home *** CD-ROM | disk | FTP | other *** search
- % Copyright (C) 1995, 1996, 1997 Aladdin Enterprises. All rights reserved.
- %
- % This file is part of Aladdin Ghostscript.
- %
- % Aladdin Ghostscript is distributed with NO WARRANTY OF ANY KIND. No author
- % or distributor accepts any responsibility for the consequences of using it,
- % or for whether it serves any particular purpose or works at all, unless he
- % or she says so in writing. Refer to the Aladdin Ghostscript Free Public
- % License (the "License") for full details.
- %
- % Every copy of Aladdin Ghostscript must include a copy of the License,
- % normally in a plain ASCII text file named PUBLIC. The License grants you
- % the right to copy, modify and redistribute Aladdin Ghostscript, but only
- % under certain conditions described in the License. Among other things, the
- % License requires that the copyright notice and this notice be preserved on
- % all copies.
-
- % ProcSet for implementing CMap resources.
- % When this is run, systemdict is still writable.
-
- % NOTE: Rearranged fonts are not implemented yet.
-
- % ---------------- Public operators ---------------- %
-
- % composefont doesn't appear in CMap files -- it's documented in
- % the "PostScript Language Reference Manual Supplement".
- /composefont % <name> <cmap|cmapname> <fonts> composefont <font>
- { 10 dict begin
- 1 index dup type /dicttype ne { /CMap findresource } if
- /CMap exch def
- /Encoding [ 0 1 4 index length 1 sub { } for ] def
- /FDepVector 1 index def
- /FMapType 9 def
- /FontMatrix matrix def
- /FontName 3 index def
- /CMap load /WMode .knownget { /WMode exch def } if
- /FontType 0 def
- pop pop currentdict end /Font defineresource
- } bind odef
-
- % ---------------- CMap operators ---------------- %
-
- 30 dict begin
-
- % Our internal .CodeMaps structure is an array of two arrays: array 0
- % is the map for defined characters, array 1 is the map for notdefs.
- % Both are multi-level arrays indexed by the successive bytes of the
- % character code. Each value is either a sub-array, null, a character name,
- % a CID (an integer), or a character code (expressed as a byte string).
- % All of the arrays are read-only after they have been built.
- %
- % Note that the code in zfcmap.c that constructs the C structures from
- % the PostScript structures has intimate knowledge of the above format.
-
- /.getmap { .CodeMaps exch get } bind def
- /.putmap { .CodeMaps exch 3 -1 roll put } bind def
-
- % ------ Font-level operators ------ %
-
- /begincmap % - begincmap -
- { /.CodeMaps [256 array 256 array] def
- } bind def
- /endcmap % - endcmap -
- { /.CodeMaps .CodeMaps .endmap def
- /CodeMap null def % for .buildcmap
- currentdict end .buildcmap begin
- } bind def
-
- /begincodespacerange % <count> begincodespacerange -
- { pop mark
- } bind def
- /endcodespacerange % <code_lo> <code_hi> ... endcodespacerange -
- { counttomark 2 idiv
- { .CodeMaps { 3 copy .addcodespacerange pop } forall pop pop
- } repeat pop
- } bind def
-
- /.addcodespacerange % <code_lo> <code_hi> <map> .addcodespacerange -
- { 2 index length 1 eq
- { 2 { 3 -1 roll 0 get } repeat 1 exch
- { 2 copy 0 put pop } for pop
- }
- { 2 index 0 get 1 3 index 0 get
- 6 -2 roll
- 2 { 1 1 index length 1 sub getinterval 6 1 roll } repeat
- % Stack: lo hi map lo0 1 hi0
- { 2 copy get null eq { 2 copy 256 array put } if
- 4 copy get .addcodespacerange pop
- }
- for pop pop pop
- }
- ifelse
- } bind def
- /.endmap % <map> .endmap <map>
- { dup type /arraytype eq { dup { .endmap exch } forall astore readonly } if
- } bind def
-
- /usecmap % <CMap_name> usecmap -
- { /CMap findresource
- dup length dict .copydict
- currentdict end exch .copydict begin
- } bind def
-
- % ------ Rearranged font operators ------ %
-
- /beginrearrangedfont % <font_name> <font*> beginrearrangedfont -
- { (NOT IMPLEMENTED YET.\n) print flush
- } bind def
- /endrearrangedfont % - endrearrangedfont -
- { (NOT IMPLEMENTED YET.\n) print flush
- } bind def
-
- /usefont % <fontID> usefont -
- { (NOT IMPLEMENTED YET.\n) print flush
- } bind def
-
- /beginusematrix % <fontID> beginusematrix -
- { (NOT IMPLEMENTED YET.\n) print flush
- } bind def
- /endusematrix % <matrix> endusematrix -
- { (NOT IMPLEMENTED YET.\n) print flush
- } bind def
-
- % ------ Character name/code selector operators ------ %
-
- /beginbfchar % <count> beginbfchar -
- { pop mark
- } bind def
- /endbfchar % <code> <to_code|charname> ... endbfchar
- { 0 .getmap .endmapchar 0 .putmap
- } bind def
-
- /beginbfrange % <count> beginbfrange -
- { pop mark
- } bind def
- /endbfrange % <code_lo> <code_hi> <to_code|(charname*)> ...
- % endbfrange -
- { 0 .getmap counttomark 3 idiv { .addbfrange } repeat 0 .putmap pop
- } bind def
-
- /.addbfrange % <code_lo> <code_hi> <to_code|(charname*)> <map>
- % .addbfrange <map>
- { 1 index type /stringtype eq
- { { dup length string copy dup dup length 1 sub 2 copy get 1 add put }
- exch .addmaprange
- }
- { 2 dict begin exch /codes 1 index def 0 get exch
- { codes dup length 1 sub 1 exch getinterval /codes 1 index def
- dup length 0 gt { 0 get } if
- }
- exch .addmaprange end
- }
- ifelse exch pop
- } bind def
-
- % ------ CID selector operators ------ %
-
- /begincidchar % <count> begincidchar -
- { pop mark
- } bind def
- /endcidchar % <code> <cid> ... endcidchar -
- { 0 .getmap .endmapchar 0 .putmap
- } bind def
-
- /begincidrange % <count> begincidrange -
- { pop mark
- } bind def
- /endcidrange % <code_lo> <code_hi> <cid_base> ... endcidrange -
- { 0 .getmap counttomark 3 idiv { { 1 add } exch .addmaprange exch pop } repeat
- 0 .putmap pop
- } bind def
-
- /.endmapchar % -mark- <code> <value> ... <map> .endmapchar -
- { counttomark 2 idiv
- { 2 index 3 1 roll { } exch .addmaprange exch pop
- } repeat exch pop
- } bind def
-
- /.addmaprange % <code_lo> <code_hi> <value_base> <next_proc> <map>
- % .addcidrange <value_next> <map>
- { % We may be updating a (partly) read-only map from another CMap.
- % If so, implement copy-on-write.
- dup wcheck not { dup length array copy } if
- 4 index length 1 eq
- { 2 { 5 -1 roll 0 get } repeat 1 exch
- { % Stack: value proc map code
- 2 copy 5 index put pop
- 3 -1 roll 2 index exec 3 1 roll
- } for
- }
- { 4 index 0 get 1 5 index 0 get
- 8 -2 roll
- 2 { 1 1 index length 1 sub getinterval 8 1 roll } repeat
- % Stack: lo hi next proc map lo0 1 hi0
- { 6 copy get .addmaprange
- % Stack: lo hi oldnext proc map i next submap
- exch 6 1 roll 5 -1 roll pop
- % Stack: lo hi next proc map i submap
- 3 copy put pop pop
- }
- for 5 -2 roll pop pop
- }
- ifelse exch pop
- } bind def
-
- % ------ notdef operators ------ %
-
- /beginnotdefchar % <count> beginnotdefchar -
- { pop mark
- } bind def
- /endnotdefchar % <code> <cid> ... endnotdefchar -
- { counttomark 2 idiv { 1 index exch .addnotdefrange } repeat pop
- } bind def
-
- /beginnotdefrange % <count> beginnotdefrange -
- { pop mark
- } bind def
- /endnotdefrange % <code_lo> <code_hi> <cid> ... endnotdefrange -
- { counttomark 3 idiv { .addnotdefrange } repeat pop
- } bind def
-
- /.addnotdefrange % <code_lo> <code_hi> <cid_base> .addnotdefrange -
- { { } 1 .getmap .addmaprange 1 .putmap pop
- } bind def
-
- % ---------------- Resource category definition ---------------- %
-
- currentdict end
-
- languagelevel exch 2 .setlanguagelevel
-
- /CMap /Generic /Category findresource dup length dict .copydict
- /Category defineresource pop
- % We might have loaded CID font support already.
- /CIDInit /ProcSet 2 copy { findresource } .internalstopped
- % An interior `stopped' might have reset VM allocation to local.
- true .setglobal
- { pop pop 3 -1 roll }
- { dup length 4 index length add dict .copydict 4 -1 roll exch .copydict }
- ifelse exch defineresource pop
-
- .setlanguagelevel
-