Program1Parse1 - import import import import import import...

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import components.map.Map; import components.program.Program; import components.program.Program1; import components.queue.Queue; import components.simplereader.SimpleReader; import components.simplereader.SimpleReader1L; import components.simplewriter.SimpleWriter; import components.simplewriter.SimpleWriter1L; import components.statement.Statement; import components.utilities.Reporter; import components.utilities.Tokenizer; /** * Layered implementation of secondary method {@code parse} for {@code Program}. * * @author --- */ public final class Program1Parse1 extends Program1 { /* * Private members -------------------------------------------------------- */ /** * Parses a single BL instruction from {@code tokens} returning the * instruction name as the value of the function and the body of the * instruction in {@code body}. * * @param tokens * the input tokens * @param body * the instruction body * @return the instruction name * @replaces body * @updates tokens * @requires [<"INSTRUCTION"> is a proper prefix of tokens] * @ensures * * <pre> * if [an instruction string is a proper prefix of #tokens] then * parseInstruction = [name of instruction at start of #tokens] and * body = [Statement corresponding to statement string of body of * instruction at start of #tokens] and
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