From a0faac400d8d36029c9e1656653adaceca264fed Mon Sep 17 00:00:00 2001
From: Charles Gould <cgould@protonmail.com>
Date: Fri, 15 May 2020 17:54:39 -0500
Subject: [PATCH] Print warning on failure to match debug category

---
 src/flog.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/flog.cpp b/src/flog.cpp
index 5686fb487..1a64ef228 100644
--- a/src/flog.cpp
+++ b/src/flog.cpp
@@ -88,11 +88,16 @@ using namespace flog_details;
 /// For each category, if its name matches the wildcard, set its enabled to the given sense.
 static void apply_one_wildcard(const wcstring &wc_esc, bool sense) {
     wcstring wc = parse_util_unescape_wildcards(wc_esc);
+    bool match_found = false;
     for (category_t *cat : s_all_categories) {
         if (wildcard_match(cat->name, wc)) {
             cat->enabled = sense;
+            match_found = true;
         }
     }
+    if (!match_found) {
+        fprintf(stderr, "Failed to match debug category: %ls\n", wc_esc.c_str());
+    }
 }
 
 void activate_flog_categories_by_pattern(const wcstring &inwc) {