From 862a7407234cb70245f8ab52d32ce9823b067e93 Mon Sep 17 00:00:00 2001
From: Ed Page <eopage@gmail.com>
Date: Wed, 29 May 2024 15:05:54 -0500
Subject: [PATCH] fix(filter): Allow underscore in placeholders

---
 crates/snapbox/src/filter/redactions.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/crates/snapbox/src/filter/redactions.rs b/crates/snapbox/src/filter/redactions.rs
index 03f35793..e0f9227b 100644
--- a/crates/snapbox/src/filter/redactions.rs
+++ b/crates/snapbox/src/filter/redactions.rs
@@ -331,7 +331,7 @@ fn validate_placeholder(placeholder: &'static str) -> crate::assert::Result<&'st
     }
 
     if placeholder[1..(placeholder.len() - 1)]
-        .find(|c: char| !c.is_ascii_uppercase())
+        .find(|c: char| !c.is_ascii_uppercase() && c != '_')
         .is_some()
     {
         return Err(format!("Key `{}` can only be A-Z but ", placeholder).into());
@@ -350,6 +350,7 @@ mod test {
             ("[HELLO", false),
             ("HELLO]", false),
             ("[HELLO]", true),
+            ("[HELLO_WORLD]", true),
             ("[hello]", false),
             ("[HE  O]", false),
         ];