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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* main.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: cacharle <cacharle@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/28 11:45:44 by cacharle #+# #+# */
/* Updated: 2020/10/09 09:39:22 by cacharle ### ########.fr */
/* */
/* ************************************************************************** */
/*
** \file main.c
** \brief Minishell entrypoint
*/
#include "minishell.h"
#include "lexer.h"
#include "parser.h"
#include "eval.h"
int debug_lexer(char *input);
int debug_parser(char *input);
/*
** TODO
** signal whole line
** path optimisation on command not found
** path tricks
*/
t_state g_state;
int execute(t_env env, char *input)
{
t_tok_lst *lexer_out;
int status;
t_parsed *parser_out;
int fds[2];
status = lexer(input, &lexer_out);
if (status != 0)
{
tok_lst_destroy(&lexer_out, free);
return (status);
}
parser_out = parse(lexer_out);
if (parser_out == NULL || parser_out->syntax_error)
{
ast_destroy(parser_out->ast);
free(parser_out);
return (2);
}
fds[0] = FD_NONE;
fds[1] = FD_NONE;
status = eval(fds, env, parser_out->ast);
ast_destroy(parser_out->ast);
free(parser_out);
if (status == EVAL_FATAL)
exit(1);
g_state.last_status = status;
return (status);
}
int repl(t_env env)
{
int ret;
char *line;
print_prompt();
while ((ret = ft_getline(STDIN_FILENO, &line)) == FTGL_OK)
{
if (*line == '\0')
{
print_prompt();
continue ;
}
g_state.killed = false;
if (execute(env, line) == EVAL_FATAL)
return (2);
g_child_pid = -1;
print_prompt();
free(line);
}
free(line);
if (ret != FTGL_EOF)
return (2);
return (0);
}
#ifndef MINISHELL_TEST
int main(int argc, char **argv, char **envp)
{
t_env env;
if (argc != 1)
{
ft_putendl_fd("minishell doesn't accept any arguments", STDERR_FILENO);
return (1);
}
if ((env = env_from_array(envp)) == NULL)
return (1);
setup(argv[0], env);
g_state.child_pid = -1;
repl(env);
ft_vecdestroy(env, free);
return (g_state.last_status);
}
#else
int main(int argc, char **argv, char **envp)
{
t_env env;
if ((env = env_from_array(envp)) == NULL)
return (1);
setup(argv[0], env);
g_state.last_status = 0;
if (argc == 3 && ft_strcmp(argv[1], "-l") == 0)
g_state.last_status = debug_lexer(argv[2]);
else if (argc == 3 && ft_strcmp(argv[1], "-p") == 0)
g_state.last_status = debug_parser(argv[2]);
else if (argc == 3 && ft_strcmp(argv[1], "-c") == 0)
g_state.last_status = execute(env, argv[2]);
else
repl(env);
ft_vecdestroy(env, free);
return (g_state.last_status);
}
#endif
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