-- TIME_STAMP   2016-01-25 22:37:26

SemiColonHit = EventClass:new(Common)

local iTargetcol = (tonumber(props['Comment.Autopos.*.au3']) or 100) -1

function SemiColonHit:OnKey(_keycode, _shift, _ctrl, _alt)
	if props['FileExt']:upper() ~= 'AU3' then return nil end
	if _keycode == 188 and _shift and not _ctrl and not _alt then
		local iPosCurrent = editor.CurrentPos
		local iCol = editor.Column[iPosCurrent]

		-- do nothing, if cursor at line start or behind target column
		if iCol == 0 or iCol >= iTargetcol then return nil end

		-- check if style is 0
		if editor.StyleAt[iPosCurrent] ~= 0 then return nil end

		-- check if only spaces/tabs left from cursor
		local iLine = editor:LineFromPosition(iPosCurrent)
		local iPosStart = editor:PositionFromLine(iLine)
		editor:SetSelection(iPosStart,iPosCurrent)
		local sSel = editor:GetSelText()
		editor.CurrentPos = iPosCurrent
		if sSel:gsub('%s*', '') == '' then return nil end

		-- check if no text right from cursor
		editor:LineEnd()
		local iPosEnd = editor.CurrentPos
		editor:SetSelection(iPosCurrent,iPosEnd)
		local sSel = editor:GetSelText()
		editor.CurrentPos = iPosCurrent
		if sSel:gsub('[%s\n]*', '') ~= '' then return nil end

		-- calculate difference to target column, fill with spaces
		local iDiff = iTargetcol - iCol
		editor:BeginUndoAction()
		editor:insert(iPosCurrent, (' '):rep(iDiff)..'; ')
		editor:LineEnd()
		editor:EndUndoAction()
		return true
	else
		return nil
	end
end