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Documentation update.

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Philip.Hazel 2018-06-30 15:56:26 +00:00
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doc/pcre2pattern.3
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@ -1,4 +1,4 @@
.TH PCRE2PATTERN 3 "28 June 2018" "PCRE2 10.32" .TH PCRE2PATTERN 3 "30 June 2018" "PCRE2 10.32"
.SH NAME .SH NAME
PCRE2 - Perl-compatible regular expressions (revised API) PCRE2 - Perl-compatible regular expressions (revised API)
.SH "PCRE2 REGULAR EXPRESSION DETAILS" .SH "PCRE2 REGULAR EXPRESSION DETAILS"
@ -1072,9 +1072,9 @@ sequences but the characters that they represent.)
.SS "Resetting the match start" .SS "Resetting the match start"
.rs .rs
.sp .sp
The escape sequence \eK causes any previously matched characters not to be In normal use, the escape sequence \eK causes any previously matched characters
included in the final matched sequence that is returned. For example, the not to be included in the final matched sequence that is returned. For example,
pattern: the pattern:
.sp .sp
foo\eKbar foo\eKbar
.sp .sp
@ -1108,7 +1108,13 @@ PCRE2, \eK is acted upon when it occurs inside positive assertions, but is
ignored in negative assertions. Note that when a pattern such as (?=ab\eK) ignored in negative assertions. Note that when a pattern such as (?=ab\eK)
matches, the reported start of the match can be greater than the end of the matches, the reported start of the match can be greater than the end of the
match. Using \eK in a lookbehind assertion at the start of a pattern can also match. Using \eK in a lookbehind assertion at the start of a pattern can also
lead to odd effects. lead to odd effects. For example, consider this pattern:
.sp
(?<=\Kfoo)bar
.sp
If the subject is "foobar", a call to \fBpcre2_match()\fP with a starting
offset of 3 succeeds and reports the matching string as "foobar", that is, the
start of the reported match is earlier than where the match started.
. .
. .
.\" HTML <a name="smallassertions"></a> .\" HTML <a name="smallassertions"></a>
@ -3511,6 +3517,6 @@ Cambridge, England.
.rs .rs
.sp .sp
.nf .nf
Last updated: 28 June 2018 Last updated: 30 June 2018
Copyright (c) 1997-2018 University of Cambridge. Copyright (c) 1997-2018 University of Cambridge.
.fi .fi