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Move common libs to libs/common
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Labrys of Knossos
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commit
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1612 changed files with 962 additions and 10 deletions
257
libs/common/colorama/ansitowin32.py
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257
libs/common/colorama/ansitowin32.py
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# Copyright Jonathan Hartley 2013. BSD 3-Clause license, see LICENSE file.
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import re
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import sys
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import os
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from .ansi import AnsiFore, AnsiBack, AnsiStyle, Style
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from .winterm import WinTerm, WinColor, WinStyle
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from .win32 import windll, winapi_test
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winterm = None
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if windll is not None:
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winterm = WinTerm()
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class StreamWrapper(object):
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'''
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Wraps a stream (such as stdout), acting as a transparent proxy for all
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attribute access apart from method 'write()', which is delegated to our
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Converter instance.
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'''
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def __init__(self, wrapped, converter):
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# double-underscore everything to prevent clashes with names of
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# attributes on the wrapped stream object.
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self.__wrapped = wrapped
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self.__convertor = converter
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def __getattr__(self, name):
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return getattr(self.__wrapped, name)
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def __enter__(self, *args, **kwargs):
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# special method lookup bypasses __getattr__/__getattribute__, see
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# https://stackoverflow.com/questions/12632894/why-doesnt-getattr-work-with-exit
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# thus, contextlib magic methods are not proxied via __getattr__
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return self.__wrapped.__enter__(*args, **kwargs)
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def __exit__(self, *args, **kwargs):
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return self.__wrapped.__exit__(*args, **kwargs)
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def write(self, text):
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self.__convertor.write(text)
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def isatty(self):
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stream = self.__wrapped
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if 'PYCHARM_HOSTED' in os.environ:
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if stream is not None and (stream is sys.__stdout__ or stream is sys.__stderr__):
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return True
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try:
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stream_isatty = stream.isatty
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except AttributeError:
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return False
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else:
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return stream_isatty()
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@property
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def closed(self):
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stream = self.__wrapped
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try:
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return stream.closed
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except AttributeError:
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return True
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class AnsiToWin32(object):
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'''
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Implements a 'write()' method which, on Windows, will strip ANSI character
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sequences from the text, and if outputting to a tty, will convert them into
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win32 function calls.
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'''
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ANSI_CSI_RE = re.compile('\001?\033\\[((?:\\d|;)*)([a-zA-Z])\002?') # Control Sequence Introducer
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ANSI_OSC_RE = re.compile('\001?\033\\]((?:.|;)*?)(\x07)\002?') # Operating System Command
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def __init__(self, wrapped, convert=None, strip=None, autoreset=False):
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# The wrapped stream (normally sys.stdout or sys.stderr)
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self.wrapped = wrapped
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# should we reset colors to defaults after every .write()
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self.autoreset = autoreset
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# create the proxy wrapping our output stream
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self.stream = StreamWrapper(wrapped, self)
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on_windows = os.name == 'nt'
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# We test if the WinAPI works, because even if we are on Windows
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# we may be using a terminal that doesn't support the WinAPI
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# (e.g. Cygwin Terminal). In this case it's up to the terminal
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# to support the ANSI codes.
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conversion_supported = on_windows and winapi_test()
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# should we strip ANSI sequences from our output?
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if strip is None:
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strip = conversion_supported or (not self.stream.closed and not self.stream.isatty())
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self.strip = strip
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# should we should convert ANSI sequences into win32 calls?
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if convert is None:
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convert = conversion_supported and not self.stream.closed and self.stream.isatty()
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self.convert = convert
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# dict of ansi codes to win32 functions and parameters
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self.win32_calls = self.get_win32_calls()
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# are we wrapping stderr?
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self.on_stderr = self.wrapped is sys.stderr
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def should_wrap(self):
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'''
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True if this class is actually needed. If false, then the output
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stream will not be affected, nor will win32 calls be issued, so
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wrapping stdout is not actually required. This will generally be
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False on non-Windows platforms, unless optional functionality like
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autoreset has been requested using kwargs to init()
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'''
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return self.convert or self.strip or self.autoreset
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def get_win32_calls(self):
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if self.convert and winterm:
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return {
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AnsiStyle.RESET_ALL: (winterm.reset_all, ),
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AnsiStyle.BRIGHT: (winterm.style, WinStyle.BRIGHT),
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AnsiStyle.DIM: (winterm.style, WinStyle.NORMAL),
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AnsiStyle.NORMAL: (winterm.style, WinStyle.NORMAL),
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AnsiFore.BLACK: (winterm.fore, WinColor.BLACK),
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AnsiFore.RED: (winterm.fore, WinColor.RED),
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AnsiFore.GREEN: (winterm.fore, WinColor.GREEN),
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AnsiFore.YELLOW: (winterm.fore, WinColor.YELLOW),
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AnsiFore.BLUE: (winterm.fore, WinColor.BLUE),
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AnsiFore.MAGENTA: (winterm.fore, WinColor.MAGENTA),
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AnsiFore.CYAN: (winterm.fore, WinColor.CYAN),
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AnsiFore.WHITE: (winterm.fore, WinColor.GREY),
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AnsiFore.RESET: (winterm.fore, ),
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AnsiFore.LIGHTBLACK_EX: (winterm.fore, WinColor.BLACK, True),
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AnsiFore.LIGHTRED_EX: (winterm.fore, WinColor.RED, True),
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AnsiFore.LIGHTGREEN_EX: (winterm.fore, WinColor.GREEN, True),
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AnsiFore.LIGHTYELLOW_EX: (winterm.fore, WinColor.YELLOW, True),
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AnsiFore.LIGHTBLUE_EX: (winterm.fore, WinColor.BLUE, True),
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AnsiFore.LIGHTMAGENTA_EX: (winterm.fore, WinColor.MAGENTA, True),
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AnsiFore.LIGHTCYAN_EX: (winterm.fore, WinColor.CYAN, True),
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AnsiFore.LIGHTWHITE_EX: (winterm.fore, WinColor.GREY, True),
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AnsiBack.BLACK: (winterm.back, WinColor.BLACK),
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AnsiBack.RED: (winterm.back, WinColor.RED),
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AnsiBack.GREEN: (winterm.back, WinColor.GREEN),
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AnsiBack.YELLOW: (winterm.back, WinColor.YELLOW),
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AnsiBack.BLUE: (winterm.back, WinColor.BLUE),
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AnsiBack.MAGENTA: (winterm.back, WinColor.MAGENTA),
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AnsiBack.CYAN: (winterm.back, WinColor.CYAN),
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AnsiBack.WHITE: (winterm.back, WinColor.GREY),
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AnsiBack.RESET: (winterm.back, ),
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AnsiBack.LIGHTBLACK_EX: (winterm.back, WinColor.BLACK, True),
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AnsiBack.LIGHTRED_EX: (winterm.back, WinColor.RED, True),
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AnsiBack.LIGHTGREEN_EX: (winterm.back, WinColor.GREEN, True),
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AnsiBack.LIGHTYELLOW_EX: (winterm.back, WinColor.YELLOW, True),
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AnsiBack.LIGHTBLUE_EX: (winterm.back, WinColor.BLUE, True),
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AnsiBack.LIGHTMAGENTA_EX: (winterm.back, WinColor.MAGENTA, True),
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AnsiBack.LIGHTCYAN_EX: (winterm.back, WinColor.CYAN, True),
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AnsiBack.LIGHTWHITE_EX: (winterm.back, WinColor.GREY, True),
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}
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return dict()
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def write(self, text):
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if self.strip or self.convert:
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self.write_and_convert(text)
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else:
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self.wrapped.write(text)
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self.wrapped.flush()
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if self.autoreset:
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self.reset_all()
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def reset_all(self):
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if self.convert:
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self.call_win32('m', (0,))
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elif not self.strip and not self.stream.closed:
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self.wrapped.write(Style.RESET_ALL)
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def write_and_convert(self, text):
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'''
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Write the given text to our wrapped stream, stripping any ANSI
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sequences from the text, and optionally converting them into win32
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calls.
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'''
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cursor = 0
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text = self.convert_osc(text)
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for match in self.ANSI_CSI_RE.finditer(text):
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start, end = match.span()
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self.write_plain_text(text, cursor, start)
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self.convert_ansi(*match.groups())
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cursor = end
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self.write_plain_text(text, cursor, len(text))
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def write_plain_text(self, text, start, end):
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if start < end:
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self.wrapped.write(text[start:end])
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self.wrapped.flush()
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def convert_ansi(self, paramstring, command):
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if self.convert:
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params = self.extract_params(command, paramstring)
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self.call_win32(command, params)
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def extract_params(self, command, paramstring):
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if command in 'Hf':
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params = tuple(int(p) if len(p) != 0 else 1 for p in paramstring.split(';'))
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while len(params) < 2:
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# defaults:
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params = params + (1,)
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else:
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params = tuple(int(p) for p in paramstring.split(';') if len(p) != 0)
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if len(params) == 0:
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# defaults:
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if command in 'JKm':
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params = (0,)
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elif command in 'ABCD':
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params = (1,)
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return params
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def call_win32(self, command, params):
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if command == 'm':
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for param in params:
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if param in self.win32_calls:
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func_args = self.win32_calls[param]
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func = func_args[0]
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args = func_args[1:]
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kwargs = dict(on_stderr=self.on_stderr)
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func(*args, **kwargs)
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elif command in 'J':
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winterm.erase_screen(params[0], on_stderr=self.on_stderr)
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elif command in 'K':
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winterm.erase_line(params[0], on_stderr=self.on_stderr)
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elif command in 'Hf': # cursor position - absolute
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winterm.set_cursor_position(params, on_stderr=self.on_stderr)
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elif command in 'ABCD': # cursor position - relative
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n = params[0]
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# A - up, B - down, C - forward, D - back
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x, y = {'A': (0, -n), 'B': (0, n), 'C': (n, 0), 'D': (-n, 0)}[command]
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winterm.cursor_adjust(x, y, on_stderr=self.on_stderr)
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def convert_osc(self, text):
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for match in self.ANSI_OSC_RE.finditer(text):
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start, end = match.span()
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text = text[:start] + text[end:]
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paramstring, command = match.groups()
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if command in '\x07': # \x07 = BEL
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params = paramstring.split(";")
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# 0 - change title and icon (we will only change title)
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# 1 - change icon (we don't support this)
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# 2 - change title
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if params[0] in '02':
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winterm.set_title(params[1])
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return text
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