X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/101dad14a510c0420ed7009b8c271b4cce579817..66495b0787f38fbdc316bfd60e54a02cdf362d3b:/lisp/finder.el diff --git a/lisp/finder.el b/lisp/finder.el index 81b88e65f0..07d79f8422 100644 --- a/lisp/finder.el +++ b/lisp/finder.el @@ -1,6 +1,6 @@ ;;; finder.el --- topic & keyword-based code finder -;; Copyright (C) 1992 Free Software Foundation, Inc. +;; Copyright (C) 1992, 1997, 1998 Free Software Foundation, Inc. ;; Author: Eric S. Raymond ;; Created: 16 Jun 1992 @@ -11,7 +11,7 @@ ;; 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) +;; 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, @@ -20,8 +20,9 @@ ;; 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. +;; 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: @@ -39,29 +40,40 @@ (require 'lisp-mnt) (require 'finder-inf) -(require 'picture) + +;; Local variable in finder buffer. +(defvar finder-headmark) (defvar finder-known-keywords '( (abbrev . "abbreviation handling, typing shortcuts, macros") - (bib . "code related to the bib(1) bibliography processor") - (c . "C and C++ language support") + (bib . "code related to the `bib' bibliography processor") + (c . "support for the C language and related languages") (calendar . "calendar and time management support") (comm . "communications, networking, remote access to files") + (convenience . "convenience features for faster editing") + (data . "support editing files of data") (docs . "support for Emacs documentation") (emulations . "emulations of other editors") (extensions . "Emacs Lisp language extensions") + (faces . "support for multiple fonts") + (frames . "support for Emacs frames and window systems") (games . "games, jokes and amusements") (hardware . "support for interfacing with exotic hardware") (help . "support for on-line help systems") - (i14n . "internationalization and alternate character-set support") + (hypermedia . "support for links between text or other media types") + (i18n . "internationalization and alternate character-set support") (internal . "code for Emacs internals, build process, defaults") (languages . "specialized modes for editing programming languages") (lisp . "Lisp support, including Emacs Lisp") (local . "code local to your site") (maint . "maintenance aids for the Emacs development group") (mail . "modes for electronic-mail handling") + (matching . "various sorts of searching and matching") + (mouse . "mouse support") (news . "support for netnews reading and posting") + (oop . "support for object-oriented programming") + (outlines . "support for hierarchical outlining") (processes . "process, subshell, compilation, and job control support") (terminals . "support for terminal types") (tex . "code related to the TeX formatter") @@ -72,14 +84,17 @@ )) (defvar finder-mode-map nil) -;(if finder-mode-map -; nil - (setq finder-mode-map (make-sparse-keymap)) - (define-key finder-mode-map " " 'finder-select) - (define-key finder-mode-map "?" 'finder-summary) - (define-key finder-mode-map "x" 'finder-exit) - (define-key finder-mode-map "f" 'finder-list-keywords) -; ) +(or finder-mode-map + (let ((map (make-sparse-keymap))) + (define-key map " " 'finder-select) + (define-key map "f" 'finder-select) + (define-key map [mouse-2] 'finder-mouse-select) + (define-key map "\C-m" 'finder-select) + (define-key map "?" 'finder-summary) + (define-key map "q" 'finder-exit) + (define-key map "d" 'finder-list-keywords) + (setq finder-mode-map map))) + ;;; Code for regenerating the keyword list. @@ -87,7 +102,7 @@ "Assoc list mapping file names to description & keyword lists.") (defun finder-compile-keywords (&rest dirs) - "Regenerate the keywords association list into the file finder-inf.el. + "Regenerate the keywords association list into the file `finder-inf.el'. Optional arguments are a list of Emacs Lisp directories to compile from; no arguments compiles from `load-path'." (save-excursion @@ -101,23 +116,35 @@ arguments compiles from `load-path'." (insert ";;; Code:\n") (insert "\n(setq finder-package-info '(\n") (mapcar - (function - (lambda (d) - (mapcar - (function + (lambda (d) + (when (file-exists-p (directory-file-name d)) + (message "Directory %s" d) + (mapcar (lambda (f) - (if (and (string-match "\\.el$" f) (not (member f processed))) - (let (summary keystart) + (if (and (or (string-match "^[^=].*\\.el$" f) + ;; Allow compressed files also. Fixme: + ;; generalize this, especially for + ;; MS-DOG-type filenames. + (and (string-match "^[^=].*\\.el\\.\\(gz\\|Z\\)$" f) + (require 'jka-compr))) + ;; Ignore lock files. + (not (string-match "^.#" f)) + (not (member f processed))) + (let (summary keystart keywords) (setq processed (cons f processed)) (save-excursion (set-buffer (get-buffer-create "*finder-scratch*")) + (buffer-disable-undo (current-buffer)) (erase-buffer) (insert-file-contents (concat (file-name-as-directory (or d ".")) f)) (setq summary (lm-synopsis)) (setq keywords (lm-keywords))) (insert - (format " (\"%s\"\n " f)) + (format " (\"%s\"\n " + (if (string-match "\\.\\(gz\\|Z\\)$" f) + (file-name-sans-extension f) + f))) (prin1 summary (current-buffer)) (insert "\n ") @@ -126,54 +153,74 @@ arguments compiles from `load-path'." (if keywords (format "(%s)" keywords) "nil") ")\n") (subst-char-in-region keystart (point) ?, ? ) - ) - ))) - (directory-files (or d "."))) - )) + ))) + (directory-files (or d "."))))) (or dirs load-path)) (insert "))\n\n(provide 'finder-inf)\n\n;;; finder-inf.el ends here\n") (kill-buffer "*finder-scratch*") (eval-current-buffer) ;; So we get the new keyword list immediately - (basic-save-buffer) - ))) + (basic-save-buffer)))) + +(defun finder-compile-keywords-make-dist () + "Regenerate `finder-inf.el' for the Emacs distribution." + (apply 'finder-compile-keywords command-line-args-left) + (kill-emacs)) ;;; Now the retrieval code +(defun finder-insert-at-column (column &rest strings) + "Insert, at column COLUMN, other args STRINGS." + (if (> (current-column) column) (insert "\n")) + (move-to-column column t) + (apply 'insert strings)) + +(defun finder-mouse-face-on-line () + "Put a `mouse-face' property on the previous line." + (save-excursion + (previous-line 1) + (put-text-property (save-excursion (beginning-of-line) (point)) + (progn (end-of-line) (point)) + 'mouse-face 'highlight))) + (defun finder-list-keywords () "Display descriptions of the keywords in the Finder buffer." (interactive) - (setq buffer-read-only nil) - (erase-buffer) - (mapcar - (function (lambda (assoc) - (let ((keyword (car assoc))) - (insert (symbol-name keyword)) - (insert-at-column 14 (concat (cdr assoc) "\n")) - (cons (symbol-name keyword) keyword)))) - finder-known-keywords) - (goto-char (point-min)) - (setq headmark (point)) - (setq buffer-read-only t) - (set-buffer-modified-p nil) - (balance-windows) - (finder-summary)) + (if (get-buffer "*Finder*") + (pop-to-buffer "*Finder*") + (pop-to-buffer (set-buffer (get-buffer-create "*Finder*"))) + (finder-mode) + (setq buffer-read-only nil) + (erase-buffer) + (mapcar + (lambda (assoc) + (let ((keyword (car assoc))) + (insert (symbol-name keyword)) + (finder-insert-at-column 14 (concat (cdr assoc) "\n")) + (finder-mouse-face-on-line))) + finder-known-keywords) + (goto-char (point-min)) + (setq finder-headmark (point)) + (setq buffer-read-only t) + (set-buffer-modified-p nil) + (balance-windows) + (finder-summary))) (defun finder-list-matches (key) + (pop-to-buffer (set-buffer (get-buffer-create "*Finder Category*"))) + (finder-mode) (setq buffer-read-only nil) (erase-buffer) (let ((id (intern key))) (insert "The following packages match the keyword `" key "':\n\n") - (setq headmark (point)) + (setq finder-headmark (point)) (mapcar - (function (lambda (x) - (if (memq id (car (cdr (cdr x)))) - (progn - (insert (car x)) - (insert-at-column 16 - (concat (car (cdr x)) "\n")) - )) - )) + (lambda (x) + (if (memq id (car (cdr (cdr x)))) + (progn + (insert (car x)) + (finder-insert-at-column 16 (concat (nth 1 x) "\n")) + (finder-mouse-face-on-line)))) finder-package-info) (goto-char (point-min)) (forward-line) @@ -182,11 +229,22 @@ arguments compiles from `load-path'." (shrink-window-if-larger-than-buffer) (finder-summary))) +;; Search for a file named FILE on `load-path', also trying compressed +;; versions if jka-compr is in use. +(defun finder-find-library (library) + (or (locate-library library t) + (if (rassq 'jka-compr-handler file-name-handler-alist) + (or (locate-library (concat library ".gz") t) + (locate-library (concat library ".Z") t) + ;; last resort for MS-DOG et al + (locate-library (concat library "z")))))) + (defun finder-commentary (file) + "Display FILE's commentary section." (interactive) - (let* ((str (lm-commentary file))) + (let* ((str (lm-commentary (finder-find-library file)))) (if (null str) - (error "Can't find any Commentary section.")) + (error "Can't find any Commentary section")) (pop-to-buffer "*Finder*") (setq buffer-read-only nil) (erase-buffer) @@ -202,58 +260,69 @@ arguments compiles from `load-path'." (setq buffer-read-only t) (set-buffer-modified-p nil) (shrink-window-if-larger-than-buffer) - (finder-summary) - )) + (finder-summary))) (defun finder-current-item () - (if (and headmark (< (point) headmark)) + (if (and finder-headmark (< (point) finder-headmark)) (error "No keyword or filename on this line") (save-excursion (beginning-of-line) (current-word)))) (defun finder-select () + "Select item on current line in a finder buffer." (interactive) (let ((key (finder-current-item))) - (if (string-match "\\.el$" key) - (finder-commentary key) - (finder-list-matches key)))) + (if (string-match "\\.el$" key) + (finder-commentary key) + (finder-list-matches key)))) + +(defun finder-mouse-select (event) + "Select item in a finder buffer with the mouse." + (interactive "e") + (save-excursion + (set-buffer (window-buffer (posn-window (event-start event)))) + (goto-char (posn-point (event-start event))) + (finder-select))) (defun finder-by-keyword () "Find packages matching a given keyword." (interactive) - (finder-mode) (finder-list-keywords)) (defun finder-mode () "Major mode for browsing package documentation. - +\\ \\[finder-select] more help for the item on the current line -\\[finder-exit] exit Finder mode and fill the Finder buffer. +\\[finder-exit] exit Finder mode and kill the Finder buffer. " (interactive) - (pop-to-buffer "*Finder*") - (setq buffer-read-only nil) - (erase-buffer) (use-local-map finder-mode-map) (set-syntax-table emacs-lisp-mode-syntax-table) (setq mode-name "Finder") (setq major-mode 'finder-mode) - (make-local-variable 'headmark) - (setq headmark nil) -) + (make-local-variable 'finder-headmark) + (setq finder-headmark nil)) (defun finder-summary () "Summarize basic Finder commands." (interactive) - (message - "SPC = select, f = back to Finder, x = eXit, ? = help")) + (message "%s" + (substitute-command-keys + "\\\\[finder-select] = select, \ +\\[finder-mouse-select] = select, \\[finder-list-keywords] = to \ +finder directory, \\[finder-exit] = quit, \\[finder-summary] = help"))) (defun finder-exit () - "Exit Finder mode and kill the buffer" + "Exit Finder mode and kill the buffer." (interactive) - (delete-window) - (kill-buffer "*Finder*")) + (or (one-window-p t) + (delete-window)) + ;; Can happen in either buffer -- kill each of the two that exists + (and (get-buffer "*Finder*") + (kill-buffer "*Finder*")) + (and (get-buffer "*Finder Category*") + (kill-buffer "*Finder Category*"))) (provide 'finder)