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itrace.py: fix invalid escape sequences #9

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itrace.py: fix invalid escape sequences #9

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mkannwischer
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When running itrace, I get various warning due to missing raw (r) markers in regex patterns.

/home/mjk/git/cryptoline/scripts/itrace.py:87: SyntaxWarning: invalid escape sequence '\('
  '\(''%([a-z0-9]+)'
/home/mjk/git/cryptoline/scripts/itrace.py:89: SyntaxWarning: invalid escape sequence '\)'
  '([1248]))?''\)'
/home/mjk/git/cryptoline/scripts/itrace.py:90: SyntaxWarning: invalid escape sequence '\s'
  '(?:\s*,\s*%([a-z0-9]+))?')
/home/mjk/git/cryptoline/scripts/itrace.py:131: SyntaxWarning: invalid escape sequence '\s'
  '(?:\s*,\s*(x[0-9]+|#-?(?:0x)?[0-9a-fA-F]+))?''\]'
/home/mjk/git/cryptoline/scripts/itrace.py:131: SyntaxWarning: invalid escape sequence '\]'
  '(?:\s*,\s*(x[0-9]+|#-?(?:0x)?[0-9a-fA-F]+))?''\]'
/home/mjk/git/cryptoline/scripts/itrace.py:132: SyntaxWarning: invalid escape sequence '\s'
  '(?:\s*,\s*#(-?(?:0x)?[0-9a-fA-F]+))?')
/home/mjk/git/cryptoline/scripts/itrace.py:174: SyntaxWarning: invalid escape sequence '\s'
  '(?:\s*,\s*([a-z0-9]+|#-?(?:0x)?[0-9a-fA-F]+)|\s*:\d+)?''\]'
/home/mjk/git/cryptoline/scripts/itrace.py:174: SyntaxWarning: invalid escape sequence '\]'
  '(?:\s*,\s*([a-z0-9]+|#-?(?:0x)?[0-9a-fA-F]+)|\s*:\d+)?''\]'
/home/mjk/git/cryptoline/scripts/itrace.py:175: SyntaxWarning: invalid escape sequence '\w'
  '|(?:ld|st)m\w*\.?\w*\s+(\w+)!?,)')
/home/mjk/git/cryptoline/scripts/itrace.py:384: SyntaxWarning: invalid escape sequence '\s'
  value = re.match('0x[0-9a-fA-F]+\s*<?.*>?\s*:\s+(0x[0-9a-fA-F]+)', value).group(1)
> /home/mjk/git/cryptoline/scripts/itrace.py(342)<module>()
-> def debug(msg):
$ python3 --version
Python 3.12.3

The behaviour got changed in Python 3.6 and 3.12: https://docs.python.org/3/reference/lexical_analysis.html#string-and-bytes-literals.

Changed in version 3.6: Unrecognized escape sequences produce a [DeprecationWarning](https://docs.python.org/3/library/exceptions.html#DeprecationWarning).

Changed in version 3.12: Unrecognized escape sequences produce a [SyntaxWarning](https://docs.python.org/3/library/exceptions.html#SyntaxWarning). In a future Python version they will be eventually a [SyntaxError](https://docs.python.org/3/library/exceptions.html#SyntaxError).

This will eventually be an error, so it is better to fix it now.

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@mkannwischer