function strpos
Returns the position of a substring within a string, or -1 if the substring does not occur. If the first argument is a string array, a matrix with the same number of elements as the string is returned.
Syntax
result = strpos(X, Y)
Arguments
| X: | A string or a string array |
| Y: | The substring to be searched for |
Switches
| /nocase: | The search is done case-insensitive |