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- ;; Read in and display parts of Unix manual.
- ;; Copyright (C) 1985, 1986 Free Software Foundation, Inc.
-
- ;; 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 1, 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, 675 Mass Ave, Cambridge, MA 02139, USA.
-
- (defun manual-entry (topic &optional section)
- "Display the Unix manual entry for TOPIC.
- TOPIC is either the title of the entry, or has the form TITLE(SECTION)
- where SECTION is the desired section of the manual, as in `tty(4)'."
- (interactive "sManual entry (topic): ")
- (if (and (null section)
- (string-match "\\`[ \t]*\\([^( \t]+\\)[ \t]*(\\(.+\\))[ \t]*\\'" topic))
- (setq section (substring topic (match-beginning 2)
- (match-end 2))
- topic (substring topic (match-beginning 1)
- (match-end 1))))
- (with-output-to-temp-buffer "*Manual Entry*"
- (buffer-flush-undo standard-output)
- (save-excursion
- (set-buffer standard-output)
- (message "Looking for formatted entry for %s%s..."
- topic (if section (concat "(" section ")") ""))
- (let ((dirlist manual-formatted-dirlist)
- (case-fold-search nil)
- name)
- (if (and section (or (file-exists-p
- (setq name (concat manual-formatted-dir-prefix
- (substring section 0 1)
- "/"
- topic "." section)))
- (file-exists-p
- (setq name (concat manual-formatted-dir-prefix
- section
- "/"
- topic "." section)))))
- (insert-man-file name)
- (while dirlist
- (let* ((dir (car dirlist))
- (name1 (concat dir "/" topic "."
- (or section
- (substring
- dir
- (1+ (or (string-match "\\.[^./]*$" dir)
- -2))))))
- completions)
- (if (file-exists-p name1)
- (insert-man-file name1)
- (condition-case ()
- (progn
- (setq completions (file-name-all-completions
- (concat topic "." (or section ""))
- dir))
- (while completions
- (insert-man-file (concat dir "/" (car completions)))
- (setq completions (cdr completions))))
- (file-error nil)))
- (goto-char (point-max)))
- (setq dirlist (cdr dirlist)))))
-
- (if (= (buffer-size) 0)
- (progn
- (message "No formatted entry, invoking man %s%s..."
- (if section (concat section " ") "") topic)
- (if section
- (call-process manual-program nil t nil section topic)
- (call-process manual-program nil t nil topic))
- (if (< (buffer-size) 80)
- (progn
- (goto-char (point-min))
- (end-of-line)
- (error (buffer-substring 1 (point)))))))
-
- (message "Cleaning manual entry for %s..." topic)
- (nuke-nroff-bs)
- (set-buffer-modified-p nil)
- (message ""))))
-
- ;; Hint: BS stands form more things than "back space"
- (defun nuke-nroff-bs ()
- (interactive "*")
- ;; Nuke underlining and overstriking (only by the same letter)
- (goto-char (point-min))
- (while (search-forward "\b" nil t)
- (let* ((preceding (char-after (- (point) 2)))
- (following (following-char)))
- (cond ((= preceding following)
- ;; x\bx
- (delete-char -2))
- ((= preceding ?\_)
- ;; _\b
- (delete-char -2))
- ((= following ?\_)
- ;; \b_
- (delete-region (1- (point)) (1+ (point)))))))
-
- ;; Nuke headers: "MORE(1) UNIX Programmer's Manual MORE(1)"
- (goto-char (point-min))
- (while (re-search-forward "^ *\\([A-Za-z][-_A-Za-z0-9]*([0-9A-Z]+)\\).*\\1$" nil t)
- (replace-match ""))
-
- ;; Nuke footers: "Printed 12/3/85 27 April 1981 1"
- ;; Sun appear to be on drugz:
- ;; "Sun Release 3.0B Last change: 1 February 1985 1"
- ;; HP are even worse!
- ;; " Hewlett-Packard -1- (printed 12/31/99)" FMHWA12ID!!
- ;; System V (well WICATs anyway):
- ;; "Page 1 (printed 7/24/85)"
- ;; Who is administering PCP to these corporate bozos?
- (goto-char (point-min))
- (while (re-search-forward
- (cond ((eq system-type 'hpux)
- "^[ \t]*Hewlett-Packard\\(\\| Company\\)[ \t]*- [0-9]* -.*$")
- ((eq system-type 'usg-unix-v)
- "^ *Page [0-9]*.*(printed [0-9/]*)$")
- (t
- "^\\(Printed\\|Sun Release\\) [0-9].*[0-9]$"))
- nil t)
- (replace-match ""))
-
- ;; Crunch blank lines
- (goto-char (point-min))
- (while (re-search-forward "\n\n\n\n*" nil t)
- (replace-match "\n\n"))
-
- ;; Nuke blanks lines at start.
- (goto-char (point-min))
- (skip-chars-forward "\n")
- (delete-region (point-min) (point)))
-
-
- (defun insert-man-file (name)
- ;; Insert manual file (unpacked as necessary) into buffer
- (if (or (equal (substring name -2) ".Z")
- (string-match "/cat[0-9][a-z]?\\.Z/" name))
- (call-process "zcat" name t nil)
- (if (equal (substring name -2) ".z")
- (call-process "pcat" nil t nil name)
- (insert-file-contents name))))
-