+2014-04-24 Leo Liu <sdl.web@gmail.com>
+
+ * progmodes/xscheme.el (xscheme-expressions-ring)
+ (xscheme-expressions-ring-yank-pointer, xscheme-running-p)
+ (xscheme-control-g-disabled-p, xscheme-process-filter-state)
+ (xscheme-allow-output-p, xscheme-prompt)
+ (xscheme-string-accumulator, xscheme-mode-string): Use defvar-local.
+
+ * progmodes/scheme.el (would-be-symbol, next-sexp-as-string):
+ Comment out unused functions.
+
2014-04-24 Stefan Monnier <monnier@iro.umontreal.ca>
* info.el: Use lexical-binding and cl-lib.
-;;; scheme.el --- Scheme (and DSSSL) editing mode
+;;; scheme.el --- Scheme (and DSSSL) editing mode -*- lexical-binding: t; -*-
;; Copyright (C) 1986-1988, 1997-1998, 2001-2014 Free Software
;; Foundation, Inc.
\f
;;; Let is different in Scheme
-(defun would-be-symbol (string)
- (not (string-equal (substring string 0 1) "(")))
+;; (defun scheme-would-be-symbol (string)
+;; (not (string-equal (substring string 0 1) "(")))
-(defun next-sexp-as-string ()
- ;; Assumes that it is protected by a save-excursion
- (forward-sexp 1)
- (let ((the-end (point)))
- (backward-sexp 1)
- (buffer-substring (point) the-end)))
+;; (defun scheme-next-sexp-as-string ()
+;; ;; Assumes that it is protected by a save-excursion
+;; (forward-sexp 1)
+;; (let ((the-end (point)))
+;; (backward-sexp 1)
+;; (buffer-substring (point) the-end)))
;; This is correct but too slow.
;; The one below works almost always.
;;(defun scheme-let-indent (state indent-point)
-;; (if (would-be-symbol (next-sexp-as-string))
+;; (if (scheme-would-be-symbol (scheme-next-sexp-as-string))
;; (scheme-indent-specform 2 state indent-point)
;; (scheme-indent-specform 1 state indent-point)))
-;;; xscheme.el --- run MIT Scheme under Emacs
+;;; xscheme.el --- run MIT Scheme under Emacs -*- lexical-binding: t; -*-
;; Copyright (C) 1986-1987, 1989-1990, 2001-2014 Free Software
;; Foundation, Inc.
(defvar xscheme-expressions-ring-max 30
"Maximum length of Scheme expressions ring.")
-(defvar xscheme-expressions-ring nil
+(defvar-local xscheme-expressions-ring nil
"List of expressions recently transmitted to the Scheme process.")
-(defvar xscheme-expressions-ring-yank-pointer nil
+(defvar-local xscheme-expressions-ring-yank-pointer nil
"The tail of the Scheme expressions ring whose car is the last thing yanked.")
-(defvar xscheme-running-p nil
+(defvar-local xscheme-running-p nil
"This variable, if nil, indicates that the scheme process is
waiting for input. Otherwise, it is busy evaluating something.")
control-g interrupts were signaled. Do not allow more control-g's to be
signaled until the scheme process acknowledges receipt.")
-(defvar xscheme-control-g-disabled-p nil
+(defvar-local xscheme-control-g-disabled-p nil
"This variable, if non-nil, indicates that a control-g is being processed
by the scheme process, so additional control-g's are to be ignored.")
(defvar xscheme-runlight "")
(defvar xscheme-runlight-string nil)
-(defvar xscheme-process-filter-state 'idle
+(defvar-local xscheme-process-filter-state 'idle
"State of scheme process escape reader state machine:
idle waiting for an escape sequence
reading-type received an altmode but nothing else
reading-string reading prompt string")
-(defvar xscheme-allow-output-p t
+(defvar-local xscheme-allow-output-p t
"This variable, if nil, prevents output from the scheme process
from being inserted into the process-buffer.")
-(defvar xscheme-prompt ""
+(defvar-local xscheme-prompt ""
"The current scheme prompt string.")
-(defvar xscheme-string-accumulator ""
+(defvar-local xscheme-string-accumulator ""
"Accumulator for the string being received from the scheme process.")
-(defvar xscheme-mode-string nil)
-(setq-default scheme-mode-line-process
- '("" xscheme-runlight))
-
-(mapc 'make-variable-buffer-local
- '(xscheme-expressions-ring
- xscheme-expressions-ring-yank-pointer
- xscheme-process-filter-state
- xscheme-running-p
- xscheme-control-g-disabled-p
- xscheme-allow-output-p
- xscheme-prompt
- xscheme-string-accumulator
- xscheme-mode-string
- scheme-mode-line-process))
+(defvar-local xscheme-mode-string nil)
+(setq-default scheme-mode-line-process '("" xscheme-runlight))
+(make-variable-buffer-local 'scheme-mode-line-process)
+
\f
(defgroup xscheme nil
"Major mode for editing Scheme and interacting with MIT's C-Scheme."