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[ddlm-group] Close quotes not followed by whitespace

  • To: Group finalising DDLm and associated dictionaries <ddlm-group@iucr.org>
  • Subject: [ddlm-group] Close quotes not followed by whitespace
  • From: Joe Krahn <krahn@niehs.nih.gov>
  • Date: Thu, 26 Nov 2009 21:13:56 -0500
CIF2 no longer skips close-quotes that are not followed by whitespace. I 
assume that close-quotes still need trailing whitespace, and that it is 
simply a syntax error for a close quote followed by non-whitespace.

Therefore, it should be possible to allow CIF1 input for backwards 
compatibility by accepting these invalid close-quotes on input. That 
should help minimize conflicts with adopting CIF2. The only input that 
would be misinterpreted would be a quote character written as """, most 
software will have written as '"', using the opposite quote character.

So, this:


is just a syntax error in CIF2, or can be accepted as a line-folded ";" 
in CIF1.

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