# HG changeset patch
# User Nicholas R. Jankowski <jankowski.nicholas@gmail.com>
# Date 1709008233 18000
# Node ID 6c44d6d505f5c028b4c95ac498421da9e2d27627
# Parent  f1cb625c8eb5c040a59aa32627a538ae4c8b13ce# Parent  6ed312edd0d49b62c782ad2d103ae4559a6a8303
maint: merge stable to default.

diff -r f1cb625c8eb5 -r 6c44d6d505f5 libinterp/corefcn/regexp.cc
--- a/libinterp/corefcn/regexp.cc	Sun Feb 25 21:20:56 2024 -0800
+++ b/libinterp/corefcn/regexp.cc	Mon Feb 26 23:30:33 2024 -0500
@@ -879,6 +879,13 @@
 searches that reduce the number of matches (e.g., by creatively using set
 complement), and then further processing the return variables (now reduced in
 size) with successive @code{regexp} searches.
+
+Octave's @code{regexp} implementaion is based on the Perl Compatible Regular 
+Expressions library (@url{https://www.pcre.org/}).  For a more comprehensive list
+of rexexp operator syntax see the 
+@url{https://www.pcre.org/current/doc/html/pcre2syntax.html,,
+"PCRE Syntax quick-reference summary"}.
+
 @seealso{regexpi, strfind, regexprep}
 @end deftypefn */)
 {