In addition to Tcl, Tclmetar requires Tcllib, but it has no further requirements.
The source tclmetar-<version>.tgz of the Tclmetar library can be downloaded from the software area of the Nbspproject. The distribution comes with an INSTALL file that contains the installation instructions, a set of examples to illustrate the basic functionality, and with a README file that list the available procedures and their usage.
In addition there are binary packages for FreeBSD and CentOS, in tbz and rpm formats respectively, that can be installed with the native package management tools (e.g., rpm, pkg_add).
Binary packages exist for FreeBSD (tbz) and CentOS (rpm). Since tclmetar is written entirely in Tcl and no compilation is involved, the rpm packages should work anywhere rpm is the package management tool.
The packages, available from the software section at noaaport.net, can be installed with the native package management tools (e.g., rpm, pkg_add):
rpm -i tclmetar-<version>.rpm
pkg_add tclmetar-<version>.tbzThis boils down to executing
./configure.sh
make install-dirs
make installinside the tclmetar distribution directory.
Tclmetar is written entirely in Tcl, so there is no compilation involved. The package consists of single file ``metar.tcl'' and the accompanying index file pkgIndex.tcl.
Perhaps the best option is to create a directory tclmetar at the same as the tcllib directory, and put both of the above files in that directory.
The files can be saved anywhere, for example in
> /usr/local/lib/tcl_site
Any script that will use the package can then add the line
lappend auto_path "/usr/local/lib/tcl_site"before
package require metarand it will be found.
A script will typically be of the form
#!/usr/local/bin/tlsh8.5
package require metar
<load data here>
foreach line $data {
metar::decode $line;
foreach param_name [lsort [::metar::get_param_list]] {
set param_val [::metar::get_param $param_name]
}
}The complete set of procedures contained in the package are listed and described in the README file mentioned above, and here we mention a few, taken from the examples that are provided with the distribution and the packages.