DarOv wrote:
If it doesn't work properly, the transliteration will be incorrect. Have they stopped the project or will they develop it? Maybe they haven't added the right letters yet.
I think it's working as intended. They have no way to transliterate roman letters which simply don't have equivalents in Ogam. It seems the choice they made in such cases is to just omit any such letters silently rather than trying to get their system to approximate the phonetics of the otherwise missing letter.
wayinwilly wrote:
I find all of this very interesting One other thing I have noticed how come the vowels are sometimes a dot and sometimes a line?
On computers that's just a matter of font. Like when you write the same letters but they look different in Times New Roman and Comic Sans.
Historically, Ogam on stones generally used a small notch directly on the stemline to indicate vowels. This is approximated as a dot in some 2D fonts, including the one used by Unicode. When Ogam started being used in manuscripts around the 7th century scribes used long strokes through the stemline to indicate vowels. As these vowel strokes are perpendicular to the stemline they are distinct from consonants like M and R, which are diagonal. They may have done this because they found it too difficult to approximate the dots of the stone tradition using a quill and ink, however, there is evidence that ogam was being inscribed on flat surfaces, with a stemline drawn in, from much earlier than the 7th century. So, by the time Ogam started being used in manuscripts, it may have already been common practice to indicate vowels with long strokes when written on 2D surfaces.
If you're interested in reading more about Ogam
this website is a reliable source of information, and is up to date with modern academic understanding of the script. They have a number of blogs discussing various aspects of Ogam and its various uses over time.
This blog in particular addresses the topic of manuscript Ogam, if you'd like to know more about the differences between this and the stone inscriptions.