Path: utzoo!utgpu!jarvis.csri.toronto.edu!clyde.concordia.ca!uunet!wuarchive!cs.utexas.edu!sun-barr!ames!pacbell!acsdev!glass From: glass@acsdev.acsdev.uucp (Adam Glass) Newsgroups: gnu.emacs.gnus Subject: gnus bug? Message-ID: Date: 6 Dec 89 12:43:15 GMT Sender: glass@acsdev.UUCP Distribution: gnu Lines: 60 Enviornment: AT&T 3b2 1000/60, Emacs 18.55, local news spool (not remotely mounted),B news 2.11.17 version: GNUS 3.11 Behavior: some newsgroups seem to go bad. Gnus says there are messages in the group. The message is actually there too. When you hit '=' to get a list of messages or just try to read the first one you get the following message in the minibuffer: Retrieving Newsgroup: comp.compilers Symbol's Value as variable is void: From: Here is the one message in a newsgroup with this problem: Path: acsdev!pacbell!ames!mailrus!tut.cis.ohio-state.edu!snorkelwacker!spdcc!ima!esegue!compilers-sender From: parke@star.enet.dec.com Newsgroups: comp.compilers Subject: Re: Info about generators of LR(k) parsers (Specifically S/SL) Keywords: LR(k) parsing, parser generator, yacc Message-ID: <1989Nov30.042240.20477@esegue.segue.boston.ma.us> Date: 30 Nov 89 04:22:40 GMT References: <727@theseas> Sender: compilers-sender@esegue.segue.boston.ma.us Reply-To: parke@star.enet.dec.com Organization: Digital Equipment Corp. Lines: 20 Approved: compilers@esegue.segue.boston.ma.us In article <727@theseas>, illusion@theseas (Charalambos N. ATHANASSIOU) writes: > Some time ago there was a posting about an LR(k) parser > generator named S/SL. Does anyone have more information about this or > a similar thing (especially e-mail addresses). As far as I know S/SL is stands for SYNTAX and SEMANTICS Language and was developed as a language for implementing compilers from Syntax Graphs, ala the PASCAL report. It was developed (I believe) at CSRG at the University of Toronto and there are several reports written about it and a Pascal compiler implemented with it. There was an article published in one of the ACM publications (I think SIGPLAN) 6 or so years ago also. Bill -- Send compilers articles to compilers@esegue.segue.boston.ma.us {spdcc | ima | lotus}!esegue. Meta-mail to compilers-request@esegue. Please send responses to the author of the message, not the poster. -------- end included message if you have any other questions, mail me or post. later, ag -- Adam Glass UUCP: {sun|ames}!pacbell!acsdev!glass ACS Network Systems Internet: glass@ocf.berkeley.edu System Administrator "Reality is perception. Perception is reality"