--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lisp/modes/lisp-mnt.el	Mon Aug 13 08:45:50 2007 +0200
@@ -0,0 +1,451 @@
+;;; lisp-mnt.el --- minor mode for Emacs Lisp maintainers
+
+;; Copyright (C) 1992, 1994, 1995 Free Software Foundation, Inc.
+
+;; Author: Eric S. Raymond <esr@snark.thyrsus.com>
+;; Maintainer: Eric S. Raymond <esr@snark.thyrsus.com>
+;; Created: 14 Jul 1992
+;; Version: $Id: lisp-mnt.el,v 1.1.1.1 1996/12/18 03:31:04 steve Exp $
+;; Keywords: docs
+;; X-Modified-by: Bob Weiner <weiner@mot.com>, 4/14/95, to support InfoDock
+;; 	headers.
+;; X-Bogus-Bureaucratic-Cruft: Gruad will get you if you don't watch out!
+
+;; This file is part of XEmacs.
+
+;; XEmacs 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 2, or (at your option)
+;; any later version.
+
+;; XEmacs 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 XEmacs; see the file COPYING.  If not, write to the Free
+;; Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+;;; Synched up with: FSF 19.30.
+ 
+;;; Commentary:
+
+;; This minor mode adds some services to Emacs-Lisp editing mode.
+;;
+;; First, it knows about the header conventions for library packages.
+;; One entry point supports generating synopses from a library directory.
+;; Another can be used to check for missing headers in library files.
+;; 
+;; Another entry point automatically addresses bug mail to a package's
+;; maintainer or author.
+
+;; This file can be loaded by your lisp-mode-hook.  Have it (require 'lisp-mnt)
+
+;; This file is an example of the header conventions.  Note the following
+;; features:
+;; 
+;;    * Header line --- makes it possible to extract a one-line summary of
+;; the package's uses automatically for use in library synopses, KWIC
+;; indexes and the like.
+;; 
+;;    Format is three semicolons, followed by the filename, followed by
+;; three dashes, followed by the summary.  All fields space-separated.
+;; 
+;;    * Author line --- contains the name and net address of at least
+;; the principal author.
+;; 
+;;    If there are multiple authors, they should be listed on continuation
+;; lines led by ;;<TAB>, like this:
+;; 
+;; ;; Author: Ashwin Ram <Ram-Ashwin@cs.yale.edu>
+;; ;;	Dave Sill <de5@ornl.gov>
+;; ;;	David Lawrence <tale@pawl.rpi.edu>
+;; ;;	Noah Friedman <friedman@ai.mit.edu>
+;; ;;	Joe Wells <jbw@maverick.uswest.com>
+;; ;;	Dave Brennan <brennan@hal.com>
+;; ;;	Eric Raymond <esr@snark.thyrsus.com>
+;; 
+;; This field may have some special values; notably "FSF", meaning
+;; "Free Software Foundation".
+;; 
+;;    * Maintainer line --- should be a single name/address as in the Author
+;; line, or an address only, or the string "FSF".  If there is no maintainer
+;; line, the person(s) in the Author field are presumed to be it.  The example
+;; in this file is mildly bogus because the maintainer line is redundant.
+;;    The idea behind these two fields is to be able to write a lisp function
+;; that does "send mail to the author" without having to mine the name out by
+;; hand. Please be careful about surrounding the network address with <> if
+;; there's also a name in the field.
+;; 
+;;    * Created line --- optional, gives the original creation date of the
+;; file.  For historical interest, basically.
+;; 
+;;    * Version line --- intended to give the reader a clue if they're looking
+;; at a different version of the file than the one they're accustomed to.  This
+;; may be an RCS or SCCS header.
+;; 
+;;    * Adapted-By line --- this is for FSF's internal use.  The person named
+;; in this field was the one responsible for installing and adapting the
+;; package for the distribution.  (This file doesn't have one because the
+;; author *is* one of the maintainers.)
+;; 
+;;    * Keywords line --- used by the finder code (now under construction)
+;; for finding Emacs Lisp code related to a topic.
+;;
+;;    * X-Bogus-Bureaucratic-Cruft line --- this is a joke and an example
+;; of a comment header.  Headers starting with `X-' should never be used
+;; for any real purpose; this is the way to safely add random headers
+;; without invoking the wrath of any program.
+;;
+;;    * Commentary line --- enables lisp code to find the developer's and
+;; maintainers' explanations of the package internals.
+;; 
+;;    * Change log line --- optional, exists to terminate the commentary
+;; section and start a change-log part, if one exists.
+;; 
+;;    * Code line --- exists so Lisp can know where commentary and/or
+;; change-log sections end.
+;; 
+;;    * Footer line --- marks end-of-file so it can be distinguished from
+;; an expanded formfeed or the results of truncation.
+
+;;; Change Log:
+
+;; Tue Jul 14 23:44:17 1992	ESR
+;;	* Created.
+
+;;; Code:
+
+(require 'picture)		; provides move-to-column-force
+(require 'emacsbug)
+
+;; These functions all parse the headers of the current buffer
+
+(defun lm-section-mark (hd &optional after)
+  ;; Return the buffer location of a given section start marker
+  (save-excursion
+    (let ((case-fold-search t))
+      (goto-char (point-min))
+      (if (re-search-forward (concat "^;;;* " hd "[:.][ \t\n]*") nil t)
+	  (if after
+	      (point)
+	    (match-beginning 0))))))
+
+(defun lm-code-mark ()
+  ;; Return the buffer location of the code start marker
+  (or (lm-section-mark "Code")
+      (save-excursion
+	(goto-char (point-min))
+	(if (re-search-forward "^\(" nil t)
+	    (match-beginning 0)))))
+
+(defun lm-header (hd)
+  ;; Return the contents of a named header
+    (goto-char (point-min))
+    (let ((case-fold-search t))
+      (if (re-search-forward
+	   (concat "^;; " hd ":[ \t]+\\(.*\\)") (lm-code-mark) t)
+	  (buffer-substring (match-beginning 1) (match-end 1))
+	nil)))
+
+(defun lm-header-multiline (hd)
+  ;; Return the contents of a named header, with possible continuation lines.
+  ;; Note -- the returned value is a list of strings, one per line.
+  (save-excursion
+    (goto-char (point-min))
+    (let ((res (save-excursion (lm-header hd))))
+      (if res
+	  (progn
+	    (forward-line 1)
+	    (setq res (list res))
+	    (while (looking-at "^;;\t\\(.*\\)")
+	      (setq res (cons (buffer-substring
+			       (match-beginning 1)
+			       (match-end 1))
+			      res))
+	      (forward-line 1))))
+      res)))
+
+;; These give us smart access to the header fields and commentary
+
+(defun lm-summary (&optional file)
+  ;; Return the buffer's or FILE's one-line summary.
+  (save-excursion
+    (if file
+	(find-file file))
+    (goto-char (point-min))
+    (prog1
+	(if (or (looking-at "^;;; [^ ]+ ---[ \t]+\\(.*\\)")
+		(re-search-forward "^;; SUMMARY:[ \t]+\\(.*\\)" nil t))
+	    (buffer-substring (match-beginning 1) (match-end 1)))
+      (if file
+	  (kill-buffer (current-buffer)))
+      )))
+
+
+(defun lm-crack-address (x)
+  ;; Given a string containing a human and email address, parse it
+  ;; into a cons pair (name . address).
+  (cond ((string-match "\\(.+\\) [(<]\\(\\S-+@\\S-+\\)[>)]" x)
+	 (cons (substring x (match-beginning 1) (match-end 1))
+	       (substring x (match-beginning 2) (match-end 2))))
+	((string-match "\\(\\S-+@\\S-+\\) [(<]\\(.*\\)[>)]" x)
+	 (cons (substring x (match-beginning 2) (match-end 2))
+	       (substring x (match-beginning 1) (match-end 1))))
+	((string-match "\\S-+@\\S-+" x)
+	 (cons nil x))
+	(t
+	 (cons x nil))))
+
+(defun lm-authors (&optional file)
+  ;; Return the buffer's or FILE's author list.  Each element of the
+  ;; list is a cons; the car is a name-aming-humans, the cdr an email
+  ;; address.
+  (save-excursion
+    (if file
+	(find-file file))
+    (let* ((authorlist (lm-header-multiline "author"))
+	   (email-list (lm-header-multiline "E-MAIL"))
+	   (authors authorlist))
+      (prog1
+	  (if (null email-list)
+	      (mapcar 'lm-crack-address authorlist)
+	    (while (and email-list authors)
+	      (setcar authors (cons (car authors) (car email-list)))
+	      (setq email-list (cdr email-list)
+		    authors (cdr authors)))
+	    authorlist)
+	(if file
+	    (kill-buffer (current-buffer)))))))
+
+(defun lm-maintainer (&optional file)
+  ;; Get a package's bug-report & maintenance address.  Parse it out of FILE,
+  ;; or the current buffer if FILE is nil.
+  ;; The return value is a (name . address) cons.
+  (save-excursion
+    (if file
+	(find-file file))
+    (prog1
+	(let ((maint (lm-header "maintainer")))
+	  (if maint
+	      (lm-crack-address maint)
+	    (car (lm-authors))))
+      (if file
+	  (kill-buffer (current-buffer))))))
+
+(defun lm-creation-date (&optional file)
+  ;; Return a package's creation date, if any.  Parse it out of FILE,
+  ;; or the current buffer if FILE is nil.
+  (save-excursion
+    (if file
+	(find-file file))
+    (prog1
+	(or (lm-header "created")
+	    (let ((date-and-time (lm-header "ORIG-DATE")))
+	      (if date-and-time
+		  (substring date-and-time 0
+			     (string-match " " date-and-time)))))
+      (if file
+	  (kill-buffer (current-buffer))))))
+
+(defun lm-last-modified-date (&optional file)
+  ;; Return a package's last-modified date, if you can find one.
+  (save-excursion 
+    (if file
+	(find-file file))
+    (prog1
+	(if (progn
+	      (goto-char (point-min))
+	      (re-search-forward
+	       "\\$Id: [^ ]+ [^ ]+ \\([^/]+\\)/\\([^/]+\\)/\\([^ ]+\\) "
+	       (lm-code-mark) t))
+	    (format "%s %s %s"
+		    (buffer-substring (match-beginning 3) (match-end 3))
+		    (nth (string-to-int 
+			  (buffer-substring (match-beginning 2) (match-end 2)))
+			 '("" "Jan" "Feb" "Mar" "Apr" "May" "Jun"
+			   "Jul" "Aug" "Sep" "Oct" "Nov" "Dec"))
+		    (buffer-substring (match-beginning 1) (match-end 1)))
+	  (let ((date-and-time (lm-header "LAST-MOD")))
+	    (if date-and-time
+		(substring date-and-time 0
+			   (string-match " " date-and-time)))))
+      (if file
+	  (kill-buffer (current-buffer))))))
+
+(defun lm-version (&optional file)
+  ;; Return the package's version field.
+  ;; If none, look for an RCS or SCCS header to crack it out of.
+  (save-excursion 
+    (if file
+	(find-file file))
+    (prog1
+	(or
+	 (lm-header "version")
+	 (let ((header-max (lm-code-mark)))
+	   (goto-char (point-min))
+	   (cond
+	    ;; Look for an RCS header
+	    ((re-search-forward "\\$Id: [^ ]+ \\([^ ]+\\) " header-max t)
+	     (buffer-substring (match-beginning 1) (match-end 1)))
+
+	    ;; Look for an SCCS header
+	    ((re-search-forward 
+	      (concat
+	       (regexp-quote "@(#)")
+	       (regexp-quote (file-name-nondirectory (buffer-file-name)))
+	       "\t\\([012345679.]*\\)")
+	      header-max t)
+	     (buffer-substring (match-beginning 1) (match-end 1)))
+
+	    (t nil))))
+      (if file
+	  (kill-buffer (current-buffer))))))
+
+(defun lm-keywords (&optional file)
+  ;; Return the header containing the package's topic keywords.
+  ;; Parse them out of FILE, or the current buffer if FILE is nil.
+  (save-excursion
+    (if file
+	(find-file file))
+    (prog1
+	(let ((keywords (lm-header "keywords")))
+	  (and keywords (downcase keywords)))
+      (if file
+	  (kill-buffer (current-buffer))))))
+
+(defun lm-adapted-by (&optional file)
+  ;; Return the name or code of the person who cleaned up this package
+  ;; for distribution.  Parse it out of FILE, or the current buffer if
+  ;; FILE is nil.
+  (save-excursion
+    (if file
+	(find-file file))
+    (prog1
+	(lm-header "adapted-by")
+      (if file
+	  (kill-buffer (current-buffer))))))
+
+(defun lm-commentary (&optional file)
+  ;; Return the commentary region of a file, as a string.
+  (save-excursion
+    (if file
+	(find-file file))
+    (prog1
+	(let ((commentary (lm-section-mark "Commentary" t))
+	      (end (lm-section-mark "Change Log")))
+	  (if commentary
+	      (if end
+		  (buffer-substring commentary end)
+		(setq end (lm-section-mark "Code"))
+		(buffer-substring commentary end))
+	    (setq commentary (lm-section-mark "DESCRIPTION" t)
+		  end (lm-section-mark "DESCRIP-END"))
+	    (and commentary end (buffer-substring commentary end))))
+      (if file
+	  (kill-buffer (current-buffer))))))
+
+;;; Verification and synopses
+
+(defun insert-at-column (col &rest pieces)
+   (if (> (current-column) col) (insert "\n"))
+   (move-to-column-force col)
+   (apply 'insert pieces))
+
+(defconst lm-comment-column 16)
+
+(defun lm-verify (&optional file showok)
+  "Check that the current buffer (or FILE if given) is in proper format.
+If FILE is a directory, recurse on its files and generate a report into
+a temporary buffer."
+  (if (and file (file-directory-p file))
+      (progn
+	(switch-to-buffer (get-buffer-create "*lm-verify*"))
+	(erase-buffer)
+	(mapcar
+	 (function
+	  (lambda (f)
+	    (if (string-match ".*\\.el$" f)
+		(let ((status (lm-verify f)))
+		  (if status
+		      (progn
+			(insert f ":")
+			(insert-at-column lm-comment-column status "\n"))
+		    (and showok
+			 (progn
+			   (insert f ":")
+			   (insert-at-column lm-comment-column "OK\n")))))))
+	  (directory-files file))))
+    (save-excursion
+      (if file
+	  (find-file file))
+      (prog1
+	  (cond
+	   ((not (lm-summary))
+	    "Can't find a package summary")
+	   ((not (lm-code-mark))
+	    "Can't find a code section marker")
+	   ((progn
+	      (goto-char (point-max))
+	      (forward-line -1)
+	      (looking-at (concat ";;; " file "ends here")))
+	    "Can't find a footer line")
+	   )
+	(if file
+	    (kill-buffer (current-buffer)))))))
+
+(defun lm-synopsis (&optional file showall)
+  "Generate a synopsis listing for the buffer or the given FILE if given.
+If FILE is a directory, recurse on its files and generate a report into
+a temporary buffer.  If SHOWALL is on, also generate a line for files
+which do not include a recognizable synopsis."
+  (if (and file (file-directory-p file))
+      (progn
+	(switch-to-buffer (get-buffer-create "*lm-verify*"))
+	(erase-buffer)
+	(mapcar
+	 (function
+	  (lambda (f)
+	    (if (string-match ".*\\.el$" f)
+		(let ((syn (lm-synopsis f)))
+		  (if syn
+		      (progn
+			(insert f ":")
+			(insert-at-column lm-comment-column syn "\n"))
+		    (and showall
+			 (progn
+			   (insert f ":")
+			   (insert-at-column lm-comment-column "NA\n"))))))))
+	 (directory-files file)))
+    (save-excursion
+      (if file
+	  (find-file file))
+      (prog1
+	  (lm-summary)
+	(if file
+	    (kill-buffer (current-buffer)))))))
+
+(defun lm-report-bug (topic)
+  "Report a bug in the package currently being visited to its maintainer.
+Prompts for bug subject.  Leaves you in a mail buffer."
+  (interactive "sBug Subject: ")
+  (let ((package (buffer-name))
+	(addr (lm-maintainer))
+	(version (lm-version)))
+    (mail nil
+	  (if addr
+	      (concat (car addr) " <" (cdr addr) ">")
+	    bug-gnu-emacs)
+	  topic)
+    (goto-char (point-max))
+    (insert "\nIn "
+	    package
+	    (if version (concat " version " version) "")
+	    "\n\n")
+    (message
+     (substitute-command-keys "Type \\[mail-send] to send bug report."))))
+
+(provide 'lisp-mnt)
+
+;;; lisp-mnt.el ends here