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290d5b5890
Affected functions are `window-minibuffer-p', `window-dedicated-p', `window-hscroll', `window-width', `window-height', `window-buffer', `window-frame', `window-start', `window-point', `next-window' and `window-display-table'. * abbrev.el (abbrev--default-expand): * bs.el (bs--show-with-configuration): * buff-menu.el (Buffer-menu-mouse-select): * calc/calc.el (calc): * calendar/calendar.el (calendar-generate-window): * calendar/diary-lib.el (diary-simple-display, diary-show-all-entries) (diary-make-entry): * comint.el (send-invisible, comint-dynamic-complete-filename) (comint-dynamic-simple-complete, comint-dynamic-list-completions): * completion.el (complete): * dabbrev.el (dabbrev-expand, dabbrev--make-friend-buffer-list): * disp-table.el (describe-current-display-table): * doc-view.el (doc-view-insert-image): * ebuff-menu.el (Electric-buffer-menu-mouse-select): * ehelp.el (with-electric-help): * emacs-lisp/easy-mmode.el (easy-mmode-define-navigation): * emacs-lisp/edebug.el (edebug-two-window-p, edebug-pop-to-buffer): * emacs-lisp/helper.el (Helper-help-scroller): * emulation/cua-base.el (cua--post-command-handler-1): * eshell/esh-mode.el (eshell-output-filter): * ffap.el (ffap-gnus-wrapper): * help-macro.el (make-help-screen): * hilit-chg.el (highlight-compare-buffers): * hippie-exp.el (hippie-expand, try-expand-dabbrev-visible): * hl-line.el (global-hl-line-highlight): * icomplete.el (icomplete-simple-completing-p): * isearch.el (isearch-done): * jit-lock.el (jit-lock-stealth-fontify): * mail/rmailsum.el (rmail-summary-scroll-msg-up): * lisp/mouse-drag.el (mouse-drag-should-do-col-scrolling): * mpc.el (mpc-tagbrowser, mpc): * net/rcirc.el (rcirc-any-buffer): * play/gomoku.el (gomoku-max-width, gomoku-max-height): * play/landmark.el (landmark-max-width, landmark-max-height): * play/zone.el (zone): * progmodes/compile.el (compilation-goto-locus): * progmodes/ebrowse.el (ebrowse-view/find-file-and-search-pattern): * progmodes/etags.el (find-tag-other-window): * progmodes/fortran.el (fortran-column-ruler): * progmodes/gdb-mi.el (gdb-mouse-toggle-breakpoint-fringe): * progmodes/verilog-mode.el (verilog-point-text): * reposition.el (reposition-window): * rot13.el (toggle-rot13-mode): * server.el (server-switch-buffer): * shell.el (shell-dynamic-complete-command) (shell-dynamic-complete-environment-variable): * simple.el (insert-buffer, set-selective-display) (delete-completion-window): * speedbar.el (speedbar-timer-fn, speedbar-center-buffer-smartly) (speedbar-recenter): * startup.el (fancy-splash-head): * textmodes/ispell.el (ispell-command-loop): * textmodes/makeinfo.el (makeinfo-compilation-sentinel-region): * tutorial.el (help-with-tutorial): * vc/add-log.el (add-change-log-entry): * vc/compare-w.el (compare-windows): * vc/ediff-help.el (ediff-indent-help-message): * vc/ediff-util.el (ediff-setup-control-buffer, ediff-position-region): * vc/ediff-wind.el (ediff-skip-unsuitable-frames) (ediff-setup-control-frame): * vc/emerge.el (emerge-position-region): * vc/pcvs-util.el (cvs-bury-buffer): * window.el (walk-windows, mouse-autoselect-window-select): * winner.el (winner-set-conf, winner-undo): Related users changed.
303 lines
10 KiB
EmacsLisp
303 lines
10 KiB
EmacsLisp
;;; disp-table.el --- functions for dealing with char tables
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;; Copyright (C) 1987, 1994-1995, 1999, 2001-2013 Free Software
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;; Foundation, Inc.
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;; Author: Erik Naggum <erik@naggum.no>
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;; Based on a previous version by Howard Gayle
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;; Maintainer: FSF
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;; Keywords: i18n
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;; Package: emacs
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;;; Code:
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(put 'display-table 'char-table-extra-slots 6)
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;;;###autoload
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(defun make-display-table ()
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"Return a new, empty display table."
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(make-char-table 'display-table nil))
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(or standard-display-table
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(setq standard-display-table (make-display-table)))
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;;; Display-table slot names. The property value says which slot.
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(put 'truncation 'display-table-slot 0)
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(put 'wrap 'display-table-slot 1)
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(put 'escape 'display-table-slot 2)
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(put 'control 'display-table-slot 3)
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(put 'selective-display 'display-table-slot 4)
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(put 'vertical-border 'display-table-slot 5)
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;;;###autoload
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(defun display-table-slot (display-table slot)
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"Return the value of the extra slot in DISPLAY-TABLE named SLOT.
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SLOT may be a number from 0 to 5 inclusive, or a slot name (symbol).
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Valid symbols are `truncation', `wrap', `escape', `control',
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`selective-display', and `vertical-border'."
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(let ((slot-number
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(if (numberp slot) slot
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(or (get slot 'display-table-slot)
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(error "Invalid display-table slot name: %s" slot)))))
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(char-table-extra-slot display-table slot-number)))
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;;;###autoload
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(defun set-display-table-slot (display-table slot value)
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"Set the value of the extra slot in DISPLAY-TABLE named SLOT to VALUE.
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SLOT may be a number from 0 to 5 inclusive, or a name (symbol).
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Valid symbols are `truncation', `wrap', `escape', `control',
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`selective-display', and `vertical-border'."
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(let ((slot-number
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(if (numberp slot) slot
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(or (get slot 'display-table-slot)
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(error "Invalid display-table slot name: %s" slot)))))
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(set-char-table-extra-slot display-table slot-number value)))
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;;;###autoload
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(defun describe-display-table (dt)
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"Describe the display table DT in a help buffer."
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(with-help-window "*Help*"
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(princ "\nTruncation glyph: ")
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(prin1 (display-table-slot dt 'truncation))
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(princ "\nWrap glyph: ")
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(prin1 (display-table-slot dt 'wrap))
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(princ "\nEscape glyph: ")
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(prin1 (display-table-slot dt 'escape))
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(princ "\nCtrl glyph: ")
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(prin1 (display-table-slot dt 'control))
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(princ "\nSelective display glyph sequence: ")
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(prin1 (display-table-slot dt 'selective-display))
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(princ "\nVertical window border glyph: ")
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(prin1 (display-table-slot dt 'vertical-border))
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(princ "\nCharacter display glyph sequences:\n")
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(with-current-buffer standard-output
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(let ((vector (make-vector 256 nil))
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(i 0))
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(while (< i 256)
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(aset vector i (aref dt i))
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(setq i (1+ i)))
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(describe-vector
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vector 'display-table-print-array))
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(help-mode))))
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(defun display-table-print-array (desc)
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(insert "[")
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(let ((column (current-column))
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(width (window-width))
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string)
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(dotimes (i (length desc))
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(setq string (format "%s" (aref desc i)))
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(cond
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((>= (+ (current-column) (length string) 1)
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width)
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(insert "\n")
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(insert (make-string column ? )))
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((> i 0)
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(insert " ")))
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(insert string)))
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(insert "]\n"))
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;;;###autoload
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(defun describe-current-display-table ()
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"Describe the display table in use in the selected window and buffer."
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(interactive)
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(let ((disptab (or (window-display-table)
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buffer-display-table
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standard-display-table)))
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(if disptab
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(describe-display-table disptab)
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(message "No display table"))))
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;;;###autoload
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(defun standard-display-8bit (l h)
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"Display characters representing raw bytes in the range L to H literally.
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On a terminal display, each character in the range is displayed
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by sending the corresponding byte directly to the terminal.
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On a graphic display, each character in the range is displayed
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using the default font by a glyph whose code is the corresponding
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byte.
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Note that ASCII printable characters (SPC to TILDA) are displayed
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in the default way after this call."
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(or standard-display-table
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(setq standard-display-table (make-display-table)))
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(if (> h 255)
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(setq h 255))
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(while (<= l h)
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(if (< l 128)
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(aset standard-display-table l
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(if (or (< l ?\s) (= l 127)) (vector l)))
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(let ((c (unibyte-char-to-multibyte l)))
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(aset standard-display-table c (vector c))))
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(setq l (1+ l))))
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;;;###autoload
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(defun standard-display-default (l h)
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"Display characters in the range L to H using the default notation."
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(or standard-display-table
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(setq standard-display-table (make-display-table)))
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(while (<= l h)
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(if (and (>= l ?\s) (characterp l))
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(aset standard-display-table l nil))
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(setq l (1+ l))))
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;; This function does NOT take terminal-dependent escape sequences.
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;; For that, you need to go through create-glyph. Use one of the
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;; other functions below, or roll your own.
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;;;###autoload
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(defun standard-display-ascii (c s)
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"Display character C using printable string S."
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(or standard-display-table
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(setq standard-display-table (make-display-table)))
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(aset standard-display-table c (vconcat s)))
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;;;###autoload
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(defun standard-display-g1 (c sc)
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"Display character C as character SC in the g1 character set.
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This function assumes that your terminal uses the SO/SI characters;
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it is meaningless for an X frame."
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(if (memq window-system '(x w32 ns))
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(error "Cannot use string glyphs in a windowing system"))
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(or standard-display-table
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(setq standard-display-table (make-display-table)))
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(aset standard-display-table c
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(vector (create-glyph (concat "\016" (char-to-string sc) "\017")))))
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;;;###autoload
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(defun standard-display-graphic (c gc)
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"Display character C as character GC in graphics character set.
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This function assumes VT100-compatible escapes; it is meaningless for an
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X frame."
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(if (memq window-system '(x w32 ns))
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(error "Cannot use string glyphs in a windowing system"))
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(or standard-display-table
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(setq standard-display-table (make-display-table)))
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(aset standard-display-table c
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(vector (create-glyph (concat "\e(0" (char-to-string gc) "\e(B")))))
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;;;###autoload
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(defun standard-display-underline (c uc)
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"Display character C as character UC plus underlining."
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(or standard-display-table
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(setq standard-display-table (make-display-table)))
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(aset standard-display-table c
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(vector
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(if window-system
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(make-glyph-code uc 'underline)
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(create-glyph (concat "\e[4m" (char-to-string uc) "\e[m"))))))
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;;;###autoload
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(defun create-glyph (string)
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"Allocate a glyph code to display by sending STRING to the terminal."
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(if (= (length glyph-table) 65536)
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(error "No free glyph codes remain"))
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;; Don't use slots that correspond to ASCII characters.
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(if (= (length glyph-table) 32)
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(setq glyph-table (vconcat glyph-table (make-vector 224 nil))))
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(setq glyph-table (vconcat glyph-table (list string)))
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(1- (length glyph-table)))
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;;;###autoload
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(defun make-glyph-code (char &optional face)
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"Return a glyph code representing char CHAR with face FACE."
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;; Due to limitations on Emacs integer values, faces with
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;; face id greater that 512 are silently ignored.
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(if (not face)
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char
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(let ((fid (face-id face)))
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(if (< fid 64) ; we have 32 - 3(LSB) - 1(SIGN) - 22(CHAR) = 6 bits for face id
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(logior char (lsh fid 22))
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(cons char fid)))))
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;;;###autoload
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(defun glyph-char (glyph)
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"Return the character of glyph code GLYPH."
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(if (consp glyph)
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(car glyph)
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(logand glyph #x3fffff)))
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;;;###autoload
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(defun glyph-face (glyph)
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"Return the face of glyph code GLYPH, or nil if glyph has default face."
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(let ((face-id (if (consp glyph) (cdr glyph) (lsh glyph -22))))
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(and (> face-id 0)
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(catch 'face
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(dolist (face (face-list))
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(when (eq (face-id face) face-id)
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(throw 'face face)))))))
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;;;###autoload
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(defun standard-display-european (arg)
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"Semi-obsolete way to toggle display of ISO 8859 European characters.
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This function is semi-obsolete; you probably don't need it, or else you
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probably should use `set-language-environment' or `set-locale-environment'.
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This function enables European character display if ARG is positive,
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disables it if negative. Otherwise, it toggles European character display.
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When this mode is enabled, characters in the range of 160 to 255
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display not as octal escapes, but as accented characters. Codes 146
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and 160 display as apostrophe and space, even though they are not the
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ASCII codes for apostrophe and space.
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Enabling European character display with this command noninteractively
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from Lisp code also selects Latin-1 as the language environment.
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This provides increased compatibility for users who call this function
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in `.emacs'."
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(if (or (<= (prefix-numeric-value arg) 0)
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(and (null arg)
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(char-table-p standard-display-table)
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;; Test 161, because 160 displays as a space.
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(equal (aref standard-display-table
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(unibyte-char-to-multibyte 161))
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(vector (unibyte-char-to-multibyte 161)))))
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(progn
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(standard-display-default
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(unibyte-char-to-multibyte 160) (unibyte-char-to-multibyte 255))
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(unless (or (memq window-system '(x w32 ns)))
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(and (terminal-coding-system)
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(set-terminal-coding-system nil))))
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(display-warning 'i18n
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"`standard-display-european' is semi-obsolete; see its doc string for details"
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:warning)
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;; Switch to Latin-1 language environment
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;; unless some other has been specified.
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(if (equal current-language-environment "English")
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(set-language-environment "latin-1"))
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(unless (or noninteractive (memq window-system '(x w32 ns)))
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;; Send those codes literally to a character-based terminal.
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;; If we are using single-byte characters,
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;; it doesn't matter which coding system we use.
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(set-terminal-coding-system
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(let ((c (intern (downcase current-language-environment))))
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(if (coding-system-p c) c 'latin-1))))
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(standard-display-european-internal)))
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(provide 'disp-table)
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;;; disp-table.el ends here
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