(OTF_Glyph): Delete member alternate_set.

(OTF_drive_gsub_alternate): Extern it.

diff --git a/src/otf.h b/src/otf.h
index 9499a60..ed7a5bb 100644 (file)
--- a/src/otf.h
+++ b/src/otf.h
@@ -63,6 +63,8 @@ write to the Free Software Foundation, Inc., 59 Temple Place, Suite
     (3-4) OTF_drive_gsub()
     (3-5) OTF_drive_gpos()
     (3-6) OTF_drive_tables()
+    (3-7) OTF_get_unicode()
+    (3-8) OTF_drive_gsub_alternate()
 
     (4) API for error handling
     (4-1) Error codes
@@ -1175,8 +1177,6 @@ typedef struct
       OTF_Anchor *mark2_anchor;
     } f6;
   } f;
-
-  OTF_AlternateSet *alternate_set;
 } OTF_Glyph;
 
 /***
@@ -1242,7 +1242,9 @@ extern int OTF_drive_gdef (OTF *otf, OTF_GlyphString *gstring);
     font $OTF, and by using features the font has for script $SCRIPT
     and language system $LANGSYS, update member <glyphs> of the glyph
     string $GSTRING.  It may substitute, delete, insert glyphs in that
-    array.  $FEATURES is a list of features to apply.  */
+    array.  $FEATURES is a list of features to apply.  This doesn't
+    perform a lookup of type 3 (Alternate Substitution).  For that,
+    use OTF_drive_gsub_alternate().  */
 
 extern int OTF_drive_gsub (OTF *otf, OTF_GlyphString *gstring,
                           char *script, char *language, char *features);
@@ -1283,6 +1285,18 @@ extern int OTF_drive_tables (OTF *otf, OTF_GlyphString *gstring,
 
 extern int OTF_get_unicode (OTF *otf, OTF_GlyphID code);
 
+/*** (3-8) OTF_drive_gsub_alternate() */
+
+/***
+    Find alternate glyphs.
+
+    This is like OTF_drive_gsub(), but perform only a lookup of type 3
+    (Alternate Substituion).  */
+
+extern int OTF_drive_gsub_alternate (OTF *otf, OTF_GlyphString *gstring,
+                                    char *script, char *language,
+                                    char *features);
+
 /*** (4) API for error handling ***/
 
 /*** (4-1) Error codes ***/