regex101: JavaScript Match Workspace

Group 1(\\usepackage{(?:tikz|pgfplots)}|\\(?:tikzset|pgfplotsset){(?:[^{}]+|{(?:[^{}]+|{(?:[^{}]+|{[^{}]+})+})+})+}|\\(?:usetikzlibrary|usepgfplotslibrary){[\w\.,]+}|\\definecolor{\w+}{\w+}{[^}]+}|\\colorlet{\w+}{{[^}]+}})

1st Alternative\\usepackage{(?:tikz|pgfplots)}

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

usepackage{the literal text usepackage{ (case sensitive)

Non-Capturing Group(?:tikz|pgfplots)

1st Alternativetikz

tikzthe literal text tikz (case sensitive)

2nd Alternativepgfplots

pgfplotsthe literal text pgfplots (case sensitive)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

2nd Alternative\\(?:tikzset|pgfplotsset){(?:[^{}]+|{(?:[^{}]+|{(?:[^{}]+|{[^{}]+})+})+})+}

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Non-Capturing Group(?:tikzset|pgfplotsset)

1st Alternativetikzset

tikzsetthe literal text tikzset (case sensitive)

2nd Alternativepgfplotsset

pgfplotssetthe literal text pgfplotsset (case sensitive)

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Non-Capturing Group(?:[^{}]+|{(?:[^{}]+|{(?:[^{}]+|{[^{}]+})+})+})+

+repeats the group contents below at least once:

1st Alternative[^{}]+

Negated Character Class[^{}]+

+matches at least one character outside the set below:

{the literal { (123₁₀ / 173₈ / 7B₁₆)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

2nd Alternative{(?:[^{}]+|{(?:[^{}]+|{[^{}]+})+})+}

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Non-Capturing Group(?:[^{}]+|{(?:[^{}]+|{[^{}]+})+})+

+repeats the group contents below at least once:

1st Alternative[^{}]+

Negated Character Class[^{}]+

+matches at least one character outside the set below:

{the literal { (123₁₀ / 173₈ / 7B₁₆)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

2nd Alternative{(?:[^{}]+|{[^{}]+})+}

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Non-Capturing Group(?:[^{}]+|{[^{}]+})+

+repeats the group contents below at least once:

1st Alternative[^{}]+

Negated Character Class[^{}]+

+matches at least one character outside the set below:

{the literal { (123₁₀ / 173₈ / 7B₁₆)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

2nd Alternative{[^{}]+}

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Negated Character Class[^{}]+

+matches at least one character outside the set below:

{the literal { (123₁₀ / 173₈ / 7B₁₆)

}the literal } (125₁₀ / 175₈ / 7D₁₆)

3rd Alternative\\(?:usetikzlibrary|usepgfplotslibrary){[\w\.,]+}

\\the literal \ (92₁₀ / 134₈ / 5C₁₆)

Non-Capturing Group(?:usetikzlibrary|usepgfplotslibrary)

1st Alternativeusetikzlibrary

usetikzlibrarythe literal text usetikzlibrary (case sensitive)

2nd Alternativeusepgfplotslibrary

{the literal { (123₁₀ / 173₈ / 7B₁₆)

Character Class[\w\.,]+

}the literal } (125₁₀ / 175₈ / 7D₁₆)

4th Alternative\\definecolor{\w+}{\w+}{[^}]+}

5th Alternative\\colorlet{\w+}{{[^}]+}}

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Search reference

Regular Expression

(\\usepackage{(?:tikz|pgfplots)}|\\(?:tikzset|pgfplotsset){(?:[^{}]+|{(?:[^{}]+|{(?:[^{}]+|{[^{}]+})+})+})+}|\\(?:usetikzlibrary|usepgfplotslibrary){[\w\.,]+}|\\definecolor{\w+}{\w+}{[^}]+}|\\colorlet{\w+}{{[^}]+}})

New

\documentclass{article}
\usepackage{tikz}
\usetikzlibrary{decorations.markings}

\tikzset{
    ->-/.style={
        postaction=decorate,
        decoration={markings,mark=at position #1 with \arrow{>}}
    }
}

\begin{document}
\begin{center}
    \begin{tikzpicture}
        \draw[->-=0.5] (0,0) -- (3,-2);
    \end{tikzpicture}
\end{center}
\end{document}

Regular Expressions 101

Regular Expression

Extraction