Start an mdBook under docs/, laid out as in coreutils, and move the list of
extensions and incompatibilities out of the README into it. The README keeps
a pointer.
A Documentation workflow builds the book with mdbook 0.5.0, the version the
uutils website uses, whenever docs/ changes, and uploads it as an artifact.
mdbook 0.5 rejects the `multilingual` field coreutils still carries (the
website strips it before building), so the book leaves it out.
The R command reads one line at a time from a named file. All R commands
naming the same file share a single cursor so they read successive lines,
matching GNU sed. Rejected under --sandbox like the other file commands.
Includes unit and integration tests. Makes the GNU sed testsuite `cmd-R`
test pass.
Adjust `l` command to list Unicode characters by default as
octal byte sequences of the corresponding UTF-8 bytes.
A new -U --uutil-extensions option allows listing them
with the common Unicode \u and \U hex escapes.
Point cargo-binstall at the archives published by dist in the GitHub
releases, so 'cargo binstall sed' fetches a prebuilt binary instead of
building from source.
The original Rust implementation assummed a UTF-8 environment, as is
common in modern systems. This commit improves GNU sed compatibility
by changing most processing to run on bytes rather than Rust's Unicode
characters and strings. This change also improves the handling of binary
files. The commit adds a simple POSIX-compatible locale configuration
to support UTF-8 processing when specified. While at it, also fix
script-specified file handling to take place through OsString and
add a few missing unit tests.
The change fixes two failing GNU test suite cases.
The multiline matching resulted in a large performance regression due to
the indiscriminate use of the dotall (?s) flag. Change the regex
selection process to use only the flag when probably needed.
The previous harness tried to extract sed commands from GNU test scripts
via regex pattern matching, which produced false negatives (comparing
against empty expected output) and false positives. This led to inflated
test counts and unreliable pass/fail signals.
The new approach:
- Provides a lightweight shim for the gnulib test framework (init.sh)
with implementations of compare_, returns_, skip_, framework_failure_,
and all require_* functions
- Executes each .sh test script from the GNU testsuite directly,
injecting our Rust sed binary via PATH
- Uses a clean srcdir with symlinks to real test data files
- Adds per-test timeout (10s) to catch infinite loops, with SIGTERM
isolation so timeout signals don't kill the parent script
- Properly propagates exit codes (0=pass, 77=skip, 99=framework failure)
Results are now consistent with CI tracking (~12% pass rate) with
clear PASS/FAIL/SKIP/timeout categorization.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Sylvestre Ledru
Jorge Polanco
Diomidis Spinellis
LoukasPap
Kevin BurkeandClaude Opus 4.6
oech3