lualatex 1.12 与 newcommand 和 arabluatex 的兼容性

Question

我升级到了新的lualatex 1.12，看来我在不同的包和lualatex的组合上遇到了问题。

我尝试遵循这个执行用于下划线。但不知何故，该软件包arabluatex似乎引发了兼容性问题。即

\documentclass{article}
\usepackage{luacode}
\usepackage{pict2e}


\usepackage{arabluatex} % for support of arabic fonts

\newattribute\underlineattr
\begin{luacode*}
  local underlineattr = token.create'underlineattr'.index
  local underline_types = {}
  function new_underline_type()
    table.insert(underline_types, tex.box[0].head)
    tex.box[0].head = nil
    tex.sprint(#underline_types)
  end
  local add_underline_h
  local function add_underline_v(head)
    for n in node.traverse(head) do
      if head.id == node.id'hlist' then
        add_underline_h(n)
      elseif head.id == node.id'vlist' then
        add_underline_v(n.head)
      end
    end
  end
  function add_underline_h(head)
    node.slide(head.head)
    local last_value
    local first
    for n in node.traverse(head.head) do
      local new_value = node.has_attribute(n, underlineattr)
      if n.id == node.id'hlist' then
        new_value = nil
        add_underline_h(n)
      elseif n.id == node.id'vlist' then
        new_value = nil
        add_underline_v(n.head)
      elseif n.id == node.id'kern' and n.subtype == 0 then
        if n.next and not node.has_attribute(n.next, underlineattr) then
          new_value = nil
        else
          new_value = last_value
        end
      elseif n.id == node.id'glue' and (
          n.subtype == 8 or
          n.subtype == 9 or
          n.subtype == 15 or
      false) then
        new_value = nil
      end
      if last_value ~= new_value then
        if last_value then
          local width = node.rangedimensions(head, first, n)
          local kern = node.new'kern'
          kern.kern = -width
          kern.next = node.copy(underline_types[last_value])
          kern.next.width = width
          kern.next.next = n
          n.prev.next = kern
        end
        if new_value then
          first = n
        end
        last_value = new_value
      end
    end
    if last_value then
      local width = node.rangedimensions(head, first)
      local kern = node.new'kern'
      kern.kern = -width
      kern.next = node.copy(underline_types[last_value])
      kern.next.width = width
      node.tail(head.head).next = kern
    end
  end
  local function filter(b, loc, prev, mirror)
    add_underline_v(b)
    local new_prev = mirror and b.height or b.depth
    if prev > -65536000 then
      local lineglue = tex.baselineskip.width - prev - (mirror and b.depth or b.height)
      local skip
      if lineglue < tex.lineskiplimit then
        skip = node.new('glue', 1)
        node.setglue(skip, node.getglue(tex.lineskip))
      else
        skip = node.new('glue', 2)
        node.setglue(skip, node.getglue(tex.baselineskip))
        skip.width = lineglue
      end
      skip.next = b
      b = skip
    end
    return b, new_prev
    -- return node.prepend_prevdepth(b)
  end
  luatexbase.callbacktypes.append_to_vlist_filter = 3 -- This should not be necessary
  luatexbase.add_to_callback('append_to_vlist_filter', filter, 'add underlines to list')
\end{luacode*}


\newcommand\newunderlinetype[2]{%
    \setbox0\hbox{#2\hskip0pt}%
    \chardef#1=\directlua{new_underline_type()}\relax
}
\newunderlinetype\mystrikethrough{\leaders\vrule height3.5ptdepth-3pt}
\newcommand\strikeThrough[1]{{\underlineattr=\mystrikethrough#1}}
\newunderlinetype\myunderline{\leaders\vrule height-1ptdepth1.5pt}
\newcommand\underLine[1]{{\underlineattr=\myunderline#1}}


\begin{document}
V\underLine{A}V


\strikeThrough{Dinner is ready!}
\end{document}

导致一个奇怪的错误 - 即

 ! LaTeX Error: Command \underLine already defined.

使用 lualatex 1.10 可以正确编译相同的代码。软件包是否arabluatex已更改，或者现在 lualatex 是否变得更加严格？

另外还有一个简单的解决这个问题的方法是让 luatex 编译代码？

Answer 1

您所指的代码已放入包中lua-ul，arabluatex 会加载此包。只需删除您的代码即可享受：

\documentclass{article}
\usepackage{luacode}
\usepackage{pict2e}

\usepackage{arabluatex} % for support of arabic fonts

\begin{document}
V\underLine{A}V

\strikeThrough{Dinner is ready!}
\end{document}