From 49bdf4b921a9b2069316b8c09955bec98d3401b0 Mon Sep 17 00:00:00 2001
From: JFronny <git@akbvopenfl1.hopto.org>
Date: Mon, 20 Nov 2023 14:39:21 +0100
Subject: [PATCH] fix: do not send trailing/preceding whitespace to translate
 service (based on impl in Translater)

---
 src/main/java/io/gitlab/jfronny/googlechat/GoogleChat.java | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/main/java/io/gitlab/jfronny/googlechat/GoogleChat.java b/src/main/java/io/gitlab/jfronny/googlechat/GoogleChat.java
index 68cf31e..f5f8ed8 100644
--- a/src/main/java/io/gitlab/jfronny/googlechat/GoogleChat.java
+++ b/src/main/java/io/gitlab/jfronny/googlechat/GoogleChat.java
@@ -12,6 +12,8 @@ import net.minecraft.text.*;
 import java.util.*;
 import java.util.concurrent.ForkJoinPool;
 import java.util.function.Function;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 public class GoogleChat implements ModInitializer {
     public static final String MOD_ID = "google-chat";
@@ -128,19 +130,22 @@ public class GoogleChat implements ModInitializer {
         return style.withHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, hoverText));
     }
 
+    private static final Pattern SURROUNDING_SPACE_PATTERN = Pattern.compile("^(\\s*)(.*\\S+)(\\s*)$", Pattern.MULTILINE);
     public static String translateIfNeeded(String source, TranslationDirection direction, boolean respectRegex) {
         if (source == null) return null;
         if (direction.shouldSkipOutright()) return source;
         if (respectRegex && direction.failsRegex(source)) return source;
         return computeIfAbsent2(direction == TranslationDirection.C2S ? c2ss : s2cs, source, t -> {
             try {
+                Matcher m = SURROUNDING_SPACE_PATTERN.matcher(source);
+                if (!m.find()) return source;
                 // Ignore generics since this is apparently not something java supports
                 @SuppressWarnings("rawtypes") TranslateService svc = GoogleChat.TRANSLATE_SERVICE;
                 if (svc == null) throw new NullPointerException("Translate service uninitialized");
                 Language sourceLang = svc.parseLang(direction.source());
                 Language targetLang = svc.parseLang(direction.target());
                 //noinspection unchecked
-                return svc.translate(source, sourceLang, targetLang);
+                return m.group(1) + svc.translate(m.group(2), sourceLang, targetLang) + m.group(3);
             } catch (Throwable e) {
                 LOGGER.error("Could not translate text: " + source, e);
                 return source;