elsarticle.cls

   1 %%
   2 %% This is file `elsarticle.cls',
   3 %% generated with the docstrip utility.
   4 %%
   5 %% The original source files were:
   6 %%
   7 %% elsarticle.dtx  (with options: `class')
   8 %%
   9 %% Copyright 2007, 2008, 2009 Elsevier Ltd
  10 %%
  11 %% This file is part of the 'Elsarticle Bundle'.
  12 %% -------------------------------------------
  13 %%
  14 %% It may be distributed under the conditions of the LaTeX Project Public
  15 %% License, either version 1.2 of this license or (at your option) any
  16 %% later version.  The latest version of this license is in
  17 %%    http://www.latex-project.org/lppl.txt
  18 %% and version 1.2 or later is part of all distributions of LaTeX
  19 %% version 1999/12/01 or later.
  20 %%
  21 %% The list of all files belonging to the 'Elsarticle Bundle' is
  22 %% given in the file `manifest.txt'.
  23 %%
  24 %%
  25 %% $Id: elsarticle.cls,v 1.20 2008-10-13 04:24:12 cvr Exp $
  26 %%
  27  \def\RCSfile{elsarticle}%
  28  \def\RCSversion{1.2.0}%
  29  \def\RCSdate{2009/09/17}%
  30  \def\@shortjnl{\relax}
  31  \def\@journal{Elsevier Ltd} \def\@company{Elsevier Ltd}
  32  \def\@issn{000-0000}
  33  \def\@shortjid{elsarticle}
  34 \NeedsTeXFormat{LaTeX2e}[1995/12/01]
  35 \ProvidesClass{\@shortjid}[\RCSdate, \RCSversion: \@journal]
  36 \def\ABD{\AtBeginDocument}
  37 \newif\ifpreprint \preprintfalse
  38 \newif\iflongmktitle \longmktitlefalse
  39
  40 \def\@blstr{1}
  41 \newdimen\@bls
  42 \@bls=\baselineskip
  43
  44 \def\@finalWarning{%
  45   *****************************************************\MessageBreak
  46    This document is typeset in the CRC style which\MessageBreak
  47    is not suitable for submission.\MessageBreak
  48    \MessageBreak
  49    Please typeset again using 'preprint' option\MessageBreak
  50    for creating PDF suitable for submission.\MessageBreak
  51   ******************************************************\MessageBreak
  52 }
  53
  54 \DeclareOption{preprint}{\global\preprinttrue
  55   \gdef\@blstr{1}\xdef\jtype{0}%
  56    \AtBeginDocument{\@twosidefalse\@mparswitchfalse}}
  57 \DeclareOption{final}{\gdef\@blstr{1}\global\preprintfalse}
  58 \DeclareOption{review}{\global\preprinttrue\gdef\@blstr{1.5}}
  59 \DeclareOption{authoryear}{\xdef\@biboptions{round,authoryear}}
  60 \DeclareOption{number}{\xdef\@biboptions{numbers}}
  61 \DeclareOption{numbers}{\xdef\@biboptions{numbers}}
  62 \DeclareOption{longtitle}{\global\longmktitletrue}
  63 \DeclareOption{5p}{\xdef\jtype{5}\global\preprintfalse
  64   \ExecuteOptions{twocolumn}}
  65   \def\jtype{0}
  66 \DeclareOption{3p}{\xdef\jtype{3}\global\preprintfalse}
  67 \DeclareOption{1p}{\xdef\jtype{1}\global\preprintfalse
  68   \AtBeginDocument{\@twocolumnfalse}}
  69 \DeclareOption{times}{\IfFileExists{txfonts.sty}%
  70   {\AtEndOfClass{\RequirePackage{txfonts}%
  71   \gdef\ttdefault{cmtt}%
  72    \let\iint\relax
  73   \let\iiint\relax
  74   \let\iiiint\relax
  75   \let\idotsint\relax
  76   \let\openbox\relax}}{\RequirePackage{times}}}
  77 \ExecuteOptions{a4paper,10pt,oneside,onecolumn,number,preprint}
  78 \DeclareOption*{\PassOptionsToClass{\CurrentOption}{article}}
  79 \ProcessOptions
  80 \LoadClass{article}
  81 \RequirePackage{graphicx}
  82 \let\comma\@empty
  83 \let\tnotesep\@empty
  84 \def\title#1{\gdef\@title{#1}}
  85 \let\@title\@empty
  86
  87 \def\elsLabel#1{\@bsphack\protected@write\@auxout{}%
  88          {\string\Newlabel{#1}{\@currentlabel}}\@esphack}
  89 \def\Newlabel#1#2{\expandafter\xdef\csname X@#1\endcsname{#2}}
  90
  91 \def\elsRef#1{\@ifundefined{X@#1}{0}{\csname X@#1\endcsname}%
  92 }
  93
  94 \def\tnotemark[#1]{\textsuperscript{\@for\@@tmark:=#1\do{%
  95       \edef\tnotenum{\@ifundefined{X@\@@tmark}{1}{\elsRef{\@@tmark}}}%
  96       \ifcase\tnotenum\or\ding{73}\or,\ding{73}\ding{73}\fi}}%
  97 }
  98 \let\@tnotemark\@empty
  99
 100 \let\@tnotes\@empty
 101 \RequirePackage{pifont}
 102 \newcounter{tnote}
 103 \def\tnotetext[#1]#2{\g@addto@macro\@tnotes{%
 104   \refstepcounter{tnote}\elsLabel{#1}%
 105    \def\thefootnote{\ifcase\c@tnote\or\ding{73}\or\ding{73}\ding{73}\fi}%
 106     \footnotetext{#2}}}
 107
 108 \let\@nonumnotes\@empty
 109 \def\nonumnote#1{\g@addto@macro\@nonumnotes{%
 110      \let\thefootnote\relax\footnotetext{#1}}}
 111
 112 \newcounter{fnote}
 113 \def\fnmark[#1]{\let\comma\@empty
 114     \def\@fnmark{\@for\@@fnmark:=#1\do{%
 115     \edef\fnotenum{\@ifundefined{X@\@@fnmark}{1}{\elsRef{\@@fnmark}}}%
 116   \unskip\comma\fnotenum\let\comma,}}%
 117 }
 118
 119 \let\@fnotes\@empty\let\@fnmark\@empty
 120 \def\fntext[#1]#2{\g@addto@macro\@fnotes{%
 121      \refstepcounter{fnote}\elsLabel{#1}%
 122    \def\thefootnote{\thefnote}%
 123    \global\setcounter{footnote}{\thefnote}%
 124    \footnotetext{#2}}}
 125
 126 \def\cormark[#1]{\edef\cnotenum{\elsRef{#1}}%
 127     \unskip\textsuperscript{\sep\ifcase\cnotenum\or
 128        $\ast$\or$\ast\ast$\fi\hspace{-1pt}}\let\sep=,}
 129
 130 \let\@cormark\@empty
 131 \let\@cornotes\@empty
 132 \newcounter{cnote}
 133 \def\cortext[#1]#2{\g@addto@macro\@cornotes{%
 134     \refstepcounter{cnote}\elsLabel{#1}%
 135     \def\thefootnote{\ifcase\thecnote\or$\ast$\or
 136     $\ast\ast$\fi}%
 137     \footnotetext{#2}}}
 138
 139 \let\@corref\@empty
 140 \def\corref#1{\edef\cnotenum{\elsRef{#1}}%
 141     \edef\@corref{\ifcase\cnotenum\or
 142          $\ast$\or$\ast\ast$\fi\hskip-1pt}}
 143
 144 \def\fnref#1{\fnmark[#1]}
 145 \def\tnoteref#1{\tnotemark[#1]}
 146
 147 \def\resetTitleCounters{\c@cnote=0
 148    \c@fnote=0 \c@tnote=0 \c@footnote=0}
 149
 150 \let\eadsep\@empty
 151 \let\@elseads\@empty
 152 \let\@elsuads\@empty
 153 \let\@cormark\@empty
 154 \def\hashchar{\expandafter\@gobble\string\~}
 155 \def\underscorechar{\expandafter\@gobble\string\_}
 156 \def\lbracechar{\expandafter\@gobble\string\{}
 157 \def\rbracechar{\expandafter\@gobble\string\}}
 158
 159 \def\ead{\@ifnextchar[{\@uad}{\@ead}}
 160 \gdef\@ead#1{\bgroup\def\_{\string\underscorechar\space}%
 161   \def\{{\string\lbracechar\space}%
 162    \def~{\hashchar\space}%
 163    \def\}{\string\rbracechar\space}%
 164    \edef\tmp{\the\@eadauthor}
 165    \immediate\write\@auxout{\string\emailauthor
 166      {#1}{\expandafter\strip@prefix\meaning\tmp}}%
 167   \egroup
 168 }
 169 \newcounter{ead}
 170 \gdef\emailauthor#1#2{\stepcounter{ead}%
 171      \g@addto@macro\@elseads{\raggedright%
 172       \let\corref\@gobble
 173       \eadsep\texttt{#1} (#2)\def\eadsep{\unskip,\space}}%
 174 }
 175 \gdef\@uad[#1]#2{\bgroup
 176   \def~{\string\hashchar\space}%
 177   \def\_{\string\underscorechar\space}%
 178    \edef\tmp{\the\@eadauthor}
 179    \immediate\write\@auxout{\string\urlauthor
 180      {#2}{\expandafter\strip@prefix\meaning\tmp}}%
 181   \egroup
 182 }
 183 \def\urlauthor#1#2{\g@addto@macro\@elsuads{\let\corref\@gobble%
 184      \raggedright\eadsep\texttt{#1}\space(#2)%
 185      \def\eadsep{\unskip,\space}}%
 186 }
 187
 188 \def\elsauthors{}
 189 \def\pprinttitle{}
 190 \let\authorsep\@empty
 191 \let\sep\@empty
 192 \newcounter{author}
 193 \def\author{\@ifnextchar[{\@@author}{\@author}}
 194
 195 \newtoks\@eadauthor
 196 \def\@@author[#1]#2{\g@addto@macro\elsauthors{%
 197     \def\baselinestretch{1}%
 198     \authorsep#2\unskip\textsuperscript{%#1%
 199       \@for\@@affmark:=#1\do{%
 200        \edef\affnum{\@ifundefined{X@\@@affmark}{1}{\elsRef{\@@affmark}}}%
 201      \unskip\sep\affnum\let\sep=,}%
 202       \ifx\@fnmark\@empty\else\unskip\sep\@fnmark\let\sep=,\fi
 203       \ifx\@corref\@empty\else\unskip\sep\@corref\let\sep=,\fi
 204       }%
 205     \def\authorsep{\unskip,\space}%
 206     \global\let\sep\@empty\global\let\@corref\@empty
 207     \global\let\@fnmark\@empty}%
 208     \@eadauthor={#2}
 209 }
 210
 211 \def\@author#1{\g@addto@macro\elsauthors{\normalsize%
 212     \def\baselinestretch{1}%
 213     \upshape\authorsep#1\unskip\textsuperscript{%
 214       \ifx\@fnmark\@empty\else\unskip\sep\@fnmark\let\sep=,\fi
 215       \ifx\@corref\@empty\else\unskip\sep\@corref\let\sep=,\fi
 216       }%
 217     \def\authorsep{\unskip,\space}%
 218     \global\let\@fnmark\@empty
 219     \global\let\sep\@empty}%
 220     \@eadauthor={#1}
 221 }
 222
 223 \def\elsaddress{}
 224 \def\addsep{\par\vskip6pt}
 225 \def\address{\@ifnextchar[{\@@address}{\@address}}
 226
 227 \def\@alph#1{%
 228   \ifcase#1\or a\or b\or c\or d\or e\or f\or g\or h\or i\or j\or k\or
 229   l\or m\or n\or o\or p\or q\or r\or s\or t\or u\or v\or w\or x\or
 230   y\or z%
 231   \or aa\or ab\or ac\or ad\or ae\or af\or ag\or ah\or ai\or aj\or
 232   ak\or al\or am\or an\or ao\or ap\or aq\or ar\or as\or at\or au\or
 233   av\or aw\or ax\or ay\or az%
 234   \or ba\or bb\or bc\or bd\or be\or bf\or bg\or bh\or bi\or bj\or
 235   bk\or bl\or bm\or bn\or bo\or bp\or bq\or br\or bs\or bt\or bu\or
 236   bv\or bw\or bx\or by\or bz%
 237   \or ca\or cb\or cc\or cd\or ce\or cf\or cg\or ch\or ci\or cj\or
 238   ck\or cl\or cm\or cn\or co\or cp\or cq\or cr\or cs\or ct\or cu\or
 239   cv\or cw\or cx\or cy\or cz%
 240   \or da\or db\or dc\or dd\or de\or df\or dg\or dh\or di\or dj\or
 241   dk\or dl\or dm\or dn\or do\or dp\or dq\or dr\or ds\or dt\or du\or
 242   dv\or dw\or dx\or dy\or dz%
 243   \or ea\or eb\or ec\or ed\or ee\or ef\or eg\or eh\or ei\or ej\or
 244   ek\or el\or em\or en\or eo\or ep\or eq\or er\or es\or et\or eu\or
 245   ev\or ew\or ex\or ey\or ez%
 246   \or fa\or fb\or fc\or fd\or fe\or ff\or fg\or fh\or fi\or fj\or
 247   fk\or fl\or fm\or fn\or fo\or fp\or fq\or fr\or fs\or ft\or fu\or
 248   fv\or fw\or fx\or fy\or fz%
 249   \or ga\or gb\or gc\or gd\or ge\or gf\or gg\or gh\or gi\or gj\or
 250   gk\or gl\or gm\or gn\or go\or gp\or gq\or gr\or gs\or gt\or gu\or
 251   gv\or gw\or gx\or gy\or gz%
 252   \else\@ctrerr\fi}
 253
 254 \newcounter{affn}
 255 \renewcommand\theaffn{\alph{affn}}
 256
 257 \long\def\@@address[#1]#2{\g@addto@macro\elsaddress{%
 258     \def\baselinestretch{1}%
 259      \refstepcounter{affn}
 260      \xdef\@currentlabel{\theaffn}
 261      \elsLabel{#1}%
 262     \textsuperscript{\theaffn}#2\par}}
 263
 264 \long\def\@address#1{\g@addto@macro\elsauthors{%
 265     \def\baselinestretch{1}%
 266     \addsep\footnotesize\itshape#1\def\addsep{\par\vskip6pt}%
 267     \def\authorsep{\par\vskip8pt}}}
 268
 269 \newbox\absbox
 270 \renewenvironment{abstract}{\global\setbox\absbox=\vbox\bgroup
 271   \hsize=\textwidth\def\baselinestretch{1}%
 272   \noindent\unskip\textbf{Abstract}
 273  \par\medskip\noindent\unskip\ignorespaces}
 274  {\egroup}
 275
 276 \newbox\keybox
 277 \def\keyword{%
 278   \def\sep{\unskip, }%
 279  \def\MSC{\@ifnextchar[{\@MSC}{\@MSC[2000]}}
 280   \def\@MSC[##1]{\par\leavevmode\hbox {\it ##1~MSC:\space}}%
 281   \def\PACS{\par\leavevmode\hbox {\it PACS:\space}}%
 282   \def\JEL{\par\leavevmode\hbox {\it JEL:\space}}%
 283   \global\setbox\keybox=\vbox\bgroup\hsize=\textwidth
 284   \normalsize\normalfont\def\baselinestretch{1}
 285   \parskip\z@
 286   \noindent\textit{Keywords: }
 287   \raggedright                         % Keywords are not justified.
 288   \ignorespaces}
 289 \def\endkeyword{\par \egroup}
 290
 291 \newdimen\Columnwidth
 292 \Columnwidth=\columnwidth
 293
 294 \def\printFirstPageNotes{%
 295   \iflongmktitle
 296    \let\columnwidth=\textwidth\fi
 297   \ifx\@tnotes\@empty\else\@tnotes\fi
 298   \ifx\@nonumnotes\@empty\else\@nonumnotes\fi
 299   \ifx\@cornotes\@empty\else\@cornotes\fi
 300   \ifx\@elseads\@empty\relax\else
 301    \let\thefootnote\relax
 302    \footnotetext{\ifnum\theead=1\relax
 303       \textit{Email address:\space}\else
 304       \textit{Email addresses:\space}\fi
 305      \@elseads}\fi
 306   \ifx\@elsuads\@empty\relax\else
 307    \let\thefootnote\relax
 308    \footnotetext{\textit{URL:\space}%
 309      \@elsuads}\fi
 310   \ifx\@fnotes\@empty\else\@fnotes\fi
 311   \iflongmktitle\if@twocolumn
 312    \let\columnwidth=\Columnwidth\fi\fi
 313 }
 314
 315 \long\def\pprintMaketitle{\clearpage
 316   \iflongmktitle\if@twocolumn\let\columnwidth=\textwidth\fi\fi
 317   \resetTitleCounters
 318   \def\baselinestretch{1}%
 319   \printFirstPageNotes
 320   \begin{center}%
 321  \thispagestyle{pprintTitle}%
 322    \def\baselinestretch{1}%
 323     \Large\@title\par\vskip18pt
 324     \normalsize\elsauthors\par\vskip10pt
 325     \footnotesize\itshape\elsaddress\par\vskip36pt
 326     \hrule\vskip12pt
 327     \ifvoid\absbox\else\unvbox\absbox\par\vskip10pt\fi
 328     \ifvoid\keybox\else\unvbox\keybox\par\vskip10pt\fi
 329     \hrule\vskip12pt
 330     \end{center}%
 331   \gdef\thefootnote{\arabic{footnote}}%
 332   }
 333
 334 \def\printWarning{%
 335      \mbox{}\par\vfill\par\bgroup
 336      \fboxsep12pt\fboxrule1pt
 337      \hspace*{.18\textwidth}
 338      \fcolorbox{gray50}{gray10}{\box\warnbox}
 339      \egroup\par\vfill\thispagestyle{empty}
 340      \setcounter{page}{0}
 341      \clearpage}
 342
 343 \long\def\finalMaketitle{%
 344   \resetTitleCounters
 345   \def\baselinestretch{1}%
 346    \MaketitleBox
 347    \thispagestyle{pprintTitle}%
 348   \gdef\thefootnote{\arabic{footnote}}%
 349   }
 350
 351 \long\def\MaketitleBox{%
 352   \resetTitleCounters
 353   \def\baselinestretch{1}%
 354   \begin{center}%
 355    \def\baselinestretch{1}%
 356     \Large\@title\par\vskip18pt
 357     \normalsize\elsauthors\par\vskip10pt
 358     \footnotesize\itshape\elsaddress\par\vskip36pt
 359     \hrule\vskip12pt
 360     \ifvoid\absbox\else\unvbox\absbox\par\vskip10pt\fi
 361     \ifvoid\keybox\else\unvbox\keybox\par\vskip10pt\fi
 362     \hrule\vskip12pt
 363     \end{center}%
 364   }
 365
 366 \def\FNtext#1{\par\bgroup\footnotesize#1\egroup}
 367 \newdimen\space@left
 368 \def\alarm#1{\typeout{******************************}%
 369              \typeout{#1}%
 370              \typeout{******************************}%
 371 }
 372 \long\def\getSpaceLeft{%\global\@twocolumnfalse%
 373    \global\setbox0=\vbox{\hsize=\textwidth\MaketitleBox}%
 374    \global\setbox1=\vbox{\hsize=\textwidth
 375     \let\footnotetext\FNtext
 376     \printFirstPageNotes}%
 377     \xdef\noteheight{\the\ht1}%
 378     \xdef\titleheight{\the\ht0}%
 379     \@tempdima=\vsize
 380     \advance\@tempdima-\noteheight
 381     \advance\@tempdima-1\baselineskip
 382 }
 383
 384   \skip\footins=24pt
 385
 386 \newbox\els@boxa
 387 \newbox\els@boxb
 388
 389 \ifpreprint
 390   \def\maketitle{\pprintMaketitle}
 391   \else
 392    \ifnum\jtype=1
 393     \def\maketitle{%
 394       \iflongmktitle\getSpaceLeft
 395        \global\setbox\els@boxa=\vsplit0 to \@tempdima
 396        \box\els@boxa\par\resetTitleCounters
 397        \thispagestyle{pprintTitle}%
 398        \printFirstPageNotes
 399        \box0%
 400       \else
 401        \finalMaketitle\printFirstPageNotes
 402       \fi
 403     \gdef\thefootnote{\arabic{footnote}}}%
 404   \else
 405  \ifnum\jtype=5
 406     \def\maketitle{%
 407       \iflongmktitle\getSpaceLeft
 408        \global\setbox\els@boxa=\vsplit0 to \@tempdima
 409        \box\els@boxa\par\resetTitleCounters
 410        \thispagestyle{pprintTitle}%
 411        \printFirstPageNotes
 412        \twocolumn[\box0]%\printFirstPageNotes
 413       \else
 414        \twocolumn[\finalMaketitle]\printFirstPageNotes
 415      \fi
 416      \gdef\thefootnote{\arabic{footnote}}}
 417   \else
 418   \if@twocolumn
 419     \def\maketitle{%
 420       \iflongmktitle\getSpaceLeft
 421        \global\setbox\els@boxa=\vsplit0 to \@tempdima
 422        \box\els@boxa\par\resetTitleCounters
 423        \thispagestyle{pprintTitle}%
 424        \printFirstPageNotes
 425        \twocolumn[\box0]%
 426       \else
 427        \twocolumn[\finalMaketitle]\printFirstPageNotes
 428       \fi
 429      \gdef\thefootnote{\arabic{footnote}}}%
 430    \else
 431     \def\maketitle{%
 432       \iflongmktitle\getSpaceLeft
 433        \global\setbox\els@boxa=\vsplit0 to \@tempdima
 434        \box\els@boxa\par\resetTitleCounters
 435        \thispagestyle{pprintTitle}%
 436        \printFirstPageNotes
 437        \box0%
 438      \else
 439        \finalMaketitle\printFirstPageNotes
 440       \fi
 441     \gdef\thefootnote{\arabic{footnote}}}%
 442    \fi
 443   \fi
 444  \fi
 445 \fi
 446 \def\ps@pprintTitle{%
 447      \let\@oddhead\@empty
 448      \let\@evenhead\@empty
 449      \def\@oddfoot{\footnotesize\itshape
 450        Preprint submitted to \ifx\@journal\@empty Elsevier
 451        \else\@journal\fi\hfill\today}%
 452      \let\@evenfoot\@oddfoot}
 453 \def\@seccntDot{.}
 454 \def\@seccntformat#1{\csname the#1\endcsname\@seccntDot\hskip 0.5em}
 455
 456 \renewcommand\section{\@startsection {section}{1}{\z@}%
 457            {18\p@ \@plus 6\p@ \@minus 3\p@}%
 458            {9\p@ \@plus 6\p@ \@minus 3\p@}%
 459            {\normalsize\bfseries\boldmath}}
 460 \renewcommand\subsection{\@startsection{subsection}{2}{\z@}%
 461            {12\p@ \@plus 6\p@ \@minus 3\p@}%
 462            {3\p@ \@plus 6\p@ \@minus 3\p@}%
 463            {\normalfont\normalsize\itshape}}
 464 \renewcommand\subsubsection{\@startsection{subsubsection}{3}{\z@}%
 465            {12\p@ \@plus 6\p@ \@minus 3\p@}%
 466            {\p@}%
 467            {\normalfont\normalsize\itshape}}
 468
 469 \def\paragraph{\secdef{\els@aparagraph}{\els@bparagraph}}
 470 \def\els@aparagraph[#1]#2{\elsparagraph[#1]{#2.}}
 471 \def\els@bparagraph#1{\elsparagraph*{#1.}}
 472
 473 \newcommand\elsparagraph{\@startsection{paragraph}{4}{0\z@}%
 474            {10\p@ \@plus 6\p@ \@minus 3\p@}%
 475            {-6\p@}%
 476            {\normalfont\itshape}}
 477 \newdimen\leftMargin
 478 \leftMargin=2em
 479 \newtoks\@enLab  %\newtoks\@enfont
 480 \def\@enQmark{?}
 481 \def\@enLabel#1#2{%
 482   \edef\@enThe{\noexpand#1{\@enumctr}}%
 483   \@enLab\expandafter{\the\@enLab\csname the\@enumctr\endcsname}%
 484   \@enloop}
 485 \def\@enSpace{\afterassignment\@enSp@ce\let\@tempa= }
 486 \def\@enSp@ce{\@enLab\expandafter{\the\@enLab\space}\@enloop}
 487 \def\@enGroup#1{\@enLab\expandafter{\the\@enLab{#1}}\@enloop}
 488 \def\@enOther#1{\@enLab\expandafter{\the\@enLab#1}\@enloop}
 489 \def\@enloop{\futurelet\@entemp\@enloop@}
 490 \def\@enloop@{%
 491   \ifx A\@entemp         \def\@tempa{\@enLabel\Alph  }\else
 492   \ifx a\@entemp         \def\@tempa{\@enLabel\alph  }\else
 493   \ifx i\@entemp         \def\@tempa{\@enLabel\roman }\else
 494   \ifx I\@entemp         \def\@tempa{\@enLabel\Roman }\else
 495   \ifx 1\@entemp         \def\@tempa{\@enLabel\arabic}\else
 496   \ifx \@sptoken\@entemp \let\@tempa\@enSpace         \else
 497   \ifx \bgroup\@entemp   \let\@tempa\@enGroup         \else
 498   \ifx \@enum@\@entemp   \let\@tempa\@gobble          \else
 499                          \let\@tempa\@enOther
 500              \fi\fi\fi\fi\fi\fi\fi\fi
 501   \@tempa}
 502 \newlength{\@sep} \newlength{\@@sep}
 503 \setlength{\@sep}{.5\baselineskip plus.2\baselineskip
 504             minus.2\baselineskip}
 505 \setlength{\@@sep}{.1\baselineskip plus.01\baselineskip
 506             minus.05\baselineskip}
 507 \providecommand{\sfbc}{\rmfamily\upshape}
 508 \providecommand{\sfn}{\rmfamily\upshape}
 509 \def\@enfont{\ifnum \@enumdepth >1\let\@nxt\sfn \else\let\@nxt\sfbc \fi\@nxt}
 510 \def\enumerate{%
 511    \ifnum \@enumdepth >3 \@toodeep\else
 512       \advance\@enumdepth \@ne
 513       \edef\@enumctr{enum\romannumeral\the\@enumdepth}\fi
 514    \@ifnextchar[{\@@enum@}{\@enum@}}
 515 \def\@@enum@[#1]{%
 516   \@enLab{}\let\@enThe\@enQmark
 517   \@enloop#1\@enum@
 518   \ifx\@enThe\@enQmark\@warning{The counter will not be printed.%
 519    ^^J\space\@spaces\@spaces\@spaces The label is: \the\@enLab}\fi
 520   \expandafter\edef\csname label\@enumctr\endcsname{\the\@enLab}%
 521   \expandafter\let\csname the\@enumctr\endcsname\@enThe
 522   \csname c@\@enumctr\endcsname7
 523   \expandafter\settowidth
 524             \csname leftmargin\romannumeral\@enumdepth\endcsname
 525             {\the\@enLab\hskip\labelsep}%
 526   \@enum@}
 527 \def\@enum@{\list{{\@enfont\csname label\@enumctr\endcsname}}%
 528            {\usecounter{\@enumctr}\def\makelabel##1{\hss\llap{##1}}%
 529      \ifnum \@enumdepth>1\setlength{\topsep}{\@@sep}\else
 530            \setlength{\topsep}{\@sep}\fi
 531      \ifnum \@enumdepth>1\setlength{\itemsep}{0pt plus1pt minus1pt}%
 532       \else \setlength{\itemsep}{\@@sep}\fi
 533      %\setlength\leftmargin{\leftMargin}%%%{1.8em}
 534      \setlength{\parsep}{0pt plus1pt minus1pt}%
 535      \setlength{\parskip}{0pt plus1pt minus1pt}
 536                    }}
 537
 538 \def\endenumerate{\par\ifnum \@enumdepth >1\addvspace{\@@sep}\else
 539            \addvspace{\@sep}\fi \endlist}
 540
 541 \def\sitem{\@noitemargtrue\@item[\@itemlabel *]}
 542
 543 \def\itemize{\@ifnextchar[{\@Itemize}{\@Itemize[]}}
 544
 545 \def\@Itemize[#1]{\def\next{#1}%
 546   \ifnum \@itemdepth >\thr@@\@toodeep\else
 547    \advance\@itemdepth\@ne
 548   \ifx\next\@empty\else\expandafter\def\csname
 549    labelitem\romannumeral\the\@itemdepth\endcsname{#1}\fi%
 550   \edef\@itemitem{labelitem\romannumeral\the\@itemdepth}%
 551   \expandafter\list\csname\@itemitem\endcsname
 552   {\def\makelabel##1{\hss\llap{##1}}}%
 553  \fi}
 554 \def\newdefinition#1{%
 555   \@ifnextchar[{\@odfn{#1}}{\@ndfn{#1}}}%]
 556 \def\@ndfn#1#2{%
 557   \@ifnextchar[{\@xndfn{#1}{#2}}{\@yndfn{#1}{#2}}}
 558 \def\@xndfn#1#2[#3]{%
 559   \expandafter\@ifdefinable\csname #1\endcsname
 560     {\@definecounter{#1}\@newctr{#1}[#3]%
 561      \expandafter\xdef\csname the#1\endcsname{%
 562        \expandafter\noexpand\csname the#3\endcsname \@dfncountersep
 563           \@dfncounter{#1}}%
 564      \global\@namedef{#1}{\@dfn{#1}{#2}}%
 565      \global\@namedef{end#1}{\@enddefinition}}}
 566 \def\@yndfn#1#2{%
 567   \expandafter\@ifdefinable\csname #1\endcsname
 568     {\@definecounter{#1}%
 569      \expandafter\xdef\csname the#1\endcsname{\@dfncounter{#1}}%
 570      \global\@namedef{#1}{\@dfn{#1}{#2}}%
 571      \global\@namedef{end#1}{\@enddefinition}}}
 572 \def\@odfn#1[#2]#3{%
 573   \@ifundefined{c@#2}{\@nocounterr{#2}}%
 574     {\expandafter\@ifdefinable\csname #1\endcsname
 575     {\global\@namedef{the#1}{\@nameuse{the#2}}
 576   \global\@namedef{#1}{\@dfn{#2}{#3}}%
 577   \global\@namedef{end#1}{\@enddefinition}}}}
 578 \def\@dfn#1#2{%
 579   \refstepcounter{#1}%
 580   \@ifnextchar[{\@ydfn{#1}{#2}}{\@xdfn{#1}{#2}}}
 581 \def\@xdfn#1#2{%
 582   \@begindefinition{#2}{\csname the#1\endcsname}\ignorespaces}
 583 \def\@ydfn#1#2[#3]{%
 584   \@opargbegindefinition{#2}{\csname the#1\endcsname}{#3}\ignorespaces}
 585 \def\@dfncounter#1{\noexpand\arabic{#1}}
 586 \def\@dfncountersep{.}
 587 \def\@begindefinition#1#2{\trivlist
 588    \item[\hskip\labelsep{\bfseries #1\ #2.}]\upshape}
 589 \def\@opargbegindefinition#1#2#3{\trivlist
 590       \item[\hskip\labelsep{\bfseries #1\ #2\ (#3).}]\upshape}
 591 \def\@enddefinition{\endtrivlist}
 592
 593 \def\@begintheorem#1#2{\trivlist
 594   \let\baselinestretch\@blstr
 595    \item[\hskip \labelsep{\bfseries #1\ #2.}]\itshape}
 596 \def\@opargbegintheorem#1#2#3{\trivlist
 597   \let\baselinestretch\@blstr
 598       \item[\hskip \labelsep{\bfseries #1\ #2\ (#3).}]\itshape}
 599
 600 \def\newproof#1{%
 601   \@ifnextchar[{\@oprf{#1}}{\@nprf{#1}}}
 602 \def\@nprf#1#2{%
 603   \@ifnextchar[{\@xnprf{#1}{#2}}{\@ynprf{#1}{#2}}}
 604 \def\@xnprf#1#2[#3]{%
 605   \expandafter\@ifdefinable\csname #1\endcsname
 606     {\@definecounter{#1}\@newctr{#1}[#3]%
 607      \expandafter\xdef\csname the#1\endcsname{%
 608        \expandafter\noexpand\csname the#3\endcsname \@prfcountersep
 609           \@prfcounter{#1}}%
 610      \global\@namedef{#1}{\@prf{#1}{#2}}%
 611      \global\@namedef{end#1}{\@endproof}}}
 612 \def\@ynprf#1#2{%
 613   \expandafter\@ifdefinable\csname #1\endcsname
 614     {\@definecounter{#1}%
 615      \expandafter\xdef\csname the#1\endcsname{\@prfcounter{#1}}%
 616      \global\@namedef{#1}{\@prf{#1}{#2}}%
 617      \global\@namedef{end#1}{\@endproof}}}
 618 \def\@oprf#1[#2]#3{%
 619   \@ifundefined{c@#2}{\@nocounterr{#2}}%
 620     {\expandafter\@ifdefinable\csname #1\endcsname
 621     {\global\@namedef{the#1}{\@nameuse{the#2}}%
 622   \global\@namedef{#1}{\@prf{#2}{#3}}%
 623   \global\@namedef{end#1}{\@endproof}}}}
 624 \def\@prf#1#2{%
 625   \refstepcounter{#1}%
 626   \@ifnextchar[{\@yprf{#1}{#2}}{\@xprf{#1}{#2}}}
 627 \def\@xprf#1#2{%
 628   \@beginproof{#2}{\csname the#1\endcsname}\ignorespaces}
 629 \def\@yprf#1#2[#3]{%
 630   \@opargbeginproof{#2}{\csname the#1\endcsname}{#3}\ignorespaces}
 631 \def\@prfcounter#1{\noexpand\arabic{#1}}
 632 \def\@prfcountersep{.}
 633 \def\@beginproof#1#2{\trivlist\let\baselinestretch\@blstr
 634    \item[\hskip \labelsep{\scshape #1.}]\rmfamily}
 635 \def\@opargbeginproof#1#2#3{\trivlist\let\baselinestretch\@blstr
 636       \item[\hskip \labelsep{\scshape #1\ (#3).}]\rmfamily}
 637 \def\@endproof{\endtrivlist}
 638 \newcommand*{\qed}{\hbox{}\hfill$\Box$}
 639
 640 \@ifundefined{@biboptions}{\xdef\@biboptions{numbers}}{}
 641 \InputIfFileExists{\jobname.spl}{}{}
 642 \RequirePackage[\@biboptions]{natbib}
 643
 644 \newwrite\splwrite
 645 \immediate\openout\splwrite=\jobname.spl
 646 \def\biboptions#1{\def\next{#1}\immediate\write\splwrite{%
 647    \string\g@addto@macro\string\@biboptions{%
 648     ,\expandafter\strip@prefix\meaning\next}}}
 649
 650 \let\baselinestretch=\@blstr
 651
 652 \ifnum\jtype=1
 653  \RequirePackage{geometry}
 654  \geometry{twoside,
 655   paperwidth=210mm,
 656   paperheight=297mm,
 657   textheight=562pt,
 658   textwidth=384pt,
 659   centering,
 660   headheight=50pt,
 661   headsep=12pt,
 662   footskip=12pt,
 663   footnotesep=24pt plus 2pt minus 12pt,
 664  }
 665  \global\let\bibfont=\footnotesize
 666  \global\bibsep=0pt
 667  \if@twocolumn\global\@twocolumnfalse\fi
 668 \else\ifnum\jtype=3
 669  \RequirePackage{geometry}
 670  \geometry{twoside,
 671   paperwidth=210mm,
 672   paperheight=297mm,
 673   textheight=622pt,
 674   textwidth=468pt,
 675   centering,
 676   headheight=50pt,
 677   headsep=12pt,
 678   footskip=18pt,
 679   footnotesep=24pt plus 2pt minus 12pt,
 680   columnsep=2pc
 681  }
 682  \global\let\bibfont=\footnotesize
 683  \global\bibsep=0pt
 684  \if@twocolumn\input{fleqn.clo}\fi
 685 \else\ifnum\jtype=5
 686  \RequirePackage{geometry}
 687  \geometry{twoside,
 688   paperwidth=210mm,
 689   paperheight=297mm,
 690   textheight=682pt,
 691   textwidth=522pt,
 692   centering,
 693  headheight=50pt,
 694   headsep=12pt,
 695   footskip=18pt,
 696   footnotesep=24pt plus 2pt minus 12pt,
 697   columnsep=18pt
 698  }%
 699  \global\let\bibfont=\footnotesize
 700  \global\bibsep=0pt
 701  \input{fleqn.clo}
 702  \global\@twocolumntrue
 703 %%
 704 %% End of option '5p'
 705 %%
 706 \fi\fi\fi
 707 \def\journal#1{\gdef\@journal{#1}}
 708  \let\@journal\@empty
 709 \newenvironment{frontmatter}{}{\maketitle}
 710
 711 \long\def\@makecaption#1#2{%
 712   \vskip\abovecaptionskip\footnotesize
 713   \sbox\@tempboxa{#1: #2}%
 714   \ifdim \wd\@tempboxa >\hsize
 715     #1: #2\par
 716   \else
 717     \global \@minipagefalse
 718     \hb@xt@\hsize{\hfil\box\@tempboxa\hfil}%
 719   \fi
 720   \vskip\belowcaptionskip}
 721
 722 \AtBeginDocument{\@ifpackageloaded{hyperref}
 723   {\def\@linkcolor{blue}
 724    \def\@anchorcolor{blue}
 725    \def\@citecolor{blue}
 726    \def\@filecolor{blue}
 727    \def\@urlcolor{blue}
 728    \def\@menucolor{blue}
 729    \def\@pagecolor{blue}
 730 \begingroup
 731   \@makeother\`%
 732   \@makeother\=%
 733   \edef\x{%
 734     \edef\noexpand\x{%
 735       \endgroup
 736       \noexpand\toks@{%
 737         \catcode 96=\noexpand\the\catcode`\noexpand\`\relax
 738         \catcode 61=\noexpand\the\catcode`\noexpand\=\relax
 739       }%
 740     }%
 741     \noexpand\x
 742   }%
 743 \x
 744 \@makeother\`
 745 \@makeother\=
 746 }{}}
 747 %%
 748 \renewcommand\appendix{\par
 749   \setcounter{section}{0}%
 750   \setcounter{subsection}{0}%
 751   \setcounter{equation}{0}
 752   \gdef\thefigure{\@Alph\c@section.\arabic{figure}}%
 753   \gdef\thetable{\@Alph\c@section.\arabic{table}}%
 754   \gdef\thesection{\appendixname\@Alph\c@section}%
 755   \@addtoreset{equation}{section}%
 756   \gdef\theequation{\@Alph\c@section.\arabic{equation}}%
 757 }
 758 \def\appendixname{Appendix }
 759
 760 %% Added for work with amsrefs.sty
 761
 762 \@ifpackageloaded{amsrefs}%
 763   {}
 764   {\let\bibsection\relax%
 765   \AtBeginDocument{\def\cites@b#1#2,#3{%
 766     \begingroup[%
 767         \toks@{\InnerCite{#2}#1}%
 768         \ifx\@empty#3\@xp\@gobble\fi
 769         \cites@c#3%
 770 }}}
 771 %%
 772 \endinput
 773 %%
 774 %% End of file `elsarticle.cls'.