TAL Reference Manual

About This Manual

TAL Reference Manual—526371-001

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Spacing

Where no space is allowed, the notation ns appears in the railroad diagram. Here is an

example of a diagram in which spaces are not allowed:

You can prefix identifiers of standard indirect variables with the standard indirection

symbol (.) with no intervening space.

In all other cases, if no separator—such as a comma, semicolon, or parenthesis—is

shown, separate syntactic items with at least one space.

Case Conventions

Case conventions apply to keywords, variable items (information you supply), and

identifiers. This manual presents these terms in uppercase or lowercase as follows:

Example Diagrams

Some of the examples in this manual include diagrams that illustrate memory

allocation. The diagrams are two bytes wide. Unless otherwise noted, the diagrams

refer to locations in the primary area of the user data segment. The following example

shows allocation of an INT(32) array and its initializing values. In the diagram, solid

lines depict borders of storage units, in this case doublewords. Short lines depict words

within each doubleword:

Term Context Case Example

Keywords In text and in railroad diagrams Uppercase RETURN

Variable Items In railroad diagrams Lowercase file-name

Variable items In text Lowercase italics file-name

Identifiers In examples Lowercase INT total;

Identifiers In text Uppercase TOTAL

VSTAB03.vsd

.int-expression <

left-bit

ns ns ns

: right-bit

ns ns ns