Discussion List Archives

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [ddlm-group] Role of separators in CIF


Simon: From reading your previous emails, I'm guessing that the source of your concern is that the possible characterset of non-delimited strings appears more restrictive than is strictly necessary. In particular, you're not sure why we have excluded quote and double quote from non-delimited strings.

You are correct that the other CIF2 syntax does not require that quote or double quote are excluded from non-delimited strings (apart from the first character, of course). The exclusion of the quote/double quote was on general principle of keeping all characters that serve as delimiters out of non-delimited strings, even if those characters could never cause confusion. It also has the benefit of allowing some syntax errors to be picked up.

Nick is with me in Sydney, and we have decided that this is the sort of issue that we just have to vote on, as the arguments either way are not conclusive.

I would therefore call everybody to vote on the following proposition:

"That <quote> and <double quote> may appear in non-delimited strings, as long as they are not the first character"

Voting so far:

Against: Nick
For: James
Agnostic: ?

T +61 (02) 9717 9907
F +61 (02) 9717 3145
M +61 (04) 0249 4148
ddlm-group mailing list

Reply to: [list | sender only]
International Union of Crystallography

Scientific Union Member of the International Science Council (admitted 1947). Member of CODATA, the ISC Committee on Data. Partner with UNESCO, the United Nations Educational, Scientific and Cultural Organization in the International Year of Crystallography 2014.

International Science Council Scientific Freedom Policy

The IUCr observes the basic policy of non-discrimination and affirms the right and freedom of scientists to associate in international scientific activity without regard to such factors as ethnic origin, religion, citizenship, language, political stance, gender, sex or age, in accordance with the Statutes of the International Council for Science.