Updating colorama (Issue #1784)

This commit is contained in:
Miroslav Stampar 2016-03-30 15:11:34 +02:00
parent 0245ce6228
commit e83d8f6143
8 changed files with 378 additions and 157 deletions

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@ -12,7 +12,7 @@ This file lists bundled packages and their associated licensing terms.
Copyright (C) 2005, Zope Corporation.
Copyright (C) 1998-2000, Gisle Aas.
* The Colorama library located under thirdparty/colorama/.
Copyright (C) 2010, Jonathan Hartley.
Copyright (C) 2013, Jonathan Hartley.
* The Fcrypt library located under thirdparty/fcrypt/.
Copyright (C) 2000, 2001, 2004 Carey Evans.
* The Odict library located under thirdparty/odict/.

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@ -20,7 +20,7 @@ from lib.core.enums import OS
from lib.core.revision import getRevisionNumber
# sqlmap version (<major>.<minor>.<month>.<monthly commit>)
VERSION = "1.0.3.9"
VERSION = "1.0.3.10"
REVISION = getRevisionNumber()
STABLE = VERSION.count('.') <= 2
VERSION_STRING = "sqlmap/%s#%s" % (VERSION, "stable" if STABLE else "dev")

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@ -0,0 +1,7 @@
# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
from .initialise import init, deinit, reinit, colorama_text
from .ansi import Fore, Back, Style, Cursor
from .ansitowin32 import AnsiToWin32
__version__ = '0.3.7'

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@ -1,21 +1,52 @@
# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
'''
This module generates ANSI character codes to printing colors to terminals.
See: http://en.wikipedia.org/wiki/ANSI_escape_code
'''
CSI = '\033['
OSC = '\033]'
BEL = '\007'
def code_to_chars(code):
return CSI + str(code) + 'm'
def set_title(title):
return OSC + '2;' + title + BEL
def clear_screen(mode=2):
return CSI + str(mode) + 'J'
def clear_line(mode=2):
return CSI + str(mode) + 'K'
class AnsiCodes(object):
def __init__(self, codes):
for name in dir(codes):
def __init__(self):
# the subclasses declare class attributes which are numbers.
# Upon instantiation we define instance attributes, which are the same
# as the class attributes but wrapped with the ANSI escape sequence
for name in dir(self):
if not name.startswith('_'):
value = getattr(codes, name)
value = getattr(self, name)
setattr(self, name, code_to_chars(value))
class AnsiFore:
class AnsiCursor(object):
def UP(self, n=1):
return CSI + str(n) + 'A'
def DOWN(self, n=1):
return CSI + str(n) + 'B'
def FORWARD(self, n=1):
return CSI + str(n) + 'C'
def BACK(self, n=1):
return CSI + str(n) + 'D'
def POS(self, x=1, y=1):
return CSI + str(y) + ';' + str(x) + 'H'
class AnsiFore(AnsiCodes):
BLACK = 30
RED = 31
GREEN = 32
@ -26,7 +57,18 @@ class AnsiFore:
WHITE = 37
RESET = 39
class AnsiBack:
# These are fairly well supported, but not part of the standard.
LIGHTBLACK_EX = 90
LIGHTRED_EX = 91
LIGHTGREEN_EX = 92
LIGHTYELLOW_EX = 93
LIGHTBLUE_EX = 94
LIGHTMAGENTA_EX = 95
LIGHTCYAN_EX = 96
LIGHTWHITE_EX = 97
class AnsiBack(AnsiCodes):
BLACK = 40
RED = 41
GREEN = 42
@ -37,13 +79,24 @@ class AnsiBack:
WHITE = 47
RESET = 49
class AnsiStyle:
# These are fairly well supported, but not part of the standard.
LIGHTBLACK_EX = 100
LIGHTRED_EX = 101
LIGHTGREEN_EX = 102
LIGHTYELLOW_EX = 103
LIGHTBLUE_EX = 104
LIGHTMAGENTA_EX = 105
LIGHTCYAN_EX = 106
LIGHTWHITE_EX = 107
class AnsiStyle(AnsiCodes):
BRIGHT = 1
DIM = 2
NORMAL = 22
RESET_ALL = 0
Fore = AnsiCodes( AnsiFore )
Back = AnsiCodes( AnsiBack )
Style = AnsiCodes( AnsiStyle )
Fore = AnsiFore()
Back = AnsiBack()
Style = AnsiStyle()
Cursor = AnsiCursor()

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@ -1,16 +1,22 @@
# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
import re
import sys
import os
from .ansi import AnsiFore, AnsiBack, AnsiStyle, Style
from .winterm import WinTerm, WinColor, WinStyle
from .win32 import windll
from .win32 import windll, winapi_test
winterm = None
if windll is not None:
winterm = WinTerm()
def is_stream_closed(stream):
return not hasattr(stream, 'closed') or stream.closed
def is_a_tty(stream):
return hasattr(stream, 'isatty') and stream.isatty()
@ -40,7 +46,8 @@ class AnsiToWin32(object):
sequences from the text, and if outputting to a tty, will convert them into
win32 function calls.
'''
ANSI_RE = re.compile('\033\[((?:\d|;)*)([a-zA-Z])')
ANSI_CSI_RE = re.compile('\001?\033\[((?:\d|;)*)([a-zA-Z])\002?') # Control Sequence Introducer
ANSI_OSC_RE = re.compile('\001?\033\]((?:.|;)*?)(\x07)\002?') # Operating System Command
def __init__(self, wrapped, convert=None, strip=None, autoreset=False):
# The wrapped stream (normally sys.stdout or sys.stderr)
@ -52,16 +59,21 @@ class AnsiToWin32(object):
# create the proxy wrapping our output stream
self.stream = StreamWrapper(wrapped, self)
on_windows = sys.platform.startswith('win')
on_windows = os.name == 'nt'
# We test if the WinAPI works, because even if we are on Windows
# we may be using a terminal that doesn't support the WinAPI
# (e.g. Cygwin Terminal). In this case it's up to the terminal
# to support the ANSI codes.
conversion_supported = on_windows and winapi_test()
# should we strip ANSI sequences from our output?
if strip is None:
strip = on_windows
strip = conversion_supported or (not is_stream_closed(wrapped) and not is_a_tty(wrapped))
self.strip = strip
# should we should convert ANSI sequences into win32 calls?
if convert is None:
convert = on_windows and is_a_tty(wrapped)
convert = conversion_supported and not is_stream_closed(wrapped) and is_a_tty(wrapped)
self.convert = convert
# dict of ansi codes to win32 functions and parameters
@ -70,7 +82,6 @@ class AnsiToWin32(object):
# are we wrapping stderr?
self.on_stderr = self.wrapped is sys.stderr
def should_wrap(self):
'''
True if this class is actually needed. If false, then the output
@ -81,7 +92,6 @@ class AnsiToWin32(object):
'''
return self.convert or self.strip or self.autoreset
def get_win32_calls(self):
if self.convert and winterm:
return {
@ -98,6 +108,14 @@ class AnsiToWin32(object):
AnsiFore.CYAN: (winterm.fore, WinColor.CYAN),
AnsiFore.WHITE: (winterm.fore, WinColor.GREY),
AnsiFore.RESET: (winterm.fore, ),
AnsiFore.LIGHTBLACK_EX: (winterm.fore, WinColor.BLACK, True),
AnsiFore.LIGHTRED_EX: (winterm.fore, WinColor.RED, True),
AnsiFore.LIGHTGREEN_EX: (winterm.fore, WinColor.GREEN, True),
AnsiFore.LIGHTYELLOW_EX: (winterm.fore, WinColor.YELLOW, True),
AnsiFore.LIGHTBLUE_EX: (winterm.fore, WinColor.BLUE, True),
AnsiFore.LIGHTMAGENTA_EX: (winterm.fore, WinColor.MAGENTA, True),
AnsiFore.LIGHTCYAN_EX: (winterm.fore, WinColor.CYAN, True),
AnsiFore.LIGHTWHITE_EX: (winterm.fore, WinColor.GREY, True),
AnsiBack.BLACK: (winterm.back, WinColor.BLACK),
AnsiBack.RED: (winterm.back, WinColor.RED),
AnsiBack.GREEN: (winterm.back, WinColor.GREEN),
@ -107,8 +125,16 @@ class AnsiToWin32(object):
AnsiBack.CYAN: (winterm.back, WinColor.CYAN),
AnsiBack.WHITE: (winterm.back, WinColor.GREY),
AnsiBack.RESET: (winterm.back, ),
AnsiBack.LIGHTBLACK_EX: (winterm.back, WinColor.BLACK, True),
AnsiBack.LIGHTRED_EX: (winterm.back, WinColor.RED, True),
AnsiBack.LIGHTGREEN_EX: (winterm.back, WinColor.GREEN, True),
AnsiBack.LIGHTYELLOW_EX: (winterm.back, WinColor.YELLOW, True),
AnsiBack.LIGHTBLUE_EX: (winterm.back, WinColor.BLUE, True),
AnsiBack.LIGHTMAGENTA_EX: (winterm.back, WinColor.MAGENTA, True),
AnsiBack.LIGHTCYAN_EX: (winterm.back, WinColor.CYAN, True),
AnsiBack.LIGHTWHITE_EX: (winterm.back, WinColor.GREY, True),
}
return dict()
def write(self, text):
if self.strip or self.convert:
@ -123,7 +149,7 @@ class AnsiToWin32(object):
def reset_all(self):
if self.convert:
self.call_win32('m', (0,))
elif is_a_tty(self.wrapped):
elif not self.strip and not is_stream_closed(self.wrapped):
self.wrapped.write(Style.RESET_ALL)
@ -134,7 +160,8 @@ class AnsiToWin32(object):
calls.
'''
cursor = 0
for match in self.ANSI_RE.finditer(text):
text = self.convert_osc(text)
for match in self.ANSI_CSI_RE.finditer(text):
start, end = match.span()
self.write_plain_text(text, cursor, start)
self.convert_ansi(*match.groups())
@ -150,21 +177,29 @@ class AnsiToWin32(object):
def convert_ansi(self, paramstring, command):
if self.convert:
params = self.extract_params(paramstring)
params = self.extract_params(command, paramstring)
self.call_win32(command, params)
def extract_params(self, paramstring):
def split(paramstring):
for p in paramstring.split(';'):
if p != '':
yield int(p)
return tuple(split(paramstring))
def extract_params(self, command, paramstring):
if command in 'Hf':
params = tuple(int(p) if len(p) != 0 else 1 for p in paramstring.split(';'))
while len(params) < 2:
# defaults:
params = params + (1,)
else:
params = tuple(int(p) for p in paramstring.split(';') if len(p) != 0)
if len(params) == 0:
# defaults:
if command in 'JKm':
params = (0,)
elif command in 'ABCD':
params = (1,)
return params
def call_win32(self, command, params):
if params == []:
params = [0]
if command == 'm':
for param in params:
if param in self.win32_calls:
@ -173,17 +208,29 @@ class AnsiToWin32(object):
args = func_args[1:]
kwargs = dict(on_stderr=self.on_stderr)
func(*args, **kwargs)
elif command in ('H', 'f'): # set cursor position
func = winterm.set_cursor_position
func(params, on_stderr=self.on_stderr)
elif command in ('J'):
func = winterm.erase_data
func(params, on_stderr=self.on_stderr)
elif command == 'A':
if params == () or params == None:
num_rows = 1
else:
num_rows = params[0]
func = winterm.cursor_up
func(num_rows, on_stderr=self.on_stderr)
elif command in 'J':
winterm.erase_screen(params[0], on_stderr=self.on_stderr)
elif command in 'K':
winterm.erase_line(params[0], on_stderr=self.on_stderr)
elif command in 'Hf': # cursor position - absolute
winterm.set_cursor_position(params, on_stderr=self.on_stderr)
elif command in 'ABCD': # cursor position - relative
n = params[0]
# A - up, B - down, C - forward, D - back
x, y = {'A': (0, -n), 'B': (0, n), 'C': (n, 0), 'D': (-n, 0)}[command]
winterm.cursor_adjust(x, y, on_stderr=self.on_stderr)
def convert_osc(self, text):
for match in self.ANSI_OSC_RE.finditer(text):
start, end = match.span()
text = text[:start] + text[end:]
paramstring, command = match.groups()
if command in '\x07': # \x07 = BEL
params = paramstring.split(";")
# 0 - change title and icon (we will only change title)
# 1 - change icon (we don't support this)
# 2 - change title
if params[0] in '02':
winterm.set_title(params[1])
return text

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@ -1,19 +1,22 @@
# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
import atexit
import contextlib
import sys
from .ansitowin32 import AnsiToWin32
orig_stdout = sys.stdout
orig_stderr = sys.stderr
orig_stdout = None
orig_stderr = None
wrapped_stdout = sys.stdout
wrapped_stderr = sys.stderr
wrapped_stdout = None
wrapped_stderr = None
atexit_done = False
def reset_all():
if AnsiToWin32 is not None: # Issue #74: objects might become None at exit
AnsiToWin32(orig_stdout).reset_all()
@ -23,8 +26,19 @@ def init(autoreset=False, convert=None, strip=None, wrap=True):
raise ValueError('wrap=False conflicts with any other arg=True')
global wrapped_stdout, wrapped_stderr
global orig_stdout, orig_stderr
orig_stdout = sys.stdout
orig_stderr = sys.stderr
if sys.stdout is None:
wrapped_stdout = None
else:
sys.stdout = wrapped_stdout = \
wrap_stream(orig_stdout, convert, strip, autoreset, wrap)
if sys.stderr is None:
wrapped_stderr = None
else:
sys.stderr = wrapped_stderr = \
wrap_stream(orig_stderr, convert, strip, autoreset, wrap)
@ -35,13 +49,26 @@ def init(autoreset=False, convert=None, strip=None, wrap=True):
def deinit():
if orig_stdout is not None:
sys.stdout = orig_stdout
if orig_stderr is not None:
sys.stderr = orig_stderr
@contextlib.contextmanager
def colorama_text(*args, **kwargs):
init(*args, **kwargs)
try:
yield
finally:
deinit()
def reinit():
if wrapped_stdout is not None:
sys.stdout = wrapped_stdout
sys.stderr = wrapped_stdout
if wrapped_stderr is not None:
sys.stderr = wrapped_stderr
def wrap_stream(stream, convert, strip, autoreset, wrap):

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@ -1,51 +1,30 @@
# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
# from winbase.h
STDOUT = -11
STDERR = -12
try:
from ctypes import windll
except ImportError:
import ctypes
from ctypes import LibraryLoader
windll = LibraryLoader(ctypes.WinDLL)
from ctypes import wintypes
except (AttributeError, ImportError):
windll = None
SetConsoleTextAttribute = lambda *_: None
winapi_test = lambda *_: None
else:
from ctypes import (
byref, Structure, c_char, c_short, c_uint32, c_ushort
)
from ctypes import byref, Structure, c_char, POINTER
handles = {
STDOUT: windll.kernel32.GetStdHandle(STDOUT),
STDERR: windll.kernel32.GetStdHandle(STDERR),
}
SHORT = c_short
WORD = c_ushort
DWORD = c_uint32
TCHAR = c_char
class COORD(Structure):
"""struct in wincon.h"""
_fields_ = [
('X', SHORT),
('Y', SHORT),
]
class SMALL_RECT(Structure):
"""struct in wincon.h."""
_fields_ = [
("Left", SHORT),
("Top", SHORT),
("Right", SHORT),
("Bottom", SHORT),
]
COORD = wintypes._COORD
class CONSOLE_SCREEN_BUFFER_INFO(Structure):
"""struct in wincon.h."""
_fields_ = [
("dwSize", COORD),
("dwCursorPosition", COORD),
("wAttributes", WORD),
("srWindow", SMALL_RECT),
("wAttributes", wintypes.WORD),
("srWindow", wintypes.SMALL_RECT),
("dwMaximumWindowSize", COORD),
]
def __str__(self):
@ -57,20 +36,83 @@ else:
, self.dwMaximumWindowSize.Y, self.dwMaximumWindowSize.X
)
_GetStdHandle = windll.kernel32.GetStdHandle
_GetStdHandle.argtypes = [
wintypes.DWORD,
]
_GetStdHandle.restype = wintypes.HANDLE
_GetConsoleScreenBufferInfo = windll.kernel32.GetConsoleScreenBufferInfo
_GetConsoleScreenBufferInfo.argtypes = [
wintypes.HANDLE,
POINTER(CONSOLE_SCREEN_BUFFER_INFO),
]
_GetConsoleScreenBufferInfo.restype = wintypes.BOOL
_SetConsoleTextAttribute = windll.kernel32.SetConsoleTextAttribute
_SetConsoleTextAttribute.argtypes = [
wintypes.HANDLE,
wintypes.WORD,
]
_SetConsoleTextAttribute.restype = wintypes.BOOL
_SetConsoleCursorPosition = windll.kernel32.SetConsoleCursorPosition
_SetConsoleCursorPosition.argtypes = [
wintypes.HANDLE,
COORD,
]
_SetConsoleCursorPosition.restype = wintypes.BOOL
_FillConsoleOutputCharacterA = windll.kernel32.FillConsoleOutputCharacterA
_FillConsoleOutputCharacterA.argtypes = [
wintypes.HANDLE,
c_char,
wintypes.DWORD,
COORD,
POINTER(wintypes.DWORD),
]
_FillConsoleOutputCharacterA.restype = wintypes.BOOL
_FillConsoleOutputAttribute = windll.kernel32.FillConsoleOutputAttribute
_FillConsoleOutputAttribute.argtypes = [
wintypes.HANDLE,
wintypes.WORD,
wintypes.DWORD,
COORD,
POINTER(wintypes.DWORD),
]
_FillConsoleOutputAttribute.restype = wintypes.BOOL
_SetConsoleTitleW = windll.kernel32.SetConsoleTitleA
_SetConsoleTitleW.argtypes = [
wintypes.LPCSTR
]
_SetConsoleTitleW.restype = wintypes.BOOL
handles = {
STDOUT: _GetStdHandle(STDOUT),
STDERR: _GetStdHandle(STDERR),
}
def winapi_test():
handle = handles[STDOUT]
csbi = CONSOLE_SCREEN_BUFFER_INFO()
success = _GetConsoleScreenBufferInfo(
handle, byref(csbi))
return bool(success)
def GetConsoleScreenBufferInfo(stream_id=STDOUT):
handle = handles[stream_id]
csbi = CONSOLE_SCREEN_BUFFER_INFO()
success = windll.kernel32.GetConsoleScreenBufferInfo(
success = _GetConsoleScreenBufferInfo(
handle, byref(csbi))
return csbi
def SetConsoleTextAttribute(stream_id, attrs):
handle = handles[stream_id]
return windll.kernel32.SetConsoleTextAttribute(handle, attrs)
return _SetConsoleTextAttribute(handle, attrs)
def SetConsoleCursorPosition(stream_id, position):
def SetConsoleCursorPosition(stream_id, position, adjust=True):
position = COORD(*position)
# If the position is out of range, do nothing.
if position.Y <= 0 or position.X <= 0:
@ -79,31 +121,34 @@ else:
# 1. being 0-based, while ANSI is 1-based.
# 2. expecting (x,y), while ANSI uses (y,x).
adjusted_position = COORD(position.Y - 1, position.X - 1)
if adjust:
# Adjust for viewport's scroll position
sr = GetConsoleScreenBufferInfo(STDOUT).srWindow
adjusted_position.Y += sr.Top
adjusted_position.X += sr.Left
# Resume normal processing
handle = handles[stream_id]
return windll.kernel32.SetConsoleCursorPosition(handle, adjusted_position)
return _SetConsoleCursorPosition(handle, adjusted_position)
def FillConsoleOutputCharacter(stream_id, char, length, start):
handle = handles[stream_id]
char = TCHAR(char)
length = DWORD(length)
num_written = DWORD(0)
char = c_char(char.encode())
length = wintypes.DWORD(length)
num_written = wintypes.DWORD(0)
# Note that this is hard-coded for ANSI (vs wide) bytes.
success = windll.kernel32.FillConsoleOutputCharacterA(
success = _FillConsoleOutputCharacterA(
handle, char, length, start, byref(num_written))
return num_written.value
def FillConsoleOutputAttribute(stream_id, attr, length, start):
''' FillConsoleOutputAttribute( hConsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten )'''
handle = handles[stream_id]
attribute = WORD(attr)
length = DWORD(length)
num_written = DWORD(0)
attribute = wintypes.WORD(attr)
length = wintypes.DWORD(length)
num_written = wintypes.DWORD(0)
# Note that this is hard-coded for ANSI (vs wide) bytes.
return windll.kernel32.FillConsoleOutputAttribute(
return _FillConsoleOutputAttribute(
handle, attribute, length, start, byref(num_written))
def SetConsoleTitle(title):
return _SetConsoleTitleW(title)

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@ -1,4 +1,4 @@
# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
from . import win32
@ -17,7 +17,7 @@ class WinColor(object):
class WinStyle(object):
NORMAL = 0x00 # dim text, dim background
BRIGHT = 0x08 # bright text, dim background
BRIGHT_BACKGROUND = 0x80 # dim text, bright background
class WinTerm(object):
@ -27,29 +27,44 @@ class WinTerm(object):
self._default_fore = self._fore
self._default_back = self._back
self._default_style = self._style
# In order to emulate LIGHT_EX in windows, we borrow the BRIGHT style.
# So that LIGHT_EX colors and BRIGHT style do not clobber each other,
# we track them separately, since LIGHT_EX is overwritten by Fore/Back
# and BRIGHT is overwritten by Style codes.
self._light = 0
def get_attrs(self):
return self._fore + self._back * 16 + self._style
return self._fore + self._back * 16 + (self._style | self._light)
def set_attrs(self, value):
self._fore = value & 7
self._back = (value >> 4) & 7
self._style = value & WinStyle.BRIGHT
self._style = value & (WinStyle.BRIGHT | WinStyle.BRIGHT_BACKGROUND)
def reset_all(self, on_stderr=None):
self.set_attrs(self._default)
self.set_console(attrs=self._default)
def fore(self, fore=None, on_stderr=False):
def fore(self, fore=None, light=False, on_stderr=False):
if fore is None:
fore = self._default_fore
self._fore = fore
# Emulate LIGHT_EX with BRIGHT Style
if light:
self._light |= WinStyle.BRIGHT
else:
self._light &= ~WinStyle.BRIGHT
self.set_console(on_stderr=on_stderr)
def back(self, back=None, on_stderr=False):
def back(self, back=None, light=False, on_stderr=False):
if back is None:
back = self._default_back
self._back = back
# Emulate LIGHT_EX with BRIGHT_BACKGROUND Style
if light:
self._light |= WinStyle.BRIGHT_BACKGROUND
else:
self._light &= ~WinStyle.BRIGHT_BACKGROUND
self.set_console(on_stderr=on_stderr)
def style(self, style=None, on_stderr=False):
@ -84,37 +99,64 @@ class WinTerm(object):
handle = win32.STDERR
win32.SetConsoleCursorPosition(handle, position)
def cursor_up(self, num_rows=0, on_stderr=False):
if num_rows == 0:
return
def cursor_adjust(self, x, y, on_stderr=False):
handle = win32.STDOUT
if on_stderr:
handle = win32.STDERR
position = self.get_position(handle)
adjusted_position = (position.Y - num_rows, position.X)
self.set_cursor_position(adjusted_position, on_stderr)
adjusted_position = (position.Y + y, position.X + x)
win32.SetConsoleCursorPosition(handle, adjusted_position, adjust=False)
def erase_data(self, mode=0, on_stderr=False):
# 0 (or None) should clear from the cursor to the end of the screen.
def erase_screen(self, mode=0, on_stderr=False):
# 0 should clear from the cursor to the end of the screen.
# 1 should clear from the cursor to the beginning of the screen.
# 2 should clear the entire screen. (And maybe move cursor to (1,1)?)
#
# At the moment, I only support mode 2. From looking at the API, it
# should be possible to calculate a different number of bytes to clear,
# and to do so relative to the cursor position.
if mode[0] not in (2,):
return
# 2 should clear the entire screen, and move cursor to (1,1)
handle = win32.STDOUT
if on_stderr:
handle = win32.STDERR
# here's where we'll home the cursor
coord_screen = win32.COORD(0,0)
csbi = win32.GetConsoleScreenBufferInfo(handle)
# get the number of character cells in the current buffer
dw_con_size = csbi.dwSize.X * csbi.dwSize.Y
cells_in_screen = csbi.dwSize.X * csbi.dwSize.Y
# get number of character cells before current cursor position
cells_before_cursor = csbi.dwSize.X * csbi.dwCursorPosition.Y + csbi.dwCursorPosition.X
if mode == 0:
from_coord = csbi.dwCursorPosition
cells_to_erase = cells_in_screen - cells_before_cursor
if mode == 1:
from_coord = win32.COORD(0, 0)
cells_to_erase = cells_before_cursor
elif mode == 2:
from_coord = win32.COORD(0, 0)
cells_to_erase = cells_in_screen
# fill the entire screen with blanks
win32.FillConsoleOutputCharacter(handle, ord(' '), dw_con_size, coord_screen)
win32.FillConsoleOutputCharacter(handle, ' ', cells_to_erase, from_coord)
# now set the buffer's attributes accordingly
win32.FillConsoleOutputAttribute(handle, self.get_attrs(), dw_con_size, coord_screen );
# put the cursor at (0, 0)
win32.SetConsoleCursorPosition(handle, (coord_screen.X, coord_screen.Y))
win32.FillConsoleOutputAttribute(handle, self.get_attrs(), cells_to_erase, from_coord)
if mode == 2:
# put the cursor where needed
win32.SetConsoleCursorPosition(handle, (1, 1))
def erase_line(self, mode=0, on_stderr=False):
# 0 should clear from the cursor to the end of the line.
# 1 should clear from the cursor to the beginning of the line.
# 2 should clear the entire line.
handle = win32.STDOUT
if on_stderr:
handle = win32.STDERR
csbi = win32.GetConsoleScreenBufferInfo(handle)
if mode == 0:
from_coord = csbi.dwCursorPosition
cells_to_erase = csbi.dwSize.X - csbi.dwCursorPosition.X
if mode == 1:
from_coord = win32.COORD(0, csbi.dwCursorPosition.Y)
cells_to_erase = csbi.dwCursorPosition.X
elif mode == 2:
from_coord = win32.COORD(0, csbi.dwCursorPosition.Y)
cells_to_erase = csbi.dwSize.X
# fill the entire screen with blanks
win32.FillConsoleOutputCharacter(handle, ' ', cells_to_erase, from_coord)
# now set the buffer's attributes accordingly
win32.FillConsoleOutputAttribute(handle, self.get_attrs(), cells_to_erase, from_coord)
def set_title(self, title):
win32.SetConsoleTitle(title)