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# -*- coding: ascii -*-
#
# Copyright 2007, 2008, 2009, 2010, 2011
# Andr\xe9 Malo or his licensors, as applicable
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
=================
Terminal writer
=================
"""
__author__ = u"Andr\xe9 Malo"
__docformat__ = "restructuredtext en"
import sys as _sys
class _INFO(dict):
""" Terminal info dict """
def __init__(self):
""" Initialization """
dict.__init__(self, {
'NORMAL': '',
'BOLD': '',
'ERASE': '\n',
'RED': '',
'YELLOW': '',
'GREEN': '',
})
try:
import curses as _curses
except ImportError:
# fixup if a submodule of curses failed.
if 'curses' in _sys.modules:
del _sys.modules['curses']
else:
try:
_curses.setupterm()
except (TypeError, _curses.error):
pass
else:
def make_color(color):
""" Make color control string """
seq = _curses.tigetstr('setaf')
if seq is not None:
# XXX may fail - need better logic
seq = seq.replace("%p1", "") % color
return seq
self['NORMAL'] = _curses.tigetstr('sgr0')
self['BOLD'] = _curses.tigetstr('bold')
erase = _curses.tigetstr('el1')
if erase is not None:
self['ERASE'] = erase + _curses.tigetstr('cr')
self['RED'] = make_color(_curses.COLOR_RED)
self['YELLOW'] = make_color(_curses.COLOR_YELLOW)
self['GREEN'] = make_color(_curses.COLOR_GREEN)
def __getitem__(self, key):
""" Deliver always """
dict.get(self, key) or ""
def terminfo():
""" Get info singleton """
# pylint: disable = E1101, W0612
if terminfo.info is None:
terminfo.info = _INFO()
return terminfo.info
terminfo.info = None
def write(fmt, **kwargs):
""" Write stuff on the terminal """
parm = dict(terminfo())
parm.update(kwargs)
_sys.stdout.write(fmt % parm)
_sys.stdout.flush()
def green(bmt, **kwargs):
""" Write something in green on screen """
announce("%%(GREEN)s%s%%(NORMAL)s" % bmt, **kwargs)
def red(bmt, **kwargs):
""" Write something in red on the screen """
announce("%%(BOLD)s%%(RED)s%s%%(NORMAL)s" % bmt, **kwargs)
def yellow(fmt, **kwargs):
""" Write something in yellow on the screen """
announce("%%(BOLD)s%%(YELLOW)s%s%%(NORMAL)s" % fmt, **kwargs)
def announce(fmt, **kwargs):
""" Announce something """
write(fmt, **kwargs)
_sys.stdout.write("\n")
_sys.stdout.flush()
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