From d2fa84ee69e3741412afae466bf65454c85bea2b Mon Sep 17 00:00:00 2001
From: Jim DeFabia <jamesdefabia@lexisnexis.com>
Date: Wed, 10 Apr 2024 10:16:30 -0400
Subject: [PATCH] HPCC-31369 Document move to PCRE2 regex library

Signed-off-by: Jim DeFabia <jamesdefabia@lexisnexis.com>
---
 .../ECLR_mods/BltInFunc-REGEXFIND.xml                    | 6 +++---
 .../ECLR_mods/BltInFunc-REGEXFINDSET.xml                 | 9 ++++++---
 .../ECLR_mods/BltInFunc-REGEXREPLACE.xml                 | 6 +++---
 3 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/docs/EN_US/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXFIND.xml b/docs/EN_US/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXFIND.xml
index aaa12e9d202..ed04a13c6db 100644
--- a/docs/EN_US/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXFIND.xml
+++ b/docs/EN_US/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXFIND.xml
@@ -67,9 +67,9 @@
   expression<indexterm>
       <primary>Perl regular expression</primary>
     </indexterm>. We use third-party libraries to support this, so for
-  non-unicode <emphasis>text</emphasis>, see boost docs at <ulink
-  url="http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/index.html">http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/index.html</ulink>.
-  Note that the version of Boost library may vary depending on your distro.
+  non-unicode <emphasis>text</emphasis>, see the Perl-compatible Regular
+  Expressions (PCRE2) documentation at <ulink
+  url="https://www.pcre.org/current/doc/html/pcre2pattern.html">https://www.pcre.org/current/doc/html/pcre2pattern.html</ulink>.
   For unicode <emphasis>text</emphasis>, see the ICU docs, the sections
   'Regular Expression Metacharacters' and 'Regular Expression Operators' at
   <emphasis
diff --git a/docs/EN_US/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXFINDSET.xml b/docs/EN_US/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXFINDSET.xml
index 193b7084759..f3d128303f8 100644
--- a/docs/EN_US/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXFINDSET.xml
+++ b/docs/EN_US/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXFINDSET.xml
@@ -55,9 +55,9 @@
   expression<indexterm>
       <primary>Perl regular expression</primary>
     </indexterm>. We use third-party libraries to support this, so for
-  non-unicode <emphasis>text</emphasis>, see boost docs at <ulink
-  url="http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/index.html">http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/index.html</ulink>.
-  Note that the version of Boost library may vary depending on your distro.
+  non-unicode <emphasis>text</emphasis>, see the Perl-compatible Regular
+  Expressions (PCRE2) documentation at <ulink
+  url="https://www.pcre.org/current/doc/html/pcre2pattern.html">https://www.pcre.org/current/doc/html/pcre2pattern.html</ulink>.
   For unicode <emphasis>text</emphasis>, see the ICU docs, the sections
   'Regular Expression Metacharacters' and 'Regular Expression Operators' at
   <emphasis
@@ -67,6 +67,9 @@
   role="underline">http://userguide.icu-project.org/strings/unicodeset</emphasis>.
   We use version 2.6 which should support all listed features.</para>
 
+  <para>REGEXFINDSET ignores capture groups. REGEXFINDSET repeatedly extracts
+  the text matching the entire <emphasis>regex</emphasis> pattern.</para>
+
   <para>Example:</para>
 
   <programlisting lang="ECL" role="runnable">sampleStr := 
diff --git a/docs/EN_US/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXREPLACE.xml b/docs/EN_US/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXREPLACE.xml
index 85e22e89490..638d7e6ddb8 100644
--- a/docs/EN_US/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXREPLACE.xml
+++ b/docs/EN_US/ECLLanguageReference/ECLR_mods/BltInFunc-REGEXREPLACE.xml
@@ -65,9 +65,9 @@
   expression<indexterm>
       <primary>Perl regular expression</primary>
     </indexterm>. We use third-party libraries to support this, so for
-  non-unicode <emphasis>text</emphasis>, see boost docs at <ulink
-  url="http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/index.html">http://www.boost.org/doc/libs/1_58_0/libs/regex/doc/html/index.html</ulink>.
-  Note that the version of Boost library may vary depending on your distro.
+  non-unicode <emphasis>text</emphasis>, see the Perl-compatible Regular
+  Expressions (PCRE2) documentation at <ulink
+  url="https://www.pcre.org/current/doc/html/pcre2pattern.html">https://www.pcre.org/current/doc/html/pcre2pattern.html</ulink>.
   For unicode <emphasis>text</emphasis>, see the ICU docs, the sections
   'Regular Expression Metacharacters' and 'Regular Expression Operators' at
   <emphasis