re: [cgmo-webcgm] ISSUE: delimited string inconsistency?

[Don Larson <dlarson@cgmlarson.com>]

Lofton,

  > Hi WebCGM TC,

  > I'm working on the DOM test case for ApsAttr 'viewcontext', and have found 
  > a couple of problems about "delimited string".

  > First sub-Issue -- 5.5 and 5.7.6 inconsistent.

  > For example, suppose I had a viewcontext of the two NVDC corner points 
  > (0,0) and (100,100).  What would be the delimited string?  The example in 
  > the table of 5.7.6 suggests:
  > "0,0,100,100"

  > However, the grammar of section 5.5 suggests something very different:
  > "'0' '0' '100' '100'"

  > 5.7.6 calls it a delimited string, but its example just looks like a single   > string of comma-separated numbers.  If it were really meant to be a 
  > delimited string, then presumably each number would be a sub-string.  Same 
  > comment for 'region'.

  > Before fixing table 5.7.6, we ought to decide on this...

I think that delimiting each number requires a lot of extra 
typing by coder and it not as readable as "0 0 100 100"
I think I prefer wsp to commas.

  > Second sub-Issue -- is delimited string a good choice?

  > Delimited string seems appropriate for lists of possibly complex 
  > sub-strings (e.g., linkuri).  But it seems like overkill for a list of 
  > numbers (such as 'viewcontext' and 'region').  It would be simpler to 
  > define those as a single string, consisting of wsp-delimited or 
  > comma-delimited numbers.

  > Agree?  Disagree?  (We can decide on the delimiting -- comma or wsp -- 
  > after we decide whether or not to change it to single string.)

I think it should be single string with numbers separated by wsp
and should apply to region also.

  > Regards,
  > -Lofton.
Regards, 
Don.