/usr/lib/python2.7/dist-packages/mutagen/_senf/_winansi.py is in python-mutagen 1.36-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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# Copyright 2016 Christoph Reiter
#
# 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.
import ctypes
import re
import atexit
from . import _winapi as winapi
def ansi_parse(code):
"""Returns command, (args)"""
return code[-1:], tuple([int(v or "0") for v in code[2:-1].split(";")])
def ansi_split(text, _re=re.compile(u"(\x1b\[(\d*;?)*\S)")):
"""Yields (is_ansi, text)"""
for part in _re.split(text):
if part:
yield (bool(_re.match(part)), part)
class AnsiCommand(object):
TEXT = "m"
MOVE_UP = "A"
MOVE_DOWN = "B"
MOVE_FORWARD = "C"
MOVE_BACKWARD = "D"
SET_POS = "H"
SET_POS_ALT = "f"
SAVE_POS = "s"
RESTORE_POS = "u"
class TextAction(object):
RESET_ALL = 0
SET_BOLD = 1
SET_DIM = 2
SET_ITALIC = 3
SET_UNDERLINE = 4
SET_BLINK = 5
SET_BLINK_FAST = 6
SET_REVERSE = 7
SET_HIDDEN = 8
RESET_BOLD = 21
RESET_DIM = 22
RESET_ITALIC = 23
RESET_UNDERLINE = 24
RESET_BLINK = 25
RESET_BLINK_FAST = 26
RESET_REVERSE = 27
RESET_HIDDEN = 28
FG_BLACK = 30
FG_RED = 31
FG_GREEN = 32
FG_YELLOW = 33
FG_BLUE = 34
FG_MAGENTA = 35
FG_CYAN = 36
FG_WHITE = 37
FG_DEFAULT = 39
FG_LIGHT_BLACK = 90
FG_LIGHT_RED = 91
FG_LIGHT_GREEN = 92
FG_LIGHT_YELLOW = 93
FG_LIGHT_BLUE = 94
FG_LIGHT_MAGENTA = 95
FG_LIGHT_CYAN = 96
FG_LIGHT_WHITE = 97
BG_BLACK = 40
BG_RED = 41
BG_GREEN = 42
BG_YELLOW = 43
BG_BLUE = 44
BG_MAGENTA = 45
BG_CYAN = 46
BG_WHITE = 47
BG_DEFAULT = 49
BG_LIGHT_BLACK = 100
BG_LIGHT_RED = 101
BG_LIGHT_GREEN = 102
BG_LIGHT_YELLOW = 103
BG_LIGHT_BLUE = 104
BG_LIGHT_MAGENTA = 105
BG_LIGHT_CYAN = 106
BG_LIGHT_WHITE = 107
class AnsiState(object):
def __init__(self):
self.default_attrs = None
self.bold = False
self.bg_light = False
self.fg_light = False
self.saved_pos = (0, 0)
def do_text_action(self, attrs, action):
# In case the external state has changed, apply it it to ours.
# Mostly the first time this is called.
if attrs & winapi.FOREGROUND_INTENSITY and not self.fg_light \
and not self.bold:
self.fg_light = True
if attrs & winapi.BACKGROUND_INTENSITY and not self.bg_light:
self.bg_light = True
dark_fg = {
TextAction.FG_BLACK: 0,
TextAction.FG_RED: winapi.FOREGROUND_RED,
TextAction.FG_GREEN: winapi.FOREGROUND_GREEN,
TextAction.FG_YELLOW:
winapi.FOREGROUND_GREEN | winapi.FOREGROUND_RED,
TextAction.FG_BLUE: winapi.FOREGROUND_BLUE,
TextAction.FG_MAGENTA: winapi.FOREGROUND_BLUE |
winapi.FOREGROUND_RED,
TextAction.FG_CYAN:
winapi.FOREGROUND_BLUE | winapi.FOREGROUND_GREEN,
TextAction.FG_WHITE:
winapi.FOREGROUND_BLUE | winapi.FOREGROUND_GREEN |
winapi.FOREGROUND_RED,
}
dark_bg = {
TextAction.BG_BLACK: 0,
TextAction.BG_RED: winapi.BACKGROUND_RED,
TextAction.BG_GREEN: winapi.BACKGROUND_GREEN,
TextAction.BG_YELLOW:
winapi.BACKGROUND_GREEN | winapi.BACKGROUND_RED,
TextAction.BG_BLUE: winapi.BACKGROUND_BLUE,
TextAction.BG_MAGENTA:
winapi.BACKGROUND_BLUE | winapi.BACKGROUND_RED,
TextAction.BG_CYAN:
winapi.BACKGROUND_BLUE | winapi.BACKGROUND_GREEN,
TextAction.BG_WHITE:
winapi.BACKGROUND_BLUE | winapi.BACKGROUND_GREEN |
winapi.BACKGROUND_RED,
}
light_fg = {
TextAction.FG_LIGHT_BLACK: 0,
TextAction.FG_LIGHT_RED: winapi.FOREGROUND_RED,
TextAction.FG_LIGHT_GREEN: winapi.FOREGROUND_GREEN,
TextAction.FG_LIGHT_YELLOW:
winapi.FOREGROUND_GREEN | winapi.FOREGROUND_RED,
TextAction.FG_LIGHT_BLUE: winapi.FOREGROUND_BLUE,
TextAction.FG_LIGHT_MAGENTA:
winapi.FOREGROUND_BLUE | winapi.FOREGROUND_RED,
TextAction.FG_LIGHT_CYAN:
winapi.FOREGROUND_BLUE | winapi.FOREGROUND_GREEN,
TextAction.FG_LIGHT_WHITE:
winapi.FOREGROUND_BLUE | winapi.FOREGROUND_GREEN |
winapi.FOREGROUND_RED,
}
light_bg = {
TextAction.BG_LIGHT_BLACK: 0,
TextAction.BG_LIGHT_RED: winapi.BACKGROUND_RED,
TextAction.BG_LIGHT_GREEN: winapi.BACKGROUND_GREEN,
TextAction.BG_LIGHT_YELLOW:
winapi.BACKGROUND_GREEN | winapi.BACKGROUND_RED,
TextAction.BG_LIGHT_BLUE: winapi.BACKGROUND_BLUE,
TextAction.BG_LIGHT_MAGENTA:
winapi.BACKGROUND_BLUE | winapi.BACKGROUND_RED,
TextAction.BG_LIGHT_CYAN:
winapi.BACKGROUND_BLUE | winapi.BACKGROUND_GREEN,
TextAction.BG_LIGHT_WHITE:
winapi.BACKGROUND_BLUE | winapi.BACKGROUND_GREEN |
winapi.BACKGROUND_RED,
}
if action == TextAction.RESET_ALL:
attrs = self.default_attrs
self.bold = self.fg_light = self.bg_light = False
elif action == TextAction.SET_BOLD:
self.bold = True
elif action == TextAction.RESET_BOLD:
self.bold = False
elif action == TextAction.SET_DIM:
self.bold = False
elif action == TextAction.SET_REVERSE:
attrs |= winapi.COMMON_LVB_REVERSE_VIDEO
elif action == TextAction.RESET_REVERSE:
attrs &= ~winapi.COMMON_LVB_REVERSE_VIDEO
elif action == TextAction.SET_UNDERLINE:
attrs |= winapi.COMMON_LVB_UNDERSCORE
elif action == TextAction.RESET_UNDERLINE:
attrs &= ~winapi.COMMON_LVB_UNDERSCORE
elif action == TextAction.FG_DEFAULT:
attrs = (attrs & ~0xF) | (self.default_attrs & 0xF)
self.fg_light = False
elif action == TextAction.BG_DEFAULT:
attrs = (attrs & ~0xF0) | (self.default_attrs & 0xF0)
self.bg_light = False
elif action in dark_fg:
attrs = (attrs & ~0xF) | dark_fg[action]
self.fg_light = False
elif action in dark_bg:
attrs = (attrs & ~0xF0) | dark_bg[action]
self.bg_light = False
elif action in light_fg:
attrs = (attrs & ~0xF) | light_fg[action]
self.fg_light = True
elif action in light_bg:
attrs = (attrs & ~0xF0) | light_bg[action]
self.bg_light = True
if self.fg_light or self.bold:
attrs |= winapi.FOREGROUND_INTENSITY
else:
attrs &= ~winapi.FOREGROUND_INTENSITY
if self.bg_light:
attrs |= winapi.BACKGROUND_INTENSITY
else:
attrs &= ~winapi.BACKGROUND_INTENSITY
return attrs
def apply(self, handle, code):
buffer_info = winapi.CONSOLE_SCREEN_BUFFER_INFO()
if not winapi.GetConsoleScreenBufferInfo(handle,
ctypes.byref(buffer_info)):
return
attrs = buffer_info.wAttributes
# We take the first attrs we see as default
if self.default_attrs is None:
self.default_attrs = attrs
# Make sure that like with linux terminals the program doesn't
# affect the prompt after it exits
atexit.register(
winapi.SetConsoleTextAttribute, handle, self.default_attrs)
cmd, args = ansi_parse(code)
if cmd == AnsiCommand.TEXT:
for action in args:
attrs = self.do_text_action(attrs, action)
winapi.SetConsoleTextAttribute(handle, attrs)
elif cmd in (AnsiCommand.MOVE_UP, AnsiCommand.MOVE_DOWN,
AnsiCommand.MOVE_FORWARD, AnsiCommand.MOVE_BACKWARD):
coord = buffer_info.dwCursorPosition
x, y = coord.X, coord.Y
amount = max(args[0], 1)
if cmd == AnsiCommand.MOVE_UP:
y -= amount
elif cmd == AnsiCommand.MOVE_DOWN:
y += amount
elif cmd == AnsiCommand.MOVE_FORWARD:
x += amount
elif cmd == AnsiCommand.MOVE_BACKWARD:
x -= amount
x = max(x, 0)
y = max(y, 0)
winapi.SetConsoleCursorPosition(handle, winapi.COORD(x, y))
elif cmd in (AnsiCommand.SET_POS, AnsiCommand.SET_POS_ALT):
args = list(args)
while len(args) < 2:
args.append(0)
x, y = args[:2]
win_rect = buffer_info.srWindow
x += win_rect.Left - 1
y += win_rect.Top - 1
x = max(x, 0)
y = max(y, 0)
winapi.SetConsoleCursorPosition(handle, winapi.COORD(x, y))
elif cmd == AnsiCommand.SAVE_POS:
win_rect = buffer_info.srWindow
coord = buffer_info.dwCursorPosition
x, y = coord.X, coord.Y
x -= win_rect.Left
y -= win_rect.Top
self.saved_pos = (x, y)
elif cmd == AnsiCommand.RESTORE_POS:
win_rect = buffer_info.srWindow
x, y = self.saved_pos
x += win_rect.Left
y += win_rect.Top
winapi.SetConsoleCursorPosition(handle, winapi.COORD(x, y))
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