/// this chunk is included by prefabs to read data..
//
#if @data = "" && @inlinedata = ""
  #write stderr
  Error: either 'data' or 'inlinedata' must be specified.
  #endwrite
  #exit
#endif
//
//// read data file..
#proc getdata
#if @inlinedata != ""
  #set tmpfile = $tmpfilename( inline )
  #write stderr
    #+ tmpfile is @tmpfile
  #endwrite
  #write @tmpfile
    #+ @inlinedata
  #endwrite
  pathname: @tmpfile
#elseif @data = stdin || @data = -
  standardinput: yes
#else
  // changed to use pathname - scg 5/24/05
  pathname: @data
#endif

#ifspec delim
#ifspec header fieldnameheader
#ifspec comment commentchar
#ifspec select
#ifspec echodata showresults
#ifspec nfields

#if @context = chron 
  #include $chunk_chronfilter
#elseif @context = stack && @stackarea = yes && @y2 != ""
  #include $chunk_stackareafilter
#elseif @context = vdist
  #include $chunk_vdistfilter
#elseif @context = heatmap
  #include $chunk_heatmapfilter
#endif

#endproc

#if @inlinedata != ""
  #shell
    rm -rf @tmpfile
  #endshell
#endif

#if @NRECORDS = 0
  #exit
#endif

// #write stderr
// Got @NRECORDS records, @NFIELDS fields per record.  
// #endwrite

