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Re: [Bug-ed] [patch] proposal: adding '^' address

From: Antonio Diaz Diaz
Subject: Re: [Bug-ed] [patch] proposal: adding '^' address
Date: Tue, 01 Dec 2015 17:03:55 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv: Gecko/20070601 SeaMonkey/1.1.2

Hi Juan,

Juan Lasca wrote:
As suggested by Tim Chase, it seems like a good idea to add the '^' address
to GNU ed, to improve compatibility with other implementations.

Well, accepting the '^' character as an address is not required by POSIX[1].

[1] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/ed.html

Also, there are many incompatibilities among ed implementations, as stated in the 'rationale' section of the link above.

So I wonder what is the use of complicating the code, the testsuite and the documentation just to improve compatibility with other implementations on this, as your patch defines it, "historical and obscure feature of ed"?

Best regards,

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