I'll illustrate why you can't alphabetise a vernacular dialect.
The cat sat on the mat
This is RP English. Both the
's are the same, both are glissaded in speech to th'cat and th'mat. In Tyke dialect (traditionally, I don't know if it is still the case) the second 'the' disappears and becomes on't mat
. However this cannot be done at the start of a sentence because t'cat
not only sounds ugly but it is ambiguous -- the listener may hear Tercat, a loose forward who played for Hunslet.
So the dialect goes into reverse and emphasises the full 'the' by adding a post-vocalic R at the end, making a long therr
which when added to cat
makes a pleasing dip in the inflection. So how do you write the
in Tyke? And so on ad infinitum. One of the points about regional dialects is that they are actually designed to be, after a fashion, poetically expressive. RP English cannot do that. It is too simple, too phonetic, too standardised. But it does allow everyone to understand (and write to) everybody else.