root / keymaps.c @ a245f2e7
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/*
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* QEMU keysym to keycode conversion using rdesktop keymaps
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*
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* Copyright (c) 2004 Johannes Schindelin
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* 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 OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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static int get_keysym(const char *name) |
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{ |
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name2keysym_t *p; |
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for(p = name2keysym; p->name != NULL; p++) { |
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if (!strcmp(p->name, name))
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return p->keysym;
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} |
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return 0; |
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} |
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struct key_range {
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int start;
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int end;
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struct key_range *next;
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}; |
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#define MAX_NORMAL_KEYCODE 512 |
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#define MAX_EXTRA_COUNT 256 |
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typedef struct { |
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uint16_t keysym2keycode[MAX_NORMAL_KEYCODE]; |
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struct {
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int keysym;
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uint16_t keycode; |
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} keysym2keycode_extra[MAX_EXTRA_COUNT]; |
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int extra_count;
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struct key_range *keypad_range;
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struct key_range *numlock_range;
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} kbd_layout_t; |
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static void add_to_key_range(struct key_range **krp, int code) { |
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struct key_range *kr;
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for (kr = *krp; kr; kr = kr->next) {
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if (code >= kr->start && code <= kr->end)
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break;
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if (code == kr->start - 1) { |
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kr->start--; |
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break;
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} |
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if (code == kr->end + 1) { |
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kr->end++; |
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break;
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} |
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} |
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if (kr == NULL) { |
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kr = qemu_mallocz(sizeof(*kr));
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if (kr) {
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kr->start = kr->end = code; |
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kr->next = *krp; |
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*krp = kr; |
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} |
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} |
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} |
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static kbd_layout_t *parse_keyboard_layout(const char *language, |
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kbd_layout_t * k) |
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{ |
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FILE *f; |
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char file_name[1024]; |
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char line[1024]; |
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int len;
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snprintf(file_name, sizeof(file_name),
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"%s/keymaps/%s", bios_dir, language);
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if (!k)
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k = qemu_mallocz(sizeof(kbd_layout_t));
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if (!k)
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return 0; |
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if (!(f = fopen(file_name, "r"))) { |
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fprintf(stderr, |
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"Could not read keymap file: '%s'\n", file_name);
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return 0; |
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} |
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for(;;) {
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if (fgets(line, 1024, f) == NULL) |
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break;
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len = strlen(line); |
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if (len > 0 && line[len - 1] == '\n') |
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line[len - 1] = '\0'; |
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if (line[0] == '#') |
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continue;
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if (!strncmp(line, "map ", 4)) |
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continue;
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if (!strncmp(line, "include ", 8)) { |
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parse_keyboard_layout(line + 8, k);
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} else {
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char *end_of_keysym = line;
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while (*end_of_keysym != 0 && *end_of_keysym != ' ') |
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end_of_keysym++; |
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if (*end_of_keysym) {
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int keysym;
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*end_of_keysym = 0;
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keysym = get_keysym(line); |
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if (keysym == 0) { |
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// fprintf(stderr, "Warning: unknown keysym %s\n", line);
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} else {
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const char *rest = end_of_keysym + 1; |
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char *rest2;
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int keycode = strtol(rest, &rest2, 0); |
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if (rest && strstr(rest, "numlock")) { |
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add_to_key_range(&k->keypad_range, keycode); |
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add_to_key_range(&k->numlock_range, keysym); |
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//fprintf(stderr, "keypad keysym %04x keycode %d\n", keysym, keycode);
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} |
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/* if(keycode&0x80)
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keycode=(keycode<<8)^0x80e0; */
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if (keysym < MAX_NORMAL_KEYCODE) {
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//fprintf(stderr,"Setting keysym %s (%d) to %d\n",line,keysym,keycode);
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k->keysym2keycode[keysym] = keycode; |
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} else {
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if (k->extra_count >= MAX_EXTRA_COUNT) {
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fprintf(stderr, |
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"Warning: Could not assign keysym %s (0x%x) because of memory constraints.\n",
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line, keysym); |
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} else {
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#if 0
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fprintf(stderr, "Setting %d: %d,%d\n",
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k->extra_count, keysym, keycode);
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#endif
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k->keysym2keycode_extra[k->extra_count]. |
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keysym = keysym; |
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k->keysym2keycode_extra[k->extra_count]. |
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keycode = keycode; |
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k->extra_count++; |
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} |
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} |
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} |
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} |
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} |
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} |
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fclose(f); |
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return k;
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} |
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static void *init_keyboard_layout(const char *language) |
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{ |
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return parse_keyboard_layout(language, 0); |
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} |
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static int keysym2scancode(void *kbd_layout, int keysym) |
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{ |
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kbd_layout_t *k = kbd_layout; |
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if (keysym < MAX_NORMAL_KEYCODE) {
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if (k->keysym2keycode[keysym] == 0) |
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fprintf(stderr, "Warning: no scancode found for keysym %d\n",
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keysym); |
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return k->keysym2keycode[keysym];
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} else {
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int i;
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#ifdef XK_ISO_Left_Tab
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if (keysym == XK_ISO_Left_Tab)
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keysym = XK_Tab; |
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#endif
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for (i = 0; i < k->extra_count; i++) |
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if (k->keysym2keycode_extra[i].keysym == keysym)
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return k->keysym2keycode_extra[i].keycode;
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} |
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return 0; |
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} |
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static inline int keycode_is_keypad(void *kbd_layout, int keycode) |
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{ |
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kbd_layout_t *k = kbd_layout; |
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struct key_range *kr;
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for (kr = k->keypad_range; kr; kr = kr->next)
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if (keycode >= kr->start && keycode <= kr->end)
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return 1; |
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return 0; |
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} |
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static inline int keysym_is_numlock(void *kbd_layout, int keysym) |
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{ |
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kbd_layout_t *k = kbd_layout; |
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struct key_range *kr;
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for (kr = k->numlock_range; kr; kr = kr->next)
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if (keysym >= kr->start && keysym <= kr->end)
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return 1; |
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return 0; |
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} |