Add the regex_stdlib regular expression engine.

Unlike other regular expression engines this is available on all
systems.

1 files changed, 23 insertions, 1 deletions

diff --git a/data/modules.example.conf b/data/modules.example.conf
index 6630bc750..fdf5b57be 100644
--- a/data/modules.example.conf
+++ b/data/modules.example.conf
@@ -412,11 +412,33 @@ module { name = "help" }
  * m_regex_posix [EXTRA]
  *
  * Provides the regex engine regex/posix, which uses the POSIX compliant regular expressions.
- * This is likely the only regex module you will not need extra libraries for.
  */
 #module { name = "m_regex_posix" }
 
 /*
+ * m_regex_stdlib
+ *
+ * Provides the regex engine regex/stdlib, which uses the regular expression library that is part of
+ * the C++ standard library.
+*/
+module
+{
+	name = "m_regex_stdlib"
+
+	/*
+	 * The syntax scheme to use. Can be set to awk to use the regular expression grammar used by the
+	 * awk utility in POSIX, basic to use the basic POSIX regular expression grammar, ecmascript to
+	 * use the modified ECMAScript regular expression grammar, egrep to use the regular expression
+	 * grammar used by the grep utility with the -E option in POSIX, extended to use the extended
+	 * POSIX regular expression grammar, or grep to use the regular expression grammar used by the
+	 * grep utility in POSIX.
+	 *
+	 * See https://en.cppreference.com/w/cpp/regex/syntax_option_type for more information.
+	 */
+	syntax = "ecmascript"
+}
+
+/*
  * m_regex_tre [EXTRA]
  *
  * Provides the regex engine regex/tre, which uses the TRE regex library.