regex-tester

Name: regex-tester
Availability: InStock
Author: AIDotNet

Test and debug regular expression patterns against input text.

84|15|Updated Dec 31, 2025

Search Tags:#debugging #validation #text processing #pattern matching #regex #capture groups

Ready to run

npx skills add https://github.com/AIDotNet/MoYuCode --skill regex-tester

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: regex-tester
Source: https://github.com/AIDotNet/MoYuCode/tree/main/skills/tools/regex-tester
Command: npx skills add https://github.com/AIDotNet/MoYuCode --skill regex-tester

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill helps users test and debug regular expressions, making it easier to work with complex text patterns.

Core Features & Use Cases

Pattern Matching: Test if a regex pattern matches a given text.
Capture Groups: Visualize and extract captured groups from matches.
Common Patterns: Utilize a library of pre-defined common regex patterns (e.g., email, URL).
Use Case: You have a log file and need to extract all email addresses. You can use this skill to test your email regex pattern against a sample log line.

Quick Start

Use the regex-tester skill to test the pattern '\d+' against the text 'abc123def456'.

Frequently Asked Questions about regex-tester

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I test a regex pattern against input text to see capture groups?▼

You test regex patterns by compiling them with Python's re module to match input text and extract capture groups. This highlights matches and visualizes captured data for text processing and data validation tasks.

What is regex debugging and when do I need pattern matching for text processing?▼

Regex debugging verifies that regular expressions correctly match intended text patterns. You need pattern matching for text processing tasks like data validation and log analysis when extracting specific information from input text.

Can I use Python's re module for log analysis and extracting emails?▼

Yes, Python's re module supports log analysis by compiling regex patterns to match sample log lines. You can extract targeted data like email addresses or URLs by utilizing pre-defined common regex patterns.

Does this pattern matching approach support pre-defined common regex patterns like URLs?▼

Yes, pattern matching supports a library of pre-defined common regex patterns including emails and URLs. You utilize these patterns to test matches and extract capture groups without writing complex regular expressions from scratch.

Why does my regex pattern not working during data validation?▼

Regex patterns fail during data validation due to incorrect compilation or unescaped characters in input text. Testing and debugging regular expressions highlights matches and captures groups to identify pattern mismatches.