myNano

GNU Nano editor with a feature added by me. On opening a directory, nano will display the list of files and folders in the directory and allow us to navigate through the folders until we select a file.

Implement File/Folder browsing in GNU nano text editor.

Description :

When opening a directory in nano, the original behaviour is it displays an error message saying the file we opened is an directory and it opens a new blank buffer. After my changes, on opening a directory, it displays the contents of the current directory and allows to navigate through the directories. Use the UP/DOWN arrow keys to select a file/directory and ENTER to open the selected directory. Use LEFT/RIGHT arrow keys to move to the last/next visited directory.(Similar to history) When one tries to open a directory, the main() function in nano.c calls open_buffer() (in files.c). open_buffer sets the flag DIRECTORY and does other important initializations. open_buffer() calls open_file which opens the file and does the coloring if we are opening a directory. open_buffer also calls read_file() which prints the list of file and folders on the screen and sorts them. The input handling (ENTER, ARROW KEYS) is handled in winio.c

List of Changes :

	winio.c
	parse_kbinput();

	files.c
	open_buffer();
	close_buffer();
	open_file();
	read_file();

	move.c
	do_down();
	do_up();

	nano.c
	main();

New Functions Added :

	files.c
	get_contents();
	add_element();
	sort_contents();
	swap_data();		
	dircmp();
	isdir();
	path_list_init();

	winio.c
	add_to_path_list();
	move_backwards_in_path();	
	move_forwards_in_path();

Note:

Read the directions given in README.git for installing and running nano.