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Issue #13748: Raw bytes literals can now be written with the rb prefix as well as br.

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Antoine Pitrou 2012-01-12 22:46:19 +01:00
parent b63a450cc4
commit 3a5d4cb940
6 changed files with 54 additions and 19 deletions
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6
Doc/reference/lexical_analysis.rst
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@ -412,7 +412,7 @@ String literals are described by the following lexical definitions:
.. productionlist::
bytesliteral: `bytesprefix`(`shortbytes` | `longbytes`)
bytesprefix: "b" | "B" | "br" | "Br" | "bR" | "BR"
bytesprefix: "b" | "B" | "br" | "Br" | "bR" | "BR" | "rb" | "rB" | "Rb" | "RB"
shortbytes: "'" `shortbytesitem`* "'" | '"' `shortbytesitem`* '"'
longbytes: "'''" `longbytesitem`* "'''" | '"""' `longbytesitem`* '"""'
shortbytesitem: `shortbyteschar` | `bytesescapeseq`
@ -446,6 +446,10 @@ or ``'R'``; such strings are called :dfn:`raw strings` and treat backslashes as
literal characters. As a result, in string literals, ``'\U'`` and ``'\u'``
escapes in raw strings are not treated specially.
.. versionadded:: 3.3
The ``'rb'`` prefix of raw bytes literals has been added as a synonym
of ``'br'``.
In triple-quoted strings, unescaped newlines and quotes are allowed (and are
retained), except that three unescaped quotes in a row terminate the string. (A
"quote" is the character used to open the string, i.e. either ``'`` or ``"``.)