elisp新手问题：找不到“文件名” org.el 中的函数定义？
我真的很喜欢 emacs 中的组织模式，并且想要自定义一些东西。在阅读 org.el 时，我发现了一些对 filename 的引用，但无法使用 describe-function 找到 filename？
我确信有一个简单的答案，但我刚刚学习 elisp，这并不明显。了解 filename 的定义位置吗？和/或如果它不是一个函数，那它是什么？
例如，第 25502 行的 filename：
(filename (if to-buffer
(expand-file-name
(concat
(file-name-sans-extension
(or (and subtree-p
(org-entry-get (region-beginning)
"EXPORT_FILE_NAME" t))
(file-name-nondirectory buffer-file-name)))
"." html-extension)
(file-name-as-directory
(or pub-dir (org-export-directory :html opt-plist))))))
I really love org-mode in emacs and want to customize a few things. While reading thru org.el, I'm finding several references to filename but can't find filename using describe-function?
I'm sure there's a simple answer, but I'm just learning elisp and it's not obvious. Any insight into where filename is defined? And/or if it's not a function, what is it?
For example, filename on line 25502:
(filename (if to-buffer
(expand-file-name
(concat
(file-name-sans-extension
(or (and subtree-p
(org-entry-get (region-beginning)
"EXPORT_FILE_NAME" t))
(file-name-nondirectory buffer-file-name)))
"." html-extension)
(file-name-as-directory
(or pub-dir (org-export-directory :html opt-plist))))))
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这不是一个函数，而是由
let特殊形式创建的局部变量。注意：这当然是一个疯狂的猜测，因为我找不到您在我能找到的
org.el版本中发布的代码，而且它们都不是接近 25502 行长。That's not a function, that's a local variable created by the
letspecial form.Note: This is, of course, a wild guess since I cannot find the code you posted in the versions of
org.elI can find, and none of them are even close to 25502 lines long.