From 697a0db3af9543d8498aef8eee5e9ac54e39ca18 Mon Sep 17 00:00:00 2001
From: Tristan Ancelet <tristan.ancelet@acumera.com>
Date: Wed, 12 Aug 2026 16:34:16 -0500
Subject: [PATCH] Added debug message to print out a missing match + the format
 being matched

---
 src/cligen/flag.cr | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/cligen/flag.cr b/src/cligen/flag.cr
index c666f05..cd3a892 100644
--- a/src/cligen/flag.cr
+++ b/src/cligen/flag.cr
@@ -79,7 +79,10 @@ module CliGen
         argv.each do |arg|
           break if arg.flag?
           unless @format.nil?
-            break unless arg.value =~ @format
+            unless arg.value =~ @format
+              puts "DEBUG : Flag({{T}}, long: #{@long_key}) : #{arg.value} was not found to be matching the defined filter #{@format}. So breaking from parse loop" if ENV["DEBUG"]
+              break
+            end
           end
           {% if elem == Int32 %}
             abort "ERROR : Flag({{T}}) : Provided arguemnt(#{arg.value}) was not an integer" unless arg.int?