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(* $Id: unimap.ml,v 1.12 2003/12/19 17:24:34 yori Exp $ *)
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(* Copyright 2002 Yamagata Yoriyuki *)
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type mapping = {no_char : int; tbl : Tbl31.Bytes.t}
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let read_map map i = Tbl31.Bytes.get map.tbl i
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type mapping_rw = {rw_no_char : int; mutable rw_tbl : int IMap.t}
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let create_mapping_rw no_char =
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{rw_no_char = no_char;
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let mapping_rw_to_ro rw =
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{no_char = rw.rw_no_char;
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tbl = Tbl31.Bytes.of_map rw.rw_no_char rw.rw_tbl}
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let add_mapping map i n = map.rw_tbl <- IMap.add i n map.rw_tbl
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type t = {enc_to_ucs : mapping; ucs_to_enc : mapping}
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type rw = {rw_enc_to_ucs : mapping_rw; rw_ucs_to_enc : mapping_rw}
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let create_rw unused_enc unused_ucs =
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{rw_enc_to_ucs = create_mapping_rw unused_ucs;
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rw_ucs_to_enc = create_mapping_rw unused_enc}
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add_mapping map.rw_enc_to_ucs enc ucs;
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add_mapping map.rw_ucs_to_enc ucs enc
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{enc_to_ucs = mapping_rw_to_ro map.rw_enc_to_ucs;
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ucs_to_enc = mapping_rw_to_ro map.rw_ucs_to_enc}
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let no_char_ucs map = map.enc_to_ucs.no_char
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let no_char_enc map = map.ucs_to_enc.no_char
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let enc_to_ucs map enc = read_map map.enc_to_ucs enc
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let ucs_to_enc map ucs = read_map map.ucs_to_enc ucs
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let loaded = Hashtbl.create 0
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let b = Hashtbl.find loaded name in
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match Weak.get b 0 with
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Hashtbl.remove loaded name;
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let filename = Filename.concat Camomileconfig.unimapdir (name^".mar") in
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let c = try open_in_bin filename with Sys_error _ -> raise Not_found in
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let map : t = input_value c in
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let b = Weak.create 1 in
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Weak.set b 0 (Some map);
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Hashtbl.add loaded name b;
added
removed
internal/unimap.ml
