src/lib/sounds.ml


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module type T = sig

  type t
  val muted : t -> t

  val a : [`Closed | `Opened] -> t
  val e : [`Closed | `Opened] -> t
  val eu : [`Closed | `Opened] -> t

  val o : [`Closed | `Opened] -> t
  val schwa : unit -> t
  val i : [`Closed | `Opened] -> t
  val u : t


  val nasal: t -> t

  val none: t

  val p: t
  val b: t
  val t: t
  val d: t
  val k: t
  val f: t
  val s: unit -> t
  val sz: unit -> t
  val ch: unit -> t
  val z: unit -> t

  val n: t
  val m: t

  val r: unit -> t
  val l: unit -> t

  val semi_voyel_w: t

  val is_voyel : t -> bool
  val is_nasal : t -> bool

  type code =
    | None
    | SZ
    | Voyel_A
    | Voyel_O

  val code : t -> code

end

module T = struct
  type kind =
    | None
    | Voyel

  type code =
    | None
    | SZ
    | Voyel_A
    | Voyel_O

  type t =
    { code : code
    ; repr : string
    ; muted : bool
    ; kind : kind
    ; nasal : bool
    }

end

module Repr = struct

  let a = "a"
  and a_nasal = "@"

  and o = "o"
  and o_nasal = "§"

  and i = "i"
  and u = "y"

  and p = "p"
  and b = "b"
  and t = "t"
  and d = "d"

  and k = "k"
  and g = "g"

  and f = "f"

  and ch = "S"

  and s = "s"
  and z = "z"

  and m = "m"
  and n = "n"

  and l = "L"
  and r = "R"

  and w = "w"
end

module S = struct

  include T

  let is_voyel t = t.kind = Voyel
  let is_nasal t = t.nasal

  let none =
    { repr = ""
    ; muted = false
    ; kind = None
    ; nasal = false
    ; code = None }

  let voyel =
    { none with kind = Voyel }

  let code t = t.code

  let nasal t =
    match t.code with
    | Voyel_A -> { t with repr = Repr.a_nasal ; nasal = true }
    | Voyel_O -> { t with repr = Repr.o_nasal ; nasal = true }
    | _ -> t

  let muted f =
    { none with
      repr = "(" ^ f.repr ^ ")"
    ; muted = true }

  let a _ =
    { voyel with repr = Repr.a ; code = Voyel_A }

  let e = function
    | `Closed -> { voyel with repr = "e" }
    | `Opened -> { voyel with repr = "E" }

  let eu = function
    | `Closed -> { voyel with repr = "2" }
    | `Opened -> { voyel with repr = "9" }


  let schwa () =
    { voyel with repr = "°" }

  let o _ =
    { voyel with repr = Repr.o ; code = Voyel_O }

  let i _ =
    { voyel with repr = Repr.i }

  let u =
    { voyel with repr = Repr.u }

  let p =
    { none with repr = Repr.p }

  let b =
    { none with repr = Repr.b }

  let t =
    { none with repr = Repr.t }

  let d =
    { none with repr = Repr.d }

  let k =
    { none with repr = Repr.k }

  let f =
    { none with repr = Repr.f }

  let s () =
    { none with repr = Repr.s }

  let sz () =
    { (s()) with code = SZ }

  let ch () =
    { none with repr = Repr.ch }

  let z () =
    { none with repr = Repr.z }

  let n =
    { none with repr = Repr.n ; nasal = true }

  let m =
    { none with repr = Repr.m ; nasal = true }

  let l () =
    { none with repr = Repr.l }

  let r () =
    { none with repr = Repr.r }

  let semi_voyel_w =
    { none with repr = Repr.w }
end

include S