/[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}/gi
/https?:\/\/[\w\-._~:/?#[\]@!$&'()*+,;%=]+/gi
/\+?[\d\s\-().]{10,}/g
/\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\b/g
/([0-9a-fA-F]{1,4}:){7}[0-9a-fA-F]{1,4}/gi
/\d{4}[-/]\d{2}[-/]\d{2}/g
/\d{2}:\d{2}(:\d{2})?/g
/#([A-Fa-f0-9]{6}|[A-Fa-f0-9]{3})\b/gi
/\b(?:\d{4}[- ]?){3}\d{4}\b/g
/<[^>]+>/g
/[a-zA-Z0-9_]{3,16}/g
/(?=.*[a-z])(?=.*[A-Z])(?=.*\d)[a-zA-Z\d]{8,}/
Validate email format with pattern matching
/^[\w.-]+@[\w.-]+\.[a-z]{2,}/i
Match various phone number formats
/\+?\d{1,3}[-.\s]?\(?\d{3}\)?[-.\s]?\d{3}[-.\s]?\d{4}/
Find URLs in text content
/https?:\/\/[\w.-]+(?:\.[a-z]{2,}')(?:\/[\w.-]*)*\/?/gi
Check for minimum requirements
/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d).{8,}/'