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xenocara/app/xterm/input.c

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/* $XTermId: input.c,v 1.363 2019/11/13 23:05:06 tom Exp $ */
/*
* Copyright 1999-2018,2019 by Thomas E. Dickey
*
* All Rights Reserved
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name(s) of the above copyright
* holders shall not be used in advertising or otherwise to promote the
* sale, use or other dealings in this Software without prior written
* authorization.
*
*
* Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
*
* All Rights Reserved
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted,
* provided that the above copyright notice appear in all copies and that
* both that copyright notice and this permission notice appear in
* supporting documentation, and that the name of Digital Equipment
* Corporation not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior permission.
*
*
* DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
* ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
* DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
* ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
* WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
* ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
* SOFTWARE.
*/
/* input.c */
#include <xterm.h>
#include <X11/keysym.h>
#ifdef VMS
#include <X11/keysymdef.h>
#endif
#if HAVE_X11_DECKEYSYM_H
#include <X11/DECkeysym.h>
#endif
#if HAVE_X11_SUNKEYSYM_H
#include <X11/Sunkeysym.h>
#endif
#if HAVE_X11_XF86KEYSYM_H
#include <X11/XF86keysym.h>
#endif
#if !defined(HAVE_CONFIG_H) && defined(_X_DEPRECATED)
#define HAVE_XKBKEYCODETOKEYSYM 1
#endif
#ifdef HAVE_XKBKEYCODETOKEYSYM
#include <X11/XKBlib.h>
#endif
#include <X11/Xutil.h>
#include <stdio.h>
#include <ctype.h>
#include <xutf8.h>
#include <data.h>
#include <fontutils.h>
#include <xstrings.h>
#include <xtermcap.h>
/*
* Xutil.h has no macro to check for the complete set of function- and
* modifier-keys that might be returned. Fake it.
*/
#ifdef XK_ISO_Lock
#define IsPredefinedKey(n) ((n) >= XK_ISO_Lock && (n) <= XK_Delete)
#else
#define IsPredefinedKey(n) ((n) >= XK_BackSpace && (n) <= XK_Delete)
#endif
#ifdef XK_ISO_Left_Tab
#define IsTabKey(n) ((n) == XK_Tab || (n) == XK_ISO_Left_Tab)
#else
#define IsTabKey(n) ((n) == XK_Tab)
#endif
#ifndef IsPrivateKeypadKey
#define IsPrivateKeypadKey(k) (0)
#endif
#define IsBackarrowToggle(keyboard, keysym, state) \
((((keyboard->flags & MODE_DECBKM) == 0) \
^ ((state & ControlMask) != 0)) \
&& (keysym == XK_BackSpace))
#define MAP(from, to) case from: result = to; break
#define Masked(value,mask) ((value) & (unsigned) (~(mask)))
#define KEYSYM_FMT "0x%04lX" /* simplify matching <X11/keysymdef.h> */
#define TEK4014_GIN(tw) (tw != 0 && TekScreenOf(tw)->TekGIN)
typedef struct {
KeySym keysym;
Bool is_fkey;
int nbytes;
#define STRBUFSIZE 500
char strbuf[STRBUFSIZE];
} KEY_DATA;
static
const char kypd_num[] = " XXXXXXXX\tXXX\rXXXxxxxXXXXXXXXXXXXXXXXXXXXX*+,-./0123456789XXX=";
/* 0123456789 abc def0123456789abcdef0123456789abcdef0123456789abcd */
static
const char kypd_apl[] = " ABCDEFGHIJKLMNOPQRSTUVWXYZ??????abcdefghijklmnopqrstuvwxyzXXX";
/* 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcd */
static
const char curfinal[] = "HDACB FE";
static int decfuncvalue(KEY_DATA *);
static void sunfuncvalue(ANSI *, KEY_DATA *);
static void hpfuncvalue(ANSI *, KEY_DATA *);
static void scofuncvalue(ANSI *, KEY_DATA *);
static void
AdjustAfterInput(XtermWidget xw)
{
TScreen *screen = TScreenOf(xw);
if (screen->scrollkey && screen->topline != 0)
WindowScroll(xw, 0, False);
if (screen->marginbell) {
int col = screen->max_col - screen->nmarginbell;
if (screen->bellArmed >= 0) {
if (screen->bellArmed == screen->cur_row) {
if (screen->cur_col >= col) {
Bell(xw, XkbBI_MarginBell, 0);
screen->bellArmed = -1;
}
} else {
screen->bellArmed =
screen->cur_col < col ? screen->cur_row : -1;
}
} else if (screen->cur_col < col)
screen->bellArmed = screen->cur_row;
}
}
/*
* Return true if the key is on the editing keypad. This overlaps with
* IsCursorKey() and IsKeypadKey() and must be tested before those macros to
* distinguish it from them.
*
* VT220 emulation uses the VT100 numeric keypad as well as a 6-key
* editing keypad. Here's a picture of the VT220 editing keypad:
* +--------+--------+--------+
* | Find | Insert | Remove |
* +--------+--------+--------+
* | Select | Prev | Next |
* +--------+--------+--------+
*
* and the similar Sun and PC keypads:
* +--------+--------+--------+
* | Insert | Home | PageUp |
* +--------+--------+--------+
* | Delete | End | PageDn |
* +--------+--------+--------+
*/
static Bool
IsEditKeypad(XtermWidget xw, KeySym keysym)
{
Bool result;
switch (keysym) {
case XK_Delete:
result = !xtermDeleteIsDEL(xw);
break;
case XK_Prior:
case XK_Next:
case XK_Insert:
case XK_Find:
case XK_Select:
#ifdef DXK_Remove
case DXK_Remove:
#endif
result = True;
break;
default:
result = False;
break;
}
return result;
}
/*
* Editing-keypad, plus other editing keys which are not included in the
* other macros.
*/
static Bool
IsEditFunctionKey(XtermWidget xw, KeySym keysym)
{
Bool result;
switch (keysym) {
#ifdef XK_KP_Delete
case XK_KP_Delete: /* editing key on numeric keypad */
case XK_KP_Insert: /* editing key on numeric keypad */
#endif
#ifdef XK_ISO_Left_Tab
case XK_ISO_Left_Tab:
#endif
result = True;
break;
default:
result = IsEditKeypad(xw, keysym);
break;
}
return result;
}
#if OPT_MOD_FKEYS
#define IS_CTRL(n) ((n) < ANSI_SPA || ((n) >= 0x7f && (n) <= 0x9f))
/*
* Return true if the keysym corresponds to one of the control characters,
* or one of the common ASCII characters that is combined with control to
* make a control character.
*/
static Bool
IsControlInput(KEY_DATA * kd)
{
return ((kd->keysym) >= 0x40 && (kd->keysym) <= 0x7f);
}
static Bool
IsControlOutput(KEY_DATA * kd)
{
return IS_CTRL(kd->keysym);
}
/*
* X "normally" has some built-in translations, which the user may want to
* suppress when processing the modifyOtherKeys resource. In particular, the
* control modifier applied to some of the keyboard digits gives results for
* control characters.
*
* control 2 0 NUL
* control SPC 0 NUL
* control @ 0 NUL
* control ` 0 NUL
* control 3 0x1b ESC
* control 4 0x1c FS
* control \ 0x1c FS
* control 5 0x1d GS
* control 6 0x1e RS
* control ^ 0x1e RS
* control ~ 0x1e RS
* control 7 0x1f US
* control / 0x1f US
* control _ 0x1f US
* control 8 0x7f DEL
*
* It is possible that some other keyboards do not work for these combinations,
* but they do work with modifyOtherKeys=2 for the US keyboard:
*
* control ` 0 NUL
* control [ 0x1b ESC
* control \ 0x1c FS
* control ] 0x1d GS
* control ? 0x7f DEL
*/
static Bool
IsControlAlias(KEY_DATA * kd)
{
Bool result = False;
if (kd->nbytes == 1) {
result = IS_CTRL(CharOf(kd->strbuf[0]));
}
return result;
}
/*
* If we are in the non-VT220/VT52 keyboard state, allow modifiers to add a
* parameter to the function-key control sequences.
*
* Note that we generally cannot capture the Shift-modifier for the numeric
* keypad since this is commonly used to act as a type of NumLock, e.g.,
* making the keypad send "7" (actually XK_KP_7) where the unshifted code
* would be Home (XK_KP_Home). The other modifiers work, subject to the
* usual window-manager assignments.
*/
#if OPT_SUNPC_KBD
#define LegacyAllows(code) (!is_legacy || (code & xw->keyboard.modify_now.allow_keys) != 0)
#else
#define LegacyAllows(code) True
#endif
static Bool
allowModifierParm(XtermWidget xw, KEY_DATA * kd)
{
TKeyboard *keyboard = &(xw->keyboard);
int is_legacy = (keyboard->type == keyboardIsLegacy);
Bool result = False;
#if OPT_SUNPC_KBD
if (keyboard->type == keyboardIsVT220)
is_legacy = True;
#endif
#if OPT_VT52_MODE
if (TScreenOf(xw)->vtXX_level != 0)
#endif
{
if (IsCursorKey(kd->keysym) || IsEditFunctionKey(xw, kd->keysym)) {
result = LegacyAllows(2);
} else if (IsKeypadKey(kd->keysym)) {
result = LegacyAllows(1);
} else if (IsFunctionKey(kd->keysym)) {
result = LegacyAllows(4);
} else if (IsMiscFunctionKey(kd->keysym)) {
result = LegacyAllows(8);
}
}
if (xw->keyboard.modify_now.other_keys != 0) {
result = True;
}
return result;
}
/*
* Modifier codes:
* None 1
* Shift 2 = 1(None)+1(Shift)
* Alt 3 = 1(None)+2(Alt)
* Alt+Shift 4 = 1(None)+1(Shift)+2(Alt)
* Ctrl 5 = 1(None)+4(Ctrl)
* Ctrl+Shift 6 = 1(None)+1(Shift)+4(Ctrl)
* Ctrl+Alt 7 = 1(None)+2(Alt)+4(Ctrl)
* Ctrl+Alt+Shift 8 = 1(None)+1(Shift)+2(Alt)+4(Ctrl)
* Meta 9 = 1(None)+8(Meta)
* Meta+Shift 10 = 1(None)+8(Meta)+1(Shift)
* Meta+Alt 11 = 1(None)+8(Meta)+2(Alt)
* Meta+Alt+Shift 12 = 1(None)+8(Meta)+1(Shift)+2(Alt)
* Meta+Ctrl 13 = 1(None)+8(Meta)+4(Ctrl)
* Meta+Ctrl+Shift 14 = 1(None)+8(Meta)+1(Shift)+4(Ctrl)
* Meta+Ctrl+Alt 15 = 1(None)+8(Meta)+2(Alt)+4(Ctrl)
* Meta+Ctrl+Alt+Shift 16 = 1(None)+8(Meta)+1(Shift)+2(Alt)+4(Ctrl)
*/
unsigned
xtermParamToState(XtermWidget xw, unsigned param)
{
unsigned result = 0;
#if OPT_NUM_LOCK
if (param > MOD_NONE) {
if ((param - MOD_NONE) & MOD_SHIFT)
UIntSet(result, ShiftMask);
if ((param - MOD_NONE) & MOD_CTRL)
UIntSet(result, ControlMask);
if ((param - MOD_NONE) & MOD_ALT)
UIntSet(result, xw->work.alt_mods);
if ((param - MOD_NONE) & MOD_META)
UIntSet(result, xw->work.meta_mods);
}
#else
(void) xw;
(void) param;
#endif
TRACE(("xtermParamToState(%d) %s%s%s%s -> %#x\n", param,
MODIFIER_NAME(param, MOD_SHIFT),
MODIFIER_NAME(param, MOD_ALT),
MODIFIER_NAME(param, MOD_CTRL),
MODIFIER_NAME(param, MOD_META),
result));
return result;
}
unsigned
xtermStateToParam(XtermWidget xw, unsigned state)
{
unsigned modify_parm = MOD_NONE;
TRACE(("xtermStateToParam %#x\n", state));
#if OPT_NUM_LOCK
if (state & ShiftMask) {
modify_parm += MOD_SHIFT;
UIntClr(state, ShiftMask);
}
if (state & ControlMask) {
modify_parm += MOD_CTRL;
UIntClr(state, ControlMask);
}
if ((state & xw->work.alt_mods) != 0) {
modify_parm += MOD_ALT;
UIntClr(state, xw->work.alt_mods);
}
if ((state & xw->work.meta_mods) != 0) {
modify_parm += MOD_META;
/* UIntClr(state, xw->work.meta_mods); */
}
if (modify_parm == MOD_NONE)
modify_parm = 0;
#else
(void) xw;
(void) state;
#endif
TRACE(("...xtermStateToParam %d%s%s%s%s\n", modify_parm,
MODIFIER_NAME(modify_parm, MOD_SHIFT),
MODIFIER_NAME(modify_parm, MOD_ALT),
MODIFIER_NAME(modify_parm, MOD_CTRL),
MODIFIER_NAME(modify_parm, MOD_META)));
return modify_parm;
}
#define computeMaskedModifier(xw, state, mask) \
xtermStateToParam(xw, Masked(state, mask))
#if OPT_NUM_LOCK
static unsigned
filterAltMeta(unsigned result, unsigned mask, Bool enable, KEY_DATA * kd)
{
if ((result & mask) != 0) {
/*
* metaSendsEscape makes the meta key independent of
* modifyOtherKeys.
*/
if (enable) {
result &= ~mask;
}
/*
* A bare meta-modifier is independent of modifyOtherKeys. If it
* is combined with other modifiers, make it depend.
*/
if ((result & ~(mask)) == 0) {
result &= ~mask;
}
/*
* Check for special cases of control+meta which are used by some
* applications, e.g., emacs.
*/
if ((IsControlInput(kd)
|| IsControlOutput(kd))
&& (result & ControlMask) != 0) {
result &= ~(mask | ControlMask);
}
if (kd->keysym == XK_Return || kd->keysym == XK_Tab) {
result &= ~(mask | ControlMask);
}
}
return result;
}
#endif /* OPT_NUM_LOCK */
/*
* Single characters (not function-keys) are allowed fewer modifiers when
* interpreting modifyOtherKeys due to pre-existing associations with some
* modifiers.
*/
static unsigned
allowedCharModifiers(XtermWidget xw, unsigned state, KEY_DATA * kd)
{
#if OPT_NUM_LOCK
unsigned a_or_m = (state & (xw->work.meta_mods | xw->work.alt_mods));
#else
unsigned a_or_m = 0;
#endif
/*
* Start by limiting the result to the modifiers we might want to use.
*/
unsigned result = (state & (ControlMask
| ShiftMask
| a_or_m));
/*
* If modifyOtherKeys is off or medium (0 or 1), moderate its effects by
* excluding the common cases for modifiers.
*/
if (xw->keyboard.modify_now.other_keys <= 1) {
if (IsControlInput(kd)
&& Masked(result, ControlMask) == 0) {
/* These keys are already associated with the control-key */
if (xw->keyboard.modify_now.other_keys == 0) {
UIntClr(result, ControlMask);
}
} else if (kd->keysym == XK_Tab || kd->keysym == XK_Return) {
/* EMPTY */ ;
} else if (IsControlAlias(kd)) {
/* Things like "^_" work here... */
if (Masked(result, (ControlMask | ShiftMask)) == 0) {
result = 0;
}
} else if (!IsControlOutput(kd) && !IsPredefinedKey(kd->keysym)) {
/* Printable keys are already associated with the shift-key */
if (!(result & ControlMask)) {
UIntClr(result, ShiftMask);
}
}
#if OPT_NUM_LOCK
result = filterAltMeta(result,
xw->work.meta_mods,
TScreenOf(xw)->meta_sends_esc, kd);
if (TScreenOf(xw)->alt_is_not_meta) {
result = filterAltMeta(result,
xw->work.alt_mods,
TScreenOf(xw)->alt_sends_esc, kd);
}
#endif
}
TRACE(("...allowedCharModifiers(state=%u" FMT_MODIFIER_NAMES
", ch=" KEYSYM_FMT ") ->"
"%u" FMT_MODIFIER_NAMES "\n",
state, ARG_MODIFIER_NAMES(state), kd->keysym,
result, ARG_MODIFIER_NAMES(result)));
return result;
}
/*
* Decide if we should generate a special escape sequence for "other" keys
* than cursor-, function-keys, etc., as per the modifyOtherKeys resource.
*/
static Bool
ModifyOtherKeys(XtermWidget xw,
unsigned state,
KEY_DATA * kd,
unsigned modify_parm)
{
TKeyboard *keyboard = &(xw->keyboard);
Bool result = False;
/*
* Exclude the keys already covered by a modifier.
*/
if (kd->is_fkey
|| IsEditFunctionKey(xw, kd->keysym)
|| IsKeypadKey(kd->keysym)
|| IsCursorKey(kd->keysym)
|| IsPFKey(kd->keysym)
|| IsMiscFunctionKey(kd->keysym)
|| IsPrivateKeypadKey(kd->keysym)) {
result = False;
} else if (modify_parm != 0) {
if (IsBackarrowToggle(keyboard, kd->keysym, state)) {
kd->keysym = XK_Delete;
UIntClr(state, ControlMask);
}
if (!IsPredefinedKey(kd->keysym)) {
state = allowedCharModifiers(xw, state, kd);
}
if (state != 0) {
switch (keyboard->modify_now.other_keys) {
default:
break;
case 1:
switch (kd->keysym) {
case XK_BackSpace:
case XK_Delete:
result = False;
break;
#ifdef XK_ISO_Left_Tab
case XK_ISO_Left_Tab:
if (computeMaskedModifier(xw, state, ShiftMask))
result = True;
break;
#endif
case XK_Return:
case XK_Tab:
result = (modify_parm != 0);
break;
default:
if (IsControlInput(kd)) {
if (state == ControlMask || state == ShiftMask) {
result = False;
} else {
result = (modify_parm != 0);
}
} else if (IsControlAlias(kd)) {
if (state == ShiftMask)
result = False;
else if (computeMaskedModifier(xw, state, ControlMask)) {
result = True;
}
} else {
result = True;
}
break;
}
break;
case 2:
switch (kd->keysym) {
case XK_BackSpace:
/* strip ControlMask as per IsBackarrowToggle() */
if (computeMaskedModifier(xw, state, ControlMask))
result = True;
break;
case XK_Delete:
result = (xtermStateToParam(xw, state) != 0);
break;
#ifdef XK_ISO_Left_Tab
case XK_ISO_Left_Tab:
if (computeMaskedModifier(xw, state, ShiftMask))
result = True;
break;
#endif
case XK_Return:
case XK_Tab:
result = (modify_parm != 0);
break;
default:
if (IsControlInput(kd)) {
result = True;
} else if (state == ShiftMask) {
result = (kd->keysym == ' ' || kd->keysym == XK_Return);
} else if (computeMaskedModifier(xw, state, ShiftMask)) {
result = True;
}
break;
}
break;
}
}
}
TRACE(("...ModifyOtherKeys(%d,%d) %s\n",
keyboard->modify_now.other_keys,
modify_parm,
BtoS(result)));
return result;
}
#define APPEND_PARM(number) \
reply->a_param[reply->a_nparam] = (ParmType) number; \
reply->a_nparam++
/*
* Function-key code 27 happens to not be used in the vt220-style encoding.
* xterm uses this to represent modified non-function-keys such as control/+ in
* the Sun/PC keyboard layout. See the modifyOtherKeys resource in the manpage
* for more information.
*/
static Bool
modifyOtherKey(ANSI *reply, int input_char, unsigned modify_parm, int format_keys)
{
Bool result = False;
if (input_char >= 0) {
reply->a_type = ANSI_CSI;
if (format_keys) {
APPEND_PARM(input_char);
APPEND_PARM(modify_parm);
reply->a_final = 'u';
} else {
APPEND_PARM(27);
APPEND_PARM(modify_parm);
APPEND_PARM(input_char);
reply->a_final = '~';
}
result = True;
}
return result;
}
static void
modifyCursorKey(ANSI *reply, int modify, unsigned *modify_parm)
{
if (*modify_parm != 0) {
if (modify < 0) {
*modify_parm = 0;
}
if (modify > 0) {
reply->a_type = ANSI_CSI; /* SS3 should not have params */
}
if (modify > 1 && reply->a_nparam == 0) {
APPEND_PARM(1); /* force modifier to 2nd param */
}
if (modify > 2) {
reply->a_pintro = '>'; /* mark this as "private" */
}
}
}
#else
#define modifyCursorKey(reply, modify, parm) /* nothing */
#endif /* OPT_MOD_FKEYS */
#if OPT_SUNPC_KBD
/*
* If we have told xterm that our keyboard is really a Sun/PC keyboard, this is
* enough to make a reasonable approximation to DEC vt220 numeric and editing
* keypads.
*/
static KeySym
TranslateFromSUNPC(KeySym keysym)
{
/* *INDENT-OFF* */
static struct {
KeySym before, after;
} table[] = {
#ifdef DXK_Remove
{ XK_Delete, DXK_Remove },
#endif
{ XK_Home, XK_Find },
{ XK_End, XK_Select },
#ifdef XK_KP_Home
{ XK_Delete, XK_KP_Decimal },
{ XK_KP_Delete, XK_KP_Decimal },
{ XK_KP_Insert, XK_KP_0 },
{ XK_KP_End, XK_KP_1 },
{ XK_KP_Down, XK_KP_2 },
{ XK_KP_Next, XK_KP_3 },
{ XK_KP_Left, XK_KP_4 },
{ XK_KP_Begin, XK_KP_5 },
{ XK_KP_Right, XK_KP_6 },
{ XK_KP_Home, XK_KP_7 },
{ XK_KP_Up, XK_KP_8 },
{ XK_KP_Prior, XK_KP_9 },
#endif
};
/* *INDENT-ON* */
unsigned n;
for (n = 0; n < sizeof(table) / sizeof(table[0]); n++) {
if (table[n].before == keysym) {
TRACE(("...Input keypad before was " KEYSYM_FMT "\n", keysym));
keysym = table[n].after;
TRACE(("...Input keypad changed to " KEYSYM_FMT "\n", keysym));
break;
}
}
return keysym;
}
#endif /* OPT_SUNPC_KBD */
#define VT52_KEYPAD \
if_OPT_VT52_MODE(screen,{ \
reply.a_type = ANSI_ESC; \
reply.a_pintro = '?'; \
})
#define VT52_CURSOR_KEYS \
if_OPT_VT52_MODE(screen,{ \
reply.a_type = ANSI_ESC; \
})
#undef APPEND_PARM
#define APPEND_PARM(number) \
reply.a_param[reply.a_nparam] = (ParmType) number, \
reply.a_nparam++
#if OPT_MOD_FKEYS
#define MODIFIER_PARM \
if (modify_parm != 0) APPEND_PARM(modify_parm)
#else
#define MODIFIER_PARM /*nothing */
#endif
/*
* Determine if we use the \E[3~ sequence for Delete, or the legacy ^?. We
* maintain the delete_is_del value as 3 states: unspecified(2), true and
* false. If unspecified, it is handled differently according to whether the
* legacy keyboard support is enabled, or if xterm emulates a VT220.
*
* Once the user (or application) has specified delete_is_del via resource
* setting, popup menu or escape sequence, it overrides the keyboard type
* rather than the reverse.
*/
Bool
xtermDeleteIsDEL(XtermWidget xw)
{
Bool result = True;
if (xw->keyboard.type == keyboardIsDefault
|| xw->keyboard.type == keyboardIsVT220)
result = (TScreenOf(xw)->delete_is_del == True);
if (xw->keyboard.type == keyboardIsLegacy)
result = (TScreenOf(xw)->delete_is_del != False);
TRACE(("xtermDeleteIsDEL(%d/%d) = %d\n",
xw->keyboard.type,
TScreenOf(xw)->delete_is_del,
result));
return result;
}
static Boolean
lookupKeyData(KEY_DATA * kd, XtermWidget xw, XKeyEvent *event)
{
TScreen *screen = TScreenOf(xw);
Boolean result = True;
#if OPT_INPUT_METHOD
#if OPT_MOD_FKEYS
TKeyboard *keyboard = &(xw->keyboard);
#endif
#endif
(void) screen;
TRACE(("%s %#x\n", visibleEventType(event->type), event->keycode));
kd->keysym = 0;
kd->is_fkey = False;
#if OPT_TCAP_QUERY
if (screen->tc_query_code >= 0) {
kd->keysym = (KeySym) screen->tc_query_code;
kd->is_fkey = screen->tc_query_fkey;
if (kd->keysym != XK_BackSpace) {
kd->nbytes = 0;
kd->strbuf[0] = 0;
} else {
kd->nbytes = 1;
kd->strbuf[0] = 8;
}
} else
#endif
{
#if OPT_INPUT_METHOD
TInput *input = lookupTInput(xw, (Widget) xw);
if (input && input->xic) {
Status status_return;
#if OPT_WIDE_CHARS
if (screen->utf8_mode) {
kd->nbytes = Xutf8LookupString(input->xic, event,
kd->strbuf, (int) sizeof(kd->strbuf),
&(kd->keysym), &status_return);
} else
#endif
{
kd->nbytes = XmbLookupString(input->xic, event,
kd->strbuf, (int) sizeof(kd->strbuf),
&(kd->keysym), &status_return);
}
#if OPT_MOD_FKEYS
/*
* Fill-in some code useful with IsControlAlias():
*/
if (status_return == XLookupBoth
&& kd->nbytes <= 1
&& !IsPredefinedKey(kd->keysym)
&& (keyboard->modify_now.other_keys > 1)
&& !IsControlInput(kd)) {
kd->nbytes = 1;
kd->strbuf[0] = (char) kd->keysym;
}
#endif /* OPT_MOD_FKEYS */
} else
#endif /* OPT_INPUT_METHOD */
{
static XComposeStatus compose_status =
{NULL, 0};
kd->nbytes = XLookupString(event,
kd->strbuf, (int) sizeof(kd->strbuf),
&(kd->keysym), &compose_status);
}
kd->is_fkey = IsFunctionKey(kd->keysym);
}
return result;
}
void
Input(XtermWidget xw,
XKeyEvent *event,
Bool eightbit)
{
Char *string;
TKeyboard *keyboard = &(xw->keyboard);
TScreen *screen = TScreenOf(xw);
int j;
int key = False;
ANSI reply;
int dec_code;
unsigned modify_parm = 0;
int keypad_mode = ((keyboard->flags & MODE_DECKPAM) != 0);
unsigned evt_state = event->state;
unsigned mod_state;
KEY_DATA kd;
/* Ignore characters typed at the keyboard */
if (keyboard->flags & MODE_KAM)
return;
lookupKeyData(&kd, xw, event);
memset(&reply, 0, sizeof(reply));
TRACE(("Input(%d,%d) keysym "
KEYSYM_FMT
", %d:'%s'%s" FMT_MODIFIER_NAMES "%s%s%s%s%s%s\n",
screen->cur_row, screen->cur_col,
kd.keysym,
kd.nbytes,
visibleChars((Char *) kd.strbuf,
((kd.nbytes > 0)
? (unsigned) kd.nbytes
: 0)),
ARG_MODIFIER_NAMES(evt_state),
eightbit ? " 8bit" : " 7bit",
IsKeypadKey(kd.keysym) ? " KeypadKey" : "",
IsCursorKey(kd.keysym) ? " CursorKey" : "",
IsPFKey(kd.keysym) ? " PFKey" : "",
kd.is_fkey ? " FKey" : "",
IsMiscFunctionKey(kd.keysym) ? " MiscFKey" : "",
IsEditFunctionKey(xw, kd.keysym) ? " EditFkey" : ""));
#if OPT_SUNPC_KBD
/*
* DEC keyboards don't have keypad(+), but do have keypad(,) instead.
* Other (Sun, PC) keyboards commonly have keypad(+), but no keypad(,)
* - it's a pain for users to work around.
*/
if (keyboard->type == keyboardIsVT220
&& (evt_state & ShiftMask) == 0) {
if (kd.keysym == XK_KP_Add) {
kd.keysym = XK_KP_Separator;
UIntClr(evt_state, ShiftMask);
TRACE(("...Input keypad(+), change keysym to "
KEYSYM_FMT
"\n",
kd.keysym));
}
if ((evt_state & ControlMask) != 0
&& kd.keysym == XK_KP_Separator) {
kd.keysym = XK_KP_Subtract;
UIntClr(evt_state, ControlMask);
TRACE(("...Input control/keypad(,), change keysym to "
KEYSYM_FMT
"\n",
kd.keysym));
}
}
#endif
/*
* The keyboard tables may give us different keypad codes according to
* whether NumLock is pressed. Use this check to simplify the process
* of determining whether we generate an escape sequence for a keypad
* key, or force it to the value kypd_num[]. There is no fixed
* modifier for this feature, so we assume that it is the one assigned
* to the NumLock key.
*
* This check used to try to return the contents of strbuf, but that
* does not work properly when a control modifier is given (trash is
* returned in the buffer in some cases -- perhaps an X bug).
*/
#if OPT_NUM_LOCK
if (kd.nbytes == 1
&& IsKeypadKey(kd.keysym)
&& xw->misc.real_NumLock
&& (xw->work.num_lock & evt_state) != 0) {
keypad_mode = 0;
TRACE(("...Input num_lock, force keypad_mode off\n"));
}
#endif
#if OPT_MOD_FKEYS
if (evt_state != 0
&& allowModifierParm(xw, &kd)) {
modify_parm = xtermStateToParam(xw, evt_state);
}
/*
* Shift-tab is often mapped to XK_ISO_Left_Tab which is classified as
* IsEditFunctionKey(), and the conversion does not produce any bytes.
* Check for this special case so we have data when handling the
* modifyOtherKeys resource.
*/
if (keyboard->modify_now.other_keys > 1) {
if (IsTabKey(kd.keysym) && kd.nbytes == 0) {
kd.nbytes = 1;
kd.strbuf[0] = '\t';
}
}
#ifdef XK_ISO_Left_Tab
else if (IsTabKey(kd.keysym)
&& kd.nbytes <= 1
&& modify_parm == (MOD_NONE + MOD_SHIFT)) {
kd.keysym = XK_ISO_Left_Tab;
}
#endif
#endif /* OPT_MOD_FKEYS */
/* VT300 & up: backarrow toggle */
if ((kd.nbytes == 1)
&& IsBackarrowToggle(keyboard, kd.keysym, evt_state)) {
kd.strbuf[0] = ANSI_DEL;
TRACE(("...Input backarrow changed to %d\n", kd.strbuf[0]));
}
#if OPT_SUNPC_KBD
/* make an DEC editing-keypad from a Sun or PC editing-keypad */
if (keyboard->type == keyboardIsVT220
&& (kd.keysym != XK_Delete || !xtermDeleteIsDEL(xw)))
kd.keysym = TranslateFromSUNPC(kd.keysym);
else
#endif
{
#ifdef XK_KP_Home
if (kd.keysym >= XK_KP_Home && kd.keysym <= XK_KP_Begin) {
TRACE(("...Input keypad before was " KEYSYM_FMT "\n", kd.keysym));
kd.keysym += (KeySym) (XK_Home - XK_KP_Home);
TRACE(("...Input keypad changed to " KEYSYM_FMT "\n", kd.keysym));
}
#endif
}
/*
* Map the Sun afterthought-keys in as F36 and F37.
*/
#ifdef SunXK_F36
if (!kd.is_fkey) {
if (kd.keysym == SunXK_F36) {
kd.keysym = XK_Fn(36);
kd.is_fkey = True;
}
if (kd.keysym == SunXK_F37) {
kd.keysym = XK_Fn(37);
kd.is_fkey = True;
}
}
#endif
/*
* Use the control- and shift-modifiers to obtain more function keys than
* the keyboard provides. We can do this if there is no conflicting use of
* those modifiers:
*
* a) for VT220 keyboard, we use only the control-modifier. The keyboard
* uses shift-modifier for UDK's.
*
* b) for non-VT220 keyboards, we only have to check if the
* modifyFunctionKeys resource is inactive.
*
* Thereafter, we note when we have a function-key and keep that
* distinction when testing for "function-key" values.
*/
if ((evt_state & (ControlMask | ShiftMask)) != 0
&& kd.is_fkey) {
/* VT220 keyboard uses shift for UDK */
if (keyboard->type == keyboardIsVT220
|| keyboard->type == keyboardIsLegacy) {
TRACE(("...map XK_F%ld", kd.keysym - XK_Fn(1) + 1));
if (evt_state & ControlMask) {
kd.keysym += (KeySym) xw->misc.ctrl_fkeys;
UIntClr(evt_state, ControlMask);
}
TRACE((" to XK_F%ld\n", kd.keysym - XK_Fn(1) + 1));
}
#if OPT_MOD_FKEYS
else if (keyboard->modify_now.function_keys < 0) {
TRACE(("...map XK_F%ld", kd.keysym - XK_Fn(1) + 1));
if (evt_state & ShiftMask) {
kd.keysym += (KeySym) (xw->misc.ctrl_fkeys * 1);
UIntClr(evt_state, ShiftMask);
}
if (evt_state & ControlMask) {
kd.keysym += (KeySym) (xw->misc.ctrl_fkeys * 2);
UIntClr(evt_state, ControlMask);
}
TRACE((" to XK_F%ld\n", kd.keysym - XK_Fn(1) + 1));
}
/*
* Reevaluate the modifier parameter, stripping off the modifiers
* that we just used.
*/
if (modify_parm) {
modify_parm = xtermStateToParam(xw, evt_state);
}
#endif /* OPT_MOD_FKEYS */
}
/*
* Test for one of the keyboard variants.
*/
switch (keyboard->type) {
case keyboardIsHP:
hpfuncvalue(&reply, &kd);
break;
case keyboardIsSCO:
scofuncvalue(&reply, &kd);
break;
case keyboardIsSun:
sunfuncvalue(&reply, &kd);
break;
case keyboardIsTermcap:
#if OPT_TCAP_FKEYS
if (xtermcapString(xw, (int) kd.keysym, evt_state))
return;
#endif
break;
case keyboardIsDefault:
case keyboardIsLegacy:
case keyboardIsVT220:
break;
}
if (reply.a_final) {
/*
* The key symbol matches one of the variants. Most of those are
* function-keys, though some cursor- and editing-keys are mixed in.
*/
modifyCursorKey(&reply,
((kd.is_fkey
|| IsMiscFunctionKey(kd.keysym)
|| IsEditFunctionKey(xw, kd.keysym))
? keyboard->modify_now.function_keys
: keyboard->modify_now.cursor_keys),
&modify_parm);
MODIFIER_PARM;
unparseseq(xw, &reply);
} else if (((kd.is_fkey
|| IsMiscFunctionKey(kd.keysym)
|| IsEditFunctionKey(xw, kd.keysym))
#if OPT_MOD_FKEYS
&& !ModifyOtherKeys(xw, evt_state, &kd, modify_parm)
#endif
) || (kd.keysym == XK_Delete
&& ((modify_parm != 0)
|| !xtermDeleteIsDEL(xw)))) {
dec_code = decfuncvalue(&kd);
if ((evt_state & ShiftMask)
#if OPT_SUNPC_KBD
&& keyboard->type == keyboardIsVT220
#endif
&& ((string = (Char *) udk_lookup(xw, dec_code, &kd.nbytes)) != 0)) {
/* UIntClr(evt_state, ShiftMask); */
while (kd.nbytes-- > 0)
unparseputc(xw, CharOf(*string++));
}
/*
* Interpret F1-F4 as PF1-PF4 for VT52, VT100
*/
else if (keyboard->type != keyboardIsLegacy
&& (dec_code >= 11 && dec_code <= 14)) {
reply.a_type = ANSI_SS3;
VT52_CURSOR_KEYS;
reply.a_final = (Char) A2E(dec_code - 11 + E2A('P'));
modifyCursorKey(&reply,
keyboard->modify_now.function_keys,
&modify_parm);
MODIFIER_PARM;
unparseseq(xw, &reply);
} else {
reply.a_type = ANSI_CSI;
reply.a_final = 0;
#ifdef XK_ISO_Left_Tab
if (kd.keysym == XK_ISO_Left_Tab) {
reply.a_nparam = 0;
reply.a_final = 'Z';
#if OPT_MOD_FKEYS
if (keyboard->modify_now.other_keys > 1
&& computeMaskedModifier(xw, evt_state, ShiftMask))
modifyOtherKey(&reply, '\t', modify_parm, keyboard->format_keys);
#endif
} else
#endif /* XK_ISO_Left_Tab */
{
reply.a_nparam = 1;
#if OPT_MOD_FKEYS
if (kd.is_fkey) {
modifyCursorKey(&reply,
keyboard->modify_now.function_keys,
&modify_parm);
}
MODIFIER_PARM;
#endif
reply.a_param[0] = (ParmType) dec_code;
reply.a_final = '~';
}
if (reply.a_final != 0
&& (reply.a_nparam == 0 || reply.a_param[0] >= 0))
unparseseq(xw, &reply);
}
key = True;
} else if (IsPFKey(kd.keysym)) {
reply.a_type = ANSI_SS3;
reply.a_final = (Char) ((kd.keysym - XK_KP_F1) + 'P');
VT52_CURSOR_KEYS;
MODIFIER_PARM;
unparseseq(xw, &reply);
key = True;
} else if (IsKeypadKey(kd.keysym)) {
if (keypad_mode) {
reply.a_type = ANSI_SS3;
reply.a_final = (Char) (kypd_apl[kd.keysym - XK_KP_Space]);
VT52_KEYPAD;
MODIFIER_PARM;
unparseseq(xw, &reply);
} else {
unparseputc(xw, kypd_num[kd.keysym - XK_KP_Space]);
}
key = True;
} else if (IsCursorKey(kd.keysym)) {
if (keyboard->flags & MODE_DECCKM) {
reply.a_type = ANSI_SS3;
} else {
reply.a_type = ANSI_CSI;
}
modifyCursorKey(&reply, keyboard->modify_now.cursor_keys, &modify_parm);
reply.a_final = (Char) (curfinal[kd.keysym - XK_Home]);
VT52_CURSOR_KEYS;
MODIFIER_PARM;
unparseseq(xw, &reply);
key = True;
} else if (kd.nbytes > 0) {
#if OPT_TEK4014
if (TEK4014_GIN(tekWidget)) {
TekEnqMouse(tekWidget, kd.strbuf[0]);
TekGINoff(tekWidget);
kd.nbytes--;
for (j = 0; j < kd.nbytes; ++j) {
kd.strbuf[j] = kd.strbuf[j + 1];
}
}
#endif
#if OPT_MOD_FKEYS
if ((keyboard->modify_now.other_keys > 0)
&& ModifyOtherKeys(xw, evt_state, &kd, modify_parm)
&& (mod_state = allowedCharModifiers(xw, evt_state, &kd)) != 0) {
int input_char;
evt_state = mod_state;
modify_parm = xtermStateToParam(xw, evt_state);
/*
* We want to show a keycode that corresponds to the 8-bit value
* of the key. If the keysym is less than 256, that is good
* enough. Special keys such as Tab may result in a value that
* is usable as well. For the latter (special cases), try to use
* the result from the X library lookup.
*/
input_char = ((kd.keysym < 256)
? (int) kd.keysym
: ((kd.nbytes == 1)
? CharOf(kd.strbuf[0])
: -1));
TRACE(("...modifyOtherKeys %d;%d\n", modify_parm, input_char));
if (modifyOtherKey(&reply, input_char, modify_parm, keyboard->format_keys)) {
unparseseq(xw, &reply);
} else {
Bell(xw, XkbBI_MinorError, 0);
}
} else
#endif /* OPT_MOD_FKEYS */
{
int prefix = 0;
#if OPT_NUM_LOCK
/*
* Send ESC if we have a META modifier and metaSendsEcape is true.
* Like eightBitInput, except that it is not associated with
* terminal settings.
*/
if (kd.nbytes != 0) {
if (screen->meta_sends_esc
&& (evt_state & xw->work.meta_mods) != 0) {
TRACE(("...input-char is modified by META\n"));
UIntClr(evt_state, xw->work.meta_mods);
eightbit = False;
prefix = ANSI_ESC;
} else if (eightbit) {
/* it might be overridden, but this helps for debugging */
TRACE(("...input-char is shifted by META\n"));
}
if (screen->alt_is_not_meta
&& (evt_state & xw->work.alt_mods) != 0) {
UIntClr(evt_state, xw->work.alt_mods);
if (screen->alt_sends_esc) {
TRACE(("...input-char is modified by ALT\n"));
eightbit = False;
prefix = ANSI_ESC;
} else if (!eightbit) {
TRACE(("...input-char is shifted by ALT\n"));
eightbit = True;
}
}
}
#endif
/*
* If metaSendsEscape is false, fall through to this chunk, which
* implements the eightBitInput resource.
*
* It is normally executed when the user presses Meta plus a
* printable key, e.g., Meta+space. The presence of the Meta
* modifier is not guaranteed since what really happens is the
* "insert-eight-bit" or "insert-seven-bit" action, which we
* distinguish by the eightbit parameter to this function. So the
* eightBitInput resource really means that we use this shifting
* logic in the "insert-eight-bit" action.
*/
if (eightbit && (kd.nbytes == 1) && screen->input_eight_bits) {
IChar ch = CharOf(kd.strbuf[0]);
if ((ch < 128) && (screen->eight_bit_meta == ebTrue)) {
kd.strbuf[0] |= (char) 0x80;
TRACE(("...input shift from %d to %d (%#x to %#x)\n",
ch, CharOf(kd.strbuf[0]),
ch, CharOf(kd.strbuf[0])));
#if OPT_WIDE_CHARS
if (screen->utf8_mode) {
/*
* We could interpret the incoming code as "in the
* current locale", but it's simpler to treat it as
* a Unicode value to translate to UTF-8.
*/
ch = CharOf(kd.strbuf[0]);
kd.nbytes = 2;
kd.strbuf[0] = (char) (0xc0 | ((ch >> 6) & 0x3));
kd.strbuf[1] = (char) (0x80 | (ch & 0x3f));
TRACE(("...encoded %#x in UTF-8 as %#x,%#x\n",
ch, CharOf(kd.strbuf[0]), CharOf(kd.strbuf[1])));
}
#endif
}
eightbit = False;
}
#if OPT_WIDE_CHARS
if (kd.nbytes == 1) /* cannot do NRC on UTF-8, for instance */
#endif
{
/* VT220 & up: National Replacement Characters */
if ((xw->flags & NATIONAL) != 0) {
unsigned cmp = xtermCharSetIn(xw,
CharOf(kd.strbuf[0]),
(DECNRCM_codes)
screen->keyboard_dialect[0]);
TRACE(("...input NRC %d, %s %d\n",
CharOf(kd.strbuf[0]),
(CharOf(kd.strbuf[0]) == cmp)
? "unchanged"
: "changed to",
CharOf(cmp)));
kd.strbuf[0] = (char) cmp;
} else if (eightbit) {
prefix = ANSI_ESC;
} else if (kd.strbuf[0] == '?'
&& (evt_state & ControlMask) != 0) {
kd.strbuf[0] = ANSI_DEL;
}
}
if (prefix != 0)
unparseputc(xw, prefix); /* escape */
for (j = 0; j < kd.nbytes; ++j)
unparseputc(xw, CharOf(kd.strbuf[j]));
}
key = ((kd.keysym != ANSI_XOFF) && (kd.keysym != ANSI_XON));
}
unparse_end(xw);
if (key && !TEK4014_ACTIVE(xw))
AdjustAfterInput(xw);
xtermShowPointer(xw, False);
return;
}
void
StringInput(XtermWidget xw, const Char *string, size_t nbytes)
{
TRACE(("InputString (%s,%lu)\n",
visibleChars(string, (unsigned) nbytes),
(unsigned long) nbytes));
#if OPT_TEK4014
if (nbytes && TEK4014_GIN(tekWidget)) {
TekEnqMouse(tekWidget, *string++);
TekGINoff(tekWidget);
nbytes--;
}
#endif
while (nbytes-- != 0)
unparseputc(xw, *string++);
if (!TEK4014_ACTIVE(xw))
AdjustAfterInput(xw);
unparse_end(xw);
}
/* These definitions are DEC-style (e.g., vt320) */
static int
decfuncvalue(KEY_DATA * kd)
{
int result;
if (kd->is_fkey) {
switch (kd->keysym) {
MAP(XK_Fn(1), 11);
MAP(XK_Fn(2), 12);
MAP(XK_Fn(3), 13);
MAP(XK_Fn(4), 14);
MAP(XK_Fn(5), 15);
MAP(XK_Fn(6), 17);
MAP(XK_Fn(7), 18);
MAP(XK_Fn(8), 19);
MAP(XK_Fn(9), 20);
MAP(XK_Fn(10), 21);
MAP(XK_Fn(11), 23);
MAP(XK_Fn(12), 24);
MAP(XK_Fn(13), 25);
MAP(XK_Fn(14), 26);
MAP(XK_Fn(15), 28);
MAP(XK_Fn(16), 29);
MAP(XK_Fn(17), 31);
MAP(XK_Fn(18), 32);
MAP(XK_Fn(19), 33);
MAP(XK_Fn(20), 34);
default:
/* after F20 the codes are made up and do not correspond to any
* real terminal. So they are simply numbered sequentially.
*/
result = 42 + (int) (kd->keysym - XK_Fn(21));
break;
}
} else {
switch (kd->keysym) {
MAP(XK_Find, 1);
MAP(XK_Insert, 2);
MAP(XK_Delete, 3);
#ifdef XK_KP_Insert
MAP(XK_KP_Insert, 2);
MAP(XK_KP_Delete, 3);
#endif
#ifdef DXK_Remove
MAP(DXK_Remove, 3);
#endif
MAP(XK_Select, 4);
MAP(XK_Prior, 5);
MAP(XK_Next, 6);
#ifdef XK_ISO_Left_Tab
MAP(XK_ISO_Left_Tab, 'Z');
#endif
MAP(XK_Help, 28);
MAP(XK_Menu, 29);
default:
result = -1;
break;
}
}
return result;
}
static void
hpfuncvalue(ANSI *reply, KEY_DATA * kd)
{
#if OPT_HP_FUNC_KEYS
int result;
if (kd->is_fkey) {
switch (kd->keysym) {
MAP(XK_Fn(1), 'p');
MAP(XK_Fn(2), 'q');
MAP(XK_Fn(3), 'r');
MAP(XK_Fn(4), 's');
MAP(XK_Fn(5), 't');
MAP(XK_Fn(6), 'u');
MAP(XK_Fn(7), 'v');
MAP(XK_Fn(8), 'w');
default:
result = -1;
break;
}
} else {
switch (kd->keysym) {
MAP(XK_Up, 'A');
MAP(XK_Down, 'B');
MAP(XK_Right, 'C');
MAP(XK_Left, 'D');
MAP(XK_End, 'F');
MAP(XK_Clear, 'J');
MAP(XK_Delete, 'P');
MAP(XK_Insert, 'Q');
MAP(XK_Next, 'S');
MAP(XK_Prior, 'T');
MAP(XK_Home, 'h');
#ifdef XK_KP_Insert
MAP(XK_KP_Delete, 'P');
MAP(XK_KP_Insert, 'Q');
#endif
#ifdef DXK_Remove
MAP(DXK_Remove, 'P');
#endif
MAP(XK_Select, 'F');
MAP(XK_Find, 'h');
default:
result = -1;
break;
}
}
if (result > 0) {
reply->a_type = ANSI_ESC;
reply->a_final = (Char) result;
}
#else
(void) reply;
(void) kd;
#endif /* OPT_HP_FUNC_KEYS */
}
static void
scofuncvalue(ANSI *reply, KEY_DATA * kd)
{
#if OPT_SCO_FUNC_KEYS
int result;
if (kd->is_fkey) {
switch (kd->keysym) {
MAP(XK_Fn(1), 'M');
MAP(XK_Fn(2), 'N');
MAP(XK_Fn(3), 'O');
MAP(XK_Fn(4), 'P');
MAP(XK_Fn(5), 'Q');
MAP(XK_Fn(6), 'R');
MAP(XK_Fn(7), 'S');
MAP(XK_Fn(8), 'T');
MAP(XK_Fn(9), 'U');
MAP(XK_Fn(10), 'V');
MAP(XK_Fn(11), 'W');
MAP(XK_Fn(12), 'X');
MAP(XK_Fn(13), 'Y');
MAP(XK_Fn(14), 'Z');
MAP(XK_Fn(15), 'a');
MAP(XK_Fn(16), 'b');
MAP(XK_Fn(17), 'c');
MAP(XK_Fn(18), 'd');
MAP(XK_Fn(19), 'e');
MAP(XK_Fn(20), 'f');
MAP(XK_Fn(21), 'g');
MAP(XK_Fn(22), 'h');
MAP(XK_Fn(23), 'i');
MAP(XK_Fn(24), 'j');
MAP(XK_Fn(25), 'k');
MAP(XK_Fn(26), 'l');
MAP(XK_Fn(27), 'm');
MAP(XK_Fn(28), 'n');
MAP(XK_Fn(29), 'o');
MAP(XK_Fn(30), 'p');
MAP(XK_Fn(31), 'q');
MAP(XK_Fn(32), 'r');
MAP(XK_Fn(33), 's');
MAP(XK_Fn(34), 't');
MAP(XK_Fn(35), 'u');
MAP(XK_Fn(36), 'v');
MAP(XK_Fn(37), 'w');
MAP(XK_Fn(38), 'x');
MAP(XK_Fn(39), 'y');
MAP(XK_Fn(40), 'z');
MAP(XK_Fn(41), '@');
MAP(XK_Fn(42), '[');
MAP(XK_Fn(43), '\\');
MAP(XK_Fn(44), ']');
MAP(XK_Fn(45), '^');
MAP(XK_Fn(46), '_');
MAP(XK_Fn(47), '`');
MAP(XK_Fn(48), L_CURL);
default:
result = -1;
break;
}
} else {
switch (kd->keysym) {
MAP(XK_Up, 'A');
MAP(XK_Down, 'B');
MAP(XK_Right, 'C');
MAP(XK_Left, 'D');
MAP(XK_Begin, 'E');
MAP(XK_End, 'F');
MAP(XK_Insert, 'L');
MAP(XK_Next, 'G');
MAP(XK_Prior, 'I');
MAP(XK_Home, 'H');
#ifdef XK_KP_Insert
MAP(XK_KP_Insert, 'L');
#endif
default:
result = -1;
break;
}
}
if (result > 0) {
reply->a_type = ANSI_CSI;
reply->a_final = (Char) result;
}
#else
(void) reply;
(void) kd;
#endif /* OPT_SCO_FUNC_KEYS */
}
static void
sunfuncvalue(ANSI *reply, KEY_DATA * kd)
{
#if OPT_SUN_FUNC_KEYS
ParmType result;
if (kd->is_fkey) {
switch (kd->keysym) {
/* kf1-kf20 are numbered sequentially */
MAP(XK_Fn(1), 224);
MAP(XK_Fn(2), 225);
MAP(XK_Fn(3), 226);
MAP(XK_Fn(4), 227);
MAP(XK_Fn(5), 228);
MAP(XK_Fn(6), 229);
MAP(XK_Fn(7), 230);
MAP(XK_Fn(8), 231);
MAP(XK_Fn(9), 232);
MAP(XK_Fn(10), 233);
MAP(XK_Fn(11), 192);
MAP(XK_Fn(12), 193);
MAP(XK_Fn(13), 194);
MAP(XK_Fn(14), 195); /* kund */
MAP(XK_Fn(15), 196);
MAP(XK_Fn(16), 197); /* kcpy */
MAP(XK_Fn(17), 198);
MAP(XK_Fn(18), 199);
MAP(XK_Fn(19), 200); /* kfnd */
MAP(XK_Fn(20), 201);
/* kf31-kf36 are numbered sequentially */
MAP(XK_Fn(21), 208); /* kf31 */
MAP(XK_Fn(22), 209);
MAP(XK_Fn(23), 210);
MAP(XK_Fn(24), 211);
MAP(XK_Fn(25), 212);
MAP(XK_Fn(26), 213); /* kf36 */
/* kf37-kf47 are interspersed with keypad keys */
MAP(XK_Fn(27), 214); /* khome */
MAP(XK_Fn(28), 215); /* kf38 */
MAP(XK_Fn(29), 216); /* kpp */
MAP(XK_Fn(30), 217); /* kf40 */
MAP(XK_Fn(31), 218); /* kb2 */
MAP(XK_Fn(32), 219); /* kf42 */
MAP(XK_Fn(33), 220); /* kend */
MAP(XK_Fn(34), 221); /* kf44 */
MAP(XK_Fn(35), 222); /* knp */
MAP(XK_Fn(36), 234); /* kf46 */
MAP(XK_Fn(37), 235); /* kf47 */
default:
result = -1;
break;
}
} else {
switch (kd->keysym) {
MAP(XK_Help, 196); /* khlp */
MAP(XK_Menu, 197);
MAP(XK_Find, 1);
MAP(XK_Insert, 2); /* kich1 */
MAP(XK_Delete, 3);
#ifdef XK_KP_Insert
MAP(XK_KP_Insert, 2);
MAP(XK_KP_Delete, 3);
#endif
#ifdef DXK_Remove
MAP(DXK_Remove, 3);
#endif
MAP(XK_Select, 4);
MAP(XK_Prior, 216);
MAP(XK_Next, 222);
MAP(XK_Home, 214);
MAP(XK_End, 220);
MAP(XK_Begin, 218); /* kf41=kb2 */
default:
result = -1;
break;
}
}
if (result > 0) {
reply->a_type = ANSI_CSI;
reply->a_nparam = 1;
reply->a_param[0] = result;
reply->a_final = 'z';
} else if (IsCursorKey(kd->keysym)) {
reply->a_type = ANSI_SS3;
reply->a_final = (Char) curfinal[kd->keysym - XK_Home];
}
#else
(void) reply;
(void) kd;
#endif /* OPT_SUN_FUNC_KEYS */
}
#if OPT_NUM_LOCK
#define isName(c) ((c) == '_' || (c) == '-' || isalnum(CharOf(c)))
static const char *
skipName(const char *s)
{
while (*s != '\0' && isName(CharOf(*s)))
++s;
return s;
}
/*
* Found a ":" in a translation, check what is past it to see if it contains
* any of the insert-text action names.
*/
static Boolean
keyCanInsert(const char *parse)
{
Boolean result = False;
Boolean escape = False;
Boolean quoted = False;
static const char *const table[] =
{
"insert",
"insert-seven-bit",
"insert-eight-bit",
"string",
};
Cardinal n;
while (*parse != '\0' && *parse != '\n') {
int ch = CharOf(*parse++);
if (escape) {
escape = False;
} else if (ch == '\\') {
escape = True;
} else if (ch == '"') {
quoted = (Boolean) !quoted;
} else if (!quoted && isName(ch)) {
const char *next = skipName(--parse);
size_t need = (size_t) (next - parse);
for (n = 0; n < XtNumber(table); ++n) {
if (need == strlen(table[n])
&& !strncmp(parse, table[n], need)) {
result = True;
break;
}
}
parse = next;
}
}
return result;
}
/*
* Strip the entire action, to avoid matching it.
*/
static char *
stripAction(char *base, char *last)
{
while (last != base) {
if (*--last == '\n') {
break;
}
}
return last;
}
static char *
stripBlanks(char *base, char *last)
{
while (last != base) {
int ch = CharOf(last[-1]);
if (ch != ' ' && ch != '\t')
break;
--last;
}
return last;
}
/*
* Strip unneeded whitespace from a translations resource, mono-casing and
* returning a malloc'd copy of the result.
*/
static char *
stripTranslations(const char *s, Bool onlyInsert)
{
char *dst = 0;
if (s != 0) {
dst = TypeMallocN(char, strlen(s) + 1);
if (dst != 0) {
int state = 0;
int prv = 0;
char *d = dst;
TRACE(("stripping:\n%s\n", s));
while (*s != '\0') {
int ch = *s++;
if (ch == '\n') {
if (d != dst)
*d++ = (char) ch;
state = 0;
} else if (strchr(":!#", ch) != 0) {
d = stripBlanks(dst, d);
if (onlyInsert && (ch == ':') && !keyCanInsert(s)) {
d = stripAction(dst, d);
}
state = -1;
} else if (state >= 0) {
if (isspace(CharOf(ch))) {
if (state == 0 || strchr("<>~ \t", prv))
continue;
} else if (strchr("<>~", ch)) {
d = stripBlanks(dst, d);
}
*d++ = x_toupper(ch);
++state;
}
prv = ch;
}
*d = '\0';
TRACE(("...result:\n%s\n", dst));
}
}
return dst;
}
/*
* Make a simple check to see if a given translations keyword appears in
* xterm's translations resource. It does not attempt to parse the strings,
* just makes a case-independent check and ensures that the ends of the match
* are on token-boundaries.
*
* That this can only retrieve translations that are given as resource values;
* the default translations in charproc.c for example are not retrievable by
* any interface to X.
*
* Also: We can retrieve only the most-specified translation resource. For
* example, if the resource file specifies both "*translations" and
* "XTerm*translations", we see only the latter.
*/
static Bool
TranslationsUseKeyword(Widget w, char **cache, const char *keyword, Bool onlyInsert)
{
Bool result = False;
char *copy;
char *test;
if ((test = stripTranslations(keyword, onlyInsert)) != 0) {
if (*cache == 0) {
String data = 0;
getKeymapResources(w, "vt100", "VT100", XtRString, &data, sizeof(data));
if (data != 0 && (copy = stripTranslations(data, onlyInsert)) != 0) {
*cache = copy;
}
}
if (*cache != 0) {
char *p = *cache;
int state = 0;
int now = ' ';
while (*p != 0) {
int prv = now;
now = *p++;
if (now == ':'
|| now == '!') {
state = -1;
} else if (now == '\n') {
state = 0;
} else if (state >= 0) {
if (now == test[state]) {
if ((state != 0
|| !isName(prv))
&& ((test[++state] == 0)
&& !isName(*p))) {
result = True;
break;
}
} else {
state = 0;
}
}
}
}
free(test);
}
TRACE(("TranslationsUseKeyword(%p, %s) = %d\n",
(void *) w, keyword, result));
return result;
}
static Bool
xtermHasTranslation(XtermWidget xw, const char *keyword, Bool onlyInsert)
{
return (TranslationsUseKeyword(SHELL_OF(xw),
&(xw->keyboard.shell_translations),
keyword,
onlyInsert)
|| TranslationsUseKeyword((Widget) xw,
&(xw->keyboard.xterm_translations),
keyword,
onlyInsert));
}
#if OPT_EXTRA_PASTE
static void
addTranslation(XtermWidget xw, const char *fromString, const char *toString)
{
size_t have = (xw->keyboard.extra_translations
? strlen(xw->keyboard.extra_translations)
: 0);
size_t need = (((have != 0) ? (have + 4) : 0)
+ strlen(fromString)
+ strlen(toString)
+ 6);
if (!xtermHasTranslation(xw, fromString, False)) {
xw->keyboard.extra_translations
= TypeRealloc(char, need, xw->keyboard.extra_translations);
if ((xw->keyboard.extra_translations) != 0) {
TRACE(("adding %s: %s\n", fromString, toString));
if (have)
strcat(xw->keyboard.extra_translations, " \\n\\");
sprintf(xw->keyboard.extra_translations, "%s: %s",
fromString, toString);
TRACE(("...{%s}\n", xw->keyboard.extra_translations));
}
}
}
#endif
#define SaveMask(name) xw->work.name |= (unsigned) mask;\
TRACE(("SaveMask(%#x -> %s) %#x (%#x is%s modifier)\n", \
(unsigned) keysym, #name, \
xw->work.name, (unsigned) mask, \
ModifierName((unsigned) mask)));
/*
* Determine which modifier mask (if any) applies to the Num_Lock keysym.
*
* Also, determine which modifiers are associated with the ALT keys, so we can
* send that information as a parameter for special keys in Sun/PC keyboard
* mode. However, if the ALT modifier is used in translations, we do not want
* to confuse things by sending the parameter.
*/
void
VTInitModifiers(XtermWidget xw)
{
Display *dpy = XtDisplay(xw);
XModifierKeymap *keymap = XGetModifierMapping(dpy);
KeySym keysym;
int min_keycode, max_keycode, keysyms_per_keycode = 0;
if (keymap != 0) {
KeySym *theMap;
int keycode_count;
TRACE(("VTInitModifiers\n"));
XDisplayKeycodes(dpy, &min_keycode, &max_keycode);
keycode_count = (max_keycode - min_keycode + 1);
theMap = XGetKeyboardMapping(dpy,
(KeyCode) min_keycode,
keycode_count,
&keysyms_per_keycode);
if (theMap != 0) {
int i, j, k, l;
unsigned long mask;
#if OPT_EXTRA_PASTE
/*
* Assume that if we can find the paste keysym in the X keyboard
* mapping that the server allows the corresponding translations
* resource.
*/
int limit = (max_keycode - min_keycode) * keysyms_per_keycode;
for (i = 0; i < limit; ++i) {
#ifdef XF86XK_Paste
if (theMap[i] == XF86XK_Paste) {
TRACE(("keyboard has XF86XK_Paste\n"));
addTranslation(xw,
":<KeyPress> XF86Paste",
"insert-selection(SELECT, CUT_BUFFER0)");
}
#endif
#ifdef SunXK_Paste
if (theMap[i] == SunXK_Paste) {
TRACE(("keyboard has SunXK_Paste\n"));
addTranslation(xw,
":<KeyPress> SunPaste",
"insert-selection(SELECT, CUT_BUFFER0)");
}
#endif
}
#endif /* OPT_EXTRA_PASTE */
for (i = k = 0, mask = 1; i < 8; i++, mask <<= 1) {
for (j = 0; j < keymap->max_keypermod; j++) {
KeyCode code = keymap->modifiermap[k++];
if (code == 0)
continue;
for (l = 0; l < keysyms_per_keycode; ++l) {
#ifdef HAVE_XKBKEYCODETOKEYSYM
keysym = XkbKeycodeToKeysym(dpy, code, 0, l);
#else
keysym = XKeycodeToKeysym(dpy, code, l);
#endif
if (keysym == NoSymbol) {
/* EMPTY */ ;
} else if (keysym == XK_Num_Lock) {
SaveMask(num_lock);
} else if (keysym == XK_Alt_L || keysym == XK_Alt_R) {
SaveMask(alt_mods);
} else if (keysym == XK_Meta_L || keysym == XK_Meta_R) {
SaveMask(meta_mods);
}
}
}
}
XFree(theMap);
}
/* Don't disable any mods if "alwaysUseMods" is true. */
if (!xw->misc.alwaysUseMods) {
/*
* Force TranslationsUseKeyword() to reload.
*/
if (xw->keyboard.shell_translations) {
free(xw->keyboard.shell_translations);
xw->keyboard.shell_translations = 0;
}
if (xw->keyboard.xterm_translations) {
free(xw->keyboard.xterm_translations);
xw->keyboard.xterm_translations = 0;
}
/*
* If the Alt modifier is used in translations, we would rather not
* use it to modify function-keys when NumLock is active.
*/
if ((xw->work.alt_mods != 0)
&& xtermHasTranslation(xw, "alt", True)) {
TRACE(("ALT is used as a modifier in translations (ignore mask)\n"));
xw->work.alt_mods = 0;
}
/*
* If the Meta modifier is used in translations, we would rather not
* use it to modify function-keys.
*/
if ((xw->work.meta_mods != 0)
&& xtermHasTranslation(xw, "meta", True)) {
TRACE(("META is used as a modifier in translations\n"));
xw->work.meta_mods = 0;
}
}
XFreeModifiermap(keymap);
}
}
#endif /* OPT_NUM_LOCK */
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