Adding left, right, home, end and del key support

Makefile

@@ -32,7 +32,8 @@ SRC = src/shell.c \
 	src/key_bindings/basic_typing_functions.c \
 	src/key_bindings/default_bindings.c \
 	src/key_bindings/control_commands.c \
-	src/redirections/pty_pipe.c
+	src/redirections/pty_pipe.c \
+	src/key_bindings/move_commands.c
 
 OBJ = $(SRC:%.c=%.o)
 OBJ += src/main.o

include/key_functions.h

@@ -32,4 +32,11 @@ int buffer_get_display_pos(buffer_t *buffer);
 int self_insert_command(int key, buffer_t *buffer, env_t *env);
 int newline_command(int key, buffer_t *buffer, env_t *env);
 int eof_command(int key, buffer_t *buffer, env_t *env);
-int backward_delete_char_command(int key, buffer_t *buffer, env_t *env);
+
+int backward_delete_char_command(int key, buffer_t *buffer, env_t *env);
+int delete_char_command(int key, buffer_t *buffer, env_t *env);
+
+int forward_char_command(int key, buffer_t *buffer, env_t *env);
+int backward_char_command(int key, buffer_t *buffer, env_t *env);
+int beginning_of_line_command(int key, buffer_t *buffer, env_t *env);
+int end_of_line_command(int key, buffer_t *buffer, env_t *env);

src/key_bindings/basic_typing_functions.c

@@ -46,6 +46,15 @@ int backward_delete_char_command(int key, buffer_t *buffer, env_t *env)
     return (0);
 }
 
+int delete_char_command(int key, buffer_t *buffer, env_t *env)
+{
+    int len = buffer->buffer ? strlen(buffer->buffer) : 0;
+
+    for (int i = buffer->pos; i < len; i++)
+        buffer->buffer[i] = buffer->buffer[i + 1];
+    return (0);
+}
+
 int newline_command(int key, buffer_t *buffer, env_t *env)
 {
     int ret;

src/key_bindings/default_bindings.c

@@ -15,6 +15,11 @@ const key_function_t key_functions[] = {
     {"newline", &newline_command},
     {"enf-of-file", &eof_command},
     {"backward-delete-char", &backward_delete_char_command},
+    {"delete-char", &delete_char_command},
+    {"backward-char", &backward_char_command},
+    {"forward-char", &forward_char_command},
+    {"beginning-of-line", &beginning_of_line_command},
+    {"end-of-line", &end_of_line_command},
     {NULL, NULL}
 };
 
@@ -23,5 +28,10 @@ const binding_t emacs_bindings[] = {
     {CTRL('d'), &eof_command},
     {127, &backward_delete_char_command},
     {KEY_BACKSPACE, &backward_delete_char_command},
+    {KEY_DC, &delete_char_command},
+    {KEY_LEFT, &backward_char_command},
+    {KEY_RIGHT, &forward_char_command},
+    {KEY_HOME, &beginning_of_line_command},
+    {KEY_END, &end_of_line_command},
     {0, NULL}
 };

src/key_bindings/move_commands.c

@@ -0,0 +1,35 @@
+/*
+** EPITECH PROJECT, 2020
+** ash
+** File description:
+** arrow_commands
+*/
+
+#include "shell.h"
+#include "key_functions.h"
+
+int backward_char_command(int key, buffer_t *buffer, env_t *env)
+{
+    if (buffer->pos != 0)
+        buffer->pos--;
+    return (0);
+}
+
+int forward_char_command(int key, buffer_t *buffer, env_t *env)
+{
+    if (buffer->buffer && buffer->buffer[buffer->pos] != '\0')
+        buffer->pos++;
+    return (0);
+}
+
+int beginning_of_line_command(int key, buffer_t *buffer, env_t *env)
+{
+    buffer->pos = 0;
+    return (0);
+}
+
+int end_of_line_command(int key, buffer_t *buffer, env_t *env)
+{
+    buffer->pos = buffer->buffer ? strlen(buffer->buffer) : 0;
+    return (0);
+}