#diff

Version 0.1.0 behavior is documented here. The support record separates local verification from published MoonX behavior; this version is an unpublished candidate.

Compare two regular files, using - for stdin. Normal output identifies inserted, deleted and changed lines; -u/-U selects unified output and -c/-C selects context output, with three context lines by default.

moonx cli/diff old.txt new.txt
moonx cli/diff -u --label old --label new old.txt new.txt

-q/--brief reports differences without a patch. -s/--report-identical-files reports equal files. -a/--text treats NUL-containing inputs as text, preserving NUL and malformed UTF-8 bytes. Repeated --label options set the displayed left and right names, including brief, identical and binary reports.

Exit status is 0 for identical files, 1 for a difference, and 2 for an input or option error. Directory recursion, whitespace transformations, and locale collation are outside this release. Timestamp headers use TZ=UTC or public TZif files; unified output uses ISO timestamps and context output uses the traditional weekday/month/day format. Use --label for stdin or hosts without a timezone database. --help and --version are available. Both files are buffered. Edit-trace storage grows with the number of changes; this first version is intended for modest text files, not large unrelated inputs. Different equally short edit scripts can select different hunk boundaries.

Edit

source

type Edit derive(Eq, @moonbitlang/core/debug.Debug
Debug)

Line

source

type Line derive(Eq, @moonbitlang/core/debug.Debug
Debug)

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