Translator – Sub-String Assignments (Release)

After testing the Table initialization code that checks maximum number of operands and maximum number of associated codes, several sub-string assignments statements were added and tested.  Then some sub-string assignments with error were added.

One of the types of errors being tested were the assignment of temporary strings like MID$(A$+B$,2)=C$. There error was correctly detected, but the error was pointing to the MID$, which could be confusing. Therefore, a change was made that for an assignment, if the expected reference flag is not set, then if the token without the reference flag is a sub-string function (its data type is sub-string), then the error token is set to the token if the first operand of the sub-string function. So for this statement, the error will be pointing to the + of the A$+B$.

During testing of the sub-string assignments, one of tests tried was the mixing of regular strings and sub-string, for example A$,LEFT$(B$,1),C$=D$. This did not work correctly (this type of statement will be allowed). Also noticed that for lists, the assignment operator output list item only had two operands (the last variable being assigned and the operand being assigned). It should contain all of the operands being assigned. So these are two more issues that need to corrected.

In any case, sub-string assignments are working so another developmental release is being made and ibcp_0.1.11-dev-3-src.zip has been uploaded at Sourceforge IBCP Project along with the binary for the program. Now to fix assignment list  operands and mixing of string types...