ydpy / lib / colorterm.py

# encoding=UTF-8

# Copyright © 2007, 2008, 2009, 2010 Jakub Wilk <jwilk@jwilk.net>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the “Software”), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

import curses
import functools
import os
import re

def fgcolor(i):
    return _setaf[i]

def bgcolor(i):
    return _setab[i]

def bold():
    return _bold

def reset():
    return _sgr0

BLACK = 0
RED = 1
GREEN = 2
YELLOW = 3
BLUE = 4
MAGENTA = 5
CYAN = 6
WHITE = 7

try:
    curses.setupterm()
except curses.error:
    os.putenv('TERM', 'dumb')
    curses.setupterm()

try:
    curses.tparm('x'.encode())
except TypeError:
    # Python 3 bug. Let's work around it.
    def monkeypatch(original_tparm=curses.tparm):
        def tparm(arg, *args):
            arg = arg.decode()
            return original_tparm(arg, *args)
        curses.tparm = tparm
    monkeypatch()
    del monkeypatch

_empty_bytes = ''.encode()

_strip_delay = functools.partial(re.compile('[$]<[0-9]+>'.encode()).sub, _empty_bytes)


_sgr0 = curses.tigetstr('sgr0') or _empty_bytes
_sgr0 = _strip_delay(_sgr0).decode()

_bold = curses.tigetstr('bold') or _empty_bytes
_bold = _strip_delay(_bold).decode()

_setaf = curses.tigetstr('setaf') or _empty_bytes
_setaf = _strip_delay(_setaf)
_setaf = [curses.tparm(_setaf, j).decode() for j in range(8)]

_setab = curses.tigetstr('setab') or _empty_bytes
_setab = _strip_delay(_setab)
_setab = [curses.tparm(_setab, j).decode() for j in range(8)]

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