Bug 156105

Summary: grep -Fw matches non-word
Product: [Fedora] Fedora Reporter: Gordon Lack <gml4410>
Component: grepAssignee: Tim Waugh <twaugh>
Status: CLOSED RAWHIDE QA Contact: Mike McLean <mikem>
Severity: medium Docs Contact:
Priority: medium    
Version: 3   
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OS: Linux   
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Last Closed: 2005-04-27 16:59:33 UTC Type: ---
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Description Gordon Lack 2005-04-27 16:26:07 UTC 
Description of problem:

  grep -Fw may find an incorrect match

Version-Release number of selected component (if applicable):

  grep-2.5.1-31

How reproducible:

   Every time.


Steps to Reproduce:
   Run grep -fW with 2 words to match, one which matches the end of a word and
the other teh start of the same word. But neither matches a whole word (well,
that seems to be the requirement).
  
Actual results:

   grep reports a match:


Expected results:

   grep should not report a match


Additional info:
   A specific example for grep built from the source rpm, with all patches applied.

my-system*[1] echo "LIN7C 55327" | ../grep-2.5.1a/src/grep -wF -e 5327 -e 5532 
LIN7C 55327


   This is grep-specific rather than FC3-specific.  Compiling the same code on
an Irix system produces the same error.
Comment 1 Tim Waugh 2005-04-27 16:59:33 UTC 
Confirmed with 2.5.1-31.4.

This works fine in 2.5.1-48 from rawhide (Fedora Core development).