Problem with grep -Fwf (version 2.5.1a-1 and 2.5.1a-2)
Using the following files both of which had dos2unix run on them to be sure there were no line-ending issues: = data.txt === abc defghi == = filter.txt = abc deghi == These commands work as expected: $ fgrep -f filter.txt data.txt $ tail -1 data.txt | fgrep -wf filter.txt But this command fails to return ghi: $ fgrep -wf filter.txt data.txt So it seems that after a match is discarded because it is not a full word (due to the -w flag), subsequent full word matches are also discarded. I've tested this with the grep 2.5.1 installed on a recent Gentoo GNU/Linux machine and it behaves properly so I am guessing it might be a problem specific to the cygwin port. I have not worked with Cygwin source yet, so I'm reporting the problem, and if I finish with the work tasks that surfaced the problem, I'll be happy to dig into the source and attempt to create a patch, but I'm hoping there might be someone out there that can quickly determine the problem and solution. :) -- Daniel Einspanjer -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: Problem with grep -Fwf (version 2.5.1a-1 and 2.5.1a-2)
I'm sorry, the message appeared to be formatted properly when I posted it but something must have happened during transmission. Each file should have three lines. the data file has abc, def, and ghi. The filter file has abc, de, and ghi. The de line is significant to test the -w whole word matching flag. I appreciate your looking at this and I'm sorry for the confusion. Could you try it again with the files the way I just described and see if you might be able to reproduce the problem? = data.txt = abc def ghi == = filter.txt = abc de ghi == Daniel Christopher Faylor [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] On Fri, Jul 28, 2006 at 01:53:32PM -0400, Daniel Einspanjer wrote: Using the following files both of which had dos2unix run on them to be sure there were no line-ending issues: = data.txt === abc defghi ^ == = filter.txt = abc deghi == These commands work as expected: $ fgrep -f filter.txt data.txt $ tail -1 data.txt | fgrep -wf filter.txt But this command fails to return ghi: $ fgrep -wf filter.txt data.txt So it seems that after a match is discarded because it is not a full word (due to the -w flag), subsequent full word matches are also discarded. Maybe it's a typo in your simplified test case but fgrep -w shouldn't match defghi since the input is deghi. I've tested this with the grep 2.5.1 installed on a recent Gentoo GNU/Linux machine and it behaves properly so I am guessing it might be a problem specific to the cygwin port. I tried this test on Cygwin, Gentoo, and FC5 and got consistent results on all. If I remove the 'f' in defghi from data.txt then it also works consistently on all three systems, i.e., it returns: abc deghi cgf -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: Problem with grep -Fwf (version 2.5.1a-1 and 2.5.1a-2)
Christopher Faylor [EMAIL PROTECTED] wrote in message news:[EMAIL PROTECTED] Yes, I can reproduce it now and see that it goes away if I update the grep sources with patches from the FC5 release. I'll release a new version of grep this weekend. I wonder why every test case I tried worked. I didn't think I had the standard developer's blind spot for grep. cgf Meh! it seems that programs always have n + 1 edges so this is just another edge case. I appreciate your persistence after my initial reporting goof and I'm glad to hear that a fix was easy to track down. Thanks! Daniel -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Problem building setup.exe (zlib.h not found)
I'm trying to build setup.exe from source. I ran into the same problem mentioned by a thread back in 2003 where using a windows cvs.exe instead of the cygwin one caused configure to fail, and I made it past that, but now make is failing because it can't find zlib.h. This is the first cygwin based build I've ever tried before. All my other building has been msvc based. I took all my msvc stuff out of the environment, but I'm not sure how to go about trying to troubleshoot why g++ can't find zlib.h (obviously, I double checked to make sure the zlib package is installed). Could someone give me some pointers here?
Re: Problem building setup.exe (zlib.h not found)
Exactly what I needed to know. Thanks muchly. :) On 4/17/05, Brian Dessent [EMAIL PROTECTED] wrote: Daniel Einspanjer wrote: troubleshoot why g++ can't find zlib.h (obviously, I double checked to make sure the zlib package is installed). setup is a mingw program, you need mingw-zlib and mingw-bzip2. (the source for these libraries used to be bundled, but if you're using a recent CVS checkout it now uses the system provided libraries from those packages.) Brian
Re: Problem building setup.exe (zlib.h not found)
Max, sorry for not RTFMing closely enough. I knew I had bz2 and zlib libraries installed so I didn't click on the mingw prefix until Brian highlighted it. On 4/17/05, Daniel Einspanjer [EMAIL PROTECTED] wrote: Exactly what I needed to know. Thanks muchly. :) On 4/17/05, Brian Dessent [EMAIL PROTECTED] wrote: Daniel Einspanjer wrote: troubleshoot why g++ can't find zlib.h (obviously, I double checked to make sure the zlib package is installed). setup is a mingw program, you need mingw-zlib and mingw-bzip2. (the source for these libraries used to be bundled, but if you're using a recent CVS checkout it now uses the system provided libraries from those packages.) Brian
