,("→", ITrarrow, unicodeSyntaxEnabled)
,("←", ITlarrow, unicodeSyntaxEnabled)
,("⋯", ITdotdot, unicodeSyntaxEnabled)
+
+ ,("⤙", ITlarrowtail, \i -> unicodeSyntaxEnabled i && arrowsEnabled i)
+ ,("⤚", ITrarrowtail, \i -> unicodeSyntaxEnabled i && arrowsEnabled i)
+ ,("⤛", ITLarrowtail, \i -> unicodeSyntaxEnabled i && arrowsEnabled i)
+ ,("⤜", ITRarrowtail, \i -> unicodeSyntaxEnabled i && arrowsEnabled i)
+
+ ,("★", ITstar, unicodeSyntaxEnabled)
+
-- ToDo: ideally, → and ∷ should be "specials", so that they cannot
-- form part of a large operator. This would let us have a better
-- syntax for kinds: ɑ∷*→* would be a legal kind signature. (maybe).
setLine :: Int -> Action
setLine code span buf len = do
let line = parseUnsignedInteger buf len 10 octDecDigit
- setSrcLoc (mkSrcLoc (srcSpanFile span) (fromIntegral line - 1) 0)
+ setSrcLoc (mkSrcLoc (srcSpanFile span) (fromIntegral line - 1) 1)
-- subtract one: the line number refers to the *following* line
_ <- popLexState
pushLexState code
setFile :: Int -> Action
setFile code span buf len = do
let file = lexemeToFastString (stepOn buf) (len-2)
+ setAlrLastLoc noSrcSpan
setSrcLoc (mkSrcLoc file (srcSpanEndLine span) (srcSpanEndCol span))
_ <- popLexState
pushLexState code
mExpectingOCurly <- getAlrExpectingOCurly
let thisLoc = getLoc t
thisCol = srcSpanStartCol thisLoc
- newLine = srcSpanStartLine thisLoc > srcSpanEndLine lastLoc
+ newLine = (lastLoc == noSrcSpan)
+ || (srcSpanStartLine thisLoc > srcSpanEndLine lastLoc)
case (unLoc t, context, mExpectingOCurly) of
-- I think our implicit open-curly handling is slightly
-- different to John's, in how it interacts with newlines
setNextToken t
lexTokenAlr
(_, ALRLayout _ col : ls, Just expectingOCurly)
- | thisCol > col ->
+ | (thisCol > col) ||
+ (thisCol == col &&
+ isNonDecreasingIntentation expectingOCurly) ->
do setAlrExpectingOCurly Nothing
setALRContext (ALRLayout expectingOCurly thisCol : context)
setNextToken t
isALRclose ITcubxparen = True
isALRclose _ = False
+isNonDecreasingIntentation :: ALRLayout -> Bool
+isNonDecreasingIntentation ALRLayoutDo = True
+isNonDecreasingIntentation _ = False
+
containsCommas :: Token -> Bool
containsCommas IToparen = True
containsCommas ITobrack = True