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#14155: add a note about \b.

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Ezio Melotti 2012-04-29 04:46:34 +03:00
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Doc/library/re.rst
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@ -398,6 +398,9 @@ accepted by the regular expression parser::
\r \t \v \x \r \t \v \x
\\ \\
(Note that ``\b`` is used to represent word boundaries, and means "backspace"
only inside character classes.)
Octal escapes are included in a limited form: If the first digit is a 0, or if Octal escapes are included in a limited form: If the first digit is a 0, or if
there are three octal digits, it is considered an octal escape. Otherwise, it is there are three octal digits, it is considered an octal escape. Otherwise, it is
a group reference. As for string literals, octal escapes are always at most a group reference. As for string literals, octal escapes are always at most