From c89aebc40b2c29ad6bcae8e5fff7189f70b35d55 Mon Sep 17 00:00:00 2001
From: Matthias Clasen <mclasen@redhat.com>
Date: Tue, 24 Jan 2023 20:24:27 -0500
Subject: [PATCH] hb-font: Document length limit for glyph names

This is useful information for users of the
hb_font_get_glyph_name() API.
---
 src/hb-font.cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/hb-font.cc b/src/hb-font.cc
index f2127c2b1..da5162b98 100644
--- a/src/hb-font.cc
+++ b/src/hb-font.cc
@@ -1343,6 +1343,9 @@ hb_font_get_glyph_contour_point (hb_font_t      *font,
  *
  * Fetches the glyph-name string for a glyph ID in the specified @font.
  *
+ * According to the OpenType specification, glyph names are limited to 63
+ * characters and can only contain (a subset of) ASCII.
+ *
  * Return value: `true` if data found, `false` otherwise
  *
  * Since: 0.9.2