;;; edocs.el --- Extract documentation from file(s) ;; Copyright (C) 2013 Tom Willemse ;; Author: Tom Willemse ;; Keywords: docs ;; Version: 0.1.0 ;; This program is free software; you can redistribute it and/or modify ;; it under the terms of the GNU General Public License as published by ;; the Free Software Foundation, either version 3 of the License, or ;; (at your option) any later version. ;; This program is distributed in the hope that it will be useful, ;; but WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ;; GNU General Public License for more details. ;; You should have received a copy of the GNU General Public License ;; along with this program. If not, see . ;;; Commentary: ;; Generate formatted description of a module. ;;; Code: (defun edocs--list-symbols () "Get a list of all symbols in the buffer. The results also contain a specification of what was found for each symbol, for example a `defun', `defvar' or `defcustom', etc." (let (ls) (save-excursion (goto-char (point-min)) (while (re-search-forward (rx (and bol ?\( (group (or "defun" "defgroup" "defcustom" "defvar" "defclass" "defgeneric" "defconst" "define-minor-mode")) " " (group (1+ (not (any space ?\n ?\))))))) nil :noerror) (setq ls (cons (cons (buffer-substring-no-properties (match-beginning 1) (match-end 1)) (buffer-substring-no-properties (match-beginning 2) (match-end 2))) ls)))) ls)) (defun edocs--get-docs (type name) "Get docs of TYPE for symbol NAME." (let ((type (intern type)) (obj (intern name))) (case type ((defun define-minor-mode) (cons (format "%s" (or (help-function-arglist obj :preserve-names) "()")) (documentation obj))) ((defcustom defvar defconst defclass) (documentation-property obj 'variable-documentation)) (defgroup (documentation-property obj 'group-documentation)) (defgeneric (mapcar (lambda (itm) (cons (format "%s" (cons (list (car (nth 2 itm)) (car itm)) (cdr (nth 2 itm)))) (nth 3 itm))) (aref (plist-get (symbol-plist obj) 'eieio-method-tree) 2)))))) (defun edocs--get-type-display (type-name) "Get the display text for TYPE-NAME." (cond ((string= type-name "defun") "Function") ((string= type-name "define-minor-mode") "Minor mode") ((string= type-name "defgeneric") "Method") ((string= type-name "defclass") "Class") ((string= type-name "defcustom") "Customization option") ((string= type-name "defgroup") "Customization group") (t type-name))) (defun edocs-generate () "Generate nice-looking documentation for a module or file." (interactive) (let ((buffer (get-buffer-create "*edocs*")) (binfo (package-buffer-info))) (with-current-buffer buffer (insert "\n" "" "

" (aref binfo 0) " " (aref binfo 2) "

" (replace-regexp-in-string ";; " "" (replace-regexp-in-string ";;; Commentary:\n+" "" (aref binfo 4))) "

")) (mapc (lambda (itm) (let ((docs (edocs--get-docs (car itm) (cdr itm)))) (with-current-buffer buffer (mapc (lambda (doc) (insert "

— " (edocs--get-type-display (car itm)) " " (cdr itm) " " (if (consp doc) (car doc) "") "

" (or (if (consp doc) (replace-regexp-in-string "\n\n" "

" (cdr doc)) (replace-regexp-in-string "\n\n" "

" doc)) "Not documented.") "

")) (if (or (not (listp docs)) (not (listp (cdr docs)))) (list docs) docs))))) (edocs--list-symbols)) (with-current-buffer buffer (insert "")) (switch-to-buffer buffer))) (provide 'edocs) ;;; edocs.el ends here