URL:
<http://savannah.gnu.org/bugs/?25063>
Summary: grep --color clears line when CR matches (because
of \33[K Erase Line string)
Project: grep
Submitted by: None
Submitted on: Wed 10 Dec 2008 03:19:12 PM UTC
Category: None
Severity: 3 - Normal
Item Group: None
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
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Details:
"""
$ echo -en 'foo\r\n' | grep --color=auto 'foo'
foo
$ echo -en 'foo\r\n' | grep --color=auto 'foo.'
$ echo -en 'foo\r\n' | grep 'foo.'
foo
"""
Because grep uses the \33[K Erase Line string to end a colored match, it will
clear the entire line when a legitimate carriage return (CR) matches in a file
with DOS line-endings.
This is not just a theoretical issue. When searching for things at EOL I
can't use 'foo$' for DOS-files, so I need to use 'foo[[:blank:]]*$' and that's
the one that breaks.
I'm not sure what the best/quickest fix here is, but I'd scrap the """There
are no additional disadvantages specific to doing it after SGR END."""-comment
from the grep.c file ;-)
Greetings,
Walter Doekes
OSSO B.V.
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