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Documentation update.

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Philip.Hazel 2018-06-18 16:49:12 +00:00
parent e75410a5d8
commit 8af671a36d
2 changed files with 17 additions and 9 deletions
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doc/pcre2api.3
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@ -1,4 +1,4 @@
.TH PCRE2API 3 "27 April 2018" "PCRE2 10.32" .TH PCRE2API 3 "18 June 2018" "PCRE2 10.32"
.SH NAME .SH NAME
PCRE2 - Perl-compatible regular expressions (revised API) PCRE2 - Perl-compatible regular expressions (revised API)
.sp .sp
@ -2552,7 +2552,7 @@ performance reasons, you can set the PCRE2_NO_UTF_CHECK option when calling
calls to \fBpcre2_match()\fP if you are making repeated calls to find other calls to \fBpcre2_match()\fP if you are making repeated calls to find other
matches in the same subject string. matches in the same subject string.
.P .P
WARNING: When PCRE2_NO_UTF_CHECK is set, the effect of passing an invalid \fBWarning:\fP When PCRE2_NO_UTF_CHECK is set, the effect of passing an invalid
string as a subject, or an invalid value of \fIstartoffset\fP, is undefined. string as a subject, or an invalid value of \fIstartoffset\fP, is undefined.
Your program may crash or loop indefinitely. Your program may crash or loop indefinitely.
.sp .sp
@ -2769,6 +2769,14 @@ When it matches "bc", the returned name is A. The B mark is "seen" in the first
branch of the group, but it is not on the matching path. On the other hand, branch of the group, but it is not on the matching path. On the other hand,
when this pattern fails to match "bx", the returned name is B. when this pattern fails to match "bx", the returned name is B.
.P .P
\fBWarning:\fP By default, certain start-of-match optimizations are used to
give a fast "no match" result in some situations. For example, if the anchoring
is removed from the pattern above, there is an initial check for the presence
of "c" in the subject before running the matching engine. This check fails for
"bx", causing a match failure without seeing any marks. You can disable the
start-of-match optimizations by setting the PCRE2_NO_START_OPTIMIZE option for
\fBpcre2_compile()\fP or starting the pattern with (*NO_START_OPT).
.P
After a successful match, a partial match, or one of the invalid UTF errors After a successful match, a partial match, or one of the invalid UTF errors
(for example, PCRE2_ERROR_UTF8_ERR5), \fBpcre2_get_startchar()\fP can be (for example, PCRE2_ERROR_UTF8_ERR5), \fBpcre2_get_startchar()\fP can be
called. After a successful or partial match it returns the code unit offset of called. After a successful or partial match it returns the code unit offset of
@ -3613,6 +3621,6 @@ Cambridge, England.
.rs .rs
.sp .sp
.nf .nf
Last updated: 27 April 2018 Last updated: 18 June 2018
Copyright (c) 1997-2018 University of Cambridge. Copyright (c) 1997-2018 University of Cambridge.
.fi .fi