A healthy amount of the writing of the world still begins life in a word processor. Any string born of this heritage is likely to have single and double (curve

A healthy amount of the writing of the world still begins life in a word processor. Any string born of this heritage is likely to have single and double (curved) quotation marks. OpenOffice, Word, Pages – they all do it and are expected to. For that reason, I consider them to be reasonably present in ordinary string data.