NET/MASTER Network Control Language (NCL) Reference Manual

Concatenation Operator and Expressions

Expressions and Operators

10–18 106126 Tandem Computers Incorporated

Some examples are listed in the following table:

What You Type Result of Concatenation Processing

a b a b

a b c a b c

a || b ab

1234 567 1234 567

1234 || 567 1234567

12344+1 || 567 12345567

12344+1 567 12345 567

Note the preceding final two examples. The plus sign (+) in each case means that the

compiler treats the two terms 12344 and 1 as numbers, the result of addition being

12345. The compiler then performs concatenation.

Blanks within a quoted string are not regarded as a blank operator. Thus the result of

concatenating the following string is a b because the blanks within the quotes are

significant:

"a "||" b"

Blanks are not regarded as a blank operator between the following:

A term and another operator

Two operators

A term and a keyword

An operator and a keyword

Terms are defined at the beginning of this section under “The Composition of

Expressions.” For example, the blanks are not regarded as an operator in the

following expression. The blanks in this context act as lexical element delimiters.

&a + &b - &c

Blanks at the start and end of an expression are not regarded as an operator. For

example, the blanks are not regarded as an operator in the following expression. Once

again, the blanks in this context act as lexical element delimiters.

IF &a = &b THEN …