Shell-edit release

Autocomplete program and file names (tab).
Moving the cursor to edit commands (left and right arrows).
Deleting a character in a command (backspace).

1 files changed, 37 insertions, 0 deletions

diff --git a/readline.h b/readline.h
new file mode 100644
index 0000000..b626cae
--- /dev/null
+++ b/readline.h
@@ -0,0 +1,37 @@
+#ifndef READLINE_H_SENTRY
+#define READLINE_H_SENTRY
+
+#include "readline.h"
+
+/*
+ * ends with these codes in escape sequence
+ * for the arrows
+ */
+enum keys{
+    left_arrow      = 'D',
+    right_arrow     = 'C',
+    up_arrow        = 'A',
+    down_arrow      = 'B',
+    none            =  0,
+    unknown_key     =  -1,
+    backspace       =  127
+};
+
+struct readline_type {
+    char *arr;
+    int cursor_pos;
+    int considered_index;
+    int last_element_index;
+    int allocation_size;
+};
+
+void readline_create_array(struct readline_type *readline);
+void readline_add_char(struct readline_type *readline, int ch);
+void readline_reset_array(struct readline_type *readline);
+void readline_clear(struct readline_type *readline);
+void readline_print(struct readline_type *readline_type);
+enum keys readline_detect_arrow_keys(int ch);
+void readline_move_along(struct readline_type *readline, enum keys found_key);
+void readline_character_deletion(struct readline_type *readline);
+
+#endif