X-Git-Url: https://code.delx.au/gnu-emacs/blobdiff_plain/c07bb40b73856e3c40daf1dc6007ea13e3870912..4e603db3429957e6b26953c177f00a9c9d1c8766:/lisp/progmodes/idlw-help.el diff --git a/lisp/progmodes/idlw-help.el b/lisp/progmodes/idlw-help.el index 030b785acd..f6eff9c3cf 100644 --- a/lisp/progmodes/idlw-help.el +++ b/lisp/progmodes/idlw-help.el @@ -1,6 +1,6 @@ ;;; idlw-help.el --- HTML Help code for IDLWAVE -;; Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 +;; Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 ;; Free Software Foundation, Inc. ;; ;; Authors: J.D. Smith @@ -10,20 +10,18 @@ ;; This file is part of GNU Emacs. -;; This file is free software; you can redistribute it and/or modify +;; 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. +;; the Free Software Foundation, either version 3 of the License, or +;; (at your option) any later version. -;; This file is distributed in the hope that it will be useful, +;; 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., 51 Franklin Street, Fifth Floor, -;; Boston, MA 02110-1301, USA. +;; along with GNU Emacs. If not, see . ;;; Commentary: @@ -36,19 +34,16 @@ ;; information, at: ;; ;; http://idlwave.org -;; +;; ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; ;;; Code: -(defvar idlwave-help-browse-url-available nil - "Whether browse-url is available") +(defvar idlwave-help-browse-url-available t + "Whether browse-url is available.") -(setq idlwave-help-browse-url-available - (condition-case nil - (require 'browse-url) - (error nil))) +(require 'browse-url) (defgroup idlwave-online-help nil "Online Help options for IDLWAVE mode." @@ -59,27 +54,27 @@ :group 'idlwave-online-help :type 'boolean) -(defvar idlwave-html-link-sep +(defvar idlwave-html-link-sep (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) -(defcustom idlwave-html-help-location +(defcustom idlwave-html-help-location (if (memq system-type '(ms-dos windows-nt)) 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) (defvar idlwave-help-use-hh nil - "Obsolete variable.") + "Obsolete variable.") (defcustom idlwave-help-use-assistant t "Whether to use the IDL Assistant as the help browser." @@ -87,22 +82,22 @@ is used in preference to the old idlwave-html-help-location." :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) (defvar browse-url-generic-args) -(defcustom idlwave-help-browser-generic-args +(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) @@ -117,7 +112,7 @@ must be explicitly set non-nil in order for the variable :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." @@ -206,7 +201,7 @@ support." (defvar idlwave-help-activate-links-aggressively nil "Obsolete variable.") - + (defvar idlwave-completion-help-info) (defvar idlwave-help-frame nil @@ -215,10 +210,10 @@ support." "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 @@ -226,7 +221,7 @@ support." ;; Define the key bindings for the Help application (defvar idlwave-help-mode-map (make-sparse-keymap) - "The keymap used in idlwave-help-mode.") + "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) @@ -258,6 +253,39 @@ support." (defvar idlwave-help-def-pos) (defvar idlwave-help-args) (defvar idlwave-help-in-header) +(declare-function idlwave-prepare-structure-tag-completion "idlw-complete-structtag") +(declare-function idlwave-all-method-classes "idlwave") +(declare-function idlwave-all-method-keyword-classes "idlwave") +(declare-function idlwave-beginning-of-statement "idlwave") +(declare-function idlwave-best-rinfo-assoc "idlwave") +(declare-function idlwave-class-found-in "idlwave") +(declare-function idlwave-class-or-superclass-with-tag "idlwave") +(declare-function idlwave-completing-read "idlwave") +(declare-function idlwave-current-routine "idlwave") +(declare-function idlwave-downcase-safe "idlwave") +(declare-function idlwave-entry-find-keyword "idlwave") +(declare-function idlwave-expand-keyword "idlwave") +(declare-function idlwave-find-class-definition "idlwave") +(declare-function idlwave-find-inherited-class "idlwave") +(declare-function idlwave-find-struct-tag "idlwave") +(declare-function idlwave-get-buffer-visiting "idlwave") +(declare-function idlwave-in-quote "idlwave") +(declare-function idlwave-make-full-name "idlwave") +(declare-function idlwave-members-only "idlwave") +(declare-function idlwave-popup-select "idlwave") +(declare-function idlwave-routine-source-file "idlwave") +(declare-function idlwave-routines "idlwave") +(declare-function idlwave-sintern-class "idlwave") +(declare-function idlwave-sintern-keyword "idlwave") +(declare-function idlwave-sintern-method "idlwave") +(declare-function idlwave-sintern-routine-or-method "idlwave") +(declare-function idlwave-sintern-sysvar "idlwave" t t);idlwave-new-sintern-type +(declare-function idlwave-sintern-sysvartag "idlwave" t t) +(declare-function idlwave-substitute-link-target "idlwave") +(declare-function idlwave-sys-dir "idlwave") +(declare-function idlwave-this-word "idlwave") +(declare-function idlwave-what-module-find-class "idlwave") +(declare-function idlwave-where "idlwave") (defun idlwave-help-mode () "Major mode for displaying IDL Help. @@ -275,7 +303,7 @@ When the hep text is a source file, the following commands are available 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}" @@ -301,7 +329,7 @@ Here are all keybindings. (defun idlwave-html-help-location () "Return the help directory where HTML files are, or nil if that is unknown." - (let ((syshelp-dir (expand-file-name + (let ((syshelp-dir (expand-file-name idlwave-html-system-help-location (idlwave-sys-dir))) (help-dir (or (and (stringp idlwave-html-help-location) (> (length idlwave-html-help-location) 0) @@ -309,12 +337,12 @@ Here are all keybindings. (getenv "IDLWAVE_HELP_LOCATION")))) (if (and syshelp-dir (file-directory-p syshelp-dir)) syshelp-dir - (if help-dir + (if help-dir (progn (setq help-dir (expand-file-name "idl_html_help" help-dir)) (if (file-directory-p help-dir) help-dir)))))) - -(defvar idlwave-help-assistant-available nil) + +(defvar idlwave-help-assistant-available nil) (defun idlwave-help-check-locations () ;; Check help locations and assistant. @@ -331,7 +359,7 @@ Here are all keybindings. (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) @@ -339,7 +367,7 @@ Here are all keybindings. (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)) @@ -354,7 +382,7 @@ It collects and prints the diagnostics messages." (setq idlwave-last-context-help-pos marker) (idlwave-do-context-help1 arg) (if idlwave-help-diagnostics - (message "%s" (mapconcat 'identity + (message "%s" (mapconcat 'identity (nreverse idlwave-help-diagnostics) "; ")))))) @@ -367,7 +395,7 @@ It collects and prints the diagnostics messages." (defun idlwave-do-context-help1 (&optional arg) "The work-horse version of `idlwave-context-help', which see." (save-excursion - (if (equal (char-after) ?/) + (if (equal (char-after) ?/) (forward-char 1) (if (equal (char-before) ?=) (backward-char 1))) @@ -385,7 +413,7 @@ It collects and prints the diagnostics messages." (string-match "\\`\\([^.]+\\)\\." this-word) (< beg (- end 4)))) module keyword cw mod1 mod2 mod3) - (if (or arg + (if (or arg (and (not classtag) (not structtag) (not (member (string-to-char this-word) '(?! ?.))))) @@ -403,16 +431,16 @@ It collects and prints the diagnostics messages." (setq module (list "init" 'fun (match-string 1 str)) idlwave-current-obj_new-class (match-string 1 str)) ))))) - (cond + (cond (arg (setq mod1 module)) - + ;; A special topic -- only system help ((and st-ass (not (memq cw '(function-keyword procedure-keyword)))) (setq mod1 (list (cdr st-ass)))) - + ;; A system variable -- only system help - ((string-match - "\\`!\\([a-zA-Z0-9_]+\\)\\(\.\\([A-Za-z0-9_]+\\)\\)?" + ((string-match + "\\`!\\([a-zA-Z0-9_]+\\)\\(\.\\([A-Za-z0-9_]+\\)\\)?" this-word) (let* ((word (match-string-no-properties 1 this-word)) (entry (assq (idlwave-sintern-sysvar word) @@ -424,10 +452,10 @@ It collects and prints the diagnostics messages." (cdr (assq 'tags entry)))))) (link (nth 1 (assq 'link entry)))) (if tag-target - (setq link (idlwave-substitute-link-target link + (setq link (idlwave-substitute-link-target link tag-target))) (setq mod1 (list link)))) - + ;; An executive command -- only system help ((string-match "^\\.\\([A-Z_]+\\)" this-word) (let* ((word (match-string 1 this-word)) @@ -435,7 +463,7 @@ It collects and prints the diagnostics messages." word idlwave-executive-commands-alist t)))) (setq mod1 (list link)))) - + ;; A class -- system OR in-text help (via class__define). ((and (eq cw 'class) (or (idlwave-in-quote) ; e.g. obj_new @@ -449,28 +477,28 @@ It collects and prints the diagnostics messages." (name (concat (downcase this-word) "__define")) (link (nth 1 (assq 'link entry)))) (setq mod1 (list link name 'pro)))) - + ;; A class structure tag (self.BLAH) -- only in-text help available (classtag (let ((tag (substring this-word (match-end 0))) class-with found-in) - (when (setq class-with + (when (setq class-with (idlwave-class-or-superclass-with-tag (nth 2 (idlwave-current-routine)) tag)) (setq found-in (idlwave-class-found-in class-with)) - (if (assq (idlwave-sintern-class class-with) + (if (assq (idlwave-sintern-class class-with) idlwave-system-class-info) (error "No help available for system class tags")) (setq idlwave-help-do-class-struct-tag t) - (setq mod1 (list nil + (setq mod1 (list nil (if found-in (cons (concat found-in "__define") class-with) (concat class-with "__define")) 'pro nil ; no class.... it's a procedure! tag))))) - + ;; A regular structure tag -- only in text, and if ;; optional `complete-structtag' loaded. (structtag @@ -481,7 +509,7 @@ It collects and prints the diagnostics messages." (setq idlwave-help-do-struct-tag idlwave-structtag-struct-location mod1 (list nil nil nil nil tag)))) - + ;; A routine keyword -- in text or system help ((and (memq cw '(function-keyword procedure-keyword)) (stringp this-word) @@ -523,7 +551,7 @@ It collects and prints the diagnostics messages." (setq mod1 (append (list t) module (list keyword)) mod2 (list t this-word 'fun nil) mod3 (append (list t) module))))) - + ;; Everything else (t (setq mod1 (append (list t) module)))) @@ -556,14 +584,14 @@ Needs additional info stored in global `idlwave-completion-help-info'." word link) (mouse-set-point ev) - + ;; See if we can also find help somewhere, e.g. for multiple classes (setq word (idlwave-this-word)) (if (string= word "") (error "No help item selected")) (setq link (get-text-property 0 'link word)) (select-window cw) - (cond + (cond ;; Routine name ((memq what '(procedure function routine)) (setq name word) @@ -574,9 +602,9 @@ Needs additional info stored in global `idlwave-completion-help-info'." type))) (setq link t) ; No specific link valid yet (if sclasses - (setq classes (idlwave-members-only + (setq classes (idlwave-members-only classes (cons class sclasses)))) - (setq class (idlwave-popup-select ev classes + (setq class (idlwave-popup-select ev classes "Select Class" 'sort)))) ;; XXX is this necessary, given all-method-classes? @@ -596,7 +624,7 @@ Needs additional info stored in global `idlwave-completion-help-info'." type))) (setq link t) ; Link can't be correct yet (if sclasses - (setq classes (idlwave-members-only + (setq classes (idlwave-members-only classes (cons class sclasses)))) (setq class (idlwave-popup-select ev classes "Select Class" 'sort)) @@ -608,14 +636,14 @@ Needs additional info stored in global `idlwave-completion-help-info'." (if (string= (downcase name) "obj_new") (setq class idlwave-current-obj_new-class name "Init")))) - + ;; Class name ((eq what 'class) (setq class word word nil)) - + ;; A special named function to call which sets some of our variables - ((and (symbolp what) + ((and (symbolp what) (fboundp what)) (funcall what 'set word)) @@ -630,7 +658,7 @@ Needs additional info stored in global `idlwave-completion-help-info'." "Highlight all completions for which help is available and attach link. Those words in `idlwave-completion-help-links' have links. The `idlwave-help-link' face is used for this." - (if idlwave-highlight-help-links-in-completion + (if idlwave-highlight-help-links-in-completion (with-current-buffer (get-buffer "*Completions*") (save-excursion (let* ((case-fold-search t) @@ -646,7 +674,7 @@ Those words in `idlwave-completion-help-links' have links. The (setq beg (match-beginning 1) end (match-end 1) word (match-string 1) doit nil) ;; Call special completion function test - (if (and (symbolp what) + (if (and (symbolp what) (fboundp what)) (setq doit (funcall what 'test word)) ;; Look for special link property passed in help-links @@ -677,13 +705,13 @@ Those words in `idlwave-completion-help-links' have links. The ;; Try to select the return frame. ;; This can crash on slow network connections, obviously when ;; we kill the help frame before the return-frame is selected. - ;; To protect the workings, we wait for up to one second + ;; 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. (let ((maxtime 1.0) (time 0.) (step 0.1)) (select-frame idlwave-help-return-frame) (while (and (sit-for step) - (not (eq (selected-frame) + (not (eq (selected-frame) idlwave-help-return-frame)) (< (setq time (+ time step)) maxtime))))) (delete-frame idlwave-help-frame)) @@ -696,7 +724,7 @@ Those words in `idlwave-completion-help-links' have links. The (defvar default-toolbar-visible-p) (defun idlwave-help-display-help-window (&optional pos-or-func) - "Display the help window. + "Display the help window. Move window start to POS-OR-FUNC, if passed as a position, or call it if passed as a function. See `idlwave-help-use-dedicated-frame'." (let ((cw (selected-window)) @@ -707,13 +735,13 @@ if passed as a function. See `idlwave-help-use-dedicated-frame'." (switch-to-buffer buf)) ;; Do it in this frame and save the window configuration (if (not (get-buffer-window buf nil)) - (setq idlwave-help-window-configuration + (setq idlwave-help-window-configuration (current-window-configuration))) (display-buffer buf nil (selected-frame)) (select-window (get-buffer-window buf))) (raise-frame) - (if pos-or-func - (if (functionp pos-or-func) + (if pos-or-func + (if (functionp pos-or-func) (funcall pos-or-func) (goto-char pos-or-func) (recenter 0))) @@ -735,43 +763,43 @@ if passed as a function. See `idlwave-help-use-dedicated-frame'." (select-frame idlwave-help-return-frame))) (defun idlwave-online-help (link &optional name type class keyword) - "Display HTML or other special help on a certain topic. + "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) - (let ((entry (idlwave-best-rinfo-assoc name type class + (if (eq link t) + (let ((entry (idlwave-best-rinfo-assoc name type class (idlwave-routines) nil t))) (if entry (cond ;; Try keyword link - ((and keyword - (setq link (cdr + ((and keyword + (setq link (cdr (idlwave-entry-find-keyword entry keyword))))) ;; Default, regular entry link (t (setq link (idlwave-entry-has-help entry)))) - (if (and + (if (and class ;; Check for system class help (setq entry (assq (idlwave-sintern-class class) idlwave-system-class-info) link (nth 1 (assq 'link entry)))) - (message + (message (concat "No routine info for %s" ", falling back on class help.") (idlwave-make-full-name class name)))))) (cond ;; An explicit link - ((stringp link) + ((stringp link) (idlwave-help-html-link link)) - + ;; Any extra help (idlwave-extra-help-function (idlwave-help-get-special-help name type class keyword)) - + ;; Nothing worked (t (idlwave-help-error name type class keyword)))) @@ -779,10 +807,9 @@ see if a link is set for it. Try extra help functions if necessary." (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 + (funcall idlwave-extra-help-function name type class keyword))))) (if help-pos (idlwave-help-display-help-window help-pos) @@ -790,7 +817,7 @@ see if a link is set for it. Try extra help functions if necessary." (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) @@ -800,7 +827,7 @@ see if a link is set for it. Try extra help functions if necessary." ;; 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 @@ -820,14 +847,14 @@ see if a link is set for it. Try extra help functions if necessary." (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) @@ -840,7 +867,7 @@ This function can be used as `idlwave-extra-help-function'." (if class-only ;Help with class? Using "Init" as source. (setq name "Init" type 'fun)) - (if (not struct-tag) + (if (not struct-tag) (setq file (idlwave-routine-source-file (nth 3 (idlwave-best-rinfo-assoc @@ -853,14 +880,14 @@ This function can be used as `idlwave-extra-help-function'." (if (or struct-tag (stringp file)) (progn (setq in-buf ; structure-tag completion is always in current buffer - (if struct-tag + (if struct-tag idlwave-current-tags-buffer (idlwave-get-buffer-visiting file))) ;; see if file is in a visited buffer, insert those contents (if in-buf (progn (setq file (buffer-file-name in-buf)) - (erase-buffer) + (erase-buffer) (insert-buffer-substring in-buf)) (if (file-exists-p file) ;; otherwise just load the file (progn @@ -876,19 +903,19 @@ This function can be used as `idlwave-extra-help-function'." ;; Try to find a good place to display (setq def-pos ;; Find the class structure tag if that's what we're after - (cond + (cond ;; Class structure tags: find the class or named structure ;; definition (class-struct-tag - (save-excursion + (save-excursion (setq class - (if (string-match "[a-zA-Z0-9]\\(__\\)" name) + (if (string-match "[a-zA-Z0-9]\\(__\\)" name) (substring name 0 (match-beginning 1)) idlwave-current-tags-class)) (and (idlwave-find-class-definition class nil real-class) (idlwave-find-struct-tag keyword)))) - + ;; Generic structure tags: the structure definition ;; location within the file has been recorded in ;; `struct-tag' @@ -898,14 +925,14 @@ This function can be used as `idlwave-extra-help-function'." (integerp struct-tag) (goto-char struct-tag) (idlwave-find-struct-tag keyword)))) - + ;; Just find the routine definition (t (if class-only (point-min) (idlwave-help-find-routine-definition name type class keyword)))) idlwave-help-def-pos def-pos) - (if (and idlwave-help-source-try-header + (if (and idlwave-help-source-try-header (not (or struct-tag class-struct-tag))) ;; Check if we can find the header (save-excursion @@ -915,7 +942,7 @@ This function can be used as `idlwave-extra-help-function'." idlwave-help-in-header header-pos))) (if (or header-pos def-pos) - (progn + (progn (if (boundp 'idlwave-help-min-frame-width) (setq idlwave-help-min-frame-width 80)) (goto-char (or header-pos def-pos))) @@ -926,10 +953,11 @@ This function can be used as `idlwave-extra-help-function'." (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 + (if (re-search-backward (concat "^[ \t]*" (if (eq type 'pro) "pro" (if (eq type 'fun) "function" @@ -975,22 +1003,22 @@ with spaces allowed between the keyword and the following dash or equal sign. If there is a match, we assume it is the keyword description." (let* ((case-fold-search t) (rname (if (stringp class) - (concat + (concat "\\(" ;; Traditional name or class::name "\\(" "\\(" (regexp-quote (downcase class)) "::\\)?" (regexp-quote (downcase name)) "\\>\\)" - (concat + (concat "\\|" ;; class__define or just class (regexp-quote (downcase class)) "\\(__define\\)?") "\\)") (regexp-quote (downcase name)))) - + ;; NAME tag plus the routine name. The new version is from JD. - (name-re (concat + (name-re (concat "\\(^;+\\*?[ \t]*" idlwave-help-doclib-name "\\([ \t]*:\\|[ \t]*$\\)[ \t]*\\(\n;+[ \t]*\\)*" @@ -1025,7 +1053,7 @@ If there is a match, we assume it is the keyword description." (regexp-quote (upcase keyword)) "\\>"))) dstart dend name-pos kwds-pos kwd-pos) - (catch 'exit + (catch 'exit (save-excursion (goto-char (point-min)) (while (and (setq dstart (re-search-forward idlwave-doclib-start nil t)) @@ -1033,7 +1061,7 @@ If there is a match, we assume it is the keyword description." ;; found a routine header (goto-char dstart) (if (setq name-pos (re-search-forward name-re dend t)) - (progn + (progn (if keyword ;; We do need a keyword (progn @@ -1115,7 +1143,7 @@ When DING is non-nil, ring the bell as well." (idlwave-help-find-first-header nil) (setq idlwave-help-in-header nil) (idlwave-help-toggle-header-match-and-def arg 'top))) - + (defun idlwave-help-toggle-header-match-and-def (arg &optional top) (interactive "P") (let ((args idlwave-help-args) @@ -1127,7 +1155,7 @@ When DING is non-nil, ring the bell as well." (setq pos idlwave-help-def-pos)) ;; Try to display header (setq pos (apply 'idlwave-help-find-in-doc-header - (if top + (if top (list (car args) (nth 1 args) (nth 2 args) nil) args))) (if pos @@ -1161,7 +1189,7 @@ Useful when source code is displayed as help. See the option (font-lock-fontify-buffer)) (set-syntax-table syntax-table))))) - + (defun idlwave-help-error (name type class keyword) (error "Can't find help on %s%s %s" (or (and (or class name) (idlwave-make-full-name class name)) @@ -1172,7 +1200,7 @@ Useful when source code is displayed as help. See the option "(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 @@ -1196,8 +1224,7 @@ Useful when source code is displayed as help. See the option (if buf nil (setq buf (get-buffer-create "*IDLWAVE Help*")) - (save-excursion - (set-buffer buf) + (with-current-buffer buf (idlwave-help-mode))) buf)) @@ -1224,11 +1251,11 @@ Useful when source code is displayed as help. See the option ;; The Windows version does not have a !DIR/bin/* set of front-end ;; scripts, but instead only links directly to bin.x86. As a result, ;; we must pass the -profile argument as well. -(defvar idlwave-help-assistant-command +(defvar idlwave-help-assistant-command (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 () @@ -1248,29 +1275,29 @@ IDL assistant.") (not (eq (process-status idlwave-help-assistant-socket) 'open))) (let* ((help-loc (idlwave-html-help-location)) (command (idlwave-help-assistant-command)) - (extra-args + (extra-args (nconc (if (memq system-type '(ms-dos windows-nt)) `("-profile" ,(expand-file-name "idl.adp" help-loc))) (if full-link `("-file" ,full-link)))) port) - (if idlwave-help-assistant-socket + (if idlwave-help-assistant-socket (delete-process idlwave-help-assistant-socket)) - - (setq idlwave-help-assistant-process - (apply 'start-process + + (setq idlwave-help-assistant-process + (apply 'start-process "IDL_ASSISTANT_PROC" nil command "-server" extra-args)) - + (set-process-filter idlwave-help-assistant-process (lambda (proc string) (setq port (string-to-number string)))) (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" + (setq idlwave-help-assistant-socket + (open-network-stream "IDL_ASSISTANT_SOCK" nil "localhost" port)) (if (eq (process-status idlwave-help-assistant-socket) 'open) (progn @@ -1288,19 +1315,19 @@ IDL assistant.") ;; Open a link (file name with anchor, no leading path) in the assistant. (let ((help-loc (idlwave-html-help-location)) topic anchor file just-started exists full-link) - + (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) (setq exists t) - (setq file (expand-file-name + (setq file (expand-file-name (concat (upcase topic) ".html") help-loc)) (setq exists (file-exists-p file))) - + (setq full-link (concat file anchor) just-started (idlwave-help-assistant-start (if exists full-link))) (if exists @@ -1317,6 +1344,8 @@ IDL assistant.") (defvar idlwave-help-assistant-help-with-topic-history nil "The history of help topics selected with the minibuffer.") +(defvar idlwave-system-routines) + (defun idlwave-help-assistant-help-with-topic (&optional topic) "Prompt for and provide help with TOPIC." (interactive) @@ -1330,14 +1359,14 @@ IDL assistant.") (concat "." (car x))) idlwave-executive-commands-alist) idlwave-system-class-info)) - (setq topic - (idlwave-completing-read + (setq topic + (idlwave-completing-read "Help Topic: " list nil nil nil 'idlwave-help-assistant-help-with-topic-history))) (if (and topic (not (string= topic ""))) (idlwave-help-assistant-open-link (concat topic ".html"))))) - + (defun idlwave-help-assistant-close () (when (and idlwave-help-assistant-process (eq (process-status idlwave-help-assistant-process) 'run))