~bzr-pqm/bzr/bzr.dev

# Copyright (C) 2010 Canonical Ltd

#

# 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 2 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, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

from __future__ import absolute_import

import os

import sys

class FG(object):

    """Unix terminal foreground color codes (16-color)."""

    RED = '\033[31m'

    GREEN = '\033[32m'

    YELLOW = '\033[33m'

    BLUE = '\033[34m'

    MAGENTA = '\033[35m'

    CYAN = '\033[36m'

    WHITE = '\033[37m'

    # Bold Foreground

    BOLD_RED = '\033[1;31m'

    BOLD_GREEN = '\033[1;32m'

    BOLD_YELLOW = '\033[1;33m'

    BOLD_BLUE = '\033[1;34m'

    BOLD_MAGENTA = '\033[1;35m'

    BOLD_CYAN = '\033[1;36m'

    BOLD_WHITE = '\033[1;37m'

    NONE = '\033[0m'

class BG(object):

    """Unix terminal background color codes (16-color)."""

    BLACK = '\033[40m'

    RED = '\033[41m'

    GREEN = '\033[42m'

    YELLOW = '\033[43m'

    BLUE = '\033[44m'

    MAGENTA = '\033[45m'

    CYAN = '\033[46m'

    WHITE = '\033[47m'

    NONE = '\033[0m'

def color_string(s, fg, bg=''):

    return fg + bg + s + FG.NONE

def re_color_string(compiled_pattern, s, fg):

    return compiled_pattern.sub(fg + r'\1' + FG.NONE, s)

def allow_color():

    if os.name != 'posix':

        return False

    if not sys.stdout.isatty():

        return False

    try:

        import curses

        curses.setupterm()

        return curses.tigetnum('colors') > 2

    except curses.error:

        return False