% Copyright (C) 1989, 1996 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.% $Id: gs_epsf.ps,v 1.1 2000/03/09 08:40:39 lpd Exp $% Allow the interpreter to recognize MS-DOS EPSF file headers, and skip to% the PostScript section of the file./.runnoepsf /run load def/.epsfheader <C5D0D3C6> def/run { dup type /filetype ne { (r) file } if % Check for MS-DOS EPSF file (see Red Book p. 729). true exch 0 1 3 { % Stack: true file index 1 index read dup { pop dup .epsfheader 3 index get eq } if { pop pop } % if matched, don't need the character { % unread characters (wasn't EPSF) 2 index exch unread % unread mismatch character dup { % loop unreading backwards in .epsfheader 1 sub dup .epsfheader exch get 2 index exch unread } repeat pop exch not exch exit % change true to false } ifelse } for exch % Stack: file true/false { % This block is executed if the file is MS-DOS EPSF. % Build up the little-endian byte offset and length. 2 { 1 0 4 { 2 index read not { pop exit } if % if EOF, let error happen 2 index mul add exch 256 mul exch } repeat exch pop exch } repeat % Stack: offset length file % Use flushfile to skip quickly to the start of the % PostScript section. dup 4 -1 roll 12 sub () /SubFileDecode filter flushfile % Now interpret the PostScript. exch () /SubFileDecode filter cvx .runexec } { .runnoepsf } ifelse } odef
% Copyright (C) 1989, 1996 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.
% $Id: gs_epsf.ps,v 1.1 2000/03/09 08:40:39 lpd Exp $
% Allow the interpreter to recognize MS-DOS EPSF file headers, and skip to
% the PostScript section of the file.
/.runnoepsf /run load def
/.epsfheader <C5D0D3C6> def
/run
{ dup type /filetype ne { (r) file } if
% Check for MS-DOS EPSF file (see Red Book p. 729).
true exch 0 1 3
{ % Stack: true file index
1 index read dup { pop dup .epsfheader 3 index get eq } if
{ pop pop } % if matched, don't need the character
{ % unread characters (wasn't EPSF)
2 index exch unread % unread mismatch character
dup { % loop unreading backwards in .epsfheader
1 sub dup .epsfheader exch get 2 index exch unread
} repeat pop
exch not exch exit % change true to false
}
ifelse
}
for exch % Stack: file true/false
{ % This block is executed if the file is MS-DOS EPSF.
% Build up the little-endian byte offset and length.
2
{ 1 0 4
{ 2 index read not { pop exit } if % if EOF, let error happen
2 index mul add exch 256 mul exch
}
repeat exch pop exch
}
repeat
% Stack: offset length file
% Use flushfile to skip quickly to the start of the
% PostScript section.
dup 4 -1 roll 12 sub () /SubFileDecode filter flushfile
% Now interpret the PostScript.
exch () /SubFileDecode filter cvx .runexec
}
{ .runnoepsf
}
ifelse
} odef