v1-0001-Fix-recognizing-0x11A7-as-a-Hangul-T-syllable-in-Uni.patch

From 37d7ba5193a8de6bd31a38a7d93a37b66db1dd9d Mon Sep 17 00:00:00 2001
From: Diego Frias <mail@dzfrias.dev>
Date: Mon, 1 Jun 2026 11:32:41 -0700
Subject: [PATCH] Fix recognizing 0x11A7 as a Hangul T syllable in Unicode
 normalization

0x11A7 is not a valid Hangul T syllable despite being equal to T_BASE.
This is because, per the Unicode spec:

  TBase is set to one less than the beginning of the range of trailing
  consonants, which starts at U+11A8. TCount is set to one more than the
  number of trailing consonants relevant to the decomposition algorithm:
  (11C216 - 11A816 + 1) + 1.

So the first valid Hangul T syllable is 0x11A8. Also see
https://www.unicode.org/versions/Unicode17.0.0/core-spec/chapter-3/#G59434
for where the spec describes the usage of 0x11A8, not 0x11A7, during
composition.
---
 src/common/unicode_norm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/common/unicode_norm.c b/src/common/unicode_norm.c
index cf84f202414..0534ae34640 100644
--- a/src/common/unicode_norm.c
+++ b/src/common/unicode_norm.c
@@ -236,7 +236,7 @@ recompose_code(uint32 start, uint32 code, uint32 *result)
 	/* Check if two current characters are LV and T */
 	else if (start >= SBASE && start < (SBASE + SCOUNT) &&
 			 ((start - SBASE) % TCOUNT) == 0 &&
-			 code >= TBASE && code < (TBASE + TCOUNT))
+			 code > TBASE && code < (TBASE + TCOUNT))
 	{
 		/* make syllable of form LVT */
 		uint32		tindex = code - TBASE;
-- 
2.39.5 (Apple Git-154)