Module regex_cache 

Regex compilation caching for query performance

Provides thread-safe LRU cache for compiled regex patterns to avoid redundant compilation during predicate evaluation (P2-1).

Supports both standard regexes and lookaround patterns (P2-10):

• Standard patterns use regex::Regex for performance
• Lookaround patterns ((?=, (?!, (?<=, (?<!) use fancy_regex::Regex

Structs

RegexCache

Thread-safe LRU cache for compiled regexes

Enums

CompiledRegex

Compiled regex that supports both standard and lookaround patterns

RegexCompileError

Error type for regex compilation that handles both standard and fancy regex errors

Functions

get_or_compile_regex

Public API: get or compile a regex