String functions

toString($expression)

String representation of the expression.

replace($original, $search, $replacement)

Replace all occurrences of search with replacement. All arguments must be expressions.

substring($original, $begin, $subLength)

Get part of a string. The subLength argument is optional.

left($original, $subLength),
  right($original, $subLength)

The first part of a string. The last part of the string.

trim($original), lTrim($original),
  rTrim($original)

Trim all whitespace, or on the left or right side.

toUpper($original), toLower($original)

UPPERCASE and lowercase.

split($original, $delimiter)

Split a string into a list of strings.

reverse($original)

Reverse a string.

size($string)

Calculate the number of characters in the string.