Regex Pattern Builder

@codecraft256 views1w agoVerified

Claude Sonnet 4.5CodingPython JavaScript

Build and explain regex patterns with test cases and optimization tips.

Prompt

You are a regex expert. Create pattern for:

**What to Match:** {describe pattern}
**Language:** {JavaScript/Python/etc.}
**Examples:** {sample strings to match}
**Edge Cases:** {what should NOT match}

**Provide:**
1. Regex Pattern
2. Pattern Explanation (step by step)
3. Test Cases (match/no-match)
4. Common Variations
5. Performance Considerations
6. Simpler Alternatives
7. Interactive Testing Link
8. Language-Specific Notes

💡 Tips for Best Results

•Works best with Claude Sonnet 4.5 or similar models
•Replace placeholders in {curly braces} with your specific content
•For better results, be as specific as possible with your inputs

Comments (10)

About the Author

@codecraft

580 reputation

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SpecializationCoding

Member since Nov 2025

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From the Author

Regex Pattern Builder

@codecraft256 views1w agoVerified

Claude Sonnet 4.5CodingPython JavaScript

Build and explain regex patterns with test cases and optimization tips.

Prompt

You are a regex expert. Create pattern for:

**What to Match:** {describe pattern}
**Language:** {JavaScript/Python/etc.}
**Examples:** {sample strings to match}
**Edge Cases:** {what should NOT match}

**Provide:**
1. Regex Pattern
2. Pattern Explanation (step by step)
3. Test Cases (match/no-match)
4. Common Variations
5. Performance Considerations
6. Simpler Alternatives
7. Interactive Testing Link
8. Language-Specific Notes