I don't know of any such resource, but perhaps writing a perl script to do figure that out would be the way to go? Have it read plenty of text in your target language and calculate the frequency of each symbol.

You'd have to ensure that you're reading plaintext, though, and not markup or something like that. The following would populate %symbol with a frequency count. You'd just pass it a list of files on the command line. What you'd do with the data from there would be up to you.

while ($line = <>) {
    $symbol{ $_ }++ for ( split //, $line );
}
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Cheers,
Ovid

Update: mdillon had a good point. Here's a rewrite:

while ($line = <>) {
    for ( split //, $line ) {
        $symbol{ $_ }++;
        $total++;
    }
}
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Or, the fun method: use my first code and add the following after the loop:

$total = eval (join '+', values %symbol); # :)
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