[bug #16225] grep -wF bug with multiple patterns

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?func=detailitem&item_id=16225>

                 Summary: grep -wF bug with multiple patterns
                 Project: grep
            Submitted by: None
            Submitted on: Thu 03/30/06 at 07:42
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open

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Details:

Hi,

checkout the commands below, containing 5 calls into grep. In my environment
("grep (GNU grep) 2.5.1") the two calls have wrong results:

# Begin of shell commands
echo '12
45
456 no word match for _45_
12
45' > in.txt
echo '12
45' > patterns.txt
# 1) Works, emitting 12 45 12 45:
grep -wE '(12)|(45)' in.txt
# 2) Works, emitting 12 45 12 45:
grep -w '12
45' in.txt
# 3) Fails, emitting only 12 45:
grep -wF '12
45' in.txt
# 4) Works, emitting 12 45 12 45:
grep -wf patterns.txt in.txt
# 5) Fails, emitting only 12 45:
grep -wFf patterns.txt in.txt
# End of shell commands

AFICS, the symptom is that after the 1st non-word-match ("456") it stops
matching other correct word-matches.


Regards,
Markus Mauhart.







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