Remove experimental "Latin2" writing system (FT_OPTION_AUTOFIT2)

This code has always been experimental and was never compiled
anyway (FT_OPTION_AUTOFIT2 does not appear in ftoption.h or even
any of our build files).

ChangeLog

@@ -1,3 +1,18 @@
+2021-07-12  David Turner  <david@freetype.org>
+
+	Remove experimental "Latin2" writing system (FT_OPTION_AUTOFIT2)
+
+	This code has always been experimental and was never compiled anyway
+	(FT_OPTION_AUTOFIT2 does not appear in ftoption.h or even any of our
+	build files).
+
+	* include/freetype/internal/fttrace.h: Remove 'FT_TRACE_DEF( aflatin2 )'.
+	* src/autofit/aflatin2.[hc]: Removed.
+	* src/autofit/afloader.c: Remove undocumented hook to activate Latin2 system.
+	* src/autofit/afstyles.h: Remove ltn2_dflt style definition.
+	* src/autofit/afwrtsys.h: Remove LATIN2 writing system definition.
+	* src/autofit/autofit.c: Updated.
+
 2021-07-05  Werner Lemberg  <wl@gnu.org>
 
 	* src/base/ftlcdfil.c (FT_Library_SetLcdGeometry): Fix argument.

include/freetype/internal/fttrace.h

@@ -159,7 +159,6 @@ FT_TRACE_DEF( afglobal )
 FT_TRACE_DEF( afhints )
 FT_TRACE_DEF( afmodule )
 FT_TRACE_DEF( aflatin )
-FT_TRACE_DEF( aflatin2 )
 FT_TRACE_DEF( afshaper )
 FT_TRACE_DEF( afwarp )
 

src/autofit/aflatin2.h

@@ -1,46 +0,0 @@
-/* ATTENTION: This file doesn't compile.  It is only here as a reference */
-/*            of an alternative latin hinting algorithm that was always  */
-/*            marked as experimental.                                    */
-
-
-/****************************************************************************
- *
- * aflatin2.h
- *
- *   Auto-fitter hinting routines for latin writing system
- *   (specification).
- *
- * Copyright (C) 2003-2021 by
- * David Turner, Robert Wilhelm, and Werner Lemberg.
- *
- * This file is part of the FreeType project, and may only be used,
- * modified, and distributed under the terms of the FreeType project
- * license, LICENSE.TXT.  By continuing to use, modify, or distribute
- * this file you indicate that you have read the license and
- * understand and accept it fully.
- *
- */
-
-
-#ifndef AFLATIN2_H_
-#define AFLATIN2_H_
-
-#include "afhints.h"
-
-
-FT_BEGIN_HEADER
-
-
-  /* the `latin' writing system */
-
-  AF_DECLARE_WRITING_SYSTEM_CLASS( af_latin2_writing_system_class )
-
-
-/* */
-
-FT_END_HEADER
-
-#endif /* AFLATIN_H_ */
-
-
-/* END */

src/autofit/afloader.c

@@ -297,12 +297,6 @@
     if ( error )
       goto Exit;
 
-#ifdef FT_OPTION_AUTOFIT2
-    /* XXX: undocumented hook to activate the latin2 writing system. */
-    if ( load_flags & ( 1UL << 20 ) )
-      style_options = AF_STYLE_LTN2_DFLT;
-#endif
-
     /*
      * Glyphs (really code points) are assigned to scripts.  Script
      * analysis is done lazily: For each glyph that passes through here,

src/autofit/afstyles.h

@@ -299,15 +299,6 @@
          AF_BLUE_STRINGSET_LATP,
          AF_COVERAGE_DEFAULT )
 
-#ifdef FT_OPTION_AUTOFIT2
-  STYLE( ltn2_dflt, LTN2_DFLT,
-         "Latin 2 default style",
-         AF_WRITING_SYSTEM_LATIN2,
-         AF_SCRIPT_LATN,
-         AF_BLUE_STRINGSET_LATN,
-         AF_COVERAGE_DEFAULT )
-#endif
-
   STYLE( lisu_dflt, LISU_DFLT,
          "Lisu default style",
          AF_WRITING_SYSTEM_LATIN,

src/autofit/afwrtsys.h

@@ -26,9 +26,6 @@
 #include "aflatin.h"
 #include "afcjk.h"
 #include "afindic.h"
-#ifdef FT_OPTION_AUTOFIT2
-#include "aflatin2.h"
-#endif
 
 #endif /* AFWRTSYS_H_ */
 
@@ -44,9 +41,5 @@
   WRITING_SYSTEM( latin,  LATIN  )
   WRITING_SYSTEM( cjk,    CJK    )
   WRITING_SYSTEM( indic,  INDIC  )
-#ifdef FT_OPTION_AUTOFIT2
-  WRITING_SYSTEM( latin2, LATIN2 )
-#endif
-
 
 /* END */

src/autofit/autofit.c

@@ -26,7 +26,6 @@
 #include "afhints.c"
 #include "afindic.c"
 #include "aflatin.c"
-#include "aflatin2.c"
 #include "afloader.c"
 #include "afmodule.c"
 #include "afranges.c"