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Re: [ddlm-group] Space as a list item separator>
- To: Group finalising DDLm and associated dictionaries <ddlm-group@iucr.org>
- Subject: Re: [ddlm-group] Space as a list item separator>
- From: John Westbrook <jwest@pdb-mail.rutgers.edu>
- Date: Tue, 01 Dec 2009 07:27:38 -0500
- In-Reply-To: <alpine.BSF.2.00.0912010556370.27482@epsilon.pair.com>
- Organization: RCSB Protein Data Bank
- References: <C7398588.126B6%nick@csse.uwa.edu.au> <275884.79342.qm@web87006.mail.ird.yahoo.com> <84104.25546.qm@web87002.mail.ird.yahoo.com> <alpine.BSF.2.00.0911300822020.56763@epsilon.pair.com> <alpine.BSF.2.00.0911300835021.56763@epsilon.pair.com> <279aad2a0911301433se2d145fi9ac2df69cd047583@mail.gmail.com> <279aad2a0911302230v15316aadk9d27c252ce04bfc6@mail.gmail.com> <279aad2a0911302252m58914467k7931449848c6c6e6@mail.gmail.com><alpine.BSF.2.00.0912010556370.27482@epsilon.pair.com>
Could I ask for a clarification of the interpretation of a mixed case such as: [1, 2, 3 4 ] or [1,2,3 4] If quote and space are permitted are the above going to satisfy the syntax requiremens? John Herbert J. Bernstein wrote: > First amending the arguments > > To summarise the arguments: > > 1. In favour of both space and comma > - comma is used in some other non-CIF contexts as a list delimiter > - comma allows a large subset of lists and arrays to be carried > opaquely in CIF 1 and CIF 1.1 documents. > > 2. Against comma: > - A single type of separator makes the grammar simpler > - Space is used everywhere else in CIF as a separator (consistency) > - Comma can then be used in non-delimited strings > > Then > > I vote for comma and space -- Herbert > > ===================================================== > 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 > ===================================================== > > On Tue, 1 Dec 2009, James Hester wrote: > >> Dear CIF2 people: the time has come to vote on the list item separator >> issue. Firstly: as far as I know, nobody is against space as a >> separator, >> so spaces will be possible list item separators. Some may be against >> commas, so this vote is on whether or not to allow commas. >> >> To summarise the arguments: >> >> 1. In favour of both space and comma >> - comma is used in some other non-CIF contexts as a list delimiter >> >> 2. Against comma: >> - A single type of separator makes the grammar simpler >> - Space is used everywhere else in CIF as a separator (consistency) >> - Comma can then be used in non-delimited strings >> >> Space only: Nick, James (Nick is here) >> Comma and Space: ? >> >> On Tue, Dec 1, 2009 at 5:30 PM, James Hester <jamesrhester@gmail.com> >> wrote: >> More specifically, CIF1.1 excludes square brackets as the first >> character in a non-delimited string. >> >> >> On Tue, Dec 1, 2009 at 9:33 AM, James Hester <jamesrhester@gmail.com> >> wrote: >> Dear Herbert: as CIF 1.1 doesn't define lists, I'm not >> sure why you suggest that the example below is a valid >> tag. >> >> On Tue, Dec 1, 2009 at 12:36 AM, Herbert J. Bernstein >> <yaya@bernstein-plus-sons.com> wrote: >> Sorry something got lost in the prior message. >> It should have >> read: >> >> Dear Colleagues, >> >> Back to the question of commas. >> If you accept the desirability of >> having a CIF 1.5, commas in lists >> become very useful. Someone with >> a CIF 1.1 editor will be able to >> prepare a CIF 1.5 file for many >> useful cases by doing all lists >> with commas and no embedded blanks >> as long as they can make their >> lists fit on single lines. In CIF >> 1.1 >> >> [[1,2,3],[4,5,6],[7,8,9]] >> >> is a valid value for a tag, but >> >> [[1 2 3] [4 5 6] [7 8 9]] >> >> is not. >> >> >> No, neither example is a valid CIF 1.1 tag. CIF 1.1 explicitly >> excludes brackets as the first character of a non-delimited >> string. >> >> >> Having the option of commas in lists >> will help to smooth the >> transition for at least some people. >> >> >> >> -- >> T +61 (02) 9717 9907 >> F +61 (02) 9717 3145 >> M +61 (04) 0249 4148 >> >> >> >> >> -- >> T +61 (02) 9717 9907 >> F +61 (02) 9717 3145 >> M +61 (04) 0249 4148 >> >> >> >> >> -- >> T +61 (02) 9717 9907 >> F +61 (02) 9717 3145 >> M +61 (04) 0249 4148 >> >> > > ------------------------------------------------------------------------ > > _______________________________________________ > ddlm-group mailing list > ddlm-group@iucr.org > http://scripts.iucr.org/mailman/listinfo/ddlm-group _______________________________________________ ddlm-group mailing list ddlm-group@iucr.org http://scripts.iucr.org/mailman/listinfo/ddlm-group
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- Re: [ddlm-group] Space as a list item separator (Nick Spadaccini)
- Re: [ddlm-group] Space as a list item separator (SIMON WESTRIP)
- Re: [ddlm-group] Space as a list item separator (SIMON WESTRIP)
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- Re: [ddlm-group] Space as a list item separator (James Hester)
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