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How do I use (n)curses in Ruby?


By : VAstik
Date : July 27 2020, 09:00 AM
should help you out You might be able to get some implementation ideas from the Ruby/ProgressBar library, which generates text progress bars. I stumbled across it a couple of months back but haven't made any use of it.
code :


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ruby curses: How to get ctrl/meta keys with


By : user2600050
Date : March 29 2020, 07:55 AM
With these it helps Ctrl+s is usually grabbed by the terminal, so you have to put Curses in raw mode to capture that key. Here is an example:
code :
#!/usr/bin/ruby

require 'curses'

Curses.raw # intercept everything
Curses.noecho
loop do
  case Curses.getch
    when ?q     then break
    when ?b     then Curses.addch ?b
    when ?\C-s  then Curses.addstr "^s" # Ctrl+S
  end
end

Ruby curses colors


By : user3502874
Date : March 29 2020, 07:55 AM
around this issue There are examples of curses usage in the ruby source code, see, e.g. here.
Your code could be something like:
code :
require 'curses'
include Curses

Curses.noecho # do not show typed keys
Curses.init_screen
Curses.stdscr.keypad(true) # enable arrow keys (required for pageup/down)
Curses.start_color
# Determines the colors in the 'attron' below
Curses.init_pair(COLOR_BLUE,COLOR_BLUE,COLOR_BLACK) 
Curses.init_pair(COLOR_RED,COLOR_RED,COLOR_BLACK)

loop do

  case Curses.getch

  when Curses::Key::PPAGE
    Curses.clear
    Curses.setpos(0,0)
    # Use colors defined color_init
    Curses.attron(color_pair(COLOR_RED)|A_NORMAL){
      Curses.addstr("Page Up")
    }
  when Curses::Key::NPAGE
    Curses.clear
    Curses.setpos(0,0)
    Curses.attron(color_pair(COLOR_BLUE)|A_NORMAL){
      Curses.addstr("Page Down")
    }
  end
end

Ruby curses: how to get pure white


By : Ake Sandra Chelisga
Date : March 29 2020, 07:55 AM
To fix this issue Most of the terminals which implement "ANSI color" use a more intense foreground color when told to render bold. But there is no corresponding workaround for the background.
However, the majority of these also implement SGR 39 and SGR 49, which reset the foreground and background to its "default" colors. Using that would get your original terminal background (which is likely what you want). That is a feature of ncurses called use_default_colors, which I see is available in ruby.

Learning Ruby Curses


By : user3796224
Date : March 29 2020, 07:55 AM
will be helpful for those in need You can see the basics in action at the curses tic tac toe

terminal output in ruby without curses?


By : PythonBeginner
Date : March 29 2020, 07:55 AM
I hope this helps you . To control the screen you need to send (or print) ANSI control sequences. To clear the screen the sequence is \e[2J, which you can just puts or print to STDOUT, depending on your needs.
Some example methods in Ruby:
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