From 28214ad770f6690b115ba8609deec7f0c360b364 Mon Sep 17 00:00:00 2001
From: Viktor Lofgren <vlofgren@marginalia.nu>
Date: Mon, 30 Jan 2023 09:37:15 +0100
Subject: [PATCH] Remove unnecessary toLowerCase in isStopWord

---
 .../marginalia/util/language/WordPatterns.java | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/marginalia_nu/src/main/java/nu/marginalia/util/language/WordPatterns.java b/marginalia_nu/src/main/java/nu/marginalia/util/language/WordPatterns.java
index 4766706e..c2fc0045 100644
--- a/marginalia_nu/src/main/java/nu/marginalia/util/language/WordPatterns.java
+++ b/marginalia_nu/src/main/java/nu/marginalia/util/language/WordPatterns.java
@@ -1,5 +1,7 @@
 package nu.marginalia.util.language;
 
+import org.apache.commons.lang3.StringUtils;
+
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
@@ -123,14 +125,24 @@ public class WordPatterns {
         if (!filter(s)) {
             return true;
         }
-        if (isTopWord(s)) {
+
+        String sLc;
+        if (StringUtils.isAllLowerCase(s)) {
+            sLc = s;
+        }
+        else {
+            sLc = s.toLowerCase();
+        }
+
+        if (isTopWord(sLc)) {
             return true;
         }
+
         return false;
     }
 
-    public static boolean isTopWord(String s) {
-        return topWords.contains(s.toLowerCase());
+    public static boolean isTopWord(String strLowerCase) {
+        return topWords.contains(strLowerCase);
     }
 
 }