COBOL Manual for TNS and TNS/R Programs
About This Manual
HP COBOL Manual for TNS and TNS/R Programs—522555-006
lxvi
Syntax Diagram Conventions
Syntax Diagram Conventions
This manual presents syntax in railroad diagrams. Here is a generic railroad diagram:
To use a railroad diagram, follow the direction of the arrows and specify syntactic items 
as indicated by the diagram pieces: 
Diagram Piece Meaning
Type KEYWORD as shown. You can type letters in uppercase or 
lowercase.
Replace item with a value that fits its description, which follows the 
syntax diagram.
Type content (punctuation mark, symbol, or letter) as shown. You can 
type a letter in uppercase or lowercase.
«item» The 1985 COBOL standard classifies item as obsolete, so you are 
advised not to use it. (An obsolete keyword is marked the same way; 
that is, «KEYWORD».)
item3
,
KEYWORD item1
item2 item4
«item5»
VST406.vsd
VST412.vsd
KEYWORD
item
VST413.vsd
,
VST414.vsd










