emacs

I'm trying to use the guess-TeX-master function (from emacswiki auctex) but I get this error:

Wrong type argument: stringp, nil

My elisp knowledge is quite poor. Does somebody know the problem?

[EDIT]

This error was because I forgot do it the latex hook.

Anyway I trying to do something different. I want to find the file (in the same directory) that has the "begin{document}". Because my elisp skills are poor, I do it in a script:

In my .emacs:

(add-hook 'LaTeX-mode-hook  
  (lambda ()  
    (setq TeX-master (execvp "guess-TeX-master"  
      (file-name-directory (buffer-file-name))))))  

execvp defun is here: http://www.emacswiki.org/emacs/ExecuteExternalCommand

The guess-TeX-master script is:

grep "begin{document}" $1/*.tex | cut -d ':' -f 1 | tr -d 'n'

How to do the same using elisp only?

---

你可以粘贴你的代码（在paste.lisp.org并在这里分享链接），这样我们就可以发现它是否真的存在句法问题。基本上，根据我的理解，你试图为操作符使用一个错误的参数。

链接地址: http://www.djcxy.com/p/33392.html

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