complete --command comp --no-files --arguments '/d\t"Display differences in decimal format"
/a\t"Display differences as characters"
/l\t"Displays the number of the line where a difference occurs, instead of displaying the byte offset"
/n=\t"Compare only the number of lines that are specified for each file, even if the files are different sizes"
/c\t"Perform a comparison that is not case-sensitive"
/off\t"Process files with the offline attribute set"
/offline\t"Process files with the offline attribute set"
/?\t"Show help"'