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/* metar.c -- metar decoder
$Id: metar.h,v 1.6 2006/04/05 20:30:28 kees-guest Exp $
Copyright 2004,2005 Kees Leune <kees@leune.org>
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; either version 2 of the License, or
(at your option) any later version.
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
*/
/* max size for a URL */
#define URL_MAXSIZE 300
/* max size for a NOAA report */
#define METAR_MAXSIZE 512
/* where to fetch reports */
#define METARURL "http://weather.noaa.gov/pub/data/observations/metar/stations"
/* clouds */
typedef struct {
char type[3];
int level;
} cloud_t;
/* linked list of clouds */
typedef struct cloudlist_el {
cloud_t *cloud;
struct cloudlist_el *next;
} cloudlist_t;
/* linked list of clouds */
typedef struct obslist_el {
char *obs;
struct obslist_el *next;
} obslist_t;
/* reports will be translated to this struct */
typedef struct {
char station[10];
int day;
int time;
int winddir; // winddir == -1 signifies variable winds
int windstr;
int windgust;
char windunit[5];
int vis;
char visunit[5];
int qnh;
char qnhunit[5];
int qnhfp; // fixed-point decimal places
int temp;
int dewp;
cloudlist_t *clouds;
obslist_t *obs;
} metar_t;
typedef struct {
char date[36];
char report[1024];
} noaa_t;
/* Parse the METAR contain in the report string. Place the parsed report in
* the metar struct.
*/
void parse_Metar(char *report, metar_t *metar);
/* parse the NOAA report contained in the noaa_data buffer. Place a parsed
* data in the metar struct.
*/
void parse_NOAA_data(char *noaa_data, noaa_t *noaa);
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