% part of alphabet:
%    a, e, o, u

i  ı % dotlessi
i: i % i
o: ö % odiaeresis
u: ü % udiaeresis

% not part of alphabet, but sometimes used:

a= â % acircumflex
i= î % icircumflex
o= ô % ocircumflex


% part of alphabet:
%    b, c, d, f, g, h, j, k, l, m, n, p, r, s, t, v, y, z

c: ç % ccedilla
g= ğ % gbreve
s: ş % scedilla

% --------------
% probably to be ignored

% others; http://en.wikipedia.org/wiki/Arabic_alphabet

@  ء % 0621 / afii57409 / ARABIC LETTER HAMZA
#    % ayn??? - no idea what this should be

g: ġ % gdotaccent
z: ż % zdotaccent

d! ḍ % 1E0D / ddot[below/accent] / might not have the name yet
h! ḥ % 1E25 / hdot[below/accent]
k! ḳ % 1E33 / kdot[below/accent]
s! ṣ % 1E63 / sdot[below/accent]
t! ṭ % 1E6D / tdot[below/accent]
z! ẓ % 1E93 / zdot[below/accent]

d= ḏ % 1E0F / LATIN SMALL LETTER D WITH LINE BELOW
n= ñ % ntilde
t= ṯ % 1E6F / LATIN SMALL LETTER T WITH LINE BELOW
z= ẕ % 1E95 / LATIN SMALL LETTER Z WITH LINE BELOW

h=   % h with line below: not in unicode; perhaps h with breve below (1E2B)?
s=   % s with line below: not in unicode; perhaps scaron?