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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.