8. The method of claim 1 wherein the code structure query further comprises one or more Boolean operators that operate on the at least one field-value expression.
8. The method of claim 1 wherein the code structure query further comprises one or more Boolean operators that operate on the at least one field-value expression. 9. The method of claim 8 wherein the code structure query further comprises free text terms; and wherein the one or more Boolean operators further operate on the free text terms.