#unexpand

Version 0.1.3 behavior is documented here. The support record separates local verification from published MoonX behavior; moonx examples use registry releases.

Convert eligible spaces to tabs while preserving input bytes and line boundaries:

printf '    text\n' | moonx cli/unexpand
printf 'a    b\n' | moonx cli/unexpand -a

-a/--all converts blanks throughout each line; the default converts only the initial blank sequence. -t/--tabs implies --all. --first-only overrides both explicit -a and the implication from -t, regardless of option order. Existing tabs and isolated spaces retain their column meaning.

Tab lists use positive ascending stops separated by commas, spaces or tabs; repeated -t values accumulate. The default width is 8, and a single stop repeats at its width. Several fixed stops end conversion after their last stop. A final /N extends at absolute multiples of N, while +N extends relative to the last fixed stop: 4,6,/8 continues at 8,16,... and 4,6,+8 at 14,22,... . A standalone /8 or +8 repeats width 8.

Stops use the GNU signed 64-bit range. Nonzero /N and +N suffixes are exclusive and may not be repeated. GNU 9.11 accepts trailing /0 or +0 as no extension, so 4,/0 and 4,+0 repeat width 4. Invalid lists fail before input is read. Backspace decrements a positive column; carriage return is an ordinary byte and does not reset it.

With no file operand, or with -, input is read from standard input. Multiple files are processed in order. Locale-dependent display widths are outside this byte-oriented profile.

#Standalone metadata

Standalone --version prints exactly unexpand 0.1.3 followed by one newline. Standalone --help starts with Usage: unexpand, lists both metadata options, and ends with a newline. Both write to stdout, leave stdin unread, and exit with status 0. Exact-version publication and verification remain recorded separately in the support record.

Source Files

main.mbt

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