lean4-htt/src/Lean/DocString.lean
2025-07-25 12:02:51 +00:00

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/-
Copyright (c) 2021 Microsoft Corporation. All rights reserved.
Released under Apache 2.0 license as described in the file LICENSE.
Authors: Leonardo de Moura
-/
module
prelude
public import Lean.DocString.Extension
public import Lean.DocString.Links
public import Lean.Parser.Tactic.Doc
public import Lean.Parser.Term.Doc
public section
set_option linter.missingDocs true
-- This module contains the main query interface for docstrings, which assembles user-visible
-- docstrings.
-- The module `Lean.DocString.Extension` contains the underlying data.
namespace Lean
open Lean.Parser.Tactic.Doc
open Lean.Parser.Term.Doc
/--
Finds the docstring for a name, taking tactic alternate forms and documentation extensions into
account.
Use `Lean.findSimpleDocString?` to look up the raw docstring without resolving alternate forms or
including extensions.
-/
def findDocString? (env : Environment) (declName : Name) (includeBuiltin := true) : IO (Option String) := do
let declName := alternativeOfTactic env declName |>.getD declName
let exts := getTacticExtensionString env declName
let spellings := getRecommendedSpellingString env declName
let str := (← findSimpleDocString? env declName (includeBuiltin := includeBuiltin)).map (· ++ exts ++ spellings)
str.mapM (rewriteManualLinks ·)