Hy Christian, I attaching the ru.ctb and ru-ru-comp8 table related differences.I not found Peter first letter the wrote diff file, so hopefuly this information helps the choice.
Attila
--- ru.ctb 2012-08-06 17:50:43.187030582 +0200 +++ ru-ru-comp8 2012-12-19 08:26:48.116218108 +0100 @@ -45,7 +45,7 @@ # 5. Numbers are defined as in the American standard. This means dot-2 for # number '1', and so on. This will conflict with the cyrillic comma which is # also dot-2. -# 4. Special characters like !"#¤%&/()=? follow the American standard if +# 4. Special characters like !"#'\x00a4'%&/()=? follow the American standard if # possible. # 2. Control characters are often used on Linux. These are not very well # implemented. More work should be done. @@ -249,19 +249,19 @@ lowercase \x0463 345 CYRILLIC SMALL LETTER YAT uppercase \x046a 2467 CYRILLIC CAPITAL LETTER BIG YUS lowercase \x046b 246 CYRILLIC SMALL LETTER BIG YUS -punctuation \x2219 238 BULLET OPERATOR -punctuation \x221a 568 SQUARE ROOT -punctuation \x2248 358 ALMOST EQUAL TO -punctuation \x2264 4568 LESS-THAN OR EQUAL TO -punctuation \x2265 35678 GREATER-THAN OR EQUAL TO -punctuation \x2320 2568 TOP HALF INTEGRAL -punctuation \x2321 258 BOTTOM HALF INTEGRAL -punctuation \x2580 348 UPPER HALF BLOCK -punctuation \x2584 468 LOWER HALF BLOCK -punctuation \x2588 68 FULL BLOCK -punctuation \x258c 278 LEFT HALF BLOCK -punctuation \x2590 2378 RIGHT HALF BLOCK -punctuation \x2591 3578 LIGHT SHADE -punctuation \x2592 267 MEDIUM SHADE -punctuation \x2593 3568 DARK SHADE -punctuation \x25a0 23568 BLACK SQUARE +space \x02219 238 BULLET OPERATOR +punctuation \x0221a 568 SQUARE ROOT +punctuation \x02248 358 ALMOST EQUAL TO +space \x02264 4568 LESS-THAN OR EQUAL TO +space \x02265 35678 GREATER-THAN OR EQUAL TO +punctuation \x02320 2568 TOP HALF INTEGRAL +punctuation \x02321 258 BOTTOM HALF INTEGRAL +punctuation \x02580 348 UPPER HALF BLOCK +punctuation \x02584 468 LOWER HALF BLOCK +punctuation \x02588 68 FULL BLOCK +punctuation \x0258c 278 LEFT HALF BLOCK +punctuation \x02590 2378 RIGHT HALF BLOCK +punctuation \x02591 3578 LIGHT SHADE +punctuation \x02592 267 MEDIUM SHADE +punctuation \x02593 3568 DARK SHADE +punctuation \x025a0 23568 BLACK SQUARE