在emacs中使用url elisp包创建POST：utf-8问题 [英] Creating a POST with url elisp package in emacs: utf-8 problem

问题描述

我目前正在创建一个休息客户端，用于以pastie.el的精神制作博客帖子。主要目标是让我在emacs上编写一个纺织品，并发贴到一个可以创建它的Rails应用程序中。它工作正常，直到我输入任何西班牙语或日语，然后我得到一个500错误。 pastie.el也有同样的问题。

I'm currently creating a Rest client for making blog posts much in the spirit of pastie.el. The main objective is for me to write a textile in emacs and make a post to a Rails application that will create it. It is working fine until I type anything in either spanish or japanese, then I get a 500 error. pastie.el has this same problem also by the way.

这是代码：

（require'url）

(require 'url)

(defun create-post()

(interactive)

(let ((url-request-method "POST")

    (url-request-extra-headers '(("Content-Type" . "application/xml")))

    (url-request-data (concat "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
                              "<post>"
                              "<title>"
                              "Not working with spanish nor japanese"
                              "</title>"
                              "<content>"
                              ;; "日本語"   ;; not working
                              ;; "ñ"        ;; not working either
                              "h1. Textile title\n\n"
                              "*Textile bold*"
                              "</content>"
                              "</post>"))
    )                               ; end of let varlist
(url-retrieve "http://127.0.0.1:3000/posts.xml"
              ;; CALLBACK
              (lambda (status)
                (switch-to-buffer (current-buffer)))
              )))

可以想象，现在可以解决的问题是通过使emacs编码utf-8字符，使ñ成为&＃241（这样做）。

The only way I can imagine right now that the problem could be fixed is by making emacs encode the utf-8 characters so that a 'ñ' becomes '&#241' (which works by the way).

这个问题可以解决什么问题？

What could be a work around for this problem?

编辑：'*'不等于*'。我的意思是，如果我使用emacs编码为utf-8，例如'sgml-char'，它将使整个帖子变为utf-8编码。喜欢*从而使RedCloth无法将其转换成html。对不起，这是非常糟糕的解释。

'*' is not equivalent to *'. What I meant was that if I encoded to utf-8 with emacs using for example 'sgml-char' it would make the whole post become utf-8 encoded. Like *Textile bold* thus making RedCloth being unable to convert it into html. Sorry, it was very bad explained.

推荐答案

猜测：如果您设置 url-请求数据到

(encode-coding-string (concat "<?xml etc...") 'utf-8)

而不是

没有什么真的可以告诉你什么编码系统你使用，所以我想你必须自己编码你的数据。这也应该给出一个正确的 Content-length 头，因为它刚刚来自（length url-request-data） ，这显然会给大多数UTF-8字符串带来错误的结果。

There's nothing really to tell url what coding system you use, so I guess you have to encode your data yourself. This should also give a correct Content-length header, as that just comes from (length url-request-data), which would obviously give the wrong result for most UTF-8 strings.

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