implementing the file proxy
This commit is contained in:
Gabriel Falcão
parent
cead6007e9
commit
9bc6b72e3a
68
couleur.py
68
couleur.py
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@ -20,41 +20,65 @@ import uuid
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__version__ = '0.2'
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from StringIO import StringIO
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class ColorWriter(StringIO):
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def __init__(self, original):
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self.original = original
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self.old_write = original.write
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def translate_colors(string):
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for attr in filter(lambda x: not x.startswith("_"), dir(forecolors)):
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string = string.replace(
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"#{%s}" % attr,
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getattr(forecolors, attr)
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)
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string = string.replace(
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"#{on:%s}" % attr,
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getattr(backcolors, attr)
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)
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def translate_colors(self, string):
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for attr in filter(lambda x: not x.startswith("_"), dir(forecolors)):
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string = string.replace(
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"#{%s}" % attr,
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getattr(forecolors, attr)
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)
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string = string.replace(
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"#{on:%s}" % attr,
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getattr(backcolors, attr)
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)
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string = string.replace("\n", "%s\n" % modifiers.reset)
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return string
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string = string.replace("\n", "%s\n" % modifiers.reset)
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return string
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class StdOutMocker(StringIO):
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original = sys.__stdout__
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def write(self, string):
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sys.__stdout__.write(translate_colors(string))
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def write(self, what):
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self.old_write(self.translate_colors(what))
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class StdErrMocker(StringIO):
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original = sys.__stderr__
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def write(self, string):
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sys.__stderr__.write(translate_colors(string))
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class Proxy(object):
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def __init__(self, output):
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self.old_write = output.write
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if output is sys.__stdout__:
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output = StdOutMocker()
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elif output is sys.__stderr__:
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output = StdErrMocker()
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self.output = output
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self.writer = ColorWriter(output)
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def enable(self):
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self.output.write = self.writer.write
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if isinstance(self.output, StdOutMocker):
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sys.stdout = self.output
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elif isinstance(self.output, StdErrMocker):
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sys.stderr = self.output
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else:
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self.output.write = lambda x: self.old_write(translate_colors(x))
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def disable(self):
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self.output.write = self.writer.old_write
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if isinstance(self.output, StdOutMocker):
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sys.stdout = self.output.original
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elif isinstance(self.output, StdErrMocker):
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sys.stderr = self.output.original
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else:
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self.output.write = self.old_write
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_proxy_registry = {}
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def proxy(output):
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return Proxy(output)
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if output not in _proxy_registry.keys():
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_proxy_registry[output] = Proxy(output)
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return _proxy_registry[output]
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def ansify(number):
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"""Wraps the given ansi code to a proper escaped python output
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@ -1,69 +0,0 @@
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# -*- coding: utf-8 -*-
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# <Couleur - fancy shell output for python>
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# Copyright (C) <2010> Gabriel Falcão <gabriel@nacaolivre.org>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import sys
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from StringIO import StringIO
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from nose.tools import with_setup, assert_equals
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import couleur
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def prepare_stdout():
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if isinstance(sys.stdout, StringIO):
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del sys.stdout
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std = StringIO()
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sys.stdout = std
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def assert_stdout(expected):
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string = sys.stdout.getvalue()
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assert_equals(string, expected)
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@with_setup(prepare_stdout)
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def test_output_black_foreground():
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"Test stdout filter output: black foreground"
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couleur.proxy(sys.stdout).enable()
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print "#{black}Hello Black!"
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assert_stdout('\033[30mHello Black!\033[0m\n')
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couleur.proxy(sys.stdout).disable()
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@with_setup(prepare_stdout)
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def test_output_black_on_white_foreground():
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"Test stdout filter output: black foreground on white background"
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couleur.proxy(sys.stdout).enable()
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print "#{black}#{on:white}Hello Black!"
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assert_stdout('\033[30m\033[47mHello Black!\033[0m\n')
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couleur.proxy(sys.stdout).disable()
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@with_setup(prepare_stdout)
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def test_output_green_foreground():
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"Test stdout filter output: green foreground"
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couleur.proxy(sys.stdout).enable()
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print "#{green}Hello Green!"
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assert_stdout('\033[32mHello Green!\033[0m\n')
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couleur.proxy(sys.stdout).disable()
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@with_setup(prepare_stdout)
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def test_output_green_and_red_on_white_foreground():
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"Test stdout filter output: green foreground and white on red background"
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couleur.proxy(sys.stdout).enable()
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print "#{green}Hello #{white}#{on:red}Italy!"
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assert_stdout('\033[32mHello \033[37m\033[41mItaly!\033[0m\n')
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couleur.proxy(sys.stdout).disable()
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