122 lines
3.8 KiB
Plaintext
122 lines
3.8 KiB
Plaintext
/-
|
||
Copyright (c) 2021 Henrik Böving. All rights reserved.
|
||
Released under Apache 2.0 license as described in the file LICENSE.
|
||
Authors: Henrik Böving
|
||
-/
|
||
import Lean
|
||
import Lean.Data.HashMap
|
||
|
||
def Lean.HashSet.fromArray [BEq α] [Hashable α] (xs : Array α) : Lean.HashSet α :=
|
||
xs.foldr (flip .insert) .empty
|
||
|
||
namespace DocGen4
|
||
|
||
open Lean Name
|
||
|
||
def getNLevels (name : Name) (levels: Nat) : Name :=
|
||
let components := name.components'
|
||
(components.drop (components.length - levels)).reverse.foldl (· ++ ·) Name.anonymous
|
||
|
||
inductive Hierarchy where
|
||
| node (name : Name) (isFile : Bool) (children : RBNode Name (λ _ => Hierarchy)) : Hierarchy
|
||
|
||
instance : Inhabited Hierarchy := ⟨Hierarchy.node Name.anonymous false RBNode.leaf⟩
|
||
|
||
abbrev HierarchyMap := RBNode Name (λ _ => Hierarchy)
|
||
|
||
-- Everything in this namespace is adapted from stdlib's RBNode
|
||
namespace HierarchyMap
|
||
|
||
def toList : HierarchyMap → List (Name × Hierarchy)
|
||
| t => t.revFold (fun ps k v => (k, v)::ps) []
|
||
|
||
def toArray : HierarchyMap → Array (Name × Hierarchy)
|
||
| t => t.fold (fun ps k v => ps ++ #[(k, v)] ) #[]
|
||
|
||
def hForIn [Monad m] (t : HierarchyMap) (init : σ) (f : (Name × Hierarchy) → σ → m (ForInStep σ)) : m σ :=
|
||
t.forIn init (fun a b acc => f (a, b) acc)
|
||
|
||
instance : ForIn m HierarchyMap (Name × Hierarchy) where
|
||
forIn := HierarchyMap.hForIn
|
||
|
||
end HierarchyMap
|
||
|
||
namespace Hierarchy
|
||
|
||
def empty (n : Name) (isFile : Bool) : Hierarchy :=
|
||
node n isFile RBNode.leaf
|
||
|
||
def getName : Hierarchy → Name
|
||
| node n _ _ => n
|
||
|
||
def getChildren : Hierarchy → HierarchyMap
|
||
| node _ _ c => c
|
||
|
||
def isFile : Hierarchy → Bool
|
||
| node _ f _ => f
|
||
|
||
partial def insert! (h : Hierarchy) (n : Name) : Hierarchy := Id.run do
|
||
let hn := h.getName
|
||
let mut cs := h.getChildren
|
||
|
||
if getNumParts hn + 1 == getNumParts n then
|
||
match cs.find Name.cmp n with
|
||
| none =>
|
||
node hn h.isFile (cs.insert Name.cmp n <| empty n true)
|
||
| some (node _ true _) => h
|
||
| some (node _ false ccs) =>
|
||
cs := cs.erase Name.cmp n
|
||
node hn h.isFile (cs.insert Name.cmp n <| node n true ccs)
|
||
else
|
||
let leveledName := getNLevels n (getNumParts hn + 1)
|
||
match cs.find Name.cmp leveledName with
|
||
| some nextLevel =>
|
||
cs := cs.erase Name.cmp leveledName
|
||
-- BUG?
|
||
node hn h.isFile <| cs.insert Name.cmp leveledName (nextLevel.insert! n)
|
||
| none =>
|
||
let child := (insert! (empty leveledName false) n)
|
||
node hn h.isFile <| cs.insert Name.cmp leveledName child
|
||
|
||
partial def fromArray (names : Array Name) : Hierarchy :=
|
||
names.foldl insert! (empty anonymous false)
|
||
|
||
def baseDirBlackList : HashSet String :=
|
||
HashSet.fromArray #[
|
||
"404.html",
|
||
"declaration-data.js",
|
||
"declarations",
|
||
"find",
|
||
"how-about.js",
|
||
"index.html",
|
||
"mathjax-config.js",
|
||
"navbar.html",
|
||
"nav.js",
|
||
"search.js",
|
||
"src",
|
||
"style.css"
|
||
]
|
||
|
||
partial def fromDirectoryAux (dir : System.FilePath) (previous : Name) : IO (Array Name) := do
|
||
let mut children := #[]
|
||
for entry in ←System.FilePath.readDir dir do
|
||
if (←entry.path.isDir) then
|
||
children := children ++ (←fromDirectoryAux entry.path (.str previous entry.fileName))
|
||
else if entry.path.extension = some "html" then
|
||
children := children.push <| .str previous (entry.fileName.dropRight ".html".length)
|
||
pure children
|
||
|
||
def fromDirectory (dir : System.FilePath) : IO Hierarchy := do
|
||
let mut children := #[]
|
||
for entry in ←System.FilePath.readDir dir do
|
||
if baseDirBlackList.contains entry.fileName then
|
||
continue
|
||
else if ←entry.path.isDir then
|
||
children := children ++ (←fromDirectoryAux entry.path (.mkSimple entry.fileName))
|
||
else if entry.path.extension = some "html" then
|
||
children := children.push <| .mkSimple (entry.fileName.dropRight ".html".length)
|
||
pure <| Hierarchy.fromArray children
|
||
|
||
end Hierarchy
|
||
end DocGen4
|