A debugging line is any line with a "D" or "d" in the indicator area of the line. Any debugging line that consists solely of spaces from margin A to margin R is considered the same as a blank line.
The contents of a debugging line must be such that a syntactically correct program is formed with or without the debugging lines being considered as comment lines.
A debugging line will be considered to have all the characteristics of a comment line, if the WITH DEBUGGING MODE clause is not specified in the SOURCE-COMPUTER paragraph.
Successive debugging lines are allowed. Continuation of debugging lines is permitted, except that each continuation line must contain a "D" or "d" in the indicator area, and character-strings can not be broken across two lines.
A debugging line is permitted in the program only after theOBJECT-COMPUTER paragraph .