Function matches_pattern 

pub fn matches_pattern(value: &str, pattern: &str) -> bool

Check if a string matches a regex pattern.

This function compiles the regex on each call, which is fine for validation but may not be ideal for hot paths. Consider caching the compiled regex if validating many values.

Examples

use fastapi_core::validation::matches_pattern;

// Simple exact match patterns (no regex features)
assert!(matches_pattern("hello", r"^hello$"));
assert!(!matches_pattern("world", r"^hello$"));
assert!(matches_pattern("anything", "")); // Empty pattern matches all