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Re: Portability issue
From: |
Paul Eggert |
Subject: |
Re: Portability issue |
Date: |
Sat, 07 Aug 2004 20:50:35 -0700 |
User-agent: |
Gnus/5.1006 (Gnus v5.10.6) Emacs/21.3 (gnu/linux) |
DervishD <address@hidden> writes:
> I would like to know (if you have such information, of course) which
> 'expr's out there support 'substr' expressions in addition to the
> GNU coreutils one, of course.
Sorry, haven't a clue. But you shouldn't need substr: you can always
get the equivalent by using pattern matching. E.g., instead of this:
expr substr "X$string" 3 5
you use this:
expr "X$string" : 'X.\(.....\)'