From 369dbe312a93e4adb6a60799c95c0d3a56ac089e Mon Sep 17 00:00:00 2001
From: Mateen Ulhaq <mulhaq2005@gmail.com>
Date: Sun, 16 Mar 2025 14:33:53 -0700
Subject: [PATCH] fix: no underscores after numbers when converting to snake
 case

---
 src/betterproto/casing.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/betterproto/casing.py b/src/betterproto/casing.py
index f7d0832b8..f281cc819 100644
--- a/src/betterproto/casing.py
+++ b/src/betterproto/casing.py
@@ -8,11 +8,11 @@
 
 # Optionally capitalized word.
 # language=PythonRegExp
-WORD = "[A-Z]*[a-z]*[0-9]*"
+WORD = "[A-Z]*([a-z]|[0-9][A-Z]*)*"
 
 # Uppercase word, not followed by lowercase letters.
 # language=PythonRegExp
-WORD_UPPER = "[A-Z]+(?![a-z])[0-9]*"
+WORD_UPPER = "([A-Z]+(?![a-z])[0-9]*)+"
 
 
 def safe_snake_case(value: str) -> str: