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/***************************************************************
LanceMan's quickplot --- a fast interactive 2D plotter
Copyright (C) 1998, 1999 Lance Arsenault
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; version 2
of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Or look at http://www.gnu.org/copyleft/gpl.html .
**********************************************************************/
/* $Id: read_in_data.c,v 1.5 1999/02/28 01:58:50 lance Exp $ */
#include <stdio.h>
#include <assert.h>
#include "data.h"
extern int read_ascii_file(FILE *fileptr, char *file, Plot *plot);
extern int read_binary_file(FILE *fileptr, char *file, Plot *plot);
extern int check_for_stdin(void);
extern void usage(const char *argv0, FILE *fileptr);
static void error_exit(char *file)
{
fprintf(stderr,
"quickplot ERROR: Having trouble interpeting file %s\n",
file);
exit(1);
}
void read_in_data(Plot *plot, int argc, const char *argv0)/* open the files */
{
int i;
static FILE *fileptr;
for(i=0;plot->infiles[i] != NULL;i++)
{
if(NULL == (fileptr = fopen(plot->infiles[i],"r")))
{
fprintf(stderr,"quickplot ERROR: can't open file: %s\n",
plot->infiles[i]);
exit(1);
}
if(plot->flag & BINARY_DATA)
{
if(read_binary_file(fileptr, plot->infiles[i], plot))
error_exit(plot->infiles[i]);
}
else
if(read_ascii_file(fileptr, plot->infiles[i], plot))
error_exit(plot->infiles[i]);
fclose(fileptr);
}
if((!(plot->flag & NO_PIPE_IN)) && (plot->flag & PIPE_IN || (i = check_for_stdin())
|| argc<2 ||(plot->infiles[0] == NULL))
)
{
if( !(plot->flag & PIPE_IN) && !i)
{
usage(argv0,stderr);
if(plot->flag & BINARY_DATA)
fprintf(stderr,"quickplot Info: No input file given."
" Reading in binary data from standard input.\n=>");
else
fprintf(stderr,"quickplot Info: No input file given."
" Reading in ASCII data from standard input.\n=>");
fflush(stderr);
}
if(plot->flag & BINARY_DATA)
{
if(read_binary_file(stdin,"PIPE STDIN", plot))
error_exit("PIPE STDIN");
}
else
{
if(read_ascii_file(stdin,"PIPE STDIN", plot))
error_exit("PIPE STDIN");
}
}
if(plot->dim == 0)
{
fprintf(stderr,"quickplot ERROR: I've got no data to plot."
" Where is the data?\n");
exit(1);
}
}
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