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/*****************************************************************************
*
* MODULE: DBF driver
*
* AUTHOR(S): Radim Blazek
*
* PURPOSE: Simple driver for reading and writing dbf files
*
* COPYRIGHT: (C) 2000 by the GRASS Development Team
*
* This program is free software under the GNU General Public
* License (>=v2). Read the file COPYING that comes with GRASS
* for details.
*
*****************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <dirent.h>
#include <gis.h>
#include <dbmi.h>
#include "globals.h"
#include "proto.h"
/* add column to table */
int add_column (int tab, int type, char *name, int width, int decimals)
{
int c;
G_debug (3, "add_column(): tab = %d, type = %d, name = %s, width = %d, decimals = %d",
tab, type, name, width, decimals);
/* Check if the column exists */
for ( c = 0; c < db.tables[tab].ncols; c++ ) {
if ( G_strcasecmp( db.tables[tab].cols[c].name, name ) == 0 ) {
append_error( "Column '%s' already exists (duplicate name)\n", name);
return DB_FAILED;
}
}
c = db.tables[tab].ncols;
if ( db.tables[tab].ncols == db.tables[tab].acols )
{
db.tables[tab].acols += 15;
db.tables[tab].cols = (COLUMN *) realloc ( db.tables[tab].cols, db.tables[tab].acols * sizeof (TABLE) );
}
strncpy ( db.tables[tab].cols[c].name, name, DBF_COL_NAME-1 );
db.tables[tab].cols[c].name[DBF_COL_NAME-1] = '\0';
db.tables[tab].cols[c].type = type;
db.tables[tab].cols[c].width = width;
db.tables[tab].cols[c].decimals = decimals;
db.tables[tab].ncols++;
return DB_OK;
}
/* returns column index or -1 */
int find_column (int tab, char *col)
{
int i;
for ( i = 0; i < db.tables[tab].ncols; i++ )
{
if ( G_strcasecmp( db.tables[tab].cols[i].name, col ) == 0 )
return (i);
}
return (-1);
}
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