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(idlwave)Configuration Examples

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Configuration Examples
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Question: So now you have all these complicated configuration options
in your package, but which ones do _you_ as the maintainer actually set
in your own configuration?

Answer: Hardly any.  As the maintainer, I set the default of most
options to what I think is best.  However, the default settings do not
turn on features which

   - are not self-evident (i.e. too magic) when used by an unsuspecting
     user

   - are too intrusive

   - will not work properly on all Emacs installations out there

   - break with widely used standards.

To see what I mean, here is the _entire_ configuration I have in my
`.emacs':

     (setq idlwave-shell-debug-modifiers '(control shift)
           idlwave-store-inquired-class t
           idlwave-shell-automatic-start t
           idlwave-main-block-indent 2
           idlwave-help-dir "~/lib/emacs/idlwave"
           idlwave-special-lib-alist '(("/idl-astro/" . "AstroLib")
                                       ("/jhuapl/" . "JHUAPL-Lib")
                                       ("/dominik/lib/idl/" . "MyLib")))

   However, if you are an Emacs power-user and want IDLWAVE to work
completely differently, the options allow you to change almost every
aspect of it.  Here is an example of a much more extensive configuration
of IDLWAVE.  To say it again - this is not what I recommend, but the
user is King!

     ;;; Settings for IDLWAVE mode
     
     (setq idlwave-block-indent 3)           ; Indentation settings
     (setq idlwave-main-block-indent 3)
     (setq idlwave-end-offset -3)
     (setq idlwave-continuation-indent 1)
     (setq idlwave-begin-line-comment "^;[^;]")  ; Leave ";" but not ";;"
                                                 ; anchored at start of line.
     (setq idlwave-surround-by-blank t)      ; Turn on padding ops =,<,>
     (setq idlwave-pad-keyword nil)          ; Remove spaces for keyword '='
     (setq idlwave-expand-generic-end t)     ; convert END to ENDIF etc...
     (setq idlwave-reserved-word-upcase t)   ; Make reserved words upper case
                                             ; (with abbrevs only)
     (setq idlwave-abbrev-change-case nil)   ; Don't force case of expansions
     (setq idlwave-hang-indent-regexp ": ")  ; Change from "- " for auto-fill
     (setq idlwave-show-block nil)           ; Turn off blinking to begin
     (setq idlwave-abbrev-move t)            ; Allow abbrevs to move point
     
     ;; Some setting can only be done from a mode hook.  Here is an example:
     
     (add-hook 'idlwave-mode-hook
       (lambda ()
         (setq abbrev-mode 1)                 ; Turn on abbrevs (-1 for off)
         (setq case-fold-search nil)          ; Make searches case sensitive
         ;; Run other functions here
         (font-lock-mode 1)                   ; Turn on font-lock mode
         (idlwave-auto-fill-mode 0)           ; Turn off auto filling
         ;;
         ;; Pad with 1 space (if -n is used then make the
         ;; padding a minimum of n spaces.)  The defaults use -1
         ;; instead of 1.
         (idlwave-action-and-binding "=" '(idlwave-expand-equal 1 1))
         (idlwave-action-and-binding "<" '(idlwave-surround 1 1))
         (idlwave-action-and-binding ">" '(idlwave-surround 1 1 '(?-)))
         (idlwave-action-and-binding "&" '(idlwave-surround 1 1))
         ;;
         ;; Only pad after comma and with exactly 1 space
         (idlwave-action-and-binding "," '(idlwave-surround nil 1))
         (idlwave-action-and-binding "&" '(idlwave-surround 1 1))
         ;;
         ;; Pad only after `->', remove any space before the arrow
         (idlwave-action-and-binding "->"  '(idlwave-surround 0 -1 nil 2))
         ;;;
         ;; Set some personal bindings
         ;; (In this case, makes `,' have the normal self-insert behavior.)
         (local-set-key "," 'self-insert-command)
         ;; Create a newline, indenting the original and new line.
         ;; A similar function that does _not_ reindent the original
         ;; line is on "\C-j" (The default for emacs programming modes).
         (local-set-key "\n" 'idlwave-newline)
         ;; (local-set-key "\C-j" 'idlwave-newline) ; My preference.
         ))
     
     ;;; Settings for IDLWAVE SHELL mode
     
     (setq idlwave-shell-overlay-arrow "=>")        ; default is ">"
     (setq idlwave-shell-use-dedicated-frame t)     ; Make a dedicated frame
     (setq idlwave-shell-prompt-pattern "^WAVE> ")  ; default is "^IDL> "
     (setq idlwave-shell-explicit-file-name "wave")
     (setq idlwave-shell-process-name "wave")
     (setq idlwave-shell-use-toolbar nil)           ; No toolbar