Fix exact match profanity

Bug: 8661070

This is a revival version of I421bed14cc71af771510142365

No diff in the test

Change-Id: I96bc9cec531682cce78bcf83223dcd2395b2be77

1 files changed, 7 insertions, 2 deletions

diff --git a/native/jni/src/suggest/core/suggest.cpp b/native/jni/src/suggest/core/suggest.cpp
index 3221dee9c..a18794850 100644
--- a/native/jni/src/suggest/core/suggest.cpp
+++ b/native/jni/src/suggest/core/suggest.cpp
@@ -163,9 +163,14 @@ int Suggest::outputSuggestions(DicTraverseSession *traverseSession, int *frequen
                 terminalDicNode->getFlags(), terminalDicNode->getAttributesPos());
         const bool isPossiblyOffensiveWord = terminalDicNode->getProbability() <= 0;
         const bool isExactMatch = terminalDicNode->isExactMatch();
+        const bool isFirstCharUppercase = terminalDicNode->isFirstCharUppercase();
+        // Heuristic: We exclude freq=0 first-char-uppercase words from exact match.
+        // (e.g. "AMD" and "and")
+        const bool isSafeExactMatch = isExactMatch
+                && !(isPossiblyOffensiveWord && isFirstCharUppercase);
         const int outputTypeFlags =
-                isPossiblyOffensiveWord ? Dictionary::KIND_FLAG_POSSIBLY_OFFENSIVE : 0
-                | isExactMatch ? Dictionary::KIND_FLAG_EXACT_MATCH : 0;
+                (isPossiblyOffensiveWord ? Dictionary::KIND_FLAG_POSSIBLY_OFFENSIVE : 0)
+                | (isSafeExactMatch ? Dictionary::KIND_FLAG_EXACT_MATCH : 0);
 
         // Entries that are blacklisted or do not represent a word should not be output.
         const bool isValidWord = !terminalAttributes.isBlacklistedOrNotAWord();