--- /dev/null
+# ANSI codes for 4 bit and xterm-256color
+#
+# Copyright (C) Andrew Bartlett 2018
+#
+# Originally written by Douglas Bagnall
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# The 4 bit colours are available as global variables with names like
+# RED, DARK_RED, REV_RED (for red background), and REV_DARK_RED.
+#
+# The 256-colour codes are obtained using xterm_256_color(n), where n
+# is the number of the desired colour.
+
+# C_NORMAL resets to normal, whatever that is
+C_NORMAL = "\033[0m"
+
+UNDERLINE = "\033[4m"
+
+def _gen_ansi_colours():
+ g = globals()
+ for i, name in enumerate(('BLACK', 'RED', 'GREEN', 'YELLOW', 'BLUE',
+ 'MAGENTA', 'CYAN', 'WHITE')):
+ g[name] = "\033[1;3%dm" % i
+ g['DARK_' + name] = "\033[3%dm" % i
+ g['REV_' + name] = "\033[1;4%dm" % i
+ g['REV_DARK_' + name] = "\033[4%dm" % i
+
+_gen_ansi_colours()
+
+
+def xterm_256_colour(n, bg=False, bold=False):
+ weight = '01;' if bold else ''
+ target = '48' if bg else '38'
+
+ return "\033[%s%s;5;%dm" % (weight, target, int(n))