Package com.singularsys.jep.functions.strings

package com.singularsys.jep.functions.strings

String functions.

The string functions can be simply included by using the jep.setComponent(new StringFunctionSet());. This will add the following functions to jep

• concat(str1,str2,...): Concatenates string
• left(str,len): returns the left most len characters from a string
• right(str,len): returns the right most characters from a string
• mid(str,start,len): returns the middle of a string
• substr(str,start,end): returns a substring of a string
• len(str): returns the length of a string
• lower(str): converts a string to lower-case
• upper(str): converts a string to upper-case
• trim(str): removes leading and trailing whitespace

Related Packages

Package	Description
com.singularsys.jep.functions	Classes that implement the built-in functions and operators.

Classes

Class	Description
Concat	Concatenates string arguments.
Left	Extract the left most n characters from a string: left("abcdefg",2) -> "ab" If n is greater than the length of the string return the full string. If n is less than zero an EvaluationException is thrown. If the first argument is not a string an EvaluationException is thrown. If the second argument is not a number representing an integer an EvaluationException is thrown.
Length	Returns the length of a string: len("hello") -> 5
LowerCase	Convert a string to lowercase
Mid	Extract substring of first argument: mid("abcdefg",2,3) -> "cde" Syntax: mid(str,start,len) Second argument is starting index, with the first character being at index 0.
Right	Extract the right most n characters from a string: right("abcdefg",2) -> "fg".
Substring	Extract substring of first argument: substring("abcdefg",2,4) -> "cd".
Trim	Trims leading and trailing whitespace
UpperCase	Convert a string to uppercase