From c0cd7c13a3a29fc6c609af45de9a8311711650a3 Mon Sep 17 00:00:00 2001
From: Zach Nelson <zach@zdnelson.com>
Date: Tue, 24 Feb 2026 16:44:20 -0600
Subject: [PATCH] feat: Latin Extended-B European glyphs (#1157)

## Summary

**What is the goal of this PR?**

Add Latin Extended-B glyphs for Croatian, Romanian, Pinyin, and European
diacritical variants. Fixes #921.

---

### AI Usage

While CrossPoint doesn't have restrictions on AI tools in contributing,
please be transparent about their usage as it
helps set the right context for reviewers.

Did you use AI tools to help write this code? _**PARTIALLY, confirmed
codepoint ranges with Claude**_
---
 lib/EpdFont/scripts/fontconvert.py | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/EpdFont/scripts/fontconvert.py b/lib/EpdFont/scripts/fontconvert.py
index d24badc4..ac784a3c 100755
--- a/lib/EpdFont/scripts/fontconvert.py
+++ b/lib/EpdFont/scripts/fontconvert.py
@@ -46,6 +46,10 @@ intervals = [
     # Only Ơ/ơ (U+01A0-01A1), Ư/ư (U+01AF-01B0) for Vietnamese
     (0x01A0, 0x01A1),
     (0x01AF, 0x01B0),
+    ### Latin Extended-B (European subset only) ###
+    # Croatian digraphs (DŽ/Lj/Nj), Pinyin caron variants,
+    # European diacritical variants, Romanian (Ș/ș/Ț/ț)
+    (0x01C4, 0x021F),
     ### Vietnamese Extended ###
     # All precomposed Vietnamese characters with tone marks
     # Ả Ấ Ầ Ẩ Ẫ Ậ Ắ Ằ Ẳ Ẵ Ặ Ẹ Ẻ Ẽ Ế Ề Ể Ễ Ệ Ỉ Ị Ọ Ỏ Ố Ồ Ổ Ỗ Ộ Ớ Ờ Ở Ỡ Ợ Ụ Ủ Ứ Ừ Ử Ữ Ự Ỳ Ỵ Ỷ Ỹ
@@ -667,8 +671,10 @@ if compress:
         (0x0000, 0x007F),   # ASCII
         (0x0080, 0x00FF),   # Latin-1 Supplement
         (0x0100, 0x017F),   # Latin Extended-A
+        (0x0180, 0x024F),   # Latin Extended-B
         (0x0300, 0x036F),   # Combining Diacritical Marks
         (0x0400, 0x04FF),   # Cyrillic
+        (0x1EA0, 0x1EF9),   # Vietnamese Extended
         (0x2000, 0x206F),   # General Punctuation
         (0x2070, 0x209F),   # Superscripts & Subscripts
         (0x20A0, 0x20CF),   # Currency Symbols