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remove some dead code

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This commit is contained in:
Humza Shahid
2025-10-19 14:32:57 +01:00
parent 7d1272180b
commit 766945ac88
1 changed files with 0 additions and 73 deletions
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73
fcore/cursor.sml
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@@ -59,79 +59,6 @@ struct
val viL = ViLDfa.next val viL = ViLDfa.next
val viH = ViHDfa.prev val viH = ViHDfa.prev
fun helpGetCursorColumn (distanceFromLine, strList, lineList) =
case (strList, lineList) of
(strHd :: strTl, lnHd :: lnTl) =>
if Vector.length lnHd = 0 then
(* lnHd is empty, so line is not here *)
helpGetCursorColumn
(distanceFromLine + String.size strHd, strTl, lnTl)
else
(* lnHd is not empty, meaning last lineIdx is closest linebreak *)
let
val lineIdx = Vector.sub (lnHd, Vector.length lnHd - 1)
(* number of chars after the lineIdx *)
val idxAfterLn = String.size strHd - lineIdx
in
distanceFromLine + idxAfterLn - 1
end
| (_, _) => distanceFromLine
fun helpGetCursorColumnLeft (leftStrings, leftLines, cursorIdx) =
case (leftStrings, leftLines) of
(lshd :: lstl, llhd :: lltl) =>
let
val cursorIdx = cursorIdx - String.size lshd
in
if Vector.length llhd > 0 then
let val lnIdx = Vector.sub (llhd, Vector.length llhd - 1)
in lnIdx + cursorIdx
end
else
helpGetCursorColumnLeft (lstl, lltl, cursorIdx)
end
| (_, _) => Int.max (cursorIdx, 0)
fun getCursorColumn (strIdx, strHd, lnHd, leftStrings, leftLines, cursorIdx) =
if Vector.length lnHd > 0 then
let
val firstLn = Vector.sub (lnHd, 0)
in
if firstLn > strIdx then
(* search left strings/lines *)
let
val lineIdx =
helpGetCursorColumnLeft
(leftStrings, leftLines, cursorIdx - strIdx)
in
if lineIdx = 0 then cursorIdx else cursorIdx - lineIdx - 1
end
else if firstLn < strIdx then
(* binary search in here
* because we know lnHd definitely contains
* a lineIdx less or equal to strIdx *)
let
(* todo: what if BinSearch doesn't find anything? *)
val lnIdx = BinSearch.equalOrLess (strIdx, lnHd)
val lnIdx = Vector.sub (lnHd, lnIdx)
in
if lnIdx < strIdx then strIdx - lnIdx - 1
else (* firstLn = strIdx *) 0
end
else
(* firstLn = strIdx
* meaning that we are already at a line break
* and that the column is 0 *)
0
end
else
let
val lineIdx =
helpGetCursorColumnLeft (leftStrings, leftLines, cursorIdx - strIdx)
in
if lineIdx = 0 then cursorIdx else cursorIdx - lineIdx - 1
end
(* equivalent of vi's 'w' command *) (* equivalent of vi's 'w' command *)
val nextWord = ViWordDfa.startOfNextWord val nextWord = ViWordDfa.startOfNextWord