shithub: freetype+ttf2subf

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ref: 3af607b07d8ac4014c2d6be93ac518a349500dc4
parent: 21332fb6257cce6bd7c3f9e9ddeb4436ce07a965
author: Werner Lemberg <[email protected]>
date: Sun Nov 4 12:25:29 EST 2012

Improve documentation of Unicode IVS handling.

git/fs: mount .git/fs: mount/attach disallowed
--- a/include/freetype/freetype.h
+++ b/include/freetype/freetype.h
@@ -3424,9 +3424,13 @@
   /*    code range for CJK characters.                                     */
   /*                                                                       */
   /*    An IVS is registered and unique; for further details please refer  */
-  /*    to Unicode Technical Report #37, the Ideographic Variation         */
-  /*    Database.  To date (October 2007), the character with the most     */
-  /*    variants is U+908A, having 8~such IVS.                             */
+  /*    to Unicode Technical Standard #37, the Ideographic Variation       */
+  /*    Database:                                                          */
+  /*                                                                       */
+  /*      http://www.unicode.org/reports/tr37/                             */
+  /*                                                                       */
+  /*    To date (November 2012), the character with the most variants is   */
+  /*    U+9089, having 31 such IVS.                                        */
   /*                                                                       */
   /*    Adobe and MS decided to support IVS with a new cmap subtable       */
   /*    (format~14).  It is an odd subtable because it is not a mapping of */
--- a/include/freetype/ttnameid.h
+++ b/include/freetype/ttnameid.h
@@ -4,7 +4,7 @@
 /*                                                                         */
 /*    TrueType name ID definitions (specification only).                   */
 /*                                                                         */
-/*  Copyright 1996-2002, 2003, 2004, 2006, 2007, 2008 by                   */
+/*  Copyright 1996-2004, 2006-2008, 2012 by                                */
 /*  David Turner, Robert Wilhelm, and Werner Lemberg.                      */
 /*                                                                         */
 /*  This file is part of the FreeType project, and may only be used,       */
@@ -316,11 +316,12 @@
   /*                                                                       */
   /* Possible values of the language identifier field in the name records  */
   /* of the TTF `name' table if the `platform' identifier code is          */
-  /* TT_PLATFORM_MACINTOSH.                                                */
+  /* TT_PLATFORM_MACINTOSH.  These values are also used as return values   */
+  /* for function @FT_Get_CMap_Language_ID.                                */
   /*                                                                       */
   /* The canonical source for the Apple assigned Language ID's is at       */
   /*                                                                       */
-  /*   http://fonts.apple.com/TTRefMan/RM06/Chap6name.html                 */
+  /*   https://developer.apple.com/fonts/TTRefMan/RM06/Chap6name.html      */
   /*                                                                       */
 #define TT_MAC_LANGID_ENGLISH                       0
 #define TT_MAC_LANGID_FRENCH                        1
@@ -461,21 +462,10 @@
   /* of the TTF `name' table if the `platform' identifier code is          */
   /* TT_PLATFORM_MICROSOFT.                                                */
   /*                                                                       */
-  /* The canonical source for the MS assigned LCID's (seems to) be at      */
+  /* The canonical source for the MS assigned LCIDs is                     */
   /*                                                                       */
   /*   http://www.microsoft.com/globaldev/reference/lcid-all.mspx          */
   /*                                                                       */
-  /* It used to be at various places, among them                           */
-  /*                                                                       */
-  /*   http://www.microsoft.com/typography/OTSPEC/lcid-cp.txt              */
-  /*   http://www.microsoft.com/globaldev/reference/loclanghome.asp        */
-  /*   http://support.microsoft.com/support/kb/articles/Q224/8/04.ASP      */
-  /*   http://msdn.microsoft.com/library/en-us/passport25/                 */
-  /*           NET_Passport_VBScript_Documentation/Single_Sign_In/         */
-  /*           Advanced_Single_Sign_In/Localization_and_LCIDs.asp          */
-  /*                                                                       */
-  /* Hopefully, it seems now that the Globaldev site prevails...           */
-  /*                                   (updated by Antoine, 2004-02-17)    */
 
 #define TT_MS_LANGID_ARABIC_GENERAL                    0x0001
 #define TT_MS_LANGID_ARABIC_SAUDI_ARABIA               0x0401
--- a/include/freetype/tttables.h
+++ b/include/freetype/tttables.h
@@ -740,6 +740,9 @@
   /*    The language ID of `charmap'.  If `charmap' doesn't belong to a    */
   /*    TrueType/sfnt face, just return~0 as the default value.            */
   /*                                                                       */
+  /*    For a format~14 cmap (to access Unicode IVS), the return value is  */
+  /*    0xFFFFFFFF.                                                        */
+  /*                                                                       */
   FT_EXPORT( FT_ULong )
   FT_Get_CMap_Language_ID( FT_CharMap  charmap );