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bug#17156: [PATCH 2/5] Revert conversion to shell scripts

From: Paolo Bonzini
Subject: bug#17156: [PATCH 2/5] Revert conversion to shell scripts
Date: Tue, 01 Apr 2014 17:08:08 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.4.0

Il 01/04/2014 16:54, Paul Eggert ha scritto:
Paolo Bonzini wrote:

Even though egrep and fgrep have been deprecated, most users
will be using them instead of grep -E and -F, on MS Windows systems
too where the native command shell is used.

That's not my experience; more and more, people are using grep -E and
-F.  Regardless, people who lack working shells can switch to grep -E
and -F, which is what they're supposed to have been doing for decades

If you want these backward-compatibility hacks to be executables rather
than shell scripts, please make them separate little programs that
simply do an execlp of 'grep'.  We shouldn't keep going on like we were
doing, with a tricky setup within 'grep' itself that was a maintenance
hassle and had subtle bugs.  We should have separation of concerns: the
'egrep' and 'fgrep' parts should be cleanly separated from the main part
of 'grep'.

Unless I misunderstand, this is clearly not possible since "grep" does have to deal with -E and -F.

If you want to remove the "matcher" concept (including -Xawk), then I very much agree with that.


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