Translator – New Operand Code (Debugging)

There were several problems in the Table that needed to be fixed, all caught by the check code during initialization (so it is a good thing to have the initialization checks to significantly cut down on debugging time). Some of the problems were in the check code itself, but these were easily corrected.

The first problem was the check for the index to the second operand associated codes – to make sure that the index is not greater than the number of associated codes in the array. This check can only performed if the index is greater than zero because otherwise the code either does not have a second set of associated codes or the index is zero (which does not need to be checked). Several entries had the wrong index to the second operand associated codes the needed to be corrected.

The last problem was the checks added for multiple entries (e.g. MID$) where an entry with the multiple flag set, the name of the function of the next table entry must be the same and the next entry must have expression information present – these checks were reversed (reporting an error when the entries were correct).

Once the Table initialization succeeded, the regression tests were run, where all of them failed including the Parser tests. The Parser tests failures were due to the function name array in the test code was not updated for all the new associated codes that were added to the table. To prevent having to update this array in the future (which is a pain), the process was somewhat automated.

A new awk script was created (similar to the existing codes.awk) that processes the ibcp.h include file scanning for the xx_Code enumeration values and creating a list of quoted strings separated by commas (except the last) with the name of the code, i.e. the “xx” in the enumeration value. The output of this file is put into an include file and an include statement was added into the array to get these strings.

Without using a more sophisticated make system, the awk scripts still need to be run manually when the Code enumeration is modified.  The Parser tests now all succeed so debugging continues with Translator tests...