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Re: [ddlm-group] Space as a list item separator>
- To: Group finalising DDLm and associated dictionaries <[email protected]>
- Subject: Re: [ddlm-group] Space as a list item separator>
- From: "Herbert J. Bernstein" <[email protected]>
- Date: Tue, 1 Dec 2009 06:01:48 -0500 (EST)
- In-Reply-To: <[email protected]>
- References: <C7398588.126B6%[email protected]><[email protected]><[email protected]><[email protected]><[email protected]><[email protected]><[email protected]><[email protected]>
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
[email protected]
=====================================================
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 <[email protected]> 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 <[email protected]>
> 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
> <[email protected]> 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
>
>
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- 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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