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android / platform / external / libxkbcommon / refs/tags/android-platform-12.0.0_r16 / . / src / xkbcomp / symbols.c
blob: eb784127fadaa374abcfcbb8c853a04d61507b58 [file] [log] [blame]
/************************************************************
* Copyright (c) 1994 by Silicon Graphics Computer Systems, Inc.
*
* 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 Silicon Graphics not be
* used in advertising or publicity pertaining to distribution
* of the software without specific prior written permission.
* Silicon Graphics makes no representation about the suitability
* of this software for any purpose. It is provided "as is"
* without any express or implied warranty.
*
* SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON
* GRAPHICS 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.
*
********************************************************/
/*
* Copyright © 2012 Intel Corporation
* Copyright © 2012 Ran Benita <ran234@gmail.com>
*
* 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 (including the next
* paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
*
* Author: Daniel Stone <daniel@fooishbar.org>
* Ran Benita <ran234@gmail.com>
*/
#include "config.h"
#include "xkbcomp-priv.h"
#include "text.h"
#include "expr.h"
#include "action.h"
#include "vmod.h"
#include "include.h"
#include "keysym.h"
enum key_repeat {
KEY_REPEAT_UNDEFINED = 0,
KEY_REPEAT_YES = 1,
KEY_REPEAT_NO = 2,
};
enum group_field {
GROUP_FIELD_SYMS = (1 << 0),
GROUP_FIELD_ACTS = (1 << 1),
GROUP_FIELD_TYPE = (1 << 2),
};
enum key_field {
KEY_FIELD_REPEAT = (1 << 0),
KEY_FIELD_DEFAULT_TYPE = (1 << 1),
KEY_FIELD_GROUPINFO = (1 << 2),
KEY_FIELD_VMODMAP = (1 << 3),
};
typedef struct {
enum group_field defined;
darray(struct xkb_level) levels;
xkb_atom_t type;
} GroupInfo;
typedef struct {
enum key_field defined;
enum merge_mode merge;
xkb_atom_t name;
darray(GroupInfo) groups;
enum key_repeat repeat;
xkb_mod_mask_t vmodmap;
xkb_atom_t default_type;
enum xkb_range_exceed_type out_of_range_group_action;
xkb_layout_index_t out_of_range_group_number;
} KeyInfo;
static void
ClearLevelInfo(struct xkb_level *leveli)
{
if (leveli->num_syms > 1)
free(leveli->u.syms);
}
static void
InitGroupInfo(GroupInfo *groupi)
{
memset(groupi, 0, sizeof(*groupi));
}
static void
ClearGroupInfo(GroupInfo *groupi)
{
struct xkb_level *leveli;
darray_foreach(leveli, groupi->levels)
ClearLevelInfo(leveli);
darray_free(groupi->levels);
}
static void
CopyGroupInfo(GroupInfo *to, const GroupInfo *from)
{
to->defined = from->defined;
to->type = from->type;
darray_init(to->levels);
darray_copy(to->levels, from->levels);
for (xkb_level_index_t j = 0; j < darray_size(to->levels); j++)
if (darray_item(from->levels, j).num_syms > 1)
darray_item(to->levels, j).u.syms =
memdup(darray_item(from->levels, j).u.syms,
darray_item(from->levels, j).num_syms,
sizeof(xkb_keysym_t));
}
static void
InitKeyInfo(struct xkb_context *ctx, KeyInfo *keyi)
{
memset(keyi, 0, sizeof(*keyi));
keyi->merge = MERGE_OVERRIDE;
keyi->name = xkb_atom_intern_literal(ctx, "*");
keyi->out_of_range_group_action = RANGE_WRAP;
}
static void
ClearKeyInfo(KeyInfo *keyi)
{
GroupInfo *groupi;
darray_foreach(groupi, keyi->groups)
ClearGroupInfo(groupi);
darray_free(keyi->groups);
}
/***====================================================================***/
typedef struct {
enum merge_mode merge;
bool haveSymbol;
xkb_mod_index_t modifier;
union {
xkb_atom_t keyName;
xkb_keysym_t keySym;
} u;
} ModMapEntry;
typedef struct {
char *name; /* e.g. pc+us+inet(evdev) */
int errorCount;
enum merge_mode merge;
xkb_layout_index_t explicit_group;
darray(KeyInfo) keys;
KeyInfo default_key;
ActionsInfo *actions;
darray(xkb_atom_t) group_names;
darray(ModMapEntry) modmaps;
struct xkb_mod_set mods;
struct xkb_context *ctx;
/* Needed for AddKeySymbols. */
const struct xkb_keymap *keymap;
} SymbolsInfo;
static void
InitSymbolsInfo(SymbolsInfo *info, const struct xkb_keymap *keymap,
ActionsInfo *actions, const struct xkb_mod_set *mods)
{
memset(info, 0, sizeof(*info));
info->ctx = keymap->ctx;
info->keymap = keymap;
info->merge = MERGE_OVERRIDE;
InitKeyInfo(keymap->ctx, &info->default_key);
info->actions = actions;
info->mods = *mods;
info->explicit_group = XKB_LAYOUT_INVALID;
}
static void
ClearSymbolsInfo(SymbolsInfo *info)
{
KeyInfo *keyi;
free(info->name);
darray_foreach(keyi, info->keys)
ClearKeyInfo(keyi);
darray_free(info->keys);
darray_free(info->group_names);
darray_free(info->modmaps);
ClearKeyInfo(&info->default_key);
}
static const char *
KeyInfoText(SymbolsInfo *info, KeyInfo *keyi)
{
return KeyNameText(info->ctx, keyi->name);
}
static bool
MergeGroups(SymbolsInfo *info, GroupInfo *into, GroupInfo *from, bool clobber,
bool report, xkb_layout_index_t group, xkb_atom_t key_name)
{
xkb_level_index_t i, levels_in_both;
struct xkb_level *level;
/* First find the type of the merged group. */
if (into->type != from->type) {
if (from->type == XKB_ATOM_NONE) {
/* it's empty for consistency with other comparisons */
}
else if (into->type == XKB_ATOM_NONE) {
into->type = from->type;
}
else {
xkb_atom_t use = (clobber ? from->type : into->type);
xkb_atom_t ignore = (clobber ? into->type : from->type);
if (report)
log_warn(info->ctx,
"Multiple definitions for group %d type of key %s; "
"Using %s, ignoring %s\n",
group + 1, KeyNameText(info->ctx, key_name),
xkb_atom_text(info->ctx, use),
xkb_atom_text(info->ctx, ignore));
into->type = use;
}
}
into->defined |= (from->defined & GROUP_FIELD_TYPE);
/* Now look at the levels. */
if (darray_empty(from->levels)) {
InitGroupInfo(from);
return true;
}
if (darray_empty(into->levels)) {
from->type = into->type;
*into = *from;
InitGroupInfo(from);
return true;
}
/* Merge the actions and syms. */
levels_in_both = MIN(darray_size(into->levels), darray_size(from->levels));
for (i = 0; i < levels_in_both; i++) {
struct xkb_level *intoLevel = &darray_item(into->levels, i);
struct xkb_level *fromLevel = &darray_item(from->levels, i);
if (fromLevel->action.type == ACTION_TYPE_NONE) {
/* it's empty for consistency with other comparisons */
}
else if (intoLevel->action.type == ACTION_TYPE_NONE) {
intoLevel->action = fromLevel->action;
}
else {
union xkb_action *use, *ignore;
use = (clobber ? &fromLevel->action : &intoLevel->action);
ignore = (clobber ? &intoLevel->action : &fromLevel->action);
if (report)
log_warn(info->ctx,
"Multiple actions for level %d/group %u on key %s; "
"Using %s, ignoring %s\n",
i + 1, group + 1, KeyNameText(info->ctx, key_name),
ActionTypeText(use->type),
ActionTypeText(ignore->type));
intoLevel->action = *use;
}
if (fromLevel->num_syms == 0) {
/* it's empty for consistency with other comparisons */
}
else if (intoLevel->num_syms == 0) {
intoLevel->num_syms = fromLevel->num_syms;
if (fromLevel->num_syms > 1)
intoLevel->u.syms = fromLevel->u.syms;
else
intoLevel->u.sym = fromLevel->u.sym;
fromLevel->num_syms = 0;
}
else if (!XkbLevelsSameSyms(fromLevel, intoLevel)) {
if (report)
log_warn(info->ctx,
"Multiple symbols for level %d/group %u on key %s; "
"Using %s, ignoring %s\n",
i + 1, group + 1, KeyNameText(info->ctx, key_name),
(clobber ? "from" : "to"),
(clobber ? "to" : "from"));
if (clobber) {
ClearLevelInfo(intoLevel);
intoLevel->num_syms = fromLevel->num_syms;
if (fromLevel->num_syms > 1)
intoLevel->u.syms = fromLevel->u.syms;
else
intoLevel->u.sym = fromLevel->u.sym;
fromLevel->num_syms = 0;
}
}
}
/* If @from has extra levels, get them as well. */
darray_foreach_from(level, from->levels, levels_in_both) {
darray_append(into->levels, *level);
level->num_syms = 0;
}
into->defined |= (from->defined & GROUP_FIELD_ACTS);
into->defined |= (from->defined & GROUP_FIELD_SYMS);
return true;
}
static bool
UseNewKeyField(enum key_field field, enum key_field old, enum key_field new,
bool clobber, bool report, enum key_field *collide)
{
if (!(old & field))
return (new & field);
if (new & field) {
if (report)
*collide |= field;
if (clobber)
return true;
}
return false;
}
static bool
MergeKeys(SymbolsInfo *info, KeyInfo *into, KeyInfo *from, bool same_file)
{
xkb_layout_index_t i;
xkb_layout_index_t groups_in_both;
enum key_field collide = 0;
const int verbosity = xkb_context_get_log_verbosity(info->ctx);
const bool clobber = (from->merge != MERGE_AUGMENT);
const bool report = (same_file && verbosity > 0) || verbosity > 9;
if (from->merge == MERGE_REPLACE) {
ClearKeyInfo(into);
*into = *from;
InitKeyInfo(info->ctx, from);
return true;
}
groups_in_both = MIN(darray_size(into->groups), darray_size(from->groups));
for (i = 0; i < groups_in_both; i++)
MergeGroups(info,
&darray_item(into->groups, i),
&darray_item(from->groups, i),
clobber, report, i, into->name);
/* If @from has extra groups, just move them to @into. */
for (i = groups_in_both; i < darray_size(from->groups); i++) {
darray_append(into->groups, darray_item(from->groups, i));
InitGroupInfo(&darray_item(from->groups, i));
}
if (UseNewKeyField(KEY_FIELD_VMODMAP, into->defined, from->defined,
clobber, report, &collide)) {
into->vmodmap = from->vmodmap;
into->defined |= KEY_FIELD_VMODMAP;
}
if (UseNewKeyField(KEY_FIELD_REPEAT, into->defined, from->defined,
clobber, report, &collide)) {
into->repeat = from->repeat;
into->defined |= KEY_FIELD_REPEAT;
}
if (UseNewKeyField(KEY_FIELD_DEFAULT_TYPE, into->defined, from->defined,
clobber, report, &collide)) {
into->default_type = from->default_type;
into->defined |= KEY_FIELD_DEFAULT_TYPE;
}
if (UseNewKeyField(KEY_FIELD_GROUPINFO, into->defined, from->defined,
clobber, report, &collide)) {
into->out_of_range_group_action = from->out_of_range_group_action;
into->out_of_range_group_number = from->out_of_range_group_number;
into->defined |= KEY_FIELD_GROUPINFO;
}
if (collide)
log_warn(info->ctx,
"Symbol map for key %s redefined; "
"Using %s definition for conflicting fields\n",
KeyNameText(info->ctx, into->name),
(clobber ? "first" : "last"));
ClearKeyInfo(from);
InitKeyInfo(info->ctx, from);
return true;
}
/* TODO: Make it so this function doesn't need the entire keymap. */
static bool
AddKeySymbols(SymbolsInfo *info, KeyInfo *keyi, bool same_file)
{
xkb_atom_t real_name;
KeyInfo *iter;
/*
* Don't keep aliases in the keys array; this guarantees that
* searching for keys to merge with by straight comparison (see the
* following loop) is enough, and we won't get multiple KeyInfo's
* for the same key because of aliases.
*/
real_name = XkbResolveKeyAlias(info->keymap, keyi->name);
if (real_name != XKB_ATOM_NONE)
keyi->name = real_name;
darray_foreach(iter, info->keys)
if (iter->name == keyi->name)
return MergeKeys(info, iter, keyi, same_file);
darray_append(info->keys, *keyi);
InitKeyInfo(info->ctx, keyi);
return true;
}
static bool
AddModMapEntry(SymbolsInfo *info, ModMapEntry *new)
{
ModMapEntry *old;
bool clobber = (new->merge != MERGE_AUGMENT);
darray_foreach(old, info->modmaps) {
xkb_mod_index_t use, ignore;
if ((new->haveSymbol != old->haveSymbol) ||
(new->haveSymbol && new->u.keySym != old->u.keySym) ||
(!new->haveSymbol && new->u.keyName != old->u.keyName))
continue;
if (new->modifier == old->modifier)
return true;
use = (clobber ? new->modifier : old->modifier);
ignore = (clobber ? old->modifier : new->modifier);
if (new->haveSymbol)
log_warn(info->ctx,
"Symbol \"%s\" added to modifier map for multiple modifiers; "
"Using %s, ignoring %s\n",
KeysymText(info->ctx, new->u.keySym),
ModIndexText(info->ctx, &info->mods, use),
ModIndexText(info->ctx, &info->mods, ignore));
else
log_warn(info->ctx,
"Key \"%s\" added to modifier map for multiple modifiers; "
"Using %s, ignoring %s\n",
KeyNameText(info->ctx, new->u.keyName),
ModIndexText(info->ctx, &info->mods, use),
ModIndexText(info->ctx, &info->mods, ignore));
old->modifier = use;
return true;
}
darray_append(info->modmaps, *new);
return true;
}
/***====================================================================***/
static void
MergeIncludedSymbols(SymbolsInfo *into, SymbolsInfo *from,
enum merge_mode merge)
{
xkb_atom_t *group_name;
xkb_layout_index_t group_names_in_both;
if (from->errorCount > 0) {
into->errorCount += from->errorCount;
return;
}
into->mods = from->mods;
if (into->name == NULL) {
into->name = from->name;
from->name = NULL;
}
group_names_in_both = MIN(darray_size(into->group_names),
darray_size(from->group_names));
for (xkb_layout_index_t i = 0; i < group_names_in_both; i++) {
if (!darray_item(from->group_names, i))
continue;
if (merge == MERGE_AUGMENT && darray_item(into->group_names, i))
continue;
darray_item(into->group_names, i) = darray_item(from->group_names, i);
}
/* If @from has more, get them as well. */
darray_foreach_from(group_name, from->group_names, group_names_in_both)
darray_append(into->group_names, *group_name);
if (darray_empty(into->keys)) {
into->keys = from->keys;
darray_init(from->keys);
}
else {
KeyInfo *keyi;
darray_foreach(keyi, from->keys) {
keyi->merge = (merge == MERGE_DEFAULT ? keyi->merge : merge);
if (!AddKeySymbols(into, keyi, false))
into->errorCount++;
}
}
if (darray_empty(into->modmaps)) {
into->modmaps = from->modmaps;
darray_init(from->modmaps);
}
else {
ModMapEntry *mm;
darray_foreach(mm, from->modmaps) {
mm->merge = (merge == MERGE_DEFAULT ? mm->merge : merge);
if (!AddModMapEntry(into, mm))
into->errorCount++;
}
}
}
static void
HandleSymbolsFile(SymbolsInfo *info, XkbFile *file, enum merge_mode merge);
static bool
HandleIncludeSymbols(SymbolsInfo *info, IncludeStmt *include)
{
SymbolsInfo included;
InitSymbolsInfo(&included, info->keymap, info->actions, &info->mods);
included.name = include->stmt;
include->stmt = NULL;
for (IncludeStmt *stmt = include; stmt; stmt = stmt->next_incl) {
SymbolsInfo next_incl;
XkbFile *file;
file = ProcessIncludeFile(info->ctx, stmt, FILE_TYPE_SYMBOLS);
if (!file) {
info->errorCount += 10;
ClearSymbolsInfo(&included);
return false;
}
InitSymbolsInfo(&next_incl, info->keymap, info->actions,
&included.mods);
if (stmt->modifier) {
next_incl.explicit_group = atoi(stmt->modifier) - 1;
if (next_incl.explicit_group >= XKB_MAX_GROUPS) {
log_err(info->ctx,
"Cannot set explicit group to %d - must be between 1..%d; "
"Ignoring group number\n",
next_incl.explicit_group + 1, XKB_MAX_GROUPS);
next_incl.explicit_group = info->explicit_group;
}
}
else {
next_incl.explicit_group = info->explicit_group;
}
HandleSymbolsFile(&next_incl, file, MERGE_OVERRIDE);
MergeIncludedSymbols(&included, &next_incl, stmt->merge);
ClearSymbolsInfo(&next_incl);
FreeXkbFile(file);
}
MergeIncludedSymbols(info, &included, include->merge);
ClearSymbolsInfo(&included);
return (info->errorCount == 0);
}
#define SYMBOLS 1
#define ACTIONS 2
static bool
GetGroupIndex(SymbolsInfo *info, KeyInfo *keyi, ExprDef *arrayNdx,
unsigned what, xkb_layout_index_t *ndx_rtrn)
{
const char *name = (what == SYMBOLS ? "symbols" : "actions");
if (arrayNdx == NULL) {
xkb_layout_index_t i;
GroupInfo *groupi;
enum group_field field = (what == SYMBOLS ?
GROUP_FIELD_SYMS : GROUP_FIELD_ACTS);
darray_enumerate(i, groupi, keyi->groups) {
if (!(groupi->defined & field)) {
*ndx_rtrn = i;
return true;
}
}
if (i >= XKB_MAX_GROUPS) {
log_err(info->ctx,
"Too many groups of %s for key %s (max %u); "
"Ignoring %s defined for extra groups\n",
name, KeyInfoText(info, keyi), XKB_MAX_GROUPS, name);
return false;
}
darray_resize0(keyi->groups, darray_size(keyi->groups) + 1);
*ndx_rtrn = darray_size(keyi->groups) - 1;
return true;
}
if (!ExprResolveGroup(info->ctx, arrayNdx, ndx_rtrn)) {
log_err(info->ctx,
"Illegal group index for %s of key %s\n"
"Definition with non-integer array index ignored\n",
name, KeyInfoText(info, keyi));
return false;
}
(*ndx_rtrn)--;
if (*ndx_rtrn >= darray_size(keyi->groups))
darray_resize0(keyi->groups, *ndx_rtrn + 1);
return true;
}
static bool
AddSymbolsToKey(SymbolsInfo *info, KeyInfo *keyi, ExprDef *arrayNdx,
ExprDef *value)
{
xkb_layout_index_t ndx;
GroupInfo *groupi;
xkb_level_index_t nLevels;
if (!GetGroupIndex(info, keyi, arrayNdx, SYMBOLS, &ndx))
return false;
groupi = &darray_item(keyi->groups, ndx);
if (value == NULL) {
groupi->defined |= GROUP_FIELD_SYMS;
return true;
}
if (value->expr.op != EXPR_KEYSYM_LIST) {
log_err(info->ctx,
"Expected a list of symbols, found %s; "
"Ignoring symbols for group %u of %s\n",
expr_op_type_to_string(value->expr.op), ndx + 1,
KeyInfoText(info, keyi));
return false;
}
if (groupi->defined & GROUP_FIELD_SYMS) {
log_err(info->ctx,
"Symbols for key %s, group %u already defined; "
"Ignoring duplicate definition\n",
KeyInfoText(info, keyi), ndx + 1);
return false;
}
nLevels = darray_size(value->keysym_list.symsMapIndex);
if (darray_size(groupi->levels) < nLevels)
darray_resize0(groupi->levels, nLevels);
groupi->defined |= GROUP_FIELD_SYMS;
for (xkb_level_index_t i = 0; i < nLevels; i++) {
unsigned int sym_index;
struct xkb_level *leveli = &darray_item(groupi->levels, i);
sym_index = darray_item(value->keysym_list.symsMapIndex, i);
leveli->num_syms = darray_item(value->keysym_list.symsNumEntries, i);
if (leveli->num_syms > 1)
leveli->u.syms = calloc(leveli->num_syms, sizeof(*leveli->u.syms));
for (unsigned j = 0; j < leveli->num_syms; j++) {
xkb_keysym_t keysym = darray_item(value->keysym_list.syms,
sym_index + j);
if (leveli->num_syms == 1) {
if (keysym == XKB_KEY_NoSymbol)
leveli->num_syms = 0;
else
leveli->u.sym = keysym;
}
else if (leveli->num_syms > 1) {
leveli->u.syms[j] = keysym;
}
}
}
return true;
}
static bool
AddActionsToKey(SymbolsInfo *info, KeyInfo *keyi, ExprDef *arrayNdx,
ExprDef *value)
{
xkb_layout_index_t ndx;
GroupInfo *groupi;
unsigned int nActs;
ExprDef *act;
if (!GetGroupIndex(info, keyi, arrayNdx, ACTIONS, &ndx))
return false;
groupi = &darray_item(keyi->groups, ndx);
if (value == NULL) {
groupi->defined |= GROUP_FIELD_ACTS;
return true;
}
if (value->expr.op != EXPR_ACTION_LIST) {
log_wsgo(info->ctx,
"Bad expression type (%d) for action list value; "
"Ignoring actions for group %u of %s\n",
value->expr.op, ndx, KeyInfoText(info, keyi));
return false;
}
if (groupi->defined & GROUP_FIELD_ACTS) {
log_wsgo(info->ctx,
"Actions for key %s, group %u already defined\n",
KeyInfoText(info, keyi), ndx);
return false;
}
nActs = 0;
for (act = value->actions.actions; act; act = (ExprDef *) act->common.next)
nActs++;
if (darray_size(groupi->levels) < nActs)
darray_resize0(groupi->levels, nActs);
groupi->defined |= GROUP_FIELD_ACTS;
act = value->actions.actions;
for (unsigned i = 0; i < nActs; i++) {
union xkb_action *toAct = &darray_item(groupi->levels, i).action;
if (!HandleActionDef(info->ctx, info->actions, &info->mods, act, toAct))
log_err(info->ctx,
"Illegal action definition for %s; "
"Action for group %u/level %u ignored\n",
KeyInfoText(info, keyi), ndx + 1, i + 1);
act = (ExprDef *) act->common.next;
}
return true;
}
static const LookupEntry repeatEntries[] = {
{ "true", KEY_REPEAT_YES },
{ "yes", KEY_REPEAT_YES },
{ "on", KEY_REPEAT_YES },
{ "false", KEY_REPEAT_NO },
{ "no", KEY_REPEAT_NO },
{ "off", KEY_REPEAT_NO },
{ "default", KEY_REPEAT_UNDEFINED },
{ NULL, 0 }
};
static bool
SetSymbolsField(SymbolsInfo *info, KeyInfo *keyi, const char *field,
ExprDef *arrayNdx, ExprDef *value)
{
if (istreq(field, "type")) {
xkb_layout_index_t ndx;
xkb_atom_t val;
if (!ExprResolveString(info->ctx, value, &val)) {
log_err(info->ctx,
"The type field of a key symbol map must be a string; "
"Ignoring illegal type definition\n");
return false;
}
if (!arrayNdx) {
keyi->default_type = val;
keyi->defined |= KEY_FIELD_DEFAULT_TYPE;
}
else if (!ExprResolveGroup(info->ctx, arrayNdx, &ndx)) {
log_err(info->ctx,
"Illegal group index for type of key %s; "
"Definition with non-integer array index ignored\n",
KeyInfoText(info, keyi));
return false;
}
else {
ndx--;
if (ndx >= darray_size(keyi->groups))
darray_resize0(keyi->groups, ndx + 1);
darray_item(keyi->groups, ndx).type = val;
darray_item(keyi->groups, ndx).defined |= GROUP_FIELD_TYPE;
}
}
else if (istreq(field, "symbols")) {
return AddSymbolsToKey(info, keyi, arrayNdx, value);
}
else if (istreq(field, "actions")) {
return AddActionsToKey(info, keyi, arrayNdx, value);
}
else if (istreq(field, "vmods") ||
istreq(field, "virtualmods") ||
istreq(field, "virtualmodifiers")) {
xkb_mod_mask_t mask;
if (!ExprResolveModMask(info->ctx, value, MOD_VIRT, &info->mods,
&mask)) {
log_err(info->ctx,
"Expected a virtual modifier mask, found %s; "
"Ignoring virtual modifiers definition for key %s\n",
expr_op_type_to_string(value->expr.op),
KeyInfoText(info, keyi));
return false;
}
keyi->vmodmap = mask;
keyi->defined |= KEY_FIELD_VMODMAP;
}
else if (istreq(field, "locking") ||
istreq(field, "lock") ||
istreq(field, "locks")) {
log_vrb(info->ctx, 1,
"Key behaviors not supported; "
"Ignoring locking specification for key %s\n",
KeyInfoText(info, keyi));
}
else if (istreq(field, "radiogroup") ||
istreq(field, "permanentradiogroup") ||
istreq(field, "allownone")) {
log_vrb(info->ctx, 1,
"Radio groups not supported; "
"Ignoring radio group specification for key %s\n",
KeyInfoText(info, keyi));
}
else if (istreq_prefix("overlay", field) ||
istreq_prefix("permanentoverlay", field)) {
log_vrb(info->ctx, 1,
"Overlays not supported; "
"Ignoring overlay specification for key %s\n",
KeyInfoText(info, keyi));
}
else if (istreq(field, "repeating") ||
istreq(field, "repeats") ||
istreq(field, "repeat")) {
unsigned int val;
if (!ExprResolveEnum(info->ctx, value, &val, repeatEntries)) {
log_err(info->ctx,
"Illegal repeat setting for %s; "
"Non-boolean repeat setting ignored\n",
KeyInfoText(info, keyi));
return false;
}
keyi->repeat = val;
keyi->defined |= KEY_FIELD_REPEAT;
}
else if (istreq(field, "groupswrap") ||
istreq(field, "wrapgroups")) {
bool set;
if (!ExprResolveBoolean(info->ctx, value, &set)) {
log_err(info->ctx,
"Illegal groupsWrap setting for %s; "
"Non-boolean value ignored\n",
KeyInfoText(info, keyi));
return false;
}
keyi->out_of_range_group_action = (set ? RANGE_WRAP : RANGE_SATURATE);
keyi->defined |= KEY_FIELD_GROUPINFO;
}
else if (istreq(field, "groupsclamp") ||
istreq(field, "clampgroups")) {
bool set;
if (!ExprResolveBoolean(info->ctx, value, &set)) {
log_err(info->ctx,
"Illegal groupsClamp setting for %s; "
"Non-boolean value ignored\n",
KeyInfoText(info, keyi));
return false;
}
keyi->out_of_range_group_action = (set ? RANGE_SATURATE : RANGE_WRAP);
keyi->defined |= KEY_FIELD_GROUPINFO;
}
else if (istreq(field, "groupsredirect") ||
istreq(field, "redirectgroups")) {
xkb_layout_index_t grp;
if (!ExprResolveGroup(info->ctx, value, &grp)) {
log_err(info->ctx,
"Illegal group index for redirect of key %s; "
"Definition with non-integer group ignored\n",
KeyInfoText(info, keyi));
return false;
}
keyi->out_of_range_group_action = RANGE_REDIRECT;
keyi->out_of_range_group_number = grp - 1;
keyi->defined |= KEY_FIELD_GROUPINFO;
}
else {
log_err(info->ctx,
"Unknown field %s in a symbol interpretation; "
"Definition ignored\n",
field);
return false;
}
return true;
}
static bool
SetGroupName(SymbolsInfo *info, ExprDef *arrayNdx, ExprDef *value)
{
xkb_layout_index_t group, group_to_use;
xkb_atom_t name;
if (!arrayNdx) {
log_vrb(info->ctx, 1,
"You must specify an index when specifying a group name; "
"Group name definition without array subscript ignored\n");
return false;
}
if (!ExprResolveGroup(info->ctx, arrayNdx, &group)) {
log_err(info->ctx,
"Illegal index in group name definition; "
"Definition with non-integer array index ignored\n");
return false;
}
if (!ExprResolveString(info->ctx, value, &name)) {
log_err(info->ctx,
"Group name must be a string; "
"Illegal name for group %d ignored\n", group);
return false;
}
if (info->explicit_group == XKB_LAYOUT_INVALID) {
group_to_use = group - 1;
}
else if (group - 1 == 0) {
group_to_use = info->explicit_group;
}
else {
log_warn(info->ctx,
"An explicit group was specified for the '%s' map, "
"but it provides a name for a group other than Group1 (%d); "
"Ignoring group name '%s'\n",
info->name, group,
xkb_atom_text(info->ctx, name));
return false;
}
if (group_to_use >= darray_size(info->group_names))
darray_resize0(info->group_names, group_to_use + 1);
darray_item(info->group_names, group_to_use) = name;
return true;
}
static bool
HandleGlobalVar(SymbolsInfo *info, VarDef *stmt)
{
const char *elem, *field;
ExprDef *arrayNdx;
bool ret;
if (!ExprResolveLhs(info->ctx, stmt->name, &elem, &field, &arrayNdx))
return false;
if (elem && istreq(elem, "key")) {
ret = SetSymbolsField(info, &info->default_key, field, arrayNdx,
stmt->value);
}
else if (!elem && (istreq(field, "name") ||
istreq(field, "groupname"))) {
ret = SetGroupName(info, arrayNdx, stmt->value);
}
else if (!elem && (istreq(field, "groupswrap") ||
istreq(field, "wrapgroups"))) {
log_err(info->ctx,
"Global \"groupswrap\" not supported; Ignored\n");
ret = true;
}
else if (!elem && (istreq(field, "groupsclamp") ||
istreq(field, "clampgroups"))) {
log_err(info->ctx,
"Global \"groupsclamp\" not supported; Ignored\n");
ret = true;
}
else if (!elem && (istreq(field, "groupsredirect") ||
istreq(field, "redirectgroups"))) {
log_err(info->ctx,
"Global \"groupsredirect\" not supported; Ignored\n");
ret = true;
}
else if (!elem && istreq(field, "allownone")) {
log_err(info->ctx,
"Radio groups not supported; "
"Ignoring \"allownone\" specification\n");
ret = true;
}
else {
ret = SetActionField(info->ctx, info->actions, &info->mods,
elem, field, arrayNdx, stmt->value);
}
return ret;
}
static bool
HandleSymbolsBody(SymbolsInfo *info, VarDef *def, KeyInfo *keyi)
{
bool ok = true;
const char *elem, *field;
ExprDef *arrayNdx;
for (; def; def = (VarDef *) def->common.next) {
if (def->name && def->name->expr.op == EXPR_FIELD_REF) {
log_err(info->ctx,
"Cannot set a global default value from within a key statement; "
"Move statements to the global file scope\n");
continue;
}
if (!def->name) {
if (!def->value || def->value->expr.op == EXPR_KEYSYM_LIST)
field = "symbols";
else
field = "actions";
arrayNdx = NULL;
}
else {
ok = ExprResolveLhs(info->ctx, def->name, &elem, &field,
&arrayNdx);
}
if (ok)
ok = SetSymbolsField(info, keyi, field, arrayNdx, def->value);
}
return ok;
}
static bool
SetExplicitGroup(SymbolsInfo *info, KeyInfo *keyi)
{
xkb_layout_index_t i;
GroupInfo *groupi;
bool warn = false;
if (info->explicit_group == XKB_LAYOUT_INVALID)
return true;
darray_enumerate_from(i, groupi, keyi->groups, 1) {
if (groupi->defined) {
warn = true;
ClearGroupInfo(groupi);
InitGroupInfo(groupi);
}
}
if (warn)
log_warn(info->ctx,
"For the map %s an explicit group specified, "
"but key %s has more than one group defined; "
"All groups except first one will be ignored\n",
info->name, KeyInfoText(info, keyi));
darray_resize0(keyi->groups, info->explicit_group + 1);
if (info->explicit_group > 0) {
darray_item(keyi->groups, info->explicit_group) =
darray_item(keyi->groups, 0);
InitGroupInfo(&darray_item(keyi->groups, 0));
}
return true;
}
static bool
HandleSymbolsDef(SymbolsInfo *info, SymbolsDef *stmt)
{
KeyInfo keyi;
keyi = info->default_key;
darray_init(keyi.groups);
darray_copy(keyi.groups, info->default_key.groups);
for (xkb_layout_index_t i = 0; i < darray_size(keyi.groups); i++)
CopyGroupInfo(&darray_item(keyi.groups, i),
&darray_item(info->default_key.groups, i));
keyi.merge = stmt->merge;
keyi.name = stmt->keyName;
if (!HandleSymbolsBody(info, stmt->symbols, &keyi)) {
info->errorCount++;
return false;
}
if (!SetExplicitGroup(info, &keyi)) {
info->errorCount++;
return false;
}
if (!AddKeySymbols(info, &keyi, true)) {
info->errorCount++;
return false;
}
return true;
}
static bool
HandleModMapDef(SymbolsInfo *info, ModMapDef *def)
{
ModMapEntry tmp;
xkb_mod_index_t ndx;
bool ok;
struct xkb_context *ctx = info->ctx;
ndx = XkbModNameToIndex(&info->mods, def->modifier, MOD_REAL);
if (ndx == XKB_MOD_INVALID) {
log_err(info->ctx,
"Illegal modifier map definition; "
"Ignoring map for non-modifier \"%s\"\n",
xkb_atom_text(ctx, def->modifier));
return false;
}
ok = true;
tmp.modifier = ndx;
tmp.merge = def->merge;
for (ExprDef *key = def->keys; key; key = (ExprDef *) key->common.next) {
xkb_keysym_t sym;
if (key->expr.op == EXPR_VALUE &&
key->expr.value_type == EXPR_TYPE_KEYNAME) {
tmp.haveSymbol = false;
tmp.u.keyName = key->key_name.key_name;
}
else if (ExprResolveKeySym(ctx, key, &sym)) {
tmp.haveSymbol = true;
tmp.u.keySym = sym;
}
else {
log_err(info->ctx,
"Modmap entries may contain only key names or keysyms; "
"Illegal definition for %s modifier ignored\n",
ModIndexText(info->ctx, &info->mods, tmp.modifier));
continue;
}
ok = AddModMapEntry(info, &tmp) && ok;
}
return ok;
}
static void
HandleSymbolsFile(SymbolsInfo *info, XkbFile *file, enum merge_mode merge)
{
bool ok;
free(info->name);
info->name = strdup_safe(file->name);
for (ParseCommon *stmt = file->defs; stmt; stmt = stmt->next) {
switch (stmt->type) {
case STMT_INCLUDE:
ok = HandleIncludeSymbols(info, (IncludeStmt *) stmt);
break;
case STMT_SYMBOLS:
ok = HandleSymbolsDef(info, (SymbolsDef *) stmt);
break;
case STMT_VAR:
ok = HandleGlobalVar(info, (VarDef *) stmt);
break;
case STMT_VMOD:
ok = HandleVModDef(info->ctx, &info->mods, (VModDef *) stmt, merge);
break;
case STMT_MODMAP:
ok = HandleModMapDef(info, (ModMapDef *) stmt);
break;
default:
log_err(info->ctx,
"Symbols files may not include other types; "
"Ignoring %s\n", stmt_type_to_string(stmt->type));
ok = false;
break;
}
if (!ok)
info->errorCount++;
if (info->errorCount > 10) {
log_err(info->ctx, "Abandoning symbols file \"%s\"\n",
file->name);
break;
}
}
}
/**
* Given a keysym @sym, return a key which generates it, or NULL.
* This is used for example in a modifier map definition, such as:
* modifier_map Lock { Caps_Lock };
* where we want to add the Lock modifier to the modmap of the key
* which matches the keysym Caps_Lock.
* Since there can be many keys which generates the keysym, the key
* is chosen first by lowest group in which the keysym appears, than
* by lowest level and than by lowest key code.
*/
static struct xkb_key *
FindKeyForSymbol(struct xkb_keymap *keymap, xkb_keysym_t sym)
{
struct xkb_key *key;
xkb_layout_index_t group;
bool got_one_group, got_one_level;
group = 0;
do {
xkb_level_index_t level = 0;
got_one_group = false;
do {
got_one_level = false;
xkb_keys_foreach(key, keymap) {
if (group < key->num_groups &&
level < XkbKeyNumLevels(key, group)) {
got_one_group = got_one_level = true;
if (key->groups[group].levels[level].num_syms == 1 &&
key->groups[group].levels[level].u.sym == sym)
return key;
}
}
level++;
} while (got_one_level);
group++;
} while (got_one_group);
return NULL;
}
/*
* Find an appropriate type for a group and return its name.
*
* Simple recipe:
* - ONE_LEVEL for width 0/1
* - ALPHABETIC for 2 shift levels, with lower/upercase keysyms
* - KEYPAD for keypad keys.
* - TWO_LEVEL for other 2 shift level keys.
* and the same for four level keys.
*
* FIXME: Decide how to handle multiple-syms-per-level, and do it.
*/
static xkb_atom_t
FindAutomaticType(struct xkb_context *ctx, GroupInfo *groupi)
{
xkb_keysym_t sym0, sym1;
const xkb_level_index_t width = darray_size(groupi->levels);
#define GET_SYM(level) \
(darray_item(groupi->levels, level).num_syms == 0 ? \
XKB_KEY_NoSymbol : \
darray_item(groupi->levels, level).num_syms == 1 ? \
darray_item(groupi->levels, level).u.sym : \
/* num_syms > 1 */ \
darray_item(groupi->levels, level).u.syms[0])
if (width == 1 || width <= 0)
return xkb_atom_intern_literal(ctx, "ONE_LEVEL");
sym0 = GET_SYM(0);
sym1 = GET_SYM(1);
if (width == 2) {
if (xkb_keysym_is_lower(sym0) && xkb_keysym_is_upper(sym1))
return xkb_atom_intern_literal(ctx, "ALPHABETIC");
if (xkb_keysym_is_keypad(sym0) || xkb_keysym_is_keypad(sym1))
return xkb_atom_intern_literal(ctx, "KEYPAD");
return xkb_atom_intern_literal(ctx, "TWO_LEVEL");
}
if (width <= 4) {
if (xkb_keysym_is_lower(sym0) && xkb_keysym_is_upper(sym1)) {
xkb_keysym_t sym2, sym3;
sym2 = GET_SYM(2);
sym3 = (width == 4 ? GET_SYM(3) : XKB_KEY_NoSymbol);
if (xkb_keysym_is_lower(sym2) && xkb_keysym_is_upper(sym3))
return xkb_atom_intern_literal(ctx, "FOUR_LEVEL_ALPHABETIC");
return xkb_atom_intern_literal(ctx, "FOUR_LEVEL_SEMIALPHABETIC");
}
if (xkb_keysym_is_keypad(sym0) || xkb_keysym_is_keypad(sym1))
return xkb_atom_intern_literal(ctx, "FOUR_LEVEL_KEYPAD");
return xkb_atom_intern_literal(ctx, "FOUR_LEVEL");
}
return XKB_ATOM_NONE;
#undef GET_SYM
}
static const struct xkb_key_type *
FindTypeForGroup(struct xkb_keymap *keymap, KeyInfo *keyi,
xkb_layout_index_t group, bool *explicit_type)
{
unsigned int i;
GroupInfo *groupi = &darray_item(keyi->groups, group);
xkb_atom_t type_name = groupi->type;
*explicit_type = true;
if (type_name == XKB_ATOM_NONE) {
if (keyi->default_type != XKB_ATOM_NONE) {
type_name = keyi->default_type;
}
else {
type_name = FindAutomaticType(keymap->ctx, groupi);
if (type_name != XKB_ATOM_NONE)
*explicit_type = false;
}
}
if (type_name == XKB_ATOM_NONE) {
log_warn(keymap->ctx,
"Couldn't find an automatic type for key '%s' group %d with %lu levels; "
"Using the default type\n",
KeyNameText(keymap->ctx, keyi->name), group + 1,
(unsigned long) darray_size(groupi->levels));
goto use_default;
}
for (i = 0; i < keymap->num_types; i++)
if (keymap->types[i].name == type_name)
break;
if (i >= keymap->num_types) {
log_warn(keymap->ctx,
"The type \"%s\" for key '%s' group %d was not previously defined; "
"Using the default type\n",
xkb_atom_text(keymap->ctx, type_name),
KeyNameText(keymap->ctx, keyi->name), group + 1);
goto use_default;
}
return &keymap->types[i];
use_default:
/*
* Index 0 is guaranteed to contain something, usually
* ONE_LEVEL or at least some default one-level type.
*/
return &keymap->types[0];
}
static bool
CopySymbolsDefToKeymap(struct xkb_keymap *keymap, SymbolsInfo *info,
KeyInfo *keyi)
{
struct xkb_key *key;
GroupInfo *groupi;
const GroupInfo *group0;
xkb_layout_index_t i;
/*
* The name is guaranteed to be real and not an alias (see
* AddKeySymbols), so 'false' is safe here.
*/
key = XkbKeyByName(keymap, keyi->name, false);
if (!key) {
log_vrb(info->ctx, 5,
"Key %s not found in keycodes; Symbols ignored\n",
KeyInfoText(info, keyi));
return false;
}
/* Find the range of groups we need. */
key->num_groups = 0;
darray_enumerate(i, groupi, keyi->groups)
if (groupi->defined)
key->num_groups = i + 1;
if (key->num_groups <= 0)
return false; /* WSGO */
darray_resize(keyi->groups, key->num_groups);
/*
* If there are empty groups between non-empty ones, fill them with data
* from the first group.
* We can make a wrong assumption here. But leaving gaps is worse.
*/
group0 = &darray_item(keyi->groups, 0);
darray_foreach_from(groupi, keyi->groups, 1) {
if (groupi->defined)
continue;
CopyGroupInfo(groupi, group0);
}
key->groups = calloc(key->num_groups, sizeof(*key->groups));
/* Find and assign the groups' types in the keymap. */
darray_enumerate(i, groupi, keyi->groups) {
const struct xkb_key_type *type;
bool explicit_type;
type = FindTypeForGroup(keymap, keyi, i, &explicit_type);
/* Always have as many levels as the type specifies. */
if (type->num_levels < darray_size(groupi->levels)) {
struct xkb_level *leveli;
log_vrb(info->ctx, 1,
"Type \"%s\" has %d levels, but %s has %d levels; "
"Ignoring extra symbols\n",
xkb_atom_text(keymap->ctx, type->name), type->num_levels,
KeyInfoText(info, keyi),
(int) darray_size(groupi->levels));
darray_foreach_from(leveli, groupi->levels, type->num_levels)
ClearLevelInfo(leveli);
}
darray_resize0(groupi->levels, type->num_levels);
key->groups[i].explicit_type = explicit_type;
key->groups[i].type = type;
}
/* Copy levels. */
darray_enumerate(i, groupi, keyi->groups)
darray_steal(groupi->levels, &key->groups[i].levels, NULL);
key->out_of_range_group_number = keyi->out_of_range_group_number;
key->out_of_range_group_action = keyi->out_of_range_group_action;
if (keyi->defined & KEY_FIELD_VMODMAP) {
key->vmodmap = keyi->vmodmap;
key->explicit |= EXPLICIT_VMODMAP;
}
if (keyi->repeat != KEY_REPEAT_UNDEFINED) {
key->repeats = (keyi->repeat == KEY_REPEAT_YES);
key->explicit |= EXPLICIT_REPEAT;
}
darray_foreach(groupi, keyi->groups) {
if (groupi->defined & GROUP_FIELD_ACTS) {
key->explicit |= EXPLICIT_INTERP;
break;
}
}
return true;
}
static bool
CopyModMapDefToKeymap(struct xkb_keymap *keymap, SymbolsInfo *info,
ModMapEntry *entry)
{
struct xkb_key *key;
if (!entry->haveSymbol) {
key = XkbKeyByName(keymap, entry->u.keyName, true);
if (!key) {
log_vrb(info->ctx, 5,
"Key %s not found in keycodes; "
"Modifier map entry for %s not updated\n",
KeyNameText(info->ctx, entry->u.keyName),
ModIndexText(info->ctx, &info->mods, entry->modifier));
return false;
}
}
else {
key = FindKeyForSymbol(keymap, entry->u.keySym);
if (!key) {
log_vrb(info->ctx, 5,
"Key \"%s\" not found in symbol map; "
"Modifier map entry for %s not updated\n",
KeysymText(info->ctx, entry->u.keySym),
ModIndexText(info->ctx, &info->mods, entry->modifier));
return false;
}
}
key->modmap |= (1u << entry->modifier);
return true;
}
static bool
CopySymbolsToKeymap(struct xkb_keymap *keymap, SymbolsInfo *info)
{
KeyInfo *keyi;
ModMapEntry *mm;
keymap->symbols_section_name = strdup_safe(info->name);
XkbEscapeMapName(keymap->symbols_section_name);
keymap->mods = info->mods;
darray_steal(info->group_names,
&keymap->group_names, &keymap->num_group_names);
darray_foreach(keyi, info->keys)
if (!CopySymbolsDefToKeymap(keymap, info, keyi))
info->errorCount++;
if (xkb_context_get_log_verbosity(keymap->ctx) > 3) {
struct xkb_key *key;
xkb_keys_foreach(key, keymap) {
if (key->name == XKB_ATOM_NONE)
continue;
if (key->num_groups < 1)
log_info(info->ctx,
"No symbols defined for %s\n",
KeyNameText(info->ctx, key->name));
}
}
darray_foreach(mm, info->modmaps)
if (!CopyModMapDefToKeymap(keymap, info, mm))
info->errorCount++;
/* XXX: If we don't ignore errorCount, things break. */
return true;
}
bool
CompileSymbols(XkbFile *file, struct xkb_keymap *keymap,
enum merge_mode merge)
{
SymbolsInfo info;
ActionsInfo *actions;
actions = NewActionsInfo();
if (!actions)
return false;
InitSymbolsInfo(&info, keymap, actions, &keymap->mods);
info.default_key.merge = merge;
HandleSymbolsFile(&info, file, merge);
if (info.errorCount != 0)
goto err_info;
if (!CopySymbolsToKeymap(keymap, &info))
goto err_info;
ClearSymbolsInfo(&info);
FreeActionsInfo(actions);
return true;
err_info:
FreeActionsInfo(actions);
ClearSymbolsInfo(&info);
return false;
}