From: rkingdon
By default the comparisons ignore the case of the text. There is an option -to make the comparisons case sensitive.
+ to make the comparisons case sensitive.The asterix (*) character can be used in answers as a "wild card" character. It stands for any number of characters (including no charcters at all). For example, the answer "Long*" will match "longer", "longest" and "long". If one of the answers is just "*" (a single *) this anwser will match - anything, it is normally used as the last "catch-all" answer. - (If an asterix (*) is actually needed in an answer, it should be entered as - \*, backslash asterix)
+ anything, it is normally used as the last "catch-all" answer. The + matching process goes through the answers in the order they appear on the + screen. Once a match is found the process stops and the corresponding + result (and response, if present) is returned. So, if for example the + answers are Longest, Long* and * (in that order), the input + "longer" will match the second answer and, in this case, the + third answer, although a match, is ignored.
+ +If an asterix (*) is actually needed in an answer, it should be entered as + \*, backslash asterix.