Source and document file tidies for 10.20-RC1.

git-svn-id: svn://vcs.exim.org/pcre2/code/trunk@288 6239d852-aaf2-0410-a92c-79f79f948069

1 files changed, 16 insertions, 4 deletions

diff --git a/doc/html/pcre2.html b/doc/html/pcre2.html
index 2c2b106..e94b355 100644
--- a/doc/html/pcre2.html
+++ b/doc/html/pcre2.html
@@ -108,8 +108,14 @@ lose performance.
 <P>
 One way of guarding against this possibility is to use the
 <b>pcre2_pattern_info()</b> function to check the compiled pattern's options for
-UTF. Alternatively, you can set the PCRE2_NEVER_UTF option at compile time.
-This causes an compile time error if a pattern contains a UTF-setting sequence.
+PCRE2_UTF. Alternatively, you can set the PCRE2_NEVER_UTF option when calling
+<b>pcre2_compile()</b>. This causes an compile time error if a pattern contains
+a UTF-setting sequence.
+</P>
+<P>
+The use of Unicode properties for character types such as \d can also be
+enabled from within the pattern, by specifying "(*UCP)". This feature can be
+disallowed by setting the PCRE2_NEVER_UCP option.
 </P>
 <P>
 If your application is one that supports UTF, be aware that validity checking
@@ -118,6 +124,12 @@ the PCRE2_NO_UTF_CHECK option for the second and subsequent matches to avoid
 running redundant checks.
 </P>
 <P>
+The use of the \C escape sequence in a UTF-8 or UTF-16 pattern can lead to
+problems, because it may leave the current matching point in the middle of a
+multi-code-unit character. The PCRE2_NEVER_BACKSLASH_C option can be used to
+lock out the use of \C, causing a compile-time error if it is encountered.
+</P>
+<P>
 Another way that performance can be hit is by running a pattern that has a very
 large search tree against a string that will never match. Nested unlimited
 repeats in a pattern are a common example. PCRE2 provides some protection
@@ -175,9 +187,9 @@ use my two initials, followed by the two digits 10, at the domain cam.ac.uk.
 </P>
 <br><a name="SEC5" href="#TOC1">REVISION</a><br>
 <P>
-Last updated: 18 November 2014
+Last updated: 13 April 2015
 <br>
-Copyright &copy; 1997-2014 University of Cambridge.
+Copyright &copy; 1997-2015 University of Cambridge.
 <br>
 <p>
 Return to the <a href="index.html">PCRE2 index page</a>.