\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{sahusourabh} \pdfinfo{ /Title (python-regular-expression-cheatsheet.pdf) /Creator (Cheatography) /Author (sahusourabh) /Subject (PYTHON REGULAR EXPRESSION CHEATSHEET Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \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}{9E1CA3} \definecolor{LightBackground}{HTML}{F8F0F9} \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{PYTHON REGULAR EXPRESSION CHEATSHEET Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{sahusourabh} via \textcolor{DarkBackground}{\uline{cheatography.com/156407/cs/33247/}}} \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}sahusourabh \\ \uline{cheatography.com/sahusourabh} \\ \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Published 19th July, 2022.\\ Updated 19th July, 2022.\\ 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*}{3} \begin{tabularx}{5.377cm}{x{1.55618 cm} x{1.51041 cm} x{1.51041 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{What you want do with regular expression?}} \tn % Row 0 \SetRowColor{LightBackground} Regular expressions can be used to check if a string contains the specified search pattern. & Regular expressions are used to remove the unnecessary words & It also helps in finding out the correctness of the data and even operations such as finding, replacing and formatting the data is possible using Regular Expressions \tn % Row Count 13 (+ 13) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{2.53827 cm} x{2.43873 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Group/Ranges}} \tn % Row 0 \SetRowColor{LightBackground} . & any single character \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} (a|b) & a or b \tn % Row Count 3 (+ 1) % Row 2 \SetRowColor{LightBackground} {[}abc{]} & Range (a or b or c) \tn % Row Count 4 (+ 1) % Row 3 \SetRowColor{white} {[}\textasciicircum{}abc{]} & Not (a or b or c) \tn % Row Count 5 (+ 1) % Row 4 \SetRowColor{LightBackground} {[}a-z{]} & Lower case letter from a to z \tn % Row Count 7 (+ 2) % Row 5 \SetRowColor{white} {[}A-Z{]} Upper case letter from A to Z & Upper case letter from A to Z \tn % Row Count 9 (+ 2) % Row 6 \SetRowColor{LightBackground} {[}0-10{]} & Digit from 0 to10 \tn % Row Count 10 (+ 1) % Row 7 \SetRowColor{white} \textbackslash{}x & Group/subpattern number "x" \tn % Row Count 12 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.4977 cm} x{4.4793 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Escape Sequences}} \tn % Row 0 \SetRowColor{LightBackground} \textbackslash{} & Escape following character \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \textbackslash{}Q & Begin literal sequence \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \textbackslash{}E & End literal sequence \tn % Row Count 3 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.44333 cm} x{3.53367 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Assertions}} \tn % Row 0 \SetRowColor{LightBackground} ?= & Lookahead assertion \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} ?! & Negative lookahead \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} ?\textless{}= & Lookbehind assertion \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} ?!= or ?\textless{}! & Negative lookbehind \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} ?\textgreater{} & Once-only Subexpression \tn % Row Count 5 (+ 1) % Row 5 \SetRowColor{white} ?() & Condition {[}if then{]} \tn % Row Count 6 (+ 1) % Row 6 \SetRowColor{LightBackground} ?()| & Condition {[}if then else{]} \tn % Row Count 7 (+ 1) % Row 7 \SetRowColor{white} ?\# & Comment \tn % Row Count 8 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{USE}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{import re} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{string = """I am Sourabh and my mobile no is 9479864026"""} \tn % Row Count 3 (+ 2) % Row 2 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{regex = '\textbackslash{}d+'} \tn % Row Count 4 (+ 1) % Row 3 \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{match = re.findall(regex, string)} \tn % Row Count 5 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{print(match)} \tn % Row Count 6 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.4977 cm} x{4.4793 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Anchors}} \tn % Row 0 \SetRowColor{LightBackground} \textasciicircum{} & Start of string, or start of line in multi-line pattern \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} \textbackslash{}A & Start of string \tn % Row Count 3 (+ 1) % Row 2 \SetRowColor{LightBackground} \$ & End of string, or end of line in multi-line pattern \tn % Row Count 5 (+ 2) % Row 3 \SetRowColor{white} \textbackslash{}Z & End of string \tn % Row Count 6 (+ 1) % Row 4 \SetRowColor{LightBackground} \textbackslash{}b & Word boundary \tn % Row Count 7 (+ 1) % Row 5 \SetRowColor{white} \textbackslash{}B & Not word boundary \tn % Row Count 8 (+ 1) % Row 6 \SetRowColor{LightBackground} \textbackslash{}\textless{} & Start of word \tn % Row Count 9 (+ 1) % Row 7 \SetRowColor{white} \textbackslash{}\textgreater{} & End of word \tn % Row Count 10 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.4977 cm} x{4.4793 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Characters}} \tn % Row 0 \SetRowColor{LightBackground} \textbackslash{}c & Control character \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \textbackslash{}s & White space \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \textbackslash{}S & Not white space \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} \textbackslash{}d & Digit \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} \textbackslash{}D & Not digit \tn % Row Count 5 (+ 1) % Row 5 \SetRowColor{white} \textbackslash{}w & Word \tn % Row Count 6 (+ 1) % Row 6 \SetRowColor{LightBackground} \textbackslash{}W & Not word \tn % Row Count 7 (+ 1) % Row 7 \SetRowColor{white} \textbackslash{}x & Hexadecimal digit \tn % Row Count 8 (+ 1) % Row 8 \SetRowColor{LightBackground} \textbackslash{}O & Octal digit \tn % Row Count 9 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.4977 cm} x{4.4793 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Pattern Modifiers}} \tn % Row 0 \SetRowColor{LightBackground} g & Global match \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} i * & Case-insensitive \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} m * & Multiple lines \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} s * & Treat string as single line \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} x * & Allow comments and whitespace in pattern \tn % Row Count 6 (+ 2) % Row 5 \SetRowColor{white} e * & Evaluate replacement \tn % Row Count 7 (+ 1) % Row 6 \SetRowColor{LightBackground} U * & Ungreedy pattern \tn % Row Count 8 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{USE}} \tn \SetRowColor{white} \mymulticolumn{1}{x{5.377cm}}{import re \newline % Row Count 1 (+ 1) string = 'hello 12 hi 89. Its me 343' \newline % Row Count 2 (+ 1) pattern = '\textbackslash{}d+' \newline % Row Count 3 (+ 1) result = re.findall(pattern, string) \newline % Row Count 4 (+ 1) print(result) \newline % Row Count 5 (+ 1) output\#1289343% Row Count 6 (+ 1) } \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{X} \SetRowColor{DarkBackground} \mymulticolumn{1}{x{5.377cm}}{\bf\textcolor{white}{USE}} \tn \SetRowColor{LightBackground} \mymulticolumn{1}{x{5.377cm}}{import re \newline \newline phone = "MY phone is +91-9479-86-40-26r" \newline \newline \# Remove anything other than digits \newline num = re.sub(r'\textbackslash{}D', "", phone) \newline print ("Phone Num : ", num) \newline \newline output Phone num : 9479864026} \tn \hhline{>{\arrayrulecolor{DarkBackground}}-} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.4177 cm} x{1.37841 cm} p{0.79363 cm} x{1.58726 cm} } \SetRowColor{DarkBackground} \mymulticolumn{4}{x{5.377cm}}{\bf\textcolor{white}{Quantifiers}} \tn % Row 0 \SetRowColor{LightBackground} * & 0 or more & \{5\} & exactly 5 \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} + & 1 or more & \{5,\} & 5 or more \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} ? & 0 or 1 & \{1,5\} & 1,2,3,4 or 5 \tn % Row Count 3 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}----} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.84609 cm} x{4.13091 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Special Characters}} \tn % Row 0 \SetRowColor{LightBackground} \textbackslash{}n & New line \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \textbackslash{}r & Carriage return \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} \textbackslash{}t & Tab \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} \textbackslash{}v & Vertical tab \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} \textbackslash{}f & Form feed \tn % Row Count 5 (+ 1) % Row 5 \SetRowColor{white} \textbackslash{}xxx & Octal character xxx \tn % Row Count 6 (+ 1) % Row 6 \SetRowColor{LightBackground} \textbackslash{}xhh & Hex character hh \tn % Row Count 7 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.4977 cm} x{4.4793 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{String Manipulation}} \tn % Row 0 \SetRowColor{LightBackground} \$` & Before matched string \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \$' & After matched string \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} + & Last matched string \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} \$\& & Entire matched string \tn % Row Count 4 (+ 1) % Row 4 \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{import repattern = '\textasciicircum{}a...s\$' test\_string = 'abyss' result = re.match(pattern, test\_string) if result: print("Search successful.") else: print("Search unsuccessful.")} \tn % Row Count 8 (+ 4) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.4977 cm} x{4.4793 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{String Manipulation}} \tn % Row 0 \SetRowColor{LightBackground} \$` & Before matched string \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} \$' & After matched string \tn % Row Count 2 (+ 1) % Row 2 \SetRowColor{LightBackground} + & Last matched string \tn % Row Count 3 (+ 1) % Row 3 \SetRowColor{white} \$\& & Entire matched string \tn % Row Count 4 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.59501 cm} x{1.73926 cm} x{2.24273 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{posix}} \tn % Row 0 \SetRowColor{LightBackground} {[}:upper:{]} & Upper case letters & {[}A-Z{]} \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} {[}:lower:{]} & lower case letter & {[}a-z{]} \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} {[}:alpha:{]} & alphabets & {[}a-zA-Z{]} \tn % Row Count 6 (+ 2) % Row 3 \SetRowColor{white} {[}:alnum:{]} & alphanumeric & {[}a-zA-z0-9{]} \tn % Row Count 8 (+ 2) % Row 4 \SetRowColor{LightBackground} {[}:digit:{]} & Digits & {[}0-9{]} \tn % Row Count 10 (+ 2) % Row 5 \SetRowColor{white} {[}:xdigit:{]} & Hexadecimal & {[}A-Fa-f0-9{]} \tn % Row Count 12 (+ 2) % Row 6 \SetRowColor{LightBackground} {[}:punct:{]} & Punctuation & {[}!"\textbackslash{}\#\$\%\&'()*+, \textbackslash{}-./:;\textless{}=\textgreater{}?@\textbackslash{}{[} \textbackslash{}\textbackslash{}\textbackslash{}{]}\textasciicircum{}\_'\{|\}\textasciitilde{}{]} \tn % Row Count 15 (+ 3) % Row 7 \SetRowColor{white} {[}:blank:{]} & Space and tab & \tn % Row Count 17 (+ 2) % Row 8 \SetRowColor{LightBackground} {[}:space:{]} & Blank characters & \tn % Row Count 19 (+ 2) % Row 9 \SetRowColor{white} {[}:cntrl:{]} & Control characters & \tn % Row Count 21 (+ 2) % Row 10 \SetRowColor{LightBackground} {[}:graph:{]} & Printed characters & \tn % Row Count 23 (+ 2) % Row 11 \SetRowColor{white} {[}:print:{]} & Printed characters and spaces & \tn % Row Count 25 (+ 2) % Row 12 \SetRowColor{LightBackground} {[}:word:{]} & Digits, letters and underscore & \tn % Row Count 27 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}