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Re: [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding. .
- To: Group finalising DDLm and associated dictionaries <ddlm-group@iucr.org>
- Subject: Re: [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding. .
- From: "Herbert J. Bernstein" <yaya@bernstein-plus-sons.com>
- Date: Mon, 28 Feb 2011 13:58:19 -0500
- In-Reply-To: <8F77913624F7524AACD2A92EAF3BFA54168ECD35C3@SJMEMXMBS11.stjude.sjcrh.local>
- References: <AANLkTi=bEDjCpJgyuB07q1FBFZjA_jbG=4jgLsXEvw4g@mail.gmail.com><AANLkTimXzT1UDfmPAqpSStGiAzhtneCmtfRHbSD4B1D4@mail.gmail.com><201102250451.p1P4pJG4022500@cci.lbl.gov><AANLkTim51YEQDeZ7yN7RSkySgo1NiUhRm4YuJBv8nxpc@mail.gmail.com><a06240812c990a841ef34@192.168.2.101><AANLkTinH2BQzEjj9L9sjsci1c=RrZqk3O0wtfnDGg+6e@mail.gmail.com><alpine.BSF.2.00.1102280731330.93349@epsilon.pair.com><AANLkTimeuGsbsPUHRkuk7Bw7yn66JD1eQ0aAYLMiSoED@mail.gmail.com><alpine.BSF.2.00.1102280834120.93349@epsilon.pair.com><20110228151159.GB18749@emerald.iucr.org><902266.15167.qm@web87003.mail.ird.yahoo.com><8F77913624F7524AACD2A92EAF3BFA54168ECD35C3@SJMEMXMBS11.stjude.sjcrh.local>
Dear Colleagues, While John B. is right about what you _can_ do in writing for proposals F and GP, remember that F and GP include the \\ elide, which would then allow sensible users to safely double _all_ backslashes that they want carried through unchanged. These people will have a lot less trouble in managing their strings than people who try to work on the sharp boundary of a protocol that well may change as CIF2 and DDLm shake down in real use. The ability to do this in CIF writers, making for very robust data, is a strong reason to favor P, P-prime, F and GP, over F' or G. Regards, Herbert At 12:15 PM -0600 2/28/11, Bollinger, John C wrote: >On Monday, February 28, 2011 10:31 AM, SIMON WESTRIP wrote: > >>As I understand F or F', doubling of backslashes would only really >>be required >>when a literal backslash is needed at the end of a line, because, >>as in python, >>all unrecognized escape sequences are returned 'as is', e.g. >> ``\a\b\c\ \'\"`` will be returned as \a\b\c\ \'\" ? > >F' and G would require backslash doubling only when a literal >backslash appears at the end of a line. If a line ends with >multiple literal backslashes, then only the last one would or should >be doubled. > >F and GP would require backslash doubling when a literal backslash >appears at the end of a line, and also when a literal >double-backslash appears anywhere (in which case both backslashes >would need to be doubled, \\ -> \\\\). Other backslashes could be >doubled for consistency, but that would be optional. > >These proposals all provide for syntax-level line folding and for >including arbitrary text. So also do P, P', and Q. > > >John > >>________________________________________ >>From: Brian McMahon <bm@iucr.org> >>To: Group finalising DDLm and associated dictionaries <ddlm-group@iucr.org> >>Sent: Monday, 28 February, 2011 15:11:59 >>Subject: Re: [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding >> >>I'm still working through my backlog of work and haven't time yet to >>consider this in detail, but the converstaion has caught my attention: >>this approach seems to offer us a solution with line-folding and the >>ability to include arbitrary text. Is that right? If so, persistent >>doubling of the backslash in cases such as TeX I would consider a >>minor nuisance compared with the overall gain in functionality. >> >>Regards >>Brian > > >Email Disclaimer: www.stjude.org/emaildisclaimer >_______________________________________________ >ddlm-group mailing list >ddlm-group@iucr.org >http://scripts.iucr.org/mailman/listinfo/ddlm-group -- ===================================================== Herbert J. Bernstein, Professor of Computer Science Dowling College, Kramer Science Center, KSC 121 Idle Hour Blvd, Oakdale, NY, 11769 +1-631-244-3035 yaya@dowling.edu ===================================================== _______________________________________________ ddlm-group mailing list ddlm-group@iucr.org http://scripts.iucr.org/mailman/listinfo/ddlm-group
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- References:
- [ddlm-group] Searching for a compromise on eliding (James Hester)
- [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding (James Hester)
- Re: [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding (James Hester)
- Re: [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding (Herbert J. Bernstein)
- Re: [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding (James Hester)
- Re: [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding (Herbert J. Bernstein)
- Re: [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding (Brian McMahon)
- Re: [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding (SIMON WESTRIP)
- Re: [ddlm-group] Fwd: Fwd: Searching for a compromise on eliding. . (Bollinger, John C)
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