Detecting indexing errors in declarative languages

摘要

A computerized method for detecting errors in program code including searching for lines of command codes in the program code, wherein a line of command code includes a set of command codes and a set of indices; separating the sets of command codes from the sets of indices, wherein the sets of indices are a matrix; parsing the sets of command codes to locate three or more consecutive lines of command codes, which have the same sets of command codes; for the three or more consecutive lines of command codes, generating sets of vertical indices from vertically aligned indices in the matrix; determining if each set of vertical indices does not match at least one known series in a set of known series; and reporting to a user computer each set of vertical indices that does not match the at least one known series.