Implemented .ifnot logic. ...

Relaxed requirements so that .if/not only requires one or more [var] references.

Completed logic for existential conditional and final .endif counts. ...

Modified variable deref logic to report reference attempts to undefined variables.

Expanded DerefVar() to properly replace all variable references. ...

Put in basic support for .if [var] form.

Consolidated the builtins into the master symbol table. ...

Defined indexing constants to manipulate a variable descriptor entry.

Changed line parser logic to provide debug indication that ...

a line parsed to blank and was ignored.

Added Variable Reference regular expression and matching object.

Slight code reorganization and comment cleanup.

Improved formatting of error, warning, and debug messages.

Added parsing for .endif and .include directives.

Removed status from return API. Not needed - implied by contents ...

of the Error Messages list.

Added support for embedding reserved words and symbols. ...

Implemented .include logic.

Cleaned up API and return data structures. ...

Added facility for line conditioning.
Added Debug support.

Created skeleton for parser logic, API, and return logic.

Cleaned up formatted output.

Added formatted warning and error message output.

Initial revision