1208 lines
43 KiB
PostScript
1208 lines
43 KiB
PostScript
% Copyright (C) 1990-2003 artofcode LLC. All rights reserved.
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%
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% This software is provided AS-IS with no warranty, either express or
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% implied.
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%
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% This software is distributed under license and may not be copied,
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% modified or distributed except as expressly authorized under the terms
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% of the license contained in the file LICENSE in this distribution.
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%
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% For more information about licensing, please refer to
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% http://www.ghostscript.com/licensing/. For information on
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% commercial licensing, go to http://www.artifex.com/licensing/ or
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% contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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% San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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% $Id: gs_fonts.ps,v 1.48 2004/11/24 20:09:01 ghostgum Exp $
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% Font initialization and management code.
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% Define the default font.
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/defaultfontname /Courier def
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% Define the name of the font map file.
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% Note that the "%%Replace " comment below provides the font map file name
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% for compiling initialization files into executable. Most likely it should be
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% consistent with the one specified here.
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/defaultfontmap (Fontmap) def
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/defaultfontmap_content 50 dict
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1 dict begin
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/; { 2 index 3 1 roll .growput } bind def
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%% Replace 0 (Fontmap)
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end def
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% ------ End of editable parameters ------ %
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% Define the UniqueIDs and organization XUID assigned to Aladdin.
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% UniqueIDs 5,066,501 - 5,066,580 are assigned as follows:
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% 01 and 02 for shareware Cyrillic
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% 33 through 67 for Type 1 versions of the Hershey fonts
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% UniqueIDs 5,115,501 - 5,115,600 are currently unassigned.
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/AladdinEnterprisesXUID 107 def
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% If SUBSTFONT is defined, make it the default font.
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/SUBSTFONT where { pop /defaultfontname /SUBSTFONT load def } if
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% Define a reliable way of accessing FontDirectory in systemdict.
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/.FontDirectory
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{ /FontDirectory .systemvar
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} .bind odef
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% If DISKFONTS is true, we load individual CharStrings as they are needed.
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% (This is intended primarily for machines with very small memories.)
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% In this case, we define another dictionary, parallel to FontDirectory,
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% that retains an open file for every font loaded.
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/FontFileDirectory 10 dict def
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% Define a temporary string for local use, since using =string
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% interferes with some PostScript programs.
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/.fonttempstring 8192 string def
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% Split up a search path into individual directories or files.
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/.pathlist % <path> .pathlist <dir1|file1> ...
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{ { dup length 0 eq { pop exit } if
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.filenamelistseparator search not { exit } if
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exch pop exch
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}
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loop
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} bind def
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% Load a font name -> font file name map.
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userdict /Fontmap .FontDirectory maxlength dict put
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/.loadFontmap { % <file> .loadFontmap -
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% We would like to simply execute .definefontmap as we read,
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% but we have to maintain backward compatibility with an older
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% specification that makes later entries override earlier
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% ones within the same file.
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50 dict exch .readFontmap
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{ .definefontmap } forall
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} bind def
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/.readFontmap { % <dict> <file> .readFontmap <dict>
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{ dup token not { closefile exit } if
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% stack: dict file fontname
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% This is a hack to get around the absurd habit of MS-DOS editors
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% of adding an EOF character at the end of the file.
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dup (\032) eq { pop closefile exit } if
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1 index token not
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{ (Fontmap entry for ) print dup =only
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( has no associated file or alias name! Giving up.) = flush
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{.readFontmap} 0 get 1 .quit
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} if
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dup type dup /stringtype eq exch /nametype eq or not
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{ (Fontmap entry for ) print 1 index =only
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( has an invalid file or alias name! Giving up.) = flush
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{.readFontmap} 0 get 1 .quit
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} if
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% stack: dict file fontname filename|aliasname
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1 index type /stringtype eq
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1 index type /nametype eq and 1 index xcheck and
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1 index /run eq 2 index /.runlibfile eq or and {
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% This is an inclusion entry.
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pop findlibfile { exch pop } { file } ifelse
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2 index exch .readFontmap pop
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} {
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% This is a real entry.
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% Read and pop tokens until a semicolon.
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{ 2 index token not
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{ (Fontmap entry for ) print 1 index =only
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( ends prematurely! Giving up.) = flush
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{.loadFontmap} 0 get 1 .quit
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} if
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dup /; eq { pop 3 index 3 1 roll .growput exit } if
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pop
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} loop
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} ifelse
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} loop
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} bind def
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% Add an entry in Fontmap. We redefine this if the Level 2
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% resource machinery is loaded.
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/.definefontmap % <fontname> <file|alias> .definefontmap -
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{ % Since Fontmap is global, make sure the values are storable.
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% If the fontname contains Unicode (first byte == \000) and
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% this is not an alias definition, define an alias using ASCII
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% (stripping out the high \000 bytes). Observed with some TT fonts.
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1 index 100 string cvs 0 get 0 eq 1 index type /nametype ne and {
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1 index 100 string cvs dup length 2 div cvi string true exch
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0 1 2 index length 1 sub {
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% stack: fontname filename fontnamestring addflag newstring index
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dup 4 index exch 2 mul get 0 ne {
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% High byte of pair is not \000
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pop pop false exch
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exit
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} if
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dup 4 index exch 2 mul 1 add get 2 index 3 1 roll put
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} for
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exch {
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DEBUG { (\nAdding alias for: ) print 1 index ==only ( as: ) print dup == flush } if
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cvn exch cvn .definefontmap % recurse with an alias
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} {
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pop pop % discard the name
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} ifelse
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} if
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.currentglobal 3 1 roll true .setglobal
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dup type /stringtype eq
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{ dup .gcheck not { dup length string copy } if
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}
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if
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Fontmap 3 -1 roll 2 copy .knownget
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{ % Add an element to the end of the existing value,
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% unless it's the same as the current last element.
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mark exch aload pop counttomark 4 add -1 roll
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2 copy eq { cleartomark pop pop } { ] readonly .growput } ifelse
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}
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{ % Make a new entry.
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mark 4 -1 roll ] readonly .growput
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}
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ifelse .setglobal
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} bind def
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% Parse a font file just enough to find the FontName or FontType.
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/.findfontvalue { % <file> <key> .findfontvalue <value> true
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% <file> <key> .findfontvalue false
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% Closes the file in either case.
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exch dup read {
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2 copy unread 16#80 eq {
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dup (xxxxxx) readstring pop pop % skip .PFB header
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} if
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{ % Stack: key file
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% Protect ourselves against syntax errors here.
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dup { token } stopped { pop false exit } if
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not { false exit } if % end of file
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dup /eexec eq { pop false exit } if % reached eexec section
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dup /Subrs eq { pop false exit } if % Subrs without eexec
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dup /CharStrings eq { pop false exit } if % CharStrings without eexec
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dup 3 index eq
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{ xcheck not { dup token exit } if } % found key
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{ pop }
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ifelse
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} loop
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% Stack: key file value true (or)
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% Stack: key file false
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dup { 4 } { 3 } ifelse -2 roll closefile pop
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} { closefile pop false } ifelse
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} bind def
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/.findfontname
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{ /FontName .findfontvalue
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} bind def
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% If there is no FONTPATH, try to get one from the environment.
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NOFONTPATH { /FONTPATH () def } if
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/FONTPATH where
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{ pop }
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{ /FONTPATH (GS_FONTPATH) getenv not { () } if def }
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ifelse
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FONTPATH length 0 eq { (%END FONTPATH) .skipeof } if
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/FONTPATH [ FONTPATH .pathlist ] def
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% Scan directories looking for plausible fonts. "Plausible" means that
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% the file begins with %!PS-AdobeFont or %!FontType1, or with \200\001
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% followed by four arbitrary bytes and then either of these strings.
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% To speed up the search, we skip any file whose name appears in
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% the Fontmap (with any extension and upper/lower case variation) already,
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% and any file whose extension definitely indicates it is not a font.
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%
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% NOTE: The current implementation of this procedure is somewhat Unix/DOS-
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% specific. It assumes that '/' and '\' are directory separators, and that
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% the part of a file name following the last '.' is the extension.
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%
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/.lowerstring % <string> .lowerstring <lowerstring>
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{ 0 1 2 index length 1 sub
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{ 2 copy get dup 65 ge exch 90 le and
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{ 2 copy 2 copy get 32 add put }
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if pop
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}
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for
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} bind def
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/.splitfilename { % <dir.../base.extn> .basename <base> <extn>
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% Make the file name read-only to detect aliasing bugs.
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% We really don't like doing this, but we've had one
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% such bug already.
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readonly {
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(/) search { true } { (\\) search } ifelse { pop pop } { exit } ifelse
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} loop
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dup { (.) search { pop pop } { exit } ifelse } loop
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2 copy eq {
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pop ()
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} {
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exch dup length 2 index length 1 add sub 0 exch getinterval exch
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} ifelse
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} bind def
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/.scanfontdict 1 dict def % establish a binding
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/.scanfontbegin
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{ % Construct the table of all file names already in Fontmap.
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currentglobal true setglobal
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.scanfontdict dup maxlength Fontmap length 2 add .max .setmaxlength
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Fontmap
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{ exch pop
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{ dup type /stringtype eq
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{ .splitfilename pop .fonttempstring copy .lowerstring cvn
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.scanfontdict exch true put
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}
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{ pop
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}
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ifelse
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}
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forall
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}
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forall
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setglobal
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} bind def
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/.scanfontskip mark
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% Strings are converted to names anyway, so....
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/afm true
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/bat true
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/c true
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/cmd true
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/com true
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/dir true
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/dll true
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/doc true
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/drv true
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/exe true
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/fon true
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/fot true
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/h true
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/o true
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/obj true
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/pfm true
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/pss true % Adobe Multiple Master font instances
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/txt true
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.dicttomark def
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/.scan1fontstring 8192 string def
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% %%BeginFont: is not per Adobe documentation, but a few fonts have it.
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/.scanfontheaders [(%!PS-Adobe*) (%!FontType*) (%%BeginFont:*)] def
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0 .scanfontheaders { length .max } forall 6 add % extra for PFB header
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/.scan1fontfirst exch string def
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/.scanfontdir % <dirname> .scanfontdir -
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{ currentglobal exch true setglobal
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QUIET not { (Scanning ) print dup print ( for fonts...) print flush } if
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[ 1 index ] (*) .generate_dir_list_templates
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0 0 0 4 -1 roll % found scanned files
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{ % stack: <fontcount> <scancount> <filecount> <filename>
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exch 1 add exch % increment filecount
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dup .splitfilename .fonttempstring copy .lowerstring
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% stack: <fontcount> <scancount> <filecount+1> <filename>
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% <BASE> <ext>
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.scanfontskip exch known exch .scanfontdict exch known or
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{ pop
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% stack: <fontcount> <scancount> <filecount+1>
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}
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{ 3 -1 roll 1 add 3 1 roll
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% stack: <fontcount> <scancount+1> <filecount+1> <filename>
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dup (r) { file } .internalstopped
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{ pop pop null ()
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% stack: <fontcount> <scancount+1> <filecount+1> <filename>
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% null ()
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}
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{
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% On some platforms, the file operator will open directories,
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% but an error will occur if we try to read from one.
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% Handle this possibility here.
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dup .scan1fontfirst { readstring } .internalstopped
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{ pop pop () }
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{ pop }
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ifelse
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% stack: <fontcount> <scancount+1> <filecount+1>
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% <filename> <file> <header>
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}
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ifelse
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% Check for PFB file header.
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dup (\200\001????*) .stringmatch
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{ dup length 6 sub 6 exch getinterval }
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if
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% Check for font file headers.
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false .scanfontheaders
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{ 2 index exch .stringmatch or
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}
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forall exch pop
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{ % stack: <fontcount> <scancount+1> <filecount+1> <filename>
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% <file>
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dup 0 setfileposition .findfontname
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{ dup Fontmap exch known
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{ pop pop
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}
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{ exch copystring exch
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DEBUG { ( ) print dup =only flush } if
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1 index .definefontmap
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.splitfilename pop true .scanfontdict 3 1 roll .growput
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% Increment fontcount.
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3 -1 roll 1 add 3 1 roll
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}
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ifelse
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}
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{ pop
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}
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ifelse
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}
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% .findfontname will have done a closefile in the above case.
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{ dup null eq { pop } { closefile } ifelse pop
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}
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ifelse
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}
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ifelse
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}
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.scan1fontstring filenameforall
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QUIET
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{ pop pop pop }
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{ ( ) print =only ( files, ) print =only ( scanned, ) print
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=only ( new fonts.) = flush
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}
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ifelse
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pop
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setglobal
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} bind def
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%END FONTPATH
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% Try to enumerate native fonts registered with the os
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% and add them to the fontmap. This relies on a custom
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% operator which calls platform-specific C code. It
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% returns an array of arrays, each containing a pair
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% of strings: what the system thinks is the ps name,
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% and the access path.
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/.setnativefontmapbuilt { % set whether we've been run
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systemdict exch /.nativefontmapbuilt exch .forceput
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} .bind executeonly def
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false .setnativefontmapbuilt
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/.buildnativefontmap { % - .buildnativefontmap <bool>
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QUIET not {
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(Querying operating system for font files...\n)
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print flush
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} if
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.getnativefonts dup
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{
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exch
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{
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% stack: [ (name) (path) ]
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% verify the font name ourselves
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dup 1 get (r) { file } stopped
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{
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% skip the entry if we can't open the returned path
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pop pop pop
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}{
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% we could open the font file
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.findfontname
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not { dup 0 get } if % stack: (newname) [ (name) (path) ]
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% DEBUG { ( found ) print dup print (\n) print flush } if
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% add entry to the fontmap
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1 index exch 0 exch dup type /nametype ne {cvn} if put
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aload pop .definefontmap
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} ifelse
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} forall
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} if
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% record that we've been run
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true .setnativefontmapbuilt
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} bind def
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% Create the dictionary that registers the .buildfont procedure
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% (called by definefont) for each FontType.
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/buildfontdict 20 dict def
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% Register Type 3 fonts, which are always supported, for definefont.
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buildfontdict 3 /.buildfont3 cvx put
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% Register Type 0 fonts if they are supported. Strictly speaking,
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% we should do this in its own file (gs_type0.ps), but since this is
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% the only thing that would be in that file, it's simpler to put it here.
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/.buildfont0 where { pop buildfontdict 0 /.buildfont0 cvx put } if
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% Define definefont. This is a procedure built on a set of operators
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% that do all the error checking and key insertion.
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/.growfontdict
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{ % Grow the font dictionary, if necessary, to ensure room for an
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% added entry, making sure there is at least one slot left for FID.
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dup maxlength 1 index length sub 2 lt
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{ dup dup wcheck
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{ .growdict }
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{ .growdictlength dict .copydict }
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ifelse
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}
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{ dup wcheck not { dup maxlength dict .copydict } if
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}
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ifelse
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} bind def
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/.completefont {
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{ % Check for disabled platform fonts.
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NOPLATFONTS
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{ % Make sure we leave room for FID.
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.growfontdict dup /ExactSize 0 put
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}
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{ % Hack: if the Encoding looks like it might be the
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% Symbol or Dingbats encoding, load those now (for the
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% benefit of platform font matching) just in case
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% the font didn't actually reference them.
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% Note that some types of font don't have an Encoding.
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dup /Encoding .knownget {
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dup length 65 ge {
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64 get
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dup /congruent eq { SymbolEncoding pop } if
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/a9 eq { DingbatsEncoding pop } if
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} {
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pop
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} ifelse
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} if
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}
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ifelse
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dup /.OrigFont known not {
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dup dup /.OrigFont exch .growput
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} if
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true exch
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% If this is a CIDFont, CIDFontType takes precedence
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% over FontType.
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dup /CIDFontType known {
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/.buildcidfont where {
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pop exch not exch % true => false
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} if
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} if
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exch {
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dup /FontType get //buildfontdict exch get exec
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} {
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.buildcidfont
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} ifelse
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DISKFONTS {
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FontFileDirectory 2 index known {
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dup /FontFile FontFileDirectory 4 index get .growput
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} if
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} if
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systemdict /ProvideUnicode .knownget not { false } if {
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/FontEmulationProcs /ProcSet findresource
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/ProvideUnicodeDecoding get exec
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} if
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readonly % stack: name fontdict
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} stopped { /invalidfont signalerror } if
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} bind odef
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/definefont
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{ .completefont
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% If the current allocation mode is global, also enter
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% the font in LocalFontDirectory.
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.currentglobal
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{ //systemdict /LocalFontDirectory .knownget
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{ 2 index 2 index .growput }
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if
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}
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if
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dup .FontDirectory 4 -2 roll .growput
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% If the font originated as a resource, register it.
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currentfile .currentresourcefile eq { dup .registerfont } if
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} odef
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|
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% Define a procedure for defining aliased fonts.
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% We use this only for explicitly aliased fonts, not substituted fonts:
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% we think this matches the observed behavior of Adobe interpreters.
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/.aliasfont % <name> <font> .aliasfont <newFont>
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{ .currentglobal 3 1 roll dup .gcheck .setglobal
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% <bool> <name> <font>
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dup length 2 add dict % <bool> <name> <font> <dict>
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dup 3 -1 roll % <bool> <name> <dict> <dict> <font>
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{ 1 index /FID eq { pop pop } { put dup } ifelse } forall
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% <bool> <name> <dict> <dict>
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|
% Stack: global fontname newfont newfont.
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% We might be defining a global font whose FontName
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% is a local string. This is weird, but legal,
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% and doesn't cause problems anywhere else:
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% to avoid any possible problems in this case, do a cvn.
|
|
% We might also be defining (as an alias) a global font
|
|
% whose FontName is a local non-string, if someone passed a
|
|
% garbage value to findfont. In this case, just don't
|
|
% call definefont at all.
|
|
2 index dup type /stringtype eq exch .gcheck or 1 index .gcheck not or
|
|
{ pop % <bool> <name> <dict>
|
|
1 index dup type /stringtype eq { cvn } if
|
|
% <bool> <name> <dict> <name1>
|
|
% HACK:
|
|
% We want to know whether we alias a font,
|
|
% because in this case its FontName to be replaced with the alias.
|
|
% There is no simple way to know that at this point.
|
|
% But if the original font has defaultfontname,
|
|
% we probably substitute it rather than alias.
|
|
% Using such condition as an approximation to the strong condition.
|
|
%
|
|
% Note it works wrongly if Fontmap maps something to defaultfontname like this :
|
|
% /Courier /NimbusMonL-Regu ;
|
|
% /Something /Courier ;
|
|
% The FontName of Something will not be /Something. It will be /Courier .
|
|
%
|
|
1 index /FontName get defaultfontname ne {
|
|
2 copy /FontName exch put
|
|
} if
|
|
1 index exch /.Alias exch put % <bool> <name> <dict>
|
|
dup dup /.OrigFont exch .growput
|
|
% Don't bind in definefont, since Level 2 redefines it.
|
|
/definefont .systemvar exec
|
|
}
|
|
{ .completefont pop exch pop
|
|
}
|
|
ifelse
|
|
exch .setglobal
|
|
} odef % so findfont will bind it
|
|
|
|
% Define .loadfontfile for loading a font. If we recognize Type 1 and/or
|
|
% TrueType fonts, gs_type1.ps and/or gs_ttf.ps will redefine this.
|
|
/.loadfontfile {
|
|
% According to Ed Taft, Adobe interpreters push userdict
|
|
% before loading a font, and pop it afterwards.
|
|
userdict begin
|
|
cvx exec
|
|
end
|
|
} bind def
|
|
/.setloadingfont {
|
|
//systemdict /.loadingfont 3 -1 roll .forceput
|
|
} .bind odef % .forceput must be bound and hidden
|
|
/.loadfont
|
|
{ % Some buggy fonts leave extra junk on the stack,
|
|
% so we have to make a closure that records the stack depth
|
|
% in a fail-safe way.
|
|
true .setloadingfont
|
|
{ /FAPI_hook_disable pop % gs_fapi accesses this with execstack_lookup - don't remove !
|
|
{{.loadfontfile} .execasresource} count 1 sub 2 .execn
|
|
count exch sub { pop } repeat
|
|
exit
|
|
} loop % this loop is a pattern for execstack_lookup, don't remove !
|
|
false .setloadingfont
|
|
} bind def
|
|
|
|
% Find an alternate font to substitute for an unknown one.
|
|
% We go to some trouble to parse the font name and extract
|
|
% properties from it. Later entries take priority over earlier.
|
|
/.substitutefaces [
|
|
% Guess at suitable substitutions for random unknown fonts.
|
|
[(Book) /NewCenturySchlbk 0]
|
|
[(Grot) /Helvetica 0]
|
|
[(Roman) /Times 0]
|
|
[(Chancery) /ZapfChancery-MediumItalic 0]
|
|
% If the family name appears in the font name,
|
|
% use a font from that family.
|
|
[(Arial) /Helvetica 0]
|
|
[(Avant) /AvantGarde 0]
|
|
[(Bookman) /Bookman 0]
|
|
[(Century) /NewCenturySchlbk 0]
|
|
[(Cour) /Courier 0]
|
|
[(Frut) /Helvetica 0]
|
|
[(Garamond) /Palatino 0]
|
|
[(Geneva) /Helvetica 0]
|
|
[(Helv) /Helvetica 0]
|
|
[(NewYork) /Bookman 0]
|
|
[(Pala) /Palatino 0]
|
|
[(Schlbk) /NewCenturySchlbk 0]
|
|
[(Swiss) /Helvetica 0]
|
|
[(Symbol) /Symbol 0]
|
|
[(Times) /Times 0]
|
|
% Substitute for Adobe Multiple Master fonts.
|
|
[(Minion) /Times 0]
|
|
[(Myriad) /Helvetica 0]
|
|
% If the font wants to be monospace, use Courier.
|
|
[(Monospace) /Courier 0]
|
|
[(Typewriter) /Courier 0]
|
|
% Define substitutes for the other Adobe PostScript 3 fonts.
|
|
% For some of them, the substitution is pretty bad!
|
|
[(Albertus) /Palatino 0]
|
|
[(AntiqueOlive) /Helvetica 0]
|
|
[(Bodoni) /NewCenturySchlbk 0]
|
|
[(Chicago) /Helvetica 2]
|
|
[(Clarendon) /Bookman 0]
|
|
[(Cooper) /NewCenturySchlbk 0]
|
|
[(Copperplate) /AvantGarde 0] % inappropriate, small-cap font
|
|
[(Coronet) /ZapfChancery-MediumItalic 0]
|
|
[(Eurostile) /Helvetica 0]
|
|
[(Geneva) /Courier 2] % should be fixed-pitch sans demi
|
|
[(GillSans) /Helvetica 2]
|
|
[(GillSans-Light) /Helvetica 0]
|
|
[(Goudy) /Palatino 0]
|
|
[(Hoefler) /NewCenturySchlbk 0]
|
|
[(Joanna) /Times 0]
|
|
[(LetterGothic) /Courier 0] % should be fixed-pitch sans
|
|
[(LubalinGraph-Book) /Bookman 2]
|
|
[(LubalinGraph-Demi) /Bookman 0]
|
|
[(Marigold) /ZapfChancery-MediumItalic 0]
|
|
[(MonaLisa-Recut) /Palatino 0] % inappropriate
|
|
[(Monaco) /Courier 2] % should be fixed-pitch sans demi
|
|
[(Optima) /Helvetica 0]
|
|
[(Oxford) /ZapfChancery-MediumItalic 0]
|
|
[(Tekton) /Helvetica 0]
|
|
[(Univers) /Helvetica 0]
|
|
] readonly def
|
|
/.substituteproperties [
|
|
[(It) 9] [(Oblique) 1]
|
|
[(Black) 2] [(Bd) 2] [(Bold) 2] [(bold) 2] [(Demi) 2] [(Heavy) 2] [(Sb) 2]
|
|
[(Cn) 4] [(Cond) 4] [(Narrow) 4] [(Pkg) 4] [(Compr) 4]
|
|
[(Serif) 8] [(Sans) -8]
|
|
] readonly def
|
|
/.fontnameproperties { % <int> <string|name> .fontnameproperties
|
|
% <int'>
|
|
.fontnamestring
|
|
.substituteproperties {
|
|
2 copy 0 get search {
|
|
pop pop pop dup length 1 sub 1 exch getinterval 3 -1 roll exch {
|
|
dup 0 ge { or } { neg not and } ifelse
|
|
} forall exch
|
|
} {
|
|
pop pop
|
|
} ifelse
|
|
} forall pop
|
|
} bind def
|
|
/.substitutefamilies mark
|
|
/AvantGarde
|
|
{/AvantGarde-Book /AvantGarde-BookOblique
|
|
/AvantGarde-Demi /AvantGarde-DemiOblique}
|
|
/Bookman
|
|
{/Bookman-Demi /Bookman-DemiItalic /Bookman-Light /Bookman-LightItalic}
|
|
/Courier
|
|
{/Courier /Courier-Oblique /Courier-Bold /Courier-BoldOblique}
|
|
/Helvetica
|
|
{/Helvetica /Helvetica-Oblique /Helvetica-Bold /Helvetica-BoldOblique
|
|
/Helvetica-Narrow /Helvetica-Narrow-Oblique
|
|
/Helvetica-Narrow-Bold /Helvetica-Narrow-BoldOblique}
|
|
/NewCenturySchlbk
|
|
{/NewCenturySchlbk-Roman /NewCenturySchlbk-Italic
|
|
/NewCenturySchlbk-Bold /NewCenturySchlbk-BoldItalic}
|
|
/Palatino
|
|
{/Palatino-Roman /Palatino-Italic /Palatino-Bold /Palatino-BoldItalic}
|
|
/Symbol
|
|
{/Symbol /Symbol /Symbol /Symbol}
|
|
/Times
|
|
{/Times-Roman /Times-Italic /Times-Bold /Times-BoldItalic}
|
|
/ZapfChancery-MediumItalic
|
|
{/ZapfChancery-MediumItalic}
|
|
.dicttomark readonly def
|
|
/.nametostring { % <name> .nametostring <string>
|
|
% <other> .nametostring <other>
|
|
dup type /nametype eq { .namestring } if
|
|
} bind def
|
|
/.fontnamestring { % <fontname> .fontnamestring <string|name>
|
|
dup type dup /nametype eq {
|
|
pop .namestring
|
|
} {
|
|
/stringtype ne { pop () } if
|
|
} ifelse
|
|
} bind def
|
|
/.substitutefontname { % <fontname> <properties> .substitutefontname
|
|
% <altname|null>
|
|
% Look for properties and/or a face name in the font name.
|
|
% If we find any, use Times (serif) or Helvetica (sans) as the
|
|
% base font; otherwise, use the default font.
|
|
% Note that the "substituted" font name may be the same as
|
|
% the requested one; the caller must check this.
|
|
exch .fontnamestring {
|
|
defaultfontname /Helvetica-Oblique /Helvetica-Bold /Helvetica-BoldOblique
|
|
/Helvetica-Narrow /Helvetica-Narrow-Oblique
|
|
/Helvetica-Narrow-Bold /Helvetica-Narrow-BoldOblique
|
|
/Times-Roman /Times-Italic /Times-Bold /Times-BoldItalic
|
|
/Helvetica-Narrow /Helvetica-Narrow-Oblique
|
|
/Helvetica-Narrow-Bold /Helvetica-Narrow-BoldOblique
|
|
} 3 1 roll
|
|
% Stack: facelist properties fontname
|
|
% Look for a face name.
|
|
.substitutefaces {
|
|
2 copy 0 get search {
|
|
pop pop pop
|
|
% Stack: facelist properties fontname [(pattern) family properties]
|
|
dup 2 get 4 -1 roll or 3 1 roll
|
|
1 get .substitutefamilies exch get
|
|
4 -1 roll pop 3 1 roll
|
|
} {
|
|
pop pop
|
|
} ifelse
|
|
} forall pop
|
|
1 index length mod get exec
|
|
} bind def
|
|
/.substitutefont { % <fontname> .substitutefont <altname>
|
|
dup 0 exch .fontnameproperties .substitutefontname
|
|
% Only accept fonts known in the Fontmap.
|
|
Fontmap 1 index known not { pop defaultfontname } if
|
|
} bind def
|
|
|
|
% If requested, make (and recognize) fake entries in FontDirectory for fonts
|
|
% present in Fontmap but not actually loaded. Thanks to Ray Johnston for
|
|
% the idea behind this code.
|
|
FAKEFONTS not { (%END FAKEFONTS) .skipeof } if
|
|
|
|
% We use the presence or absence of the FontMatrix key to indicate whether
|
|
% a font is real or fake. We must pop the arguments at the very end,
|
|
% so that stack protection will be effective.
|
|
|
|
/definefont { % <name> <font> definefont <font>
|
|
dup /FontMatrix known {
|
|
//definefont
|
|
} {
|
|
2 copy /FontName get findfont //definefont exch pop exch pop
|
|
} ifelse
|
|
} bind odef
|
|
|
|
/scalefont { % <font> <scale> scalefont <font>
|
|
1 index /FontMatrix known {
|
|
//scalefont
|
|
} {
|
|
1 index /FontName get findfont 1 index //scalefont
|
|
exch pop exch pop
|
|
} ifelse
|
|
} bind odef
|
|
|
|
/makefont { % <font> <matrix> makefont <font>
|
|
1 index /FontMatrix known {
|
|
//makefont
|
|
} {
|
|
1 index /FontName get findfont 1 index //makefont
|
|
exch pop exch pop
|
|
} ifelse
|
|
} bind odef
|
|
|
|
/setfont { % <font> setfont -
|
|
dup /FontMatrix known {
|
|
//setfont
|
|
} {
|
|
dup /FontName get findfont //setfont pop
|
|
} ifelse
|
|
} bind odef
|
|
|
|
%END FAKEFONTS
|
|
|
|
% Define findfont so it tries to load a font if it's not found.
|
|
% The Red Book requires that findfont be a procedure, not an operator,
|
|
% but it still needs to restore the stacks reliably if it fails,
|
|
% so we do all the work in an operator.
|
|
/.findfont { % <fontname> .findfont <font>
|
|
mark 1 index % <fontname> mark <fontname>
|
|
//systemdict begin .dofindfont
|
|
% <fontname> mark <alias> ... <font>
|
|
% Define any needed aliases.
|
|
counttomark 1 sub { .aliasfont } repeat end
|
|
% <fontname> mark <font>
|
|
exch pop exch pop
|
|
} odef
|
|
/findfont {
|
|
.findfont
|
|
} bind def
|
|
% Check whether the font name we are about to look for is already on the list
|
|
% of aliases we're accumulating; if so, cause an error.
|
|
/.checkalias % -mark- <alias1> ... <name> .checkalias <<same>>
|
|
{ counttomark 1 sub -1 1
|
|
{ index 1 index eq
|
|
{ pop QUIET not
|
|
{ (Unable to substitute for font.) = flush
|
|
} if
|
|
/findfont cvx /invalidfont signalerror
|
|
}
|
|
if
|
|
}
|
|
for
|
|
} bind def
|
|
% Get a (non-fake) font if present in a FontDirectory.
|
|
/.fontknownget % <fontdir> <fontname> .fontknownget <font> true
|
|
% <fontdir> <fontname> .fontknownget false
|
|
{ .knownget
|
|
{ FAKEFONTS
|
|
{ dup /FontMatrix known { true } { pop false } ifelse }
|
|
{ true }
|
|
ifelse
|
|
}
|
|
{ false
|
|
}
|
|
ifelse
|
|
} bind def
|
|
% This is the standard procedure for handling font substitution.
|
|
% Its location is per an Adobe newsgroup posting.
|
|
% It is called with the font name on the stack, standing in for findfont.
|
|
/.stdsubstfont { % mark <alias1> ... <fontname> .stdsubstfont mark <alias1> ... <aliasN> <font>
|
|
/SUBSTFONT where {
|
|
pop QUIET not {
|
|
(Substituting for font ) print dup =only
|
|
(.) = flush
|
|
} if
|
|
% No aliasing.
|
|
% This mode is incompatible with high level devices.
|
|
cleartomark mark defaultfontname
|
|
} {
|
|
dup .substitutefont
|
|
2 copy eq { pop defaultfontname } if
|
|
.checkalias
|
|
QUIET not {
|
|
SHORTERRORS {
|
|
(%%[) print 1 index =only
|
|
( not found, substituting ) print dup =only (]%%)
|
|
} {
|
|
(Substituting font ) print dup =only
|
|
( for ) print 1 index =only (.)
|
|
} ifelse = flush
|
|
} if
|
|
} ifelse
|
|
.dofindfont
|
|
} bind def
|
|
|
|
% Default font substitution does {pop /Courier} om many implementations.
|
|
% GS post-process font substitution in .stdsubstfont and uses {} for
|
|
% backward compatibility
|
|
$error /SubstituteFont { } put
|
|
|
|
% Scan the next directory on FONTPATH.
|
|
/.scannextfontdir { % - .scannextfontdir <bool>
|
|
% If we haven't scanned all the directories in
|
|
% FONTPATH, scan the next one.
|
|
null 0 1 FONTPATH length 1 sub {
|
|
FONTPATH 1 index get null ne { exch pop exit } if pop
|
|
} for dup null ne {
|
|
dup 0 eq { .scanfontbegin } if
|
|
FONTPATH 1 index get .scanfontdir
|
|
FONTPATH exch null put true
|
|
} {
|
|
pop false
|
|
} ifelse
|
|
} bind def
|
|
% Do the work of findfont, including substitution, defaulting, and
|
|
% scanning of FONTPATH.
|
|
/.dofindfont { % mark <fontname> .dofindfont % mark <alias> ... <font>
|
|
.tryfindfont not {
|
|
% We didn't find the font. If we haven't scanned
|
|
% all the directories in FONTPATH, scan the next one
|
|
% now and look for the font again.
|
|
.scannextfontdir {
|
|
% Start over with an empty alias list.
|
|
counttomark 1 sub { pop } repeat % mark <fontname>
|
|
.dofindfont
|
|
} {
|
|
% No more directories to scan. Try building the native
|
|
% font map entries if we haven't already done so.
|
|
systemdict /.nativefontmapbuilt get not { .buildnativefontmap } { false } ifelse {
|
|
% Same stack as at the beginning of .dofindfont.
|
|
.dofindfont % start over
|
|
} {
|
|
% No luck. Make sure we're not already
|
|
% looking for the default font.
|
|
QUIET not {
|
|
(Didn't find this font on the system!\n)
|
|
print
|
|
} if
|
|
dup defaultfontname eq {
|
|
QUIET not {
|
|
(Unable to load default font ) print
|
|
dup =only (! Giving up.) = flush
|
|
} if
|
|
/findfont cvx /invalidfont signalerror
|
|
} if
|
|
% Substitute for the font. Don't alias.
|
|
% Same stack as at the beginning of .dofindfont.
|
|
$error /SubstituteFont get exec
|
|
%
|
|
% igorm: I guess the surrounding code assumes that .stdsubstfont
|
|
% must ADD an alias to allow .checkalias and .findfont to work properly.
|
|
% Also I guess that a trailing recursion is
|
|
% used in .dofindfont and through .stdsubstfont
|
|
% just to represent a simple iteration,
|
|
% which accumulates the aliases after the mark.
|
|
.stdsubstfont
|
|
} ifelse
|
|
} ifelse
|
|
} if
|
|
} bind def
|
|
% Try to find a font using only the present contents of Fontmap.
|
|
/.tryfindfont { % <fontname> .tryfindfont <font> true
|
|
% <fontname> .tryfindfont false
|
|
.FontDirectory 1 index .fontknownget
|
|
{ % Already loaded
|
|
exch pop true
|
|
}
|
|
{ dup Fontmap exch .knownget not
|
|
{ % Unknown font name. Look for a file with the
|
|
% same name as the requested font.
|
|
.tryloadfont
|
|
}
|
|
{ % Try each element of the Fontmap in turn.
|
|
false exch % (in case we exhaust the list)
|
|
% Stack: fontname false fontmaplist
|
|
{ exch pop
|
|
dup type /nametype eq
|
|
{ % Font alias
|
|
.checkalias .tryfindfont exit
|
|
}
|
|
{ dup dup type dup /arraytype eq exch /packedarraytype eq or exch xcheck and
|
|
{ % Font with a procedural definition
|
|
exec % The procedure will load the font.
|
|
% Check to make sure this really happened.
|
|
.FontDirectory 1 index .knownget
|
|
{ exch pop true exit }
|
|
if
|
|
}
|
|
{ % Font file name
|
|
.loadfontloop { true exit } if
|
|
}
|
|
ifelse
|
|
}
|
|
ifelse false
|
|
}
|
|
forall
|
|
% Stack: font true -or- fontname false
|
|
{ true
|
|
}
|
|
{ % None of the Fontmap entries worked.
|
|
% Try loading a file with the same name
|
|
% as the requested font.
|
|
.tryloadfont
|
|
}
|
|
ifelse
|
|
}
|
|
ifelse
|
|
}
|
|
ifelse
|
|
} bind def
|
|
|
|
% any user of .putgstringcopy must use bind and executeonly
|
|
/.putgstringcopy % <dict> <name> <string> .putgstringcopy -
|
|
{ 2 index gcheck currentglobal
|
|
2 copy eq {
|
|
pop pop .forceput
|
|
} {
|
|
5 1 roll setglobal
|
|
dup length string copy
|
|
.forceput setglobal
|
|
} ifelse
|
|
} .bind odef % must be bound and hidden for .forceput
|
|
|
|
|
|
% Attempt to load a font from a file.
|
|
/.tryloadfont { % <fontname> .tryloadfont <font> true
|
|
% <fontname> .tryloadfont false
|
|
dup .nametostring
|
|
% Hack: check for the presence of the resource machinery.
|
|
/.genericrfn where {
|
|
pop
|
|
pop dup .fonttempstring /FontResourceDir getsystemparam .genericrfn
|
|
.loadfontloop {
|
|
//true
|
|
} {
|
|
dup .nametostring .loadfontloop
|
|
} ifelse
|
|
} {
|
|
.loadfontloop
|
|
} ifelse
|
|
} bind def
|
|
/.loadfontloop { % <fontname> <filename> .loadfontloop
|
|
% <font> true
|
|
% -or-
|
|
% <fontname> false
|
|
% See above regarding the use of 'loop'.
|
|
{ % Is the font name a string?
|
|
dup type /stringtype ne
|
|
{ QUIET not
|
|
{ (Can't find font with non-string name: ) print dup =only (.) = flush
|
|
}
|
|
if pop false exit
|
|
}
|
|
if
|
|
% Can we open the file?
|
|
findlibfile not
|
|
{ QUIET not
|
|
{ (Can't find \(or can't open\) font file ) print dup print
|
|
(.) = flush
|
|
}
|
|
if pop false exit
|
|
}
|
|
if
|
|
|
|
% Stack: fontname fontfilename fontfile
|
|
DISKFONTS
|
|
{ .currentglobal true .setglobal
|
|
2 index (r) file
|
|
FontFileDirectory exch 5 index exch .growput
|
|
.setglobal
|
|
}
|
|
if
|
|
QUIET not
|
|
{ (Loading ) print 2 index =only
|
|
( font from ) print 1 index print (... ) print flush
|
|
}
|
|
if
|
|
% If LOCALFONTS isn't set, load the font into local or global
|
|
% VM according to FontType; if LOCALFONTS is set, load the font
|
|
% into the current VM, which is what Adobe printers (but not
|
|
% DPS or CPSI) do.
|
|
LOCALFONTS { false } { /setglobal where } ifelse
|
|
{ pop /FontType .findfontvalue { 1 eq } { false } ifelse
|
|
% .setglobal, like setglobal, aliases FontDirectory to
|
|
% GlobalFontDirectory if appropriate. However, we mustn't
|
|
% allow the current version of .setglobal to be bound in,
|
|
% because it's different depending on language level.
|
|
.currentglobal exch /.setglobal .systemvar exec
|
|
% Remove the fake definition, if any.
|
|
.FontDirectory 3 index .undef
|
|
1 index (r) file .loadfont .FontDirectory exch
|
|
/.setglobal .systemvar exec
|
|
}
|
|
{ .loadfont .FontDirectory
|
|
}
|
|
ifelse
|
|
% Stack: fontname fontfilename fontdirectory
|
|
QUIET not
|
|
{ //systemdict /level2dict known
|
|
{ .currentglobal false .setglobal vmstatus
|
|
true .setglobal vmstatus 3 -1 roll pop
|
|
6 -1 roll .setglobal 5
|
|
}
|
|
{ vmstatus 3
|
|
}
|
|
ifelse { =only ( ) print } repeat
|
|
(done.) = flush
|
|
} if
|
|
|
|
% Check to make sure the font was actually loaded.
|
|
dup 3 index .fontknownget
|
|
{ dup /PathLoad 4 index //.putgstringcopy exec
|
|
4 1 roll pop pop pop true exit
|
|
} if
|
|
|
|
% Maybe the file had a different FontName.
|
|
% See if we can get a FontName from the file, and if so,
|
|
% whether a font by that name exists now.
|
|
exch dup % Stack: origfontname fontdirectory path path
|
|
(r) file .findfontname
|
|
{ % Stack: origfontname fontdirectory path filefontname
|
|
2 index 1 index .fontknownget
|
|
{ % Yes. Stack: origfontname fontdirectory path filefontname fontdict
|
|
dup 4 -1 roll /PathLoad exch //.putgstringcopy exec
|
|
% Stack: origfontname fontdirectory filefontname fontdict
|
|
3 -1 roll pop exch
|
|
% Stack: origfontname fontdict filefontname
|
|
QUIET
|
|
{ pop
|
|
}
|
|
{ (Using ) print =only
|
|
( font for ) print 1 index =only
|
|
(.) = flush
|
|
}
|
|
ifelse % Stack: origfontname fontdict
|
|
exch pop true exit
|
|
% Stack: fontdict
|
|
}
|
|
if pop % Stack: origfontname fontdirectory path
|
|
}
|
|
if pop pop % Stack: origfontname
|
|
|
|
% The font definitely did not load correctly.
|
|
QUIET not
|
|
{ (Loading ) print dup =only
|
|
( font failed.) = flush
|
|
} if
|
|
false exit
|
|
|
|
} loop % end of loop
|
|
|
|
} bind executeonly def % must be bound and hidden for .putgstringcopy
|
|
|
|
currentdict /.putgstringcopy .undef
|
|
|
|
% Define a procedure to load all known fonts.
|
|
% This isn't likely to be very useful.
|
|
/loadallfonts
|
|
{ Fontmap { pop findfont pop } forall
|
|
} bind def
|
|
|
|
% If requested, load all the fonts defined in the Fontmap into FontDirectory
|
|
% as "fake" fonts i.e., font dicts with only FontName and FontType defined.
|
|
% (We define FontType only for the sake of some questionable code in the
|
|
% Apple Printer Utility 2.0 font inquiry code.)
|
|
%
|
|
% Note that this procedure only creates fake fonts in the FontDirectory
|
|
% associated with the current VM. This is because in multi-context systems,
|
|
% creating the fake fonts in local VM leads to undesirable complications.
|
|
/.definefakefonts
|
|
{
|
|
}
|
|
{
|
|
(gs_fonts FAKEFONTS) VMDEBUG
|
|
Fontmap {
|
|
pop dup type /stringtype eq { cvn } if
|
|
.FontDirectory 1 index known not {
|
|
2 dict dup /FontName 3 index put
|
|
dup /FontType 1 put
|
|
.FontDirectory 3 1 roll put
|
|
} {
|
|
pop
|
|
} ifelse
|
|
} forall
|
|
}
|
|
FAKEFONTS { exch } if pop def % don't bind, .current/setglobal get redefined
|
|
|
|
% Install initial fonts from Fontmap.
|
|
/.loadinitialfonts
|
|
{ NOFONTMAP not
|
|
{ /FONTMAP where
|
|
{ pop [ FONTMAP .pathlist ]
|
|
{ dup VMDEBUG findlibfile
|
|
{ exch pop .loadFontmap }
|
|
{ /undefinedfilename signalerror }
|
|
ifelse
|
|
}
|
|
}
|
|
{ LIBPATH
|
|
{ defaultfontmap
|
|
false .file_name_combine
|
|
{
|
|
dup VMDEBUG
|
|
(r) { file } .internalstopped {
|
|
pop pop
|
|
defaultfontmap_content { .definefontmap } forall
|
|
} {
|
|
.loadFontmap
|
|
} ifelse
|
|
} {
|
|
pop pop
|
|
} ifelse
|
|
}
|
|
}
|
|
ifelse forall
|
|
}
|
|
if
|
|
userdict /defaultfontmap_content .undef
|
|
.definefakefonts % current VM is global
|
|
} def % don't bind, .current/setglobal get redefined
|
|
|
|
% ---------------- Synthetic font support ---------------- %
|
|
|
|
% Create a new font by modifying an existing one. paramdict contains
|
|
% entries with the same keys as the ones found in a Type 1 font;
|
|
% it should also contain enough empty entries to allow adding the
|
|
% corresponding non-overridden entries from the original font dictionary,
|
|
% including FID. If paramdict includes a FontInfo entry, this will
|
|
% also override the original font's FontInfo, entry by entry;
|
|
% again, it must contain enough empty entries.
|
|
|
|
% Note that this procedure does not perform a definefont.
|
|
|
|
/.makemodifiedfont % <fontdict> <paramdict> .makemodifiedfont <fontdict'>
|
|
{ exch
|
|
{ % Stack: destdict key value
|
|
1 index /FID ne
|
|
{ 2 index 2 index known
|
|
{ % Skip fontdict entry supplied in paramdict, but
|
|
% handle FontInfo specially.
|
|
1 index /FontInfo eq
|
|
{ 2 index 2 index get % new FontInfo
|
|
1 index % old FontInfo
|
|
{ % Stack: destdict key value destinfo key value
|
|
2 index 2 index known
|
|
{ pop pop }
|
|
{ 2 index 3 1 roll put }
|
|
ifelse
|
|
}
|
|
forall pop
|
|
}
|
|
if
|
|
}
|
|
{ % No override, copy the fontdict entry.
|
|
2 index 3 1 roll put
|
|
dup dup % to match pop pop below
|
|
}
|
|
ifelse
|
|
}
|
|
if
|
|
pop pop
|
|
} forall
|
|
} bind def
|
|
|
|
% Make a modified font and define it. Note that unlike definefont,
|
|
% this does not leave the font on the operand stack.
|
|
|
|
/.definemodifiedfont % <fontdict> <paramdict> .definemodifiedfont -
|
|
{ .makemodifiedfont
|
|
dup /FontName get exch definefont pop
|
|
} bind def
|