code.grnet.gr Git - aquarium/blob - doc/arch/sigplanconf.cls

   1 %-----------------------------------------------------------------------------
   2 %
   3 %               LaTeX Class/Style File
   4 %
   5 % Name:         sigplanconf.cls
   6 %
   7 % Purpose:      A LaTeX 2e class file for SIGPLAN conference proceedings.
   8 %               This class file supercedes acm_proc_article-sp,
   9 %               sig-alternate, and sigplan-proc.
  10 %
  11 % Author:       Paul C. Anagnostopoulos
  12 %               Windfall Software
  13 %               978 371-2316
  14 %               paul [atsign] windfall.com
  15 %
  16 % Created:      12 September 2004
  17 %
  18 % Revisions:    See end of file.
  19 %
  20 % This work is licensed under the Creative Commons Attribution License.
  21 % To view a copy of this license, visit
  22 %   http://creativecommons.org/licenses/by/3.0/
  23 % or send a letter to Creative Commons, 171 2nd Street, Suite 300,
  24 % San Francisco, California, 94105, U.S.A.
  25 %
  26 %-----------------------------------------------------------------------------
  27
  28
  29 \NeedsTeXFormat{LaTeX2e}[1995/12/01]
  30 \ProvidesClass{sigplanconf}[2011/11/08 v2.5 ACM SIGPLAN Proceedings]
  31
  32 % The following few pages contain LaTeX programming extensions adapted
  33 % from the ZzTeX macro package.
  34 \f
  35 %                       Token Hackery
  36 %                       ----- -------
  37
  38
  39 \def \@expandaftertwice {\expandafter\expandafter\expandafter}
  40 \def \@expandafterthrice {\expandafter\expandafter\expandafter\expandafter
  41                           \expandafter\expandafter\expandafter}
  42
  43 % This macro discards the next token.
  44
  45 \def \@discardtok #1{}%                                  token
  46
  47 % This macro removes the `pt' following a dimension.
  48
  49 {\catcode `\p = 12 \catcode `\t = 12
  50
  51 \gdef \@remover #1pt{#1}
  52
  53 } % \catcode
  54
  55 % This macro extracts the contents of a macro and returns it as plain text.
  56 % Usage: \expandafter\@defof \meaning\macro\@mark
  57
  58 \def \@defof #1:->#2\@mark{#2}
  59 \f
  60 %                       Control Sequence Names
  61 %                       ------- -------- -----
  62
  63
  64 \def \@name #1{%                                        {\tokens}
  65   \csname \expandafter\@discardtok \string#1\endcsname}
  66
  67 \def \@withname #1#2{%                                  {\command}{\tokens}
  68   \expandafter#1\csname \expandafter\@discardtok \string#2\endcsname}
  69 \f
  70 %                       Flags (Booleans)
  71 %                       ----- ----------
  72
  73 % The boolean literals \@true and \@false are appropriate for use with
  74 % the \if command, which tests the codes of the next two characters.
  75
  76 \def \@true {TT}
  77 \def \@false {FL}
  78
  79 \def \@setflag #1=#2{\edef #1{#2}}%              \flag = boolean
  80 \f
  81 %                       IF and Predicates
  82 %                       -- --- ----------
  83
  84 % A "predicate" is a macro that returns \@true or \@false as its value.
  85 % Such values are suitable for use with the \if conditional.  For example:
  86 %
  87 %   \if \@oddp{\x} <then-clause> \else <else-clause> \fi
  88
  89 % A predicate can be used with \@setflag as follows:
  90 %
  91 %   \@setflag \flag = {<predicate>}
  92
  93 % Here are the predicates for TeX's repertoire of conditional
  94 % commands.  These might be more appropriately interspersed with
  95 % other definitions in this module, but what the heck.
  96 % Some additional "obvious" predicates are defined.
  97
  98 \def \@eqlp   #1#2{\ifnum #1 = #2\@true \else \@false \fi}
  99 \def \@neqlp  #1#2{\ifnum #1 = #2\@false \else \@true \fi}
 100 \def \@lssp   #1#2{\ifnum #1 < #2\@true \else \@false \fi}
 101 \def \@gtrp   #1#2{\ifnum #1 > #2\@true \else \@false \fi}
 102 \def \@zerop  #1{\ifnum #1 = 0\@true \else \@false \fi}
 103 \def \@onep   #1{\ifnum #1 = 1\@true \else \@false \fi}
 104 \def \@posp   #1{\ifnum #1 > 0\@true \else \@false \fi}
 105 \def \@negp   #1{\ifnum #1 < 0\@true \else \@false \fi}
 106 \def \@oddp   #1{\ifodd #1\@true \else \@false \fi}
 107 \def \@evenp  #1{\ifodd #1\@false \else \@true \fi}
 108 \def \@rangep #1#2#3{\if \@orp{\@lssp{#1}{#2}}{\@gtrp{#1}{#3}}\@false \else
 109                                                           \@true \fi}
 110 \def \@tensp  #1{\@rangep{#1}{10}{19}}
 111
 112 \def \@dimeqlp   #1#2{\ifdim #1 = #2\@true \else \@false \fi}
 113 \def \@dimneqlp  #1#2{\ifdim #1 = #2\@false \else \@true \fi}
 114 \def \@dimlssp   #1#2{\ifdim #1 < #2\@true \else \@false \fi}
 115 \def \@dimgtrp   #1#2{\ifdim #1 > #2\@true \else \@false \fi}
 116 \def \@dimzerop  #1{\ifdim #1 = 0pt\@true \else \@false \fi}
 117 \def \@dimposp   #1{\ifdim #1 > 0pt\@true \else \@false \fi}
 118 \def \@dimnegp   #1{\ifdim #1 < 0pt\@true \else \@false \fi}
 119
 120 \def \@vmodep     {\ifvmode \@true \else \@false \fi}
 121 \def \@hmodep     {\ifhmode \@true \else \@false \fi}
 122 \def \@mathmodep  {\ifmmode \@true \else \@false \fi}
 123 \def \@textmodep  {\ifmmode \@false \else \@true \fi}
 124 \def \@innermodep {\ifinner \@true \else \@false \fi}
 125
 126 \long\def \@codeeqlp #1#2{\if #1#2\@true \else \@false \fi}
 127
 128 \long\def \@cateqlp #1#2{\ifcat #1#2\@true \else \@false \fi}
 129
 130 \long\def \@tokeqlp  #1#2{\ifx #1#2\@true \else \@false \fi}
 131 \long\def \@xtokeqlp #1#2{\expandafter\ifx #1#2\@true \else \@false \fi}
 132
 133 \long\def \@definedp #1{%
 134   \expandafter\ifx \csname \expandafter\@discardtok \string#1\endcsname
 135                    \relax \@false \else \@true \fi}
 136
 137 \long\def \@undefinedp #1{%
 138   \expandafter\ifx \csname \expandafter\@discardtok \string#1\endcsname
 139                    \relax \@true \else \@false \fi}
 140
 141 \def \@emptydefp #1{\ifx #1\@empty \@true \else \@false \fi}%       {\name}
 142
 143 \let \@emptylistp = \@emptydefp
 144
 145 \long\def \@emptyargp #1{%                               {#n}
 146   \@empargp #1\@empargq\@mark}
 147 \long\def \@empargp #1#2\@mark{%
 148   \ifx #1\@empargq \@true \else \@false \fi}
 149 \def \@empargq {\@empargq}
 150
 151 \def \@emptytoksp #1{%                                   {\tokenreg}
 152   \expandafter\@emptoksp \the#1\@mark}
 153
 154 \long\def \@emptoksp #1\@mark{\@emptyargp{#1}}
 155
 156 \def \@voidboxp #1{\ifvoid #1\@true \else \@false \fi}
 157 \def \@hboxp #1{\ifhbox #1\@true \else \@false \fi}
 158 \def \@vboxp #1{\ifvbox #1\@true \else \@false \fi}
 159
 160 \def \@eofp #1{\ifeof #1\@true \else \@false \fi}
 161
 162
 163 % Flags can also be used as predicates, as in:
 164 %
 165 %   \if \flaga <then-clause> \else <else-clause> \fi
 166
 167
 168 % Now here we have predicates for the common logical operators.
 169
 170 \def \@notp #1{\if #1\@false \else \@true \fi}
 171
 172 \def \@andp #1#2{\if #1%
 173                   \if #2\@true \else \@false \fi
 174                 \else
 175                   \@false
 176                 \fi}
 177
 178 \def \@orp #1#2{\if #1%
 179                  \@true
 180                \else
 181                  \if #2\@true \else \@false \fi
 182                \fi}
 183
 184 \def \@xorp #1#2{\if #1%
 185                   \if #2\@false \else \@true \fi
 186                 \else
 187                   \if #2\@true \else \@false \fi
 188                 \fi}
 189 \f
 190 %                       Arithmetic
 191 %                       ----------
 192
 193 \def \@increment #1{\advance #1 by 1\relax}%             {\count}
 194
 195 \def \@decrement #1{\advance #1 by -1\relax}%            {\count}
 196 \f
 197 %                       Options
 198 %                       -------
 199
 200
 201 \@setflag \@authoryear = \@false
 202 \@setflag \@blockstyle = \@false
 203 \@setflag \@copyrightwanted = \@true
 204 \@setflag \@explicitsize = \@false
 205 \@setflag \@mathtime = \@false
 206 \@setflag \@natbib = \@true
 207 \@setflag \@ninepoint = \@true
 208 \newcount{\@numheaddepth} \@numheaddepth = 3
 209 \@setflag \@onecolumn = \@false
 210 \@setflag \@preprint = \@false
 211 \@setflag \@reprint = \@false
 212 \@setflag \@tenpoint = \@false
 213 \@setflag \@times = \@false
 214
 215 % Note that all the dangerous article class options are trapped.
 216
 217 \DeclareOption{9pt}{\@setflag \@ninepoint = \@true
 218                     \@setflag \@explicitsize = \@true}
 219
 220 \DeclareOption{10pt}{\PassOptionsToClass{10pt}{article}%
 221                      \@setflag \@ninepoint = \@false
 222                      \@setflag \@tenpoint = \@true
 223                      \@setflag \@explicitsize = \@true}
 224
 225 \DeclareOption{11pt}{\PassOptionsToClass{11pt}{article}%
 226                      \@setflag \@ninepoint = \@false
 227                      \@setflag \@explicitsize = \@true}
 228
 229 \DeclareOption{12pt}{\@unsupportedoption{12pt}}
 230
 231 \DeclareOption{a4paper}{\@unsupportedoption{a4paper}}
 232
 233 \DeclareOption{a5paper}{\@unsupportedoption{a5paper}}
 234
 235 \DeclareOption{authoryear}{\@setflag \@authoryear = \@true}
 236
 237 \DeclareOption{b5paper}{\@unsupportedoption{b5paper}}
 238
 239 \DeclareOption{blockstyle}{\@setflag \@blockstyle = \@true}
 240
 241 \DeclareOption{cm}{\@setflag \@times = \@false}
 242
 243 \DeclareOption{computermodern}{\@setflag \@times = \@false}
 244
 245 \DeclareOption{executivepaper}{\@unsupportedoption{executivepaper}}
 246
 247 \DeclareOption{indentedstyle}{\@setflag \@blockstyle = \@false}
 248
 249 \DeclareOption{landscape}{\@unsupportedoption{landscape}}
 250
 251 \DeclareOption{legalpaper}{\@unsupportedoption{legalpaper}}
 252
 253 \DeclareOption{letterpaper}{\@unsupportedoption{letterpaper}}
 254
 255 \DeclareOption{mathtime}{\@setflag \@mathtime = \@true}
 256
 257 \DeclareOption{natbib}{\@setflag \@natbib = \@true}
 258
 259 \DeclareOption{nonatbib}{\@setflag \@natbib = \@false}
 260
 261 \DeclareOption{nocopyrightspace}{\@setflag \@copyrightwanted = \@false}
 262
 263 \DeclareOption{notitlepage}{\@unsupportedoption{notitlepage}}
 264
 265 \DeclareOption{numberedpars}{\@numheaddepth = 4}
 266
 267 \DeclareOption{numbers}{\@setflag \@authoryear = \@false}
 268
 269 %%%\DeclareOption{onecolumn}{\@setflag \@onecolumn = \@true}
 270
 271 \DeclareOption{preprint}{\@setflag \@preprint = \@true}
 272
 273 \DeclareOption{reprint}{\@setflag \@reprint = \@true}
 274
 275 \DeclareOption{times}{\@setflag \@times = \@true}
 276
 277 \DeclareOption{titlepage}{\@unsupportedoption{titlepage}}
 278
 279 \DeclareOption{twocolumn}{\@setflag \@onecolumn = \@false}
 280
 281 \DeclareOption*{\PassOptionsToClass{\CurrentOption}{article}}
 282
 283 \ExecuteOptions{9pt,indentedstyle,times}
 284 \@setflag \@explicitsize = \@false
 285 \ProcessOptions
 286
 287 \if \@onecolumn
 288   \if \@notp{\@explicitsize}%
 289     \@setflag \@ninepoint = \@false
 290     \PassOptionsToClass{11pt}{article}%
 291   \fi
 292   \PassOptionsToClass{twoside,onecolumn}{article}
 293 \else
 294   \PassOptionsToClass{twoside,twocolumn}{article}
 295 \fi
 296 \LoadClass{article}
 297
 298 \def \@unsupportedoption #1{%
 299   \ClassError{proc}{The standard '#1' option is not supported.}}
 300
 301 % This can be used with the 'reprint' option to get the final folios.
 302
 303 \def \setpagenumber #1{%
 304   \setcounter{page}{#1}}
 305
 306 \AtEndDocument{\label{sigplanconf@finalpage}}
 307 \f
 308 %                       Utilities
 309 %                       ---------
 310
 311
 312 \newcommand{\setvspace}[2]{%
 313   #1 = #2
 314   \advance #1 by -1\parskip}
 315 \f
 316 %                       Document Parameters
 317 %                       -------- ----------
 318
 319
 320 % Page:
 321
 322 \setlength{\hoffset}{-1in}
 323 \setlength{\voffset}{-1in}
 324
 325 \setlength{\topmargin}{1in}
 326 \setlength{\headheight}{0pt}
 327 \setlength{\headsep}{0pt}
 328
 329 \if \@onecolumn
 330   \setlength{\evensidemargin}{.75in}
 331   \setlength{\oddsidemargin}{.75in}
 332 \else
 333   \setlength{\evensidemargin}{.75in}
 334   \setlength{\oddsidemargin}{.75in}
 335 \fi
 336
 337 % Text area:
 338
 339 \newdimen{\standardtextwidth}
 340 \setlength{\standardtextwidth}{42pc}
 341
 342 \if \@onecolumn
 343   \setlength{\textwidth}{40.5pc}
 344 \else
 345   \setlength{\textwidth}{\standardtextwidth}
 346 \fi
 347
 348 \setlength{\topskip}{8pt}
 349 \setlength{\columnsep}{2pc}
 350 \setlength{\textheight}{54.5pc}
 351
 352 % Running foot:
 353
 354 \setlength{\footskip}{30pt}
 355
 356 % Paragraphs:
 357
 358 \if \@blockstyle
 359   \setlength{\parskip}{5pt plus .1pt minus .5pt}
 360   \setlength{\parindent}{0pt}
 361 \else
 362   \setlength{\parskip}{0pt}
 363   \setlength{\parindent}{12pt}
 364 \fi
 365
 366 \setlength{\lineskip}{.5pt}
 367 \setlength{\lineskiplimit}{\lineskip}
 368
 369 \frenchspacing
 370 \pretolerance = 400
 371 \tolerance = \pretolerance
 372 \setlength{\emergencystretch}{5pt}
 373 \clubpenalty = 10000
 374 \widowpenalty = 10000
 375 \setlength{\hfuzz}{.5pt}
 376
 377 % Standard vertical spaces:
 378
 379 \newskip{\standardvspace}
 380 \setvspace{\standardvspace}{5pt plus 1pt minus .5pt}
 381
 382 % Margin paragraphs:
 383
 384 \setlength{\marginparwidth}{36pt}
 385 \setlength{\marginparsep}{2pt}
 386 \setlength{\marginparpush}{8pt}
 387
 388
 389 \setlength{\skip\footins}{8pt plus 3pt minus 1pt}
 390 \setlength{\footnotesep}{9pt}
 391
 392 \renewcommand{\footnoterule}{%
 393   \hrule width .5\columnwidth height .33pt depth 0pt}
 394
 395 \renewcommand{\@makefntext}[1]{%
 396   \noindent \@makefnmark \hspace{1pt}#1}
 397
 398 % Floats:
 399
 400 \setcounter{topnumber}{4}
 401 \setcounter{bottomnumber}{1}
 402 \setcounter{totalnumber}{4}
 403
 404 \renewcommand{\fps@figure}{tp}
 405 \renewcommand{\fps@table}{tp}
 406 \renewcommand{\topfraction}{0.90}
 407 \renewcommand{\bottomfraction}{0.30}
 408 \renewcommand{\textfraction}{0.10}
 409 \renewcommand{\floatpagefraction}{0.75}
 410
 411 \setcounter{dbltopnumber}{4}
 412
 413 \renewcommand{\dbltopfraction}{\topfraction}
 414 \renewcommand{\dblfloatpagefraction}{\floatpagefraction}
 415
 416 \setlength{\floatsep}{18pt plus 4pt minus 2pt}
 417 \setlength{\textfloatsep}{18pt plus 4pt minus 3pt}
 418 \setlength{\intextsep}{10pt plus 4pt minus 3pt}
 419
 420 \setlength{\dblfloatsep}{18pt plus 4pt minus 2pt}
 421 \setlength{\dbltextfloatsep}{20pt plus 4pt minus 3pt}
 422
 423 % Miscellaneous:
 424
 425 \errorcontextlines = 5
 426 \f
 427 %                       Fonts
 428 %                       -----
 429
 430
 431 \if \@times
 432   \renewcommand{\rmdefault}{ptm}%
 433   \if \@mathtime
 434     \usepackage[mtbold,noTS1]{mathtime}%
 435   \else
 436 %%%    \usepackage{mathptm}%
 437   \fi
 438 \else
 439   \relax
 440 \fi
 441
 442 \if \@ninepoint
 443
 444 \renewcommand{\normalsize}{%
 445   \@setfontsize{\normalsize}{9pt}{10pt}%
 446   \setlength{\abovedisplayskip}{5pt plus 1pt minus .5pt}%
 447   \setlength{\belowdisplayskip}{\abovedisplayskip}%
 448   \setlength{\abovedisplayshortskip}{3pt plus 1pt minus 2pt}%
 449   \setlength{\belowdisplayshortskip}{\abovedisplayshortskip}}
 450
 451 \renewcommand{\tiny}{\@setfontsize{\tiny}{5pt}{6pt}}
 452
 453 \renewcommand{\scriptsize}{\@setfontsize{\scriptsize}{7pt}{8pt}}
 454
 455 \renewcommand{\small}{%
 456   \@setfontsize{\small}{8pt}{9pt}%
 457   \setlength{\abovedisplayskip}{4pt plus 1pt minus 1pt}%
 458   \setlength{\belowdisplayskip}{\abovedisplayskip}%
 459   \setlength{\abovedisplayshortskip}{2pt plus 1pt}%
 460   \setlength{\belowdisplayshortskip}{\abovedisplayshortskip}}
 461
 462 \renewcommand{\footnotesize}{%
 463   \@setfontsize{\footnotesize}{8pt}{9pt}%
 464   \setlength{\abovedisplayskip}{4pt plus 1pt minus .5pt}%
 465   \setlength{\belowdisplayskip}{\abovedisplayskip}%
 466   \setlength{\abovedisplayshortskip}{2pt plus 1pt}%
 467   \setlength{\belowdisplayshortskip}{\abovedisplayshortskip}}
 468
 469 \renewcommand{\large}{\@setfontsize{\large}{11pt}{13pt}}
 470
 471 \renewcommand{\Large}{\@setfontsize{\Large}{14pt}{18pt}}
 472
 473 \renewcommand{\LARGE}{\@setfontsize{\LARGE}{18pt}{20pt}}
 474
 475 \renewcommand{\huge}{\@setfontsize{\huge}{20pt}{25pt}}
 476
 477 \renewcommand{\Huge}{\@setfontsize{\Huge}{25pt}{30pt}}
 478
 479 \else\if \@tenpoint
 480
 481 \relax
 482
 483 \else
 484
 485 \relax
 486
 487 \fi\fi
 488 \f
 489 %                       Abstract
 490 %                       --------
 491
 492
 493 \renewenvironment{abstract}{%
 494   \section*{Abstract}%
 495   \normalsize}{%
 496   }
 497 \f
 498 %                       Bibliography
 499 %                       ------------
 500
 501
 502 \renewenvironment{thebibliography}[1]
 503      {\section*{\refname
 504         \@mkboth{\MakeUppercase\refname}{\MakeUppercase\refname}}%
 505       \list{\@biblabel{\@arabic\c@enumiv}}%
 506            {\settowidth\labelwidth{\@biblabel{#1}}%
 507             \leftmargin\labelwidth
 508             \advance\leftmargin\labelsep
 509             \@openbib@code
 510             \usecounter{enumiv}%
 511             \let\p@enumiv\@empty
 512             \renewcommand\theenumiv{\@arabic\c@enumiv}}%
 513       \bibfont
 514       \clubpenalty4000
 515       \@clubpenalty \clubpenalty
 516       \widowpenalty4000%
 517       \sfcode`\.\@m}
 518      {\def\@noitemerr
 519        {\@latex@warning{Empty `thebibliography' environment}}%
 520       \endlist}
 521
 522 \if \@natbib
 523
 524 \if \@authoryear
 525   \typeout{Using natbib package with 'authoryear' citation style.}
 526   \usepackage[authoryear,square]{natbib}
 527   \bibpunct{[}{]}{;}{a}{}{,}    % Change citation separator to semicolon,
 528                                 % eliminate comma between author and year.
 529   \let \cite = \citep
 530 \else
 531   \typeout{Using natbib package with 'numbers' citation style.}
 532   \usepackage[numbers,sort&compress,square]{natbib}
 533 \fi
 534 \setlength{\bibsep}{3pt plus .5pt minus .25pt}
 535
 536 \fi
 537
 538 \def \bibfont {\small}
 539 \f
 540 %                       Categories
 541 %                       ----------
 542
 543
 544 \@setflag \@firstcategory = \@true
 545
 546 \newcommand{\category}[3]{%
 547   \if \@firstcategory
 548     \paragraph*{Categories and Subject Descriptors}%
 549     \@setflag \@firstcategory = \@false
 550   \else
 551     \unskip ;\hspace{.75em}%
 552   \fi
 553   \@ifnextchar [{\@category{#1}{#2}{#3}}{\@category{#1}{#2}{#3}[]}}
 554
 555 \def \@category #1#2#3[#4]{%
 556   {\let \and = \relax
 557    #1 [\textit{#2}]%
 558    \if \@emptyargp{#4}%
 559      \if \@notp{\@emptyargp{#3}}: #3\fi
 560    \else
 561      :\space
 562      \if \@notp{\@emptyargp{#3}}#3---\fi
 563      \textrm{#4}%
 564    \fi}}
 565 \f
 566 %                       Copyright Notice
 567 %                       --------- ------
 568
 569
 570 \def \ftype@copyrightbox {8}
 571 \def \@toappear {}
 572 \def \@permission {}
 573 \def \@reprintprice {}
 574
 575 \def \@copyrightspace {%
 576   \@float{copyrightbox}[b]%
 577   \vbox to 1in{%
 578     \vfill
 579     \parbox[b]{20pc}{%
 580       \scriptsize
 581       \if \@preprint
 582         [Copyright notice will appear here
 583          once 'preprint' option is removed.]\par
 584       \else
 585         \@toappear
 586       \fi
 587       \if \@reprint
 588         \noindent Reprinted from \@conferencename,
 589         \@proceedings,
 590         \@conferenceinfo,
 591         pp.~\number\thepage--\pageref{sigplanconf@finalpage}.\par
 592       \fi}}%
 593   \end@float}
 594
 595 \long\def \toappear #1{%
 596   \def \@toappear {#1}}
 597
 598 \toappear{%
 599   \noindent \@permission \par
 600   \vspace{2pt}
 601   \noindent \textsl{\@conferencename}\quad \@conferenceinfo \par
 602   \noindent Copyright \copyright\ \@copyrightyear\ ACM \@copyrightdata
 603     \dots \@reprintprice\par}
 604
 605 \newcommand{\permission}[1]{%
 606   \gdef \@permission {#1}}
 607
 608 \permission{%
 609   Permission to make digital or hard copies of all or
 610   part of this work for personal or classroom use is granted without
 611   fee provided that copies are not made or distributed for profit or
 612   commercial advantage and that copies bear this notice and the full
 613   citation on the first page.  To copy otherwise, to republish, to
 614   post on servers or to redistribute to lists, requires prior specific
 615   permission and/or a fee.}
 616
 617 % Here we have some alternate permission statements and copyright lines:
 618
 619 \newcommand{\ACMCanadapermission}{%
 620   \permission{%
 621     Copyright \@copyrightyear\ Association for Computing Machinery.
 622     ACM acknowledges that
 623     this contribution was authored or co-authored by an affiliate of the
 624     National Research Council of Canada (NRC).
 625     As such, the Crown in Right of
 626     Canada retains an equal interest in the copyright, however granting
 627     nonexclusive, royalty-free right to publish or reproduce this article,
 628     or to allow others to do so, provided that clear attribution
 629     is also given to the authors and the NRC.}}
 630
 631 \newcommand{\ACMUSpermission}{%
 632   \permission{%
 633     Copyright \@copyrightyear\ Association for
 634     Computing Machinery. ACM acknowledges that
 635     this contribution was authored or co-authored
 636     by a contractor or affiliate
 637     of the U.S. Government. As such, the Government retains a nonexclusive,
 638     royalty-free right to publish or reproduce this article,
 639     or to allow others to do so, for Government purposes only.}}
 640
 641 \newcommand{\authorpermission}{%
 642   \permission{%
 643     Copyright is held by the author/owner(s).}
 644   \toappear{%
 645     \noindent \@permission \par
 646     \vspace{2pt}
 647     \noindent \textsl{\@conferencename}\quad \@conferenceinfo \par
 648     ACM \@copyrightdata.}}
 649
 650 \newcommand{\Sunpermission}{%
 651   \permission{%
 652     Copyright is held by Sun Microsystems, Inc.}%
 653   \toappear{%
 654     \noindent \@permission \par
 655     \vspace{2pt}
 656     \noindent \textsl{\@conferencename}\quad \@conferenceinfo \par
 657     ACM \@copyrightdata.}}
 658
 659 \newcommand{\USpublicpermission}{%
 660   \permission{%
 661     This paper is authored by an employee(s) of the United States
 662     Government and is in the public domain.}%
 663   \toappear{%
 664     \noindent \@permission \par
 665     \vspace{2pt}
 666     \noindent \textsl{\@conferencename}\quad \@conferenceinfo \par
 667     ACM \@copyrightdata.}}
 668
 669 \newcommand{\reprintprice}[1]{%
 670   \gdef \@reprintprice {#1}}
 671
 672 \reprintprice{\$10.00}
 673
 674 \newcommand{\authorversion}[4]{%
 675   \permission{%
 676   Copyright \copyright\ ACM, #1. This is the author's version of the work.
 677   It is posted here by permission of ACM for your personal use.
 678   Not for redistribution. The definitive version was published in
 679   #2, #3, http://doi.acm.org/10.1145/#4.}}
 680 \f
 681 %                       Enunciations
 682 %                       ------------
 683
 684
 685 \def \@begintheorem #1#2{%                      {name}{number}
 686   \trivlist
 687   \item[\hskip \labelsep \textsc{#1 #2.}]%
 688   \itshape\selectfont
 689   \ignorespaces}
 690
 691 \def \@opargbegintheorem #1#2#3{%               {name}{number}{title}
 692   \trivlist
 693   \item[%
 694     \hskip\labelsep \textsc{#1\ #2}%
 695     \if \@notp{\@emptyargp{#3}}\nut (#3).\fi]%
 696   \itshape\selectfont
 697   \ignorespaces}
 698 \f
 699 %                       Figures
 700 %                       -------
 701
 702
 703 \@setflag \@caprule = \@true
 704
 705 \long\def \@makecaption #1#2{%
 706   \addvspace{4pt}
 707   \if \@caprule
 708     \hrule width \hsize height .33pt
 709     \vspace{4pt}
 710   \fi
 711   \setbox \@tempboxa = \hbox{\@setfigurenumber{#1.}\nut #2}%
 712   \if \@dimgtrp{\wd\@tempboxa}{\hsize}%
 713     \noindent \@setfigurenumber{#1.}\nut #2\par
 714   \else
 715     \centerline{\box\@tempboxa}%
 716   \fi}
 717
 718 \newcommand{\nocaptionrule}{%
 719   \@setflag \@caprule = \@false}
 720
 721 \def \@setfigurenumber #1{%
 722   {\rmfamily \bfseries \selectfont #1}}
 723 \f
 724 %                       Hierarchy
 725 %                       ---------
 726
 727
 728 \setcounter{secnumdepth}{\@numheaddepth}
 729
 730 \newskip{\@sectionaboveskip}
 731 \setvspace{\@sectionaboveskip}{10pt plus 3pt minus 2pt}
 732
 733 \newskip{\@sectionbelowskip}
 734 \if \@blockstyle
 735   \setlength{\@sectionbelowskip}{0.1pt}%
 736 \else
 737   \setlength{\@sectionbelowskip}{4pt}%
 738 \fi
 739
 740 \renewcommand{\section}{%
 741   \@startsection
 742     {section}%
 743     {1}%
 744     {0pt}%
 745     {-\@sectionaboveskip}%
 746     {\@sectionbelowskip}%
 747     {\large \bfseries \raggedright}}
 748
 749 \newskip{\@subsectionaboveskip}
 750 \setvspace{\@subsectionaboveskip}{8pt plus 2pt minus 2pt}
 751
 752 \newskip{\@subsectionbelowskip}
 753 \if \@blockstyle
 754   \setlength{\@subsectionbelowskip}{0.1pt}%
 755 \else
 756   \setlength{\@subsectionbelowskip}{4pt}%
 757 \fi
 758
 759 \renewcommand{\subsection}{%
 760   \@startsection%
 761     {subsection}%
 762     {2}%
 763     {0pt}%
 764     {-\@subsectionaboveskip}%
 765     {\@subsectionbelowskip}%
 766     {\normalsize \bfseries \raggedright}}
 767
 768 \renewcommand{\subsubsection}{%
 769   \@startsection%
 770     {subsubsection}%
 771     {3}%
 772     {0pt}%
 773     {-\@subsectionaboveskip}
 774     {\@subsectionbelowskip}%
 775     {\normalsize \bfseries \raggedright}}
 776
 777 \newskip{\@paragraphaboveskip}
 778 \setvspace{\@paragraphaboveskip}{6pt plus 2pt minus 2pt}
 779
 780 \renewcommand{\paragraph}{%
 781   \@startsection%
 782     {paragraph}%
 783     {4}%
 784     {0pt}%
 785     {\@paragraphaboveskip}
 786     {-1em}%
 787     {\normalsize \bfseries \if \@times \itshape \fi}}
 788
 789 \renewcommand{\subparagraph}{%
 790   \@startsection%
 791     {subparagraph}%
 792     {4}%
 793     {0pt}%
 794     {\@paragraphaboveskip}
 795     {-1em}%
 796     {\normalsize \itshape}}
 797
 798 % Standard headings:
 799
 800 \newcommand{\acks}{\section*{Acknowledgments}}
 801
 802 \newcommand{\keywords}{\paragraph*{Keywords}}
 803
 804 \newcommand{\terms}{\paragraph*{General Terms}}
 805 \f
 806 %                       Identification
 807 %                       --------------
 808
 809
 810 \def \@conferencename {}
 811 \def \@conferenceinfo {}
 812 \def \@copyrightyear {}
 813 \def \@copyrightdata {[to be supplied]}
 814 \def \@proceedings {[Unknown Proceedings]}
 815
 816
 817 \newcommand{\conferenceinfo}[2]{%
 818   \gdef \@conferencename {#1}%
 819   \gdef \@conferenceinfo {#2}}
 820
 821 \newcommand{\copyrightyear}[1]{%
 822   \gdef \@copyrightyear {#1}}
 823
 824 \let \CopyrightYear = \copyrightyear
 825
 826 \newcommand{\copyrightdata}[1]{%
 827   \gdef \@copyrightdata {#1}}
 828
 829 \let \crdata = \copyrightdata
 830
 831 \newcommand{\proceedings}[1]{%
 832   \gdef \@proceedings {#1}}
 833 \f
 834 %                       Lists
 835 %                       -----
 836
 837
 838 \setlength{\leftmargini}{13pt}
 839 \setlength\leftmarginii{13pt}
 840 \setlength\leftmarginiii{13pt}
 841 \setlength\leftmarginiv{13pt}
 842 \setlength{\labelsep}{3.5pt}
 843
 844 \setlength{\topsep}{\standardvspace}
 845 \if \@blockstyle
 846   \setlength{\itemsep}{1pt}
 847   \setlength{\parsep}{3pt}
 848 \else
 849   \setlength{\itemsep}{1pt}
 850   \setlength{\parsep}{3pt}
 851 \fi
 852
 853 \renewcommand{\labelitemi}{{\small \centeroncapheight{\textbullet}}}
 854 \renewcommand{\labelitemii}{\centeroncapheight{\rule{2.5pt}{2.5pt}}}
 855 \renewcommand{\labelitemiii}{$-$}
 856 \renewcommand{\labelitemiv}{{\Large \textperiodcentered}}
 857
 858 \renewcommand{\@listi}{%
 859   \leftmargin = \leftmargini
 860   \listparindent = 0pt}
 861 %%%  \itemsep = 1pt
 862 %%%  \parsep = 3pt}
 863 %%%  \listparindent = \parindent}
 864
 865 \let \@listI = \@listi
 866
 867 \renewcommand{\@listii}{%
 868   \leftmargin = \leftmarginii
 869   \topsep = 1pt
 870   \labelwidth = \leftmarginii
 871   \advance \labelwidth by -\labelsep
 872   \listparindent = \parindent}
 873
 874 \renewcommand{\@listiii}{%
 875   \leftmargin = \leftmarginiii
 876   \labelwidth = \leftmarginiii
 877   \advance \labelwidth by -\labelsep
 878   \listparindent = \parindent}
 879
 880 \renewcommand{\@listiv}{%
 881   \leftmargin = \leftmarginiv
 882   \labelwidth = \leftmarginiv
 883   \advance \labelwidth by -\labelsep
 884   \listparindent = \parindent}
 885 \f
 886 %                       Mathematics
 887 %                       -----------
 888
 889
 890 \def \theequation {\arabic{equation}}
 891 \f
 892 %                       Miscellaneous
 893 %                       -------------
 894
 895
 896 \newcommand{\balancecolumns}{%
 897   \vfill\eject
 898   \global\@colht = \textheight
 899   \global\ht\@cclv = \textheight}
 900
 901 \newcommand{\nut}{\hspace{.5em}}
 902
 903 \newcommand{\softraggedright}{%
 904   \let \\ = \@centercr
 905   \leftskip = 0pt
 906   \rightskip = 0pt plus 10pt}
 907 \f
 908 %                       Program Code
 909 %                       ------- ----
 910
 911
 912 \newcommand{\mono}[1]{%
 913   {\@tempdima = \fontdimen2\font
 914    \texttt{\spaceskip = 1.1\@tempdima #1}}}
 915 \f
 916 %                       Running Heads and Feet
 917 %                       ------- ----- --- ----
 918
 919
 920 \def \@preprintfooter {}
 921
 922 \newcommand{\preprintfooter}[1]{%
 923   \gdef \@preprintfooter {#1}}
 924
 925 \if \@preprint
 926
 927 \def \ps@plain {%
 928   \let \@mkboth = \@gobbletwo
 929   \let \@evenhead = \@empty
 930   \def \@evenfoot {\scriptsize
 931                    \rlap{\textit{\@preprintfooter}}\hfil
 932                    \thepage \hfil
 933                    \llap{\textit{\@formatyear}}}%
 934   \let \@oddhead = \@empty
 935   \let \@oddfoot = \@evenfoot}
 936
 937 \else\if \@reprint
 938
 939 \def \ps@plain {%
 940   \let \@mkboth = \@gobbletwo
 941   \let \@evenhead = \@empty
 942   \def \@evenfoot {\scriptsize \hfil \thepage \hfil}%
 943   \let \@oddhead = \@empty
 944   \let \@oddfoot = \@evenfoot}
 945
 946 \else
 947
 948 \let \ps@plain = \ps@empty
 949 \let \ps@headings = \ps@empty
 950 \let \ps@myheadings = \ps@empty
 951
 952 \fi\fi
 953
 954 \def \@formatyear {%
 955   \number\year/\number\month/\number\day}
 956 \f
 957 %                       Special Characters
 958 %                       ------- ----------
 959
 960
 961 \DeclareRobustCommand{\euro}{%
 962   \protect{\rlap{=}}{\sf \kern .1em C}}
 963 \f
 964 %                       Title Page
 965 %                       ----- ----
 966
 967
 968 \@setflag \@addauthorsdone = \@false
 969
 970 \def \@titletext {\@latex@error{No title was provided}{}}
 971 \def \@subtitletext {}
 972
 973 \newcount{\@authorcount}
 974
 975 \newcount{\@titlenotecount}
 976 \newtoks{\@titlenotetext}
 977
 978 \def \@titlebanner {}
 979
 980 \renewcommand{\title}[1]{%
 981   \gdef \@titletext {#1}}
 982
 983 \newcommand{\subtitle}[1]{%
 984   \gdef \@subtitletext {#1}}
 985
 986 \newcommand{\authorinfo}[3]{%           {names}{affiliation}{email/URL}
 987   \global\@increment \@authorcount
 988   \@withname\gdef {\@authorname\romannumeral\@authorcount}{#1}%
 989   \@withname\gdef {\@authoraffil\romannumeral\@authorcount}{#2}%
 990   \@withname\gdef {\@authoremail\romannumeral\@authorcount}{#3}}
 991
 992 \renewcommand{\author}[1]{%
 993   \@latex@error{The \string\author\space command is obsolete;
 994                 use \string\authorinfo}{}}
 995
 996 \newcommand{\titlebanner}[1]{%
 997   \gdef \@titlebanner {#1}}
 998
 999 \renewcommand{\maketitle}{%
1000   \pagestyle{plain}%
1001   \if \@onecolumn
1002     {\hsize = \standardtextwidth
1003      \@maketitle}%
1004   \else
1005     \twocolumn[\@maketitle]%
1006   \fi
1007   \@placetitlenotes
1008   \if \@copyrightwanted \@copyrightspace \fi}
1009
1010 \def \@maketitle {%
1011   \begin{center}
1012   \@settitlebanner
1013   \let \thanks = \titlenote
1014   {\leftskip = 0pt plus 0.25\linewidth
1015    \rightskip = 0pt plus 0.25 \linewidth
1016    \parfillskip = 0pt
1017    \spaceskip = .7em
1018    \noindent \LARGE \bfseries \@titletext \par}
1019   \vskip 6pt
1020   \noindent \Large \@subtitletext \par
1021   \vskip 12pt
1022   \ifcase \@authorcount
1023     \@latex@error{No authors were specified for this paper}{}\or
1024     \@titleauthors{i}{}{}\or
1025     \@titleauthors{i}{ii}{}\or
1026     \@titleauthors{i}{ii}{iii}\or
1027     \@titleauthors{i}{ii}{iii}\@titleauthors{iv}{}{}\or
1028     \@titleauthors{i}{ii}{iii}\@titleauthors{iv}{v}{}\or
1029     \@titleauthors{i}{ii}{iii}\@titleauthors{iv}{v}{vi}\or
1030     \@titleauthors{i}{ii}{iii}\@titleauthors{iv}{v}{vi}%
1031                   \@titleauthors{vii}{}{}\or
1032     \@titleauthors{i}{ii}{iii}\@titleauthors{iv}{v}{vi}%
1033                   \@titleauthors{vii}{viii}{}\or
1034     \@titleauthors{i}{ii}{iii}\@titleauthors{iv}{v}{vi}%
1035                   \@titleauthors{vii}{viii}{ix}\or
1036     \@titleauthors{i}{ii}{iii}\@titleauthors{iv}{v}{vi}%
1037                   \@titleauthors{vii}{viii}{ix}\@titleauthors{x}{}{}\or
1038     \@titleauthors{i}{ii}{iii}\@titleauthors{iv}{v}{vi}%
1039                   \@titleauthors{vii}{viii}{ix}\@titleauthors{x}{xi}{}\or
1040     \@titleauthors{i}{ii}{iii}\@titleauthors{iv}{v}{vi}%
1041                   \@titleauthors{vii}{viii}{ix}\@titleauthors{x}{xi}{xii}%
1042   \else
1043     \@latex@error{Cannot handle more than 12 authors}{}%
1044   \fi
1045   \vspace{1.75pc}
1046   \end{center}}
1047
1048 \def \@settitlebanner {%
1049   \if \@andp{\@preprint}{\@notp{\@emptydefp{\@titlebanner}}}%
1050     \vbox to 0pt{%
1051       \vskip -32pt
1052       \noindent \textbf{\@titlebanner}\par
1053       \vss}%
1054     \nointerlineskip
1055   \fi}
1056
1057 \def \@titleauthors #1#2#3{%
1058   \if \@andp{\@emptyargp{#2}}{\@emptyargp{#3}}%
1059     \noindent \@setauthor{40pc}{#1}{\@false}\par
1060   \else\if \@emptyargp{#3}%
1061     \noindent \@setauthor{17pc}{#1}{\@false}\hspace{3pc}%
1062               \@setauthor{17pc}{#2}{\@false}\par
1063   \else
1064     \noindent \@setauthor{12.5pc}{#1}{\@false}\hspace{2pc}%
1065               \@setauthor{12.5pc}{#2}{\@false}\hspace{2pc}%
1066               \@setauthor{12.5pc}{#3}{\@true}\par
1067     \relax
1068   \fi\fi
1069   \vspace{20pt}}
1070
1071 \def \@setauthor #1#2#3{%                       {width}{text}{unused}
1072   \vtop{%
1073     \def \and {%
1074       \hspace{16pt}}
1075     \hsize = #1
1076     \normalfont
1077     \centering
1078     \large \@name{\@authorname#2}\par
1079     \vspace{5pt}
1080     \normalsize \@name{\@authoraffil#2}\par
1081     \vspace{2pt}
1082     \textsf{\@name{\@authoremail#2}}\par}}
1083
1084 \def \@maybetitlenote #1{%
1085   \if \@andp{#1}{\@gtrp{\@authorcount}{3}}%
1086     \titlenote{See page~\pageref{@addauthors} for additional authors.}%
1087   \fi}
1088
1089 \newtoks{\@fnmark}
1090
1091 \newcommand{\titlenote}[1]{%
1092   \global\@increment \@titlenotecount
1093   \ifcase \@titlenotecount \relax \or
1094     \@fnmark = {\ast}\or
1095     \@fnmark = {\dagger}\or
1096     \@fnmark = {\ddagger}\or
1097     \@fnmark = {\S}\or
1098     \@fnmark = {\P}\or
1099     \@fnmark = {\ast\ast}%
1100   \fi
1101   \,$^{\the\@fnmark}$%
1102   \edef \reserved@a {\noexpand\@appendtotext{%
1103                        \noexpand\@titlefootnote{\the\@fnmark}}}%
1104   \reserved@a{#1}}
1105
1106 \def \@appendtotext #1#2{%
1107   \global\@titlenotetext = \expandafter{\the\@titlenotetext #1{#2}}}
1108
1109 \newcount{\@authori}
1110
1111 \iffalse
1112 \def \additionalauthors {%
1113   \if \@gtrp{\@authorcount}{3}%
1114     \section{Additional Authors}%
1115     \label{@addauthors}%
1116     \noindent
1117     \@authori = 4
1118     {\let \\ = ,%
1119      \loop
1120        \textbf{\@name{\@authorname\romannumeral\@authori}},
1121        \@name{\@authoraffil\romannumeral\@authori},
1122        email: \@name{\@authoremail\romannumeral\@authori}.%
1123        \@increment \@authori
1124      \if \@notp{\@gtrp{\@authori}{\@authorcount}} \repeat}%
1125     \par
1126   \fi
1127   \global\@setflag \@addauthorsdone = \@true}
1128 \fi
1129
1130 \let \addauthorsection = \additionalauthors
1131
1132 \def \@placetitlenotes {
1133   \the\@titlenotetext}
1134 \f
1135 %                       Utilities
1136 %                       ---------
1137
1138
1139 \newcommand{\centeroncapheight}[1]{%
1140   {\setbox\@tempboxa = \hbox{#1}%
1141    \@measurecapheight{\@tempdima}%         % Calculate ht(CAP) - ht(text)
1142    \advance \@tempdima by -\ht\@tempboxa   %           ------------------
1143    \divide \@tempdima by 2                 %                   2
1144    \raise \@tempdima \box\@tempboxa}}
1145
1146 \newbox{\@measbox}
1147
1148 \def \@measurecapheight #1{%                            {\dimen}
1149   \setbox\@measbox = \hbox{ABCDEFGHIJKLMNOPQRSTUVWXYZ}%
1150   #1 = \ht\@measbox}
1151
1152 \long\def \@titlefootnote #1#2{%
1153   \insert\footins{%
1154     \reset@font\footnotesize
1155     \interlinepenalty\interfootnotelinepenalty
1156     \splittopskip\footnotesep
1157     \splitmaxdepth \dp\strutbox \floatingpenalty \@MM
1158     \hsize\columnwidth \@parboxrestore
1159 %%%    \protected@edef\@currentlabel{%
1160 %%%       \csname p@footnote\endcsname\@thefnmark}%
1161     \color@begingroup
1162       \def \@makefnmark {$^{#1}$}%
1163       \@makefntext{%
1164         \rule\z@\footnotesep\ignorespaces#2\@finalstrut\strutbox}%
1165     \color@endgroup}}
1166 \f
1167 %                       LaTeX Modifications
1168 %                       ----- -------------
1169
1170 \def \@seccntformat #1{%
1171   \@name{\the#1}%
1172   \@expandaftertwice\@seccntformata \csname the#1\endcsname.\@mark
1173   \quad}
1174
1175 \def \@seccntformata #1.#2\@mark{%
1176   \if \@emptyargp{#2}.\fi}
1177 \f
1178 %                       Revision History
1179 %                       -------- -------
1180
1181
1182 %  Date         Person  Ver.    Change
1183 %  ----         ------  ----    ------
1184
1185 %  2004.09.12   PCA     0.1--5  Preliminary development.
1186
1187 %  2004.11.18   PCA     0.5     Start beta testing.
1188
1189 %  2004.11.19   PCA     0.6     Obsolete \author and replace with
1190 %                               \authorinfo.
1191 %                               Add 'nocopyrightspace' option.
1192 %                               Compress article opener spacing.
1193 %                               Add 'mathtime' option.
1194 %                               Increase text height by 6 points.
1195
1196 %  2004.11.28   PCA     0.7     Add 'cm/computermodern' options.
1197 %                               Change default to Times text.
1198
1199 %  2004.12.14   PCA     0.8     Remove use of mathptm.sty; it cannot
1200 %                               coexist with latexsym or amssymb.
1201
1202 %  2005.01.20   PCA     0.9     Rename class file to sigplanconf.cls.
1203
1204 %  2005.03.05   PCA     0.91    Change default copyright data.
1205
1206 %  2005.03.06   PCA     0.92    Add at-signs to some macro names.
1207
1208 %  2005.03.07   PCA     0.93    The 'onecolumn' option defaults to '11pt',
1209 %                               and it uses the full type width.
1210
1211 %  2005.03.15   PCA     0.94    Add at-signs to more macro names.
1212 %                               Allow margin paragraphs during review.
1213
1214 %  2005.03.22   PCA     0.95    Implement \euro.
1215 %                               Remove proof and newdef environments.
1216
1217 %  2005.05.06   PCA     1.0     Eliminate 'onecolumn' option.
1218 %                               Change footer to small italic and eliminate
1219 %                               left portion if no \preprintfooter.
1220 %                               Eliminate copyright notice if preprint.
1221 %                               Clean up and shrink copyright box.
1222
1223 %  2005.05.30   PCA     1.1     Add alternate permission statements.
1224
1225 %  2005.06.29   PCA     1.1     Publish final first edition of guide.
1226
1227 %  2005.07.14   PCA     1.2     Add \subparagraph.
1228 %                               Use block paragraphs in lists, and adjust
1229 %                               spacing between items and paragraphs.
1230
1231 %  2006.06.22   PCA     1.3     Add 'reprint' option and associated
1232 %                               commands.
1233
1234 %  2006.08.24   PCA     1.4     Fix bug in \maketitle case command.
1235
1236 %  2007.03.13   PCA     1.5     The title banner only displays with the
1237 %                               'preprint' option.
1238
1239 %  2007.06.06   PCA     1.6     Use \bibfont in \thebibliography.
1240 %                               Add 'natbib' option to load and configure
1241 %                                 the natbib package.
1242
1243 %  2007.11.20   PCA     1.7     Balance line lengths in centered article
1244 %                                 title (thanks to Norman Ramsey).
1245
1246 %  2009.01.26   PCA     1.8     Change natbib \bibpunct values.
1247
1248 %  2009.03.24   PCA     1.9     Change natbib to use the 'numbers' option.
1249 %                               Change templates to use 'natbib' option.
1250
1251 %  2009.09.01   PCA     2.0     Add \reprintprice command (suggested by
1252 %                                 Stephen Chong).
1253
1254 %  2009.09.08   PCA     2.1     Make 'natbib' the default; add 'nonatbib'.
1255 %               SB              Add 'authoryear' and 'numbers' (default) to
1256 %                               control citation style when using natbib.
1257 %                               Add \bibpunct to change punctuation for
1258 %                               'authoryear' style.
1259
1260 %  2009.09.21   PCA     2.2     Add \softraggedright to the thebibliography
1261 %                               environment. Also add to template so it will
1262 %                               happen with natbib.
1263
1264 %  2009.09.30   PCA     2.3     Remove \softraggedright from thebibliography.
1265 %                               Just include in the template.
1266
1267 %  2010.05.24   PCA     2.4     Obfuscate author's email address.
1268
1269 %  2011.11.08   PCA     2.5     Add copyright notice to this file.
1270 %                               Remove 'sort' option from natbib when using
1271 %                                 'authoryear' style.
1272 %                               Add the \authorversion command.