I couldn't see shit

1 files changed, 158 insertions, 0 deletions

diff --git a/src/p_lcom.c b/src/p_lcom.c
new file mode 100644
index 0000000..f47e2c1
--- /dev/null
+++ b/src/p_lcom.c
@@ -0,0 +1,158 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   p_lcom.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 <stdlib.h>
+#include <stdint.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "d_define.h"
+#include "f_fail.h"
+#include "s_lcom.h"
+#include "s_lpipes.h"
+#include "s_struct.h"
+
+static void
+	rdr_err_check(char *ptr,
+				t_lcom **link)
+{
+	if ((*link)->redir == -1 && ft_ischarset("><", *(ptr + 1)))
+	{
+		/* TODO: syntax err */
+	}
+	else if ((*link)->redir == 1 && ft_ischarset("<", *(ptr + 1)))
+	{
+		/* TODO: syntax err */
+	}
+	else if ((*link)->redir == 2 && ft_ischarset("<>", *(ptr + 1)))
+	{
+		/* TODO: syntax err */
+	}
+}
+
+static int8_t
+	get_rdrpath(char *ptr,
+				t_lcom **link)
+{
+	char	*p_rdrpath;
+
+	ptr += ((*link)->redir == 2) ? (2) : (1);
+	if (!((*link)->rdrpath =
+		(char*)malloc((ft_strlen(ptr) + 1) * sizeof(char))))
+	{
+		return (-1);
+	}
+	p_rdrpath = (*link)->rdrpath;
+	while (*ptr)
+	{
+		if (*ptr != ' ')
+		{
+			*p_rdrpath = *ptr;
+			p_rdrpath++;
+		}
+		ptr++;
+	}
+	*p_rdrpath = '\0';
+	return (0);
+}
+
+static void
+	get_rdrfd(const char *ptr,
+				t_lcom **link)
+{
+	while (ft_isdigit(*ptr))
+	{
+		ptr--;
+	}
+	if (*ptr != ' ')
+		(*link)->rdrfd = STDOUT_FILENO;
+	else
+	{
+		ptr += 1;
+		(*link)->rdrfd = ft_atoi(ptr);
+	}
+}
+
+int8_t
+	get_redir(const char word[],
+				t_lcom **link)
+{
+	/* TODO: norme */
+	char	*ptr;
+
+	ptr = (char *)word;
+	while (*ptr)
+	{
+		if (*ptr == '<')
+		{
+			(*link)->redir = -1;
+			break ;
+		}
+		if (*ptr == '>')
+		{
+			(*link)->redir = (*(ptr + 1) == '>') ? (2) : (1);
+			break ;
+		}
+		ptr++;
+		/* TODO: handle correctly multiples "msh ~> echo qwe > qwe > asd >> zxc > qweasdzxc" */
+		/* hint: bash only handles the last one */
+		/* TODO: handle "msh ~> cat < Makefile >qwe" | gl hf */
+	}
+	if ((*link)->redir > 0)
+	{
+		if (ft_isdigit(*(ptr - 1)))
+			get_rdrfd(ptr - 1, link);
+		else
+			(*link)->rdrfd = STDOUT_FILENO;
+		rdr_err_check(ptr, link);
+		if (get_rdrpath(ptr, link) != 0)
+			return (-1);
+	}
+	return (0);
+}
+
+int8_t
+	p_lcom(const char line[],
+			const uint64_t count,
+			t_msh *msh)
+{
+	/* TODO: norme */
+	uint64_t		i;
+	t_lcom			*link;
+	char			**words;
+	t_bool			next;
+
+	i = 0;
+	if (!(words = ft_split(line, ';')))
+		return (-1);
+	while (i <= count && words[i])
+	{
+		next = FALSE;
+		/* TODO: split pipes here */
+		if (ft_strchr(words[i], '|'))
+		{
+			if (!(link = lcom_new(NULL, msh)))
+				return (-1);
+			if (!(split_pipes(words[i], link, msh)))
+				return (-1);
+			next = TRUE;
+		}
+		if (next == FALSE && !(link = lcom_new(words[i], msh)))
+			return (-1);
+		lcom_add_back(&msh->curr, link);
+		i++;
+	}
+	ft_delwords(words);
+	return (0);
+}