1 files changed, 76 insertions, 0 deletions
diff --git a/src/read_heredoc.c b/src/read_heredoc.c
new file mode 100644
index 0000000..53633e8
--- /dev/null
+++ b/src/read_heredoc.c
@@ -0,0 +1,76 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   read_heredoc.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: dkaiser <dkaiser@student.42heilbronn.de    +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2025/01/15 18:22:09 by dkaiser           #+#    #+#             */
+/*   Updated: 2025/01/15 19:08:07 by dkaiser          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "minishell.h"
+#include <errno.h>
+#include <stdio.h>
+#include <sys/errno.h>
+
+static char	*concat_str(char *temp, char *line);
+static char	*get_result(char *temp, char *result, char *line);
+static void	*print_error_and_free(char *result);
+
+char	*read_heredoc(char *delimiter)
+{
+	char	*line;
+	char	*result;
+	char	*temp;
+	size_t	total_length;
+	size_t	line_length;
+
+	total_length = 0;
+	result = NULL;
+	while (1)
+	{
+		line = readline("> ");
+		if (!line || ft_strcmp(line, delimiter) == 0)
+		{
+			free(line);
+			break ;
+		}
+		line_length = ft_strlen(line) + 1;
+		temp = malloc(total_length + line_length + 1);
+		if (!temp)
+			return (print_error_and_free(result));
+		result = get_result(temp, result, line);
+		total_length += line_length;
+	}
+	return (result);
+}
+
+static char	*concat_str(char *temp, char *line)
+{
+	ft_strcat(temp, line);
+	ft_strcat(temp, "\n");
+	free(line);
+	return (temp);
+}
+
+static char	*get_result(char *temp, char *result, char *line)
+{
+	if (result)
+	{
+		ft_strcpy(temp, result);
+		free(result);
+	}
+	else
+		temp[0] = '\0';
+	return (concat_str(temp, line));
+}
+
+static void	*print_error_and_free(char *result)
+{
+	errno = ENOMEM;
+	perror("heredoc");
+	free(result);
+	return (NULL);
+}