\documentclass[10pt,a4paper]{article}

% Packages
\usepackage{fancyhdr}           % For header and footer
\usepackage{multicol}           % Allows multicols in tables
\usepackage{tabularx}           % Intelligent column widths
\usepackage{tabulary}           % Used in header and footer
\usepackage{hhline}             % Border under tables
\usepackage{graphicx}           % For images
\usepackage{xcolor}             % For hex colours
%\usepackage[utf8x]{inputenc}    % For unicode character support
\usepackage[T1]{fontenc}        % Without this we get weird character replacements
\usepackage{colortbl}           % For coloured tables
\usepackage{setspace}           % For line height
\usepackage{lastpage}           % Needed for total page number
\usepackage{seqsplit}           % Splits long words.
%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
\usepackage[normalem]{ulem}     % For underlining links
% Most of the following are not required for the majority
% of cheat sheets but are needed for some symbol support.
\usepackage{amsmath}            % Symbols
\usepackage{MnSymbol}           % Symbols
\usepackage{wasysym}            % Symbols
%\usepackage[english,german,french,spanish,italian]{babel}              % Languages

% Document Info
\author{djhansel}
\pdfinfo{
  /Title (net-regular-expressions.pdf)
  /Creator (Cheatography)
  /Author (djhansel)
  /Subject (.Net Regular Expressions Cheat Sheet)
}

% Lengths and widths
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\addtolength{\hoffset}{-3cm}
\addtolength{\voffset}{-2cm}
\setlength{\tabcolsep}{0.2cm} % Space between columns
\setlength{\headsep}{-12pt} % Reduce space between header and content
\setlength{\headheight}{85pt} % If less, LaTeX automatically increases it
\renewcommand{\footrulewidth}{0pt} % Remove footer line
\renewcommand{\headrulewidth}{0pt} % Remove header line
\renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit
% This two commands together give roughly
% the right line height in the tables
\renewcommand{\arraystretch}{1.3}
\onehalfspacing

% Commands
\newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour
\newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols
\newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns
\newcommand{\tn}{\tabularnewline} % Required as custom column type in use

% Font and Colours
\definecolor{HeadBackground}{HTML}{333333}
\definecolor{FootBackground}{HTML}{666666}
\definecolor{TextColor}{HTML}{333333}
\definecolor{DarkBackground}{HTML}{66A0BD}
\definecolor{LightBackground}{HTML}{F5F9FA}
\renewcommand{\familydefault}{\sfdefault}
\color{TextColor}

% Header and Footer
\pagestyle{fancy}
\fancyhead{} % Set header to blank
\fancyfoot{} % Set footer to blank
\fancyhead[L]{
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{C}
    \SetRowColor{DarkBackground}
    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
    }
\end{tabulary}
\columnbreak
\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{.Net Regular Expressions Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{djhansel} via \textcolor{DarkBackground}{\uline{cheatography.com/21044/cs/3891/}}}
\end{tabulary}
\end{multicols}}

\fancyfoot[L]{ \footnotesize
\noindent
\begin{multicols}{3}
\begin{tabulary}{5.8cm}{LL}
  \SetRowColor{FootBackground}
  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}djhansel \\
  \uline{cheatography.com/djhansel} \\
  \end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 12th May, 2016.\\
   Page {\thepage} of \pageref{LastPage}.
\end{tabulary}
\vfill
\columnbreak
\begin{tabulary}{5.8cm}{L}
  \SetRowColor{FootBackground}
  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}}  \\
  \SetRowColor{white}
  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
\raggedright
\raggedcolumns

% Set font size to small. Switch to any value
% from this page to resize cheat sheet text:
% www.emerson.emory.edu/services/latex/latex_169.html
\footnotesize % Small font.

\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Characters}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{The following expressions will match single characters. For more information see Microsoft's article on \{\{link="https://msdn.microsoft.com/en-us/library/20bw873z.aspx"\}\}Character Classes\{\{/link\}\}.% Row Count 4 (+ 4)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.56 cm} x{5.44 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Characters}}  \tn
% Row 0
\SetRowColor{LightBackground}
Ordinary characters & Characters other than . \$ \textasciicircum{} \{ {[} ( | ) * + ? \textbackslash{} match themselves. \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
. & Matches any character excluding the line feed. Includes the line feed in single-line mode. \tn 
% Row Count 7 (+ 4)
% Row 2
\SetRowColor{LightBackground}
{\bf{{[}}}abc{\bf{{]}}} & A character class (may contain more than one character). Matches any character that is contained within the brackets, in no particular order. \tn 
% Row Count 13 (+ 6)
% Row 3
\SetRowColor{white}
{\bf{{[}}}\textasciicircum{}abc{\bf{{]}}} & The opposite of {[} {]}. Matches all characters not contained within the brackets. \tn 
% Row Count 16 (+ 3)
% Row 4
\SetRowColor{LightBackground}
{\bf{{[}}}a-z{\bf{{]}}} & Character range: Matches any single character in the range from first (a) to last (z). \tn 
% Row Count 20 (+ 4)
% Row 5
\SetRowColor{white}
{\bf{\textbackslash{}w}} & Matches an alpha-numeric character (a-z, A-Z, 0-9, and underscore). \tn 
% Row Count 23 (+ 3)
% Row 6
\SetRowColor{LightBackground}
{\bf{\textbackslash{}W}} & The opposite of \textbackslash{}w. Matches any non-alphanumeric character. \tn 
% Row Count 26 (+ 3)
% Row 7
\SetRowColor{white}
{\bf{\textbackslash{}d}} & Matches a decimal character (0-9). \tn 
% Row Count 28 (+ 2)
% Row 8
\SetRowColor{LightBackground}
{\bf{\textbackslash{}D}} & The opposite of \textbackslash{}d. Matches any non-decimal character. \tn 
% Row Count 30 (+ 2)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{2.56 cm} x{5.44 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Characters (cont)}}  \tn
% Row 9
\SetRowColor{LightBackground}
{\bf{\textbackslash{}s}} & Matches a character of whitespace (space, tab, carriage return, line feed). \tn 
% Row Count 3 (+ 3)
% Row 10
\SetRowColor{white}
{\bf{\textbackslash{}S}} & The opposite of \textbackslash{}s. Matches any non-whitespace character. \tn 
% Row Count 6 (+ 3)
% Row 11
\SetRowColor{LightBackground}
{\bf{\textbackslash{}r}} & Matches a carriage return. \tn 
% Row Count 7 (+ 1)
% Row 12
\SetRowColor{white}
{\bf{\textbackslash{}n}} & Matches a new line (line feed). \tn 
% Row Count 9 (+ 2)
% Row 13
\SetRowColor{LightBackground}
{\bf{\textbackslash{}f}} & Matches a form feed. \tn 
% Row Count 10 (+ 1)
% Row 14
\SetRowColor{white}
{\bf{\textbackslash{}t}} & Matches a tab. \tn 
% Row Count 11 (+ 1)
% Row 15
\SetRowColor{LightBackground}
{\bf{\textbackslash{}v}} & Matches a vertical tab. \tn 
% Row Count 12 (+ 1)
% Row 16
\SetRowColor{white}
{\bf{\textbackslash{}a}} & Matches a bell character. \tn 
% Row Count 13 (+ 1)
% Row 17
\SetRowColor{LightBackground}
{\bf{\textbackslash{}b}} & In a character class, matches a backspace. \tn 
% Row Count 15 (+ 2)
% Row 18
\SetRowColor{white}
{\bf{\textbackslash{}e}} & Matches an escape. \tn 
% Row Count 16 (+ 1)
% Row 19
\SetRowColor{LightBackground}
\textbackslash{}040 & Uses octal representation to specify a character (octal consists of up to three digits). \tn 
% Row Count 20 (+ 4)
% Row 20
\SetRowColor{white}
{\bf{\textbackslash{}x}}20 & Uses hexadecimal representation to specify a character (hex consists of exactly two digits). \tn 
% Row Count 24 (+ 4)
% Row 21
\SetRowColor{LightBackground}
{\bf{\textbackslash{}c}}0003 & Matches the specified 4-digit ASCII control character. \tn 
% Row Count 26 (+ 2)
% Row 22
\SetRowColor{white}
{\bf{\textbackslash{}u}}0020 & Matches a Unicode character by using hexadecimal representation (exactly four digits). \tn 
% Row Count 30 (+ 4)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{2.56 cm} x{5.44 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Characters (cont)}}  \tn
% Row 23
\SetRowColor{LightBackground}
{\bf{\textbackslash{}p\{}}name{\bf{\}}} & Matches any single character in the Unicode general category or named block specified by name. \tn 
% Row Count 4 (+ 4)
% Row 24
\SetRowColor{white}
{\bf{\textbackslash{}P\{}}name{\bf{\}}} & Matches any single character that is not in the Unicode general category or named block specified by name. \tn 
% Row Count 8 (+ 4)
% Row 25
\SetRowColor{LightBackground}
\textbackslash{} & In front of any of the special characters (. \$ \textasciicircum{} \{ {[} ( | ) * + ? \textbackslash{}), this will match the character itself. \tn 
% Row Count 12 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Assertions}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{The following expressions specify the location to search for a match, but do not match anything themselves.% Row Count 3 (+ 3)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{1.84 cm} x{6.16 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Assertions}}  \tn
% Row 0
\SetRowColor{LightBackground}
\textasciicircum{} & The match must start at the beginning of the string (or beginning of the line in multiline mode). \tn 
% Row Count 4 (+ 4)
% Row 1
\SetRowColor{white}
\$ & The match must occur at the end of the string or before \textbackslash{}n at the end of the string (or end of the line in multiline mode). \tn 
% Row Count 9 (+ 5)
% Row 2
\SetRowColor{LightBackground}
\textbackslash{}A & The match must occur at the start of the string. \tn 
% Row Count 11 (+ 2)
% Row 3
\SetRowColor{white}
\textbackslash{}Z & The match must occur at the end of the string or before \textbackslash{}n at the end of the string. \tn 
% Row Count 14 (+ 3)
% Row 4
\SetRowColor{LightBackground}
\textbackslash{}z & The match must occur at the end of the string. \tn 
% Row Count 16 (+ 2)
% Row 5
\SetRowColor{white}
\textbackslash{}G & The match must occur at the point where the previous match ended. \tn 
% Row Count 19 (+ 3)
% Row 6
\SetRowColor{LightBackground}
\textbackslash{}b & Asserts a boundary between word and non-word characters. \tn 
% Row Count 21 (+ 2)
% Row 7
\SetRowColor{white}
\textbackslash{}B & The opposite of \textbackslash{}b. Asserts a location that is not a boundary between word and non-word characters. \tn 
% Row Count 25 (+ 4)
% Row 8
\SetRowColor{LightBackground}
\seqsplit{(?=pattern)} & Asserts that the specified pattern exists immediately after this location. Known as a positive lookahead. \tn 
% Row Count 29 (+ 4)
% Row 9
\SetRowColor{white}
(?!pattern) & Asserts that the specified pattern does not exist immediately after this location. Known as a negative lookahead. \tn 
% Row Count 33 (+ 4)
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{x{1.84 cm} x{6.16 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Assertions (cont)}}  \tn
% Row 10
\SetRowColor{LightBackground}
(?\textless{}=pattern) & Asserts that the specified pattern exists immediately before this location. Known as a positive lookbehind. \tn 
% Row Count 4 (+ 4)
% Row 11
\SetRowColor{white}
(?\textless{}!pattern) & Asserts that the specified pattern does not exist immediately before this location. Known as a negative lookbehind. \tn 
% Row Count 8 (+ 4)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}