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Re: [perl #119095] Empty regular expression does not match in some cases

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Aaron Crane
August 5, 2013 19:11
Re: [perl #119095] Empty regular expression does not match in some cases
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Karl Williamson <> wrote:
> On 08/05/2013 12:09 PM, Aaron Crane wrote:
>> So this aspect of Perl can be dated back to code written no later than
>> 1970, for a text editor running on an operating system that I suspect
>> noone subscribed to this list has ever used.
> For the record, I come close.  I used to use the qed text editor on a Bell
> Labs operating system called TSS.  I presume this is related to the CTSS
> menioned.

Thank you!

AFAICT from Googling, CTSS came first, and Bell Labs had both "Nike
TSS" (a copy of CTSS) and the IBM TSS/360 (which apparently isn't
closely related to it).  This piece says that the Nike TSS ran at the
Bell Labs Whippany facility, and TSS/360 at Indian Hill:

It does seem to rely on the participants' memory, though, so perhaps
it isn't entirely accurate.

Aaron Crane **

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