util Directory Reference

Files
	aspect_ratio.c
	📐 Terminal cell aspect ratio calculations for accurate image dimension scaling
	display.c
	Display width and centering utilities implementation.
	env.c
	Environment variable utilities with stack-based prompt responses.
	format.c
	📊 Byte size formatting utilities for human-readable output (B, KB, MB, GB, TB)
	fps.c
	⏱️ FPS tracking utility implementation (nanosecond-precision)
	image.c
	🖼️ Safe overflow-checked buffer size calculations for images and video frames
	ip.c
	🌍 IPv4/IPv6 address parsing, validation, and formatting utilities
	parsing.c
	🔍 Safe string parsing utilities for integers, sizes, and protocol messages
	password.c
	🔑 Password prompting utilities with secure input and formatting
	path.c
	Cross-platform path manipulation with normalization and Windows/Unix separator handling.
	pcre2.c
	Centralized PCRE2 singleton pattern for efficient regex compilation.
	string.c
	🔤 String manipulation utilities: ASCII escaping, trimming, case conversion, and formatting
	time.c
	⏱️ High-precision timing utilities implementation
	url.c
	Production-grade URL parsing and validation using PCRE2.
	utf8.c
	🔤 UTF-8 encoding and decoding with multi-byte character support