TUHS

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23 participants
6474 discussions

Regular Expressions (was Re: origin of the name 'glob')

by Paul Winalski

On 7/9/17, ron minnich <rminnich(a)gmail.com> wrote: >> > All the DEC-10 and 11 operating systems I used had that wildcard, as well > as IIRC even the PDP-8, maybe someone can confirm the -8. > > It would have been nice had RE's been the standard way to glob files, but, > that said, when I mention .*\.c to people instead of *.c they don't much > like it. So when were REs first designed and implemented? I would imagine that they came about as a way to extend the old '*' and '?' wildcard syntax, but that is only a guess. -Paul W.

7 years, 9 months

Re: [TUHS] Regular Expressions (was Re: origin of the name 'glob')

by jnc＠mercury.lcs.mit.edu

> From: Paul Winalski > So when were REs first designed and implemented? I would imagine that > they came about as a way to extend the old '*' and '?' wildcard syntax, > but that is only a guess. I would suspect in the context of editors, not command file-naming. Don't have time to research it, though. Try checking CTSS, early Multics, etc. Noel

7 years, 9 months

Re: [TUHS] origin of the name 'glob'

by Norman Wilson

Doug McIlroy: One curious fact is that from day one the word hase been pronounced glob, not globe. (By contrast, creat has been variously pronounced cree-at and create.) ===== On the other hand, the UNIX Room pronunciation of `cron' rhymed with bone, not with spawn. Norman Wilson Toronto ON

7 years, 9 months

Re: [TUHS] origin of the name 'glob'

by jnc＠mercury.lcs.mit.edu

> From: Ron Minnich > Why was it called glob? I always wondered. Something about global expressions. I recall reading about this somewhere; I tried looking in the man page: http://minnie.tuhs.org/cgi-bin/utree.pl?file=V1/man/man7/glob.7 but it didn't go into any detail. I don't know where I could have seen it, alas... Noel

7 years, 9 months

origin of the name 'glob'

by ron minnich

Why was it called glob? I always wondered.

7 years, 9 months

DR11-W - anyone need one?

by Arthur Krewat

Probably no one here wants it, but I have a DR11-W UNIBUS board: http://bitsavers.trailing-edge.com/pdf/dec/unibus/DR11W_UsersMan.pdf It's basically a 16-bit DMA interface that can actually do 500Kw per second (woo hoo! 1MB/sec!) to another DR11-W Anyone need it? Want it? Figured I'd try here first, in case we had some historic UNIX people that were still running a UNIBUS PDP-11 (or VAX). No takers in a few weeks, I'll try the museums next. thanks art k.

7 years, 9 months

Re: [TUHS] DR11-W - anyone need one?

by jnc＠mercury.lcs.mit.edu

> From: Toby Thain > Are we to infer that neither Noel and Clem are "good homes"? Well, I said something like 'I don't have an immediate need for it, but I'd be happy to take it', so I guess the question is 'does someone have an actual, immediate use for it' (which I don't)? Noel

7 years, 9 months

Adventure shell / Doug Gwyn

by David

Does anyone here remember the Adventure Shell? Doug wrote it back in 83, and I just stumbled across a copy in an RCS directory. Invoked as ‘ash’ it was pretty clever. I’ve lost the instructions and help files, however I’ve got the main script. Back when people did weird things because it was fun. David

7 years, 10 months

Re: [TUHS] What did cc -2 do?

by Richard Tobin

> Browsing the source for "cc" in v6 and v7, if invoked with -2 would > replace crt0.o with crt2.o. If the -2 were followed by another character > (probably intended to be -20), it would use crt20.o and use -l2 instead > of -lc. > > These options seem to be undocumented, and I can't find any source code > of these libraries or indication as to what the purpose was. The "scc" man page for System V may be enlightening, as it mentions similarly-named files: NAME scc - C compiler for stand-alone programs SYNOPSIS scc [ +[ lib ] ] [ option ] ... [ file ] ... DESCRIPTION Scc prepares the named files for stand-alone execution. [...] FILES /lib/crt2.o execution start-off /usr/lib/lib2.a stand-alone library /usr/lib/lib2A.a +A configuration library /usr/lib/lib2B.a +B configuration library -- Richard -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.

7 years, 10 months

Re: [TUHS] 211bsd: kernel panic after a 'here document' in tcsh

by Walter F.J. Mueller

Hi, two remarks on the issues around FPSIM and tcsh: I of course wondered by a line like mov $4..,r0 is accepted by 'as', I naively expected that this should cause an error. I didn't locate the 211bsd 'as' manual, so checked 7th Edition manuals, which can be found under https://wolfram.schneider.org/bsd/7thEdManVol2/ The assembler manual, see https://wolfram.schneider.org/bsd/7thEdManVol2/assembler/assembler.pdf states 6.1 Expression operators The operators are: (blank) when there is no operand between operands, the effect is exactly the same as if a ‘+’ had appeared. So the lexer sees two tokens $4. --> number . --> symbol for location counter and, because the default operator is '+', interprets this as mov $4. + . , r0 which ends up being a number in the 160000 to 177777 range. So 'as' is not to blame, works as designed. Noel Chippa wrote: > I'm fairly amazed that apparently nobody has run across one of these 4 before! > (Or, at least, not bothered to report it.) > I wonder how long that bug has been in the code? The answer is: this bug was in 211bsd all the time. Steven Schultz told me that that they simply didn't have a way to test FPSIM because all machines had FPP, and the only way of testing would have been to physically remove the FP11 from a 11/70. With best regards, Walter

7 years, 10 months

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