17 lines
484 B
Text
17 lines
484 B
Text
#lang lean4
|
|
/-
|
|
Copyright (c) 2020 Microsoft Corporation. All rights reserved.
|
|
Released under Apache 2.0 license as described in the file LICENSE.
|
|
Author: Leonardo de Moura
|
|
-/
|
|
prelude
|
|
import Init.LeanInit
|
|
import Init.Data.ToString.Basic
|
|
|
|
syntax:max "s!" (interpolatedStr term) : term
|
|
|
|
macro_rules
|
|
| `(s! $interpStr) => do
|
|
let chunks := interpStr.getArgs
|
|
let r ← Lean.Syntax.expandInterpolatedStrChunks chunks (fun a b => `($a ++ $b)) (fun a => `(toString $a))
|
|
`(($r : String))
|