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Editing: gs_fntem.ps

% Copyright (C) 2001-2019 Artifex Software, Inc.
% All Rights Reserved.
%
% This software is provided AS-IS with no warranty, either express or
% implied.
%
% This software is distributed under license and may not be copied,
% modified or distributed except as expressly authorized under the terms
% of the license contained in the file LICENSE in this distribution.
%
% Refer to licensing information at http://www.artifex.com or contact
% Artifex Software, Inc.,  1305 Grant Avenue - Suite 200, Novato,
% CA 94945, U.S.A., +1(415)492-9861, for further information.
%

% A procset for Postscript font emulation

% The procedures must not depend on the presence of the
% procset dictionary on the dictionary stack.

languagelevel 2 .setlanguagelevel

%========================= Process xlatmap ====================
mark
%% Replace 1 (xlatmap)
(xlatmap) .runlibfile
.dicttomark dup systemdict exch /.xlatmap_dict exch put

% Convert it into a plain text to simplify the processing in C :
% *(fontkind\0\0\ *(charmap\0decoding\0) ) \0

() exch {
  3 1 roll =string cvs concatstrings (\0\0) concatstrings
  exch
  { =string cvs concatstrings (\0) concatstrings
  } forall
} forall
(\0) concatstrings
systemdict exch /.xlatmap exch put

/FontEmulationProcs 10 dict begin

%-------------------------------Font--------------------------------

/FontCommon  % - font_common -
{ currentdict /PaintType known not {
    /PaintType 0 def
  } if
  currentdict /Encoding .knownget not {
    //StandardEncoding
  } if
  dup type /nametype eq {
    /Encoding findresource
  } if
  /Encoding exch def
} bind def

/FontOptions 5 dict begin
  /make_procs currentdict def
  /NameKey /FontName def
  /TypeKey /FontType def

1
 {
 currentdict /FontMatrix known not { /FontMatrix [0.001 0 0 0.001 0 0] def } if
 currentdict /FontBBox known not { /FontBBox [-128 -128 1024 1024] cvx def } if % zfapi.ps refines it.
 /Private 0 dict def
 % if we're using the FAPI/UFST code for Microtype fonts,
 % then we've already created a "fake" CharStrings, so don't replace it.
 % See gs_fapi.ps
 currentdict /CharStrings known not {/CharStrings << /.notdef () >> def} if
 //FontCommon exec
 } bind def

42
 { /FontMatrix [1 0 0 1 0 0] def
 /FontBBox [0 0 1 1] def % zfapi.ps refines it.
 /CharStrings <<>> def
 /sfnts [<00010000 0000 0000 0000 0000 0000>] def
 /GlyphDirectory [] def
 //FontCommon exec
 } bind def

%fixme : more font types.

currentdict end def

%---------------------------CIDFont---------------------------

/TranslateCSI % <record> TranslateCSI <CSI>
{ RESMPDEBUG { (fntem TranslateCSI beg ) = } if
 begin
 CSI length 2 eq {
 << /Registry (Adobe)
 /Ordering CSI aload pop
 /Supplement exch
 >>
 } {
 << /Registry CSI 0 get
 /Ordering CSI 1 get
 /Supplement CSI 2 get
 >>
 } ifelse
 end
 RESMPDEBUG { (fntem TranslateCSI end ) = } if
} bind def

/CIDFontCommon
{ /CIDSystemInfo currentdict //TranslateCSI exec def
  currentdict /CSI undef
  /FontBBox [-128 -128 1024 1024] def % zfapi.ps refines it.
  /CIDCount 1 def % ChooseDecoding will set a reasonable value.
} bind def

% GFlyph substitution table for narrow, wide, proportional glyphs -
% used with TrueTypes.

currentpacking //false setpacking
/SubstNWP <<

% Array format : orig_type, beg_CID, end_CID, subst_beg_CID, subst_type
  % type = (n==narrow, w==wide, p==proportional).

/Japan1
  { p 1 94 231 n

p 17 26 780 w
    p 34 59 790 w
    p 66 91 816 w
    w 842 842 7918 w  % fixme: These substitutions require to shift the glyph origin.
    w 844 844 7919 w
    w 846 846 7920 w
    w 848 848 7921 w
    w 850 850 7922 w
    w 876 876 7923 w
    w 908 908 7924 w
    w 910 910 7925 w
    w 912 912 7926 w
    w 914 914 7927 w
    w 925 925 7928 w
    w 927 927 7929 w
    w 929 929 7930 w
    w 931 931 7931 w
    w 933 933 7932 w
    w 959 959 7933 w
    w 991 991 7934 w
    w 993 993 7935 w
    w 995 995 7936 w
    w 1002 1002 7937 w
    w 1009 1009 7938 w
    w 1010 1010 7939 w
  } cvlit

/Japan2 1 index

/CNS1
  { p 1 94 13648 n

p 17 26 333 w
    p 34 59 365 w
    p 66 91 391 w
  } cvlit

/GB1
  { p 2 94 814 n

p 2 94 262 w

p 1 1 7716 n
  } cvlit

/Korea1
  { p  1 60 8094 n
    p 62 94 8155 n

p  2 59 264 w
    p 63 94 325 w
  } cvlit

/Identity []

/Unicode []

>> def
setpacking

/CIDFontOptions 5 dict begin
  /make_procs currentdict def
  /NameKey /CIDFontName def
  /TypeKey /CIDFontType def

0
  { //CIDFontCommon exec
    /FDArray [
      14 dict begin
        /FontName CIDFontName =string cvs (%) concatstrings cvn def
        /FontType 1 def
        /FontMatrix [0.001 0 0 0.001 0 0 ] def
        /PaintType 0 def
        /Private 0 dict def
        currentdict
      end
    ] def
    /GlyphDirectory [] def
    /GDBytes 1 def
    /FDBytes 0 def
  } bind def

1
  { //CIDFontCommon exec
    /FontMatrix [1 0 0 1 0 0] def
    /BuildGlyph {} def
  } bind def

2
 { //CIDFontCommon exec
 /FontMatrix [1 0 0 1 0 0] def
 /GDBytes 2 def
 /CIDMap <0000> def
 /sfnts [<00010000 0000 0000 0000 0000 0000>] def
 /Encoding [] def
 /CharStrings << /.notdef 0 >> def
 } bind def

currentdict end def

/complete_instance % <font_name> <FontDict> <Options> complete_FAPI_Font <font_name> <FontDict>
{ begin
 dup length dict copy
 begin
 dup type /nametype ne { cvn } if
 dup NameKey exch def
 currentglobal //true setglobal
 make_procs TypeKey load .knownget {
 exec
 } { setglobal
 /complete_instance cvx /invalidfont signalerror
 } ifelse
 setglobal
 currentdict end
 end
} bind def

/GetFilePath % <scratch> <Name> <record> GetFilePath <filepath>
{ exch pop % (scratch) <record>
 /Path get % (scratch) (path)
 exch copy
 % What we make here it is not a complete PS resource.
 % Unable to provide full conformity :
 % the attempt to run this file may fail.
} bind def

/GetSize % <Name> <record> GetSize <size>
{ pop pop -1 % Unknown size.
 % fixme: probably we could provide an estimation size for some fonts.
} bind def

/RecordVirtualMethodsStub 3 dict begin
  /GetFilePath //GetFilePath def
  /GetSize //GetSize def
currentdict end def

% ---------------------- Decoding helpers ----------------------------

/encodingnames mark
 StandardEncoding /StandardEncoding
 ISOLatin1Encoding /ISOLatin1Encoding
 SymbolEncoding /SymbolEncoding
 DingbatsEncoding /DingbatsEncoding
.dicttomark def

/ChooseDecoding % ChooseDecoding 
{ { % A loop for 'exit' context.
 dup /Decoding .knownget {
 dup type /nametype eq {
 1 index /CIDFontType known { /CIDDecoding } { /Decoding } ifelse
 findresource 1 index exch /Decoding exch put
 } {
 pop
 } ifelse
 dup /CIDFontType known {
 dup dup /Decoding get /CIDCount get /CIDCount exch put
 } if
 exit
 } if
 dup /CIDFontType known {
 % This is a hooked CID font, no need for Decoding.
 exit
 } if
 % This works when the renderer can't choose character by name,
 % and we cannot determine the charset.
 % Probably this branch is to be removed after UFST problem is fixed.
 dup /Encoding get % <> encoding
 dup type /nametype eq {
 /Decoding findresource 1 index exch /Decoding exch put
 } {
 dup //encodingnames
 exch .knownget {
 { /Decoding findresource } stopped {pop pop //true}{ exch pop 1 index exch /Decoding exch put //false } ifelse
 }
 {
 //true
 } ifelse

{
 % unknown encoding, or an encoding for which we don't have a
 % predefined decoding, convert it to decoding :
 dup length dict begin
 /.notdef 0 def
 0 1 currentdict length 1 sub
 { dup 2 index exch get
 dup dup /.notdef ne exch type /nulltype ne and {
 exch def
 } {
 pop pop
 } ifelse
 } for
 pop
 currentdict end
 1 index exch /Decoding exch put
 } if
 } ifelse
 exit
 } loop
 dup /CIDFontType known {
 dup /SubstNWP .knownget not {
 dup /CIDSystemInfo get /Ordering get cvn
 } if
 dup type /nametype eq {
 //SubstNWP exch .knownget not {
 []
 } if % <> [SubstNWP]
 } if
 1 index exch /SubstNWP exch put
 } if
} bind def

/PrintFontRef % <string|name> PrintFontRef <string|name> 
{ dup /FontName known { (Font ) } { (CIDFont ) } ifelse print
 1 index =string cvs print
 dup /FontName .knownget not {
 dup /CIDFontName get
 } if % <string|name> <fontname>
 dup 3 index ne {
 ( \( aliased from ) print
 =string cvs print ( \)) print
 } {
 pop
 } ifelse
} bind def

/GetFontType % GetFontType int
{ dup /CIDFontType .knownget {
 exch pop 9 add
 } {
 /FontType get
 } ifelse
} bind def

/FindInArray % <array> <elem> .array_find <bool>
{ //false 3 1 roll
 exch { % false elem elem_i
 1 index eq { % false elem
 pop //true exch
 } if
 } forall
 pop
} bind def

/ProvideUnicodeDecoding % ProvideUnicodeDecoding 
{
 % If the font is maintained by FAPI, or if it is TT-emulated CID font,
 % it already has /Decoding. But its value isn't guaranteeed to
 % be an Unicode decoding. Since we can't determine whether
 % it is an Unicode decoding, we unconditionally load an appropriate Unicode decoding
 % and attach it with /GlyphNames2Unicode entry.
 %
 % Another interesting case is when the font already has /GlyphNames2Unicode.
 % The latter to be used instead. Note that /GlyphNames2Unicode
 % appears only when type 32 fonts are disable (see .pdf_hook_DSC_Creator),
 % but an automatic disabling is not implemented yet.

currentglobal //true setglobal exch
 dup /FontInfo known not {
 dup /FontInfo 1 dict put
 } if
 { % A loop just for 'exit' context.
 dup /FontInfo get /GlyphNames2Unicode known {
 exit
 } if
 dup /CIDFontType known {
 dup mark exch % bool [ 
 dup /CIDSystemInfo get /Ordering get (.Unicode) % bool [ () ()
 concatstrings cvn % bool [ /Name
 /CIDDecoding { findresource } stopped {
 % Can't provide a decoding, giving up without creating /GlyphNames2Unicode.
 cleartomark exit
 } if % bool [ <D>
 exch /FontInfo get exch % bool [ <FI> <D>
 /GlyphNames2Unicode exch
 .forceput % FontInfo can be read-only.
 pop % bool 
 exit
 } executeonly if
 dup /FontInfo get % bool <FI>
 /GlyphNames2Unicode /Unicode /Decoding findresource
 .forceput % FontInfo can be read-only.
 exit
 } executeonly loop
 exch setglobal
} .bind executeonly odef % must be bound and hidden for .forceput

currentdict end /ProcSet defineresource pop

.setlanguagelevel

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