Issues · uutils/grep · GitHub

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POSIX equivalence classes `[[=c=]]` do not match like GNU

good first issue

#35

· sylvestre opened

on Jun 4, 2026

`-P` accepts multiple patterns where GNU allows only one

good first issue

#34

· sylvestre opened

on Jun 4, 2026

GNU start/end-of-buffer anchors are treated as literals instead of anchors

good first issue

#33

· sylvestre opened

on Jun 4, 2026

`-i` matches multi-character sequences via Unicode case folding where GNU matches one

good first issue

#32

· sylvestre opened

on Jun 4, 2026

`\s` and `\S` are not honored in basic-regexp (`-G`) mode like GNU

good first issue

#31

· sylvestre opened

on Jun 4, 2026

wrong exit code for `-o -v` with a zero-width match on an empty line (related to #18)

good first issue

#28

· sylvestre opened

on Jun 2, 2026

does not short-circuit an empty pattern with `-v` like GNU (same family as #4)

good first issue

#27

· sylvestre opened

on Jun 2, 2026

`-l` and `-L` are not mutually exclusive last-wins like GNU

good first issue

#26

· sylvestre opened

on Jun 2, 2026

`.` does not match a newline under `--null-data` like GNU

good first issue

#25

· sylvestre opened

on Jun 2, 2026

emits a spurious `--` context separator between adjacent groups

good first issue

#24

· sylvestre opened

on Jun 2, 2026

rejects a leading quantifier (`?`/`*`/`+`) that GNU accepts with a warning

good first issue

#23

· sylvestre opened

on Jun 2, 2026

handles `-q -c` differently from GNU (prints the count `0` on no match instead of staying silent)

good first issue

#22

· sylvestre opened

on Jun 2, 2026