BlockStmt.

equals ('=') introducing an assignment.

'*'.

boolean.

':'.

coma (,) used to break up list of ident.

used only to delimi comparison operators.

the cursor, spelled '.'.

error occurred; value is text of error.

'/'.

alphanumeric identifier not starting with '.'.

used only to delimit the keywords.

'{'.

'('.

'['.

used only to delimit logical operation.

'-'.

null.

simple number.

'+'.

'}'.

')'.

']'.

string, including quotes.

\n to denote end of a line.

item types.

break.

case.

continue.

default.

else.

fallthrough.

fn.

for.

if.

let.

return.

switch.

while.

&& keyword.

!.

|| keyword.

== keyword.

> keyword.

>= keyword.

< keyword.

<= keyword.

!= keyword.

An expression is represented by a tree consisting of one or more of the following concrete expression nodes.

An expression is represented by a tree consisting of one or more of the following concrete expression nodes.

An expression is represented by a tree consisting of one or more of the following concrete expression nodes.

An expression is represented by a tree consisting of one or more of the following concrete expression nodes.

An expression is represented by a tree consisting of one or more of the following concrete expression nodes.

An expression is represented by a tree consisting of one or more of the following concrete expression nodes.

An expression is represented by a tree consisting of one or more of the following concrete expression nodes.

An expression is represented by a tree consisting of one or more of the following concrete expression nodes.

An expression is represented by a tree consisting of one or more of the following concrete expression nodes.

Token represents a token or text string returned from the scanner.

An expression is represented by a tree consisting of one or more of the following concrete expression nodes.

TokenType identifies the type of lex items.