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1 | ;;; case-table.el ---code to extend the character set and support case tables. |
2 | ||
3 | ;; Author: Howard Gayle | |
4 | ;; Maintainer: FSF | |
5 | ;; Last-Modified: 16 Mar 1992 | |
c0274f38 | 6 | |
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7 | ;; Copyright (C) 1988 Free Software Foundation, Inc. |
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 | |
e5167999 | 13 | ;; the Free Software Foundation; either version 2, or (at your option) |
a2535589 JA |
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 | ||
e5167999 | 25 | ;;; Commentary: |
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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 | ||
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34 | ;;; Code: |
35 | ||
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36 | (defun describe-buffer-case-table () |
37 | "Describe the case table of the current buffer." | |
38 | (interactive) | |
39 | (let ((vector (make-vector 256 nil)) | |
40 | (case-table (current-case-table)) | |
41 | (i 0)) | |
42 | (while (< i 256) | |
43 | (aset vector i | |
44 | (cond ((/= ch (downcase ch)) | |
45 | (concat "uppercase, matches " | |
46 | (text-char-description (downcase ch)))) | |
47 | ((/= ch (upcase ch)) | |
48 | (concat "lowercase, matches " | |
49 | (text-char-description (upcase ch)))) | |
50 | (t "case-invariant"))) | |
51 | (setq i (1+ i)))) | |
52 | (with-output-to-temp-buffer "*Help*" | |
53 | (describe-vector vector))) | |
54 | ||
03131799 | 55 | (defun set-case-syntax-delims (l r string) |
a2535589 | 56 | "Make characters L and R a matching pair of non-case-converting delimiters. |
03131799 RS |
57 | Sets the entries for L and R in STRING, which is a downcasing table. |
58 | Also modifies `standard-syntax-table', and `text-mode-syntax-table' to | |
59 | indicate left and right delimiters." | |
60 | (aset string l l) | |
61 | (aset string r r) | |
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62 | (modify-syntax-entry l (concat "(" (char-to-string r) " ") |
63 | (standard-syntax-table)) | |
64 | (modify-syntax-entry l (concat "(" (char-to-string r) " ") | |
65 | text-mode-syntax-table) | |
66 | (modify-syntax-entry r (concat ")" (char-to-string l) " ") | |
67 | (standard-syntax-table)) | |
68 | (modify-syntax-entry r (concat ")" (char-to-string l) " ") | |
69 | text-mode-syntax-table)) | |
70 | ||
03131799 | 71 | (defun set-case-syntax-pair (uc lc string) |
a2535589 | 72 | "Make characters UC and LC a pair of inter-case-converting letters. |
03131799 RS |
73 | Sets the entries for characters UC and LC in STRING, which is a downcasing table. |
74 | Also modify `standard-syntax-table' and `text-mode-syntax-table' to indicate an | |
49116ac0 | 75 | (uppercase, lowercase) pair of letters." |
03131799 RS |
76 | (aset string uc lc) |
77 | (aset (car (cdr (standard-case-table))) lc uc) | |
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78 | (modify-syntax-entry lc "w " (standard-syntax-table)) |
79 | (modify-syntax-entry lc "w " text-mode-syntax-table) | |
80 | (modify-syntax-entry uc "w " (standard-syntax-table)) | |
81 | (modify-syntax-entry uc "w " text-mode-syntax-table)) | |
82 | ||
03131799 | 83 | (defun set-case-syntax (c syntax string) |
a2535589 | 84 | "Make characters C case-invariant with syntax SYNTAX. |
03131799 RS |
85 | Sets the entries for character C in STRING, which is the downcasing table. |
86 | Also modify `standard-syntax-table' and `text-mode-syntax-table'. | |
a2535589 | 87 | SYNTAX should be \" \", \"w\", \".\" or \"_\"." |
03131799 | 88 | (aset string c c) |
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89 | (modify-syntax-entry c syntax (standard-syntax-table)) |
90 | (modify-syntax-entry c syntax text-mode-syntax-table)) | |
91 | ||
92 | (provide 'case-table) | |
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93 | |
94 | ;;; case-table.el ends here |