From: Jason Rumney <jasonr@gnu.org>
Date: Wed, 10 Dec 2008 16:21:39 +0000 (+0000)
Subject: Improve comments for last change.
X-Git-Tag: emacs-pretest-23.0.90~1179
X-Git-Url: http://git.eshelyaron.com/gitweb/?a=commitdiff_plain;h=2db5c0e6a3bd7d1f3b302f41454de36e5f310fdb;p=emacs.git

Improve comments for last change.
---

diff --git a/src/w32font.c b/src/w32font.c
index 65e6c5448a6..4492a275bd1 100644
--- a/src/w32font.c
+++ b/src/w32font.c
@@ -1407,7 +1407,8 @@ add_font_entity_to_list (logical_font, physical_font, font_type, lParam)
               && logical_font->elfLogFont.lfCharSet != DEFAULT_CHARSET
               && logical_font->elfLogFont.lfCharSet != ANSI_CHARSET)
             return 1;
-	  /* unicode-sip fonts must contain characters beyond the BMP.  */
+	  /* unicode-sip fonts must contain characters beyond the BMP,
+	     so look for bit 57 (surrogates) in the Unicode subranges.  */
 	  else if (EQ (spec_charset, Qunicode_sip)
 		   && !(physical_font->ntmFontSig.fsUsb[1] & 0x02000000))
 	    return 1;