M. Edward (Ed) Borasky wrote:
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> Michael W. Ryder wrote:
>>> The first time I used them was in a mainframe editor that used a
>>> superset of them.  You could go to the beginning of a file, skip 20
>>> occurrences of a pattern, change the next 50 occurrences of a different
>>> pattern, etc.  This was a major improvement when you had to edit a
>>> 10,000 line file on a mechanical tty.  In today's multi-core, multi-GHz
>>> personal computers something like this would not be too noticeable time
>>> wise, but on a 60 cps tty the ability to do something like this was a
>>> huge time saver.
> 
> I remember something like this in the text editors on Xerox CP-V and
> earlier systems, but I don't think they pre-date Unix.

I was using UCEDIT (University of Calgagy EDIT) on a CDC Cyber mainframe 
in the late 1970's.  I don't remember when the program was actually 
created as I recently lost the documentation for the program.


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