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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cacharle <cacharle@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/28 11:45:44 by cacharle #+# #+# */
/* Updated: 2020/08/28 17:16:18 by charles ### ########.fr */
/* */
/* ************************************************************************** */
/*
** \file main.c
** \brief Minishell entrypoint
*/
#include "minishell.h"
#include "lexer.h"
#include "parser.h"
#include "eval.h"
/* void token_debug(void *v); */
/* void token_put(void *v); */
/* void print_level(int level); */
/* void ast_print(int level, t_ast *ast); */
void tok_lst_debug(t_tok_lst *tokens);
/*
** TODO
** $?
** pipeline
** cmd variable preprocess
** PATH with no permission, link and other file system fun stuff
** escape lexer ------- ok
** escape split preprocessing (escaped spaces)
** signal on whole line instead of single command
** parsing error ------ ok
** env local to current minishell process
** BETTER ERROR HANDLING IS BECOMING URGENT (spagetti code everywhere)
*/
bool env_set_default(t_env env, char *key, char *value)
{
if (env_search(env, key) != NULL)
return (true);
return (env_export(env, key, value) != NULL);
}
char *g_basename = "minishell";
int main(int argc, char **argv, char **envp)
{
t_path path;
t_env env;
env = env_from_array(envp);
char buf[PATH_MAX] = {0};
if (!(getcwd(buf, PATH_MAX)))
return(1);
if (!env_set_default(env, "PWD", buf) ||
!env_set_default(env, "SHLVL", "1") || // TODO increment if set
!env_set_default(env, "PATH", "/sbin:")) // FIXME need to prefix if /sbin not in
return (1);
path = path_update(NULL, env_search(env, "PATH"));
/* char *env_exec_path; */
// if ((env_exec_path = ft_htget(path, "env")) == NULL)
// {
// errorf("env: command not found\n");
// return (127);
// }
// env_export(env, "_", env_exec_path);
g_last_status_code = 0;
/* signal(SIGINT, signal_sigint); */
/* signal(SIGQUIT, signal_sigquit); */
/* signal(SIGTERM, signal_sigterm); */
char *last_slash = ft_strrchr(argv[0], '/');
if (last_slash == NULL)
g_basename = argv[0];
else
g_basename = last_slash + 1;
if (argc == 3 && ft_strcmp(argv[1], "-l") == 0)
{
t_tok_lst *lex_out = lexer(argv[2]);
if (lex_out == NULL)
return (1);
tok_lst_debug(lex_out);
/* ft_lstiter((t_ftlst*)lex_out, token_debug); */
}
else if (argc == 3 && ft_strcmp(argv[1], "-c") == 0)
{
t_tok_lst *lex_out = lexer(argv[2]);
if (lex_out == NULL)
return (1);
t_parsed *parser_out = parse(lex_out);
if (parser_out == NULL || parser_out->syntax_error)
return (1);
/* ast_print(0, parser_out->ast); */
/* printf("===cmd_argv===\n"); */
/* ft_lstiter(parser_out->ast->cmd_argv, token_debug); */
/* printf("===redirs===\n"); */
/* ft_lstiter(parser_out->ast->redirs, token_debug); */
int fds[2] = {MS_NO_FD, MS_NO_FD};
int eval_out = eval(fds, env, path, parser_out->ast);
(void)eval_out;
}
else
{
int ret;
char *line;
ft_putstr_fd("> ", STDERR_FILENO);
while ((ret = ft_getline(STDOUT_FILENO, &line)) == FTGL_OK)
{
if (*line == '\0')
{
ft_putstr_fd("> ", STDERR_FILENO);
continue;
}
t_tok_lst *lex_out = lexer(line);
if (lex_out == NULL)
return (1);
t_parsed *parser_out = parse(lex_out);
if (parser_out == NULL)
return (1);
if (parser_out->syntax_error)
{
ft_putstr_fd("> ", STDERR_FILENO);
continue;
}
int fds[2] = {MS_NO_FD, MS_NO_FD};
int eval_out = eval(fds, env, path, parser_out->ast);
(void)eval_out;
ft_putstr_fd("> ", STDERR_FILENO);
}
if (ret != FTGL_EOF)
return (1);
}
ft_htdestroy(path, free);
ft_vecdestroy(env, free);
return (g_last_status_code);
}
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