# -*- mode: Perl -*-
# /=====================================================================\ #
# |  ams_support                                                        | #
# | Implementation for LaTeXML                                          | #
# |=====================================================================| #
# | Part of LaTeXML:                                                    | #
# |  Public domain software, produced as part of work done by the       | #
# |  United States Government & not subject to copyright in the US.     | #
# |---------------------------------------------------------------------| #
# | Thanks to the arXMLiv group for initial implementation              | #
# |    http://arxmliv.kwarc.info/                                       | #
# | Released to the Public Domain                                       | #
# |---------------------------------------------------------------------| #
# | Bruce Miller <bruce.miller@nist.gov>                        #_#     | #
# | http://dlmf.nist.gov/LaTeXML/                              (o o)    | #
# \=========================================================ooo==U==ooo=/ #
package LaTeXML::Package::Pool;
use strict;
use warnings;
use LaTeXML::Package;

#**********************************************************************
# Document structure.

Let('\@xp', '\expandafter');
Let('\@nx', '\noexpand');

# None of the options are vital, I think; deferred.
# [though loading an unwanted amsfonts (noamsfonts) could be an issue]

foreach my $option (qw(a4paper letterpaper landscape portrait
  oneside twoside draft final  e-only
  titlepage notitlepage
  openright openany onecolumn twocolumn
  nomath noamsfonts psamsfonts
  leqno reqno centertags tbtags fleqn
  8pt 9pt 10pt 11pt 12pt
  makeidx)) {
  DeclareOption($option, undef); }
ProcessOptions();

# #======================================================================
# % Font size commands:

DefPrimitiveI('\larger',  undef, '', font => { scale => 1.2 });
DefPrimitiveI('\smaller', undef, '', font => { size  => 1 / 1.2 });

# \@xsetfontize
DefPrimitiveI('\TINY', undef, '', font => { size => 3 });
DefPrimitiveI('\Tiny', undef, '', font => { size => 4 });
Let('\SMALL', '\scriptsize');
Let('\Small', '\footnotesize');
DefPrimitiveI('\HUGE', undef, '', font => { size => 29.8 });
Let('\upn', '\textup');

# #======================================================================
# # Sec. 3. The Preamble
# # Included packages
# amsmath, amsthm,
# amsfonts (unless noamsfonts)

RequirePackage('amsmath');
RequirePackage('amstex') if LookupValue('2.09_COMPATIBILITY');
RequirePackage('amsthm');
RequirePackage('amsfonts');
RequirePackage('makeidx');

# # Useful packages:
# amssymb,
# amsmidx for multiple-indexes,
# graphicx,
# longtable,
# upref makes references upcase?, upright?
# xypic,

# #======================================================================
# # Sec. 4. Top Matter
# # FrontMatter:
DefMacro('\shorttitle{}',   '\@add@frontmatter{ltx:toctitle}{#1}');
DefMacro('\shortauthor{}',  Tokens());                                # Not useful?
DefMacro('\authors{}',      Tokens());
DefMacro('\shortauthors{}', Tokens());
DefMacro('\addresses{}',    Tokens());
DefMacro('\publname{}',     Tokens());
DefMacro('\publname{}',     Tokens());

DefMacro('\title[]{}',
  '\if.#1.\else\def\shorttitle{#1}\@add@frontmatter{ltx:toctitle}{#1}\fi'
    . '\@add@frontmatter{ltx:title}{#2}');

DefMacro('\lx@author@sep',  ',\ ');
DefMacro('\lx@author@conj', '\ and\ ');                               # \@@and

DefMacro('\author[]{}',
  '\if.#1.\else\def\shortauthor{#1}\fi'
    . '\def\@author{#2}\lx@author{#2}');

DefMacroI('\datename', undef, '\textit{Date}:');

DefMacro('\contrib[]{}',
  '\@add@frontmatter{ltx:creator}[role=contributor]{\@personname{#2}}');

DefMacro('\commby{}',
  '\@add@frontmatter{ltx:creator}[role=communicator]{\@personname{#1}}');

DefConstructor('\@@@address{}', "^ <ltx:contact role='address'>#1</ltx:contact>");
DefMacro('\address[]{}', '\@add@to@frontmatter{ltx:creator}{\@@@address{#2}}');

DefConstructor('\@@@curraddr{}', "^ <ltx:contact role='current_address'>#1</ltx:contact>");
DefMacro('\curraddr{}', '\@add@to@frontmatter{ltx:creator}{\@@@curraddr{#1}}');

DefConstructor('\@@@email{}', "^ <ltx:contact role='email'>#1</ltx:contact>");
DefMacro('\email{}', '\@add@to@frontmatter{ltx:creator}{\@@@email{#1}}');

DefConstructor('\@@@urladdr{}', "^ <ltx:contact role='url'>#1</ltx:contact>");
DefMacro('\urladdr{}', '\@add@to@frontmatter{ltx:creator}{\@@@urladdr{#1}}');

DefConstructor('\@@@dedicatory{}', "^ <ltx:contact role='dedicatory'>#1</ltx:contact>");
DefMacro('\dedicatory{}', '\@add@to@frontmatter{ltx:creator}{\@@@dedicatory{#1}}');

# \date{}
DefMacro('\dateposted{}', '\@add@frontmatter{ltx:date}[role=posted]{#1}');

# \thanks{} ( == ack, not latex's \thanks, not in author)
DefMacro('\thanks{}',
  '\@add@frontmatter{ltx:acknowledgements}[name={\@ifundefined{thanksname}{}{\thanksname}}]{#1}');

DefMacro('\translator[]{}',
  '\@add@frontmatter{ltx:creator}[role=translator]{\@personname{#2}}');

DefMacroI('\keywordsname', undef, 'Key words and phrases');
DefMacro('\keywords{}',
  '\@add@frontmatter{ltx:keywords}[name={\keywordsname}]{#1}');

# Non-standard but makes it easier to create bindings for variations on AMS classes;
# just redefine this macro
DefMacroI('\@subjclassyear', undef, '1991');

DefMacroI('\subjclassname', undef, '\textup{\@subjclassyear} Mathematics Subject Classification');
DefMacro('\subjclass[Default:\@subjclassyear]{}',
  '\ifx.#1.\else\xdef\@subjclassyear{#1}\fi'
    . '\@add@frontmatter{ltx:classification}[scheme={#1 Mathematics Subject Classification},'
    . 'name={\subjclassname}]{#2}');

DefMacro('\copyrightinfo{}{}',
  '\@add@frontmatter{ltx:note}[role=copyright]{\copyright #1: #2}');

DefMacro('\pagespan{}{}', '');    # ?
DefMacro('\PII{}',
  '\@add@frontmatter{ltx:classification}[scheme=PII]{#1}');
DefMacro('\ISSN{}',
  '\@add@frontmatter{ltx:classification}[scheme=ISSN]{#1}');

DefMacroI('\currentvolume', undef, Tokens());
DefMacroI('\currentissue',  undef, Tokens());
DefMacroI('\currentmonth',  undef, Tokens());
DefMacroI('\currentyear',   undef, Tokens());
DefMacroI('\volinfo',       undef, Tokens());
DefMacro('\issueinfo{}{}{}{}',
  '\def\currentvolume{#1}\def\currentissue{#2}\def\currentmonth{#3}\def\currentyear{#4}'
    . '\def\volinfo{Volume \currentvolume, Number \number0\currentissue, \currentmonth\ \currentyear}'
    . '\@add@frontmatter{ltx:note}[role=volume-info]{\volinfo}');

# abstract otherwise defined in LaTeX.pool
DefMacroI('\abstractname', undef, '\textsc{Abstract}');

# #======================================================================
# # Sec. 5. Document Body

# Mostly normal LaTeX

# For multiple indexes:
# \usepackage{amsmidex}
# \makeindex{name of index file}
# \makeindex{name of index file}

# \index{name of index}{index term}   ...
# \Printindex{name of index}{title of index} ...

DefMacro('\format@title@abstract{}',      '#1. ');
DefMacro('\format@title@section{}',       '\lx@tag[][.\space]{\thesection}#1');
DefMacro('\format@title@subsection{}',    '\lx@tag[][.\space]{\thesubsection}#1');
DefMacro('\format@title@subsubsection{}', '\lx@tag[][.\space]{\thesubsubsection}#1');

DefMacro('\format@title@description{}', '\lx@tag[][:\space]{#1}');
DefMacro('\descriptionlabel{}',         '\normalfont\bfseries #1:\space');

#======================================================================
# Sec 6. Floating objects: Figures and tables
# Normal LaTeX

# For compatibility
if (LookupValue('2.09_COMPATIBILITY')) {
  DefMacroI('\defaultfont', undef, '\normalfont');
  DefMacroI('\rom',         undef, '\textup');
  #  RawTeX('\newenvironment{pf}{\begin{@proof}[\proofname]}{\end{@proof}}');
  RawTeX('\newenvironment{pf}{\begin{@proof}}{\end{@proof}}');
  RawTeX('\newenvironment{pf*}[1]{\begin{@proof}[#1]}{\end{@proof}}');
}

DefMacro('\format@title@figure{}', '\lx@tag[][. ]{\lx@fnum@@{figure}}#1');
DefMacro('\format@title@table{}',  '\lx@tag[][. ]{\lx@fnum@@{table}}#1');

# Excersise environments ??:
# xca "must be defined with \theoremstyle{definition} and \newtheorem ???
# xcb only for monographs, at end of chapter

# #======================================================================
# # Sec 7. Bibliographic References
# \bibliographicstyle{}  amsplain or amsalpha
# \bibliography{bibfile}
# Normal LaTeX

DefConstructor('\bysame', ' by same author');
DefMacroI('\bibsetup', undef, Tokens());

# #======================================================================
# # Sec 8 Monograph Formatting:
# \documentclass{..}
# preamble
# \begin{document}
# \frontmatter
# frontmatter stuff
# \maketitle
# \include various preface, introduction, etc
# \mainmatter
# \include various chapters, appendices
# \backmatter
# commands for bibliography, indices
# \end{document}

# TOC's should be built by latexml... ?
DefMacro('\tocpart{}{}{}',          Tokens());
DefMacro('\tocchapter{}{}{}',       Tokens());
DefMacro('\tocsection{}{}{}',       Tokens());
DefMacro('\tocsubsection{}{}{}',    Tokens());
DefMacro('\tocsubsubsection{}{}{}', Tokens());
DefMacro('\tocparagraph{}{}{}',     Tokens());
DefMacro('\tocsubparagraph{}{}{}',  Tokens());
DefMacro('\tocappendix{}{}{}',      Tokens());
DefMacroI('\contentsnamefont', undef, '\scshape');

DefMacroI('\labelenumi',   undef, '(\theenumi)');
DefMacroI('\labelenumii',  undef, '(\theenumii)');
DefMacroI('\labelenumiii', undef, '(\theenumiii)');
DefMacroI('\labelenumiv',  undef, '(\theenumiv)');

DefRegister('\normaltopskip'    => Glue('10pt'));
DefRegister('\linespacing'      => Dimension('1pt'));
DefRegister('\normalparindent'  => Dimension('12pt'));
DefRegister('\abovecaptionskip' => Glue('12pt'));
DefRegister('\belowcaptionskip' => Glue('12pt'));
DefRegister('\captionindent'    => Glue('3pc'));
DefPrimitiveI('\nonbreakingspace', undef, UTF(0xA0));
DefMacroI('\fullwidthdisplay', undef, Tokens());
DefRegister('\listisep' => Glue(0));

DefMacroI('\calclayout',  undef, Tokens());
DefMacroI('\indentlabel', undef, Tokens());
# #======================================================================
DefMacroI('\@True',  undef, '00');
DefMacroI('\@False', undef, '01');
DefMacro('\newswitch[]{}', sub {
    my ($gullet, $value, $switch) = @_;
    Let("\\?\@" . ToString($switch), "\\\@" . ToString($value || 'False')); });
DefMacro('\setFalse{}', sub { Let("\\?\@" . ToString($_[1]), "\\\@False"); });
DefMacro('\setTrue{}',  sub { Let("\\?\@" . ToString($_[1]), "\\\@True"); });

# funny control structures, using above switches
# \except
# \for
# \forany

DefMacroI('\Mc', undef, 'Mc');

# Generated comma and "and" separated lists...
# \andify, \xandlist, \nxandlist

# #======================================================================

DefMacro('\URLhref{}', '');
DefMacroI('\URL', undef, sub {
    my ($gullet) = @_;
    my ($init, $body);
    { local $STATE = LaTeXML::Core::State->new(catcodes => 'none');
      $init = $gullet->readToken;
      $init = $gullet->readToken if ToString($init) eq '*';    # Should I bother handling \verb* ?
      $body = $gullet->readUntil($init); }
    Invocation(T_CS('\@ams@url'), Tokens($init), $body)->unlist; });

DefConstructor('\@ams@url {}',
  "<ltx:ref href='#href'>#1</ltx:ref>",
  properties => sub { (href => CleanURL(ToString($_[1]))); });

DefMacro('\MR{}',     'MR #1');
DefMacro('\MRhref{}', '');
# \newcommand\MR[1]{\relax\ifhmode\unskip\spacefactor3000 \space\fi
#   \def\@tempa##1:##2:##3\@nil{%
#     \ifx @##2\@empty##1\else\textbf{##1:}##2\fi}%
#   \MRhref{#1}{MR \@tempa#1:@:\@nil}}
# \let\MRhref\@gobble

# #======================================================================
1;
