Make expandRegex()'s comment more descriptive

Signed-off-by: Dmitry Rozhkov <dmitry.rozhkov@intel.com>
envoyproxy · Jan 11, 2021 · 7e4d7f2 · 7e4d7f2
1 parent d4d9553
commit 7e4d7f2
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/source/common/config/well_known_names.cc b/source/common/config/well_known_names.cc
@@ -7,7 +7,9 @@ namespace Config {
 
 namespace {
 
-// Replaces regex placeholders with actual regexes.
+// To allow for more readable regular expressions to be declared below, and to
+// reduce duplication, define a few common pattern substitutions for regex
+// segments.
 std::string expandRegex(const std::string& regex) {
   return absl::StrReplaceAll(
       regex, {// Regex to look for either IPv4 or IPv6 addresses.