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59 lines
2.3 KiB
59 lines
2.3 KiB
#!/usr/bin/env python3 |
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# MIT License |
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# |
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# Copyright (c) 2022 Eugenio Parodi <ceccopierangiolieugenio AT googlemail DOT com> |
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# |
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# Permission is hereby granted, free of charge, to any person obtaining a copy |
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# of this software and associated documentation files (the "Software"), to deal |
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# in the Software without restriction, including without limitation the rights |
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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# copies of the Software, and to permit persons to whom the Software is |
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# furnished to do so, subject to the following conditions: |
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# |
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# The above copyright notice and this permission notice shall be included in all |
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# copies or substantial portions of the Software. |
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# |
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
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# SOFTWARE. |
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import sys, os, select |
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try: import fcntl, termios, tty |
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except Exception as e: |
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print(f'ERROR: {e}') |
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exit(1) |
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class ReadInput(): |
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__slots__ = ('_readPipe') |
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def __init__(self): |
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self._readPipe = os.pipe() |
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def close(self): |
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os.write(self._readPipe[1], b'quit') |
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def read(self): |
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_fn = sys.stdin.fileno() |
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_attr = termios.tcgetattr(_fn) |
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tty.setcbreak(_fn) |
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rlist, _, _ = select.select( [sys.stdin, self._readPipe[0]], [], [] ) |
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if self._readPipe[0] in rlist: |
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return None |
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if (stdinRead := sys.stdin.read(1)) == "\033": # Check if the stream start with an escape sequence |
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_fl = fcntl.fcntl(_fn, fcntl.F_GETFL) |
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fcntl.fcntl(_fn, fcntl.F_SETFL, _fl | os.O_NONBLOCK) # Set the input as NONBLOCK to read the full sequence |
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stdinRead += sys.stdin.read(20) # Check if the stream start with an escape sequence |
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if stdinRead.startswith("\033[<"): # Clear the buffer if this is a mouse code |
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sys.stdin.read(0x40) |
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fcntl.fcntl(_fn, fcntl.F_SETFL, _fl) |
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termios.tcsetattr(_fn, termios.TCSANOW, _attr) |
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return stdinRead
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