;;; idlw-help.el --- HTML Help code for IDLWAVE
-;; Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
-;; Free Software Foundation, Inc.
+;; Copyright (C) 2000-2011 Free Software Foundation, Inc.
;;
;; Authors: J.D. Smith <jdsmith@as.arizona.edu>
;; Carsten Dominik <dominik@science.uva.nl>
;; Maintainer: J.D. Smith <jdsmith@as.arizona.edu>
-;; Version: 6.1_em22
+;; Version: 6.1.22
+;; Package: idlwave
;; This file is part of GNU Emacs.
;;; Code:
(defvar idlwave-help-browse-url-available t
- "Whether browse-url is available")
+ "Whether browse-url is available.")
(require 'browse-url)
(if idlwave-html-help-pre-v6 "#" "#wp"))
(defcustom idlwave-html-system-help-location "help/online_help/"
- "The directory, relative to idlwave-system-directory, where the idl
+ "The directory, relative to `idlwave-system-directory', where the IDL
HTML help files live, for IDL 6.2 and later. This location, if found,
-is used in preference to the old idlwave-html-help-location."
+is used in preference to the old `idlwave-html-help-location'."
:group 'idlwave-online-help
:type 'directory)
nil
"/usr/local/etc/")
"The directory where the idl_html_help/ dir lives. Obsolete for IDL
-6.2 or later (see idlwave-html-system-help-location)."
+6.2 or later (see `idlwave-html-system-help-location')."
:group 'idlwave-online-help
:type 'directory)
:type 'boolean)
(defcustom idlwave-help-browser-function browse-url-browser-function
- "Function to use to display html help.
+ "Function to use to display HTML help.
Defaults to `browse-url-browser-function', which see."
:group 'idlwave-online-help
:type 'function)
(defcustom idlwave-help-browser-generic-program browse-url-generic-program
- "Program to run if using browse-url-generic-program."
+ "Program to run if using `browse-url-generic-program'."
:group 'idlwave-online-help
:type 'string)
(defcustom idlwave-help-browser-generic-args
(if (boundp 'browse-url-generic-args)
browse-url-generic-args "")
- "Program args to use if using browse-url-generic-program."
+ "Program args to use if using `browse-url-generic-program'."
:group 'idlwave-online-help
:type 'string)
:type 'boolean)
(defvar idlwave-help-directory ""
- "Obsolete variable. See idlwave-html-help-location.")
+ "Obsolete variable. See `idlwave-html-help-location'.")
(defcustom idlwave-help-use-dedicated-frame t
"*Non-nil means, use a separate frame for Online Help if possible."
:type 'string)
(defface idlwave-help-link
- '((((class color)) (:foreground "Blue"))
- (t (:weight bold)))
+ '((t :inherit link))
"Face for highlighting links into IDLWAVE online help."
:group 'idlwave-online-help)
"The default width of the help frame.")
(defvar idlwave-html-help-is-available nil
- "Is the system online help text avaiable?")
+ "Is the system online help text available?")
(defvar idlwave-help-mode-line-indicator ""
- "Used for the special mode line in the idlwave-help-mode.")
+ "Used for the special mode line in the `idlwave-help-mode'.")
(defvar idlwave-help-window-configuration nil)
(defvar idlwave-help-special-topic-words nil) ; defined by get_rinfo
;; Define the key bindings for the Help application
-(defvar idlwave-help-mode-map (make-sparse-keymap)
- "The keymap used in idlwave-help-mode.")
-
-(define-key idlwave-help-mode-map "q" 'idlwave-help-quit)
-(define-key idlwave-help-mode-map "w" 'widen)
-(define-key idlwave-help-mode-map "\C-m" (lambda (arg)
- (interactive "p")
- (scroll-up arg)))
-(define-key idlwave-help-mode-map " " 'scroll-up)
-(define-key idlwave-help-mode-map [delete] 'scroll-down)
-(define-key idlwave-help-mode-map "h" 'idlwave-help-find-header)
-(define-key idlwave-help-mode-map "H" 'idlwave-help-find-first-header)
-(define-key idlwave-help-mode-map "." 'idlwave-help-toggle-header-match-and-def)
-(define-key idlwave-help-mode-map "F" 'idlwave-help-fontify)
-(define-key idlwave-help-mode-map "\M-?" 'idlwave-help-return-to-calling-frame)
-(define-key idlwave-help-mode-map "x" 'idlwave-help-return-to-calling-frame)
+(defvar idlwave-help-mode-map
+ (let ((map (make-sparse-keymap)))
+ (define-key map "q" 'idlwave-help-quit)
+ (define-key map "w" 'widen)
+ (define-key map "\C-m" (lambda (arg)
+ (interactive "p")
+ (scroll-up arg)))
+ (define-key map " " 'scroll-up-command)
+ (define-key map [delete] 'scroll-down-command)
+ (define-key map "h" 'idlwave-help-find-header)
+ (define-key map "H" 'idlwave-help-find-first-header)
+ (define-key map "." 'idlwave-help-toggle-header-match-and-def)
+ (define-key map "F" 'idlwave-help-fontify)
+ (define-key map "\M-?" 'idlwave-help-return-to-calling-frame)
+ (define-key map "x" 'idlwave-help-return-to-calling-frame)
+ map)
+ "The keymap used in `idlwave-help-mode'.")
;; Define the menu for the Help application
(declare-function idlwave-what-module-find-class "idlwave")
(declare-function idlwave-where "idlwave")
-(defun idlwave-help-mode ()
+(define-derived-mode idlwave-help-mode special-mode "IDLWAVE Help"
"Major mode for displaying IDL Help.
This is a VIEW mode for the ASCII version of IDL Help files,
Fontification: [F]ontify the buffer like source code
Jump: [h] to function doclib header
[H] to file doclib header
- [.] back and forward between header and definition
+ [.] back and forth between header and definition
Here are all keybindings.
\\{idlwave-help-mode-map}"
- (kill-all-local-variables)
(buffer-disable-undo)
- (setq major-mode 'idlwave-help-mode
- mode-name "IDLWAVE Help")
- (use-local-map idlwave-help-mode-map)
(easy-menu-add idlwave-help-menu idlwave-help-mode-map)
(setq truncate-lines t)
(setq case-fold-search t)
(setq buffer-read-only t)
(set (make-local-variable 'idlwave-help-def-pos) nil)
(set (make-local-variable 'idlwave-help-args) nil)
- (set (make-local-variable 'idlwave-help-in-header) nil)
- (run-hooks 'idlwave-help-mode-hook))
+ (set (make-local-variable 'idlwave-help-in-header) nil))
(defun idlwave-html-help-location ()
"Return the help directory where HTML files are, or nil if that is unknown."
(message "Cannot locate IDL Assistant, enabling default browser.")
(setq idlwave-help-use-assistant nil)
(unless idlwave-help-browse-url-available
- (error "browse-url is not available; install it or IDL Assistant to use HTML help.")))))
+ (error "browse-url is not available; install it or IDL Assistant to use HTML help")))))
(defvar idlwave-current-obj_new-class)
(defvar idlwave-experimental)
(defvar idlwave-last-context-help-pos)
(defun idlwave-do-context-help (&optional arg)
- "Wrapper around the call to idlwave-context-help1.
+ "Wrapper around the call to `idlwave-do-context-help1'.
It collects and prints the diagnostics messages."
(let ((marker (list (current-buffer) (point)))
(idlwave-help-diagnostics nil))
(let* ((cw (selected-window))
(info idlwave-completion-help-info) ; global passed in
(what (nth 0 info))
- (name (nth 1 info))
+ (idlw-help-name (nth 1 info))
(type (nth 2 info))
(class (nth 3 info))
(need-class class)
- (kwd (nth 4 info))
+ (idlw-help-kwd (nth 4 info))
(sclasses (nth 5 info))
- word link)
+ word idlw-help-link)
(mouse-set-point ev)
(setq word (idlwave-this-word))
(if (string= word "")
(error "No help item selected"))
- (setq link (get-text-property 0 'link word))
+ (setq idlw-help-link (get-text-property 0 'link word))
(select-window cw)
(cond
;; Routine name
((memq what '(procedure function routine))
- (setq name word)
+ (setq idlw-help-name word)
(if (or (eq class t)
(and (stringp class) sclasses))
(let* ((classes (idlwave-all-method-classes
- (idlwave-sintern-method name)
+ (idlwave-sintern-method idlw-help-name)
type)))
- (setq link t) ; No specific link valid yet
+ (setq idlw-help-link t) ; No specific link valid yet
(if sclasses
(setq classes (idlwave-members-only
classes (cons class sclasses))))
;; XXX is this necessary, given all-method-classes?
(if (stringp class)
(setq class (idlwave-find-inherited-class
- (idlwave-sintern-routine-or-method name class)
+ (idlwave-sintern-routine-or-method idlw-help-name class)
type (idlwave-sintern-class class)))))
;; Keyword
((eq what 'keyword)
- (setq kwd word)
+ (setq idlw-help-kwd word)
(if (or (eq class t)
(and (stringp class) sclasses))
(let ((classes (idlwave-all-method-keyword-classes
- (idlwave-sintern-method name)
- (idlwave-sintern-keyword kwd)
+ (idlwave-sintern-method idlw-help-name)
+ (idlwave-sintern-keyword idlw-help-kwd)
type)))
- (setq link t) ; Link can't be correct yet
+ (setq idlw-help-link t) ; Link can't be correct yet
(if sclasses
(setq classes (idlwave-members-only
classes (cons class sclasses))))
;; XXX is this necessary, given all-method-keyword-classes?
(if (stringp class)
(setq class (idlwave-find-inherited-class
- (idlwave-sintern-routine-or-method name class)
+ (idlwave-sintern-routine-or-method
+ idlw-help-name class)
type (idlwave-sintern-class class)))))
- (if (string= (downcase name) "obj_new")
+ (if (string= (downcase idlw-help-name) "obj_new")
(setq class idlwave-current-obj_new-class
- name "Init"))))
+ idlw-help-name "Init"))))
;; Class name
((eq what 'class)
(funcall what 'set word))
(t (error "Cannot help with this item")))
- (if (and need-class (not class) (not (and link (not (eq link t)))))
+ (if (and need-class (not class)
+ (not (and idlw-help-link (not (eq idlw-help-link t)))))
(error "Cannot help with this item"))
- (idlwave-online-help link (or name word) type class kwd)))
+ (idlwave-online-help idlw-help-link (or idlw-help-name word)
+ type class idlw-help-kwd)))
(defvar idlwave-highlight-help-links-in-completion)
(defvar idlwave-completion-help-links)
;; we kill the help frame before the return-frame is selected.
;; To protect the workings, we wait for up to one second
;; and check if the return-frame *is* now selected.
- ;; This is marked "eperimental" since we are not sure when its OK.
+ ;; This is marked "experimental" since we are not sure when
+ ;; it's OK.
(let ((maxtime 1.0) (time 0.) (step 0.1))
(select-frame idlwave-help-return-frame)
(while (and (sit-for step)
"Display HTML or other special help on a certain topic.
Either loads an HTML link, if LINK is non-nil, or gets special-help on
the optional arguments, if any special help is defined. If LINK is
-`t', first look up the optional arguments in the routine info list to
+t, first look up the optional arguments in the routine info list to
see if a link is set for it. Try extra help functions if necessary."
;; Lookup link
(if (eq link t)
(defun idlwave-help-get-special-help (name type class keyword)
"Call the function given by `idlwave-extra-help-function'."
(let* ((cw (selected-window))
- (help-pos (save-excursion
- (set-buffer (idlwave-help-get-help-buffer))
+ (help-pos (with-current-buffer (idlwave-help-get-help-buffer)
(let ((buffer-read-only nil))
(funcall idlwave-extra-help-function
name type class keyword)))))
(select-window cw)))
(defun idlwave-help-html-link (link)
- "Get html help on a given LINK."
+ "Get HTML help on a given LINK."
(let ((browse-url-browser-function idlwave-help-browser-function)
(help-loc (idlwave-html-help-location))
(browse-url-generic-program idlwave-help-browser-generic-program)
;; Just a regular file name (+ anchor name)
(unless (and (stringp help-loc)
(file-directory-p help-loc))
- (error "Invalid help location."))
+ (error "Invalid help location"))
(setq full-link (browse-url-file-url (expand-file-name link help-loc)))
;; Select the browser
((or idlwave-help-browser-is-local
(string-match "w3" (symbol-name idlwave-help-browser-function)))
- (idlwave-help-display-help-window '(lambda () (browse-url full-link))))
+ (idlwave-help-display-help-window (lambda () (browse-url full-link))))
(t (browse-url full-link)))))
(defvar idlwave-current-tags-buffer)
(defvar idlwave-current-tags-class)
(defun idlwave-help-with-source (name type class keyword)
- "Provide help for routines not documented in the IDL manuals. Works
-by loading the routine source file into the help buffer. Depending on
-the value of `idlwave-help-source-try-header', it attempts to show the
-routine definition or the header description. If
-`idlwave-help-do-class-struct-tag' is non-nil, keyword is a tag to
-show help on from the class definition structure. If
-`idlwave-help-do-struct-tag' is non-nil, show help from the matching
-structure tag definition.
+ "Provide help for routines not documented in the IDL manuals.
+Works by loading the routine source file into the help buffer.
+Depending on the value of `idlwave-help-source-try-header', it
+attempts to show the routine definition or the header description.
+If `idlwave-help-do-class-struct-tag' is non-nil, keyword is a tag
+to show help on from the class definition structure.
+If `idlwave-help-do-struct-tag' is non-nil, show help from the
+matching structure tag definition.
This function can be used as `idlwave-extra-help-function'."
(let* ((class-struct-tag idlwave-help-do-class-struct-tag)
(defun idlwave-help-find-routine-definition (name type class keyword)
"Find the definition of routine CLASS::NAME in current buffer.
-KEYWORD is ignored. Returns the point of match if successful, nil otherwise."
+Returns the point of match if successful, nil otherwise.
+KEYWORD is ignored."
(save-excursion
(goto-char (point-max))
(if (re-search-backward
be found. TYPE is ignored.
This function expects a more or less standard routine header. In
-particlar it looks for the `NAME:' tag, either with a colon, or alone
+particular it looks for the `NAME:' tag, either with a colon, or alone
on a line. Then `NAME:' must be followed by the routine name on the
same or the next line. When KEYWORD is non-nil, looks first for a
-`KEYWORDS' section. It is amazing how inconsisten this is through
+`KEYWORDS' section. It is amazing how inconsistent this is through
some IDL libraries I have seen. We settle for a line containing an
-upper case \"KEYWORD\" string. If this line is not fould we search
+upper case \"KEYWORD\" string. If this line is not found we search
for the keyword anyway to increase the hit-rate
When one of these sections exists we check for a line starting with any of
"(help location unknown)")))
(defun idlwave-help-show-help-frame ()
- "Show the help frame, creating it if necessary"
+ "Show the help frame, creating it if necessary."
;; Use a special frame for this
(unless (frame-live-p idlwave-help-frame)
(setq idlwave-help-frame
(if buf
nil
(setq buf (get-buffer-create "*IDLWAVE Help*"))
- (save-excursion
- (set-buffer buf)
+ (with-current-buffer buf
(idlwave-help-mode)))
buf))
(if (memq system-type '(ms-dos windows-nt))
"bin/bin.x86/idl_assistant.exe"
"bin/idl_assistant")
- "The command, rooted at idlwave-system-directory, which invokes the
+ "The command, rooted at `idlwave-system-directory', which invokes the
IDL assistant.")
(defun idlwave-help-assistant-available ()
(unless (accept-process-output idlwave-help-assistant-process 15)
(error "Failed binding IDL_ASSISTANT socket"))
(if (not port)
- (error "Unable to open IDL_ASSISTANT.")
+ (error "Unable to open IDL_ASSISTANT")
(set-process-filter idlwave-help-assistant-process nil)
(setq idlwave-help-assistant-socket
(open-network-stream "IDL_ASSISTANT_SOCK"
(if (string-match "\.html" link)
(setq topic (substring link 0 (match-beginning 0))
anchor (substring link (match-end 0)))
- (error "Malformed help link."))
+ (error "Malformed help link"))
(setq file (expand-file-name (concat topic ".html") help-loc))
(if (file-exists-p file)
(provide 'idlw-help)
(provide 'idlwave-help)
-;; arch-tag: d27b5505-59de-497f-ba3f-f199fd4fb911
;;; idlw-help.el ends here
HCoop / bpt / emacs.git / blobdiff