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import sys
# This module provides some tools for manipulating the position of the cursor. # This is useful for programs that need to update some simple pieces of # information (like a clock) but don't require a full-blown ncurses interface.
COLORS = { 'normal': 0, 'black': 30, 'red': 31, 'green': 32, 'yellow': 33, 'blue': 34, 'magenta': 35, 'cyan': 36, 'white': 37}
STYLES = { 'normal': 0, 'bright': 1, 'bold': 1, # alias for bright 'dim': 2, 'underline': 4, 'blink': 5, # often not available 'reverse': 7, 'invisible': 8}
def write(string): """ Write string to standard out. """ sys.stdout.write(string) sys.stdout.flush()
def write_color(string, name, style='normal'): """ Write a colored string to standard out. """ write(color(string, name, style))
def color(string, name, style='normal'): """ Change the color of the given string. """ prefix = '\033[%d;%dm' % (STYLES[style], COLORS[name]) suffix = '\033[%d;%dm' % (STYLES['normal'], COLORS['normal']) return prefix + string + suffix
def move(x, y): """ Move cursor to the given coordinates. """ write('\033[' + str(x) + ';' + str(y) + 'H')
def move_up(lines): """ Move cursor up the given number of lines. """ write('\033[' + str(lines) + 'A')
def move_down(lines): """ Move cursor down the given number of lines. """ write('\033[' + str(lines) + 'B')
def move_forward(chars): """ Move cursor forward the given number of characters. """ write('\033[' + str(chars) + 'C')
def move_back(chars): """ Move cursor backward the given number of characters. """ write('\033[' + str(chars) + 'D')
def clear(): """ Clear the screen and home the cursor. """ write('\033[2K' + '\r')
def clear_eol(): """ Clear the screen to end of line. """ write('\033[0K')
def save(): """ Save the cursor position. """ write('\033[s')
def restore(): """ Restore the cursor position. """ write('\033[u')
def conceal(): """ Conceal the cursor. """ write('\033[?25l')
def reveal(): """ Reveal the cursor. """ write('\033[?25h') |