Re: [COFF] Editor Scripts

What I used editor scripts for before utilities like sed came along was primarily in what would now be called refactoring. A common pattern for me was fo have a function foo that  took two arguments and I wanted to add another argument. Recall in those days that the arguments to a function had no type information   foo( x, y ) would be followed by int x in the body of the function. Also, htere were no function prototypes.   So a very common error (and a major motivation for writing Lint) was finding functions that were called inconsistently across the program.  If I wanted to add an argument to foo, the first thing I would do is run an editor script, something like     1,$s/foo/old_foo/g      w      q and apply it to all my source and header files.   Then I'd verify that the resulting files compiled and ran. Then I would take the definition of foo (now called old_foo), and change it to its new form, with the extra arguments, and rename it to foo.   Then I would grep my source files for old_foo and change the calls as needed.   Compiling would find any that I missed, so I could fix them. Sounds like a lot of work, but if you did it nearly every day it went smoothly. ed lent itself to scripts.  It was all ascii and line oriented.   With glass teletypes came editors like vi.  Suddenly, a major fraction of the letters typed were involved in moving a cursor alone.  Also, vi wasn't as good at doing regular expressions as ed, especially when lines were being joined   (this was later fixed).  So editor scripts went from daily  usage to something that felt increasingly alien.   The fact that you ccould see the code being changed was good, but find the lines to change across a couple of dozen files was much more time consuming... Steve PS:  There are IDEs that make quickly finding the definitions of a function from its uses, or vice versa, much easier now.  But I think it falls short of being an abstraction mechanism the way editor scripts were...  In particular, you can't put such mouse clicks into a file and run them on a bunch of tiles... ----- Original Message ----- From: "Grant Taylor" &lt;gtaylor(a)tnetconsulting.net&gt; To:<coff@minnie.tuhs.org> Cc: Sent:Fri, 6 Jul 2018 10:10:24 -0600 Subject:Re: [COFF] Other OSes? On 07/05/2018 10:04 PM, Greg 'groggy' Lehey wrote: times The impression that I got while reading your description made me think of distributed systems that use message bus(es) to communicate between applications on different distributed systems. Or at least the same distributed IPC idea, just between parts of a single system, no (what is typically TCP/IP over Ethernet) network between them. Does that even come close? Or have I completely missed the boat? -- Grant. . . . unix || die