Re: [CF-metadata] Usage of the 'Conventions' attribute

2013-01-29 Thread David Hassell
Hello Nan, et al., Any of these special characters, other than the '_', would probably cause problems for code that deals with NetCDF files. The '.' is used in Matlab for access to structures, and the '@' is used to identify a variable as a function handle. There are work-arounds, but they

Re: [CF-metadata] Usage of the 'Conventions' attribute

2013-01-29 Thread David Hassell
Hello Dennis It should be noted however that dot in particular causes problems for accessing remote datasets through DAP because the dot character is used in DAP constraints to specify fields inside DAP Sequences or Structures or Grids. I'm afraid that I'm not familiar with DAP. Do you mean

Re: [CF-metadata] Usage of the 'Conventions' attribute

2013-01-29 Thread Nan Galbraith
There is no interaction with the syntax of the processing language, surely? I checked to see if the Matlab NetCDF built-in routines would allow attributes with dots in them, and they do; both global and variable level atts can contain 'cf.'. My code, though, has to be able to write files for

Re: [CF-metadata] Usage of the 'Conventions' attribute

2013-01-29 Thread Bentley, Philip
Hi Nan, I agree with Roy that CF should be the default namespace in a CF compliant file... What does that mean? Until we agree on the meaning and mechanism of namespace-handling within CF-compliant files and software, I fear that such statements do not provide much guidance at the