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Scanner
implements the actions necessary to extract the Token
out of the source code. sc
and an ErrorHandler
e
.
SimpleToken
implements a keyword or an operation found in
the source code. SimpleToken
with a kind k
.
Selector -> {("." ident)|("[" Expression "]")}
Token
.
IdentToken
.
NumberToken
.
SimpleExpression -> ["+"|"-"] Term {("+"|"-"|"OR") Term}
Statement -> [(ident(Assignment|ProcedureCall))
|IfStatement
|WhileStatement
|RepeatStatement]
StatementSequence -> Statement {";" Statement}
SimpleToken
.
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