update from main archive 970417libc20x-970417glibc-2_0_4

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diff --git a/lisp/emacs-lisp/lisp-mnt.el b/lisp/emacs-lisp/lisp-mnt.el
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--- a/lisp/emacs-lisp/lisp-mnt.el
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-;;; lisp-mnt.el --- minor mode for Emacs Lisp maintainers
-
-;; Copyright (C) 1992, 1994 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 1.16 1996/02/06 21:35:20 erik Exp rms $
-;; Keywords: docs
-;; X-Bogus-Bureaucratic-Cruft: Gruad will get you if you don't watch out!
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs 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.
-
-;; GNU Emacs 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 GNU Emacs; see the file COPYING.  If not, write to
-;; the Free Software Foundation,  Inc., 59 Temple Place - Suite 330,
-;; Boston, MA 02111-1307, USA.
-
-;;; 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)
-
-;;; Variables:
-
-(defvar lm-header-prefix "^;;*[ \t]+\\(@\(#\)\\)?[ \t]*\\([\$]\\)?"
-  "Prefix that is ignored before the tag.
-For example, you can write the 1st line synopsis string and headers like this
-in your Lisp package:
-
-   ;; @(#) package.el -- pacakge description
-   ;;
-   ;; @(#) $Maintainer:   Person Foo Bar $
-
-The @(#) construct is used by unix what(1) and
-then $identifier: doc string $ is used by GNU ident(1)")
-
-(defvar lm-comment-column 16
-  "Column used for placing formatted output.")
-
-(defvar lm-commentary-header "Commentary\\|Documentation"
-  "Regexp which matches start of documentation section.")
-
-(defvar lm-history-header "Change Log\\|History"
-  "Regexp which matches the start of code log section.")
-
-;;; Functions:
-
-;; These functions all parse the headers of the current buffer
-
-(defsubst lm-get-header-re (header &optional mode)
-  "Returns regexp for matching HEADER.
-If called with optional MODE and with value `section',
-return section regexp instead."
-  (cond ((eq mode 'section)
-	 (concat "^;;;;* " header ":[ \t]*$"))
-	(t
-	 (concat lm-header-prefix header ":[ \t]*"))))
-
-(defsubst lm-get-package-name ()
-  "Returns package name by looking at the first line."
-  (save-excursion
-    (goto-char (point-min))
-    (if (and (looking-at (concat lm-header-prefix))
-	     (progn (goto-char (match-end 0))
-		    (looking-at "\\([^\t ]+\\)")
-		    (match-end 1)))
-	(buffer-substring (match-beginning 1) (match-end 1))
-      )))
-
-(defun lm-section-mark (header &optional after)
-  "Return the buffer location of a given section start marker.
-The HEADER is the section mark string to search for.
-If AFTER is non-nil, return the location of the next line."
-  (save-excursion
-    (let ((case-fold-search t))
-      (goto-char (point-min))
-      (if (re-search-forward (lm-get-header-re header 'section) nil t)
-	  (progn
-	    (beginning-of-line)
-	    (if after (forward-line 1))
-	    (point))
-	nil))))
-
-(defsubst lm-code-mark ()
-  "Return the buffer location of the `Code' start marker."
-  (lm-section-mark "Code"))
-
-(defsubst lm-commentary-mark ()
-  "Return the buffer location of the `Commentary' start marker."
-  (lm-section-mark lm-commentary-header))
-
-(defsubst lm-history-mark ()
-  "Return the buffer location of the `History' start marker."
-  (lm-section-mark lm-history-header))
-
-(defun lm-header (header)
-  "Return the contents of the header named HEADER."
-  (goto-char (point-min))
-  (let ((case-fold-search t))
-    (if (and (re-search-forward (lm-get-header-re header) (lm-code-mark) t)
-	     ;;   RCS ident likes format "$identifier: data$"
-	     (looking-at "\\([^$\n]+\\)")
-	     (match-end 1))
-	(buffer-substring (match-beginning 1) (match-end 1))
-      nil)))
-
-(defun lm-header-multiline (header)
-  "Return the contents of the header named HEADER, with continuation lines.
-The returned value is a list of strings, one per line."
-  (save-excursion
-    (goto-char (point-min))
-    (let ((res (lm-header header)))
-      (cond
-       (res
-	(setq res (list res))
-	(forward-line 1)
-
-	(while (and (looking-at (concat lm-header-prefix "[\t ]+"))
-		    (progn
-		      (goto-char (match-end 0))
-		      (looking-at "\\(.*\\)"))
-		    (match-end 1))
-	  (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 one-line summary of file FILE, or current buffer if FILE is nil."
-  (save-excursion
-    (if file
-	(find-file file))
-    (goto-char (point-min))
-    (prog1
-      (if (and
-	   (looking-at lm-header-prefix)
-	   (progn (goto-char (match-end 0))
-		  (looking-at "[^ ]+[ \t]+--+[ \t]+\\(.*\\)")))
-	  (buffer-substring (match-beginning 1) (match-end 1)))
-      (if file
-	  (kill-buffer (current-buffer)))
-      )))
-
-(defun lm-crack-address (x)
-  "Split up an email address into full name and real email address.
-The value is a cons of the form (FULLNAME . 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 author list of file FILE, or current buffer if FILE is nil.
-Each element of the list is a cons; the car is the full name,
-the cdr is an email address."
-  (save-excursion
-    (if file
-	(find-file file))
-    (let ((authorlist (lm-header-multiline "author")))
-      (prog1
-	 (mapcar 'lm-crack-address authorlist)
-	  (if file
-	      (kill-buffer (current-buffer)))
-	))))
-
-(defun lm-maintainer (&optional file)
-  "Return the maintainer of file FILE, or current buffer if FILE is nil.
-The return value has the form (NAME . ADDRESS)."
-  (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 the created date given in file FILE, or current buffer if FILE is nil."
-  (save-excursion
-    (if file
-	(find-file file))
-    (prog1
-	(lm-header "created")
-      (if file
-	  (kill-buffer (current-buffer)))
-      )))
-
-
-(defun lm-last-modified-date (&optional file)
-  "Return the modify-date given in file FILE, or current buffer if FILE is nil."
-  (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))
-		    ))
-      (if file
-	  (kill-buffer (current-buffer)))
-      )))
-
-(defun lm-version (&optional file)
-  "Return the version listed in file FILE, or current buffer if FILE is nil.
-This can befound in 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 keywords given in file FILE, or 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 adapted-by names in file FILE, or current buffer if FILE is nil.
-This is the name of the person who cleaned up this package for
-distribution."
-  (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 in file FILE, or current buffer if FILE is nil.
-The value is returned as a string.  In the text, the commentary starts
-with tag `Commentary' and ends with tag `Change Log' or `History'."
-  (save-excursion
-    (if file
-	(find-file file))
-    (prog1
-	(let ((commentary	(lm-commentary-mark))
-	      (change-log	(lm-history-mark))
-	      (code		(lm-code-mark))
-	      )
-	  (cond
-	   ((and commentary change-log)
-	    (buffer-substring commentary change-log))
-	   ((and commentary code)
-	    (buffer-substring commentary code))
-	   (t
-	    nil)))
-      (if file
-	  (kill-buffer (current-buffer)))
-      )))
-
-;;; Verification and synopses
-
-(defun lm-insert-at-column (col &rest strings)
-  "Insert list of STRINGS, at column COL."
-  (if (> (current-column) col) (insert "\n"))
-  (move-to-column-force col)
-  (apply 'insert strings))
-
-(defun lm-verify (&optional file showok &optional verb)
-  "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 in
-a temporary buffer."
-  (interactive)
-  (let* ((verb    (or verb (interactive-p)))
-	 ret
-	 name
-	 )
-    (if verb
-	(setq ret "Ok."))		;init value
-
-    (if (and file (file-directory-p file))
-	(setq
-	 ret
-	 (progn
-	   (switch-to-buffer (get-buffer-create "*lm-verify*"))
-	   (erase-buffer)
-	   (mapcar
-	    '(lambda (f)
-	       (if (string-match ".*\\.el$" f)
-		   (let ((status (lm-verify f)))
-		     (if status
-			 (progn
-			   (insert f ":")
-			   (lm-insert-at-column lm-comment-column status "\n"))
-		       (and showok
-			    (progn
-			      (insert f ":")
-			      (lm-insert-at-column lm-comment-column "OK\n")))))))
-	    (directory-files file))
-	   ))
-      (save-excursion
-	(if file
-	    (find-file file))
-	(setq name (lm-get-package-name))
-
-	(setq
-	 ret
-	 (prog1
-	     (cond
-	      ((null name)
-	       "Can't find a package NAME")
-
-	      ((not (lm-authors))
-	       "Author: tag missing.")
-
-	      ((not (lm-maintainer))
-	       "Maintainer: tag missing.")
-
-	      ((not (lm-summary))
-	       "Can't find a one-line 'Summary' description")
-
-	      ((not (lm-keywords))
-	       "Keywords: tag missing.")
-
-	      ((not (lm-commentary-mark))
-	       "Can't find a 'Commentary' section marker.")
-
-	      ((not (lm-history-mark))
-	       "Can't find a 'History' section marker.")
-
-	      ((not (lm-code-mark))
-	       "Can't find a 'Code' section marker")
-
-	      ((progn
-		 (goto-char (point-max))
-		 (not
-		  (re-search-backward
-		   (concat "^;;;[ \t]+" name "[ \t]+ends here[ \t]*$"
-			   "\\|^;;;[ \t]+ End of file[ \t]+" name)
-		   nil t
-		   )))
-	       (format "Can't find a footer line for [%s]" name))
-	      (t
-	       ret))
-	   (if file
-	       (kill-buffer (current-buffer)))
-	  ))))
-    (if verb
-	(message ret))
-    ret
-    ))
-
-(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 in
-a temporary buffer.  If SHOWALL is non-nil, also generate a line for files
-which do not include a recognizable synopsis."
-  (interactive
-   (list
-    (read-file-name "Synopsis for (file or dir): ")))
-
-  (if (and file (file-directory-p file))
-      (progn
-	(switch-to-buffer (get-buffer-create "*lm-verify*"))
-	(erase-buffer)
-	(mapcar
-	 '(lambda (f)
-	    (if (string-match ".*\\.el$" f)
-		(let ((syn (lm-synopsis f)))
-		  (if syn
-		      (progn
-			(insert f ":")
-			(lm-insert-at-column lm-comment-column syn "\n"))
-		    (and showall
-			 (progn
-			   (insert f ":")
-			   (lm-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	(lm-get-package-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
-