A comprehensive CLI utility for validating, extracting, and replacing text using powerful regular expression patterns.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install regex-tester
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install regex-tester using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is Regex Tester?
The Regex Tester is a specialized tool designed to streamline the development and debugging of regular expressions. As a core part of the Openclaw Skills ecosystem, it offers a robust environment for developers to verify pattern accuracy, test capture groups, and perform complex text substitutions. By providing immediate feedback and a library of pre-configured patterns, it eliminates the guesswork often associated with regex construction.
This skill is built for speed and technical precision, allowing users to handle everything from basic input validation to advanced log file analysis. Whether you are a frontend developer or a backend engineer, utilizing this skill within the Openclaw Skills framework ensures that your data processing logic is both accurate and efficient.
Regex Tester Use Cases
- Validating user input formats like email addresses, phone numbers, and identity cards.
- Extracting structured data points such as URLs, dates, or error codes from unstructured log files.
- Performing batch text cleaning and formatting using regex-based substitutions.
- Debugging complex nested capture groups to ensure data is parsed correctly in application logic.
- Generating standard compliant patterns for common requirements like IPv4 addresses or passwords.
How Regex Tester Works
- Choose a specific operation mode such as match, findall, groups, or sub based on your technical requirement.
- Provide the regular expression pattern and the target text as arguments to the CLI script.
- The skill executes the logic using its internal engine, processing the regex against the provided string.
- View the structured output, which includes matched results, specific group contents, or the modified string after substitution.
Regex Tester Setup
To get started with this component of the Openclaw Skills collection, ensure you have Python 3 installed. Navigate to the skill directory and run the main script.
# Check the available commands and help documentation
python3 script/main.py --help
Regex Tester Data Schema & Taxonomy
The skill processes inputs via command-line arguments and returns results in a structured format. Below is the mapping of operations to their expected outputs:
| Command | Purpose | Output Format |
|---|---|---|
| match | Verify if a pattern matches text | Boolean and match details |
| findall | Extract all occurrences | List of matching strings |
| groups | Identify specific capture groups | Indexed list of group content |
| sub | Replace text based on pattern | The resulting modified string |
| pattern | Retrieve a standard regex | A pre-defined regex string |
Regex Tester Advanced Features
- Integrated pattern library containing optimized regex for emails, Chinese phone numbers, ID cards, and more.
- Support for advanced backreferences in substitution operations (e.g., using \1, \2 for group reinsertion).
- Non-greedy matching support to prevent accidental over-matching in complex HTML or log files.
- Full Unicode support, enabling seamless processing of Chinese characters and other non-ASCII symbols.
- High-performance execution suitable for integration into larger automated pipelines within Openclaw Skills.
SKILL.md
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