Re: Metar which causes warnings

[Martin G. <gim...@gi...>]

Ondrej Jombik <ne...@po...> writes:

>                                         Maxim, 20:46:05
>                                         28. jun 2002 (piatok)
> Greetings!
>=20
> 	Following metar causes several warnings:
>=20
> cc: IN, icao: VABB
> 201530Z VABB 24012KT 5000 FU FEW018 SCT025 28/22 Q1004 NOSIG

Thanks for the report - I've tried to fix it. Raymond: is the fix
correct?
=20
> 	I have one another question. What does it means "The
> temperature feels like"? I don't understand this issue, so I can't
> properly translate it into Slovak language. I hope your explaination
> will help me.

I'll give it a try: By combining the windspeed and the temperature we
can calculate a 'windchill' factor. This temperature tells you how a
human would perceive the temperature, e.g. the wind feels cold if it's
blowing strong.

Likewise, by combining the temperature and relative humidity we can
calculate a 'heatindex'. This is only used if it's hot.

One of these temperatures are appended to the 'feelslike' string.

By the way: I think we should change this so that the 'feelslike'
string is used as a format string to sprintf() instead of just
appending the temperature to it. By using the string as a format, it's
easy for the translator to put text after the temperature - that isn't
possible now.

That applies for a lot of the strings: the code in pw_test.php should
not just concatenate the strings (like it does now) - we should use
sprintf() instead. And now that we're only interested in PHP4 and
later, then we can use *argument swapping* like this:

  $format1 =3D 'There are %d monkeys in the %s';
  $format2 =3D 'The %2$s contains %1$d monkeys.';

where both formats can be used with the same call to printf():

  printf($format, $num, $location);

This is a powerful technique which we ought to take advantage of.

=2D-=20
Martin Geisler                       My GnuPG Key: 0xF7F6B57B

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