Detecting indexing errors in declarative languages

A non-transitory computer readable storage medium containing program instructions that, when executed by a controller within a computer, cause the controller to execute a method for detecting potential errors in lines of program code, the method comprising:

• searching, by a set of computers, for lines of command codes in the lines of program code, wherein a line of command code includes a set of command codes and a set of indices for the set of command codes, wherein the lines of command codes are organized as a plurality of paragraphs, and at least one of the lines of commands codes in each of the paragraphs is different from the other lines of commands codes in the paragraph;
• separating, by the set of computers, the sets of command codes from the sets of indices for the lines of command codes, wherein the sets of indices are a matrix of indices, and each row of indices in the matrix of indices includes the sets of indices for each of the lines of command codes from one of the paragraphs;
• determining, by the set of computers, if each set of vertical indices in the matrix of indices that does not match at least one known series in a set of known series;
• and
• reporting, by the set of computers, to a user computer each set of vertical indices that does not match the at least one known series.

A computer system comprising:

• a set of computers, wherein each of the computers is configured to perform a portion of a method for detecting potential errors in lines of program code, and each computers includes at least one processor, and a computer-readable memory including computer code for the processor to execute a portion of the method, wherein the method includes the steps of:
• searching, by the set of computers, for lines of command codes in the lines of program code, wherein a line of command code includes a set of command codes and a set of indices for the set of command codes, wherein the lines of command codes are organized as a plurality of paragraphs, and at least one of the lines of commands codes in each of the paragraphs is different from the other lines of commands codes in the paragraph;
• separating, by the set of computers, the sets of command codes from the sets of indices for the lines of command codes, wherein the sets of indices are a matrix of indices, and each row of indices in the matrix of indices includes the sets of indices for each of the lines of command codes from one of the paragraphs;
• determining, by the set of computers, each set of vertical indices in the matrix of indices that does not match at least one known series in a set of known series;
• and
• reporting, by the set of computers, to a user computer each set of vertical indices that does not match the at least one known series.