JezK
Edit File: gs_diskn.ps
% Copyright (C) 2001-2021 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. % % Initialization file for %disk device modifications % When this is run, systemdict is still writable, systemdict begin % Collect the list of searchable IODevices in SearchOrder % Efficiency here doesn't matter since we run this at the end % of gs_init and convert it to a static array. /.getsearchabledevs { % - .getsearchabledevs [ list_of_strings ] //systemdict /.searchabledevs .knownget not { .currentglobal //true .setglobal mark (*) { dup length string copy dup currentdevparams /Searchable .knownget { not { pop } if } { pop } ifelse } 8192 string /IODevice resourceforall ] % now process the array into correct SearchOrder 0 1 2 { mark exch 2 index { dup currentdevparams /SearchOrder get 2 index eq { exch } { pop } ifelse } forall % devices on the old list pop % make the array and sort it by name ] { lt } bind .sort exch } for % collect all devices with SearchOrder > 2 mark 2 index { dup currentdevparams /SearchOrder get 2 gt { exch } { pop } ifelse } forall ] exch pop % We now have 4 arrays on the stack, SO=0 SO=1 SO=2 SO>2 % make them into a single array mark 5 1 roll ] mark exch { { } forall } forall ] //systemdict /.searchabledevs 2 index .forceput exch .setglobal } executeonly if } .bind executeonly odef % must be bound and hidden for .forceput % Modify .putdevparams to force regeneration of .searchabledevs list /.putdevparams { % We could be smarter and check for %disk* device, but this % doesn't get run enough to justify the complication //.putdevparams //systemdict /.searchabledevs .forceundef } .bind executeonly odef % must be bound and hidden for .forceundef % ------ extend filenameforall to handle wildcards in %dev% part of pattern -------% /filenameforall { count 3 ge { 2 index (%) search { pop pop } { % no device specified, so search them all pop (*%) 3 index concatstrings % we need to suppress the device when we return the string % in order to match Adobe's behaviour with %disk devices. 4 -2 roll % the callers procedure [ { (%) search { pop pop (%) search { pop pop } if } if } /exec load 4 -1 roll % the callers procedure /exec load ] cvx 4 2 roll % put the modified procedure where it belongs } ifelse % extract device portion (up to end of string or next %) (%) search { exch pop } if % stack: opat proc scratch npat device dup (*) search { pop pop pop //true } { pop //false } ifelse 1 index (?) search { pop pop pop //true } { pop //false } ifelse or not { pop pop //filenameforall % device with no wildcard } { (%) concatstrings (%) exch concatstrings .getsearchabledevs % find all matching devices and add the rest of the search string mark exch { dup counttomark 1 add index .stringmatch { counttomark 2 add index concatstrings } { pop } ifelse } forall ] 3 1 roll pop pop 4 -1 roll pop % now we need to invoke filenameforall for each of the strings % in the array. We do this by building a procedure that is like % an unrolled 'forall' loop. We do this to get the parameters % for each filenameforall, since each execution will pop its % parameters, but we can't use the operand stack for storage % since each invocation must have the same operand stack. mark exch { counttomark dup 3 add index exch 2 add index /filenameforall load } forall ] cvx 3 1 roll pop pop exec % run our unrolled loop } ifelse } { //filenameforall % not enough parameters -- just let it fail } ifelse } odef % redefine file to search all devices in order /file { dup 0 get (r) 0 get eq dup { pop //false % success code 2 index 0 get 37 eq { [ () ] } { .getsearchabledevs } ifelse { 3 index concatstrings % prepend the device { 2 index //file } //.internalstopped exec not { 4 1 roll pop pop pop //true exit % exit with success } { pop pop } ifelse } forall } if not { % just let standard file operator handle things //file } if } bind odef % redefine deletefile to search all devices in order /deletefile { //false % success code 1 index 0 get 37 eq { [ () ] } { .getsearchabledevs } ifelse { 2 index concatstrings % prepend the device { //deletefile } //.internalstopped exec exch pop not { pop //true exit % exit with success } if } forall not { $error /errorname get /deletefile .systemvar exch signalerror } if } bind odef % redefine status to search all devices in order /status { dup type /stringtype eq { //false % success code 1 index 0 get 37 eq { [ () ] } { .getsearchabledevs } ifelse { 2 index concatstrings % prepend the device { //status } //.internalstopped exec not { { //true 7 -2 roll pop pop //true exit } % exit with success if } if } forall % If we made it this far, no devices were found to status the file % clean up to return 'false' exch pop } { //status } ifelse } bind odef % Also redefine renamefile to search all devices in order /renamefile { //false % success code 2 index 0 get 37 eq { [ () ] } { .getsearchabledevs } ifelse { dup 4 index concatstrings % prepend the device { (r) //file } //.internalstopped exec not { closefile exch pop //true exit % exit with success } { pop pop } ifelse } forall not { $error /errorname get /renamefile .systemvar exch signalerror } if 3 -1 roll concatstrings exch //renamefile } bind odef % redefine devforall to process devices in numeric order % Spec's for 'devforall' are unclear, but font downloaders may expect this /devforall { % <proc> <scratch> devforall - [ { dup length string copy } 2 index //devforall ] % stack: proc scratch array_of_device_names { lt } .sort % We don't really invoke the procedure with the scratch string % but rather with the strings from our array exch pop exch forall } odef end % systemdict