mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-12-01 08:17:38 +00:00
3132f345bc
before their first use. Use `when', `unless'. Remove trailing periods from error forms. Add description and headers suggested by Emacs Lisp coding conventions.
180 lines
4.8 KiB
EmacsLisp
180 lines
4.8 KiB
EmacsLisp
;;; calc-trail.el --- functions for manipulating the Calc "trail"
|
|
|
|
;; Copyright (C) 1990, 1991, 1992, 1993, 2001 Free Software Foundation, Inc.
|
|
|
|
;; Author: David Gillespie <daveg@synaptics.com>
|
|
;; Maintainer: Colin Walters <walters@debian.org>
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY. No author or distributor
|
|
;; accepts responsibility to anyone for the consequences of using it
|
|
;; or for whether it serves any particular purpose or works at all,
|
|
;; unless he says so in writing. Refer to the GNU Emacs General Public
|
|
;; License for full details.
|
|
|
|
;; Everyone is granted permission to copy, modify and redistribute
|
|
;; GNU Emacs, but only under the conditions described in the
|
|
;; GNU Emacs General Public License. A copy of this license is
|
|
;; supposed to have been given to you along with GNU Emacs so you
|
|
;; can know your rights and responsibilities. It should be in a
|
|
;; file named COPYING. Among other things, the copyright notice
|
|
;; and this notice must be preserved on all copies.
|
|
|
|
;;; Commentary:
|
|
|
|
;;; Code:
|
|
|
|
;; This file is autoloaded from calc-ext.el.
|
|
(require 'calc-ext)
|
|
|
|
(require 'calc-macs)
|
|
|
|
(defun calc-Need-calc-trail () nil)
|
|
|
|
|
|
;;; Trail commands.
|
|
|
|
(defun calc-trail-in ()
|
|
(interactive)
|
|
(let ((win (get-buffer-window (calc-trail-display t))))
|
|
(and win (select-window win))))
|
|
|
|
(defun calc-trail-out ()
|
|
(interactive)
|
|
(calc-select-buffer)
|
|
(let ((win (get-buffer-window (current-buffer))))
|
|
(if win
|
|
(progn
|
|
(select-window win)
|
|
(calc-align-stack-window))
|
|
(calc))))
|
|
|
|
(defun calc-trail-next (n)
|
|
(interactive "p")
|
|
(calc-with-trail-buffer
|
|
(forward-line n)
|
|
(calc-trail-here)))
|
|
|
|
(defun calc-trail-previous (n)
|
|
(interactive "p")
|
|
(calc-with-trail-buffer
|
|
(forward-line (- n))
|
|
(calc-trail-here)))
|
|
|
|
(defun calc-trail-first (n)
|
|
(interactive "p")
|
|
(calc-with-trail-buffer
|
|
(goto-char (point-min))
|
|
(forward-line n)
|
|
(calc-trail-here)))
|
|
|
|
(defun calc-trail-last (n)
|
|
(interactive "p")
|
|
(calc-with-trail-buffer
|
|
(goto-char (point-max))
|
|
(forward-line (- n))
|
|
(calc-trail-here)))
|
|
|
|
(defun calc-trail-scroll-left (n)
|
|
(interactive "P")
|
|
(let ((curwin (selected-window)))
|
|
(calc-with-trail-buffer
|
|
(unwind-protect
|
|
(progn
|
|
(select-window (get-buffer-window (current-buffer)))
|
|
(calc-scroll-left n))
|
|
(select-window curwin)))))
|
|
|
|
(defun calc-trail-scroll-right (n)
|
|
(interactive "P")
|
|
(let ((curwin (selected-window)))
|
|
(calc-with-trail-buffer
|
|
(unwind-protect
|
|
(progn
|
|
(select-window (get-buffer-window (current-buffer)))
|
|
(calc-scroll-right n))
|
|
(select-window curwin)))))
|
|
|
|
(defun calc-trail-forward (n)
|
|
(interactive "p")
|
|
(calc-with-trail-buffer
|
|
(forward-line (* n (1- (window-height))))
|
|
(calc-trail-here)))
|
|
|
|
(defun calc-trail-backward (n)
|
|
(interactive "p")
|
|
(calc-with-trail-buffer
|
|
(forward-line (- (* n (1- (window-height)))))
|
|
(calc-trail-here)))
|
|
|
|
(defun calc-trail-isearch-forward ()
|
|
(interactive)
|
|
(calc-with-trail-buffer
|
|
(save-window-excursion
|
|
(select-window (get-buffer-window (current-buffer)))
|
|
(let ((search-exit-char ?\r))
|
|
(isearch-forward)))
|
|
(calc-trail-here)))
|
|
|
|
(defun calc-trail-isearch-backward ()
|
|
(interactive)
|
|
(calc-with-trail-buffer
|
|
(save-window-excursion
|
|
(select-window (get-buffer-window (current-buffer)))
|
|
(let ((search-exit-char ?\r))
|
|
(isearch-backward)))
|
|
(calc-trail-here)))
|
|
|
|
(defun calc-trail-yank (arg)
|
|
(interactive "P")
|
|
(calc-wrapper
|
|
(or arg (calc-set-command-flag 'hold-trail))
|
|
(calc-enter-result 0 "yank"
|
|
(calc-with-trail-buffer
|
|
(if arg
|
|
(forward-line (- (prefix-numeric-value arg))))
|
|
(if (or (looking-at "Emacs Calc")
|
|
(looking-at "----")
|
|
(looking-at " ? ? ?[^ \n]* *$")
|
|
(looking-at "..?.?$"))
|
|
(error "Can't yank that line"))
|
|
(if (looking-at ".*, \\.\\.\\., ")
|
|
(error "Can't yank (vector was abbreviated)"))
|
|
(forward-char 4)
|
|
(search-forward " ")
|
|
(let* ((next (save-excursion (forward-line 1) (point)))
|
|
(str (buffer-substring (point) (1- next)))
|
|
(val (save-excursion
|
|
(set-buffer save-buf)
|
|
(math-read-plain-expr str))))
|
|
(if (eq (car-safe val) 'error)
|
|
(error "Can't yank that line: %s" (nth 2 val))
|
|
val))))))
|
|
|
|
(defun calc-trail-marker (str)
|
|
(interactive "sText to insert in trail: ")
|
|
(calc-with-trail-buffer
|
|
(forward-line 1)
|
|
(let ((buffer-read-only nil))
|
|
(insert "---- " str "\n"))
|
|
(forward-line -1)
|
|
(calc-trail-here)))
|
|
|
|
(defun calc-trail-kill (n)
|
|
(interactive "p")
|
|
(calc-with-trail-buffer
|
|
(let ((buffer-read-only nil))
|
|
(save-restriction
|
|
(narrow-to-region ; don't delete "Emacs Trail" header
|
|
(save-excursion
|
|
(goto-char (point-min))
|
|
(forward-line 1)
|
|
(point))
|
|
(point-max))
|
|
(kill-line n)))
|
|
(calc-trail-here)))
|
|
|
|
;;; calc-trail.el ends here
|