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NOTICE: This version of the NSF Unidata web site (archive.unidata.ucar.edu) is no longer being updated.
Current content can be found at unidata.ucar.edu.
To learn about what's going on, see About the Archive Site.
The \n is the method for embedding a new line in 'C'. To do it in FORTRAN, you will need to do something like: status = nf_put_att_text(ncid,nf_global,'experimental3',16,"LineOne" // char(10) // "LineTwo.") Ian Harris wrote:
Hi,
Firstly, apologies if this list isn't the closest match to my problem - I can't
see one closer!
I'm writing NetCDF files from F77, all working nicely.. until I try to write
text attributes with multiple lines.
As far as I can discover, I'm supposed to embed '\n' terminators in the
strings, which makes sense to me. UCAR's NetCDF information includes:
<QUOTE>
The usual escape conventions for C strings are honored. For example:
"a" // ASCII 'a'
"Two\nlines\n" // a 10-character string with two embedded newlines
"a bell:\007" // a string containing an ASCII bell
"ab","cde" // the same as "abcde"
</QUOTE>
(From http://www.unidata.ucar.edu/software/netcdf/docs/netcdf.html - I'm
currently running NetCDF 3.6.3 according to ncdump)
However, when I try this, it doesn't seem to work. The library seems to add a
second backslash. For example:
I run:
status = nf_put_att_text(ncid,nf_global,'experimental3',16,"LineOne\nLineTwo.")
ncdump -h on the result:
:experimental3 = "LineOne\\nLineTwo" ;
I note that the full stop is missing from the end, implying to me that the '\n'
has been counted as a single character, but the extra '\' has exhausted the
character count (16) before the end.
Is this expected behaviour? If so, is there any way for me to produce
multi-line attribute values?
Cheers
Harry
Ian "Harry" Harris
Climatic Research Unit
School of Environmental Sciences
University of East Anglia
Norwich NR4 7TJ
United Kingdom
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