OK this question is linguistic.
I've searched the net and I just can't find a list with the languages that follow the rule "read exactly what is written", which means that the letters correspond more or less to an unchanging exact pronunciation. Of course there are always rules and exceptions.
I read somewhere that languages which are partially of celtic decadence are not phonetic (if that's the correct term to describe this feature) e.g. English, French, Gaelic etc. On the other hand the Germanic languages (German, Dutch, Norwegian) and Greek follow the above principle.
What do you think? Is there somebody who knows for sure?