To process the transformation-source node values and map them to the transformation-destination node, you use functions. This section explains the various functions to be used for various cases. For details about how to use a function for mapping, see 6.4.2 Processing the Transformation-source Node Values and Mapping Them to the Transformation-destination Node.

The following table lists the functions.

Table 6-3 List of functions

Classification	Function name	Explanation
String--based	Concatenate	Concatenates multiple strings.
	Acquire substring	Extracts a substring from a string.
	Acquire string length	Assigns a string character count to a mapping destination.
	Check string	Verifies that the specified string is contained in a string or that the string begins with the specified string, and assigns the logical value to a mapping destination.
	Trim node	Removes the leading and trailing spaces from a string. Also replaces consecutive spaces between strings with a single space.
Number--based	Convert number format	Converts the number format.
	Perform node operation	Computes (+, --, *, div, or mod) numbers.
	Round node	Rounds decimal digits (round off, round down, or round up).
	Sum up nodes	Sums up the node numbers of multiple node sets.
Bit operations	NOT operation	Execute NOT operation.
	Logical operation	Executes logical operation (AND, OR, XOR).
	Shift operation	Executes shift operation.
Node--based	Acquire node count	Assigns a node count to a mapping destination.
	Acquire node name	Assigns a node name to a mapping destination.
	Check node	Verifies that the specified transformation-source node exists and assigns the logical value to a mapping destination.
Control--based	Loop node	Maps looping.
	Choose node	Outputs different values according to conditions.
Other	Set constant	Assigns a specified value to a mapping destination.
	Replace value	Converts the mapping source value based on the specification of the conversion table and assigns value to the mapping destination.
	Radix Conversion	Executes basic transformation.
	Custom	Invoke a Java program created by the user.

Organization of this section

6.5.1 Concatenating Multiple Strings

6.5.2 Extracting a Substring from a String

6.5.3 Assigning a String Character Count

6.5.4 Verifying That the Specified String Is Present or That the String Begins with the Specified String

6.5.5 Removing Spaces from a String

6.5.6 Converting the Number Format

6.5.7 Computing Numbers

6.5.8 Rounding Decimal Digits

6.5.9 Summing Up the Node Numbers of Multiple Node Sets

6.5.10 Using NOT operation

6.5.11 Using logical operation

6.5.12 Using shift operation

6.5.13 Assigning a Node Count

6.5.14 Assigning a Node Name

6.5.15 Verifying That a Node Exists

6.5.16 Mapping Looping

6.5.17 Outputting Different Values According to Conditions

6.5.18 Assigning a Specified Value

6.5.19 Converting a Value with the Conversion Table

6.5.20 Performing basic number transformation

6.5.21 Assigning a Value to a Transformation-source Node Value

6.5.22 Doubling a Transformation-source Node Value

6.5.23 Invoke a Java program created by the user