1 /************************************************************
2 * Copyright (c) 1994 by Silicon Graphics Computer Systems, Inc.
4 * Permission to use, copy, modify, and distribute this
5 * software and its documentation for any purpose and without
6 * fee is hereby granted, provided that the above copyright
7 * notice appear in all copies and that both that copyright
8 * notice and this permission notice appear in supporting
9 * documentation, and that the name of Silicon Graphics not be
10 * used in advertising or publicity pertaining to distribution
11 * of the software without specific prior written permission.
12 * Silicon Graphics makes no representation about the suitability
13 * of this software for any purpose. It is provided "as is"
14 * without any express or implied warranty.
16 * SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
17 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
18 * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
19 * GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL
20 * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
21 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
22 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH
23 * THE USE OR PERFORMANCE OF THIS SOFTWARE.
25 ********************************************************/
27 #include "xkbcomp-priv.h"
33 InitVModInfo(VModInfo *info, struct xkb_keymap *keymap)
37 memset(info, 0, sizeof(*info));
38 for (i = 0; i < darray_size(keymap->vmods); i++)
39 info->defined |= (1 << i);
43 HandleVModDef(VModDef *stmt, struct xkb_keymap *keymap, VModInfo *info)
46 const struct xkb_vmod *vmod;
51 "Support for setting a value in a virtual_modifiers statement has been removed; "
54 darray_enumerate(i, vmod, keymap->vmods) {
55 if (vmod->name == stmt->name) {
56 info->available |= 1 << i;
61 if (darray_size(keymap->vmods) >= XKB_MAX_VIRTUAL_MODS) {
63 "Too many virtual modifiers defined (maximum %d)\n",
64 XKB_MAX_VIRTUAL_MODS);
68 new.name = stmt->name;
70 darray_append(keymap->vmods, new);
71 info->available |= (1 << (darray_size(keymap->vmods) - 1));
76 LookupVModIndex(const struct xkb_keymap *keymap, xkb_atom_t field,
77 enum expr_value_type type, xkb_mod_index_t *val_rtrn)
79 const struct xkb_vmod *vmod;
82 if (type != EXPR_TYPE_INT)
85 darray_enumerate(i, vmod, keymap->vmods) {
86 if (vmod->name == field) {
96 LookupVModMask(struct xkb_context *ctx, const void *priv, xkb_atom_t field,
97 enum expr_value_type type, xkb_mod_mask_t *val_rtrn)
101 if (LookupModMask(ctx, NULL, field, type, val_rtrn)) {
104 else if (LookupVModIndex(priv, field, type, &ndx)) {
105 *val_rtrn = (1 << (XKB_NUM_CORE_MODS + ndx));
113 ResolveVirtualModifier(ExprDef *def, struct xkb_keymap *keymap,
114 xkb_mod_index_t *ndx_rtrn, VModInfo *info)
116 const struct xkb_vmod *vmod;
118 xkb_atom_t name = def->value.str;
120 if (def->op != EXPR_IDENT) {
122 "Cannot resolve virtual modifier: "
123 "found %s where a virtual modifier name was expected\n",
124 expr_op_type_to_string(def->op));
128 darray_enumerate(i, vmod, keymap->vmods) {
129 if ((info->available & (1 << i)) && vmod->name == name) {
136 "Cannot resolve virtual modifier: "
137 "\"%s\" was not previously declared\n",
138 xkb_atom_text(keymap->ctx, name));