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76 lines
2.1 KiB
Python
76 lines
2.1 KiB
Python
# Copyright 2000-2004 Michael Hudson-Doyle <micahel@gmail.com>
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#
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# All Rights Reserved
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#
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#
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# Permission to use, copy, modify, and distribute this software and
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# its documentation for any purpose is hereby granted without fee,
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# provided that the above copyright notice appear in all copies and
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# that both that copyright notice and this permission notice appear in
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# supporting documentation.
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#
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# THE AUTHOR MICHAEL HUDSON DISCLAIMS ALL WARRANTIES WITH REGARD TO
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# THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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# AND FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL,
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# INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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# RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
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# CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
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# CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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import termios
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class TermState:
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def __init__(self, tuples):
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(
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self.iflag,
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self.oflag,
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self.cflag,
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self.lflag,
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self.ispeed,
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self.ospeed,
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self.cc,
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) = tuples
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def as_list(self):
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return [
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self.iflag,
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self.oflag,
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self.cflag,
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self.lflag,
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self.ispeed,
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self.ospeed,
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# Always return a copy of the control characters list to ensure
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# there are not any additional references to self.cc
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self.cc[:],
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]
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def copy(self):
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return self.__class__(self.as_list())
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def tcgetattr(fd):
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return TermState(termios.tcgetattr(fd))
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def tcsetattr(fd, when, attrs):
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termios.tcsetattr(fd, when, attrs.as_list())
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class Term(TermState):
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TS__init__ = TermState.__init__
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def __init__(self, fd=0):
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self.TS__init__(termios.tcgetattr(fd))
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self.fd = fd
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self.stack = []
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def save(self):
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self.stack.append(self.as_list())
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def set(self, when=termios.TCSANOW):
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termios.tcsetattr(self.fd, when, self.as_list())
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def restore(self):
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self.TS__init__(self.stack.pop())
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self.set()
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