"执行并更新'#=>'标记”对于VIM

发布于 2024-10-13 02:32:30 字数 665 浏览 7 评论 0 原文

VIM中是否有可能重复“执行并更新'# =>'标记”用于 ruby 代码的 TextMate 功能。

我想要这样的东西：

x = 2
class A
  def a
    42
  end
end

x # => 
A.new.a # =>

输入一些命令...并获取

x = 2
class A
  def a
    42
  end
end

x # => 2
A.new.a # => 42

这是来自 Ciarán Walsh 的博客：

另一个绝对值得了解的工具是“执行并更新'# =>' 标记”命令（默认在 ⌃⇧⌘E 上）。要使用它，请添加一些注释标记（#⇥ 上有一个片段为您插入这些）到末尾您想查看的线路结果然后触发命令。 TextMate 将运行您的代码并报告标记结果行内联在评论中。这该功能非常适合发布代码在线，因为它显示了来源和结果在一起。

原文

Is there a possibility in VIM to repeat "Execute and Update '# =>' Markers" TextMate feature for ruby code.

I'd like to have something like:

x = 2
class A
  def a
    42
  end
end

x # => 
A.new.a # =>

Enter some command... and get

x = 2
class A
  def a
    42
  end
end

x # => 2
A.new.a # => 42

Here is a description of this feature from Ciarán Walsh’s Blog:

Another tool definitely worth knowing
is the "Execute and Update '# =>'
Markers" command (on ⌃⇧⌘E by default).
To use it, add some comment markers
(there is a snippet on #⇥ that will
insert these for you) to the end of
lines you would like to see the
results of and then trigger the
command. TextMate will run your code
and report the result of the marked
line inline in the comments. This
feature is great for code posted
online since it shows the source and
the results together.

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总以为 2024-10-20 02:32:30

使用 rcodetools 中的 xmpfilter。

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情话已封尘 2024-10-20 02:32:30

看起来将其编写为 Vim 函数应该不会太难。试试这个：

function! ExecuteAndUpdate()
    ruby << EOF
        marker = '# =>'
        buf = VIM::Buffer.current
        lines = File.readlines(buf.name)

        bnd = binding
        eval(lines.join("\n"), bnd)

        lines.each_with_index do |line, i|
            if line.match(/#{marker}/)
                result = marker + ' ' + eval(line, bnd).inspect
                buf[i+1] = line.sub(/#{marker}.*/, result).chomp
            end
        end
EOF
endfunction

然后 :调用 ExecuteAndUpdate()。

一个限制是它用标记对每一行进行两次评估。因此带有标记的线条不应该有副作用。

Seems like it shouldn't be too hard to write this as a Vim function. Try this:

function! ExecuteAndUpdate()
    ruby << EOF
        marker = '# =>'
        buf = VIM::Buffer.current
        lines = File.readlines(buf.name)

        bnd = binding
        eval(lines.join("\n"), bnd)

        lines.each_with_index do |line, i|
            if line.match(/#{marker}/)
                result = marker + ' ' + eval(line, bnd).inspect
                buf[i+1] = line.sub(/#{marker}.*/, result).chomp
            end
        end
EOF
endfunction

Then :call ExecuteAndUpdate().

One limitation is that it evaluates each line with a marker twice. So lines with markers shouldn't have side-effects.

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