nx_glob.nx

nx_glob.nx -- POSIX-style glob pattern matching. Used by toolchain CLI wrappers that take "*.nx", "tests/*.s", "runtime/nx_dwarf_*.nx" arguments. Today each tool that wants glob support either calls out to a shell or implements its own matcher. This module provides a single canonical matcher. Supported syntax (POSIX subset): * match zero or more chars (NEVER crosses '/') ? match exactly one char [abc] character class [a-z] character range [^abc] negated class \\x literal escape Out of scope: ** (recursive wildcard) {a,b,c} brace expansion ~ home-dir expansion Matcher is recursive (textbook NFA-style); for the pattern lengths real CLIs use (< 100 chars) the depth is fine.