462 lines
14 KiB
C
462 lines
14 KiB
C
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/* $XTermId: charsets.c,v 1.33 2006/07/02 17:28:50 tom Exp $ */
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/*
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* $XFree86: xc/programs/xterm/charsets.c,v 1.12 2005/01/14 01:50:02 dickey Exp $
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*/
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/************************************************************
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Copyright 1998-2005,2006 by Thomas E. Dickey
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All Rights Reserved
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Permission is hereby granted, free of charge, to any person obtaining a
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copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be included
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in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name(s) of the above copyright
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holders shall not be used in advertising or otherwise to promote the
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sale, use or other dealings in this Software without prior written
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authorization.
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********************************************************/
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#include <xterm.h>
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#include <data.h>
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#include <fontutils.h>
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#include <X11/keysym.h>
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/*
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* This module performs translation as needed to support the DEC VT220 national
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* replacement character sets. We assume that xterm's font is based on the ISO
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* 8859-1 (Latin 1) character set, which is almost the same as the DEC
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* multinational character set. Glyph positions 0-31 have to be the DEC
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* graphic characters, though.
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*
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* References:
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* "VT220 Programmer Pocket Guide" EK-VT220-HR-002 (2nd ed., 1984), which
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* contains character charts for the national character sets.
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* "VT330/VT340 Programmer Reference Manual Volume 1: Text Programming"
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* EK-VT3XX-TP-001 (1st ed, 1987), which contains a table (2-1)
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* listing the glyphs which are mapped from the multinational
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* character set to the national character set.
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*
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* The latter reference, though easier to read, has a few errors and omissions.
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*/
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/*
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* Translate an input keysym to the corresponding NRC keysym.
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*/
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unsigned xtermCharSetIn(unsigned code, int charset)
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{
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if (code >= 128 && code < 256) {
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switch (charset) {
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case 'A': /* United Kingdom set (or Latin 1) */
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if (code == XK_sterling)
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code = 0x23;
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code &= 0x7f;
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break;
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#if OPT_XMC_GLITCH
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case '?':
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#endif
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case '1': /* Alternate Character ROM standard characters */
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case '2': /* Alternate Character ROM special graphics */
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case 'B': /* ASCII set */
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break;
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case '0': /* special graphics (line drawing) */
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break;
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case '4': /* Dutch */
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switch (code) {
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case XK_sterling: code = 0x23; break;
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case XK_threequarters: code = 0x40; break;
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case XK_ydiaeresis: code = 0x5b; break;
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case XK_onehalf: code = 0x5c; break;
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/* N/A case XK_bar: code = 0x5d; break; */
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case XK_diaeresis: code = 0x7b; break;
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/* N/A case XK_f: code = 0x7c; break; */
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case XK_onequarter: code = 0x7d; break;
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case XK_acute: code = 0x7e; break;
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}
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break;
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case 'C':
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case '5': /* Finnish */
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switch (code) {
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case XK_Adiaeresis: code = 0x5b; break;
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case XK_Odiaeresis: code = 0x5c; break;
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case XK_Aring: code = 0x5d; break;
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case XK_Udiaeresis: code = 0x5e; break;
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case XK_eacute: code = 0x60; break;
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case XK_adiaeresis: code = 0x7b; break;
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case XK_odiaeresis: code = 0x7c; break;
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case XK_aring: code = 0x7d; break;
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case XK_udiaeresis: code = 0x7e; break;
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}
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break;
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case 'R': /* French */
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switch (code) {
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case XK_sterling: code = 0x23; break;
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case XK_agrave: code = 0x40; break;
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case XK_degree: code = 0x5b; break;
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case XK_ccedilla: code = 0x5c; break;
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case XK_section: code = 0x5d; break;
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case XK_eacute: code = 0x7b; break;
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case XK_ugrave: code = 0x7c; break;
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case XK_egrave: code = 0x7d; break;
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case XK_diaeresis: code = 0x7e; break;
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}
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break;
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case 'Q': /* French Canadian */
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switch (code) {
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case XK_agrave: code = 0x40; break;
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case XK_acircumflex: code = 0x5b; break;
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case XK_ccedilla: code = 0x5c; break;
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case XK_ecircumflex: code = 0x5d; break;
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case XK_icircumflex: code = 0x5e; break;
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case XK_ocircumflex: code = 0x60; break;
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case XK_eacute: code = 0x7b; break;
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case XK_ugrave: code = 0x7c; break;
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case XK_egrave: code = 0x7d; break;
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case XK_ucircumflex: code = 0x7e; break;
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}
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break;
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case 'K': /* German */
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switch (code) {
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case XK_section: code = 0x40; break;
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case XK_Adiaeresis: code = 0x5b; break;
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case XK_Odiaeresis: code = 0x5c; break;
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case XK_Udiaeresis: code = 0x5d; break;
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case XK_adiaeresis: code = 0x7b; break;
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case XK_odiaeresis: code = 0x7c; break;
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case XK_udiaeresis: code = 0x7d; break;
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case XK_ssharp: code = 0x7e; break;
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}
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break;
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case 'Y': /* Italian */
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switch (code) {
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case XK_sterling: code = 0x23; break;
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case XK_section: code = 0x40; break;
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case XK_degree: code = 0x5b; break;
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case XK_ccedilla: code = 0x5c; break;
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case XK_eacute: code = 0x5d; break;
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case XK_ugrave: code = 0x60; break;
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case XK_agrave: code = 0x7b; break;
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case XK_ograve: code = 0x7c; break;
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case XK_egrave: code = 0x7d; break;
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case XK_igrave: code = 0x7e; break;
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}
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break;
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case 'E':
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case '6': /* Norwegian/Danish */
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switch (code) {
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case XK_Adiaeresis: code = 0x40; break;
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case XK_AE: code = 0x5b; break;
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case XK_Ooblique: code = 0x5c; break;
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case XK_Aring: code = 0x5d; break;
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case XK_Udiaeresis: code = 0x5e; break;
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case XK_adiaeresis: code = 0x60; break;
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case XK_ae: code = 0x7b; break;
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case XK_oslash: code = 0x7c; break;
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case XK_aring: code = 0x7d; break;
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case XK_udiaeresis: code = 0x7e; break;
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}
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break;
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case 'Z': /* Spanish */
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switch (code) {
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case XK_sterling: code = 0x23; break;
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case XK_section: code = 0x40; break;
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case XK_exclamdown: code = 0x5b; break;
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case XK_Ntilde: code = 0x5c; break;
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case XK_questiondown: code = 0x5d; break;
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case XK_degree: code = 0x7b; break;
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case XK_ntilde: code = 0x7c; break;
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case XK_ccedilla: code = 0x7d; break;
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}
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break;
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case 'H':
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case '7': /* Swedish */
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switch (code) {
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case XK_Eacute: code = 0x40; break;
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case XK_Adiaeresis: code = 0x5b; break;
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case XK_Odiaeresis: code = 0x5c; break;
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case XK_Aring: code = 0x5d; break;
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case XK_Udiaeresis: code = 0x5e; break;
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case XK_eacute: code = 0x60; break;
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case XK_adiaeresis: code = 0x7b; break;
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case XK_odiaeresis: code = 0x7c; break;
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case XK_aring: code = 0x7d; break;
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case XK_udiaeresis: code = 0x7e; break;
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}
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break;
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case '=': /* Swiss */
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switch (code) {
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case XK_ugrave: code = 0x23; break;
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case XK_agrave: code = 0x40; break;
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case XK_eacute: code = 0x5b; break;
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case XK_ccedilla: code = 0x5c; break;
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case XK_ecircumflex: code = 0x5d; break;
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case XK_icircumflex: code = 0x5e; break;
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case XK_egrave: code = 0x5f; break;
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case XK_ocircumflex: code = 0x60; break;
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case XK_adiaeresis: code = 0x7b; break;
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case XK_odiaeresis: code = 0x7c; break;
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case XK_udiaeresis: code = 0x7d; break;
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case XK_ucircumflex: code = 0x7e; break;
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}
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break;
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default: /* any character sets we don't recognize*/
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break;
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}
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code &= 0x7f; /* NRC in any case is 7-bit */
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}
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return code;
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}
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/*
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* Translate a string to the display form. This assumes the font has the
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* DEC graphic characters in cells 0-31, and otherwise is ISO-8859-1.
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*/
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int xtermCharSetOut(IChar *buf, IChar *ptr, int leftset)
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{
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IChar *s;
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register TScreen *screen = &term->screen;
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int count = 0;
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int rightset = screen->gsets[(int)(screen->curgr)];
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TRACE(("CHARSET GL=%c(G%d) GR=%c(G%d) SS%d:%s\n",
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leftset, screen->curgl,
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rightset, screen->curgr,
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screen->curss,
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visibleIChar(buf, (unsigned)(ptr - buf))));
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for (s = buf; s < ptr; ++s) {
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int eight = CharOf(E2A(*s));
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int seven = eight & 0x7f;
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int cs = (eight >= 128) ? rightset : leftset;
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int chr = eight;
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count++;
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switch (cs) {
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case 'A': /* United Kingdom set (or Latin 1) */
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if ((term->flags & NATIONAL)
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|| (screen->vtXX_level <= 1)) {
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if (chr == 0x23)
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chr = XPOUND; /* UK pound sign*/
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} else {
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chr = (seven | 0x80);
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}
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break;
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#if OPT_XMC_GLITCH
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case '?':
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#endif
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case '1': /* Alternate Character ROM standard characters */
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case '2': /* Alternate Character ROM special graphics */
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case 'B': /* ASCII set */
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break;
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case '0': /* special graphics (line drawing) */
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if (seven > 0x5f && seven <= 0x7e) {
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#if OPT_WIDE_CHARS
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if (screen->utf8_mode)
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chr = dec2ucs((unsigned)(seven - 0x5f));
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else
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#endif
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chr = seven - 0x5f;
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} else {
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chr = seven;
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}
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break;
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case '4': /* Dutch */
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switch (chr = seven) {
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case 0x23: chr = XK_sterling; break;
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case 0x40: chr = XK_threequarters; break;
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case 0x5b: chr = XK_ydiaeresis; break;
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case 0x5c: chr = XK_onehalf; break;
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case 0x5d: chr = XK_bar; break;
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case 0x7b: chr = XK_diaeresis; break;
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case 0x7c: chr = XK_f; break;
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case 0x7d: chr = XK_onequarter; break;
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case 0x7e: chr = XK_acute; break;
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}
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break;
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case 'C':
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case '5': /* Finnish */
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switch (chr = seven) {
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case 0x5b: chr = XK_Adiaeresis; break;
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case 0x5c: chr = XK_Odiaeresis; break;
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case 0x5d: chr = XK_Aring; break;
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case 0x5e: chr = XK_Udiaeresis; break;
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case 0x60: chr = XK_eacute; break;
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case 0x7b: chr = XK_adiaeresis; break;
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case 0x7c: chr = XK_odiaeresis; break;
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case 0x7d: chr = XK_aring; break;
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case 0x7e: chr = XK_udiaeresis; break;
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}
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break;
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case 'R': /* French */
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switch (chr = seven) {
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case 0x23: chr = XK_sterling; break;
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case 0x40: chr = XK_agrave; break;
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case 0x5b: chr = XK_degree; break;
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case 0x5c: chr = XK_ccedilla; break;
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case 0x5d: chr = XK_section; break;
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case 0x7b: chr = XK_eacute; break;
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case 0x7c: chr = XK_ugrave; break;
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case 0x7d: chr = XK_egrave; break;
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case 0x7e: chr = XK_diaeresis; break;
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}
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break;
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case 'Q': /* French Canadian */
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switch (chr = seven) {
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case 0x40: chr = XK_agrave; break;
|
||
|
|
case 0x5b: chr = XK_acircumflex; break;
|
||
|
|
case 0x5c: chr = XK_ccedilla; break;
|
||
|
|
case 0x5d: chr = XK_ecircumflex; break;
|
||
|
|
case 0x5e: chr = XK_icircumflex; break;
|
||
|
|
case 0x60: chr = XK_ocircumflex; break;
|
||
|
|
case 0x7b: chr = XK_eacute; break;
|
||
|
|
case 0x7c: chr = XK_ugrave; break;
|
||
|
|
case 0x7d: chr = XK_egrave; break;
|
||
|
|
case 0x7e: chr = XK_ucircumflex; break;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'K': /* German */
|
||
|
|
switch (chr = seven) {
|
||
|
|
case 0x40: chr = XK_section; break;
|
||
|
|
case 0x5b: chr = XK_Adiaeresis; break;
|
||
|
|
case 0x5c: chr = XK_Odiaeresis; break;
|
||
|
|
case 0x5d: chr = XK_Udiaeresis; break;
|
||
|
|
case 0x7b: chr = XK_adiaeresis; break;
|
||
|
|
case 0x7c: chr = XK_odiaeresis; break;
|
||
|
|
case 0x7d: chr = XK_udiaeresis; break;
|
||
|
|
case 0x7e: chr = XK_ssharp; break;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'Y': /* Italian */
|
||
|
|
switch (chr = seven) {
|
||
|
|
case 0x23: chr = XK_sterling; break;
|
||
|
|
case 0x40: chr = XK_section; break;
|
||
|
|
case 0x5b: chr = XK_degree; break;
|
||
|
|
case 0x5c: chr = XK_ccedilla; break;
|
||
|
|
case 0x5d: chr = XK_eacute; break;
|
||
|
|
case 0x60: chr = XK_ugrave; break;
|
||
|
|
case 0x7b: chr = XK_agrave; break;
|
||
|
|
case 0x7c: chr = XK_ograve; break;
|
||
|
|
case 0x7d: chr = XK_egrave; break;
|
||
|
|
case 0x7e: chr = XK_igrave; break;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'E':
|
||
|
|
case '6': /* Norwegian/Danish */
|
||
|
|
switch (chr = seven) {
|
||
|
|
case 0x40: chr = XK_Adiaeresis; break;
|
||
|
|
case 0x5b: chr = XK_AE; break;
|
||
|
|
case 0x5c: chr = XK_Ooblique; break;
|
||
|
|
case 0x5d: chr = XK_Aring; break;
|
||
|
|
case 0x5e: chr = XK_Udiaeresis; break;
|
||
|
|
case 0x60: chr = XK_adiaeresis; break;
|
||
|
|
case 0x7b: chr = XK_ae; break;
|
||
|
|
case 0x7c: chr = XK_oslash; break;
|
||
|
|
case 0x7d: chr = XK_aring; break;
|
||
|
|
case 0x7e: chr = XK_udiaeresis; break;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'Z': /* Spanish */
|
||
|
|
switch (chr = seven) {
|
||
|
|
case 0x23: chr = XK_sterling; break;
|
||
|
|
case 0x40: chr = XK_section; break;
|
||
|
|
case 0x5b: chr = XK_exclamdown; break;
|
||
|
|
case 0x5c: chr = XK_Ntilde; break;
|
||
|
|
case 0x5d: chr = XK_questiondown; break;
|
||
|
|
case 0x7b: chr = XK_degree; break;
|
||
|
|
case 0x7c: chr = XK_ntilde; break;
|
||
|
|
case 0x7d: chr = XK_ccedilla; break;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case 'H':
|
||
|
|
case '7': /* Swedish */
|
||
|
|
switch (chr = seven) {
|
||
|
|
case 0x40: chr = XK_Eacute; break;
|
||
|
|
case 0x5b: chr = XK_Adiaeresis; break;
|
||
|
|
case 0x5c: chr = XK_Odiaeresis; break;
|
||
|
|
case 0x5d: chr = XK_Aring; break;
|
||
|
|
case 0x5e: chr = XK_Udiaeresis; break;
|
||
|
|
case 0x60: chr = XK_eacute; break;
|
||
|
|
case 0x7b: chr = XK_adiaeresis; break;
|
||
|
|
case 0x7c: chr = XK_odiaeresis; break;
|
||
|
|
case 0x7d: chr = XK_aring; break;
|
||
|
|
case 0x7e: chr = XK_udiaeresis; break;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
case '=': /* Swiss */
|
||
|
|
switch (chr = seven) {
|
||
|
|
case 0x23: chr = XK_ugrave; break;
|
||
|
|
case 0x40: chr = XK_agrave; break;
|
||
|
|
case 0x5b: chr = XK_eacute; break;
|
||
|
|
case 0x5c: chr = XK_ccedilla; break;
|
||
|
|
case 0x5d: chr = XK_ecircumflex; break;
|
||
|
|
case 0x5e: chr = XK_icircumflex; break;
|
||
|
|
case 0x5f: chr = XK_egrave; break;
|
||
|
|
case 0x60: chr = XK_ocircumflex; break;
|
||
|
|
case 0x7b: chr = XK_adiaeresis; break;
|
||
|
|
case 0x7c: chr = XK_odiaeresis; break;
|
||
|
|
case 0x7d: chr = XK_udiaeresis; break;
|
||
|
|
case 0x7e: chr = XK_ucircumflex; break;
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
|
||
|
|
default: /* any character sets we don't recognize*/
|
||
|
|
count --;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
/*
|
||
|
|
* The state machine already treated DEL as a nonprinting and
|
||
|
|
* nonspacing character. If we have DEL now, simply render
|
||
|
|
* it as a blank.
|
||
|
|
*/
|
||
|
|
if (chr == DEL)
|
||
|
|
chr = ' ';
|
||
|
|
*s = A2E(chr);
|
||
|
|
}
|
||
|
|
return count;
|
||
|
|
}
|