grep --color=auto with -i option disables the matching text color

Mon Nov 23 17:25:00 GMT 2009

Howdy!
I was trying to enable colors on the matching text for grep, and can't
get the formatting to work with the matching text.
# Partial contents of .zshenv
export GREP_OPTIONS="--color=auto"
export GREP_COLORS='mt=1;34'
# Problem command, no matching text (mt) appearing bold/blue, run in a
C# solution:
$ grep -R -n -i -e "functionFoo\(" --include=*.cs --exclude-dir=Logs *
# Command that works and highlights matching text, note that -i option disabled
$ grep -R -n -e "functionFoo\(" --include=*.cs --exclude-dir=Logs *
My superuser inquiry:
http://superuser.com/questions/73261/grep-colorauto-with-i-option-disables-the-matching-text-color-why
This problem was found with the following program/platform versions:
$ uname -a
CYGWIN_NT-6.0-WOW64 *** 1.5.25(0.156/4/2) 2008年06月12日 19:34 i686 Cygwin
$ grep --version
GNU grep 2.5.3
$ zsh --version
zsh 4.3.9 (i686-pc-cygwin)
Windows Vista Business
Service Pack 2
Feel free to email me with anything that's missing. I'm not sure if
this is a bug with Cygwin on Vista or perhaps grep. I didn't find
much past the man pages on google with respect to grep colorization
(on any platform).
Thanks,
Alan
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