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First, let's have a look at the table of the individual "characters"
with their Wylie transliterations:

E<lt>http:E<sol>E<sol>en.wikipedia.orgE<sol>wikiE<sol>Tibetan_alphabetE<gt>

A few key observations:

=over

=item *

(Almost) all letters represent a consonant, carrying an B<inherent> vocal: "a"

=item *

These lettersE<sol>syllables are sorted according to tonality and aspiration (in pronunciation)

=item *

Other vocals will be achieved by adding certain vocal-symbols in the proper places:

=back

   * i.e. you can build the following syllables by adding a vowel sign:
     * ka -> ko
     * ka -> ku
     * ka -> ki
     * ka -> ke

The latter is a process of B<merging> symbols to form new symbols (with the
merging taking place in the proper places -- 'e' is on top, 'u' will be inserted
at the bottom)

This merging process can be seen as building "ligatures", of which even more exist.

As we have seen, the vocal symbols (for all vocals except 'a', which is inherent)
need to be added in the proper places.

For the rest of the symbols that can be added, the scheme looks the following:

         b  s  g   r   u   b  s
         |  |  |   |   |   |  |
         1  2  3   4   5   6  7

With the places being the following:

1) Prescript
2) Superscript
3) The Center piece (carriyng the inherent vocal, mandatory)
4) Subscript
5) The vocal sign
6) Postscript1
7) Postscript2

Note: Except from the Center piece (3), all other signs are optional.

Note: Optional character B<can> form B<ligatures> with the character they are combined with.

=head1 TECHNICAL BACKGROUND (UNICODE)

The Unicode consortium had to decide what they want their code points to look like:

a) either each altered base syllable is represented (i.e. ka, ko, ke, ki, ku) as a separate character (code point)
b) the base syllables are represented and the altered syllables will be merged

Since it was chosen for the latter, this has a few consequences:

=over

=item *

The graphical representation will depend on building B<ligatures> and thus on the font you are using.

=back

=over

=item *

That means you have to make sure you have appropriate fonts to display the signs correctly.

=back

Even if you find the ligatures not mixed together well (e.g. on your shell),
you can still copy-paste the results somewhere else where you have a proper
font available. Since only the code points are represented and it is up to the font
to build the ligatures you will find the copy-pasted result come out very well with
a proper font having the ligatures available.

Copy-pasting your results L<here>(http:E<sol>E<sol>www.thlib.orgE<sol>referenceE<sol>transliterationE<sol>wyconverter.php) might help should the tibetan signs not be rendered correctly on your shell

=head1 USAGE

     echo bsgrubs | wylie-transliterate

or

   wylie-transliterate <FILE>

=head1 MOTIVATION

"Nobody needs such a module!" -- you might say. I agree. But the B<one> person
who might need it will be more than happy to have. (Given heE<sol>she finds it in the webz).

Still though, let me just say:

=over

=item *

I do it because I can

=item *

in my studies I visited a course "Classical Tibetan I"

=back

Really, I didn't learn too much about this interesting language, but a few things
just stuck with me, such as the composition of characters to build words.