pTAL Reference Manual (H06.08+)

About This Manual
HP pTAL Reference Manual—523746-006
xxxviii
Syntax Diagram Conventions
To use a railroad diagram, follow the direction of the arrows and specify syntactic items
as indicated by the diagram pieces:
Some examples of the meanings of simple diagrams are:
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.
Diagram Piece Meaning
Choose item1 or item2.
Choose item1, item2, or neither.
Specify item one or more times, separating occurrences
with commas.
Specify item at most n times.
Note. To refer to a particular railroad diagram or figure when giving feedback to HP, use the
number at the bottom right corner of that railroad diagram or figure (for example, VST742.vsd).
VST412.vsd
KEYWORD
item
VST413.vsd
,
VST414.vsd
VST407.vsd
item2
item1
VST408.vsd
item1
item2
item
,
VST409.vsd
item
n
VST742.vsd