rfc1125.ps

<VC++网络游戏建摸与实现>源代码

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TeXDict begin           % start using it.
/Resolution 300 def
/Inch{Resolution mul}def  % converts inches to internal units
/PageCounter statusdict begin pagecount end def  % so we can report # pages printed
/Mtrx 6 array def
/@letter
{letter initmatrix
72 Resolution div dup neg scale          % set scaling to 1.
310 -3005 translate      % move origin to top (these are not exactly 1"
Mtrx currentmatrix pop   % and -10" because margins aren't set exactly right)
}def
/@note
{note initmatrix
72 Resolution div dup neg scale          % set scaling to 1.
310 -3005 translate                      % move origin to top
Mtrx currentmatrix pop
}def
/@landscape
{letter initmatrix
72 Resolution div dup neg scale          % set scaling to 1.
-90 rotate                    % it would be nice to be able to do this
300 310  translate    % move origin to top
Mtrx currentmatrix pop
}def
/@legal
{legal initmatrix
72 Resolution div dup neg scale          % set scaling to 1.
295 -3880 translate                      % move origin to top
Mtrx currentmatrix pop
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/@manualfeed
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/@envelope
{statusdict /manualfeed true put
letter initmatrix
72 Resolution div dup neg scale          
-90 rotate 
450 1275 translate % upper right corner of regular envelope
300 310  translate
Mtrx currentmatrix pop
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/@copies
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end
newname newname load definefont pop
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/ch-xoff{ch-data 3 get}def   % number of pixels below origin
/ch-yoff{ch-data 4 get}def   % number of pixels to left of origin
/ch-tfmw{ch-data 5 get}def   % spacing to next character
/CharBuilder    % fontdict ch Charbuilder -     -- image one character
{/ch-code exch def           % save the char code
/font-dict exch def         % and the font dict.
/ch-data font-dict /BitMaps get ch-code get def     % get the bitmap descriptor for char
ch-data null eq not
{ch-tfmw   0   ch-xoff neg   ch-yoff neg   ch-width ch-xoff sub   ch-height ch-yoff sub
setcachedevice
ch-width ch-height true [1 0  0 1  ch-xoff ch-yoff]
{ch-image}imagemask
}
if
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{setfont() pop
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dup 0 get
length 2 lt
{pop [ <00> 1 1 0 0 8.00 ]}% replace <> with null
if
/ch-data exch def
currentfont /BitMaps get ch-code ch-data put
currentfont /Encoding get ch-code 
dup (   ) cvs cvn   % generate a unique name simply from the character code
put
}def
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{
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{pop
erasepage initgraphics 
Mtrx setmatrix
0 0 moveto
/SaveImage save def
}def
/@eop           % - @eop -              -- end a page
{showpage 
SaveImage restore
}def
/@start         % - @start -            -- start everything
{/note where 			% check to see if note exists
{@note}{@letter} ifelse 	% if so, do that.  Otherwise
}def
/@end           % - @end -              -- done the whole shebang
{end
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{moveto
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/r              % x r -                 -- move right
{0 rmoveto
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/s              % string s -            -- show the string
{show
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/c              % ch c -                -- show the character (code given)
{c-string exch 0 exch put
c-string show
}def
/c-string ( ) def
/ru             % dx dy ru -   -- set a rule (rectangle)
{/dy exch neg def    % because dy is height up from bottom
/dx exch def
/x currentpoint /y exch def def   % remember current point
newpath x y moveto
dx 0 rlineto
0 dy rlineto
dx neg 0 rlineto
closepath fill
x y moveto
}def
/@SpecialDefaults
{
/hsi 72 8.5 mul def  % 8.5 Inch def
/vsi 72 11 mul def   % 11 Inch def
/hof 0 def
/vof 0 def
/hsc 1 def
/vsc 1 def
/rotat 0 def
/CLIP false def
}def
/@hsize{/hsi exch def /CLIP true def}def
/@vsize{/vsi exch def /CLIP true def}def
/@hoffset{/hof exch def}def
/@voffset{/vof exch def}def
/@hscale{/hsc exch def}def
/@vscale{/vsc exch def}def
/@rotation{/rotat exch def}def
/@setclipper
{
CLIP
{newpath 0 0 moveto hsi 0 rlineto 0 vsi rlineto hsi neg 0 rlineto 
closepath clip}
if
}def
/@beginspecial          % - @beginspecial -     -- enter special mode
{gsave /SpecialSave save def
currentpoint transform initgraphics itransform translate 0 0 moveto
@SpecialDefaults    % setup default offsets, scales, sizes
}def
/@setspecial    % to setup user specified offsets, scales, sizes (for clipping)
{
hof vof translate
@setclipper
hsc vsc scale 
rotat rotate
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/@endspecial            % - @endspecial -       -- leave special mode
{
SpecialSave restore
grestore
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/TeXscale{65536 div}def
gsave initgraphics
/DocumentInitState [ matrix currentmatrix currentlinewidth currentlinecap
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grestore
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userdict maxlength dict begin
currentpoint transform
DocumentInitState setmiterlimit setgray setdash setlinejoin setlinecap
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/ury exch TeXscale def
/urx exch TeXscale def
/lly exch TeXscale def
/llx exch TeXscale def
/y exch TeXscale def
/x exch TeXscale def
currentpoint /cy exch def /cx exch def
/sx x urx llx sub div def 	% scaling for x
/sy y ury lly sub div def	% scaling for y
sx sy scale			% scale by (sx,sy)
cx sx div llx sub
cy sy div ury sub translate
/DefFigCTM matrix currentmatrix def
/initmatrix{
DefFigCTM setmatrix
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/defaultmatrix{
DefFigCTM exch copy
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/initgraphics{
DocumentInitState setmiterlimit setgray setdash 
setlinejoin setlinecap setlinewidth setmatrix
DefFigCTM setmatrix
}def
/showpage{
initgraphics
}def
/erasepage{
initgraphics
}def
/copypage{}def
}def
/clipFig{
currentpoint 6 2 roll
newpath 4 copy
4 2 roll moveto
6 -1 roll exch lineto
exch lineto
exch lineto
closepath clip
newpath
moveto
}def
/doclip{llx lly urx ury clipFig}def
/endTexFig{
end SavedState restore
}def
TeXDict begin @start
%%Title: rfc-estrin-requirements2.dvi
%%Creator: dvi2ps
%%EndProlog
18 @bop0
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