Write a Regular Expression

2025-10-06 16:59:53 0
Text Editor

Generates regular expression for use Visual Studio, Javascript, PHP, C#, Ruby and Java. Please share suggestions via LinkedIn - click the link to contact

Certainly! Below are the regular expressions tailored for various programming languages, each with a brief annotation and explanation. Please replace [TOPIC] with the specific pattern you're targeting.

Javascript

// Regular expression for [TOPIC]
const regexJS = /patternHere/gi; // 'gi' flags for global and case-insensitive
Annotation: Adjust patternHere with the specific pattern. The gi flags allow for global search and case-insensitivity.

C

// Regular expression for [TOPIC]
string regexCS = @"patternHere"; // Use @ to define a verbatim string
Annotation: Replace patternHere with the specific pattern. In C#, verbatim strings (@"") prevent escape character interpretation.

PHP

// Regular expression for [TOPIC]
$regexPHP = '/patternHere/i'; // 'i' flag for case-insensitive
Annotation: The i flag after the pattern makes the regex case-insensitive.

Ruby

# Regular expression for [TOPIC]
regexRuby = /patternHere/i # 'i' for case-insensitive
Annotation: In Ruby, appending i to the regex makes it case-insensitive.

Java

// Regular expression for [TOPIC]
String regexJava = "patternHere"; // No flags in Java, use Pattern.compile with flags
Annotation: Java does not use inline flags. To set flags like case-insensitive, use Pattern.compile("patternHere", Pattern.CASE_INSENSITIVE).

Bash

# Regular expression for [TOPIC]
regexBash='patternHere' # Use with grep or other command-line tools
Annotation: In Bash, regexes are often used with command-line tools like grep. Flags can be added as options to the command.

For all of these examples, replace patternHere with the actual pattern you need for [TOPIC]. If you provide the specific [TOPIC], I can generate the actual regex pattern for you.

Instructions: Replace `[LANGUAGE]` with your target language (e.g., English) and `[TOPIC]` with your article subject (e.g., 'How to Start a Successful Blog').