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/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* m_loop.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/02/14 17:19:27 by rbousset #+# #+# */
/* Updated: 2020/02/14 17:19:29 by rbousset ### ########lyon.fr */
/* */
/* ************************************************************************** */
#include <libft.h>
#include <stdint.h>
#include <stdlib.h>
#include <fcntl.h>
#include <unistd.h>
#include <signal.h>
#include <linux/limits.h>
#include "d_define.h"
#include "e_line.h"
#include "m_loop_next.h"
#include "m_prompt.h"
#include "p_line.h"
#include "s_com.h"
#include "s_lpipes.h"
#include "s_line.h"
#include "c_init.h"
#include "u_utils.h"
#include "u_parse.h"
#include "u_vars.h"
static void
m_parse_and_run_line(char line[], t_msh *msh)
{
t_line_block *ptr;
uint8_t previf;
p_line(line, msh);
previf = 0;
ptr = msh->curr;
while (ptr != NULL)
{
if ((previf == 0) || (previf == 1 && msh->ret == 0) ||
(previf == 2 && msh->ret != 0))
{
if ((msh->com = s_com_new(ptr->lblock, msh)) == NULL)
break ;
e_line(msh);
s_com_destroy(&msh->com);
}
else if (msh->pipes != NULL)
s_lpipes_clear(&msh->pipes);
previf = ptr->nextif;
ptr = ptr->next;
}
s_line_clear(&msh->curr);
}
void
m_dump_hist(char hist[], t_msh *msh)
{
char histfile[PATH_MAX];
int32_t fd;
if (hist[0] != C_NUL && ft_strlen(hist) > 0)
{
u_get_var_value(histfile, "$HISTFILE", PATH_MAX, msh);
if (histfile[0] != C_NUL)
{
if ((fd = open(histfile,
O_WRONLY | O_CREAT | O_APPEND, 0644)) != -1)
{
ft_dprintf(fd, "%s", hist);
close(fd);
}
}
}
}
static void
m_handle_hist(char hist[], char line[], t_msh *msh)
{
static uint16_t hist_i = 0;
if (hist_i == 0)
hist[0] = '\0';
ft_strlcpy(hist + ft_strlen(hist), line, 4096);
hist[ft_strlen(hist) + 1] = '\0';
hist[ft_strlen(hist)] = '\n';
hist_i += 1;
if (hist_i == 254)
{
m_dump_hist(hist, msh);
hist_i = 0;
}
}
static void m_delete_comments(char line[])
{
char *ptr;
t_quote_mode mode;
ptr = line;
mode = Q_NONE;
while (*ptr != C_NUL)
{
if (*ptr == C_DQUOTE)
mode = u_meet_dquote(line, ptr, mode);
else if (*ptr == C_SQUOTE)
mode = u_meet_squote(line, ptr, mode);
else if (mode == Q_NONE && *ptr == C_SHARP
&& u_is_not_escaped(line, ptr) == TRUE)
{
if (ptr - line == 0)
*ptr = C_NUL;
else if (ptr - line > 0 && ft_iswhitespace(*(ptr - 1)) == TRUE
&& u_is_not_escaped(line, ptr - 1) == TRUE)
*ptr = C_NUL;
}
ptr++;
}
}
uint8_t
m_loop(int32_t fd, t_msh *msh)
{
static char hist[255 * 4096];
char *line;
int8_t gnl;
msh->fd = fd;
gnl = 1;
while (gnl > 0)
{
gnl = c_gnl(fd, &line, 1, msh);
m_delete_comments(line);
if (line[0] != C_NUL)
{
line = m_check_multi_backslash(fd, line, msh);
line = m_check_multi_pipe(fd, line, msh);
line = m_check_multi_and(fd, line, msh);
line = m_check_multi_quotes(fd, line, msh);
if (fd == STDIN_FILENO)
m_handle_hist(hist, line, msh);
m_parse_and_run_line(line, msh);
/* TODO: (null): Bad address on "msh ~> echo a > asd; cat < asd" but not on "msh ~> echo a > asd; cat asd" */
}
else
ft_memdel((void*)&line);
}
if (fd == STDIN_FILENO)
m_dump_hist(hist, msh);
return (msh->ret);
}
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