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+% \iffalse meta-comment
+%
+% Copyright (C) 2014 by Leo Liu <leoliu.pku@gmail.com>
+% ---------------------------------------------------------------------------
+% This work may be distributed and/or modified under the
+% conditions of the LaTeX Project Public License, either version 1.3
+% of this license or (at your option) any later version.
+% The latest version of this license is in
+%   http://www.latex-project.org/lppl.txt
+% and version 1.3 or later is part of all distributions of LaTeX
+% version 2005/12/01 or later.
+%
+% This work has the LPPL maintenance status `maintained'.
+%
+% The Current Maintainer of this work is Leo Liu.
+%
+% This work consists of the files seealso.dtx and seealso.ins
+% and the derived filebase seealso.sty.
+%
+% \fi
+%
+% \iffalse
+%<*driver>
+\ProvidesFile{seealso.dtx}
+%</driver>
+%<package>\NeedsTeXFormat{LaTeX2e}[1999/12/01]
+%<package>\ProvidesPackage{seealso}
+%<*package>
+    [2014/04/06 v1.0 makeidx's see and seealso with page number support.]
+%</package>
+%
+%<*driver>
+\documentclass{ltxdoc}
+\usepackage[a4paper,left=2in,right=1in,top=1in,bottom=1in]{geometry}
+\newcommand\pkg[1]{\textsf{#1}}
+\usepackage[UTF8,hyperref]{ctex}
+\makeatletter
+\renewcommand\glossary@prologue{%
+  \section*{版本历史}
+  \markboth{版本历史}{版本历史}}
+\renewcommand\index@prologue{%
+  \section*{Index / 代码索引}
+  \markboth{Index / 代码索引}{Index / 代码索引}
+  斜体的数字表示对应项说明所在的页码。下划线的数字表示定义所在的代码行号；而直
+  立体的数字表示对应项使用时所在的行号。}
+\def\option{\begingroup
+   \catcode`\\12
+   \MakePrivateLetters \option@}
+\let\endoption\endtrivlist
+\long\def\option@#1{\endgroup \topsep\MacroTopsep \trivlist
+  \edef\saved@macroname{\string#1}%
+  \def\makelabel##1{\llap{##1}}%
+  \if@inlabel
+    \let\@tempa\@empty \count@\macro@cnt
+    \loop \ifnum\count@>\z@
+      \edef\@tempa{\@tempa\hbox{\strut}}\advance\count@\m@ne \repeat
+    \edef\makelabel##1{\llap{\vtop to\baselineskip
+                               {\@tempa\hbox{##1}\vss}}}%
+    \advance \macro@cnt \@ne
+  \else  \macro@cnt\@ne  \fi
+  \edef\@tempa{\noexpand\item[%
+     \noexpand\PrintEnvName
+     {\string#1}]}%
+  \@tempa
+  \global\advance\c@CodelineNo\@ne
+      \SpecialMainOptionIndex{#1}\nobreak
+  \global\advance\c@CodelineNo\m@ne
+  \ignorespaces}
+\def\SpecialMainOptionIndex#1{\@bsphack
+  \special@index{%
+    #1\actualchar
+    {\string\ttfamily\space#1}
+    (option)%
+    \encapchar main}%
+  \@esphack}
+\def\SpecialOptionIndex#1{\@bsphack
+    \index{#1\actualchar{\protect\ttfamily#1}
+           (option)\encapchar usage}%
+    \index{options:\levelchar#1\actualchar{\protect\ttfamily#1}\encapchar
+           usage}\@esphack}
+\def\DescribeOption{\leavevmode\@bsphack\begingroup\MakePrivateLetters
+  \Describe@Option}
+\def\Describe@Option#1{\endgroup
+              \marginpar{\raggedleft\PrintDescribeEnv{#1}}%
+              \SpecialOptionIndex{#1}\@esphack\ignorespaces}
+\def\stylemeaning#1{\texttt{%
+  \expandafter\expandafter\expandafter\strip@prefix
+    \expandafter\meaning\csname seealso@#1\endcsname}}
+\renewcommand\author[2][]{%
+  \ifstrempty{#1}{}{%
+    \hypersetup{pdfauthor=#1}}%
+  \def\@author{#2}}
+\renewcommand\title[2][]{%
+  \ifstrempty{#1}{}{%
+    \hypersetup{pdftitle=#1}}%
+  \def\@title{#2}}
+\makeatother
+\usepackage{seealso}
+\usepackage{fancyvrb}
+\fvset{gobble=2}
+\usepackage{hypdoc}
+\hypersetup{pdfstartview=FitH}
+\AtBeginDocument{\MakeShortVerb\|}
+\EnableCrossrefs
+\CodelineIndex
+\RecordChanges
+\begin{document}
+  \DocInput{seealso.dtx}
+  \PrintChanges
+  \PrintIndex
+\end{document}
+%</driver>
+% \fi
+%
+% \CheckSum{163}
+%
+% \CharacterTable
+%  {Upper-case    \A\B\C\D\E\F\G\H\I\J\K\L\M\N\O\P\Q\R\S\T\U\V\W\X\Y\Z
+%   Lower-case    \a\b\c\d\e\f\g\h\i\j\k\l\m\n\o\p\q\r\s\t\u\v\w\x\y\z
+%   Digits        \0\1\2\3\4\5\6\7\8\9
+%   Exclamation   \!     Double quote  \"     Hash (number) \#
+%   Dollar        \$     Percent       \%     Ampersand     \&
+%   Acute accent  \'     Left paren    \(     Right paren   \)
+%   Asterisk      \*     Plus          \+     Comma         \,
+%   Minus         \-     Point         \.     Solidus       \/
+%   Colon         \:     Semicolon     \;     Less than     \<
+%   Equals        \=     Greater than  \>     Question mark \?
+%   Commercial at \@     Left bracket  \[     Backslash     \\
+%   Right bracket \]     Circumflex    \^     Underscore    \_
+%   Grave accent  \`     Left brace    \{     Vertical bar  \|
+%   Right brace   \}     Tilde         \~}
+%
+%
+% \changes{v0.1}{2014/04/04}{初始版本。}
+% \changes{v1.0}{2014/04/05}{功能较完备的版本。}
+%
+% \DoNotIndex{\newcommand,\newenvironment,\^,\~,\@ifnextchar,\@onlypreamble,
+% \active, \AtBeginDocument,\begingroup,\catcode, \csdef,\cslet,\cslet,\csuse,
+% \DeclareBoolOption,\def,\define@key,\do, \docsvlist, \dolistloop,\else,
+% \emph,\empty,\endgroup,\fi,\forcsvlist, \forlistcsloop, \forlistloop,
+% \ifcsdef,\ifcsempty, \ifinlistcs,\ifstrempty,\ignorespaces,\lccode,\let,
+% \listadd, \listcsgadd,\lowercase,\newif, \ProcessKeyvalOptions,
+% \RequirePackage, \setkeys,\SetupKeyvalOptions,\space,\unless}
+%
+% \GetFileInfo{seealso.dtx}
+% \title[The seealso Package (\fileversion)]
+%   {\hypertarget{English}{The \pkg{seealso} Package (\fileversion)}
+%    \makebox[0pt][l]{\hspace{3cm}\large
+%      \hyperlink{Chinese}{$\Rightarrow$ \textsf{中文版}}}}
+% \author[Liú Hǎiyáng (Leo Liu) <leoliu.pku@gmail.com>]
+%   {Liú Hǎiyáng (Leo Liu) \\ \nolinkurl{leoliu.pku@gmail.com}}
+% \date{\filedate}
+%
+% \maketitle
+%
+% \section{Introduction}
+%
+% When preparing index, the macros |\see| and |\seealso| define by \LaTeXe's
+% standard package \pkg{makeidx} are handy to use. They are used as special
+% page format command, to present cross reference of index entry. For example,
+% if we use
+% \begin{Verbatim}
+% \index{math|see{mathematics}}
+% \end{Verbatim}
+% to reference the index entry ``mathematics'', we will get
+% \begin{quote}
+% math, \emph{see} mathematics
+% \end{quote}
+% in the output index.
+%
+% However, |\see| and |\seealso| commands in \LaTeXe{} cannot produce page
+% numbers. Moreover, if we use multiple |\see| or |\seealso|'s for one entry,
+% there will be multiple reference targets produced. Therefore we may get
+% this unexpected output:
+% \begin{quote}
+% math, \emph{see} mathematics, \emph{see} mathematics, \emph{see} mathematics
+% \end{quote}
+% if we have used \verb=\index{math|see{mathematics}}= at 3 different places
+% in the document.
+%
+% The \pkg{seealso} package solve the problem. If we use
+% \begin{Verbatim}
+% \usepackage{seealso}
+% \end{Verbatim}
+% all cross references of index entry will produce page numbers, and the
+% reference targets, which we call \emph{see list}, will be merged. The
+% previous example will produce an output like this:
+% \begin{quote}
+% math, \seepage{mathematics}{2}, \seepage{mathematics}{4}, \seepage{mathematics}{5}
+% \end{quote}
+%
+% \section{Reference}
+%
+% \subsection{Package Loading}
+%
+% The basic usage of the package is to simply load the package
+% \begin{Verbatim}
+% \usepackage{seealso}
+% \end{Verbatim}
+% then |\see| and |\seealso| commands will be redefined to support page number
+% output and reference target merging.
+%
+% The \pkg{seealso} package should be loaded after \pkg{makeidx},
+% \pkg{imakeidx}, etc. Or the redefinition of |\see| and |\seealso| may be
+% broken.
+%
+% \subsection{Package Options}
+%
+% \DescribeOption{override}
+% |override| is a boolean option, with a default value |true|. When it is set
+% the original |\see| and |\seealso| will be overridden. However, when it is
+% set to be |false|, say
+% \begin{Verbatim}
+% \usepackage[override=false]{seealso}
+% \end{Verbatim}
+% then |\see| and |\seealso| will not be overridden, and |\seepage| and
+% |\seealsopage| should be used for page number output.
+%
+% \DescribeOption{activecr}
+% |activecr| is a boolean option, with a default value |true|. When it is set,
+% the see list will be output at the end of an index entry line (in a |.ind|
+% file). If we set |activecr=false|, however, the see list will not be output
+% automatically, one should use |\SeealsoPrintList| manually at the end of the
+% index entry instead. Usually |\SeealsoPrintList| is added via |delim_t|
+% style of Makeindex.
+%
+% \subsection{The \cs{see} and \cs{seealso} Commands}
+%
+% \DescribeMacro{\seepage}
+% \DescribeMacro{\seealsopage}
+% |\seepage| and |\seealsopage| provide the main functions of this package.
+% They provide the same faculty of cross reference, but output page numbers
+% and prevent redundancy. For example, suppose that there are
+% \begin{Verbatim}
+% \index{foo|seepage{bar}}
+% \end{Verbatim}
+% in page 1, 2, and 3, we will have a |.ind| file as below:
+% \begin{Verbatim}
+% foo, \seepage{bar}{1}, \seepage{bar}{2}, \seepage{bar}{3}
+% \end{Verbatim}
+% And the output of the index will be:
+% \begin{quote}
+% foo, \seepage{bar}{1}, \seepage{bar}{2}, \seepage{bar}{3}
+% \end{quote}
+% 
+% It is possible to use different references for one index entry. For example
+% we can use
+% \begin{Verbatim}
+% \index{foo|seepage{bar}}
+% \end{Verbatim}
+% and
+% \begin{Verbatim}
+% \index{foo|seepage{foobaz}}
+% \end{Verbatim}
+% several times, the generated |.ind| file may be:
+% \begin{Verbatim}
+% foo, \seepage{bar}{1}, \seepage{bar}{2}, \seepage{foobaz}{3}
+% \end{Verbatim}
+% And the output of the index will be:
+% \begin{quote}
+% foo, \seepage{bar}{1}, \seepage{bar}{2}, \seepage{foobaz}{3}
+% \end{quote}
+%
+% \DescribeMacro{\seenopage}
+% \DescribeMacro{\seealsonopage}
+% The macros |\seenopage| and |\seealsonopage| save the original definitions
+% of |\see| and |\seealso| before loading \pkg{seealso}, which do not produce
+% page numbers.
+%
+% \DescribeMacro{\see}
+% \DescribeMacro{\seealso}
+% When option |override| is |true|, which is the default, |\see| and
+% |\seealso| works just as |\seepage| and |\seealsopage|.
+% 
+% \DescribeMacro{\SeealsoPrintList}
+% |\seepage| and |\seealsopage| will collect the see lists, which will be
+% output at the end of the line under default |activecr| option. However, when
+% |activecr| is set to be |false|, the see lists won't be output at the end of
+% source line where |\seepage| and |\seealsopage| are. In the latter case, we
+% can add |\SeealsoPrintList| manually at the end of line to output the see
+% lists. Usually we can set |delim_t| variable in the style file of Makeindex,
+% for example:
+% \begin{Verbatim}
+% % example.ist
+% delim_t "\\SeealsoPrintList"
+% \end{Verbatim}
+% Then a |\SeealsoPrintList| will be appended at the end of every non-empty
+% index entry, and the see lists will be output properly.
+%
+% \DescribeMacro{\DeclareSeealsoMacro}
+% |\DeclareSeealsoMacro| can be used to define a new macro like |\see| and
+% |\seealso|. The syntax is
+% \begin{quote}
+% |\DeclareSeealsoMacro\|\meta{macro}|{|\meta{seelist}|}{|\meta{name}|}|
+% \end{quote}
+% where |\|\meta{macro} is the macro name, \meta{seelist} is the new see list,
+% and \meta{name} is the name of the see list to be output (like |\seename|).
+% Using |\DeclareSeealsoMacro|, two macros will be defined, the one is
+% |\|\meta{macro}, the other is |\|\meta{macro}|name|. If there has no
+% |\|\meta{macro}|name| predefined, it is defined to be \meta{name}, or the
+% definition remains unchanged.
+%
+% For example, |\seepage| and |\seealsopage| are defined like this:
+% \begin{Verbatim}
+% \DeclareSeealsoMacro\seepage{see}{see}
+% \DeclareSeealsoMacro\seealsopage{also}{see also}
+% \end{Verbatim}
+% The definitions above also provide the default value of |\seename| and
+% |\alsoname| to be |see| and |see also|, respectively.
+%
+% \subsection{Output Styles}
+%
+% \DescribeMacro{\seealsosetup}
+% The macro |\seealsosetup| is used to configure the output style of see
+% lists. The syntax is:
+% \begin{quote}
+% |\seealsosetup[|\meta{seelists}|]{|\meta{kv-options}|}|
+% \end{quote}
+% where \meta{seelists} is a comma separated list, each item of which is a see
+% list to be setup. \meta{seelists} can also be omitted or set to be empty,
+% which means we are setting up the default output style of all kind of see
+% lists. \meta{kv-options} is the options in key-value syntax.
+%
+% All possible output styles are summarized in table~\ref{tab:outstyleen}.
+% \begin{table}[htbp]
+% \centering
+% \begin{tabular}{lp{4cm}ll}
+% \hline
+% Key & Meaning & Argument & Default Value \\
+% \hline
+% |name| & The name of see list to be output, e.g. |\seename| & none
+%   & (invalid) \\
+% |listsep| & The separator before a see list & none
+%   & \stylemeaning{listsep} \\
+% |itemsep| & The separator between see list items & none
+%   & \stylemeaning{itemsep} \\
+% |nameformat| & Output format of the see list name & |#1|
+%   & \stylemeaning{nameformat} \\
+% |itemformat| & Output format of the see list items & |#1|
+%   & \stylemeaning{itemformat} \\
+% |pageformat| & Output format of the page numbers & |#1|
+%   & \stylemeaning{pageformat} \\
+% \hline
+% \end{tabular}
+% \caption{Output styles used by \cs{seealsosetup}}\label{tab:outstyleen}
+% \end{table}
+%
+% For example, if we want to set all page numbers produced by |\seealsopage|
+% to be italic, we can use:
+% \begin{Verbatim}
+% \seealsosetup[also]{pageformat=\textit{#1}}
+% \end{Verbatim}
+%
+% \DescribeMacro{\SeealsoGobble}
+% |\SeealsoGobble| takes a character \meta{c} as argument. It checks the
+% following character, gobble it and ignore spaces if it is \meta{c}, or do
+% nothing if it is not \meta{c}. This macro is useful in |pageformat| style
+% to prevent outputting the page numbers, like this:
+% \begin{Verbatim}
+% \seealsosetup[see,also]{pageformat=\SeealsoGobble{,}, listsep=}
+% \end{Verbatim}
+% However, |\see| and |\seealso| will be encapsulated by |\hyperindexformat|
+% is we use \pkg{hyperref}, then |\SeealsoGobble| will be invalid.
+%
+% \section{Known Issues}
+%
+% Here are some known problems and their solutions:
+% \begin{itemize}
+% \item
+% Makeindex wraps the output lines with respect to |line_max| variable.  The
+% default value of |line_max| is only 72, therefore the entry line containing
+% |\see| and |\seealso| may be wrapped. However, |activecr| is |true| by
+% default, then package \pkg{seealso} will print the see lists at each end of
+% lines, and in the wrapped lines the see lists are output multiple times,
+% which is unexpected.
+%
+% To solve the problem, it is better to set larger |line_max| in the |.ist|
+% style file to prevent wrapping. Another approach is to set |activecr=false|
+% option, and set |delim_t| to be |\SeealsoPrintList| explicitly to output the
+% see lists.
+%
+% \item
+% Since the output format of page numbers of |\seepage|, |\seealsopage| is the
+% same as normal page numbers, it may be ambiguous if we use normal |\index|
+% and \verb=\index{...|seepage}= simultaneously. Usually we should avoid using
+% different style of |\index| with or without |\seepage| and |\seealsopage|.
+% If it is impossible, we can set special page number format to identify them,
+% or we can use |\SeealsoGobble| to disable page numbers.
+%
+% \item
+% When \pkg{hyperref} package is used, the function of avoiding page numbers
+% via |\SeealsoGobble| is invalid. That is because that |\see| and |\seealso|
+% will be encapsulated by |\hyperindexformat| in the |.ind| file. To solve the
+% problem, we can set |hyperindex=false| option of \pkg{hyperref} to disable
+% hyperlinks in the index, or some special patching of \pkg{hyperref} can be
+% considered.
+% \end{itemize}
+%
+%
+% \clearpage
+% \title{\hypertarget{Chinese}{\pkg{seealso} 宏包 (\fileversion)}
+%   \makebox[0pt][l]{\hspace{3cm}\large
+%     \hyperlink{English}{$\Rightarrow$ \textsf{English Version}}}}
+% \author{刘海洋 \\ \nolinkurl{leoliu.pku@gmail.com}}
+% \date{\filedate}
+%
+% \maketitle
+%
+% \section{简介}
+%
+% 在索引生成时，\LaTeXe{} 的标准宏包 \pkg{makeidx} 定义了 |\see| 与 |\seealso|
+% 两个宏，它们通常是在 |\index| 中作为一种特殊的页码格式使用，表示索引项的引
+% 用。例如使用
+% \begin{Verbatim}
+% \index{math|see{mathematics}}
+% \end{Verbatim}
+% 会使索引项 math 引用到 mathematics。生成类似
+% \begin{quote}
+% math, \emph{see} mathematics
+% \end{quote}
+% 的索引条目。
+%
+% 不过，\LaTeXe{} 的 |\see| 与 |\seealso| 命令并不会为交叉引用的索引项输出页
+% 码。更严重的问题是，如果对一个索引项使用了多次交叉引用，则会多次输出相同的目
+% 标引用。因此可能出现这样的尴尬效果：
+% \begin{quote}
+% math, \emph{see} mathematics, \emph{see} mathematics, \emph{see} mathematics
+% \end{quote}
+% 其中可能在三个不同的地方使用了 \verb=\index{math|see{mathematics}}=。
+%
+% \pkg{seealso} 宏包即为解决这种问题而编写。只要使用了
+% \begin{Verbatim}
+% \usepackage{seealso}
+% \end{Verbatim}
+% 则交叉引用的索引项会同时显示页码，同时多个交叉引用的目标（我们称为\emph{参见
+% 列表}）会合并显示。前面的例子就可能会输出：
+% \begin{quote}
+% math, \seepage{mathematics}{2}, \seepage{mathematics}{4}, \seepage{mathematics}{5}
+% \end{quote}
+% 这样的格式。
+%
+% \section{参考手册}
+%
+% \subsection{宏包载入}
+%
+% 基本的用法就是直接使用
+% \begin{Verbatim}
+% \usepackage{seealso}
+% \end{Verbatim}
+% 这样 |\see| 和 |\seealso| 命令就会被重定义为支持输出页码和合并目标的格式。
+%
+% 注意 \pkg{seealso} 宏包的载入应该晚于 \pkg{makeidx}、\pkg{imakeidx} 等定义
+% |\see|、|\seealso| 的宏包，否则其功能将会失效。
+%
+% \subsection{宏包选项}
+%
+% \DescribeOption{override}
+% |override| 是布尔型选项，默认为 |true|。表示覆盖已有的 |\see| 与 |\seealso|
+% 定义。如果设置
+% \begin{Verbatim}
+% \usepackage[override=false]{seealso}
+% \end{Verbatim}
+% 则不对 |\see| 与 |\seealso| 覆盖，要使用 |\seepage| 和
+% |\seealsopage| 命令调用相应的功能。
+%
+% \DescribeOption{activecr}
+% |activecr| 是布尔型选项，默认为 |true|。表示打开在（|.ind| 文件中）索引项行
+% 末自动输出所有参见列表的功能。如果设置 |activecr=false|，则必须手工（通常通
+% 过设置 Makeindex 的 |delim_t| 格式）在索引项末加上 |\SeealsoPrintList| 输出
+% 参见列表。
+%
+% \subsection{\cs{see} 与 \cs{seealso} 命令}
+%
+% \DescribeMacro{\seepage}
+% \DescribeMacro{\seealsopage}
+% |\seepage| 与 |\seealsopage| 提供了宏包的主要功能，它们与原始的
+% |\see|、|\seealso| 命令类似提供索引项的交叉引用功能，但同时会输出页码，并避
+% 免重复输出交叉引用。例如，在文档中第 1, 2, 3 页分别多次使用
+% \begin{Verbatim}
+% \index{foo|seepage{bar}}
+% \end{Verbatim}
+% 则在 |.ind| 文件中会生成：
+% \begin{Verbatim}
+% foo, \seepage{bar}{1}, \seepage{bar}{2}, \seepage{bar}{3}
+% \end{Verbatim}
+% 而输出的结果将会是：
+% \begin{quote}
+% foo, \seepage{bar}{1}, \seepage{bar}{2}, \seepage{bar}{3}
+% \end{quote}
+%
+% 同一个词可以有不同的参见引用项目，例如在不同的位置几次使用
+% \begin{Verbatim}
+% \index{foo|seepage{bar}}
+% \end{Verbatim}
+% 和
+% \begin{Verbatim}
+% \index{foo|seepage{foobaz}}
+% \end{Verbatim}
+% 则 |.ind| 文件中可能生成：
+% \begin{Verbatim}
+% foo, \seepage{bar}{1}, \seepage{bar}{2}, \seepage{foobaz}{3}
+% \end{Verbatim}
+% 于是将得到输出结果
+% \begin{quote}
+% foo, \seepage{bar}{1}, \seepage{bar}{2}, \seepage{foobaz}{3}
+% \end{quote}
+%
+% \DescribeMacro{\seenopage}
+% \DescribeMacro{\seealsonopage}
+% |\seenopage| 与 |\seealsonopage| 这两个宏则保存了在调用 \pkg{seealso} 宏包之
+% 前，|\see| 与 |\seealso| 的原始定义，它们不会输出页码。
+%
+% \DescribeMacro{\see}
+% \DescribeMacro{\seealso}
+% 在默认的 |override| 选项下，|\see| 与 |\seealso| 的功能与
+% |\seepage|、|\seealsopage| 相同。
+%
+% \DescribeMacro{\SeealsoPrintList}
+% |\seepage| 和 |\seealsopage| 会收集参见列表，在默认的 |activecr| 选项为
+% |ture| 时会在行末自动输出。但如果 |activecr| 选项设置为 |false|，则
+% |\seepage| 与 |\seealsopage| 所在行结束后不会自动输出参见列表。此时，可以手
+% 工在此行最后加上 |\SeealsoPrintList| 宏，输出参见列表。通常可以在 Makeindex
+% 的格式文件中，输出格式选项 |delim_t| 里面加上 |\SeealsoPrintList| 宏，如：
+% \begin{Verbatim}
+% % example.ist
+% delim_t "\\SeealsoPrintList"
+% \end{Verbatim}
+% 这样，每个非空索引项输出的最后都会加上 |\SeealsoPrintList|，按需要输出参见列
+% 表。
+%
+% \DescribeMacro{\DeclareSeealsoMacro}
+% |\DeclareSeealsoMacro| 命令用于生成新的类似 |\see| 与 |\seealso| 的宏。其语
+% 法为：
+% \begin{quote}
+% |\DeclareSeealsoMacro\|\meta{macro}|{|\meta{seelist}|}{|\meta{name}|}|
+% \end{quote}
+% 其中 |\|\meta{macro} 是新的宏名称，\meta{seelist} 是新的参见列表
+% 名，\meta{name} 是输出参见列表时的名称。使用该命令会生成两个宏，一个是
+% |\|\meta{macro}，一个是对应的名称 |\|\meta{macro}|name|。
+% |\|\meta{macro}|name| 如果事先没有定义，则定义其值为 \meta{name}，否则保持不
+% 变。
+%
+% 例如，|\seepage| 和 |\seealsopage| 就是这样定义的：
+% \begin{Verbatim}
+% \DeclareSeealsoMacro\seepage{see}{see}
+% \DeclareSeealsoMacro\seealsopage{also}{see also}
+% \end{Verbatim}
+% 上述命令同时定义了 |\seename| 的备选值为 |see|，以及 |\alsoname| 的备选值为
+% |see also|。
+%
+% \subsection{格式设置}
+%
+% \DescribeMacro{\seealsosetup}
+% |\seealsosetup| 命令用于设置参见列表的输出格式。其语法为：
+% \begin{quote}
+% |\seealsosetup[|\meta{seelists}|]{|\meta{kv-options}|}|
+% \end{quote}
+% 其中，可选参数 \meta{seelists} 是一个逗号分隔的列表，每一项表示要设置其格式
+% 的参见列表，如果不设置 \meta{seelists} 或设为空，则设置默认的输出格式。而选
+% 项 \meta{kv-options} 则是输出格式项。
+%
+% 可用的输出格式见表~\ref{tab:outstylezh}。
+% \begin{table}[htbp]
+% \centering
+% \begin{tabular}{llll}
+% \hline
+% 选项 & 意义 & 参数 & 默认值 \\
+% \hline
+% |name| & 输出参见列表的名称 & 无 & （不可用） \\
+% |listsep| & 参见列表前的分隔符 & 无 & \stylemeaning{listsep} \\
+% |itemsep| & 参见列表项间的分隔符 & 无 & \stylemeaning{itemsep} \\
+% |nameformat| & 输出参见名“see also”的格式 & |#1| & \stylemeaning{nameformat} \\
+% |itemformat| & 参见列表项的格式 & |#1| & \stylemeaning{itemformat} \\
+% |pageformat| & 页码格式 & |#1| & \stylemeaning{pageformat} \\
+% \hline
+% \end{tabular}
+% \def\tablename{表}
+% \caption{\cs{seealsosetup} 使用的输出格式}\label{tab:outstylezh}
+% \end{table}
+%
+% 例如，如果要让所有 |\seealsopage| 命令生成的页码以斜体显示，就可以使用
+% \begin{Verbatim}
+% \seealsosetup[also]{pageformat=\textit{#1}}
+% \end{Verbatim}
+%
+% \DescribeMacro{\SeealsoGobble}
+% |\SeealsoGobble| 宏接受一个字符作为参数，它检查后面是否有此字符，如果是则吞
+% 掉此字符及后面的空格，否则什么都不做。在 |pageformat| 选项中使用这个宏可以用
+% 来禁止显示参见项的页码，像下面这样：
+% \begin{Verbatim}
+% \seealsosetup[see,also]{pageformat=\SeealsoGobble{,}, listsep=}
+% \end{Verbatim}
+% 但注意使用 \pkg{hyperref} 时，|\see|、|\seealso| 等命令会被
+% |\hyperindexformat| 所包裹，使这种方法会失效。
+%
+% \section{已知问题}
+%
+% 以下是一些已知的问题和解决方案：
+% \begin{itemize}
+% \item
+% Makeindex 会按输出选项 |line_max| 对输出的内容进行折行，默认的 |line_max| 只
+% 有 72，所以当项目较多时，可能在 |\see| 或 |\seealso| 等命令所在的项目中产生
+% 折行。但由于默认情况下（|activecr| 选项打开）\pkg{seealso} 包遇到换行符就会
+% 输出参见列表，会造成错误。一种解决方法是将 |line_max| 设置得很大，避免折行；
+% 另一种解决方法是设置 |activecr=false|，同时在 Makeindex 的格式文件中显式设置
+% |delim_t| 为 |\SeealsoPrintList| 来输出参见列表。
+% 
+% \item
+% 由于 |\seepage|, |\seealsopage| 的页码显示形式与普通页码相同，所以可能会造成
+% 页码重叠的情况。最好尽量避免交叉引用的项目有多种形式的索引。如果不能避免，为
+% 解决此问题，可以设置特别的页码输出格式以示区分，或者借用 |\SeealsoGobble| 设
+% 置不输出页码。
+%
+% \item
+% 在使用 \pkg{hyperref} 功能时，用 |\SeealsoGobble| 禁止显示页码的功能会失效。
+% 这是因为 |\see|、|\seealso| 等命令会被 |\hyperindexformat| 包裹。为解决此问
+% 题，可以设置 \pkg{hyperref} 的选项 |hyperindex=false| 禁用索引的超链接，或者
+% 考虑对 \pkg{hyperref} 做特殊的补丁。
+% \end{itemize}
+%
+% \StopEventually{}
+% 
+% \clearpage
+% \section{Implementation / 代码实现}
+%
+% \iffalse
+%<*package>
+% \fi
+%
+% \subsection{准备工作}
+%
+% 引入相关编程工具。
+%    \begin{macrocode}
+\RequirePackage{etoolbox}
+\RequirePackage{kvoptions}
+\SetupKeyvalOptions{
+  family=seealso@opt,
+  prefix=seealso@}
+%    \end{macrocode}
+%
+% 声明宏包选项。
+%
+% \begin{option}{override}
+% \changes{v1.0}{2014/04/05}{新增选项。}
+% 重定义 |\see| 与 |\seealso| 为有页码的形式。默认打开。
+%    \begin{macrocode}
+\DeclareBoolOption[true]{override}
+%    \end{macrocode}
+% \end{option}
+%
+% \begin{option}{activecr}
+% \changes{v1.0}{2014/04/05}{新增选项。}
+% 使用换行符作为输出 |\see| 等命令的指令。默认打开。
+%    \begin{macrocode}
+\DeclareBoolOption[true]{activecr}
+%    \end{macrocode}
+% \end{option}
+%
+% 执行选项。
+%    \begin{macrocode}
+\ProcessKeyvalOptions*
+%    \end{macrocode}
+%
+% \begin{macro}{\seealso@charlet}
+% 参数 |#1| 是一个字符或 |\| 加字符的形式，|\seealso@charlet| 将此字符看做活动
+% 字符的宏，使用 |\let| 与后面的内容赋值，但本身不改变字符的 catcode。
+%    \begin{macrocode}
+\def\seealso@charlet#1{%
+  \begingroup\lccode`\~=`#1\lowercase{\endgroup\let~}}
+%    \end{macrocode}
+% \end{macro}
+%
+% \subsection{参见列表及其实现}
+%
+% \begin{macro}{\seealso@macrolist}
+% 列表记录所有独立的类似 |\seepage| 的宏。默认只有 |see| 和 |also| 两组，对应
+% 命令 |\seepage| 和 |\seealsopage|。
+%    \begin{macrocode}
+\let\seealso@macrolist\empty
+%    \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\seealso@clearlists}
+% 清空参见列表，如 |\seealso@see@list|、|\seealso@also@list|。
+%    \begin{macrocode}
+\def\seealso@clearlists{%
+  \def\do##1{\cslet{seealso@##1@list}\empty}%
+  \dolistloop\seealso@macrolist}
+\AtBeginDocument{\seealso@clearlists}
+%    \end{macrocode}
+% \end{macro}
+% 
+% \begin{macro}{\SeealsoPrintList}
+% 输出参见列表，如 |\seealso@see@list|、|\seealso@also@list|。
+%    \begin{macrocode}
+\newcommand\SeealsoPrintList{%
+  \forlistloop\seealso@printlist\seealso@macrolist
+  \seealso@clearlists}
+%    \end{macrocode}
+% \end{macro}
+% 
+% \begin{macro}{\ifseealso@firstitem}
+% 测试是否是在输出参见列表的第一项。
+%    \begin{macrocode}
+\newif\ifseealso@firstitem
+%    \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\seealso@printlist}
+% 输出参见列表 |#1|。如果列表为空则无操作。
+%    \begin{macrocode}
+\def\seealso@printlist#1{%
+  \ifcsempty{seealso@#1@list}
+    {}
+    {\csuse{seealso@#1@listsep}%
+     \csuse{seealso@#1@nameformat}{\csuse{#1name}}%
+     \seealso@firstitemtrue
+     \forlistcsloop{\seealso@listitem{#1}}{seealso@#1@list}}}
+%    \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\seealso@listitem}
+% 输出参见列表的一项。如果不是第一项，同时输出分隔符。
+%    \begin{macrocode}
+\def\seealso@listitem#1#2{%
+  \ifseealso@firstitem
+    \seealso@firstitemfalse
+  \else
+    \csuse{seealso@#1@itemsep}%
+  \fi
+  \csuse{seealso@#1@itemformat}{#2}}
+%    \end{macrocode}
+% \end{macro}
+% 
+% \begin{macro}{\DeclareSeealsoMacro}
+% \changes{v1.0}{2014/04/05}{新增以定义新的参见命令。}
+% 定义一个新的带页码的参见命令。|#1| 是命令名，|#2| 是该命令使用的参见列
+% 表，|#3| 是列表输出时使用的名字。
+%    \begin{macrocode}
+\newcommand\DeclareSeealsoMacro[3]{%
+%    \end{macrocode}
+% 首先定义参见命令 |#1| 本身。
+%    \begin{macrocode}
+  \newcommand#1[2]{%
+    \seealso@setactivecr
+    \ifinlistcs{##1}{seealso@#2@list}
+      {}
+      {\listcsgadd{seealso@#2@list}{##1}}%
+    \csuse{seealso@#2@pageformat}{##2}}%
+%    \end{macrocode}
+% 将参见命令加入列表。
+%    \begin{macrocode}
+  \listadd\seealso@macrolist{#2}%
+%    \end{macrocode}
+% 定义 |name| 选项，用来设置 |\|\meta{macro}|name|。如 |\seename| 和
+% |\alsoname|。
+%    \begin{macrocode}
+  \define@key{seealso@#2}{name}{%
+    \csdef{#2name}{##1}}%
+%    \end{macrocode}
+% 如果事先没有定义，则定义 |\|\meta{macro}|name| 为 |#3|。
+%    \begin{macrocode}
+  \ifcsdef{#2name}
+    {}
+    {\setkeys{seealso@#2}{name=#3}}%
+%    \end{macrocode}
+% 定义无参选项。
+%    \begin{macrocode}
+  \def\do##1{%
+    \define@key{seealso@#2}{##1}{%
+      \csdef{seealso@#2@##1}{####1}}%
+    \setkeys{seealso@#2}{##1=\csuse{seealso@##1}}}%
+  \docsvlist{listsep,itemsep}%
+%    \end{macrocode}
+% 定义有一个参数的选项。
+%    \begin{macrocode}
+  \def\do##1{%
+    \define@key{seealso@#2}{##1}{%
+      \csdef{seealso@#2@##1}########1{####1}}%
+      \setkeys{seealso@#2}{##1=\csuse{seealso@##1}{####1}}}%
+  \docsvlist{nameformat,itemformat,pageformat}}
+\@onlypreamble{\DeclareSeealsoMacro}
+%    \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\ifseealso@iscractive}
+% 判断当前换行符是否已经被激活。
+%    \begin{macrocode}
+\newif\ifseealso@iscractive
+%    \end{macrocode}
+% \end{macro}
+% 
+% \begin{macro}{\seealso@setactivecr}
+% |activecr| 选项为真时，设置换行符为 |\seealso@cr| 并激活。
+%    \begin{macrocode}
+\def\seealso@setactivecr{%
+  \ifseealso@activecr
+    \unless\ifseealso@iscractive
+      \catcode`\^^M=\active
+      \seealso@charlet\^^M\seealso@cr
+      \seealso@iscractivetrue
+    \fi
+  \fi}
+%    \end{macrocode}
+% \end{macro}
+% 
+% \begin{macro}{\seealso@cr}
+% 是在 |activecr| 选项下，换行符的定义。它取消激活换行符为宏，并输出参见列表。
+%    \begin{macrocode}
+\def\seealso@cr{%
+  \catcode`\^^M=5
+  \seealso@iscractivefalse
+  \SeealsoPrintList}
+%    \end{macrocode}
+% \end{macro}
+%
+% 下面定义参见列表的默认输出格式。以下宏给出的都是全局的默认值，可以单独修改每
+% 一项的输出格式。
+% \begin{macro}{\seealso@listsep}
+% 参见列表之前的分隔符。
+%    \begin{macrocode}
+\def\seealso@listsep{,\space}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\seealso@itemsep}
+% 参见列表项之间的分隔符。
+%    \begin{macrocode}
+\def\seealso@itemsep{,\space}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\seealso@nameformat}
+% 参见名“see also”的输出格式。
+%    \begin{macrocode}
+\def\seealso@nameformat#1{\emph{#1}\space}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\seealso@itemformat}
+% 参见列表项的输出格式。
+%    \begin{macrocode}
+\def\seealso@itemformat#1{#1}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\seealso@pageformat}
+% 参见页码的输出格式。
+%    \begin{macrocode}
+\def\seealso@pageformat#1{#1}
+%    \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\seealso@define@key}
+% \begin{macro}{\seealso@define@keyarg}
+% 定义 |seealso| 族的键，用于设置输出格式。
+%    \begin{macrocode}
+\def\seealso@define@key#1{%
+  \define@key{seealso}{#1}{%
+    \csdef{seealso@#1}{##1}}}
+\def\seealso@define@keyarg#1{%
+  \define@key{seealso}{#1}{%
+    \csdef{seealso@#1}####1{##1}}}
+%    \end{macrocode}
+% \end{macro}
+% \end{macro}
+% 为每个输出格式定义键。
+%    \begin{macrocode}
+\forcsvlist\seealso@define@key{listsep,itemsep}
+\forcsvlist\seealso@define@keyarg{nameformat,itemformat,pageformat}
+%    \end{macrocode}
+%
+% \begin{macro}{\SeealsoGobble}
+% \changes{v1.0}{2014/04/06}{支持吞掉分隔符的页码格式，即不显示页码。}
+% 检查后面的字符是否 |#1|，如果是则吞掉分隔符 |#1| 及后面的空格。这个宏可用于
+% 设置 |pageformat| 格式，吞掉一个类似 |,\space| 类型的分隔符。
+%    \begin{macrocode}
+\def\SeealsoGobble#1{\@ifnextchar#1{\seealso@gobbleignorespaces}{}}
+%    \end{macrocode}
+% \end{macro}
+% \begin{macro}{\seealso@gobbleignorespaces}
+% 吞掉参数并忽略后面的空格。
+%    \begin{macrocode}
+\def\seealso@gobbleignorespaces#1{\ignorespaces}
+%    \end{macrocode}
+% \end{macro}
+%
+% \subsection{定义用户接口}
+%
+% \begin{macro}{\seealsosetup}
+% \changes{v1.0}{2014/04/05}{新增格式设置。}
+% 设置输出格式。可选参数是一个逗号列表：如果可选参数为空，用 |#2| 设置默认的输
+% 出格式；否则对可选参数的每一项，设置参数 |#2| 的格式。使用 |\forcsvlist| 而
+% 没有使用 |\docsvlist| 是为了避免因嵌套定义造成使用时参数不得不使用双重
+% |##|。
+%    \begin{macrocode}
+\newcommand\seealsosetup[2][]{%
+  \ifstrempty{#1}{%
+    \setkeys{seealso}{#2}%
+  }{%
+    \def\do##1{\setkeys{seealso@##1}{#2}}%
+    \forcsvlist{\do}{#1}}}
+%    \end{macrocode}
+% \end{macro}
+%
+% \begin{macro}{\seenopage}
+% \begin{macro}{\seealsonopage}
+% 保存旧的 |\see| 与 |\seealso| 命令定义，使用 |override| 选项时可临时使用旧的
+% 定义。
+%    \begin{macrocode}
+\let\seenopage\see
+\let\seealsonopage\seealso
+%    \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\seepage}
+% \begin{macro}{\seealsopage}
+% 带页码输出的 |\seepage| 与 |\seealsopage|。使用 |override| 选项时可直接使用
+% |\see| 与 |\seealso| 代替 |\seepage| 与 |\seealsopage|。
+%
+% 如果之前没有定义，这里会同时定义 |\seename| 和 |\alsoname|，与 \pkg{makeidx}
+% 初始值一致。
+%    \begin{macrocode}
+\DeclareSeealsoMacro\seepage{see}{see}
+\DeclareSeealsoMacro\seealsopage{also}{see also}
+%    \end{macrocode}
+% \end{macro}
+% \end{macro}
+%
+% \begin{macro}{\see}
+% \begin{macro}{\seealso}
+% 使用 |override| 时，重定义 |\see| 与 |\seealso|。
+%    \begin{macrocode}
+\ifseealso@override
+  \def\see{\seepage}
+  \def\seealso{\seealsopage}
+\fi
+%    \end{macrocode}
+% \end{macro}
+% \end{macro}
+% 
+% \iffalse
+%</package>
+% \fi
+%
+% \Finale
+\endinput
diff --git a/Master/texmf-dist/source/latex/seealso/seealso.ins b/Master/texmf-dist/source/latex/seealso/seealso.ins
new file mode 100644
index 00000000000..f3492ed93a3
--- /dev/null
+++ b/Master/texmf-dist/source/latex/seealso/seealso.ins
@@ -0,0 +1,58 @@
+%% Copyright (C) 2014 by Leo Liu <leoliu.pku@gmail.com>
+%% --------------------------------------------------------------------------
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%   http://www.latex-project.org/lppl.txt
+%% and version 1.3 or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%%
+%% This work has the LPPL maintenance status `maintained'.
+%%
+%% The Current Maintainer of this work is Leo Liu.
+%%
+%% This work consists of the files seealso.dtx and seealso.ins
+%% and the derived filebase seealso.sty.
+%%
+
+\input docstrip.tex
+\keepsilent
+
+\usedir{tex/latex/seealso}
+
+\preamble
+
+This is a generated file.
+
+Copyright (C) 2014 by Leo Liu <leoliu.pku@gmail.com>
+--------------------------------------------------------------------------
+This work may be distributed and/or modified under the
+conditions of the LaTeX Project Public License, either version 1.3
+of this license or (at your option) any later version.
+The latest version of this license is in
+  http://www.latex-project.org/lppl.txt
+and version 1.3 or later is part of all distributions of LaTeX
+version 2005/12/01 or later.
+
+\endpreamble
+
+\askforoverwritefalse
+\generate{\file{seealso.sty}{\from{seealso.dtx}{package}}}
+
+\obeyspaces
+\Msg{*************************************************************}
+\Msg{*                                                           *}
+\Msg{* To finish the installation you have to move the following *}
+\Msg{* file into a directory searched by TeX:                    *}
+\Msg{*                                                           *}
+\Msg{*     seealso.sty                                           *}
+\Msg{*                                                           *}
+\Msg{* To produce the documentation run the file seealso.dtx     *}
+\Msg{* through LaTeX.                                            *}
+\Msg{*                                                           *}
+\Msg{* Happy TeXing!                                             *}
+\Msg{*                                                           *}
+\Msg{*************************************************************}
+
+\endbatchfile
diff --git a/Master/texmf-dist/tex/latex/seealso/seealso.sty b/Master/texmf-dist/tex/latex/seealso/seealso.sty
new file mode 100644
index 00000000000..ae67167b76f
--- /dev/null
+++ b/Master/texmf-dist/tex/latex/seealso/seealso.sty
@@ -0,0 +1,125 @@
+%%
+%% This is file `seealso.sty',
+%% generated with the docstrip utility.
+%%
+%% The original source files were:
+%%
+%% seealso.dtx  (with options: `package')
+%% 
+%% This is a generated file.
+%% 
+%% Copyright (C) 2014 by Leo Liu <leoliu.pku@gmail.com>
+%% --------------------------------------------------------------------------
+%% This work may be distributed and/or modified under the
+%% conditions of the LaTeX Project Public License, either version 1.3
+%% of this license or (at your option) any later version.
+%% The latest version of this license is in
+%%   http://www.latex-project.org/lppl.txt
+%% and version 1.3 or later is part of all distributions of LaTeX
+%% version 2005/12/01 or later.
+%% 
+\NeedsTeXFormat{LaTeX2e}[1999/12/01]
+\ProvidesPackage{seealso}
+    [2014/04/06 v1.0 makeidx's see and seealso with page number support.]
+\RequirePackage{etoolbox}
+\RequirePackage{kvoptions}
+\SetupKeyvalOptions{
+  family=seealso@opt,
+  prefix=seealso@}
+\DeclareBoolOption[true]{override}
+\DeclareBoolOption[true]{activecr}
+\ProcessKeyvalOptions*
+\def\seealso@charlet#1{%
+  \begingroup\lccode`\~=`#1\lowercase{\endgroup\let~}}
+\let\seealso@macrolist\empty
+\def\seealso@clearlists{%
+  \def\do##1{\cslet{seealso@##1@list}\empty}%
+  \dolistloop\seealso@macrolist}
+\AtBeginDocument{\seealso@clearlists}
+\newcommand\SeealsoPrintList{%
+  \forlistloop\seealso@printlist\seealso@macrolist
+  \seealso@clearlists}
+\newif\ifseealso@firstitem
+\def\seealso@printlist#1{%
+  \ifcsempty{seealso@#1@list}
+    {}
+    {\csuse{seealso@#1@listsep}%
+     \csuse{seealso@#1@nameformat}{\csuse{#1name}}%
+     \seealso@firstitemtrue
+     \forlistcsloop{\seealso@listitem{#1}}{seealso@#1@list}}}
+\def\seealso@listitem#1#2{%
+  \ifseealso@firstitem
+    \seealso@firstitemfalse
+  \else
+    \csuse{seealso@#1@itemsep}%
+  \fi
+  \csuse{seealso@#1@itemformat}{#2}}
+\newcommand\DeclareSeealsoMacro[3]{%
+  \newcommand#1[2]{%
+    \seealso@setactivecr
+    \ifinlistcs{##1}{seealso@#2@list}
+      {}
+      {\listcsgadd{seealso@#2@list}{##1}}%
+    \csuse{seealso@#2@pageformat}{##2}}%
+  \listadd\seealso@macrolist{#2}%
+  \define@key{seealso@#2}{name}{%
+    \csdef{#2name}{##1}}%
+  \ifcsdef{#2name}
+    {}
+    {\setkeys{seealso@#2}{name=#3}}%
+  \def\do##1{%
+    \define@key{seealso@#2}{##1}{%
+      \csdef{seealso@#2@##1}{####1}}%
+    \setkeys{seealso@#2}{##1=\csuse{seealso@##1}}}%
+  \docsvlist{listsep,itemsep}%
+  \def\do##1{%
+    \define@key{seealso@#2}{##1}{%
+      \csdef{seealso@#2@##1}########1{####1}}%
+      \setkeys{seealso@#2}{##1=\csuse{seealso@##1}{####1}}}%
+  \docsvlist{nameformat,itemformat,pageformat}}
+\@onlypreamble{\DeclareSeealsoMacro}
+\newif\ifseealso@iscractive
+\def\seealso@setactivecr{%
+  \ifseealso@activecr
+    \unless\ifseealso@iscractive
+      \catcode`\^^M=\active
+      \seealso@charlet\^^M\seealso@cr
+      \seealso@iscractivetrue
+    \fi
+  \fi}
+\def\seealso@cr{%
+  \catcode`\^^M=5
+  \seealso@iscractivefalse
+  \SeealsoPrintList}
+\def\seealso@listsep{,\space}
+\def\seealso@itemsep{,\space}
+\def\seealso@nameformat#1{\emph{#1}\space}
+\def\seealso@itemformat#1{#1}
+\def\seealso@pageformat#1{#1}
+\def\seealso@define@key#1{%
+  \define@key{seealso}{#1}{%
+    \csdef{seealso@#1}{##1}}}
+\def\seealso@define@keyarg#1{%
+  \define@key{seealso}{#1}{%
+    \csdef{seealso@#1}####1{##1}}}
+\forcsvlist\seealso@define@key{listsep,itemsep}
+\forcsvlist\seealso@define@keyarg{nameformat,itemformat,pageformat}
+\def\SeealsoGobble#1{\@ifnextchar#1{\seealso@gobbleignorespaces}{}}
+\def\seealso@gobbleignorespaces#1{\ignorespaces}
+\newcommand\seealsosetup[2][]{%
+  \ifstrempty{#1}{%
+    \setkeys{seealso}{#2}%
+  }{%
+    \def\do##1{\setkeys{seealso@##1}{#2}}%
+    \forcsvlist{\do}{#1}}}
+\let\seenopage\see
+\let\seealsonopage\seealso
+\DeclareSeealsoMacro\seepage{see}{see}
+\DeclareSeealsoMacro\seealsopage{also}{see also}
+\ifseealso@override
+  \def\see{\seepage}
+  \def\seealso{\seealsopage}
+\fi
+\endinput
+%%
+%% End of file `seealso.sty'.