#! /usr/bin/python
# -*- coding: utf-8 -*-
#
# Script per estrapolare dati dai file gpx
# Copyright (C) 2008  Alessandro De Noia <alessandro.denoia@gmail.com>
#
# 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., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

import sys
from BeautifulSoup import BeautifulStoneSoup
from time import time

a = time()
try:
	NomeFile = sys.argv[1]
except:
	print "Argomento mancante o non valido"
	exit()
	
try:
	gpx = open(NomeFile,'r')
except:
	print "Impossibile leggere il file, controllare che lo stesso esista e che sia leggibile"
	exit()
	
xml = gpx.read()
gpx.close()
soup = BeautifulStoneSoup(xml)
dati = open('dati.txt','w')
n = 0
for i in soup.findAll('ele'):
	dati.write(i.string + '\n')
	n = n + 1
dati.close()
b = time()
c = b - a
print "Ho salvato",n,"valori in",c,"secondi"