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substring() Operation

Extracts a substring of a given length beginning at the given position.

Syntax

set aSubstring = aString.substring(startIndex, length)
set aSubstring = substring(LITERAL, startIndex, length)

Semantics

Extracts a substring of a given length beginning at position startIndex. Returns a new string. The state of the current string is not changed. If length is greater than the length of aString, an error is raised.

Substitutables

aString

Can be any variable or object attribute having the type String.  

startIndex, length

Can be any variable or object attribute having the type Integer. The start index cannot be negative.

LITERAL

String literal.

Examples

 
set aSubstring = s1.substring(0, 2);

// To get the last 5 characters of a string
set endOfString = astring.substring(aString.stringLength()-5, 5);

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