[*] remove references to obsolete formats (PF{A,B}, DFONT, FEA)

Thanks to @dohyunkim for reminding me to be thorough!

At least in our own files. A patch has been sent upstream to apply the
same change to the generic loader.

7 files changed, 19 insertions, 26 deletions

diff --git a/doc/luaotfload-main.tex b/doc/luaotfload-main.tex
index 92a4c01..0d2d7eb 100644
--- a/doc/luaotfload-main.tex
+++ b/doc/luaotfload-main.tex
@@ -1334,8 +1334,8 @@ files not contained in the merge. Some of these have no equivalent in
       overrides the \CONTEXT logging functionality.
     \endaltitem
     \beginaltitem {luaotfload-loaders.lua}
-      registers the \OpenType font reader as handler for Postscript
-      fonts (\abbrev{pfa}, \abbrev{pfb}).
+      registers readers in the fontloader for various kinds of
+      font formats
     \endaltitem
     \beginaltitem {luaotfload-parsers.lua}
       various \abbrev{lpeg}-based parsers.
diff --git a/doc/luaotfload-tool.rst b/doc/luaotfload-tool.rst
index 5b834b4..c8bd8ec 100644
--- a/doc/luaotfload-tool.rst
+++ b/doc/luaotfload-tool.rst
@@ -80,22 +80,19 @@ update mode
                         system fonts if they are installed in both.
 --formats=EXTENSIONS    Extensions of the font files to index.
                         Where *EXTENSIONS* is a comma-separated list of
-                        supported file extensions (otf, ttf, ttc,
-                        dfont, pfa, and pfb).  If the list is prefixed
+                        supported file extensions (otf, ttf, ttc).
+                        If the list is prefixed
                         with a ``+`` sign, the given list is added to
                         the currently active one; ``-`` subtracts.
-                        Default: *otf,ttf,ttc,dfont*.
+                        Default: *otf,ttf,ttc*.
                         Examples:
 
                         1) ``--formats=-ttc,ttf`` would skip
                            TrueType fonts and font collections;
                         2) ``--formats=otf`` would scan only OpenType
                            files;
-                        3) ``--formats=+pfb`` includes binary
-                           Postscript files. **Warning**: with a
-                           standard TeX Live installation this will
-                           grow the database considerably and slow down
-                           font indexing.
+                        3) ``--formats=+afm`` includes binary
+                           Postscript files accompanied by an AFM file.
 
 query mode
 -----------------------------------------------------------------------
diff --git a/doc/luaotfload.conf.rst b/doc/luaotfload.conf.rst
index 25f5a5c..eb4c491 100644
--- a/doc/luaotfload.conf.rst
+++ b/doc/luaotfload.conf.rst
@@ -33,7 +33,7 @@ A small Luaotfload configuration file with few customizations could
 look as follows: ::
 
     [db]
-        formats = afm, pfa, pfb
+        formats = afm,ttf
         compress = false
     
     [misc]
@@ -43,10 +43,9 @@ look as follows: ::
         log-level = 6
 
 This will make Luaotfload ignore all font files except for PostScript
-formats. NB: With a default Tex Live install the PS fonts will take
-much longer to index than OpenType or TrueType ones. Also, an
+binary fonts with a matching AFM file, and Truetype fonts. Also, an
 uncompressed index file will be dumped which is going to be much larger
-due to the huge amount of PostScript fonts indexed. The terminal width
+than the default gzip’ed index. The terminal width
 is truncated to 60 characters which influences the verbose output
 during indexing. Finally, the verbosity is increased greatly: each font
 file being processed will be printed to the stdout on a separate line,
@@ -131,7 +130,7 @@ Section ``db``
 +-----------------+--------+---------------------------+
 |  compress       |   b    |  ``true``                 |
 +-----------------+--------+---------------------------+
-|  formats        |   s    |  ``"otf,ttf,ttc,dfont"``  |
+|  formats        |   s    |  ``"otf,ttf,ttc"``        |
 +-----------------+--------+---------------------------+
 |  max-fonts      |   n    |  ``2^51``                 |
 +-----------------+--------+---------------------------+
@@ -158,14 +157,12 @@ containing one or more of these elements:
 
 * ``otf``               (OpenType format),
 * ``ttf`` and ``ttc``       (TrueType format),
-* ``dfont``             (Macintosh TrueType format),
 * ``afm``               (Adobe Font Metrics),
-* ``pfb`` and ``pfa``       (PostScript format).
 
 It corresponds loosely to the ``--formats`` option to
 **luaotfload-tool**. Invalid or duplicate members are ignored; if the
 list does not contain any useful identifiers, the default list
-``"otf,ttf,ttc,dfont"`` will be used.
+``"otf,ttf,ttc"`` will be used.
 
 The variable ``max-fonts`` determines after processing how many font
 files the font scanner will terminate the search. This is useful for
diff --git a/misc/luaotfload.conf.example b/misc/luaotfload.conf.example
index 2756d62..b0323af 100644
--- a/misc/luaotfload.conf.example
+++ b/misc/luaotfload.conf.example
@@ -3,7 +3,7 @@
 
 [db]
     compress        = true
-    formats         = otf, ttf, ttc, dfont
+    formats         = otf, ttf, ttc
     max-fonts       = 2.2517998136852e15
     scan-local      = false
     skip-read       = false
diff --git a/src/luaotfload-configuration.lua b/src/luaotfload-configuration.lua
index 701f7b2..8faf3d1 100644
--- a/src/luaotfload-configuration.lua
+++ b/src/luaotfload-configuration.lua
@@ -89,7 +89,7 @@ local config_paths = {
 }
 
 local valid_formats = tabletohash {
-  "otf", "ttc", "ttf", "dfont", "afm", --"pfb", "pfa",
+  "otf", "ttc", "ttf", "afm", --"pfb", "pfa",
 }
 
 local feature_presets = {
@@ -188,7 +188,7 @@ local permissible_color_callbacks = {
 
 local default_config = {
   db = {
-    formats         = "otf,ttf,ttc,dfont",
+    formats         = "otf,ttf,ttc",
     scan_local      = false,
     skip_read       = false,
     strip           = true,
diff --git a/src/luaotfload-database.lua b/src/luaotfload-database.lua
index 6fe01ba..135ab0e 100644
--- a/src/luaotfload-database.lua
+++ b/src/luaotfload-database.lua
@@ -207,8 +207,7 @@ local make_luanames = function (path)
 end
 
 local format_precedence = {
-    "otf",   "ttc", "ttf",
-    "dfont", "afm",
+    "otf",  "ttc", "ttf", "afm",
     --- "pfb", "pfa",
 }
 
@@ -336,7 +335,7 @@ This is a sketch of the luaotfload db:
     }
     and metadata = {
         created     : string       // creation time
-        formats     : string list; // { "otf", "ttf", "ttc", "dfont" }
+        formats     : string list; // { "otf", "ttf", "ttc" }
         local       : bool;        (* set if local fonts were added to the db *)
         modified    : string       // modification time
         statistics  : TODO;        // created when built with "--stats"
@@ -360,7 +359,7 @@ This is a sketch of the luaotfload db:
         conflicts       : { barename : int; basename : int }; // filename conflict with font at index; happens with subfonts
         familyname      : string;   // sanitized name of the font family the font belongs to, usually from the names table
         fontname        : string;   // sanitized name of the font
-        format          : string;   // "otf" | "ttf" | "dfont" | "afm"
+        format          : string;   // "otf" | "ttf" | "afm"
         fullname        : string;   // sanitized full name of the font including style modifiers
         fullpath        : string;   // path to font in filesystem
         index           : int;      // index in the mappings table
@@ -1619,7 +1618,6 @@ ot_fullinfo = function (filename,
 end
 
 local loaders = {
-    dfont   = ot_fullinfo,
     otf     = ot_fullinfo,
     ttc     = ot_fullinfo,
     ttf     = ot_fullinfo,
diff --git a/src/luaotfload-loaders.lua b/src/luaotfload-loaders.lua
index d3828aa..f0c1913 100644
--- a/src/luaotfload-loaders.lua
+++ b/src/luaotfload-loaders.lua
@@ -83,6 +83,7 @@ local install_formats = function ()
      and aux ("pfa", unsupported_reader "pfa")
      and aux ("pfb", unsupported_reader "pfb")
      and aux ("ofm", readers.tfm)
+     and aux ("dfont", unsupported_reader "dfont")
 end
 
 --[[doc--