~alcinnz/haskell-stylist

5cc97dd90fd95fc31a85bd40469319cb5d224a82 — Adrian Cochrane 1 year, 6 months ago 95737cb
Ensure newline-collapse settings are preserved, code tidies regarding whitespace collapsing.
1 files changed, 18 insertions(+), 9 deletions(-)

M src/Data/CSS/Preprocessor/Text.hs
M src/Data/CSS/Preprocessor/Text.hs => src/Data/CSS/Preprocessor/Text.hs +18 -9
@@ 402,17 402,21 @@ setContent value self = self {
collapseWS :: StyleTree (TextStyle p) -> StyleTree (TextStyle p)
collapseWS = treeOrder collapseWS0 True
collapseWS0 :: Bool -> Bool -> Path -> TextStyle p -> (Bool, TextStyle p)
collapseWS0 _ _ _ node@(TextStyle {whiteSpaceCollapse = False, newlineCollapse = False}) = (False, node)
collapseWS0 _ _ _ node@(TextStyle {
    whiteSpaceCollapse = False, newlineCollapse = False }) = (False, node)
collapseWS0 _ inSpace _ node@(TextStyle {
        whiteSpaceCollapse = wsCollapse,
        newlineCollapse = nlCollapse
    }) = (trailingSpace, setContent content' node)
  where (trailingSpace, content') = collapseWSToks inSpace wsCollapse nlCollapse $ content node
  where (trailingSpace, content') =
            collapseWSToks inSpace wsCollapse nlCollapse $ content node

collapseWSToks :: Bool -> Bool -> Bool -> [Token] -> (Bool, [Token])
collapseWSToks stripStart wsCollapse nlCollapse (String txt:toks) =
    let (trailingSpace, str') = collapseWSStr stripStart wsCollapse nlCollapse $ Txt.unpack txt
        (trailingSpace', toks') = collapseWSToks trailingSpace wsCollapse nlCollapse toks
    let (trailingSpace, str') =
            collapseWSStr stripStart wsCollapse nlCollapse $ Txt.unpack txt
        (trailingSpace', toks') =
            collapseWSToks trailingSpace wsCollapse nlCollapse toks
    in (trailingSpace', String (Txt.pack str'):toks')
collapseWSToks _ wsCollapse nlCollapse (tok:toks) =
    let (trailingSpace, toks') = collapseWSToks False wsCollapse nlCollapse toks


@@ 420,9 424,14 @@ collapseWSToks _ wsCollapse nlCollapse (tok:toks) =
collapseWSToks trailingWS _ _ [] = (trailingWS, [])

collapseWSStr, collapseWSStr' :: Bool -> Bool -> Bool -> String -> (Bool, String)
collapseWSStr _ wsCollapse False str@('\n':_) = collapseWSStr' True wsCollapse True str
collapseWSStr True True nlCollapse (ch:str) | isSpace ch = collapseWSStr True True nlCollapse str
collapseWSStr False True nlCollapse str@(ch:_) | isSpace ch = collapseWSStr' True True nlCollapse str
collapseWSStr _ wsCollapse nlCollapse str = collapseWSStr' False wsCollapse nlCollapse str
collapseWSStr' a b c (d:ds) = let (trailing, ds') = collapseWSStr a b c ds in (trailing, d:ds')
collapseWSStr _ wsCollapse False str@('\n':_) =
    collapseWSStr' True wsCollapse False str
collapseWSStr True True nlCollapse (ch:str) | isSpace ch =
    collapseWSStr True True nlCollapse str
collapseWSStr False True nlCollapse str@(ch:_) | isSpace ch =
    collapseWSStr' True True nlCollapse str
collapseWSStr _ wsCollapse nlCollapse str =
    collapseWSStr' False wsCollapse nlCollapse str
collapseWSStr' a b c (d:ds) =
    let (trailing, ds') = collapseWSStr a b c ds in (trailing, d:ds')
collapseWSStr' a _ _ [] = (a, [])