22 lines
539 B
Plaintext
22 lines
539 B
Plaintext
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import Lean
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namespace DocGen4
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open Lean System IO Lean.Elab.Term
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syntax (name := includeStr) "include_str" str : term
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@[termElab includeStr] def includeStrImpl : TermElab := λ stx expectedType? => do
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let str := stx[1].isStrLit?.get!
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let path := FilePath.mk str
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if ←path.pathExists then
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if ←path.isDir then
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throwError s!"{str} is a directory"
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else
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let content ← FS.readFile path
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return mkStrLit content
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else
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throwError s!"\"{str}\" does not exist as a file"
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end DocGen4
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