Module strict 

Strict moreutils-compat mode entry point.

Mirrors the rusty-sponge/rusty-vipe strict.rs pattern: bypasses clap entirely (clap can’t produce byte-equal moreutils errors), runs a hand-rolled argv scan, emits moreutils-style stderr per FR-013 + FR-018.

STF-003 option A

For any unknown flag, we emit ONLY the first unknown-flag error and exit non-zero. moreutils’ Perl Getopt::Long iterates per-character; we accept that as documented divergence (Strict-mode “moreutils-style” rather than “moreutils-byte-equal” — see FR-013 note).

Recognized inputs (Strict mode)

input	behavior
--	end-of-options; rest are positional commands
--strict / --no-strict	consumed by mode resolution upstream; ignored
--capture	rejected per FR-013/FR-018 (Rusty extension)
--help / --version	rejected per FR-013
completions	rejected per FR-013
other -x / --foo	first-error formatter (STF-003 option A)
positionals	command strings, spawned via platform shell

Enums

UnknownFlag

The first unknown flag encountered by the Strict-mode parser.

Functions

format_spawn_failure

Moreutils byte-equal spawn-failure formatter per FR-009 + HINT-004.

format_unknown_flag

First-error-only formatter for unknown flags per FR-013.

pre_scan_strict_flag

Pre-clap scan for --strict / --no-strict flags. Last occurrence wins.

run

Strict-mode entry point. Bypasses clap entirely.