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+% Copyright (C) 1990, 2000 Aladdin Enterprises. All rights reserved.
+%
+% This program is free software; you can redistribute it and/or modify it
+% under the terms of the GNU General Public License as published by the
+% Free Software Foundation; either version 2 of the License, or (at your
+% option) any later version.
+%
+% This program is distributed in the hope that it will be useful, but
+% WITHOUT ANY WARRANTY; without even the implied warranty of
+% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+% Public License for more details.
+%
+% You should have received a copy of the GNU General Public License along
+% with this program; if not, write to the Free Software Foundation, Inc.,
+% 59 Temple Place, Suite 330, Boston, MA, 02111-1307.
+
+% $Id: gs_fonts.ps,v 1.13.2.3.2.1 2003/04/12 14:02:38 giles Exp $
+% Font initialization and management code.
+
+% Define the default font.
+/defaultfontname /Courier def
+
+% Define the name of the font map file.
+/defaultfontmap (Fontmap) def
+
+% ------ End of editable parameters ------ %
+
+% Define the UniqueIDs and organization XUID assigned to Aladdin.
+% UniqueIDs 5,066,501 - 5,066,580 are assigned as follows:
+% 01 and 02 for shareware Cyrillic
+% 33 through 67 for Type 1 versions of the Hershey fonts
+% UniqueIDs 5,115,501 - 5,115,600 are currently unassigned.
+/AladdinEnterprisesXUID 107 def
+
+% If SUBSTFONT is defined, make it the default font.
+/SUBSTFONT where { pop /defaultfontname /SUBSTFONT load def } if
+
+% Define a reliable way of accessing FontDirectory in systemdict.
+/.FontDirectory
+{ /FontDirectory .systemvar
+} .bind odef
+
+% If DISKFONTS is true, we load individual CharStrings as they are needed.
+% (This is intended primarily for machines with very small memories.)
+% In this case, we define another dictionary, parallel to FontDirectory,
+% that retains an open file for every font loaded.
+/FontFileDirectory 10 dict def
+
+% Define a temporary string for local use, since using =string
+% interferes with some PostScript programs.
+/.fonttempstring 128 string def
+
+% Split up a search path into individual directories or files.
+/.pathlist % <path> .pathlist <dir1|file1> ...
+ { { dup length 0 eq { pop exit } if
+ .filenamelistseparator search not { exit } if
+ exch pop exch
+ }
+ loop
+ } bind def
+
+% Load a font name -> font file name map.
+userdict /Fontmap .FontDirectory maxlength dict put
+/.loadFontmap { % <file> .loadFontmap -
+ % We would like to simply execute .definefontmap as we read,
+ % but we have to maintain backward compatibility with an older
+ % specification that makes later entries override earlier
+ % ones within the same file.
+ 50 dict exch .readFontmap
+ { .definefontmap } forall
+} bind def
+/.readFontmap { % <dict> <file> .readFontmap <dict>
+ { dup token not { closefile exit } if
+ % stack: dict file fontname
+ % This is a hack to get around the absurd habit of MS-DOS editors
+ % of adding an EOF character at the end of the file.
+ dup (\032) eq { pop closefile exit } if
+ 1 index token not
+ { (Fontmap entry for ) print dup =only
+ ( has no associated file or alias name! Giving up.) = flush
+ {.readFontmap} 0 get 1 .quit
+ } if
+ dup type dup /stringtype eq exch /nametype eq or not
+ { (Fontmap entry for ) print 1 index =only
+ ( has an invalid file or alias name! Giving up.) = flush
+ {.readFontmap} 0 get 1 .quit
+ } if
+ % stack: dict file fontname filename|aliasname
+ 1 index type /stringtype eq
+ 1 index type /nametype eq and 1 index xcheck and
+ 1 index /run eq 2 index /.runlibfile eq or and {
+ % This is an inclusion entry.
+ pop findlibfile { exch pop } { file } ifelse
+ 2 index exch .readFontmap pop
+ } {
+ % This is a real entry.
+ % Read and pop tokens until a semicolon.
+ { 2 index token not
+ { (Fontmap entry for ) print 1 index =only
+ ( ends prematurely! Giving up.) = flush
+ {.loadFontmap} 0 get 1 .quit
+ } if
+ dup /; eq { pop 3 index 3 1 roll .growput exit } if
+ pop
+ } loop
+ } ifelse
+ } loop
+} bind def
+% Add an entry in Fontmap. We redefine this if the Level 2
+% resource machinery is loaded.
+/.definefontmap % <fontname> <file|alias> .definefontmap -
+ { % Since Fontmap is global, make sure the values are storable.
+ .currentglobal 3 1 roll true .setglobal
+ dup type /stringtype eq
+ { dup .gcheck not { dup length string copy } if
+ }
+ if
+ Fontmap 3 -1 roll 2 copy .knownget
+ { % Add an element to the end of the existing value,
+ % unless it's the same as the current last element.
+ mark exch aload pop counttomark 4 add -1 roll
+ 2 copy eq { cleartomark pop pop } { ] readonly .growput } ifelse
+ }
+ { % Make a new entry.
+ mark 4 -1 roll ] readonly .growput
+ }
+ ifelse .setglobal
+ } bind def
+
+% Parse a font file just enough to find the FontName or FontType.
+/.findfontvalue { % <file> <key> .findfontvalue <value> true
+ % <file> <key> .findfontvalue false
+ % Closes the file in either case.
+ exch dup read not { -1 } if
+ 2 copy unread 16#80 eq {
+ dup (xxxxxx) readstring pop pop % skip .PFB header
+ } if
+ { % Stack: key file
+ % Protect ourselves against syntax errors here.
+ dup { token } stopped { pop false exit } if
+ not { false exit } if % end of file
+ dup /eexec eq { pop false exit } if % reached eexec section
+ dup /Subrs eq { pop false exit } if % Subrs without eexec
+ dup /CharStrings eq { pop false exit } if % CharStrings without eexec
+ dup 3 index eq
+ { xcheck not { dup token exit } if } % found key
+ { pop }
+ ifelse
+ } loop
+ % Stack: key file value true (or)
+ % Stack: key file false
+ dup { 4 } { 3 } ifelse -2 roll closefile pop
+} bind def
+/.findfontname
+ { /FontName .findfontvalue
+ } bind def
+
+% If there is no FONTPATH, try to get one from the environment.
+NOFONTPATH { /FONTPATH () def } if
+/FONTPATH where
+ { pop }
+ { /FONTPATH (GS_FONTPATH) getenv not { () } if def }
+ifelse
+FONTPATH length 0 eq { (%END FONTPATH) .skipeof } if
+/FONTPATH [ FONTPATH .pathlist ] def
+
+% Scan directories looking for plausible fonts. "Plausible" means that
+% the file begins with %!PS-AdobeFont or %!FontType1, or with \200\001
+% followed by four arbitrary bytes and then either of these strings.
+% To speed up the search, we skip any file whose name appears in
+% the Fontmap (with any extension and upper/lower case variation) already,
+% and any file whose extension definitely indicates it is not a font.
+%
+% NOTE: The current implementation of this procedure is somewhat Unix/DOS-
+% specific. It assumes that '/' and '\' are directory separators, and that
+% the part of a file name following the last '.' is the extension.
+%
+/.lowerstring % <string> .lowerstring <lowerstring>
+ { 0 1 2 index length 1 sub
+ { 2 copy get dup 65 ge exch 90 le and
+ { 2 copy 2 copy get 32 add put }
+ if pop
+ }
+ for
+ } bind def
+/.splitfilename { % <dir.../base.extn> .basename <base> <extn>
+ % Make the file name read-only to detect aliasing bugs.
+ % We really don't like doing this, but we've had one
+ % such bug already.
+ readonly {
+ (/) search { true } { (\\) search } ifelse { pop pop } { exit } ifelse
+ } loop
+ dup { (.) search { pop pop } { exit } ifelse } loop
+ 2 copy eq {
+ pop ()
+ } {
+ exch dup length 2 index length 1 add sub 0 exch getinterval exch
+ } ifelse
+} bind def
+/.scanfontdict 1 dict def % establish a binding
+/.scanfontbegin
+ { % Construct the table of all file names already in Fontmap.
+ currentglobal true setglobal
+ .scanfontdict dup maxlength Fontmap length 2 add .max .setmaxlength
+ Fontmap
+ { exch pop
+ { dup type /stringtype eq
+ { .splitfilename pop .fonttempstring copy .lowerstring cvn
+ .scanfontdict exch true put
+ }
+ { pop
+ }
+ ifelse
+ }
+ forall
+ }
+ forall
+ setglobal
+ } bind def
+/.scanfontskip mark
+ % Strings are converted to names anyway, so....
+ /afm true
+ /bat true
+ /c true
+ /cmd true
+ /com true
+ /dir true
+ /dll true
+ /doc true
+ /drv true
+ /exe true
+ /fon true
+ /fot true
+ /h true
+ /o true
+ /obj true
+ /pfm true
+ /pss true % Adobe Multiple Master font instances
+ /txt true
+.dicttomark def
+/.scan1fontstring 128 string def
+% %%BeginFont: is not per Adobe documentation, but a few fonts have it.
+/.scanfontheaders [(%!PS-Adobe*) (%!FontType*) (%%BeginFont:*)] def
+0 .scanfontheaders { length .max } forall 6 add % extra for PFB header
+/.scan1fontfirst exch string def
+/.scanfontdir % <dirname> .scanfontdir -
+ { currentglobal exch true setglobal
+ QUIET not { (Scanning ) print dup print ( for fonts...) print flush } if
+ (*) 1 index .filenamedirseparator
+ dup (\\) eq { pop (\\\\) } if % double \ for pattern match
+ exch concatstrings concatstrings
+ 0 0 0 4 -1 roll % found scanned files
+ { % stack: <fontcount> <scancount> <filecount> <filename>
+ exch 1 add exch % increment filecount
+ dup .splitfilename .fonttempstring copy .lowerstring
+ % stack: <fontcount> <scancount> <filecount+1> <filename>
+ % <BASE> <ext>
+ .scanfontskip exch known exch .scanfontdict exch known or
+ { pop
+ % stack: <fontcount> <scancount> <filecount+1>
+ }
+ { 3 -1 roll 1 add 3 1 roll
+ % stack: <fontcount> <scancount+1> <filecount+1> <filename>
+ dup (r) { file } .internalstopped
+ { pop pop null ()
+ % stack: <fontcount> <scancount+1> <filecount+1> <filename>
+ % null ()
+ }
+ {
+ % On some platforms, the file operator will open directories,
+ % but an error will occur if we try to read from one.
+ % Handle this possibility here.
+ dup .scan1fontfirst { readstring } .internalstopped
+ { pop pop () }
+ { pop }
+ ifelse
+ % stack: <fontcount> <scancount+1> <filecount+1>
+ % <filename> <file> <header>
+ }
+ ifelse
+ % Check for PFB file header.
+ dup (\200\001????*) .stringmatch
+ { dup length 6 sub 6 exch getinterval }
+ if
+ % Check for font file headers.
+ false .scanfontheaders
+ { 2 index exch .stringmatch or
+ }
+ forall exch pop
+ { % stack: <fontcount> <scancount+1> <filecount+1> <filename>
+ % <file>
+ dup 0 setfileposition .findfontname
+ { dup Fontmap exch known
+ { pop pop
+ }
+ { exch copystring exch
+ DEBUG { ( ) print dup =only flush } if
+ 1 index .definefontmap
+ .splitfilename pop true .scanfontdict 3 1 roll .growput
+ % Increment fontcount.
+ 3 -1 roll 1 add 3 1 roll
+ }
+ ifelse
+ }
+ { pop
+ }
+ ifelse
+ }
+ % .findfontname will have done a closefile in the above case.
+ { dup null eq { pop } { closefile } ifelse pop
+ }
+ ifelse
+ }
+ ifelse
+ }
+ .scan1fontstring filenameforall
+ QUIET
+ { pop pop pop }
+ { ( ) print =only ( files, ) print =only ( scanned, ) print
+ =only ( new fonts.) = flush
+ }
+ ifelse
+ setglobal
+ } bind def
+
+%END FONTPATH
+
+% Create the dictionary that registers the .buildfont procedure (called by
+% definefont) for each FontType.
+/buildfontdict 20 dict def
+
+% Register Type 3 fonts, which are always supported, for definefont.
+buildfontdict 3 /.buildfont3 cvx put
+
+% Register Type 0 fonts if they are supported. Strictly speaking,
+% we should do this in its own file (gs_type0.ps), but since this is
+% the only thing that would be in that file, it's simpler to put it here.
+/.buildfont0 where { pop buildfontdict 0 /.buildfont0 cvx put } if
+
+% Define definefont. This is a procedure built on a set of operators
+% that do all the error checking and key insertion.
+/.growfontdict
+ { % Grow the font dictionary, if necessary, to ensure room for an
+ % added entry, making sure there is at least one slot left for FID.
+ dup maxlength 1 index length sub 2 lt
+ { dup dup wcheck
+ { .growdict }
+ { .growdictlength dict .copydict }
+ ifelse
+ }
+ { dup wcheck not { dup maxlength dict .copydict } if
+ }
+ ifelse
+ } bind def
+/.completefont {
+ { % Check for disabled platform fonts.
+ NOPLATFONTS
+ { % Make sure we leave room for FID.
+ .growfontdict dup /ExactSize 0 put
+ }
+ { % Hack: if the Encoding looks like it might be the
+ % Symbol or Dingbats encoding, load those now (for the
+ % benefit of platform font matching) just in case
+ % the font didn't actually reference them.
+ % Note that some types of font don't have an Encoding.
+ dup /Encoding .knownget {
+ dup length 65 ge {
+ 64 get
+ dup /congruent eq { SymbolEncoding pop } if
+ /a9 eq { DingbatsEncoding pop } if
+ } {
+ pop
+ } ifelse
+ } if
+ }
+ ifelse
+ true exch
+ % If this is a CIDFont, CIDFontType takes precedence
+ % over FontType.
+ dup /CIDFontType known {
+ /.buildcidfont where {
+ pop exch not exch % true => false
+ } if
+ } if
+ exch {
+ dup /FontType get //buildfontdict exch get exec
+ } {
+ .buildcidfont
+ } ifelse
+
+ DISKFONTS
+ { FontFileDirectory 2 index known
+ { dup /FontFile FontFileDirectory 4 index get .growput
+ }
+ if
+ }
+ if
+ readonly % stack: name fontdict
+ } stopped { /invalidfont signalerror } if
+} bind odef
+/definefont
+ { .completefont
+ % If the current allocation mode is global, also enter
+ % the font in LocalFontDirectory.
+ .currentglobal
+ { //systemdict /LocalFontDirectory .knownget
+ { 2 index 2 index .growput }
+ if
+ }
+ if
+ dup .FontDirectory 4 -2 roll .growput
+ % If the font originated as a resource, register it.
+ currentfile .currentresourcefile eq { dup .registerfont } if
+ } odef
+
+% Define a procedure for defining aliased fonts.
+% We use this only for explicitly aliased fonts, not substituted fonts:
+% we think this matches the observed behavior of Adobe interpreters.
+/.aliasfont % <name> <font> .aliasfont <newFont>
+ { .currentglobal 3 1 roll dup .gcheck .setglobal
+ dup length 2 add dict
+ dup 3 -1 roll { 1 index /FID eq { pop pop } { put dup } ifelse } forall
+ % Stack: global fontname newfont newfont.
+ % We might be defining a global font whose FontName
+ % is a local string. This is weird, but legal,
+ % and doesn't cause problems anywhere else:
+ % 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
+ { /FontName 3 index dup type /stringtype eq { cvn } if put
+ % 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
+/.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.
+ {{.loadfontfile} .execasresource} count 1 sub 2 .execn
+ count exch sub { pop } repeat
+ } 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 {
+ mark 1 index
+ //systemdict begin .dofindfont
+ % Define any needed aliases.
+ counttomark 1 sub { .aliasfont } repeat end
+ 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 <font>
+ /SUBSTFONT where {
+ pop QUIET not {
+ (Substituting for font ) print dup =only
+ (.) = flush
+ } if
+ % No aliasing.
+ 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
+ % Remove all the accumulated aliases.
+ counttomark 1 add 1 roll cleartomark mark exch
+ } ifelse
+ .dofindfont
+} bind def
+$error /SubstituteFont { .stdsubstfont } 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 { % <fontname> .dofindfont <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
+ .dofindfont
+ } {
+ % No luck. Make sure we're not already
+ % looking for the default font.
+ 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.
+ $error /SubstituteFont get exec
+ } 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
+
+% 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
+ 2 copy .fonttempstring /FontResourceDir getsystemparam .genericrfn
+ .loadfontloop {
+ exch pop exch pop 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
+ { 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 (r) file .findfontname
+ { 2 copy .fontknownget
+ { % Yes. Stack: origfontname fontdirectory filefontname fontdict
+ 3 -1 roll pop exch
+ QUIET
+ { pop
+ }
+ { (Using ) print =only
+ ( font for ) print 1 index =only
+ (.) = flush
+ }
+ ifelse true exit
+ }
+ if pop
+ }
+ if pop
+
+ % The font definitely did not load correctly.
+ QUIET not
+ { (Loading ) print dup =only
+ ( font failed.) = flush
+ } if
+ false exit
+
+ } loop % end of loop
+
+ } bind def
+
+% 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 1 index .filenamedirseparator
+ exch concatstrings concatstrings dup VMDEBUG
+ (r) { file } .internalstopped
+ { pop pop } { .loadFontmap } ifelse
+ }
+ }
+ ifelse forall
+ }
+ if
+ .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