I am facing an issue with replacing the given string
\section{Welcome to $\mathbb{R}^n$}
Some content
with
<h1>Welcome to $\mathbb{R}^n$</h1>
Some content
The challenge lies in having opening { and } between the curly brackets themselves. I attempted using the following code snippet in JavaScript:
strOutput = strOutput.replace(/\\section\*\s*\{([^}]*)\}/g, "<h1>$1</h1>");
However, it didn't work as expected. How should I proceed to solve this problem?
An illustration is provided below:
let text = String.raw`\section{Welcome to $\mathbb{R}^n$}`
let output = `<h1>${text.match(/(?<={).*(?=})/)}</h1>`
console.log(output)In the scenario described by the original poster, involving both nested and un-nested curly braces, a regex pattern is necessary to specifically target and extract the content between two braces (opening/closing) that also includes another pair of opening/closing braces ...
.../\{(?<nested>[^{}]+\{[^{}]+\}[^{}]+)\}/g
const sample = String.raw`\section{Welcome to $\mathbb{R}^n$} \textbf{Other text} \textbf{Other text} \textbf{Other text} \textbf{Other text} \section{Welcome to $\mathbb{R}^n$} \textbf{Other text}\section{Welcome to $\mathbb{R}^n$} \textbf{Other text} \textbf{Other text} \textbf{Other text} \textbf{Other text} \section{Welcome to $\mathbb{R}^n$} \textbf{Other text}`;
// see ... [https://regex101.com/r/z4hZUt/1/]
const regXNested = /\{(?<nested>[^{}]+\{[^{}]+\}[^{}]+)\}/g;
console.log(
sample
.replace(regXNested, (match, nested) => `<h1>${ nested }</h1>`)
)How about trying this approach:
const string = String.raw`\subsection{Hello to $\mathbb{R}^n$}`
let match = string.replace(/\\subsection\s*\{(.*)}/g, "$1")
let output = `<h2>${match}</h2>`
console.log(output)The issue with your code was the usage of \*, which represents a literal asterisks. Apart from that, you were very close!
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