One more less, now using GNU AWK

This is a very simple clone of GNU less, written in GNU AWK programming language.

Dependencies

• GNU AWK 4.0+
• ncurses
• coreutils

What it does

• Read a file calling it as an argument: ./less-clone.gawk <filename>
• If no argument is given, the program will ask for the filename.
• h/j/k/l and arrow keys to scroll on every direction.
• b/f to scroll one page up or down.
• q to quit.

Yet to be done

• Properly change the status line.
• Command option (:) is still useless. Not fully implemented. Maybe remove it for good. [removed]
• Handle invalid filename
• Simplify change of terminal properties with stty and tput. It is too hard coded now.
• Handle long lines. Now they are capped by the number of columns of the terminal. [added horizontal scrolling]
• On function get_input: substitute if-elses for the switch statement.
• Add functions to treat redundant parts.
• Handle large lines by wrapping, which is the default less behaviour.
• Add command to open another file.
• Add help command, focusing on a lean status line.