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7fdbcd8387
* window.el (split-window-vertically): * whitespace.el (whitespace-help-on): * vc-rcs.el (vc-rcs-consult-headers): * userlock.el (ask-user-about-lock-help) (ask-user-about-supersession-help): * type-break.el (type-break-force-mode-line-update): * time-stamp.el (time-stamp-conv-warn): * terminal.el (te-set-output-log, te-more-break, te-filter) (te-sentinel,terminal-emulator): * term.el (make-term, term-exec, term-sentinel, term-read-input-ring) (term-write-input-ring, term-check-source, term-start-output-log): (term-display-buffer-line, term-dynamic-list-completions): (term-ansi-make-term, serial-term): * subr.el (selective-display): * strokes.el (strokes-xpm-to-compressed-string, strokes-decode-buffer) (strokes-encode-buffer, strokes-xpm-for-compressed-string): * speedbar.el (speedbar-buffers-tail-notes, speedbar-buffers-item-info) (speedbar-reconfigure-keymaps, speedbar-add-localized-speedbar-support) (speedbar-remove-localized-speedbar-support) (speedbar-set-mode-line-format, speedbar-create-tag-hierarchy) (speedbar-update-special-contents, speedbar-buffer-buttons-engine) (speedbar-buffers-line-directory): * simple.el (shell-command-on-region, append-to-buffer) (prepend-to-buffer): * shadowfile.el (shadow-save-todo-file): * scroll-bar.el (scroll-bar-set-window-start, scroll-bar-drag-1) (scroll-bar-maybe-set-window-start): * sb-image.el (speedbar-image-dump): * saveplace.el (save-place-alist-to-file, save-places-to-alist) (load-save-place-alist-from-file): * ps-samp.el (ps-print-message-from-summary): * ps-print.el (ps-flush-output, ps-insert-file, ps-get-boundingbox) (ps-background-image, ps-begin-job, ps-do-despool): * ps-bdf.el (bdf-find-file, bdf-read-font-info): * printing.el (pr-interface, pr-ps-file-print, pr-find-buffer-visiting) (pr-ps-message-from-summary, pr-lpr-message-from-summary): (pr-call-process, pr-file-list, pr-interface-save): * novice.el (disabled-command-function) (enable-command, disable-command): * mouse.el (mouse-buffer-menu-alist): * mouse-copy.el (mouse-kill-preserving-secondary): * macros.el (kbd-macro-query): * ledit.el (ledit-go-to-lisp, ledit-go-to-liszt): * informat.el (batch-info-validate): * ido.el (ido-copy-current-word, ido-initiate-auto-merge): * hippie-exp.el (try-expand-dabbrev-visible): * help-mode.el (help-make-xrefs): * help-fns.el (describe-variable): * generic-x.el (bat-generic-mode-run-as-comint): * finder.el (finder-mouse-select): * find-dired.el (find-dired-sentinel): * filesets.el (filesets-file-close): * files.el (list-directory): * faces.el (list-faces-display, describe-face): * facemenu.el (list-colors-display): * ezimage.el (ezimage-image-association-dump, ezimage-image-dump): * epg.el (epg--process-filter, epg-cancel): * epa.el (epa--marked-keys, epa--select-keys, epa-display-info) (epa--read-signature-type): * emerge.el (emerge-copy-as-kill-A, emerge-copy-as-kill-B) (emerge-file-names): * ehelp.el (electric-helpify): * ediff.el (ediff-regions-wordwise, ediff-regions-linewise): * ediff-vers.el (rcs-ediff-view-revision): * ediff-util.el (ediff-setup): * ediff-mult.el (ediff-append-custom-diff): * ediff-diff.el (ediff-exec-process, ediff-process-sentinel) (ediff-wordify): * echistory.el (Electric-command-history-redo-expression): * dos-w32.el (find-file-not-found-set-buffer-file-coding-system): * disp-table.el (describe-display-table): * dired.el (dired-find-buffer-nocreate): * dired-aux.el (dired-rename-subdir, dired-dwim-target-directory): * dabbrev.el (dabbrev--same-major-mode-p): * chistory.el (list-command-history): * apropos.el (apropos-documentation): * allout.el (allout-obtain-passphrase): (allout-copy-exposed-to-buffer): (allout-verify-passphrase): Use with-current-buffer.
266 lines
9.6 KiB
EmacsLisp
266 lines
9.6 KiB
EmacsLisp
;;; disp-table.el --- functions for dealing with char tables
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;; Copyright (C) 1987, 1994, 1995, 1999, 2001, 2002, 2003, 2004,
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;; 2005, 2006, 2007, 2008, 2009 Free Software 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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;; 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 vector))
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(help-mode))))
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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 (selected-window))
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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 in the range L to H literally."
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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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(aset standard-display-table l (if (or (< l ?\s) (>= l 127)) (vector l)))
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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 161) [161])))
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(progn
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(standard-display-default 160 255)
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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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;; arch-tag: ffe4c28c-960c-47aa-b8a8-ae89d371ffc7
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;;; disp-table.el ends here
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