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-(* The shallow abstract syntax *)
-
-type location =
- Location of int * int
-
-type regular_expression =
- Epsilon
- | Characters of char list
- | Sequence of regular_expression * regular_expression
- | Alternative of regular_expression * regular_expression
- | Repetition of regular_expression
-
-type lexer_definition =
- Lexdef of location * (string * (regular_expression * location) list) list
-
-(* Representation of automata *)
-
-type automata =
- Perform of int
- | Shift of automata_trans * automata_move array
-and automata_trans =
- No_remember
- | Remember of int
-and automata_move =
- Backtrack
- | Goto of int