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% Copyright (C) 1998, 2000 Aladdin Enterprises. All rights reserved.
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%
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% This software is provided AS-IS with no warranty, either express or
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% implied.
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%
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% This software is distributed under license and may not be copied,
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% modified or distributed except as expressly authorized under the terms
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% of the license contained in the file LICENSE in this distribution.
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%
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% For more information about licensing, please refer to
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% http://www.ghostscript.com/licensing/. For information on
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% commercial licensing, go to http://www.artifex.com/licensing/ or
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% contact Artifex Software, Inc., 101 Lucas Valley Road #110,
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% San Rafael, CA 94903, U.S.A., +1(415)492-9861.
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% $Id: cid2code.ps,v 1.5 2002/02/21 21:49:28 giles Exp $
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% Construct an inverse map from CIDs to codes.
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% Create an inverse map from CIDs to code values.
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% We only use this for 16-bit Unicode, so it has some limitations.
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% After invoking .cmap2code, loading a CMap file prints out the map
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% instead of doing what it usually does. For example:
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%
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% gs -dNODISPLAY -dBATCH lib/cid2code.ps -c .cmap2code\
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% -f Resource/CMap/UniJIS-UCS2-H > mapfile
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/.cmap2codedict 10 dict begin
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/begincmap {
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mark
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} def
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/endcmap {
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% Stack: mark code_lo1 code_hi1 cid1 ...
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20 dict begin
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/depth counttomark 3 sub def
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% Do a first pass to determine the maximum CID.
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1 add /d exch def
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d index d 2 add index 1 get add d 3 add index 1 get sub .max
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} for
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1 add /ncid exch def
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/map ncid 2 mul string def
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% Now fill in the map.
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/d exch def
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d index 2 mul /cid2 exch def
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d 1 add index /hi exch def
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d 2 add index 2 string copy /lo exch def
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lo 1 get 1 hi 1 get {
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map cid2 lo 0 get put
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map cid2 1 add 3 -1 roll put
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/cid2 cid2 2 add def
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} for
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} for
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% Print the map.
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(%stdout) (w) file
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dup (<) print
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dup /ASCIIHexEncode filter
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dup map writestring
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closefile
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() = flush
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closefile
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end
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} def
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%/begincodespacerange
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/endcodespacerange {cleartomark} def
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%/usecmap
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%/beginbfchar
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/endbfchar {cleartomark} def
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%/beginbfrange
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/endbfrange {cleartomark} def
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%/begincidchar
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/endcidchar {
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counttomark 2 idiv { dup counttomark 1 add 3 roll } repeat pop
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} def
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%/begincidrange
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/endcidrange {
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counttomark 1 add -1 roll pop
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} def
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%/beginnotdefchar
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/endnotdefchar {cleartomark} def
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%/beginnotdefrange
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/endnotdefrange {cleartomark} def
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currentdict end readonly def
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/.cmap2code { % - .cmap2code -
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/CIDInit /ProcSet findresource dup length dict copy
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.cmap2codedict { 3 copy put pop pop } forall
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/CIDInit exch /ProcSet defineresource pop
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} def
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% Extract and print reverse mapping information from a cid2code.txt file.
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/.printhex2 { % <int16> .printhex2 -
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(<) print
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16#10000 add 16 =string cvrs 1 4 getinterval print
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(>) print
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} def
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/.cid2code { % <cmaptemplate> <file> <column> .cid2code -
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30 dict begin
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/column exch def
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(r) file /f exch def
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(%!) =
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(/CIDInit /ProcSet findresource begin 12 dict begin begincmap) =
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% Print the information from the template.
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{
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exch ==only ( ) print
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dup type /dicttype eq {
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dup length =only ( dict dup begin) = {
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( ) print exch ===only ( ) print ===only ( def) =
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} forall (end def) =
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} {
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===only
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} ifelse ( def) =
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} forall
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% Read the data from the cid2code.txt file.
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{
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f =string readline pop (CID\t) anchorsearch { pop pop exit } if pop
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} loop
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/map [ {
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f =string readline not { pop exit } if
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column { (\t) search pop pop pop } repeat
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(\t) search { exch pop exch pop } if
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(,) search { exch pop exch pop } if
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dup length 4 ne { pop (*) } if
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dup (*) eq { pop (0000) } if
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(16#) exch concatstrings cvi
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} loop ] def
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% Print the code space range(s).
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/maxcid map length 1 sub def
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mark maxcid
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dup 255 and 255 eq {
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} {
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dup 16#ff00 and exch 0 2 index 1 sub
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} ifelse
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counttomark 2 idiv dup =only ( begincodespacerange) = {
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exch .printhex2 .printhex2 () =
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} repeat (endcodespacerange) =
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% Print the map data.
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/lo exch def
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/hi lo 99 add maxcid .min def
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dup 0 eq {
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pop
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} {
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=only ( begincidchar) = lo 1 hi {
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map 1 index get dup 0 eq { pop pop } { exch .printhex2 = } ifelse
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} for (endcidchar) =
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} ifelse
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} for
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% Wrap up.
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(endcmap CMapName currentdict /CMap defineresource pop end end) =
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f closefile
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end
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} bind def
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