swExpressionOperator Provides a class to hold parameters for the expression tokenizer and parser.
$label expression term as written by the user
$functionlabel function term used in RPN (starting with :)
$arity unary or binary
$precedence algrebra precedence rules
$associativity only left is used
Methods
- __construct($lbl,$fn,$ar,$pr,$ass)
Properties
- $label
- $functionlabel
- $arity
- $precedence
- $associativity
Used elements
Classes
swExpressionOperator
Globals
$swExpressionOperators
Variables
Short variables: $ar, $ass, $fn, $lbl, $pr