substr()

Return a specified portion of a string of characters.

Syntax

substr(text,start,length)

Parameter

Parameter	Definition
text	text from which a substring is to be returned The text can be a text string enclosed in double quotation marks, or one or more PSL commands that produce text as output.
start	character position within text that is to be the first character of the substring The first character in text is character position 1.
length	total number of characters returned from text

Description

The substr() function returns the substring of text of length characters that starts at position start.

Example

The following is an example of the substr() function:

any_string = "The quick red fox jumped over the lazy brown dogs";
len = length(any_string);
i = 0;
while (i++ <= len){
printf("%s\n",substr(any_string,i,1));
}