40 lines
1.5 KiB
OCaml
40 lines
1.5 KiB
OCaml
(***********************************************************************)
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(* *)
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(* OCaml *)
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(* *)
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(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
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(* *)
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(* Copyright 1996 Institut National de Recherche en Informatique et *)
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(* en Automatique. All rights reserved. This file is distributed *)
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(* under the terms of the Q Public License version 1.0. *)
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(* *)
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(***********************************************************************)
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(* The shallow abstract syntax *)
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type location =
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{ start_pos: int;
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end_pos: int;
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start_line: int;
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start_col: int }
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type regular_expression =
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Epsilon
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| Characters of Cset.t
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| Eof
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| Sequence of regular_expression * regular_expression
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| Alternative of regular_expression * regular_expression
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| Repetition of regular_expression
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| Bind of regular_expression * (string * location)
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type ('arg,'action) entry =
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{name:string ;
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shortest : bool ;
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args : 'arg ;
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clauses : (regular_expression * 'action) list}
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type lexer_definition =
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{ header: location;
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entrypoints: ((string list, location) entry) list;
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trailer: location }
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