Rename the module [Number] to [GraphNumbering].

CHANGES.md

@@ -9,10 +9,13 @@
   which not only returns a memoized function,
   but also provides outside access to the memoization table.
 
-* New signature `ONGOING_NUMBERING`
+* New signatures `ONGOING_NUMBERING` and `TWO_PHASE_NUMBERING`
   and new module `Numbering`,
   which provides facilities for numbering things.
 
+* Breaking change: the module `Fix.Number`
+  is renamed `Fix.GraphNumbering`.
+
 ## 2018/11/30
 
 * New release, including new modules (`Gensym`, `Memoize`,

README.md

@@ -25,13 +25,13 @@ This gives you access to the following submodules:
   at every point in its domain, so as to obtain an equivalent
   function that can be queried in constant time.
 
-* [`Number`](src/Number.mli) offers a facility for
-  **discovering and numbering the reachable vertices** in a directed graph.
-
 * [`Numbering`](src/Numbering.mli) offers a facility for
   **assigning a unique number** to each value in a certain finite set
   and translating (both ways) between values and their numbers.
 
+* [`GraphNumbering`](src/GraphNumbering.mli) offers a facility for
+  **discovering and numbering the reachable vertices** in a finite directed graph.
+
 * [`HashCons`](src/HashCons.mli) offers support for
   **setting up a hash-consed data type**, that is, a data type whose
   values carry unique integer identifiers.

demos/brz/Brzozowski.ml

@@ -430,7 +430,7 @@ let dfa (e : regexp) : dfa =
     let foreach_root yield =
       if nonempty e then yield e
   end in
-  let module N = Number.ForHashedType(R)(G) in
+  let module N = GraphNumbering.ForHashedType(R)(G) in
   (* We have [n] states which are mapped to nonempty expressions by [decode]. *)
   let n, decode = N.n, N.decode in
   (* A nonempty expression is represented by a state,

src/Fix.ml

@@ -23,13 +23,13 @@ include Sigs
    declared [open Fix], then she can use [Glue], [Memoize], etc. If she
    hasn't, then she must use [Fix.Glue], [Fix.Memoize], etc. *)
 
-module Glue      = Glue
-module Memoize   = Memoize
-module Number    = Number
-module Numbering = Numbering
-module Tabulate  = Tabulate
-module Gensym    = Gensym
-module HashCons  = HashCons
+module Glue           = Glue
+module Memoize        = Memoize
+module Numbering      = Numbering
+module GraphNumbering = GraphNumbering
+module Tabulate       = Tabulate
+module Gensym         = Gensym
+module HashCons       = HashCons
 
 module Prop = struct
   (* A number of ready-made implementations of the signature [PROPERTY]. *)