nx_hex.nx

nx_hex.nx -- hex + binary + byte dump helpers. Every enterprise toolchain has a `hexdump` equivalent: raw byte regions rendered in a stable human-readable format for debugging memory state. This module provides three formats: nx_hex_i64 i64 as 16-char hex (no prefix, no pad-space) nx_hex_bytes byte array as `hh hh hh ...` nx_hex_dump full hexdump-C-style: offset + 16 hex + ASCII All write to stderr (fd 2) by default to avoid collision with program stdout. Deterministic output -- no timestamps, no tool-version headers. F6-compatible. Enterprise grade means: * fixed-width columns (sortable, greppable) * ASCII fallback for unprintable bytes (prints '.') * explicit region length (no overruns on short buffers) * offset prefix shows 8-digit hex (up to 4 GB regions) * no dependency on the filesystem -- pure fd write Paired with nx_log (levels + tags) and nx_metrics (counters), nx_hex closes the "what do I see when I'm lost" gap. Every diagnostic should use ONE of: tagged log, numeric metric, or hex dump. Nothing else.