Emacs：搜索空间查找函数 [英] Emacs: Search-Space for Find-Function

问题描述

在 slime 模式下，我的第一个 sbcl 项目工作，正确设置emacs在我的代码中导航有困难：通常，我想跳转到函数定义（到我的源代码中的任何自定义函数）。因此， find-function 似乎是一个很好的起点。不幸的是， find-function 永远不会发现我的任何功能：[无匹配]！我的源代码位于一个简单的文件，如 geometry.lisp ，其功能定义如下：

Working on my first sbcl project in slime mode, I have trouble with setting up emacs properly for navigating within my code: Often, I would like to jump to the function definition (to any custom function within my source code) of a function. Therefore find-function seems to be a good starting point. Unfortunately, find-function never finds any of my functions: [No match]! My source code is located in a simple file like geometry.lisp with function definitions like:

    (defun get-right-normal(vector)
       "Computes right-normal of given vector"
       (make-2d-vector :x (* -1 (2d-vector-y vector)) :y (2d-vector-x vector)))

我将源文件的路径添加到'load -path变量：

I added the path of the source file to the 'load-path variable:

    (add-to-list 'load-path "/path/to/src") 

find-function 的描述说

The library where FUNCTION is defined is searched for in
`find-function-source-path', if non-nil, otherwise in `load-path'.

但是尝试将`find-function-source-path / p>

But trying to set `find-function-source-path by

    (add-to-list 'find-function-source-path "/path/to/src") 

返回

Symbol's value as variable is void: find-function-source-path

如何设置这个变量？我做错了什么？

How can I set the value of this variable? What am I doing wrong?

推荐答案

您必须先定义事物才能要求他们的价值观。错误消息告诉您，变量 find-functions-source-path 未定义。为什么？因为你没有加载定义它的库。您需要加载库 find-func.el [c] ： （require'find-func） 。

You must define things before you can ask for their values. The error message tells you that variable find-functions-source-path is not defined. Why? Because you have not loaded the library that defines it. You need to load library find-func.el[c]: (require 'find-func).

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