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A typesetting that shows whitespace for help debugging

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This commit is contained in:
Timothy Clem 2018-08-28 10:32:43 -07:00
parent a923fb0938
commit 071d91f494
1 changed files with 14 additions and 0 deletions
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src/Reprinting/Typeset.hs
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@ -1,6 +1,7 @@
module Reprinting.Typeset
( typeset
, typesetting
, typesettingWithVisualWhitespace
) where
import Prologue
@ -24,3 +25,16 @@ step (Layout (Indent 0 Spaces)) = mempty
step (Layout (Indent n Spaces)) = stimes n space
step (Layout (Indent 0 Tabs)) = mempty
step (Layout (Indent n Tabs)) = stimes n "\t"
-- | Typeset, but show whitespace with printable characters for debugging purposes.
typesettingWithVisualWhitespace :: Monad m => ProcessT m Splice (Doc a)
typesettingWithVisualWhitespace = auto step where
step :: Splice -> Doc a
step (Emit t) = pretty t
step (Layout SoftWrap) = softline
step (Layout HardWrap) = "\\n" <> hardline
step (Layout Space) = "."
step (Layout (Indent 0 Spaces)) = mempty
step (Layout (Indent n Spaces)) = stimes n "."
step (Layout (Indent 0 Tabs)) = mempty
step (Layout (Indent n Tabs)) = stimes n "\t"