Re: [Gretl-devel] parser problem

After the change: as above, except that if we validate the obs identifier we record it internally as a string, not a scalar. Then when it comes to evaluating, e.g., scalar xt = x[1995:1] we find the string "1995:1" which converts to an index in situ. (This is OK since a string is in general acceptable as an obs identifier.) On the other hand, if we try to evaluate, e.g., foo = x(1995:1) the form "x()", for x a series, leads us to expect a lag/lead specification, which requires a scalar value. We find a string where there ought to be a scalar, and we error out.