17 lines
464 B
Text
17 lines
464 B
Text
/-
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Copyright (c) 2020 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Authors: Leonardo de Moura
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-/
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import Lean.Data.Format
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namespace Lean
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syntax:max "f!" (interpolatedStr term) : term
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macro_rules
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| `(f! $interpStr) => do
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let chunks := interpStr.getArgs
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let r ← Lean.Syntax.expandInterpolatedStrChunks chunks (fun a b => `($a ++ $b)) (fun a => `(fmt $a))
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`(($r : Format))
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end Lean
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