COBOL Copybook File

Metric Description
Blank Lines Number of blank lines of source (sequence number area content is ignored).
Data Elements Number of declared data items (elementary structures and their fields).
Include Statements Number of include statements: COPY, ++INCLUDE, –INC, EXEC SQL INCLUDE.
Lines with Comments Number of lines of source containing comments, including inline comments placed on lines with statements.
Source Lines Number of lines of source, including blank lines and comments.