All these functions will manipulate character strings to fit your needs. Functions can use into conditional node and populate variable node and keep the result in a variable.

There are 3 groups of functions :

1. Character string functions
2. Mathematics functions
3. Others functions

• ALL string inputs containing alphabetic characters (a-z, A-Z) must be encapsulated with single or double quotes.
  
• If numeric character(s) (0-9) are used in functions that accept strings then the number will be treated as a string.
  
• All functions can be nested (functions within functions).
  

  Usage description : $function(input-1 = "string", input-2 = integer[, optional input-3 = "string"/integer])

* If you want to read and store an entire text file (xml, txt, etc), see "$read" function.

• $left : Get string n-characters from the left side.
• $triml : Trim string n-characters from the left side.

Usages:
$left(input string = “string/%variable%”, number of characters to extract = integer/%i_variable%)
$triml(input string = “string/%variable%”, number of characters to trim = integer/%i_variable%)

• $right : Get string n-characters from the right side.
• $trimr : Trim string n-characters from the right side.

Usages:
$right(input string = “string/%variable%”, number of characters to extract = integer/%i_variable%)
$trimr(input string = “string/%variable%”, number of characters to trim = integer/%i_variable%)

• $middle : Get string n-characters from n-position.
• $between: Get string between two strings.

Usages:
$middle(input string = “string/%variable%”, start position = integer/%i_variable%, number of characters to extract from start position = integer/%i_variable%)
$between(input string = “string/%variable%”, from string = “string/%variable%”, to string = “string/%variable%”[, instance found= integer/%i_variable%])

• $upper : Force string to upper case.
• $lower : Force string to lower case.
• $proper: Capitalizes every first letter following a non-alphanumeric character.

Usages:
$upper(input string = “string/%variable%”)
$lower(input string = “string/%variable%”)
$proper(input string = “string/%variable%”)

• $replace : Replace string in string. If “type” is set to 1 then the string to replace are split into characters.
• $alrep : Replace all non-alphanumeric characters and add optional exceptions.

Usage:
$replace(input string = “string/%variable%”, string to replace = “string/%variable%” [, replace with string = “string/%variable%”, type = 0])
$alrep(input string = “string/%variable%”[, replace with string = “string/%variable%”][, except characters = “string/%variable%”])

• $leads : Add leading character(s) to a string. If string to fill is omitted a zero (0) will be used.
• $trails : Add trailing character(s) to a string. If fill-string is omitted a zero (0) will be used.

Usage:
$leads(input string = “string/%variable%”, total number of output characters = integer/%i_variable%[, string to fill = “string/%variable%”])
$trails(input string = “string/%variable%”, total number of output characters = integer/%i_variable% [, string to fill = “string/%variable%”])

• $stripws : Removes leading and trailing white spaces.
• $stripcrlf : Removes carriage returns and line feeds from string.

Usage:
$stripws(input string = “string/%variable%”)
$stripcrlf(input string = “string/%variable%”)

• $isdigit : Check if string is only numbers. Success returns 1, failure returns 0.
• $isalpha : Check if string is only alphabetic letters. Success returns 1, failure returns 0.

Usage:
$isdigit(input string = “string/%variable%”)
$isalpha(input string = “string/%variable%”)

• $length : List the number of characters.
• $reverse : Reverse a string.

Usage:
$length(input string = “string/%variable%”)
$reverse(input string = “string/%variable%”)

All functions can be nested (functions within functions).