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http://bugs.exim.org/show_bug.cgi?id=1315
Philip Hazel <ph10@???> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |INVALID
--- Comment #2 from Philip Hazel <ph10@???> 2012-11-07 17:32:44 ---
I have added the following sentence to the section entitled "Circumflex and
dollar" in the pcrepattern.3 man page:
The circumflex and dollar metacharacters are zero-width assertions. That is,
they test for a particular condition being true without consuming any
characters from the subject string.
I have also added a note in the paragraph describing dollar as a reminder that
it does not consume characters from the input.
The "Newline conventions" section describes different options for recognizing
newlines, which of course affects where $ is true. I have added a sentence to
that effect.
In the section on character classes it already says "A class that starts with a
circumflex is not an assertion; it still consumes a character from the subject
string, and therefore it fails if the current pointer is at the end of the
string."
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