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Advanced Regex Generator and Explainer
Constructs optimized, secure regular expressions and provides a step-by-step logic breakdown.
Use Case
Use this prompt when parsing complex log files, scraping data, or validating non-trivial input fields.
AI Prompt
Act as a senior software engineer specialized in parsing and regular expressions. Construct a highly optimized regular expression pattern based on these requirements: [insert match criteria and target examples]. Provide a detailed step-by-step breakdown of how the regex works, including lookaheads, lookbehinds, capturing groups, and flags, along with edge cases it handles.
How to Use
- 1Identify the pattern you need to match and write down a few examples of valid and invalid matches.
- 2Insert these examples and match criteria into the prompt.
- 3Run the prompt to obtain the pattern and a comprehensive logical explanation.
Example Output
The regular expression uses a positive lookahead to assert that the string contains at least one special character, followed by a non-capturing group that validates a sequence of alphanumeric characters between eight and sixteen characters long. It ends with a boundary anchor to prevent partial matching. This ensures complete validation of passwords without backtracking vulnerabilities.
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