35 lines
1.3 KiB
Python
35 lines
1.3 KiB
Python
import os
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def quote(arg) -> str:
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if os.name == 'nt':
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# If the command contains comma, semicolon, or equals, only the left
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# half is considered the command and the rest is considered the first
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# argument. If these characters are in other arguments they are
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# sometimes parsed as separate by builtin commands like del, but not
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# separate for external applications.
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# Ampersand, pipe, and caret are process flow and special escape.
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# Quotes inside quotes must be doubled up.
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badchars = [',', ';', '=', '&', '|', '^', '"']
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if arg == '' or any(c.isspace() for c in arg) or any(c in arg for c in badchars):
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arg = arg.replace('"', '""')
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arg = f'"{arg}"'
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return arg
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else:
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# Semicolon is command delimiter.
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# Equals assigns shell variables.
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# Quotes inside quotes must be escaped with backslash.
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badchars = [' ', ';', '=', '&', '|']
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if arg == '' or any(c.isspace() for c in arg) or any(c in arg for c in badchars):
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arg = arg.replace("'", "\\'")
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arg = f"'{arg}'"
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return arg
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def format_command(command) -> str:
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cmd = [quote(x) for x in command]
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cmd = ' '.join(cmd)
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cmd = cmd.strip()
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return cmd
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def print_command(command, prefix=''):
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print(prefix + format_command(command))
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