310 lines
8.3 KiB
Idris
310 lines
8.3 KiB
Idris
module Quox.Pretty
|
||
|
||
import Quox.Loc
|
||
import Quox.Name
|
||
|
||
import public Text.PrettyPrint.Bernardy
|
||
import public Text.PrettyPrint.Bernardy.Core.Decorate
|
||
import public Quox.EffExtra
|
||
import public Data.String
|
||
import Control.ANSI.SGR
|
||
|
||
import Data.DPair
|
||
import Data.SnocList
|
||
import Derive.Prelude
|
||
|
||
%default total
|
||
%language ElabReflection
|
||
|
||
%hide TT.Name
|
||
|
||
|
||
public export
|
||
data PPrec
|
||
= Outer
|
||
| Times -- "_ × _"
|
||
| InTimes -- arguments of ×
|
||
| W -- "_ ⊲ _"
|
||
| InW -- arguments of ⊲
|
||
| AnnL -- left of "∷"
|
||
| Eq -- "_ ≡ _ : _"
|
||
| InEq -- arguments of ≡
|
||
| Sup -- "_ ⋄ _"
|
||
| InSup -- arguments of ⋄
|
||
-- ...
|
||
| App -- term/dimension application
|
||
| Arg -- argument to nonfix function
|
||
%runElab derive "PPrec" [Eq, Ord, Show]
|
||
|
||
|
||
public export
|
||
data HL
|
||
= Delim
|
||
| Free | TVar | TVarErr
|
||
| Dim | DVar | DVarErr
|
||
| Qty | Universe
|
||
| Syntax
|
||
| Tag
|
||
%runElab derive "HL" [Eq, Ord, Show]
|
||
|
||
|
||
public export
|
||
data Flavor = Unicode | Ascii
|
||
%runElab derive "Flavor" [Eq, Ord, Show]
|
||
|
||
export %inline
|
||
noHighlight : HL -> Highlight
|
||
noHighlight _ = MkHighlight "" ""
|
||
|
||
|
||
public export
|
||
data EffTag = PREC | FLAVOR | HIGHLIGHT | INDENT
|
||
|
||
public export
|
||
Pretty : List (Type -> Type)
|
||
Pretty = [StateL PREC PPrec, ReaderL FLAVOR Flavor,
|
||
ReaderL HIGHLIGHT (HL -> Highlight), ReaderL INDENT Nat]
|
||
|
||
export %inline
|
||
runPrettyWith : PPrec -> Flavor -> (HL -> Highlight) -> Nat ->
|
||
Eff Pretty a -> a
|
||
runPrettyWith prec flavor highlight indent act =
|
||
extract $
|
||
evalStateAt PREC prec $
|
||
runReaderAt FLAVOR flavor $
|
||
runReaderAt HIGHLIGHT highlight $
|
||
runReaderAt INDENT indent act
|
||
|
||
|
||
export %inline
|
||
toSGR : HL -> List SGR
|
||
toSGR Delim = []
|
||
toSGR Free = [SetForeground BrightBlue]
|
||
toSGR TVar = [SetForeground BrightYellow]
|
||
toSGR TVarErr = [SetForeground BrightYellow, SetStyle SingleUnderline]
|
||
toSGR Dim = [SetForeground BrightGreen]
|
||
toSGR DVar = [SetForeground BrightGreen]
|
||
toSGR DVarErr = [SetForeground BrightGreen, SetStyle SingleUnderline]
|
||
toSGR Qty = [SetForeground BrightMagenta]
|
||
toSGR Universe = [SetForeground BrightRed]
|
||
toSGR Syntax = [SetForeground BrightCyan]
|
||
toSGR Tag = [SetForeground BrightRed]
|
||
|
||
export %inline
|
||
highlightSGR : HL -> Highlight
|
||
highlightSGR h = MkHighlight (escapeSGR $ toSGR h) (escapeSGR [Reset])
|
||
|
||
|
||
export %inline
|
||
runPretty : Eff Pretty a -> a
|
||
runPretty = runPrettyWith Outer Unicode noHighlight 2
|
||
|
||
export %inline
|
||
runPrettyColor : Eff Pretty a -> a
|
||
runPrettyColor = runPrettyWith Outer Unicode highlightSGR 2
|
||
|
||
|
||
export %inline
|
||
hl : {opts : _} -> HL -> Doc opts -> Eff Pretty (Doc opts)
|
||
hl h doc = asksAt HIGHLIGHT $ \f => decorate (f h) doc
|
||
|
||
|
||
export %inline
|
||
indentD : {opts : _} -> Doc opts -> Eff Pretty (Doc opts)
|
||
indentD doc = pure $ indent !(askAt INDENT) doc
|
||
|
||
export %inline
|
||
hangD : {opts : _} -> Doc opts -> Doc opts -> Eff Pretty (Doc opts)
|
||
hangD d1 d2 = pure $ hangSep !(askAt INDENT) d1 d2
|
||
|
||
export %inline
|
||
hangDSingle : {opts : _} -> Doc opts -> Doc opts -> Eff Pretty (Doc opts)
|
||
hangDSingle d1 d2 =
|
||
pure $ ifMultiline (d1 <++> d2) (vappend d1 !(indentD d2))
|
||
|
||
|
||
export
|
||
tightDelims : {opts : _} -> (l, r : String) -> (inner : Doc opts) ->
|
||
Eff Pretty (Doc opts)
|
||
tightDelims l r inner = do
|
||
l <- hl Delim $ text l
|
||
r <- hl Delim $ text r
|
||
pure $ hcat [l, inner, r]
|
||
|
||
export
|
||
looseDelims : {opts : _} -> (l, r : String) -> (inner : Doc opts) ->
|
||
Eff Pretty (Doc opts)
|
||
looseDelims l r inner = do
|
||
l <- hl Delim $ text l
|
||
r <- hl Delim $ text r
|
||
let short = hsep [l, inner, r]
|
||
long = vsep [l, !(indentD inner), r]
|
||
pure $ ifMultiline short long
|
||
|
||
export %inline
|
||
parens : {opts : _} -> Doc opts -> Eff Pretty (Doc opts)
|
||
parens = tightDelims "(" ")"
|
||
|
||
export %inline
|
||
bracks : {opts : _} -> Doc opts -> Eff Pretty (Doc opts)
|
||
bracks = tightDelims "[" "]"
|
||
|
||
export %inline
|
||
braces : {opts : _} -> Doc opts -> Eff Pretty (Doc opts)
|
||
braces = looseDelims "{" "}"
|
||
|
||
export %inline
|
||
tightBraces : {opts : _} -> Doc opts -> Eff Pretty (Doc opts)
|
||
tightBraces = tightDelims "{" "}"
|
||
|
||
export %inline
|
||
parensIf : {opts : _} -> Bool -> Doc opts -> Eff Pretty (Doc opts)
|
||
parensIf True = parens
|
||
parensIf False = pure
|
||
|
||
|
||
||| uses hsep only if the whole list fits on one line
|
||
export
|
||
sepSingle : {opts : _} -> List (Doc opts) -> Doc opts
|
||
sepSingle xs = ifMultiline (hsep xs) (vsep xs)
|
||
|
||
export
|
||
fillSep : {opts : _} -> List (Doc opts) -> Doc opts
|
||
fillSep [] = empty
|
||
fillSep (x :: xs) = foldl (\x, y => sep [x, y]) x xs
|
||
|
||
export
|
||
exceptLast : {opts : _} -> (Doc opts -> Doc opts) ->
|
||
List (Doc opts) -> List (Doc opts)
|
||
exceptLast f [] = []
|
||
exceptLast f [x] = [x]
|
||
exceptLast f (x :: xs) = f x :: exceptLast f xs
|
||
|
||
parameters {opts : LayoutOpts} {auto _ : Foldable t}
|
||
export
|
||
separateLoose : Doc opts -> t (Doc opts) -> Doc opts
|
||
separateLoose d = sep . exceptLast (<++> d) . toList
|
||
|
||
export
|
||
separateTight : Doc opts -> t (Doc opts) -> Doc opts
|
||
separateTight d = sep . exceptLast (<+> d) . toList
|
||
|
||
export
|
||
fillSeparateTight : Doc opts -> t (Doc opts) -> Doc opts
|
||
fillSeparateTight d = fillSep . exceptLast (<+> d) . toList
|
||
|
||
|
||
export %inline
|
||
ifUnicode : (uni, asc : Lazy a) -> Eff Pretty a
|
||
ifUnicode uni asc =
|
||
asksAt FLAVOR $ \case
|
||
Unicode => uni
|
||
Ascii => asc
|
||
|
||
export %inline
|
||
parensIfM : {opts : _} -> PPrec -> Doc opts -> Eff Pretty (Doc opts)
|
||
parensIfM d doc = parensIf (!(getAt PREC) > d) doc
|
||
|
||
export %inline
|
||
withPrec : PPrec -> Eff Pretty a -> Eff Pretty a
|
||
withPrec = localAt_ PREC
|
||
|
||
|
||
export
|
||
prettyName : Name -> Doc opts
|
||
prettyName = text . toDots
|
||
|
||
export
|
||
prettyFree : {opts : _} -> Name -> Eff Pretty (Doc opts)
|
||
prettyFree = hl Free . prettyName
|
||
|
||
export
|
||
prettyBind' : BindName -> Doc opts
|
||
prettyBind' = text . baseStr . name
|
||
|
||
export
|
||
prettyTBind : {opts : _} -> BindName -> Eff Pretty (Doc opts)
|
||
prettyTBind = hl TVar . prettyBind'
|
||
|
||
export
|
||
prettyDBind : {opts : _} -> BindName -> Eff Pretty (Doc opts)
|
||
prettyDBind = hl DVar . prettyBind'
|
||
|
||
|
||
|
||
export %inline
|
||
typeD, arrowD, darrowD, timesD, lamD, eqndD, dlamD, annD, natD, triD, diamondD,
|
||
eqD, colonD, commaD, semiD, caseD, typecaseD, returnD, ofD, dotD, zeroD, succD,
|
||
coeD, compD, undD, cstD, pipeD :
|
||
{opts : LayoutOpts} -> Eff Pretty (Doc opts)
|
||
typeD = hl Syntax . text =<< ifUnicode "★" "Type"
|
||
arrowD = hl Delim . text =<< ifUnicode "→" "->"
|
||
darrowD = hl Delim . text =<< ifUnicode "⇒" "=>"
|
||
timesD = hl Delim . text =<< ifUnicode "×" "**"
|
||
lamD = hl Syntax . text =<< ifUnicode "λ" "fun"
|
||
eqndD = hl Delim . text =<< ifUnicode "≡" "=="
|
||
dlamD = hl Syntax . text =<< ifUnicode "δ" "dfun"
|
||
annD = hl Delim . text =<< ifUnicode "∷" "::"
|
||
natD = hl Syntax . text =<< ifUnicode "ℕ" "Nat"
|
||
triD = hl Syntax . text =<< ifUnicode "⊲" "<|"
|
||
diamondD = hl Syntax . text =<< ifUnicode "⋄" "<>"
|
||
eqD = hl Syntax $ text "Eq"
|
||
colonD = hl Delim $ text ":"
|
||
commaD = hl Delim $ text ","
|
||
semiD = hl Delim $ text ";"
|
||
caseD = hl Syntax $ text "case"
|
||
typecaseD = hl Syntax $ text "type-case"
|
||
ofD = hl Syntax $ text "of"
|
||
returnD = hl Syntax $ text "return"
|
||
dotD = hl Delim $ text "."
|
||
zeroD = hl Syntax $ text "zero"
|
||
succD = hl Syntax $ text "succ"
|
||
coeD = hl Syntax $ text "coe"
|
||
compD = hl Syntax $ text "comp"
|
||
undD = hl Syntax $ text "_"
|
||
cstD = hl Syntax $ text "="
|
||
pipeD = hl Syntax $ text "|"
|
||
|
||
|
||
export
|
||
prettyApp : {opts : _} -> Nat -> Doc opts -> List (Doc opts) -> Doc opts
|
||
prettyApp ind f args =
|
||
hsep (f :: args)
|
||
<|> hsep [f, vsep args]
|
||
<|> vsep (f :: map (indent ind) args)
|
||
|
||
export
|
||
prettyAppD : {opts : _} -> Doc opts -> List (Doc opts) -> Eff Pretty (Doc opts)
|
||
prettyAppD f args = pure $ prettyApp !(askAt INDENT) f args
|
||
|
||
|
||
export
|
||
escapeString : String -> String
|
||
escapeString = concatMap esc1 . unpack where
|
||
esc1 : Char -> String
|
||
esc1 '"' = #"\""#
|
||
esc1 '\\' = #"\\"#
|
||
esc1 '\n' = #"\n"#
|
||
esc1 c = singleton c
|
||
|
||
export
|
||
quoteTag : String -> String
|
||
quoteTag tag =
|
||
if isName tag then tag else
|
||
"\"" ++ escapeString tag ++ "\""
|
||
|
||
export
|
||
prettyBounds : {opts : _} -> Bounds -> Eff Pretty (Doc opts)
|
||
prettyBounds (MkBounds l1 c1 l2 c2) =
|
||
hcat <$> sequence
|
||
[hl TVar $ text $ show l1, colonD,
|
||
hl DVar $ text $ show c1, hl Delim "-",
|
||
hl TVar $ text $ show l2, colonD,
|
||
hl DVar $ text $ show c2, colonD]
|
||
|
||
export
|
||
prettyLoc : {opts : _} -> Loc -> Eff Pretty (Doc opts)
|
||
prettyLoc (L NoLoc) =
|
||
hcat <$> sequence [hl TVarErr "no location", colonD]
|
||
prettyLoc (L (YesLoc file b)) =
|
||
hcat <$> sequence [hl Free $ text file, colonD, prettyBounds b]
|