Article View: comp.text.sgml
Article #591Re: Precedence of SGML Operators?
From: C. M. Sperberg-McQueen
Date: Tue, 05 Jan 1993 20:20
Date: Tue, 05 Jan 1993 20:20
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Erik Naggum writes: > ... which in a different language could have > been explained by some arcane precedence rules at work; however, SGML > has no notion of operators or of operator precedence rules as these > terms are used in programming languages. I think EN strains things a bit here, with potentially misleading results. SGML indeed has 'no notion of [...] operator precedence' but this does not mean Holger Rath's query was ill-formed! The fact that SGML expresses its operator precedence rules in its formal grammar rather than in separate rules (as for example yacc does) does not mean SGML has no operator precedence, only that its operator precedence rules are implicit. The analyses posted already seem to me to hit the case: looks like a bug in Mark-It. By the bye: EN's remarks might lead one to believe that other SGML parsers don't have bugs; that would be a wrong conclusion. Certainly most of the ones I've used have a problem here or there. -C. M. Sperberg-McQueen ACH / ACL / ALLC Text Encoding Initiative University of Illinois at Chicago
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Path: arc1-ca.pugleaf.net!sparky!uunet!olivea!charnel!rat!usc!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!uicvm.uic.edu!u35395 From: U35395@uicvm.uic.edu (C. M. Sperberg-McQueen) Newsgroups: comp.text.sgml Subject: Re: Precedence of SGML Operators? Message-ID: <93005.142005U35395@uicvm.uic.edu> Date: 5 Jan 93 20:20:04 GMT References: <1802@igd.fhg.de> <19921228.013@erik.naggum.no> Organization: University of Illinois at Chicago Lines: 24