$str.substring
Extract a part of the string
Syntax:
$str.substring( string, beginIndex ) $str.substring( string, beginIndex, endIndex )
Parameters:
beginIndex – where to start the extraction
endIndex – where to end the extraction
Returns:
the specified string.
Version Since:
1.0
Where the function can be used:
- Preliminary rules
- Regular rules
Example:
$str.substring( “sip:user@domain”, 4 )= (.+)
Get “user@domain”
$str.substring( “sip:user@domain”, 4, 8 )= (.+)
Get “user”