CODEWITHSUNDEEP
emacs
user4035
user4035

Reputation: 23719

Emacs get the list of functions in Perl file

I want to automatically generate an HTML document, containing docs for a Perl file. To build it I need a list functions, contained in the file. Every function has the format '^sub name'. Is there any function to get all function names? Or how to write it?

Upvotes: 1

Views: 285

Answers (2)

Oleg Pavliv
Oleg Pavliv

Reputation: 21152

You can use elisp search functions:

(defun find-perl-sub ()
  (let ((subs))
    (with-current-buffer "my-perl-file.pl"
      (goto-char (point-min))
      (while (re-search-forward "^[[:blank:]]*sub[[:blank:]]+\\([a-zA-Z0-9_]+\\)" nil t)
        (push (match-string-no-properties 1) subs)))
    subs
    ))

Upvotes: 1

Stefan
Stefan

Reputation: 28521

Note that extracting all the function names (together with their location in the buffer) is already done by imenu. So you may prefer to use that. Just call imenu--make-index-alist and then look at the result in imenu--index-alist.

Upvotes: 2

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