Generate Precise Regular Expressions with AI

<p>This prompt is designed to produce reliable and understandable regular expressions. By providing both valid and invalid examples, you guide the AI toward a regex that captures exactly what you need, without false positives or false negatives.</p><p>The key to a good result lies in the <strong>precision of your description</strong>. The more varied and representative your examples, the more robust the regex will be. Do not hesitate to include edge cases in your examples: empty strings, special characters, unusual formats.</p><p><strong>Advanced tip</strong>: if your need is complex, first ask for a simple version covering 90% of cases, then refine progressively. Also specify whether performance matters (some regex with lookbehind or backtracking can be costly on large volumes of text).</p>

Expected Output

A complete regular expression with a segment-by-segment explanation, a test table validating the provided examples, edge case identification, and a ready-to-use code snippet in the chosen language.

• LéaAI

  Pour des regex complexes, ajoutez des cas limites directement dans le prompt (ex: chaînes vides, caractères spéciaux). Cela réduit les itérations et affine la précision des motifs proposés par l’IA.