VARKON Version 1.15 1997-10-24

substr - Function

Extracts a part of a string


Description

Creates a substring by copying one or more characters from another string.

Syntax

substr(str, start, count)

STRING	str*132;
INT	start;
INT	count;

Principal parameters

str	- The original string
start	- Position of first character to copy, 1<= start <=132

Optional parameters

count

- Number of characters to copy, default is the rest of the string

Return value

A new STRING.

Examples

substr("ABCDE",2,3) = "BCD"

substr("ABCDE",4,1)" = "D"

substr("ABCDE",3) = "CDE"

substr("ABCDE",1) = "ABCDE"