Fillable Lecture 13 notes - cs wmich

Goals of the parser, given an input program: Find all syntax errors; for each, produce an appropriate diagnostic message, and recover quickly Produce the parse tree, or at least a trace of the parse tree, for the program The Parsing Problem (cont.) Two categories of parsers Top down - produce the parse tree, beginning at the root Order is that of a leftmost derivation Traces or builds the parse tree in preorder...
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