42_minishell/parse/parse.c
2023-03-30 12:33:33 +02:00

124 lines
2.9 KiB
C

/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* parse.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cchauvet <cchauvet@student.42angouleme.fr +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2023/03/27 13:44:38 by cchauvet #+# #+# */
/* Updated: 2023/03/29 19:31:35 by cchauvet ### ########.fr */
/* */
/* ************************************************************************** */
#include "./parse_private.h"
static int ft_args_parse(char *cmd_str, t_cmd *cmd)
{
char **tab;
size_t i;
tab = ft_split_quoted(cmd_str, ' ');
if (tab == NULL)
return (1);
i = 0;
while (tab[i] != NULL)
{
ft_quote_remover(tab[i]);
i++;
}
cmd->args = tab;
return (0);
}
static int ft_executable_parse(t_data *data, t_cmd *cmd)
{
bool own;
char *path;
path = cmd->args[0];
own = 0;
if (cmd->args[0] == NULL)
{
ft_closer(cmd->fd_in);
ft_closer(cmd->fd_out);
}
else if (ft_strcmp(cmd->args[0], "env") == 0 || (ft_strcmp(cmd->args[0],
"export") == 0) || (ft_strcmp(cmd->args[0], "echo") == 0)
|| (ft_strcmp(cmd->args[0], "unset") == 0) || (ft_strcmp(cmd->args[0],
"exit") == 0) || (ft_strcmp(cmd->args[0], "pwd") == 0)
|| (ft_strcmp(cmd->args[0], "cd") == 0))
own = 1;
else
{
path = ft_get_executable(data, cmd->args[0]);
if (path == NULL)
return (1);
}
cmd->own_cmd = own;
cmd->executable = path;
return (0);
}
int ft_cmd_adder(t_data *data, t_cmd *cmd)
{
t_list *element;
element = ft_lstnew(cmd);
if (element == NULL)
{
ft_cmddel(cmd);
return (1);
}
ft_lstadd_back(data->cmds, element);
return (0);
}
int ft_cmd_parser(t_data *data, char *cmd_str)
{
t_cmd *cmd;
cmd = ft_calloc(sizeof(t_cmd), 1);
if (cmd == NULL)
{
ft_eprintf("minishell: malloc failed\n");
return (1);
}
ft_redirection(data, cmd, cmd_str);
if (ft_args_parse(cmd_str, cmd))
{
ft_cmddel(cmd);
return (1);
}
ft_executable_parse(data, cmd);
return (ft_cmd_adder(data, cmd));
}
int ft_cmds_parser(t_data *data, const char *line)
{
char **tab;
ssize_t i;
tab = ft_split_quoted(line, '|');
if (tab == NULL)
{
ft_eprintf("minishell: malloc failed\n");
return (1);
}
i = -1;
while (tab[++i] != NULL)
{
if (ft_cmd_parser(data, tab[i]))
{
ft_freer_tab_ultimate(1, tab);
return (1);
}
}
if (*data->cmds != NULL)
{
ft_add_fd(((t_cmd *)(*data->cmds)->content)->fd_in, 0);
ft_add_fd(((t_cmd *)(ft_lstlast(*data->cmds))->content)->fd_out, 1);
}
ft_freer_tab_ultimate(1, tab);
return (0);
}