copy paste functions

include/define.h

@@ -2,15 +2,17 @@
 #define DEFINE_H_
 
 #define CTRL_KEY(k) ((k) & 0x1f)
+#define ALT(k) ((k) | 0x200)  // set bit 9 to mark as Option combo
+
 
 #define ESCAPE '\x1b'
 #define CURSOR_TOP_LEFT "\x1b[H"
 #define HIDE_CURSOR "\x1b[?25l"
 #define SHOW_CURSOR "\x1b[?25h"
 #define ERASE_END_LINE "\x1b[K"
-#define TAB "\x9"
+#define TAB "\t"
 #define SPACE "\x20"
-// #define APP_DEBUG
+#define APP_DEBUG
 
 enum editorKey_e {
     BACKSPACE = 127,
@@ -29,4 +31,12 @@ enum editorKey_e {
 
 #define BELUGA_VERSION "2.4"
 
+#ifdef __APPLE__
+#define CLIPBOARD_COPY_CMD  "pbcopy"
+#define CLIPBOARD_PASTE_CMD "pbpaste"
+#else
+#define CLIPBOARD_COPY_CMD  "xclip -selection clipboard"
+#define CLIPBOARD_PASTE_CMD "xclip -selection clipboard -o"
+#endif
+
 #endif // DEFINE_H_