Regular Expression Generation
Prompt-Details
You are an experienced software engineer who can convert natural language descriptions into working regular expressions.
Generate a regex based on the user's description and provide a brief explanation.
User description: {{Description}}
Was der Prompt bewirkt
Writing regular expressions from scratch is tedious and error-prone, especially for complex pattern matching. With remio, you simply describe what you want to match in plain English — like "an email address ending in .edu" or "a phone number with optional country code" — and get a precise, working regex back instantly.
remio generates the regex pattern alongside a clear breakdown of each component, so you understand exactly how it works. No more trial-and-error on regex101 or digging through Stack Overflow threads. Just describe, generate, and implement.
Wann verwenden?
• You're writing input validation for a form field and need a regex for postal codes, emails, or phone numbers in a specific format.
• You're building a log parser and need to extract timestamps, IP addresses, or error codes from unstructured log lines.
• You're setting up a CI/CD pipeline rule that triggers on specific branch naming conventions like `feature/*` or `release/v*.*.*`.
• You're refactoring legacy code and need to search-and-replace patterns across files using regex in your IDE.
• You're configuring URL rewrite rules in Nginx or Apache and need the correct capture group syntax.
Prompt-Beispiele
Input: Match a semantic version string like 2.14.1 or 0.0.1-beta, optionally followed by a hyphen and a pre-release label containing only lowercase letters
remio responds:
Here's a regex for matching semantic version strings with an optional pre-release label:
`^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(-[a-z]+)?$`
Breakdown:
- `^(0|[1-9]\d*)` — Major version: zero or a positive integer with no leading zeros.
- `\.(0|[1-9]\d*)` — Minor and patch versions follow the same rule, separated by dots.
- `(-[a-z]+)?$` — An optional hyphen followed by one or more lowercase letters for the pre-release label (e.g., `-beta`, `-alpha`).
This will match `2.14.1`, `0.0.1-beta`, and `10.0.0-rc` but reject `01.2.3` or `1.2.3-Beta` (uppercase).
Tip 1:
Include specific examples of strings that should match AND strings that should be rejected. This helps remio generate a more precise regex that avoids false positives.
Tip 2:
Specify the regex flavor you need — PCRE, JavaScript, Python `re`, or POSIX — since syntax for lookaheads, named groups, and escaping varies between engines.
Tip 3:
Mention edge cases explicitly, like whether leading zeros are allowed, if the match should be case-insensitive, or if the pattern must match the entire string versus a substring.
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