/usr/share/emacs/site-lisp/w3m/w3m-ucs.el is in w3m-el 1.4.569+0.20170110-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | ;;; w3m-ucs.el --- CCL programs to process Unicode.
;; Copyright (C) 2001, 2005, 2007 TSUCHIYA Masatoshi <tsuchiya@namazu.org>
;; Authors: TSUCHIYA Masatoshi <tsuchiya@namazu.org>,
;; ARISAWA Akihiro <ari@mbf.sphere.ne.jp>
;; Keywords: w3m, WWW, hypermedia
;; This file is a part of emacs-w3m.
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2, or (at your option)
;; any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program; see the file COPYING. If not, write to
;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;; This file contains CCL codes to handle UCS characters in emacs-w3m.
;; For more detail about emacs-w3m, see:
;;
;; http://emacs-w3m.namazu.org/
;; This module requires `Mule-UCS' package. It can be downloaded from:
;;
;; ftp://ftp.m17n.org/pub/mule/Mule-UCS/
;;; Code:
;; Enable XEmacs 21.5-Mule to compile this module anyway.
(eval-when-compile
(if (featurep 'xemacs)
(let ((mucs-ignore-version-incompatibilities t))
(defvar font-ccl-encoder-alist nil)
(require 'un-define))))
(require 'un-define)
(require 'w3m-ccl)
(eval-and-compile
(autoload 'w3m-make-ccl-coding-system "w3m"))
(defun w3m-ucs-to-char (codepoint)
(condition-case nil
(or (ucs-to-char codepoint) ?~)
(error ?~)))
(eval-and-compile
(defconst w3m-ccl-get-ucs-codepoint-with-mule-ucs
'(;; (1) Convert a set of r1 (charset-id) and r0 (codepoint) to a
;; character in Emacs internal representation.
(if (r0 > 255)
((r4 = (r0 & 127))
(r0 = (((r0 >> 7) * 96) + r4))
(r0 |= (r1 << 16)))
((r0 |= (r1 << 16))))
;; (2) Convert a character in Emacs to a UCS codepoint.
(call emacs-char-to-ucs-codepoint-conversion)
(if (r0 <= 0)
(write-repeat ?~))) ; unknown character.
"CCL program to convert multibyte char to ucs with Mule-UCS."))
(define-ccl-program w3m-euc-japan-mule-ucs-encoder
`(4
(loop
,@w3m-ccl-write-euc-japan-character
,@w3m-ccl-get-ucs-codepoint-with-mule-ucs
,@w3m-ccl-generate-ncr)))
(w3m-make-ccl-coding-system
'w3m-euc-japan-mule-ucs ?E
"ISO 2022 based EUC encoding for Japanese with w3m internal characters.
A character that can not be encoded with `euc-japan' is converted to a
UCS codepoint with Mule-UCS, and the codepoint is represented as a
string which represents the character in Numeric Character
References (NCR).
(generated by `w3m')"
'w3m-euc-japan-decoder
'w3m-euc-japan-mule-ucs-encoder)
(define-ccl-program w3m-iso-latin-1-mule-ucs-encoder
`(4
(loop
,@w3m-ccl-write-iso-latin-1-character
,@w3m-ccl-get-ucs-codepoint-with-mule-ucs
,@w3m-ccl-generate-ncr)))
(w3m-make-ccl-coding-system
'w3m-iso-latin-1-mule-ucs ?1
"ISO 2022 based 8-bit encoding for Latin-1 with w3m internal characters.
A character that can not be encoded with `iso-latin-1' is converted to
a UCS codepoint with Mule-UCS, and the codepoint is represented as a
string which represents the character in Numeric Character
References (NCR).
(generated by `w3m')"
'w3m-iso-latin-1-decoder
'w3m-iso-latin-1-mule-ucs-encoder)
(provide 'w3m-ucs)
;;; w3m-ucs.el ends here.
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