645 lines
15 KiB
C
645 lines
15 KiB
C
/* $XTermId: xtermcap.c,v 1.49 2016/05/22 18:31:20 tom Exp $ */
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/*
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* Copyright 2007-2014,2016 by Thomas E. Dickey
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*
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* All Rights Reserved
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*
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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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*
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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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*
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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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*
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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 <xtermcap.h>
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#include <data.h>
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#include <X11/keysym.h>
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#include <ctype.h>
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#ifdef VMS
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#include <X11/keysymdef.h>
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#endif
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#include <xstrings.h>
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#if USE_TERMINFO && defined(NCURSES_VERSION) && defined(HAVE_USE_EXTENDED_NAMES)
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#define USE_EXTENDED_NAMES 1
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#else
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#define USE_EXTENDED_NAMES 0
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#endif
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#if USE_TERMINFO
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#define TcapInit(buffer, name) (setupterm(name, fileno(stdout), &ignored) == OK)
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#else
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#define TcapInit(buffer, name) (tgetent(buffer, name) == 1)
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#endif
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#define NO_STRING (char *)(-1)
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#if OPT_TCAP_QUERY || OPT_TCAP_FKEYS
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#define SHIFT (MOD_NONE + MOD_SHIFT)
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typedef struct {
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const char *tc;
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const char *ti;
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int code;
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unsigned param; /* see xtermStateToParam() */
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} TCAPINFO;
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/* *INDENT-OFF* */
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#define DATA(tc,ti,x,y) { tc, ti, x, y }
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static const TCAPINFO table[] = {
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/* tcap terminfo code state */
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DATA( "%1", "khlp", XK_Help, 0 ),
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DATA( "#1", "kHLP", XK_Help, SHIFT ),
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DATA( "@0", "kfnd", XK_Find, 0 ),
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DATA( "*0", "kFND", XK_Find, SHIFT ),
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DATA( "*6", "kslt", XK_Select, 0 ),
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DATA( "#6", "kSLT", XK_Select, SHIFT ),
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DATA( "kh", "khome", XK_Home, 0 ),
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DATA( "#2", "kHOM", XK_Home, SHIFT ),
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DATA( "@7", "kend", XK_End, 0 ),
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DATA( "*7", "kEND", XK_End, SHIFT ),
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DATA( "kl", "kcub1", XK_Left, 0 ),
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DATA( "kr", "kcuf1", XK_Right, 0 ),
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DATA( "ku", "kcuu1", XK_Up, 0 ),
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DATA( "kd", "kcud1", XK_Down, 0 ),
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DATA( "#4", "kLFT", XK_Left, SHIFT ),
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DATA( "%i", "kRIT", XK_Right, SHIFT ),
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DATA( "kF", "kind", XK_Down, SHIFT ),
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DATA( "kR", "kri", XK_Up, SHIFT ),
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DATA( "k1", "kf1", XK_Fn(1), 0 ),
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DATA( "k2", "kf2", XK_Fn(2), 0 ),
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DATA( "k3", "kf3", XK_Fn(3), 0 ),
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DATA( "k4", "kf4", XK_Fn(4), 0 ),
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DATA( "k5", "kf5", XK_Fn(5), 0 ),
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DATA( "k6", "kf6", XK_Fn(6), 0 ),
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DATA( "k7", "kf7", XK_Fn(7), 0 ),
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DATA( "k8", "kf8", XK_Fn(8), 0 ),
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DATA( "k9", "kf9", XK_Fn(9), 0 ),
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DATA( "k;", "kf10", XK_Fn(10), 0 ),
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DATA( "F1", "kf11", XK_Fn(11), 0 ),
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DATA( "F2", "kf12", XK_Fn(12), 0 ),
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DATA( "F3", "kf13", XK_Fn(13), 0 ),
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DATA( "F4", "kf14", XK_Fn(14), 0 ),
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DATA( "F5", "kf15", XK_Fn(15), 0 ),
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DATA( "F6", "kf16", XK_Fn(16), 0 ),
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DATA( "F7", "kf17", XK_Fn(17), 0 ),
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DATA( "F8", "kf18", XK_Fn(18), 0 ),
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DATA( "F9", "kf19", XK_Fn(19), 0 ),
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DATA( "FA", "kf20", XK_Fn(20), 0 ),
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DATA( "FB", "kf21", XK_Fn(21), 0 ),
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DATA( "FC", "kf22", XK_Fn(22), 0 ),
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DATA( "FD", "kf23", XK_Fn(23), 0 ),
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DATA( "FE", "kf24", XK_Fn(24), 0 ),
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DATA( "FF", "kf25", XK_Fn(25), 0 ),
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DATA( "FG", "kf26", XK_Fn(26), 0 ),
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DATA( "FH", "kf27", XK_Fn(27), 0 ),
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DATA( "FI", "kf28", XK_Fn(28), 0 ),
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DATA( "FJ", "kf29", XK_Fn(29), 0 ),
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DATA( "FK", "kf30", XK_Fn(30), 0 ),
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DATA( "FL", "kf31", XK_Fn(31), 0 ),
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DATA( "FM", "kf32", XK_Fn(32), 0 ),
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DATA( "FN", "kf33", XK_Fn(33), 0 ),
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DATA( "FO", "kf34", XK_Fn(34), 0 ),
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DATA( "FP", "kf35", XK_Fn(35), 0 ),
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DATA( "FQ", "kf36", -36, 0 ),
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DATA( "FR", "kf37", -37, 0 ),
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DATA( "FS", "kf38", -38, 0 ),
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DATA( "FT", "kf39", -39, 0 ),
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DATA( "FU", "kf40", -40, 0 ),
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DATA( "FV", "kf41", -41, 0 ),
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DATA( "FW", "kf42", -42, 0 ),
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DATA( "FX", "kf43", -43, 0 ),
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DATA( "FY", "kf44", -44, 0 ),
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DATA( "FZ", "kf45", -45, 0 ),
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DATA( "Fa", "kf46", -46, 0 ),
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DATA( "Fb", "kf47", -47, 0 ),
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DATA( "Fc", "kf48", -48, 0 ),
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DATA( "Fd", "kf49", -49, 0 ),
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DATA( "Fe", "kf50", -50, 0 ),
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DATA( "Ff", "kf51", -51, 0 ),
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DATA( "Fg", "kf52", -52, 0 ),
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DATA( "Fh", "kf53", -53, 0 ),
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DATA( "Fi", "kf54", -54, 0 ),
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DATA( "Fj", "kf55", -55, 0 ),
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DATA( "Fk", "kf56", -56, 0 ),
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DATA( "Fl", "kf57", -57, 0 ),
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DATA( "Fm", "kf58", -58, 0 ),
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DATA( "Fn", "kf59", -59, 0 ),
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DATA( "Fo", "kf60", -60, 0 ),
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DATA( "Fp", "kf61", -61, 0 ),
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DATA( "Fq", "kf62", -62, 0 ),
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DATA( "Fr", "kf63", -63, 0 ),
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DATA( "K1", "ka1", XK_KP_Home, 0 ),
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DATA( "K4", "kc1", XK_KP_End, 0 ),
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DATA( "K3", "ka3", XK_KP_Prior, 0 ),
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DATA( "K5", "kc3", XK_KP_Next, 0 ),
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#ifdef XK_ISO_Left_Tab
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DATA( "kB", "kcbt", XK_ISO_Left_Tab, 0 ),
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#endif
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DATA( "kC", "kclr", XK_Clear, 0 ),
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DATA( "kD", "kdch1", XK_Delete, 0 ),
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DATA( "kI", "kich1", XK_Insert, 0 ),
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DATA( "kN", "knp", XK_Next, 0 ),
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DATA( "kP", "kpp", XK_Prior, 0 ),
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DATA( "%c", "kNXT", XK_Next, SHIFT ),
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DATA( "%e", "kPRV", XK_Prior, SHIFT ),
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DATA( "&8", "kund", XK_Undo, 0 ),
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DATA( "kb", "kbs", XK_BackSpace, 0 ),
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# if OPT_TCAP_QUERY && OPT_ISO_COLORS
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/* XK_COLORS is a fake code. */
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DATA( "Co", "colors", XK_COLORS, 0 ),
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# endif
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DATA( "TN", "name", XK_TCAPNAME, 0 ),
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#if USE_EXTENDED_NAMES
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#define DEXT(name, parm, code) DATA("", name, code, parm)
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#define D1ST(name, parm, code) DEXT("k" #name, parm, code)
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#define DMOD(name, parm, code) DEXT("k" #name #parm, parm, code)
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#define DGRP(name, code) \
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D1ST(name, 2, code), \
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DMOD(name, 3, code), \
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DMOD(name, 4, code), \
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DMOD(name, 5, code), \
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DMOD(name, 6, code), \
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DMOD(name, 7, code), \
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DMOD(name, 8, code)
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/* the terminfo codes here are ncurses extensions */
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/* ignore the termcap names, which are empty */
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DATA( "", "kUP", XK_Up, SHIFT ),
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DATA( "", "kDN", XK_Up, SHIFT ),
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DGRP(DN, XK_Down),
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DGRP(LFT, XK_Left),
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DGRP(RIT, XK_Right),
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DGRP(UP, XK_Up),
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DGRP(DC, XK_Delete),
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DGRP(END, XK_End),
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DGRP(HOM, XK_Home),
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DGRP(IC, XK_Insert),
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DGRP(NXT, XK_Next),
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DGRP(PRV, XK_Prior),
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#endif
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};
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#undef DATA
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/* *INDENT-ON* */
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#if OPT_TCAP_FKEYS
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static Boolean
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loadTermcapStrings(TScreen *screen)
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{
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Boolean result = True;
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if (screen->tcap_fkeys == 0) {
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Cardinal want = XtNumber(table);
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Cardinal have;
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#ifdef USE_TERMCAP
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char *area = screen->tcap_area;
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#endif
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TRACE(("loadTermcapStrings\n"));
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if ((screen->tcap_fkeys = TypeCallocN(char *, want)) != 0) {
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for (have = 0; have < want; ++have) {
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char name[80];
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char *fkey;
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#ifndef USE_TERMCAP
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fkey = tigetstr(strcpy(name, table[have].ti));
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#else
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fkey = tgetstr(strcpy(name, table[have].tc), &area);
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#endif
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if (fkey != 0 && fkey != NO_STRING) {
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screen->tcap_fkeys[have] = x_strdup(fkey);
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} else {
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screen->tcap_fkeys[have] = NO_STRING;
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}
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}
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} else {
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result = False;
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}
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}
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return result;
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}
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#endif
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#if OPT_TCAP_QUERY
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static Boolean
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keyIsDistinct(XtermWidget xw, int which)
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{
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Boolean result = True;
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switch (xw->keyboard.type) {
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case keyboardIsTermcap:
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#if OPT_TCAP_FKEYS
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if (table[which].param == SHIFT) {
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TScreen *screen = TScreenOf(xw);
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Cardinal k;
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if (loadTermcapStrings(screen)
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&& screen->tcap_fkeys[which] != NO_STRING) {
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for (k = 0; k < XtNumber(table); k++) {
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if (table[k].code == table[which].code
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&& table[k].param == 0) {
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char *fkey;
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if ((fkey = screen->tcap_fkeys[k]) != NO_STRING
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&& !strcmp(fkey, screen->tcap_fkeys[which])) {
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TRACE(("shifted/unshifted keys do not differ\n"));
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result = False;
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}
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break;
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}
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}
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} else {
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/* there is no data for the shifted key */
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result = -1;
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}
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}
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#endif
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break;
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/*
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* The vt220-keyboard will not return distinct key sequences for
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* shifted cursor-keys. Just pretend they do not exist, since some
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* programs may be confused if we return the same data for
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* shifted/unshifted keys.
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*/
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case keyboardIsVT220:
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if (table[which].param == SHIFT) {
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TRACE(("shifted/unshifted keys do not differ\n"));
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result = False;
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}
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break;
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case keyboardIsLegacy:
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case keyboardIsDefault:
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case keyboardIsHP:
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case keyboardIsSCO:
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case keyboardIsSun:
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break;
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}
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return result;
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}
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static int
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lookupTcapByName(const char *name)
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{
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int result = -2;
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Cardinal j;
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if (!IsEmpty(name)) {
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for (j = 0; j < XtNumber(table); j++) {
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if (!strcmp(table[j].ti, name) || !strcmp(table[j].tc, name)) {
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result = (int) j;
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break;
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}
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}
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}
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if (result >= 0) {
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TRACE(("lookupTcapByName(%s) tc=%s, ti=%s code %#x, param %#x\n",
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name,
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table[result].tc,
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table[result].ti,
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table[result].code,
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table[result].param));
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} else {
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TRACE(("lookupTcapByName(%s) FAIL\n", name));
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}
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return result;
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}
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/*
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* Parse the termcap/terminfo name from the string, returning a positive number
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* (the keysym) if found, otherwise -1. Update the string pointer.
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* Returns the (shift, control) state in *state.
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*
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* This does not attempt to construct control/shift modifiers to construct
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* function-key values. Instead, it sets the *fkey flag to pass to Input()
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* and bypass the lookup of keysym altogether.
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*/
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int
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xtermcapKeycode(XtermWidget xw, const char **params, unsigned *state, Bool *fkey)
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{
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const TCAPINFO *data;
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int code = -1;
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char *name;
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const char *p;
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TRACE(("xtermcapKeycode(%s)\n", *params));
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/* Convert hex encoded name to ascii */
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name = x_decode_hex(*params, &p);
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*params = p;
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*state = 0;
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*fkey = False;
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if (!IsEmpty(name) && (*p == 0 || *p == ';')) {
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int which;
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if ((which = lookupTcapByName(name)) >= 0) {
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if (keyIsDistinct(xw, which)) {
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data = table + which;
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code = data->code;
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*state = xtermParamToState(xw, data->param);
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if (IsFunctionKey(code)) {
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*fkey = True;
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} else if (code < 0) {
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*fkey = True;
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code = XK_Fn((-code));
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}
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#if OPT_SUN_FUNC_KEYS
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if (*fkey && xw->keyboard.type == keyboardIsSun) {
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int num = code - XK_Fn(0);
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/* match function-key case in sunfuncvalue() */
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if (num > 20) {
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if (num <= 30 || num > 47) {
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code = -1;
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} else {
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code -= 10;
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switch (num) {
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case 37: /* khome */
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case 39: /* kpp */
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case 41: /* kb2 */
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case 43: /* kend */
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case 45: /* knp */
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code = -1;
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break;
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}
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}
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}
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}
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#endif
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} else {
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TRACE(("... name ok, data not ok\n"));
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code = -1;
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}
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} else {
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TRACE(("... name not ok\n"));
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code = -2;
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}
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} else {
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TRACE(("... name not ok\n"));
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code = -2;
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}
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TRACE(("... xtermcapKeycode(%s, %u, %d) -> %#06x\n",
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name, *state, *fkey, code));
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free(name);
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return code;
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}
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#endif /* OPT_TCAP_QUERY */
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#if OPT_TCAP_FKEYS
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static int
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nextTcapByCode(int code, unsigned param, int last)
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{
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int result = -1;
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int n;
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TRACE(("lookupTcapByCode %#x:%#x\n", code, param));
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for (n = last + 1; n < (int) XtNumber(table); n++) {
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if (table[n].code == code &&
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table[n].param == param) {
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TRACE(("->lookupTcapByCode %d:%s\n", n, table[n].ti));
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result = n;
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break;
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}
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}
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return result;
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}
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static int
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firstTcapByCode(int code, unsigned param)
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{
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return nextTcapByCode(code, param, -1);
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}
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int
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xtermcapString(XtermWidget xw, int keycode, unsigned mask)
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{
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int result = 0;
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unsigned param = xtermStateToParam(xw, mask);
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int which;
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if ((which = firstTcapByCode(keycode, param)) >= 0) {
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TScreen *screen = TScreenOf(xw);
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if (loadTermcapStrings(screen)) {
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do {
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char *fkey;
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if ((fkey = screen->tcap_fkeys[which]) != NO_STRING) {
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StringInput(xw, (Char *) fkey, strlen(fkey));
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result = 1;
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break;
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}
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} while ((which = nextTcapByCode(keycode, param, which)) >= 0);
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}
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}
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TRACE(("xtermcapString(keycode=%#x, mask=%#x) ->%d\n",
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keycode, mask, result));
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|
|
return result;
|
|
}
|
|
#endif /* OPT_TCAP_FKEYS */
|
|
|
|
#endif /* OPT_TCAP_QUERY || OPT_TCAP_FKEYS */
|
|
|
|
/*
|
|
* If we're linked to terminfo, tgetent() will return an empty buffer. We
|
|
* cannot use that to adjust the $TERMCAP variable.
|
|
*/
|
|
Bool
|
|
get_termcap(XtermWidget xw, char *name)
|
|
{
|
|
#if USE_TERMINFO
|
|
int ignored = 0;
|
|
#endif
|
|
char *buffer = get_tcap_buffer(xw);
|
|
|
|
*buffer = 0; /* initialize, in case we're using terminfo's tgetent */
|
|
|
|
#if USE_EXTENDED_NAMES
|
|
use_extended_names(TRUE);
|
|
#endif
|
|
if (!IsEmpty(name)) {
|
|
if (TcapInit(buffer, name)) {
|
|
TRACE(("get_termcap(%s) succeeded (%s)\n", name,
|
|
(*buffer
|
|
? "ok:termcap, we can update $TERMCAP"
|
|
: "assuming this is terminfo")));
|
|
return True;
|
|
} else {
|
|
*buffer = 0; /* just in case */
|
|
}
|
|
}
|
|
return False;
|
|
}
|
|
|
|
/*
|
|
* Retrieve the termcap-buffer.
|
|
*/
|
|
char *
|
|
get_tcap_buffer(XtermWidget xw)
|
|
{
|
|
TScreen *screen = TScreenOf(xw);
|
|
char *buffer;
|
|
|
|
#if OPT_TEK4014
|
|
if (TEK4014_ACTIVE(xw)) {
|
|
buffer = TekScreenOf(tekWidget)->tcapbuf;
|
|
} else
|
|
#endif
|
|
{
|
|
buffer = screen->tcapbuf;
|
|
}
|
|
return buffer;
|
|
}
|
|
|
|
/*
|
|
* Retrieve the erase-key, for initialization in main program.
|
|
*/
|
|
char *
|
|
get_tcap_erase(XtermWidget xw GCC_UNUSED)
|
|
{
|
|
#ifdef USE_TERMCAP
|
|
char *area = TScreenOf(xw)->tcap_area;
|
|
#endif
|
|
char *fkey;
|
|
|
|
#ifndef USE_TERMCAP
|
|
fkey = tigetstr("kbs");
|
|
#else
|
|
fkey = tgetstr("kb", &area);
|
|
#endif
|
|
|
|
if (fkey == NO_STRING)
|
|
fkey = 0;
|
|
if (fkey != 0)
|
|
fkey = x_strdup(fkey);
|
|
return fkey;
|
|
}
|
|
|
|
/*
|
|
* A legal termcap (or terminfo) name consists solely of graphic characters,
|
|
* excluding the punctuation used to delimit fields of the source description.
|
|
*/
|
|
static Bool
|
|
isLegalTcapName(const char *name)
|
|
{
|
|
Bool result = False;
|
|
|
|
if (*name != '\0') {
|
|
result = True;
|
|
while (*name != '\0') {
|
|
if (isgraph(CharOf(*name))) {
|
|
if (strchr("\\|,:'\"", *name) != 0) {
|
|
result = False;
|
|
break;
|
|
}
|
|
} else {
|
|
result = False;
|
|
break;
|
|
}
|
|
++name;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void
|
|
set_termcap(XtermWidget xw, const char *name)
|
|
{
|
|
Boolean success = False;
|
|
#if USE_TERMINFO
|
|
int ignored = 0;
|
|
#else
|
|
TScreen *screen = TScreenOf(xw);
|
|
char buffer[sizeof(screen->tcapbuf)];
|
|
#endif
|
|
|
|
TRACE(("set_termcap(%s)\n", NonNull(name)));
|
|
if (IsEmpty(name)) {
|
|
Bell(xw, XkbBI_MinorError, 0);
|
|
} else {
|
|
const char *temp;
|
|
char *value;
|
|
|
|
if ((value = x_decode_hex(name, &temp)) != 0) {
|
|
if (*temp == '\0' && isLegalTcapName(value)) {
|
|
if (TcapInit(buffer, value)) {
|
|
#if !USE_TERMINFO
|
|
memcpy(screen->tcapbuf, buffer, sizeof(buffer));
|
|
#endif
|
|
free_termcap(xw);
|
|
success = True;
|
|
}
|
|
}
|
|
free(value);
|
|
}
|
|
}
|
|
if (!success)
|
|
Bell(xw, XkbBI_MinorError, 0);
|
|
}
|
|
|
|
void
|
|
free_termcap(XtermWidget xw)
|
|
{
|
|
#if OPT_TCAP_FKEYS
|
|
TScreen *screen = TScreenOf(xw);
|
|
|
|
if (screen->tcap_fkeys != 0) {
|
|
Cardinal want = XtNumber(table);
|
|
Cardinal have;
|
|
|
|
for (have = 0; have < want; ++have) {
|
|
char *fkey = screen->tcap_fkeys[have];
|
|
if (fkey != 0 && fkey != NO_STRING) {
|
|
free(fkey);
|
|
}
|
|
}
|
|
free(screen->tcap_fkeys);
|
|
screen->tcap_fkeys = 0;
|
|
}
|
|
#endif
|
|
}
|