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| author | Martin v. Löwis <martin@v.loewis.de> | 2002-04-11 12:24:12 (GMT) |
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| committer | Martin v. Löwis <martin@v.loewis.de> | 2002-04-11 12:24:12 (GMT) |
| commit | 81bdc93d2fec9aa95f10e04dd019a8c207faeb52 (patch) | |
| tree | f229e1494d7d47f0cb3c4f309c9ebd2eeff7a3ca /Doc/lib/libre.tex | |
| parent | 52aefc8a7b9e9ebda6c1b98a831a273e0b07bf96 (diff) | |
| download | cpython-81bdc93d2fec9aa95f10e04dd019a8c207faeb52.zip cpython-81bdc93d2fec9aa95f10e04dd019a8c207faeb52.tar.gz cpython-81bdc93d2fec9aa95f10e04dd019a8c207faeb52.tar.bz2 | |
Explain octal escapes. Fixes #542226.
Diffstat (limited to 'Doc/lib/libre.tex')
| -rw-r--r-- | Doc/lib/libre.tex | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/Doc/lib/libre.tex b/Doc/lib/libre.tex index 61dd028..5ab8d84 100644 --- a/Doc/lib/libre.tex +++ b/Doc/lib/libre.tex @@ -373,11 +373,9 @@ also accepted by the regular expression parser: \\ \end{verbatim} -Note that octal escapes are not included. While the parser can -attempt to determine whether a character is being specified by it's -ordinal value expressed in octal, doing so yields an expression which -is relatively difficult to maintain, as the same syntax is used to -refer to numbered groups. +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 a group reference. \subsection{Matching vs. Searching \label{matching-searching}} |