
|
/* By: lderidde <lderidde@student.s19.be> +#+ +:+ +#+ */
|
|
/* +#+#+#+#+#+ +#+ */
|
|
/* Created: 2025/02/12 09:57:39 by lderidde #+# #+# */
|
|
/* Updated: 2025/02/15 09:22:23 by lderidde ### ########.fr */
|
|
/* */
|
|
/* ************************************************************************** */
|
|
|
|
#include "../../includes/minishell.h"
|
|
|
|
int execis_validchar(char c)
|
|
{
|
|
if (ft_isalnum(c) || c == '_')
|
|
return (1);
|
|
return (0);
|
|
}
|
|
|
|
int execget_var_len(char *str, t_ast_n *node, int *j)
|
|
{
|
|
int len;
|
|
int ret;
|
|
char *var;
|
|
|
|
len = *j + 1;
|
|
while (str[len] && execis_validchar(str[len]))
|
|
len++;
|
|
var = ft_substr(str, *j + 1, (size_t)len - (*j + 1));
|
|
*j = len;
|
|
ret = ft_strlen(get_var_value(var, node->msh->env));
|
|
ft_free(&var);
|
|
return (ret - (len - (*j + 1)));
|
|
}
|
|
|
|
int get_dup_len(char *str, t_ast_n *node)
|
|
{
|
|
int i;
|
|
int len;
|
|
|
|
i = 0;
|
|
len = ft_strlen(str);
|
|
while (str[i])
|
|
{
|
|
if (str[i] == '$')
|
|
{
|
|
len += execget_var_len(str, node, &i);
|
|
i--;
|
|
}
|
|
i++;
|
|
}
|
|
return (len);
|
|
}
|
|
|
|
int execvalid_next(char c)
|
|
{
|
|
if (c != '\0' && execis_validchar(c))
|
|
return (1);
|
|
return (0);
|
|
}
|
|
|
|
char *execextract_env(char *str, char **envp)
|
|
{
|
|
int i;
|
|
char *var;
|
|
char *tmp;
|
|
|
|
i = 1;
|
|
tmp = NULL;
|
|
while (str[i] && execis_validchar(str[i]))
|
|
i++;
|
|
if (i > 1)
|
|
tmp = ft_substr(str, 1, i - 1);
|
|
var = get_var_value(tmp, envp);
|
|
ft_free(&tmp);
|
|
return (var);
|
|
}
|