Update HTML docs and ChangeLog for recent patches

Author: PhilipHazel

ChangeLog

@@ -132,6 +132,8 @@ includes underscore.
 matches the "fullwidth" versions of the hex digits. Just like it is done for
 [:digit:], PCRE2_EXTRA_ASCII_DIGIT can be used to keep this class ASCII only.
 
+34. GitHub PR305 fixes a potential integer overflow in pcre2_dfa_match().
+
 
 Version 10.42 11-December-2022
 ------------------------------

doc/html/pcre2_set_compile_extra_options.html

@@ -36,7 +36,7 @@ <h1>pcre2_set_compile_extra_options man page</h1>
   PCRE2_EXTRA_ASCII_BSD                \d remains ASCII in UCP mode
   PCRE2_EXTRA_ASCII_BSS                \s remains ASCII in UCP mode
   PCRE2_EXTRA_ASCII_BSW                \w remains ASCII in UCP mode
-  PCRE2_EXTRA_ASCII_DIGIT              [:digit:] POSIX class remains ASCII in UCP mode
+  PCRE2_EXTRA_ASCII_DIGIT              [:digit:] and [:xdigit:] POSIX classes remain ASCII in UCP mode
   PCRE2_EXTRA_ASCII_POSIX              POSIX classes remain ASCII in UCP mode
   PCRE2_EXTRA_BAD_ESCAPE_IS_LITERAL    Treat all invalid escapes as a literal following character
   PCRE2_EXTRA_CASELESS_RESTRICT        Disable mixed ASCII/non-ASCII case folding

doc/html/pcre2api.html

@@ -2013,8 +2013,8 @@ <h1>pcre2api man page</h1>
 <pre>
   PCRE2_EXTRA_ASCII_DIGIT
 </pre>
-This option forces the POSIX character class [:digit:] to match only ASCII
-digits, even when PCRE2_UCP is set.
+This option forces the POSIX character classes [:digit:] and [:xdigit:] to
+match only ASCII digits, even when PCRE2_UCP is set.
 <pre>
   PCRE2_EXTRA_ASCII_POSIX
 </pre>

doc/html/pcre2pattern.html

@@ -1580,15 +1580,17 @@ <h1>pcre2pattern man page</h1>
 </P>
 <P>
 [:xdigit:]
-In addition to the ASCII hexadecimal digits, this also matches the "fullwidth" 
-versions of those characters, whose Unicode code points start at U+FF10. This 
-is a change that was made in PCRE release 10.43 for Perl compatibility.
+In addition to the ASCII hexadecimal digits, this also matches the "fullwidth"
+versions of those characters, whose Unicode code points start at U+FF10. The
+effect of PCRE2_UCP can be negated by setting the PCRE2_EXTRA_ASCII_DIGIT
+option, just like it does for [:digit]. This is a change that was made in
+PCRE release 10.43 for Perl compatibility.
 </P>
 <P>
 The other POSIX classes are unchanged by PCRE2_UCP, and match only characters
-with code points less than 256. The effect of PCRE2_UCP on POSIX classes can be
-negated by setting the PCRE2_EXTRA_ASCII_POSIX option, either when calling
-<b>pcre2_compile()</b> or internally within the pattern.
+with code points less than 256. The effect of PCRE2_UCP on all POSIX classes
+can be negated by setting the PCRE2_EXTRA_ASCII_POSIX option, either when
+calling <b>pcre2_compile()</b> or internally within the pattern.
 </P>
 <br><a name="SEC11" href="#TOC1">COMPATIBILITY FEATURE FOR WORD BOUNDARIES</a><br>
 <P>