用$和多行替换LaTeX [英] Replace LaTeX with $ and multi-line

问题描述

我想用sed代替 $ some乳胶$ 或

$$
some latex
$$

带有 {％math％}一些乳胶{％endmath％} 或

{% math %}
some latex
{% endmath %}

我尝试用sed解决此问题，但使用了类似的命令

I try sed to solve this problem but a command like

sed -e 's/\$\([^\$]\{1,\}\)\$/{% math %}\1{% endmath %}/g' filename

不适用于 $ some乳胶$ ，而且我不知道如何处理多行.我该怎么办?

doesn't work for $some latex$ and I don't know how to deal with multi-line. How can I do this?

推荐答案

使用sed尝试一下:

sed -e ' /\$\$/{s/\$\$/{% math %}/;:a;N;/\$\$/!ba;s/\$\$/{% endmath %}/};s/^\(\$\)\(.*\)\(\$\)$/{% math %}\2{% endmath %}/' sourcefile

保留多行.

更新:

似乎有一个BSD(OS X?)

It seems there is a BSD (OS X?) sed issue with semi colons.

应该用新行替换它:

sed -e '
  /\$\$/ {
    s/\$\$/{% math %}/
      :a
      N
      /\$\$/!ba
      s/\$\$/{% endmath %}/;}
      s/^\(\$\)\(.*\)\(\$\)$/{% math %}\2{% endmath %}/
' sourcefile

我还更新了最后一个 s 命令，以匹配注释中提到的 $ \ $ $ 等行.

I also updated the last s command to match lines like $ \$ $ mentioned in you comments.

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