[Sputnik-list] Markdown Extra in Lua: temporary solution

[Yuri Takhteyev]

Note that if you want to use this in Sputnik, you can put this into a
module that mimics the behavior of sputnik.markup.markdown (basically
returning a table that provides a "transform" function), and then just
set a config parameter MARKUP_MODULE to the name of the module.

Though, I am wondering if there is a way to make Lua speak to PHP
without having to do disk IO.

 - yuri

On Mon, Mar 17, 2008 at 12:28 PM, Bert Fitié <bert at analytag.com> wrote:
>
>  I'm planning to use markdown within the framework of Kepler. Many of
>  my markdown files contain tables following the syntax of PHP Markdown
>  Extra. Extending the native markdown.lua with these extra features is
>  at present not scheduled.
>
>  Since I want to start with markdown in Kepler now, I am using the
>  following temporary solution for Markdown Extra in Kepler:
>
>  (1) First, the following PHP command line script "markdown-extra" in
>  my PATH (from http://comox.textdrive.com/pipermail/textmate/2007-August/021803.html)
>  :
>
>  #!/usr/bin/php -q
>
>  <?php
>      include_once "/path/to/markdown-extra.php";
>      $my_text = "";
>         while (!feof(STDIN)) {
>             $my_text .= fread(STDIN, 4096);
>         }
>      $my_html = Markdown($my_text);
>      echo $my_html;
>  ?>
>
>  (2) Second, the following Lua function "markdown" in my private "util"
>  module:
>
>  function markdown(text)
>      local input = os.tmpname()
>      local output = os.tmpname()
>      local f = assert(io.open(input, "w"))
>      f:write(text)
>      f:close()
>      os.execute("markdown-extra < "..input.." >"..output)
>      for line in io.lines (output) do
>          cgilua.put (line)
>      end
>      os.remove (input)
>      os.remove (output)
>  end
>
>  (3) Third, the following usage in Lua Pages (or Lua Scripts):
>
>      <%
>      require("util")
>      local md = [=[
>      <markdown text>
>      ]=]
>      %>
>
>      <%= util.markdown(md) %>
>
>  -- Bert
>
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