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