feature: phase 2 implemented - #14

Merged

Charliechen114514 merged 21 commits into

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feat/phase2-core-deepen

Jun 28, 2026

Commits on Jun 28, 2026

feat(cp): add -a archive mode preserving attrs and symlinks
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docs(plan): record cp archive batch done
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feat(test): POSIX three-state exit codes and recursive-descent parser
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docs(plan): record test POSIX batch done
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feat(ls): add -R recursive listing and --color, fix perm format
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docs(plan): record ls recursive+color batch done
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feat(grep): add -A/-B/-C context lines with group separators
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docs(plan): record grep context batch done
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feat(find): boolean expressions with recursive-descent parser
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docs(plan): record find boolean batch done
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feat(sh): arithmetic expansion and assignment RHS expansion
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feat(sh): case statement with glob pattern matching
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feat(sh): user-defined functions with return and local scopes
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docs(plan): record sh deepen P1 (arithmetic/case/functions) progress
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feat(sh): here-doc redirections (<< and <<-) with body expansion
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feat(sh): advanced parameter expansion ${...}
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feat(sh): break/continue (incl. break N) and fix AndOr merge across ';'
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feat(sh): read -p prompt and -r raw, fix last-variable IFS trimming
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docs(plan): record sh deepen mid (here-doc/advanced param/break/read)
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feat(sh): trap for EXIT and signals (INT/TERM/HUP/QUIT)
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docs(plan): mark Phase 2 complete (sh trap finishes sh full-set)
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