1 files changed, 150 insertions, 0 deletions
diff --git a/src/p_args_escape.c b/src/p_args_escape.c
new file mode 100644
index 0000000..abdf3b3
--- /dev/null
+++ b/src/p_args_escape.c
@@ -0,0 +1,150 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   p_args_escape.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 <stddef.h>
+
+#include "d_define.h"
+#include "u_utils.h"
+
+static t_quote_mode
+	p_escape_squote(char *ptr, char **p, char word[], t_quote_mode mode)
+{
+	if (mode == Q_NONE)
+	{
+		if (u_is_not_escaped(word, ptr) == TRUE)
+		{
+			(void)ft_memmove(word + (ptr - word), ptr + 1,
+				(ft_strlen(ptr + 1) + 1) * sizeof(char));
+			*(p) -= 1;
+			return (Q_SINGLE);
+		}
+		else
+		{
+			return (Q_NONE);
+		}
+	}
+	else if (mode == Q_SINGLE)
+	{
+		(void)ft_memmove(word + (ptr - word), ptr + 1,
+			(ft_strlen(ptr + 1) + 1) * sizeof(char));
+		*(p) -= 1;
+		return (Q_NONE);
+	}
+	return (mode);
+}
+
+static t_quote_mode
+	p_escape_dquote(char *ptr, char **p, char word[], t_quote_mode mode)
+{
+	if (mode == Q_NONE)
+	{
+		if (u_is_not_escaped(word, ptr) == TRUE)
+		{
+			(void)ft_memmove(word + (ptr - word), ptr + 1,
+				(ft_strlen(ptr + 1) + 1) * sizeof(char));
+			*(p) -= 1;
+			return (Q_DOUBLE);
+		}
+		else
+		{
+			return (Q_NONE);
+		}
+	}
+	else if (mode == Q_DOUBLE && u_is_not_escaped(word, ptr) == TRUE)
+	{
+		(void)ft_memmove(word + (ptr - word), ptr + 1,
+			(ft_strlen(ptr + 1) + 1) * sizeof(char));
+		*(p) -= 1;
+		return (Q_NONE);
+	}
+	return (mode);
+}
+
+static void
+	p_escape_bs(char *ptr, char word[], t_quote_mode mode)
+{
+	if (mode == Q_NONE)
+	{
+		(void)ft_memmove(word + (ptr - word), ptr + 1,
+			(ft_strlen(ptr + 1) + 1) * sizeof(char));
+	}
+	else if (mode == Q_DOUBLE)
+	{
+		if (*(ptr + 1) == C_BACKS)
+		{
+			(void)ft_memmove(word + (ptr - word), ptr + 1,
+				(ft_strlen(ptr + 1) + 1) * sizeof(char));
+		}
+		else if (*(ptr + 1) == C_DQUOTE)
+		{
+			(void)ft_memmove(word + (ptr - word), ptr + 1,
+				(ft_strlen(ptr + 1) + 1) * sizeof(char));
+		}
+	}
+}
+
+static void
+	p_escape_arg(char word[])
+{
+	char			*ptr;
+	t_quote_mode	mode;
+
+	ptr = word;
+	mode = Q_NONE;
+	while (*ptr != C_NUL)
+	{
+		if (*ptr == C_SQUOTE)
+			mode = p_escape_squote(ptr, &ptr, word, mode);
+		else if (*ptr == C_DQUOTE)
+			mode = p_escape_dquote(ptr, &ptr, word, mode);
+		else if (*ptr == C_BACKS)
+			p_escape_bs(ptr, word, mode);
+		ptr++;
+	}
+}
+
+static void
+	p_replace_bs(char *ptr)
+{
+	char	*head;
+
+	head = ptr;
+	while (*ptr != C_NUL)
+	{
+		if (*ptr == C_SUB && *(ptr + 1) == C_SUB)
+		{
+			(void)ft_memmove(head + (ptr - head), ptr + 1,
+				(ft_strlen(ptr + 1) + 1) * sizeof(char));
+			*ptr = C_BACKS;
+		}
+		ptr++;
+	}
+}
+
+void
+	p_args_escape_chars_and_quotes(char *words[])
+{
+	/* TODO: escape \ */
+	/* TODO: escape $# special vars */
+	/* TODO: comments ################ */
+	/* TODO: escape my life */
+	char	**ptr;
+
+	ptr = words;
+	while (*ptr != NULL)
+	{
+		p_escape_arg(*ptr);
+		p_replace_bs(*ptr);
+		ptr++;
+	}
+}