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| • | Syntax |
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| – | concerned with
the structure of a program |
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| – | consider at both
Lexical level |
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| • | stream of
characters into tokens |
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| – | and Phrase level |
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| • | stream of tokens
into phrases |
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| • | Semantic |
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| – | concerned with
the meaning of a program |
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| • | Sets of rules
to cover both areas |
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