Current File : //usr/share/ghostscript/Resource/Init/gs_cidfm.ps
% Copyright (C) 2001-2018 Artifex Software, Inc.
% All Rights Reserved.
%
% This software is provided AS-IS with no warranty, either express or
% implied.
%
% This software is distributed under license and may not be copied,
% modified or distributed except as expressly authorized under the terms
% of the license contained in the file LICENSE in this distribution.
%
% Refer to licensing information at http://www.artifex.com or contact
% Artifex Software, Inc., 1305 Grant Avenue - Suite 200, Novato,
% CA 94945, U.S.A., +1(415)492-9861, for further information.
%
% Redefine CIDFont category with cidfmap .
languagelevel 2 .setlanguagelevel
4 dict begin
/CategoryName /CIDFont def
/MapFileName (cidfmap) def
/IsMyRecord % <raw_record> -> <raw_record> bool
{ % Only for client's needs.
dup type /stringtype eq exch
dup type /nametype eq 3 -1 roll or
} bind def
/RecordVirtualMethods 3 dict begin
/MakeInstance % <Name> <record> MakeInstance <Name> <Instance> <size>
{ % We know that currentdict is the category.
/Substitute get dup type /stringtype eq
{
(r) file dup cvx exec closefile
dup
} if
FindResource % /Name <<CIDFont>>
dup length dict copy % /Name <<CIDFont>>
1 index ResourceStatus pop exch pop % /Name <<CIDFont>> size
} bind def
/GetFilePath % <scratch> <Name> <record> GetFilePath <filepath>
{ % We know that currentdict is the category.
exch pop
/Substitute get dup type /stringtype eq not
{
exch ResourceFileName
} if
} bind def
/GetSize % <Name> <record> GetSize <size>
{ % We know that currentdict is the category.
dup /Substitute get dup type /stringtype eq
{
% The simplest solution is to instantiate the resource
pop //MakeInstance exec
3 1 roll pop pop
}
{
exch pop
ResourceStatus {
exch pop exch pop
} {
/undefinedresource signalerror
} ifelse
}ifelse
} bind def
/GetCSI % <record> GetCSI null
% <record> GetCSI dict
{ % We know that currentdict is the category.
RESMPDEBUG { (cidfm GetCSI beg ) = } if
dup /Substitute get dup type /stringtype eq
{
pop
dup /Name get exch //MakeInstance exec
pop exch pop
/CIDSystemInfo get
}
{
exch pop % /Name
GetCIDSystemInfoFromMap
} ifelse
RESMPDEBUG { (cidfm GetCSI end ) print dup = } if
} bind def
/IsActive % <record> IsActive <bool>
{ pop //true
} bind def
currentdict end def
% This is the default definition of our fallback CIDFont
/DefaultCIDFallBack
<<
/Path
systemdict /CIDFSubstPath .knownget
{
(/) concatstrings
}
{
(CIDFSUBSTPATH) getenv
{
(/) concatstrings
}
{
currentsystemparams /GenericResourceDir get (CIDFSubst/) concatstrings
} ifelse
} ifelse
systemdict /CIDFSubstFont .knownget not
{
(CIDFSUBSTFONT) getenv not
{
(DroidSansFallback.ttf)
} if
} if
concatstrings
% The CSI data just has to be valid, the substition machinery will
% generally overwrite it with appropriate values for the missing font.
/CSI [(Identity) 0]
/RecordVirtualMethods //RecordVirtualMethods
/FileType /TrueType
(CIDFSUBSTFONTID) getenv
{
/SubfontID exch cvi
} if
>> def
/VerifyMap % <raw_map> VerifyMap -
{
% Remove any mappings for which we cannot find the font file
dup
{
% if we have a name1->name2 mapping, follow the "trail",
% so if the name2 mapping is known in the .map dict, retrieve
% that map value and loop round until we either reach a map
% which references a TTF (i.e. a dictionary record) or we have
% a name not known in the .map, in which case we have to resort
% to the normal Postscript "resourcestatus".
{
dup type /nametype eq
{
dup 3 index exch .knownget
{ exch pop }
{
/CIDFont resourcestatus
{ pop pop pop }
{ 2 index exch .undef }
ifelse
exit
} ifelse
}
{
dup type /dicttype eq
{
/Path .knownget
{
.libfile
{closefile pop}
{
{(r) file} .internalstopped
{pop pop 2 index exch .undef}
{closefile pop} ifelse
} ifelse
}
{2 index exch .undef}
ifelse
exit
} if
} ifelse
} loop
} forall
% This is where we insert the default fallback into the map
% checking first to see if there is a user specified alternative
dup /CIDFallBack known not{
//DefaultCIDFallBack dup /Path get status
{
pop pop pop pop
/CIDFallBack exch 2 index 3 1 roll put
}
{
pop
}ifelse
} if
% Checks for vicious substitution cycles.
dup length dict copy % <<map>>
dup length dict % <<map>> <<temp>>
{ % Choose a random record :
//true 2 index { % <<map>> <<temp>> true /Name /Subs
3 2 roll pop //false exit % <<map>> <<temp>> /Name /Subs false
} forall
{ exit % <<map>> <<temp>>
} if % <<map>> <<temp>> /Name /Subs
% Move the substitution chain to <<temp>>, checking for a cycle :
3 index 2 index undef % <<map>> <<temp>> /Name /Subs
exch 2 index exch 0 put % <<map>> <<temp>> /Subs
{ //IsMyRecord exec not {
% Not a substitution, the chain terminates.
pop exit % <<map>> <<temp>>
} if % <<map>> <<temp>> /Subs
1 index 1 index known {
(Vicious substitution cycle in map file with the entry ) print =string cvs print ( .) =
/VerifyMap cvx /undefinedresource signalerror
} if % <<map>> <<temp>> /Subs
1 index 1 index 0 put
dup 3 index exch .knownget not { % <<map>> <<temp>> /Subs
% No more substitutions, the chain terminates.
pop exit % <<map>> <<temp>>
} if % <<map>> <<temp>> /Subs /Subs1
exch % <<map>> <<temp>> /Subs1 /Subs
3 index exch undef % <<map>> <<temp>> /Subs1
} loop
% Not cycled, now purge the <<temp>> :
{ % Choose a random record :
//true 1 index { % <<map>> <<temp>> true /Name /Subs
3 2 roll pop //false exit % <<map>> <<temp>> /Name /Subs false
} forall
{ exit % <<map>> <<temp>>
} if % <<map>> <<temp>> /Name /Subs
% Remove it :
pop 1 index exch undef % <<map>> <<temp>>
} loop
} loop
pop pop
} bind def
/PreprocessRecord % <map> <Name> <raw_record> PreprocessRecord <map> <Name> <record> <bool>
{
//IsMyRecord exec {
1 dict begin
/Substitute exch def
dup /Name exch def
/RecordVirtualMethods //RecordVirtualMethods def
currentdict end
//true
} {
//false
} ifelse
} bind def
currentdict end
/MappedCategoryRedefiner /ProcSet findresource /Redefine get exec
.setlanguagelevel
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