Expression Node Syntax

The following summary of the Expression Node syntax uses Backus-Naur Form (BNF notation).

<expr> : = <expr> <binaryoperator> <expr>

| <unaryoperator> <expr>

| <expr> ? <expr> : <expr>

| ( <expr>)

| <identifier>

| <const>

| <function> ( <arglist> )

<binaryoperator>:= + | - | * | / | ^ | != | == | > | < | >= | <= | && | || | & | | | ^ | **

<unaryoperator>: = + | - | ! | ~

Note To include optional items in the Expression Node syntax, use square brackets to enclose the items.