mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-27 10:54:40 +00:00
9a9691963d
* progmodes/antlr-mode.el (antlr-mode): * progmodes/autoconf.el (autoconf-mode): * progmodes/dcl-mode.el (dcl-mode): * progmodes/delphi.el (delphi-mode): * progmodes/ebrowse.el (ebrowse-tree-mode) (ebrowse-electric-list-mode, ebrowse-member-mode) (ebrowse-electric-position-mode): * progmodes/f90.el (f90-mode): * progmodes/fortran.el (fortran-mode): * progmodes/icon.el (icon-mode): * progmodes/idlw-help.el (idlwave-help-mode): * progmodes/idlw-shell.el (idlwave-shell-mode): * progmodes/idlwave.el (idlwave-mode): * progmodes/inf-lisp.el (inferior-lisp-mode): * progmodes/m4-mode.el (m4-mode): * progmodes/meta-mode.el (metafont-mode, metapost-mode): * progmodes/modula2.el (modula-2-mode): * progmodes/octave-inf.el (inferior-octave-mode): * progmodes/octave-mod.el (octave-mode): * progmodes/pascal.el (pascal-mode): * progmodes/sh-script.el (sh-mode): * progmodes/sql.el (sql-mode, sql-interactive-mode): * progmodes/vhdl-mode.el (vhdl-mode): * progmodes/xscheme.el (scheme-interaction-mode): Use run-mode-hooks.
1181 lines
42 KiB
EmacsLisp
1181 lines
42 KiB
EmacsLisp
;;; idlw-help.el --- HTML Help code for IDLWAVE
|
||
;; Copyright (c) 2000 Carsten Dominik
|
||
;; Copyright (c) 2001, 2002 J.D. Smith
|
||
;; Copyright (c) 2003,2004,2005 Free Software Foundation
|
||
;;
|
||
;; Authors: J.D. Smith <jdsmith@as.arizona.edu>
|
||
;; Carsten Dominik <dominik@astro.uva.nl>
|
||
;; Maintainer: J.D. Smith <jdsmith@as.arizona.edu>
|
||
;; Version: 5.5
|
||
|
||
;; This file is part of GNU Emacs.
|
||
|
||
;; This file 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.
|
||
|
||
;; This file 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:
|
||
|
||
;; The help link information for IDLWAVE's online help feature for
|
||
;; system routines is extracted automatically from the IDL
|
||
;; documentation, and is available, along with general routine
|
||
;; information, in the file idlw-rinfo.el. The HTML help file
|
||
;; themselves are not distributable with Emacs, but are available,
|
||
;; along with new versions of IDLWAVE, documentation, and more
|
||
;; information, at:
|
||
;;
|
||
;; http://idlwave.org
|
||
;;
|
||
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
||
|
||
|
||
;;; Code:
|
||
(require 'browse-url)
|
||
|
||
(defgroup idlwave-online-help nil
|
||
"Online Help options for IDLWAVE mode."
|
||
:group 'idlwave)
|
||
|
||
(defcustom idlwave-html-help-pre-v6 nil
|
||
"Whether pre or post-v6.0 IDL help documents are being used."
|
||
:group 'idlwave-online-help
|
||
:type 'boolean)
|
||
|
||
(defvar idlwave-html-link-sep
|
||
(if idlwave-html-help-pre-v6 "#" "#wp"))
|
||
|
||
(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 or idl.chm help file
|
||
(Windows only) lives."
|
||
:group 'idlwave-online-help
|
||
:type 'directory)
|
||
|
||
(defcustom idlwave-help-use-hh nil
|
||
"Whether to use the HTMLHelp viewer with idl.chm (Windows only)."
|
||
:group 'idlwave-online-help
|
||
:type '(choice :tag "use help viewer"
|
||
(const :tag "<none>" nil)
|
||
(const :tag "hh" 'hh)
|
||
(const :tag "keyhh" 'keyhh)))
|
||
|
||
(defcustom idlwave-help-browser-function browse-url-browser-function
|
||
"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."
|
||
: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."
|
||
:group 'idlwave-online-help
|
||
:type 'string)
|
||
|
||
(defcustom idlwave-help-browser-is-local nil
|
||
"Whether the browser will display locally in an Emacs window.
|
||
Several browsers run and/or display inside Emacs windows, but most are
|
||
external programs. If the browser name contains \"-w3\", it is
|
||
assumed to be local to Emacs. For other local browsers, this variable
|
||
must be explicitly set non-nil in order for the variable
|
||
`idlwave-help-use-dedicated-frame' to function."
|
||
:group 'idlwave-online-help
|
||
:type 'boolean)
|
||
|
||
(defvar idlwave-help-directory ""
|
||
"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."
|
||
:group 'idlwave-online-help
|
||
:type 'boolean)
|
||
|
||
(defcustom idlwave-help-frame-parameters
|
||
'((height . 32) (unsplittable . t))
|
||
"The frame parameters for the special Online Help frame.
|
||
See also `idlwave-help-use-dedicated-frame'.
|
||
If you do not set the frame width here, the value specified in
|
||
`idlw-help.el' will be used."
|
||
:group 'idlwave-online-help
|
||
:type '(repeat
|
||
(cons symbol sexp)))
|
||
|
||
(defcustom idlwave-max-popup-menu-items 20
|
||
"Maximum number of items per pane in popup menus.
|
||
Currently only used for class selection during completion help."
|
||
:group 'idlwave-online-help
|
||
:type 'integer)
|
||
|
||
(defcustom idlwave-extra-help-function 'idlwave-help-with-source
|
||
"The function to call for online help if the normal help fails.
|
||
Online help works only for system routines which are described in the
|
||
IDL manuals. A function may be specified to access help from other sources.
|
||
|
||
The function must accept four arguments: NAME, TYPE, CLASS, KEYWORD.
|
||
The Help buffer is current when this function is called, and the help
|
||
text should be loaded into this buffer. If help is found, the
|
||
function should return the buffer position which should be used as
|
||
`window-start' in the help window. Also, the variable
|
||
`idlwave-help-mode-line-indicator' should be set to a useful string,
|
||
which will be displayed in the mode line of the help window. If
|
||
should also set the variable `idlwave-help-min-frame-width' to a
|
||
positive integer. IDLWAVE will ensure that the help frame is at least
|
||
that many columns wide. Failure to find help should be indicated by
|
||
throwing an error.
|
||
|
||
When this variable is non-nil, IDLWAVE will allow the mouse-3 help click
|
||
for every routine and keyword, even though the item may not be highlighted
|
||
in blue (indicating the availability of system documentation).
|
||
|
||
The default value for this function is `idlwave-help-with-source' which
|
||
loads the routine source file into the help buffer. If you try to write
|
||
a different function which accesses a special help file or so, it is
|
||
probably a good idea to still call this function as a fallback."
|
||
:group 'idlwave-online-help
|
||
:type 'symbol)
|
||
|
||
(defcustom idlwave-help-fontify-source-code nil
|
||
"*Non-nil means, fontify source code displayed as help like normal code."
|
||
:group 'idlwave-online-help
|
||
:type 'boolean)
|
||
|
||
(defcustom idlwave-help-source-try-header t
|
||
"*Non-nil means, try to find help in routine header when displaying source.
|
||
Routines which are not documented in the system manual use their source as
|
||
help text. When this variable is non-nil, we try to find a description of
|
||
the help item in the first routine doclib header above the routine definition.
|
||
If the variable is nil, or if we cannot find/parse the header, the routine
|
||
definition is displayed instead."
|
||
:group 'idlwave-online-help
|
||
:type 'boolean)
|
||
|
||
|
||
(defcustom idlwave-help-doclib-name "name"
|
||
"*A regexp for the heading word to search for in doclib headers
|
||
which specifies the `name' section. Can be used for localization
|
||
support."
|
||
:group 'idlwave-online-help
|
||
:type 'string)
|
||
|
||
(defcustom idlwave-help-doclib-keyword "KEYWORD"
|
||
"*A regexp for the heading word to search for in doclib headers
|
||
which specifies the `keywords' section. Can be used for localization
|
||
support."
|
||
:group 'idlwave-online-help
|
||
:type 'string)
|
||
|
||
(defface idlwave-help-link-face
|
||
'((((min-colors 88) (class color)) (:foreground "Blue1"))
|
||
(((class color)) (:foreground "Blue"))
|
||
(t (:weight bold)))
|
||
"Face for highlighting links into IDLWAVE online help."
|
||
:group 'idlwave-online-help)
|
||
|
||
(defvar idlwave-help-activate-links-aggressively nil
|
||
"Obsolete variable.")
|
||
|
||
(defvar idlwave-completion-help-info)
|
||
|
||
(defvar idlwave-help-frame nil
|
||
"The frame for display of IDL online help.")
|
||
(defvar idlwave-help-frame-width 102
|
||
"The default width of the help frame.")
|
||
|
||
(defvar idlwave-html-help-is-available nil
|
||
"Is the system online help text avaiable?")
|
||
|
||
(defvar idlwave-help-mode-line-indicator ""
|
||
"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)
|
||
|
||
;; Define the menu for the Help application
|
||
|
||
(easy-menu-define
|
||
idlwave-help-menu idlwave-help-mode-map
|
||
"Menu for Help IDLWAVE system"
|
||
'("IDLHelp"
|
||
["Definition <-> Help Text" idlwave-help-toggle-header-match-and-def t]
|
||
["Find DocLib Header" idlwave-help-find-header t]
|
||
["Find First DocLib Header" idlwave-help-find-first-header t]
|
||
["Fontify help buffer" idlwave-help-fontify t]
|
||
"--"
|
||
["Quit" idlwave-help-quit t]))
|
||
|
||
(defun idlwave-help-mode ()
|
||
"Major mode for displaying IDL Help.
|
||
|
||
This is a VIEW mode for the ASCII version of IDL Help files,
|
||
with some extras. Its main purpose is speed - so don't
|
||
expect a fully hyper-linked help.
|
||
|
||
Scrolling: SPC DEL RET
|
||
Text Searches: Inside Topic: Use Emacs search functions
|
||
Exit: [q]uit or mouse button 3 will kill the frame
|
||
|
||
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
|
||
|
||
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 mode-line-format
|
||
(list ""
|
||
'mode-line-modified
|
||
'mode-line-buffer-identification
|
||
": " 'idlwave-help-mode-line-indicator
|
||
" -%-"))
|
||
(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-mode-hooks 'idlwave-help-mode-hook))
|
||
|
||
(defun idlwave-html-help-location ()
|
||
"Return the help directory where HTML files are, or nil if that is unknown."
|
||
(or (and (stringp idlwave-html-help-location)
|
||
(> (length idlwave-html-help-location) 0)
|
||
(file-directory-p idlwave-html-help-location)
|
||
idlwave-html-help-location)
|
||
(getenv "IDLWAVE_HELP_LOCATION")
|
||
(and (memq system-type '(ms-dos windows-nt)) ; Base it on sysdir
|
||
idlwave-help-use-hh
|
||
(stringp idlwave-system-directory)
|
||
(> (length idlwave-system-directory) 0)
|
||
(file-directory-p idlwave-system-directory)
|
||
(expand-file-name "HELP" idlwave-system-directory))))
|
||
|
||
(defvar idlwave-current-obj_new-class)
|
||
(defvar idlwave-help-diagnostics)
|
||
(defvar idlwave-experimental)
|
||
(defvar idlwave-last-context-help-pos)
|
||
(defun idlwave-do-context-help (&optional arg)
|
||
"Wrapper around the call to idlwave-context-help1.
|
||
It collects and prints the diagnostics messages."
|
||
(let ((marker (list (current-buffer) (point)))
|
||
(idlwave-help-diagnostics nil))
|
||
;; Check for frame switching. When the command is invoked twice
|
||
;; at the same position, we try to switch to the help frame
|
||
;; FIXME: Frame switching works only on XEmacs
|
||
(if (and idlwave-experimental
|
||
(equal last-command this-command)
|
||
(equal idlwave-last-context-help-pos marker))
|
||
(idlwave-help-select-help-frame)
|
||
;; Do the real thing.
|
||
(setq idlwave-last-context-help-pos marker)
|
||
(idlwave-do-context-help1 arg)
|
||
(if idlwave-help-diagnostics
|
||
(message "%s" (mapconcat 'identity
|
||
(nreverse idlwave-help-diagnostics)
|
||
"; "))))))
|
||
|
||
(defvar idlwave-help-do-class-struct-tag nil)
|
||
(defvar idlwave-help-do-struct-tag nil)
|
||
(defun idlwave-do-context-help1 (&optional arg)
|
||
"The work-horse version of `idlwave-context-help', which see."
|
||
(save-excursion
|
||
(if (equal (char-after) ?/)
|
||
(forward-char 1)
|
||
(if (equal (char-before) ?=)
|
||
(backward-char 1)))
|
||
(let* ((idlwave-query-class nil)
|
||
(idlwave-force-class-query (equal arg '(4)))
|
||
(chars "a-zA-Z0-9_$.!")
|
||
(beg (save-excursion (skip-chars-backward chars) (point)))
|
||
(end (save-excursion (skip-chars-forward chars) (point)))
|
||
(this-word (buffer-substring-no-properties beg end))
|
||
(st-ass (assoc (downcase this-word)
|
||
idlwave-help-special-topic-words))
|
||
(classtag (and (string-match "self\\." this-word)
|
||
(< beg (- end 4))))
|
||
(structtag (and (fboundp 'idlwave-complete-structure-tag)
|
||
(string-match "\\`\\([^.]+\\)\\." this-word)
|
||
(< beg (- end 4))))
|
||
module keyword cw mod1 mod2 mod3)
|
||
(if (or arg
|
||
(and (not st-ass)
|
||
(not classtag)
|
||
(not structtag)
|
||
(not (member (string-to-char this-word) '(?! ?.)))))
|
||
;; Need the module information
|
||
(progn
|
||
;; MODULE is (name type class), for this or any inheriting class
|
||
(setq module (idlwave-what-module-find-class)
|
||
cw (nth 2 (idlwave-where))) ;what would we complete here?
|
||
;; Correct for OBJ_NEW, we may need an INIT method instead.
|
||
(if (equal (idlwave-downcase-safe (car module)) "obj_new")
|
||
(let* ((bos (save-excursion (idlwave-beginning-of-statement)
|
||
(point)))
|
||
(str (buffer-substring bos (point))))
|
||
(if (string-match "OBJ_NEW([ \t]*['\"]\\([a-zA-Z][a-zA-Z0-9$_]+\\)['\"]" str)
|
||
(setq module (list "init" 'fun (match-string 1 str))
|
||
idlwave-current-obj_new-class (match-string 1 str))
|
||
)))))
|
||
(cond
|
||
(arg (setq mod1 module))
|
||
|
||
;; A special topic -- only system help
|
||
(st-ass (setq mod1 (list (cdr st-ass))))
|
||
|
||
;; A system variable -- only system help
|
||
((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)
|
||
idlwave-system-variables-alist))
|
||
(tag (match-string-no-properties 3 this-word))
|
||
(tag-target (if tag
|
||
(cdr
|
||
(assq (idlwave-sintern-sysvartag tag)
|
||
(cdr (assq 'tags entry))))))
|
||
(link (nth 1 (assq 'link entry))))
|
||
(if tag-target
|
||
(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))
|
||
(link (cdr (assoc-string
|
||
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
|
||
(re-search-backward "\\<inherits[ \t]+[A-Za-z0-9_]*\\="
|
||
(max (point-min) (- (point) 40)) t)))
|
||
;; Class completion inside string delimiters must be
|
||
;; the class inside OBJ_NEW.
|
||
(let* ((entry (assq
|
||
(idlwave-sintern-class this-word)
|
||
idlwave-system-class-info))
|
||
(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
|
||
(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)
|
||
idlwave-system-class-info)
|
||
(error "No help available for system class tags"))
|
||
(setq idlwave-help-do-class-struct-tag t)
|
||
(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
|
||
(let ((var (match-string 1 this-word))
|
||
(tag (substring this-word (match-end 0))))
|
||
;; Check if we need to update the "current" structure
|
||
(idlwave-prepare-structure-tag-completion var)
|
||
(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)
|
||
(string-match "\\S-" this-word)
|
||
(not (string-match "!" this-word)))
|
||
(cond ((or (= (char-before beg) ?/)
|
||
(save-excursion (goto-char end)
|
||
(looking-at "[ \t]*=")))
|
||
;; Certainly a keyword. Check for abbreviation etc.
|
||
(setq keyword (idlwave-expand-keyword this-word module))
|
||
(cond
|
||
((null keyword)
|
||
(idlwave-help-diagnostics
|
||
(format "%s does not accept `%s' kwd"
|
||
(idlwave-make-full-name (nth 2 module)
|
||
(car module))
|
||
(upcase this-word))
|
||
'ding))
|
||
((consp keyword)
|
||
(idlwave-help-diagnostics
|
||
(format "%d matches for kwd abbrev `%s'"
|
||
(length keyword) this-word)
|
||
'ding)
|
||
;; We continue anyway with the first match...
|
||
(setq keyword (car keyword))))
|
||
;; Keyword, or just module
|
||
(setq mod1 (append (list t) module (list keyword)))
|
||
(setq mod2 (append (list t) module)))
|
||
((equal (char-after end) ?\()
|
||
;; A function - what-module will have caught this
|
||
(setq mod1 (append (list t) module)))
|
||
(t
|
||
;; undecided - try function, keyword, then enclosing mod.
|
||
;; Check for keyword abbreviations, but do not report
|
||
;; errors, because it might be something else.
|
||
;; FIXME: is this a good way to handle this?
|
||
(setq keyword (idlwave-expand-keyword this-word module))
|
||
(if (consp keyword) (setq keyword (car keyword)))
|
||
(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))))
|
||
(if mod3
|
||
(condition-case nil
|
||
(apply 'idlwave-online-help mod1)
|
||
(error (condition-case nil
|
||
(apply 'idlwave-online-help mod2)
|
||
(error (apply 'idlwave-online-help mod3)))))
|
||
(if mod2
|
||
(condition-case nil
|
||
(apply 'idlwave-online-help mod1)
|
||
(error (apply 'idlwave-online-help mod2)))
|
||
(if mod1
|
||
(apply 'idlwave-online-help mod1)
|
||
(error "Don't know which item to show help for")))))))
|
||
|
||
(defun idlwave-do-mouse-completion-help (ev)
|
||
"Display online help on an item in the *Completions* buffer.
|
||
Needs additional info stored in global `idlwave-completion-help-info'."
|
||
(let* ((cw (selected-window))
|
||
(info idlwave-completion-help-info) ; global passed in
|
||
(what (nth 0 info))
|
||
(name (nth 1 info))
|
||
(type (nth 2 info))
|
||
(class (nth 3 info))
|
||
(need-class class)
|
||
(kwd (nth 4 info))
|
||
(sclasses (nth 5 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
|
||
;; Routine name
|
||
((memq what '(procedure function routine))
|
||
(setq name word)
|
||
(if (or (eq class t)
|
||
(and (stringp class) sclasses))
|
||
(let* ((classes (idlwave-all-method-classes
|
||
(idlwave-sintern-method name)
|
||
type)))
|
||
(setq link t) ; No specific link valid yet
|
||
(if sclasses
|
||
(setq classes (idlwave-members-only
|
||
classes (cons class sclasses))))
|
||
(setq class (idlwave-popup-select ev classes
|
||
"Select Class" 'sort))))
|
||
|
||
;; XXX is this necessary, given all-method-classes?
|
||
(if (stringp class)
|
||
(setq class (idlwave-find-inherited-class
|
||
(idlwave-sintern-routine-or-method name class)
|
||
type (idlwave-sintern-class class)))))
|
||
|
||
;; Keyword
|
||
((eq what 'keyword)
|
||
(setq 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)
|
||
type)))
|
||
(setq link t) ; Link can't be correct yet
|
||
(if sclasses
|
||
(setq classes (idlwave-members-only
|
||
classes (cons class sclasses))))
|
||
(setq class (idlwave-popup-select ev classes
|
||
"Select Class" 'sort))
|
||
;; 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)
|
||
type (idlwave-sintern-class class)))))
|
||
(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)
|
||
(fboundp what))
|
||
(funcall what 'set word))
|
||
|
||
(t (error "Cannot help with this item")))
|
||
(if (and need-class (not class) (not (and link (not (eq link t)))))
|
||
(error "Cannot help with this item"))
|
||
(idlwave-online-help link (or name word) type class kwd)))
|
||
|
||
(defvar idlwave-highlight-help-links-in-completion)
|
||
(defvar idlwave-completion-help-links)
|
||
(defun idlwave-highlight-linked-completions ()
|
||
"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' face is used for this."
|
||
(if idlwave-highlight-help-links-in-completion
|
||
(with-current-buffer (get-buffer "*Completions*")
|
||
(save-excursion
|
||
(let* ((case-fold-search t)
|
||
(props (list 'face 'idlwave-help-link-face))
|
||
(info idlwave-completion-help-info) ; global passed in
|
||
(what (nth 0 info)) ; what was completed, or a func
|
||
(class (nth 3 info)) ; any class
|
||
word beg end doit)
|
||
(goto-char (point-min))
|
||
(re-search-forward "possible completions are:" nil t)
|
||
(while (re-search-forward "\\s-\\([A-Za-z0-9_.]+\\)\\(\\s-\\|\\'\\)"
|
||
nil t)
|
||
(setq beg (match-beginning 1) end (match-end 1)
|
||
word (match-string 1) doit nil)
|
||
;; Call special completion function test
|
||
(if (and (symbolp what)
|
||
(fboundp what))
|
||
(setq doit (funcall what 'test word))
|
||
;; Look for special link property passed in help-links
|
||
(if idlwave-completion-help-links
|
||
(setq doit (assoc-string
|
||
word idlwave-completion-help-links t))))
|
||
(when doit
|
||
(if (consp doit)
|
||
(setq props (append props `(link ,(cdr doit)))))
|
||
(let ((buffer-read-only nil))
|
||
(add-text-properties beg end props)))
|
||
(goto-char end)))))))
|
||
|
||
;; Arrange for this function to be called after completion
|
||
(add-hook 'idlwave-completion-setup-hook
|
||
'idlwave-highlight-linked-completions)
|
||
|
||
(defvar idlwave-help-return-frame nil
|
||
"The frame to return to from the help frame.")
|
||
|
||
(defun idlwave-help-quit ()
|
||
"Exit IDLWAVE Help buffer. Kill the dedicated frame if any."
|
||
(interactive)
|
||
(cond ((and idlwave-help-use-dedicated-frame
|
||
(eq (selected-frame) idlwave-help-frame))
|
||
(if (and idlwave-experimental
|
||
(frame-live-p idlwave-help-return-frame))
|
||
;; 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
|
||
;; 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)
|
||
idlwave-help-return-frame))
|
||
(< (setq time (+ time step)) maxtime)))))
|
||
(delete-frame idlwave-help-frame))
|
||
((window-configuration-p idlwave-help-window-configuration)
|
||
(set-window-configuration idlwave-help-window-configuration)
|
||
(select-window (previous-window)))
|
||
(t (kill-buffer (idlwave-help-get-help-buffer)))))
|
||
|
||
|
||
(defvar default-toolbar-visible-p)
|
||
|
||
(defun idlwave-help-display-help-window (&optional pos-or-func)
|
||
"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))
|
||
(buf (idlwave-help-get-help-buffer)))
|
||
(if (and window-system idlwave-help-use-dedicated-frame)
|
||
(progn
|
||
(idlwave-help-show-help-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
|
||
(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)
|
||
(funcall pos-or-func)
|
||
(goto-char pos-or-func)
|
||
(recenter 0)))
|
||
(select-window cw)))
|
||
|
||
(defun idlwave-help-select-help-frame ()
|
||
"Select the help frame."
|
||
(if (and (frame-live-p idlwave-help-frame)
|
||
(not (eq (selected-frame) idlwave-help-frame)))
|
||
(progn
|
||
(setq idlwave-help-return-frame (selected-frame))
|
||
(select-frame idlwave-help-frame))))
|
||
|
||
(defun idlwave-help-return-to-calling-frame ()
|
||
"Select the frame from which the help frame was selected."
|
||
(interactive)
|
||
(if (and (frame-live-p idlwave-help-return-frame)
|
||
(not (eq (selected-frame) idlwave-help-return-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.
|
||
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
|
||
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
|
||
(idlwave-routines) nil t)))
|
||
(cond
|
||
;; Try keyword link
|
||
((and keyword
|
||
(setq link (cdr (idlwave-entry-find-keyword entry keyword)))))
|
||
;; Default, regular entry link
|
||
(t (setq link (idlwave-entry-has-help entry))))))
|
||
|
||
(cond
|
||
;; An explicit 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))))
|
||
|
||
|
||
(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))
|
||
(let ((buffer-read-only nil))
|
||
(funcall idlwave-extra-help-function
|
||
name type class keyword)))))
|
||
(if help-pos
|
||
(idlwave-help-display-help-window help-pos)
|
||
(idlwave-help-error name type class keyword))
|
||
(select-window cw)))
|
||
|
||
(defun idlwave-help-html-link (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)
|
||
;(browse-url-generic-args idlwave-help-browser-generic-args)
|
||
full-link)
|
||
|
||
(if (and (memq system-type '(ms-dos windows-nt))
|
||
idlwave-help-use-hh)
|
||
(progn
|
||
(setq browse-url-browser-function 'browse-url-generic
|
||
full-link (concat (expand-file-name "idl.chm" help-loc)
|
||
"::/"
|
||
link))
|
||
(if (memq 'keyhh idlwave-help-use-hh)
|
||
(setq browse-url-generic-program "KEYHH"
|
||
browse-url-generic-args '("-IDLWAVE"))
|
||
(setq browse-url-generic-program "HH")))
|
||
;; Just a regular file name (+ anchor name)
|
||
(unless (and (stringp help-loc)
|
||
(file-directory-p help-loc))
|
||
(error
|
||
"Invalid help location; customize `idlwave-html-help-location'."))
|
||
(setq full-link (concat
|
||
"file://"
|
||
(expand-file-name
|
||
link
|
||
(expand-file-name "idl_html_help" help-loc)))))
|
||
|
||
;; Check for a local browser
|
||
(if (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)))
|
||
(browse-url full-link))))
|
||
|
||
;; A special help routine for source-level syntax help in files.
|
||
(defvar idlwave-help-def-pos)
|
||
(defvar idlwave-help-args)
|
||
(defvar idlwave-help-in-header)
|
||
(defvar idlwave-help-fontify-source-code)
|
||
(defvar idlwave-help-source-try-header)
|
||
(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.
|
||
|
||
This function can be used as `idlwave-extra-help-function'."
|
||
(let* ((class-struct-tag idlwave-help-do-class-struct-tag)
|
||
(struct-tag idlwave-help-do-struct-tag)
|
||
(case-fold-search t)
|
||
(real-class (if (consp name) (cdr name)))
|
||
(name (if (consp name) (car name) name))
|
||
(class-only (and (stringp class) (not (stringp name))))
|
||
file header-pos def-pos in-buf)
|
||
(if class-only ;Help with class? Using "Init" as source.
|
||
(setq name "Init"
|
||
type 'fun))
|
||
(if (not struct-tag)
|
||
(setq file
|
||
(idlwave-routine-source-file
|
||
(nth 3 (idlwave-best-rinfo-assoc
|
||
name (or type t) class (idlwave-routines))))))
|
||
(setq idlwave-help-def-pos nil
|
||
idlwave-help-args (list name type class keyword)
|
||
idlwave-help-in-header nil
|
||
idlwave-help-do-struct-tag nil
|
||
idlwave-help-do-class-struct-tag nil)
|
||
(if (or struct-tag (stringp file))
|
||
(progn
|
||
(setq in-buf ; structure-tag completion is always in current buffer
|
||
(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)
|
||
(insert-buffer in-buf))
|
||
(if (file-exists-p file) ;; otherwise just load the file
|
||
(progn
|
||
(erase-buffer)
|
||
(insert-file-contents file nil nil nil 'replace))
|
||
(idlwave-help-error name type class keyword)))
|
||
(if (and idlwave-help-fontify-source-code (not in-buf))
|
||
(idlwave-help-fontify)))
|
||
(idlwave-help-error name type class keyword))
|
||
(setq idlwave-help-mode-line-indicator file)
|
||
|
||
;; Try to find a good place to display
|
||
(setq def-pos
|
||
;; Find the class structure tag if that's what we're after
|
||
(cond
|
||
;; Class structure tags: find the class or named structure
|
||
;; definition
|
||
(class-struct-tag
|
||
(save-excursion
|
||
(setq class
|
||
(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'
|
||
(struct-tag
|
||
(save-excursion
|
||
(and
|
||
(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
|
||
(not (or struct-tag class-struct-tag)))
|
||
;; Check if we can find the header
|
||
(save-excursion
|
||
(goto-char (or def-pos (point-max)))
|
||
(setq header-pos (idlwave-help-find-in-doc-header
|
||
name type class keyword 'exact)
|
||
idlwave-help-in-header header-pos)))
|
||
|
||
(if (or header-pos def-pos)
|
||
(progn
|
||
(if (boundp 'idlwave-help-min-frame-width)
|
||
(setq idlwave-help-min-frame-width 80))
|
||
(goto-char (or header-pos def-pos)))
|
||
(idlwave-help-error name type class keyword))
|
||
|
||
(point)))
|
||
|
||
|
||
(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."
|
||
(save-excursion
|
||
(goto-char (point-max))
|
||
(if (re-search-backward
|
||
(concat "^[ \t]*"
|
||
(if (eq type 'pro) "pro"
|
||
(if (eq type 'fun) "function"
|
||
"\\(pro\\|function\\)"))
|
||
"[ \t]+"
|
||
(regexp-quote (downcase (idlwave-make-full-name class name)))
|
||
"[, \t\r\n]")
|
||
nil t)
|
||
(match-beginning 0)
|
||
nil)))
|
||
|
||
(defvar idlwave-doclib-start)
|
||
(defvar idlwave-doclib-end)
|
||
(defun idlwave-help-find-in-doc-header (name type class keyword
|
||
&optional exact)
|
||
"Find the requested help in the doc-header above point.
|
||
|
||
First checks if there is a doc-lib header which describes the correct
|
||
routine. Then tries to find the KEYWORDS section and the KEYWORD, if
|
||
given. Returns the point which should be window start of the help
|
||
window. If EXACT is non-nil, the full help position must be found -
|
||
down to the keyword requested. This setting is for context help, if
|
||
the exact spot is needed.
|
||
|
||
If EXACT is nil, the position of the header is returned if it
|
||
describes the correct routine - even if the keyword description cannot
|
||
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
|
||
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
|
||
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
|
||
for the keyword anyway to increase the hit-rate
|
||
|
||
When one of these sections exists we check for a line starting with any of
|
||
|
||
/KEYWORD KEYWORD- KEYWORD= KEYWORD
|
||
|
||
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
|
||
"\\("
|
||
;; Traditional name or class::name
|
||
"\\("
|
||
"\\(" (regexp-quote (downcase class)) "::\\)?"
|
||
(regexp-quote (downcase name))
|
||
"\\>\\)"
|
||
(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
|
||
"\\(^;+\\*?[ \t]*"
|
||
idlwave-help-doclib-name
|
||
"\\([ \t]*:\\|[ \t]*$\\)[ \t]*\\(\n;+[ \t]*\\)*"
|
||
rname
|
||
"\\|"
|
||
"^;+[ \t]*"
|
||
rname
|
||
":[ \t]*$\\)"))
|
||
|
||
;; Header start plus name
|
||
(header-re (concat "\\(" idlwave-doclib-start "\\).*\n"
|
||
"\\(^;+.*\n\\)*"
|
||
"\\(" name-re "\\)"))
|
||
;; A keywords section
|
||
(kwds-re (concat ; forgiving
|
||
"^;+\\*?[ \t]*"
|
||
"\\([-A-Z_ ]*"
|
||
idlwave-help-doclib-keyword
|
||
"[-A-Z_ ]*\\)"
|
||
"\\(:\\|[ \t]*\n\\)"))
|
||
|
||
;; The individual keyword description line.
|
||
(kwd-re (if keyword ; hard (well...)
|
||
(concat
|
||
"^;+[ \t]+"
|
||
"\\(/" (regexp-quote (upcase keyword))
|
||
"\\|" (regexp-quote (upcase keyword)) "[ \t]*[-=:\n]"
|
||
"\\)")))
|
||
(kwd-re2 (if keyword ; forgiving
|
||
(concat
|
||
"^;+[ \t]+"
|
||
(regexp-quote (upcase keyword))
|
||
"\\>")))
|
||
dstart dend name-pos kwds-pos kwd-pos)
|
||
(catch 'exit
|
||
(save-excursion
|
||
(goto-char (point-min))
|
||
(while (and (setq dstart (re-search-forward idlwave-doclib-start nil t))
|
||
(setq dend (re-search-forward idlwave-doclib-end nil t)))
|
||
;; found a routine header
|
||
(goto-char dstart)
|
||
(if (setq name-pos (re-search-forward name-re dend t))
|
||
(progn
|
||
(if keyword
|
||
;; We do need a keyword
|
||
(progn
|
||
;; Try to find a keyword section, but don't force it.
|
||
(goto-char name-pos)
|
||
(if (let ((case-fold-search nil))
|
||
(re-search-forward kwds-re dend t))
|
||
(setq kwds-pos (match-beginning 0)))
|
||
;; Find the keyword description
|
||
(if (or (let ((case-fold-search nil))
|
||
(re-search-forward kwd-re dend t))
|
||
(re-search-forward kwd-re dend t)
|
||
(let ((case-fold-search nil))
|
||
(re-search-forward kwd-re2 dend t))
|
||
(re-search-forward kwd-re2 dend t))
|
||
(setq kwd-pos (match-beginning 0))
|
||
(if exact
|
||
(progn
|
||
(idlwave-help-diagnostics
|
||
(format "Could not find description of kwd %s"
|
||
(upcase keyword)))
|
||
(throw 'exit nil))))))
|
||
;; Return the best position we got
|
||
(throw 'exit (or kwd-pos kwds-pos name-pos dstart)))
|
||
(goto-char dend))))
|
||
(idlwave-help-diagnostics "Could not find doclib header")
|
||
(throw 'exit nil))))
|
||
|
||
(defun idlwave-help-diagnostics (string &optional ding)
|
||
"Add a diagnostics string to the list.
|
||
When DING is non-nil, ring the bell as well."
|
||
(if (boundp 'idlwave-help-diagnostics)
|
||
(progn
|
||
(setq idlwave-help-diagnostics
|
||
(cons string idlwave-help-diagnostics))
|
||
(if ding (ding)))))
|
||
|
||
(defun idlwave-help-toggle-header-top-and-def (arg)
|
||
(interactive "P")
|
||
(let (pos)
|
||
(if idlwave-help-in-header
|
||
;; Header was the last thing displayed
|
||
(progn
|
||
(setq idlwave-help-in-header nil)
|
||
(setq pos idlwave-help-def-pos))
|
||
;; Try to display header
|
||
(setq pos (idlwave-help-find-in-doc-header
|
||
(nth 0 idlwave-help-args)
|
||
(nth 1 idlwave-help-args)
|
||
(nth 2 idlwave-help-args)
|
||
nil))
|
||
(if pos
|
||
(setq idlwave-help-in-header t)
|
||
(error "Cannot find doclib header for routine %s"
|
||
(idlwave-make-full-name (nth 2 idlwave-help-args)
|
||
(nth 0 idlwave-help-args)))))
|
||
(if pos
|
||
(progn
|
||
(goto-char pos)
|
||
(recenter 0)))))
|
||
|
||
(defun idlwave-help-find-first-header (arg)
|
||
(interactive "P")
|
||
(let (pos)
|
||
(save-excursion
|
||
(goto-char (point-min))
|
||
(if (re-search-forward idlwave-doclib-start nil t)
|
||
(setq pos (match-beginning 0))))
|
||
(if pos
|
||
(progn
|
||
(goto-char pos)
|
||
(recenter 0))
|
||
(error "No DocLib Header in current file"))))
|
||
|
||
(defun idlwave-help-find-header (arg)
|
||
"Jump to the DocLib Header."
|
||
(interactive "P")
|
||
(if arg
|
||
(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)
|
||
pos)
|
||
(if idlwave-help-in-header
|
||
;; Header was the last thing displayed
|
||
(progn
|
||
(setq idlwave-help-in-header nil)
|
||
(setq pos idlwave-help-def-pos))
|
||
;; Try to display header
|
||
(setq pos (apply 'idlwave-help-find-in-doc-header
|
||
(if top
|
||
(list (car args) (nth 1 args) (nth 2 args) nil)
|
||
args)))
|
||
(if pos
|
||
(setq idlwave-help-in-header t)
|
||
(error "Cannot find doclib header for routine %s"
|
||
(idlwave-make-full-name (nth 2 idlwave-help-args)
|
||
(nth 0 idlwave-help-args)))))
|
||
(if pos
|
||
(progn
|
||
(goto-char pos)
|
||
(recenter 0)))))
|
||
|
||
(defvar font-lock-verbose)
|
||
(defvar idlwave-mode-syntax-table)
|
||
(defvar idlwave-font-lock-defaults)
|
||
(defun idlwave-help-fontify ()
|
||
"Fontify the Help buffer as source code.
|
||
Useful when source code is displayed as help. See the option
|
||
`idlwave-help-fontify-source-code'."
|
||
(interactive)
|
||
(if (featurep 'font-lock)
|
||
(let ((major-mode 'idlwave-mode)
|
||
(font-lock-verbose
|
||
(if (interactive-p) font-lock-verbose nil))
|
||
(syntax-table (syntax-table)))
|
||
(unwind-protect
|
||
(progn
|
||
(set-syntax-table idlwave-mode-syntax-table)
|
||
(set (make-local-variable 'font-lock-defaults)
|
||
idlwave-font-lock-defaults)
|
||
(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))
|
||
"<unknown>")
|
||
(if keyword (format ", keyword %s" (upcase keyword)) "")
|
||
(if idlwave-html-help-location
|
||
""
|
||
"(help location unknown)")))
|
||
|
||
(defun idlwave-help-show-help-frame ()
|
||
"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
|
||
(make-frame idlwave-help-frame-parameters))
|
||
;; Strip menubar (?) and toolbar from the Help frame.
|
||
(if (fboundp 'set-specifier)
|
||
(progn
|
||
;; XEmacs
|
||
(let ((sval (cons idlwave-help-frame nil)))
|
||
;; (set-specifier menubar-visible-p sval)
|
||
(set-specifier default-toolbar-visible-p sval)))
|
||
;; Emacs
|
||
(modify-frame-parameters idlwave-help-frame
|
||
'(;;(menu-bar-lines . 0)
|
||
(tool-bar-lines . 0)))))
|
||
(select-frame idlwave-help-frame))
|
||
|
||
(defun idlwave-help-get-help-buffer ()
|
||
"Return the IDLWAVE Help buffer. Make it first if necessary."
|
||
(let ((buf (get-buffer "*IDLWAVE Help*")))
|
||
(if buf
|
||
nil
|
||
(setq buf (get-buffer-create "*IDLWAVE Help*"))
|
||
(save-excursion
|
||
(set-buffer buf)
|
||
(idlwave-help-mode)))
|
||
buf))
|
||
|
||
(defun idlwave-grep (regexp list)
|
||
(let (rtn)
|
||
(while list
|
||
(if (string-match regexp (car list))
|
||
(setq rtn (cons (car list) rtn)))
|
||
(setq list (cdr list)))
|
||
(nreverse rtn)))
|
||
|
||
(defun idlwave-entry-has-help (entry)
|
||
(and entry (car (nth 5 entry))))
|
||
|
||
(defun idlwave-has-help (name type class)
|
||
"Does this have help associated with it?"
|
||
(let ((entry (idlwave-best-rinfo-assoc name type class (idlwave-routines))))
|
||
(idlwave-entry-has-help entry)))
|
||
|
||
(provide 'idlw-help)
|
||
(provide 'idlwave-help)
|
||
|
||
;; arch-tag: d27b5505-59de-497f-ba3f-f199fd4fb911
|
||
;;; idlw-help.el ends here
|