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26 lines
551 B
Standard ML
26 lines
551 B
Standard ML
(*===----------------------------------------------------------------------===
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* Lexer Tokens
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*===----------------------------------------------------------------------===*)
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(* The lexer returns these 'Kwd' if it is an unknown character, otherwise one of
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* these others for known things. *)
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type token =
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(* commands *)
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| Def | Extern
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(* primary *)
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| Ident of string | Number of float
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(* unknown *)
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| Kwd of char
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(* control *)
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| If | Then | Else
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| For | In
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(* operators *)
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| Binary | Unary
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(* var definition *)
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| Var
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