/usr/share/texlive/texmf-dist/tex/generic/tex-ps/epsfx.tex is in texlive-generic-recommended 2013.20140215-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 | %--------------------------------------------------------------------------
% This is small extension of T. Rokicki's EPSF.TEX (from DVIPS 5.58):
% -- allows safe including of EPS files generated by DVIPS
% -- can also display bounding boxes.
%--------------------------------------------------------------------------
% AUTHORS: Bogus\l{}aw Jackowski and Piotr Pianowski
% BOP s.c.
% ul. Piastowska 70, 80-363 Gda\'nsk, Poland
% email: B.Jackowski@GUST.org.pl
% USAGE:
% \eps{file.eps} % instead of \epsffile{file.eps}
% The following settings of the parameter \tracingeps are recognized:
% \tracingeps=0 % default, no extra information displayed
% \tracingeps=1 % displays bounding boxes and file names
% \tracingeps>1 % displays graphics, bounding boxes and file names
% HISTORY:
% ver. 0.5 19 VIII 1994
% ver. 0.51 25 VIII 1994
% * \epsnamecolor added
% ver. 0.52 31 VIII 1994
% * \eps renamed to \epsraw
% * \tps renamed to \eps
% ver. 0.53 9 I 1995
% * `\isls false N' added to \eps
% * virtually active slash neutralized
% ver. 0.54 9 III 1995
% * \eps clears bop-hook
% ver. 0.55 27 III 1995
% * a patch neutralizing unnecessary rounding added
% ver. 0.56 3 X 1995
% * \special commands surrounding EPS box are to be nested in the \vbox
% ver. 0.57 31 VIII 1996
% * odd characters in names enabled
% ver. 0.58 21 III 1997
% * setpageparams and setpage neutralized
% ver. 0.585 25 III 1997
% * comments touched
% ver. 0.59 7 VI 1998
% * EPSF.TEX included
% ver. 0.60 10 I 1999
% * safe multiplication of eps dimensions by 10 (expected to be
% included in the newest version of Rokicki's package)
% ver. 0.61 29 III 2000
% * \eps expands to \hbox
% ver. 0.62 13 (Friday) VII 2001
% * setpagedevice neutralized (why only now?) along with a bundle of
% commands specifying paper size (a0, a1, ... , b0, b1, ... , etc.)
%--------------------------------------------------------------------------
\edef\slashcatcode{\the\catcode`\/}
\catcode`\/12
%
%%%%%%%%%%%%%%%%%%%%%%%%%%% \input epsf -- inserted below %%%%%%%%%%%%%%%%%
% EPSF.TEX macro file:
% Written by Tomas Rokicki of Radical Eye Software, 29 Mar 1989.
% Revised by Don Knuth, 3 Jan 1990.
% Revised by Tomas Rokicki to accept bounding boxes with no
% space after the colon, 18 Jul 1990.
%
% TeX macros to include an Encapsulated PostScript graphic.
% Works by finding the bounding box comment,
% calculating the correct scale values, and inserting a vbox
% of the appropriate size at the current position in the TeX document.
%
% To use with the center environment of LaTeX, preface the \epsffile
% call with a \leavevmode. (LaTeX should probably supply this itself
% for the center environment.)
%
% To use, simply say
% \input epsf % somewhere early on in your TeX file
% \epsfbox{filename.ps} % where you want to insert a vbox for a figure
%
% Alternatively, you can type
%
% \epsfbox[0 0 30 50]{filename.ps} % to supply your own BB
%
% which will not read in the file, and will instead use the bounding
% box you specify.
%
% The effect will be to typeset the figure as a TeX box, at the
% point of your \epsfbox command. By default, the graphic will have its
% `natural' width (namely the width of its bounding box, as described
% in filename.ps). The TeX box will have depth zero.
%
% You can enlarge or reduce the figure by saying
% \epsfxsize=<dimen> \epsfbox{filename.ps}
% (or
% \epsfysize=<dimen> \epsfbox{filename.ps})
% instead. Then the width of the TeX box will be \epsfxsize and its
% height will be scaled proportionately (or the height will be
% \epsfysize and its width will be scaled proportiontally). The
% width (and height) is restored to zero after each use.
%
% A more general facility for sizing is available by defining the
% \epsfsize macro. Normally you can redefine this macro
% to do almost anything. The first parameter is the natural x size of
% the PostScript graphic, the second parameter is the natural y size
% of the PostScript graphic. It must return the xsize to use, or 0 if
% natural scaling is to be used. Common uses include:
%
% \epsfxsize % just leave the old value alone
% 0pt % use the natural sizes
% #1 % use the natural sizes
% \hsize % scale to full width
% 0.5#1 % scale to 50% of natural size
% \ifnum#1>\hsize\hsize\else#1\fi % smaller of natural, hsize
%
% If you want TeX to report the size of the figure (as a message
% on your terminal when it processes each figure), say `\epsfverbosetrue'.
%
\newread\epsffilein % file to \read
\newif\ifepsffileok % continue looking for the bounding box?
\newif\ifepsfbbfound % success?
\newif\ifepsfverbose % report what you're making?
\newif\ifepsfdraft % use draft mode?
\newdimen\epsfxsize % horizontal size after scaling
\newdimen\epsfysize % vertical size after scaling
\newdimen\epsftsize % horizontal size before scaling
\newdimen\epsfrsize % vertical size before scaling
\newdimen\epsftmp % register for arithmetic manipulation
\newdimen\pspoints % conversion factor
%
\pspoints=1bp % Adobe points are `big'
\epsfxsize=0pt % Default value, means `use natural size'
\epsfysize=0pt % ditto
%
\def\epsfbox#1{\global\def\epsfllx{72}\global\def\epsflly{72}%
\global\def\epsfurx{540}\global\def\epsfury{720}%
\def\lbracket{[}\def\testit{#1}\ifx\testit\lbracket
\let\next=\epsfgetlitbb\else\let\next=\epsfnormal\fi\next{#1}}%
%
\def\epsfgetlitbb#1#2 #3 #4 #5]#6{\epsfgrab #2 #3 #4 #5 .\\%
\epsfsetgraph{#6}}%
%
\def\epsfnormal#1{\epsfgetbb{#1}\epsfsetgraph{#1}}%
%
\def\epsfgetbb#1{%
%
% The first thing we need to do is to open the
% PostScript file, if possible.
%
\openin\epsffilein=#1
\ifeof\epsffilein\errmessage{I couldn't open #1, will ignore it}\else
%
% Okay, we got it. Now we'll scan lines until we find one that doesn't
% start with %. We're looking for the bounding box comment.
%
{\epsffileoktrue \chardef\other=12
\def\do##1{\catcode`##1=\other}\dospecials \catcode`\ =10
\loop
\read\epsffilein to \epsffileline
\ifeof\epsffilein\epsffileokfalse\else
%
% We check to see if the first character is a % sign;
% if not, we stop reading (unless the line was entirely blank);
% if so, we look further and stop only if the line begins with
% `%%BoundingBox:'.
%
\expandafter\epsfaux\epsffileline:. \\%
\fi
\ifepsffileok\repeat
\ifepsfbbfound\else
\ifepsfverbose\message{No bounding box comment in #1; using defaults}\fi\fi
}\closein\epsffilein\fi}%
%
% Now we have to calculate the scale and offset values to use.
% First we compute the natural sizes.
%
\def\epsfclipon{\def\epsfclipstring{ clip}}%
\def\epsfclipoff{\def\epsfclipstring{\ifepsfdraft\space clip\fi}}%
\epsfclipoff
%
\def\epsfsetgraph#1{%
\epsfrsize=\epsfury\pspoints
\advance\epsfrsize by-\epsflly\pspoints
\epsftsize=\epsfurx\pspoints
\advance\epsftsize by-\epsfllx\pspoints
%
% If `epsfxsize' is 0, we default to the natural size of the picture.
% Otherwise we scale the graph to be \epsfxsize wide.
%
\epsfxsize\epsfsize\epsftsize\epsfrsize
\ifnum\epsfxsize=0 \ifnum\epsfysize=0
\epsfxsize=\epsftsize \epsfysize=\epsfrsize
\epsfrsize=0pt
%
% We have a sticky problem here: TeX doesn't do floating point arithmetic!
% Our goal is to compute y = rx/t. The following loop does this reasonably
% fast, with an error of at most about 16 sp (about 1/4000 pt).
%
\else\epsftmp=\epsftsize \divide\epsftmp\epsfrsize
\epsfxsize=\epsfysize \multiply\epsfxsize\epsftmp
\multiply\epsftmp\epsfrsize \advance\epsftsize-\epsftmp
\epsftmp=\epsfysize
\loop \advance\epsftsize\epsftsize \divide\epsftmp 2
\ifnum\epsftmp>0
\ifnum\epsftsize<\epsfrsize\else
\advance\epsftsize-\epsfrsize \advance\epsfxsize\epsftmp \fi
\repeat
\epsfrsize=0pt
\fi
\else \ifnum\epsfysize=0
\epsftmp=\epsfrsize \divide\epsftmp\epsftsize
\epsfysize=\epsfxsize \multiply\epsfysize\epsftmp
\multiply\epsftmp\epsftsize \advance\epsfrsize-\epsftmp
\epsftmp=\epsfxsize
\loop \advance\epsfrsize\epsfrsize \divide\epsftmp 2
\ifnum\epsftmp>0
\ifnum\epsfrsize<\epsftsize\else
\advance\epsfrsize-\epsftsize \advance\epsfysize\epsftmp \fi
\repeat
\epsfrsize=0pt
\else
\epsfrsize=\epsfysize
\fi
\fi
%
% Finally, we make the vbox and stick in a \special that dvips can parse.
%
\ifepsfverbose\message{#1: width=\the\epsfxsize, height=\the\epsfysize}\fi
\epsftmp=10\epsfxsize \divide\epsftmp\pspoints
\vbox to\epsfysize{\vfil\hbox to\epsfxsize{%
\ifnum\epsfrsize=0\relax
\special{PSfile=\ifepsfdraft psdraft.ps\else#1\fi\space
llx=\epsfllx\space lly=\epsflly\space
urx=\epsfurx\space ury=\epsfury\space rwi=\number\epsftmp
\epsfclipstring}%
\else
\epsfrsize=10\epsfysize \divide\epsfrsize\pspoints
\special{PSfile=\ifepsfdraft psdraft.ps\else#1\fi\space
llx=\epsfllx\space lly=\epsflly\space
urx=\epsfurx\space ury=\epsfury\space rwi=\number\epsftmp\space
rhi=\number\epsfrsize \epsfclipstring}%
\fi
\hfil}}%
\global\epsfxsize=0pt\global\epsfysize=0pt}%
%
% We still need to define the tricky \epsfaux macro. This requires
% a couple of magic constants for comparison purposes.
%
{\catcode`\%=12 \global\let\epsfpercent=%\global\def\epsfbblit{%BoundingBox}}%
%
% So we're ready to check for `%BoundingBox:' and to grab the
% values if they are found.
%
\long\def\epsfaux#1#2:#3\\{\ifx#1\epsfpercent
\def\testit{#2}\ifx\testit\epsfbblit
\epsfgrab #3 . . . \\%
\epsffileokfalse
\global\epsfbbfoundtrue
\fi\else\ifx#1\par\else\epsffileokfalse\fi\fi}%
%
% Here we grab the values and stuff them in the appropriate definitions.
%
\def\epsfempty{}%
\def\epsfgrab #1 #2 #3 #4 #5\\{%
\global\def\epsfllx{#1}\ifx\epsfllx\epsfempty
\epsfgrab #2 #3 #4 #5 .\\\else
\global\def\epsflly{#2}%
\global\def\epsfurx{#3}\global\def\epsfury{#4}\fi}%
%
% We default the epsfsize macro.
%
\def\epsfsize#1#2{\epsfxsize}
%
% Finally, another definition for compatibility with older macros.
%
\let\epsffile=\epsfbox
%%%%%%%%%%%%%%%%%%%%%%%%%%%%% End of EPSF %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% ---
\newcount\tracingeps \tracingeps0
% ---
\newbox\tmpepsbox
% ---
\ifx\epsdirundefined\epsdir\def\epsdir{}\fi
\def\epsnamecolor{1 0 0}
% ---
% BOTH \eps and \epsraw ``normalize'' the eps name, as one may wish
% to use \epsraw separately
% ---
\def\epsraw{\begingroup\escapechar-1\catcode`\%12\def~{\string~}\epsrawcont}
\def\epsrawcont#1{%
\xdef\theepsname{\expandafter\string\csname#1\endcsname}\endgroup
\ifnum\tracingeps=0 \hbox{\epsffile{\epsdir\theepsname}}\fi
\ifnum\tracingeps>0
\hbox{\setbox\tmpepsbox\hbox{\epsffile{\epsdir\theepsname}}%
\ifnum\tracingeps>1 \rlap{\copy\tmpepsbox}\fi
\vbox{\offinterlineskip
\hrule\vskip-.4pt
\hbox to\wd\tmpepsbox{\vrule\hss\vbox to\ht\tmpepsbox{
\vss\hbox{\tt \special{ps:gsave \epsnamecolor\space setrgbcolor}%
\theepsname\special{ps:grestore}}\vss}\hss\vrule}
\vskip-.4pt\hrule
}}\fi}
% ---
\def\eps{\hbox\bgroup
\begingroup \escapechar-1 \catcode`\%12 \def~{\string~}\epscont}
\def\epscont#1{%
\xdef\theepsname{\expandafter\string\csname#1\endcsname}\endgroup
\vbox{\special{ps: /SItps save N /isls false N
statusdict begin
/setpageparams {pop pop pop pop} def /setpage {pop pop pop} def
end
userdict begin
/bop-hook {} def /setpagedevice {pop} def
/a0 {} def /a1 {} def /a2 {} def /a3 {} def /a4 {} def /a5 {} def
/a6 {} def /a7 {} def /a8 {} def /a9 {} def /a10 {} def
/b0 {} def /b1 {} def /b2 {} def /b3 {} def /b4 {} def /b5 {} def
/letter {} def /note {} def /legal {} def
/halfletter {} def /11x17 {} def /ledger {} def
/flsa {} def /flse {} def
end }%
\epsraw\theepsname\special{ps: SItps restore }}\egroup}
% ---
% Redefinition of epsf macros:
%
% The values of `rwi' and `rhi' parameters are to be given in tenths
% of big point; the older version of the epsf package used to multiply
% a dimen register by 10, which put severe limitations on the
% available EPS size.
%
% The macro `\decimalshift' multiplies a given value by 10 ``syntactically,''
% i.e., accomplishes ``decimal shifting''; the following conditions
% are assumed to hold:
% * leading zeros are meaningless;
% * <digit>+<period><dimen unit> is a proper form of a dimen value;
% * the command `\the' applied to a dimen register yields a canonical form:
% [<minus>]<digit>+[<period><digit>+]<pt unit>
% where <pt unit> are `p' and `t' characters having category code 12.
%
\def\decimalshift#1{% #1 -- a dimen register
\expandafter\expandafter\expandafter
\decimalsplit\expandafter\gobblePT\the#1.\relax
}%
\def\decimalsplit#1.#2\relax{%
\ifnum#1=0 \ifdim#11sp=-1sp -\fi \else #1\fi
\ifdim0#2sp=0sp 0\else \fractionshift#2\fi
}%
\def\fractionshift#1#2.{\ifnum0#2=0 #1\else #1.#2\fi}%
{\catcode`\p12 \catcode`\t12 \gdef\gobblePT#1pt{#1}}%
\def\pttobp{0.99626401}% = 72/72.27
% ---
\def\epsfsetgraph#1{%
\epsfrsize=\epsfury\pspoints
\advance\epsfrsize by-\epsflly\pspoints
\epsftsize=\epsfurx\pspoints
\advance\epsftsize by-\epsfllx\pspoints
%
% If `epsfxsize' is 0, we default to the natural size of the picture.
% Otherwise we scale the graph to be \epsfxsize wide.
%
\epsfxsize\epsfsize\epsftsize\epsfrsize
\ifnum\epsfxsize=0 \ifnum\epsfysize=0
\epsfxsize=\epsftsize \epsfysize=\epsfrsize
\epsfrsize=0pt
%
% We have a sticky problem here: TeX doesn't do floating point arithmetic!
% Our goal is to compute y = rx/t. The following loop does this reasonably
% fast, with an error of at most about 16 sp (about 1/4000 pt).
%
\else\epsftmp=\epsftsize \divide\epsftmp\epsfrsize
\epsfxsize=\epsfysize \multiply\epsfxsize\epsftmp
\multiply\epsftmp\epsfrsize \advance\epsftsize-\epsftmp
\epsftmp=\epsfysize
\loop \advance\epsftsize\epsftsize \divide\epsftmp 2
\ifnum\epsftmp>0
\ifnum\epsftsize<\epsfrsize\else
\advance\epsftsize-\epsfrsize \advance\epsfxsize\epsftmp \fi
\repeat
\epsfrsize=0pt
\fi
\else \ifnum\epsfysize=0
\epsftmp=\epsfrsize \divide\epsftmp\epsftsize
\epsfysize=\epsfxsize \multiply\epsfysize\epsftmp
\multiply\epsftmp\epsftsize \advance\epsfrsize-\epsftmp
\epsftmp=\epsfxsize
\loop \advance\epsfrsize\epsfrsize \divide\epsftmp 2
\ifnum\epsftmp>0
\ifnum\epsfrsize<\epsftsize\else
\advance\epsfrsize-\epsftsize \advance\epsfysize\epsftmp \fi
\repeat
\epsfrsize=0pt
\else
\epsfrsize=\epsfysize
\fi
\fi
%
% Finally, we make the vbox and stick in a \special that dvips can parse.
%
\ifepsfverbose\message{#1: width=\the\epsfxsize, height=\the\epsfysize}\fi
\epsftmp=\pttobp\epsfxsize
\vbox to\epsfysize{\vfil\hbox to\epsfxsize{%
\ifnum\epsfrsize=0\relax
\special{PSfile=\ifepsfdraft psdraft.ps\else#1\fi\space
llx=\epsfllx\space lly=\epsflly\space
urx=\epsfurx\space ury=\epsfury\space
rwi=\decimalshift\epsftmp
\epsfclipstring}%
\else
\epsfrsize=\pttobp\epsfysize
\special{PSfile=\ifepsfdraft psdraft.ps\else#1\fi\space
llx=\epsfllx\space lly=\epsflly\space
urx=\epsfurx\space ury=\epsfury\space
rwi=\decimalshift\epsftmp\space
rhi=\decimalshift\epsfrsize
\epsfclipstring}%
\fi
\hfil}}%
\global\epsfxsize=0pt\global\epsfysize=0pt}%
% ---
\catcode`\/\slashcatcode
% ---
\endinput
|