support multicursor

joinLines.lua

@@ -6,44 +6,48 @@ local buffer = import("micro/buffer")
 local util = import("micro/util")
 
 function joinLines(v)
-    local a, b, c = nil, nil, v.Cursor
-    local selection = c:GetSelection()
-
-    if c:HasSelection() then
-        if c.CurSelection[1]:GreaterThan(-c.CurSelection[2]) then
-            a, b = c.CurSelection[2], c.CurSelection[1]
+    local ncursors = v.Buf:NumCursors()
+
+    for i = 0, ncursors - 1 do
+        local a, b, c = nil, nil, v.Buf:GetCursor(i)
+        local selection = c:GetSelection()
+
+        if c:HasSelection() then
+            if c.CurSelection[1]:GreaterThan(-c.CurSelection[2]) then
+                a, b = c.CurSelection[2], c.CurSelection[1]
+            else
+                a, b = c.CurSelection[1], c.CurSelection[2]
+            end
+            a = buffer.Loc(a.X, a.Y)
+            b = buffer.Loc(b.X, b.Y)
+            selection = c:GetSelection()
         else
-            a, b = c.CurSelection[1], c.CurSelection[2]
+            -- get beginning of curent line
+            c:StartOfText()
+            local startLoc = buffer.Loc(c.Loc.X, c.Loc.Y)
+            -- get the last position of the next line
+            -- I use the go function because Lua string.len counts bytes which leads
+            -- to wrong results with some unicode characters
+            local xNext = util.CharacterCountInString(v.Buf:Line(c.Loc.Y+1))
+
+            a = startLoc
+            b = buffer.Loc(xNext, c.Loc.Y+1)
+            c:SetSelectionStart(startLoc)
+            c:SetSelectionEnd(b)
+            selection = c:GetSelection()
         end
-        a = buffer.Loc(a.X, a.Y)
-        b = buffer.Loc(b.X, b.Y)
-        selection = c:GetSelection()
-    else
-        -- get beginning of curent line
-        c:StartOfText()
-        local startLoc = buffer.Loc(c.Loc.X, c.Loc.Y)  
-        -- get the last position of the next line 
-        -- I use the go function because Lua string.len counts bytes which leads
-        -- to wrong results with some unicode characters
-        local xNext = util.CharacterCountInString(v.Buf:Line(c.Loc.Y+1))
-
-        a = startLoc
-        b = buffer.Loc(xNext, c.Loc.Y+1)
-        c:SetSelectionStart(startLoc)
-        c:SetSelectionEnd(b)
-        selection = c:GetSelection()
-    end
 
-    selection = util.String(selection)
+        selection = util.String(selection)
 
-    -- swap all whitespaces with a single space
-    local modifiedSelection = string.gsub(selection, "%s+", " ")
+        -- swap all whitespaces with a single space
+        local modifiedSelection = string.gsub(selection, "%s+", " ")
 
-    if util.CharacterCountInString(selection) > 0 then
-        -- write modified selection to buffer
-        v.Buf:Replace(a, b, modifiedSelection)
-    else
-        c:ResetSelection()
+        if util.CharacterCountInString(selection) > 0 then
+            -- write modified selection to buffer
+            v.Buf:Replace(a, b, modifiedSelection)
+        else
+            c:ResetSelection()
+        end
     end
 end