1;;; case-table.el --- code to extend the character set and support case tables. 2 3;; Copyright (C) 1988, 1994 Free Software Foundation, Inc. 4 5;; Author: Howard Gayle 6;; Maintainer: FSF 7;; Keywords: i18n 8 9;; This file is part of GNU Emacs. 10 11;; GNU Emacs is free software; you can redistribute it and/or modify 12;; it under the terms of the GNU General Public License as published by 13;; the Free Software Foundation; either version 2, or (at your option) 14;; any later version. 15 16;; GNU Emacs is distributed in the hope that it will be useful, 17;; but WITHOUT ANY WARRANTY; without even the implied warranty of 18;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 19;; GNU General Public License for more details. 20 21;; You should have received a copy of the GNU General Public License 22;; along with GNU Emacs; see the file COPYING. If not, write to 23;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 24 25;;; Commentary: 26 27;; Written by: 28;; TN/ETX/TX/UMG Howard Gayle UUCP : seismo!enea!erix!howard 29;; Telefonaktiebolaget L M Ericsson Phone: +46 8 719 55 65 30;; Ericsson Telecom Telex: 14910 ERIC S 31;; S-126 25 Stockholm FAX : +46 8 719 64 82 32;; Sweden 33 34;;; Code: 35 36;;;###autoload 37(defun describe-buffer-case-table () 38 "Describe the case table of the current buffer." 39 (interactive) 40 (let ((vector (make-vector 256 nil)) 41 (ch 0)) 42 (while (< ch 256) 43 (aset vector ch 44 (cond ((/= ch (downcase ch)) 45 (concat "uppercase, matches " 46 (char-to-string (downcase ch)))) 47 ((/= ch (upcase ch)) 48 (concat "lowercase, matches " 49 (char-to-string (upcase ch)))) 50 (t "case-invariant"))) 51 (setq ch (1+ ch))) 52 (save-excursion 53 (with-output-to-temp-buffer "*Help*" 54 (set-buffer standard-output) 55 (describe-vector vector))))) 56 57;;;###autoload 58(defun set-case-syntax-delims (l r table) 59 "Make characters L and R a matching pair of non-case-converting delimiters. 60This sets the entries for L and R in TABLE, which is a string 61that will be used as the downcase part of a case table. 62It also modifies `standard-syntax-table' to 63indicate left and right delimiters." 64 (aset table l l) 65 (aset table r r) 66 (modify-syntax-entry l (concat "(" (char-to-string r) " ") 67 (standard-syntax-table)) 68 (modify-syntax-entry r (concat ")" (char-to-string l) " ") 69 (standard-syntax-table))) 70 71;;;###autoload 72(defun set-case-syntax-pair (uc lc table) 73 "Make characters UC and LC a pair of inter-case-converting letters. 74This sets the entries for characters UC and LC in TABLE, which is a string 75that will be used as the downcase part of a case table. 76It also modifies `standard-syntax-table' to give them the syntax of 77word constituents." 78 (aset table uc lc) 79 (aset table lc lc) 80 (modify-syntax-entry lc "w " (standard-syntax-table)) 81 (modify-syntax-entry uc "w " (standard-syntax-table))) 82 83;;;###autoload 84(defun set-case-syntax (c syntax table) 85 "Make characters C case-invariant with syntax SYNTAX. 86This sets the entries for character C in TABLE, which is a string 87that will be used as the downcase part of a case table. 88It also modifies `standard-syntax-table'. 89SYNTAX should be \" \", \"w\", \".\" or \"_\"." 90 (aset table c c) 91 (modify-syntax-entry c syntax (standard-syntax-table))) 92 93(provide 'case-table) 94 95;;; case-table.el ends here 96