python/samba/colour.py

   1 # ANSI codes for 4 bit and xterm-256color
   2 #
   3 # Copyright (C) Andrew Bartlett 2018
   4 #
   5 # Originally written by Douglas Bagnall
   6 #
   7 # This program is free software; you can redistribute it and/or modify
   8 # it under the terms of the GNU General Public License as published by
   9 # the Free Software Foundation; either version 3 of the License, or
  10 # (at your option) any later version.
  11 #
  12 # This program is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 # GNU General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU General Public License
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19 #
  20 # The 4 bit colours are available as global variables with names like
  21 # RED, DARK_RED, REV_RED (for red background), and REV_DARK_RED.
  22 #
  23 # The 256-colour codes are obtained using xterm_256_color(n), where n
  24 # is the number of the desired colour.
  25
  26 # C_NORMAL resets to normal, whatever that is
  27 C_NORMAL = "\033[0m"
  28
  29 UNDERLINE = "\033[4m"
  30
  31 def _gen_ansi_colours():
  32     g = globals()
  33     for i, name in enumerate(('BLACK', 'RED', 'GREEN', 'YELLOW', 'BLUE',
  34                               'MAGENTA', 'CYAN', 'WHITE')):
  35         g[name] = "\033[1;3%dm" % i
  36         g['DARK_' + name] = "\033[3%dm" % i
  37         g['REV_' + name] = "\033[1;4%dm" % i
  38         g['REV_DARK_' + name] = "\033[4%dm" % i
  39
  40 _gen_ansi_colours()
  41
  42 # kcc.debug uses these aliases (which make visual sense)
  43 PURPLE = DARK_MAGENTA
  44 GREY = DARK_WHITE
  45
  46 def xterm_256_colour(n, bg=False, bold=False):
  47     weight = '01;' if bold else ''
  48     target = '48' if bg else '38'
  49
  50     return "\033[%s%s;5;%dm" % (weight, target, int(n))