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authoranimalize <animalize@users.noreply.github.com>2019-02-18 13:26:37 (GMT)
committerSerhiy Storchaka <storchaka@gmail.com>2019-02-18 13:26:37 (GMT)
commit4a7f44a2ed49ff1e87db062e7177a56c6e4bbdb0 (patch)
tree6daa91592d1d09f5b8ed34a1121e600a8bb03d74 /Doc
parent02c04f26dfa637db7091b7e16036a980bbf40893 (diff)
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bpo-34294: re module, fix wrong capturing groups in rare cases. (GH-11546)
Need to reset capturing groups between two SRE(match) callings in loops, this fixes wrong capturing groups in rare cases. Also add a missing index in re.rst.
Diffstat (limited to 'Doc')
-rw-r--r--Doc/library/re.rst2
1 files changed, 2 insertions, 0 deletions
diff --git a/Doc/library/re.rst b/Doc/library/re.rst
index ac6455a..b512830 100644
--- a/Doc/library/re.rst
+++ b/Doc/library/re.rst
@@ -371,6 +371,8 @@ The special characters are:
``(?#...)``
A comment; the contents of the parentheses are simply ignored.
+.. index:: single: (?=; in regular expressions
+
``(?=...)``
Matches if ``...`` matches next, but doesn't consume any of the string. This is
called a :dfn:`lookahead assertion`. For example, ``Isaac (?=Asimov)`` will match