### Dynamic CJK Font Setup with zhmCJK

Source: https://context7.com/leo-liu/tex-pkg/llms.txt

Configures CJK fonts for pdfTeX and DVIPDFMx using xeCJK-like syntax. This example sets main, sans-serif, and monospace CJK fonts, including bold and italic variants.

```latex
% UTF-8 encoding required
% Compile with: pdflatex or latex + dvipdfmx
\documentclass[12pt,a4paper]{article}
\usepackage{zhmCJK}

% Set main CJK font with bold and italic variants
\setCJKmainfont{simsun.ttc}[
  BoldFont=simhei.ttf,
  ItalicFont=simkai.ttf
]

% Set sans-serif CJK font (disable auto bold)
\setCJKsansfont{simhei.ttf}[AutoFakeBold=0]

% Set monospace CJK font (enable auto slant)
\setCJKmonofont{simfang.ttf}[AutoFakeSlant]

% Define custom font family
\setCJKfamilyfont{yahei}{msyh.ttc}[BoldFont=msyhbd.ttc]

\begin{document}

Normal text in Song font.
\textbf{Bold becomes Hei font.}
\textit{Italic becomes Kai font.}

\textsf{Sans-serif is Hei font, \textbf{no auto bold}.}

\texttt{Monospace is FangSong, \textsl{with auto slant}.}

{\CJKfamily{yahei}Microsoft YaHei font family}

\end{document}
```

--------------------------------

### Configure diagbox layout options

Source: https://context7.com/leo-liu/tex-pkg/llms.txt

Provides examples for controlling diagonal direction, explicit dimensions, inner width, margins, and trimming for specific column types.

```latex
\documentclass{article}
\usepackage{diagbox}

\begin{document}

% Direction options: NW (default), NE, SW, SE
\begin{tabular}{|c|c|}
\hline
\diagbox[dir=NW]{A}{B} & \diagbox[dir=NE]{A}{B} \\
\hline
\diagbox[dir=SW]{A}{B} & \diagbox[dir=SE]{A}{B} \\
\hline
\end{tabular}

% Explicit width and height (use \line for line height)
\begin{tabular}{|c|}
\hline
\diagbox[width=4cm,height=3\line]{line\\heads}{column\\heads} \\
\hline
\end{tabular}

% Inner width for column width matching
\begin{tabular}{|p{2cm}|}
\hline
\diagbox[innerwidth=2cm]{A}{B} \\
\hline
\end{tabular}

% Margin controls
\begin{tabular}{|c|}
\hline
\diagbox[innerleftsep=.5cm,innerrightsep=0pt]{A}{B} \\
\hline
\end{tabular}

% Trim option for @{} column specifiers
\begin{tabular}{|@{}c@{}|}
\hline
\diagbox[trim=lr]{Left}{Right} \\
\hline
\end{tabular}

\end{document}
```

--------------------------------

### Use slashbox compatibility commands

Source: https://context7.com/leo-liu/tex-pkg/llms.txt

Shows how to use legacy \backslashbox and \slashbox commands provided by diagbox for backward compatibility.

```latex
\documentclass{article}
\usepackage{diagbox}  % Automatically prevents slashbox loading

\begin{document}

% Legacy slashbox syntax (compatible mode)
\begin{tabular}{|c|c|c|}
\hline
\backslashbox[2cm]{num}{alpha} & A  & B  \\
\hline
1 & A1 & B1 \\
\hline
2 & A2 & B2 \\
\hline
\end{tabular}

% slashbox creates SW diagonal (opposite direction)
\begin{tabular}{|c|c|c|}
\hline
\slashbox[2cm]{num}{alpha} & A  & B  \\
\hline
1 & A1 & B1 \\
\hline
\end{tabular}

% Modern equivalent using diagbox
\begin{tabular}{|c|c|c|}
\hline
\diagbox[width=2cm,dir=SW]{num}{alpha} & A  & B  \\
\hline
\end{tabular}

\end{document}
```

--------------------------------

### Basic seealso Usage with Page Numbers

Source: https://context7.com/leo-liu/tex-pkg/llms.txt

Demonstrates the basic functionality of the seealso package, automatically adding page numbers to index entries and preventing duplicate references. Load seealso after makeidx.

```latex
\documentclass{article}
\usepackage{makeidx}
\usepackage{seealso}  % Must load after makeidx
\makeindex

\begin{document}

% Basic usage - page numbers are automatically added
On page 1, we discuss math.\index{math|see{mathematics}}

\newpage
On page 2, more math content.\index{math|see{mathematics}}

\newpage
On page 3, final math section.\index{math|see{mathematics}}

% Output in index will be:
% math, see mathematics 1, 2, 3
% (instead of: math, see mathematics, see mathematics, see mathematics)

% Using seepage and seealsopage explicitly
\index{algebra|seepage{mathematics}}
\index{calculus|seealsopage{analysis}}

% Multiple different cross-references
\index{foo|seepage{bar}}
\index{foo|seepage{foobaz}}
% Output: foo, see bar 1, see foobaz 3

\printindex
\end{document}
```

--------------------------------

### zhmCJK Package Options and Font Configuration

Source: https://context7.com/leo-liu/tex-pkg/llms.txt

Demonstrates various package options for zhmCJK, including encoding, fake bold/slant effects, and font embedding. It also shows an alternative syntax for font options and how to change default font families.

```latex
\documentclass{article}

% Package options
\usepackage[
  encoding=UTF8,           % Input encoding (UTF8, GBK, Bg5, etc.)
  AutoFakeBold=0.4,        % Global fake bold width (0 to disable)
  AutoFakeSlant=0.167,     % Global fake slant angle (0 to disable)
  pdffakebold=true,        % Use PDF primitives for fake bold
  cmap=unicode,            % CMap for DVIPDFMx (unicode, UniGB-UTF16-H)
  embed=true               % Embed fonts (DVIPDFMx only)
]{zhmCJK}

% Font options - alternative syntax (options after font name)
\setCJKmainfont{FandolSong-Regular.otf}[
  cmap=UniGB-UTF16-H,
  BoldFont=FandolSong-Bold.otf,
  ItalicFont=FandolKai-Regular.otf,
  BoldItalicFont=FandolHei-Bold.otf,
  SlantedFont=FandolFang-Regular.otf,
  encoding=UTF8,
  AutoFakeBold=0.5,
  AutoFakeSlant=0.2
]

% Default font family names
% \CJKrmdefault -> "rm" (for \rmfamily)
% \CJKsfdefault -> "sf" (for \sffamily)
% \CJKttdefault -> "tt" (for \ttfamily)
% \CJKfamilydefault -> \CJKrmdefault (for \normalfont)

\begin{document}

% Change default to sans-serif
\renewcommand\familydefault{\sfdefault}
\renewcommand\CJKfamilydefault{\CJKsfdefault}

% Manual bold/slant control
\CJKbold        % Enable fake bold
\CJKslant       % Enable fake slant
\CJKboldslant   % Enable both
\CJKnormal      % Reset to normal

Chinese text here.

\end{document}
```

--------------------------------

### seealso Output Customization with \seealsosetup

Source: https://context7.com/leo-liu/tex-pkg/llms.txt

Illustrates how to customize the appearance of cross-references in the index using \seealsosetup. This includes formatting page numbers, changing separators, and disabling page number output.

```latex
\documentclass{article}
\usepackage{makeidx}
\usepackage{seealso}
\makeindex

\begin{document}

% Set page numbers to italic for "see also" references
\seealsosetup[also]{pageformat=\textit{#1}}

% Customize separators globally
\seealsosetup{
  listsep={;\space},      % Before see list
  itemsep={,\space},      % Between items
  nameformat={\textsc{#1}\space}  % Format "see" name
}

% Disable page number output (show only cross-reference)
\seealsosetup[see,also]{pageformat=\SeealsoGobble{,}}

% Define custom cross-reference commands
\DeclareSeealsoMacro\seepage{see}{see}
\DeclareSeealsoMacro\seealsopage{also}{see also}

% Package options
% \usepackage[override=false]{seealso}  % Don't override \see, \seealso
% \usepackage[activecr=false]{seealso}  % Manual list output

% Manual list output when activecr=false
% Add to makeindex style file:
% delim_t "\\SeealsoPrintList"

\index{example|seepage{sample}}
See the example here.

\printindex
\end{document}
```

--------------------------------

### Create diagonal table headers with diagbox

Source: https://context7.com/leo-liu/tex-pkg/llms.txt

Demonstrates basic two-part and three-part diagonal headers, along with advanced styling options like width, direction, line color, and font customization.

```latex
\documentclass{article}
\usepackage{diagbox}

\begin{document}

% Basic two-part diagonal header
\begin{tabular}{|l|ccc|}
\hline
\diagbox{Time}{Day} & Mon & Tue & Wed \\
\hline
Morning   & used & used &      \\
Afternoon &      & used & used \\
\hline
\end{tabular}

% Three-part header with two diagonal lines
\begin{tabular}{|l|ccc|}
\hline
\diagbox{Time}{Room}{Day} & Mon & Tue & Wed \\
\hline
Morning   & A101 & B202 & C303 \\
Afternoon & D404 & E505 & F606 \\
\hline
\end{tabular}

% Advanced options: width, direction, line styling
\begin{tabular}{|@{}l|c|c|r@{}|}
\hline
\diagbox[width=5em,trim=l]{Time}{Day} & Mon & Tue & Wed\\
\hline
Morning   & used & used & used\\
\hline
Afternoon &      & used & \diagbox[dir=SW,height=2em,trim=r]{A}{B} \\
\hline
\end{tabular}

% Line customization with color and width
\begin{tabular}{|c|}
\hline
\diagbox[linewidth=2pt,linecolor=blue]{AAA}{BBB} \\
\hline
\end{tabular}

% Font customization
\begin{tabular}{|c|}
\hline
\diagbox[font=\footnotesize\itshape]{Small}{Italic} \\
\hline
\end{tabular}

\end{document}
```

--------------------------------

### Implement Encoding Autodetection with autozhenc

Source: https://context7.com/leo-liu/tex-pkg/llms.txt

Automatically switch between UTF-8 and legacy encodings like GBK based on character detection.

```latex
\documentclass{article}

% Option is a single Chinese character for testing
\usepackage[]{autozhenc}

% After loading, check encoding
\ifUTF
  \usepackage[UTF8]{ctex}
\else
  \usepackage[GBK]{ctex}
\fi

% Or use the detected encoding directly
% \autozhenc expands to "UTF8" or \fallbackzhenc

\begin{document}

% Runtime test with different character
\testzhenc{}
Detected encoding: \autozhenc

% Customize fallback encoding (default is GBK)
\def\fallbackzhenc{Bg5}

\end{document}
```

--------------------------------

### Configure Plain TeX CJK Support with zhtex

Source: https://context7.com/leo-liu/tex-pkg/llms.txt

Use this configuration to enable UTF-8 Chinese character support in Plain TeX documents, specifically for MetaPost integration.

```tex
% Plain TeX file with Chinese support
\input zhtex.tex

% Configure font and size
\def\zhfont{gbsnu}    % Font name prefix
\def\zhsize{12}       % Font size in points

% Custom inter-character spacing
\def\skipzh{\hskip 0em plus 0.2em minus 0.1em}

% Now Chinese characters can be used directly (UTF-8)
This is English text with Chinese characters.

\bye
```

=== COMPLETE CONTENT === This response contains all available snippets from this library. No additional content exists. Do not make further requests.