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 /*
  * Copyright © 2020 Red Hat, Inc.
  *
  * 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.
  */
 
 
 #ifndef _XKBREGISTRY_H_
 #define _XKBREGISTRY_H_
 
 #include <stdarg.h>
 #include <stdbool.h>
 
 /**
  * @file
  * @brief Query for available RMLVO
  *
  */
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
 /**
  * @defgroup registry Query for available RMLVO
  *
  * The libxkbregistry API to query for available rules, models, layouts,
  * variants and options (RMLVO). libxkbregistry is a separate library to
  * libxkbcommon.
  *
  * This library is the replacement for clients currently parsing evdev.xml
  * directly. The library is intended to provide easy access to the set of
  * **possible** MLVO configurations for a given ruleset. It is not a library to
  * apply these configurations, merely to enumerate them. The intended users of
  * this library are the configuration UIs that allow a user to select their
  * keyboard layout of choice.
  *
  * @{
  */
 
 /**
  * @struct rxkb_context
  *
  * Opaque top level library context object.
  *
  * The context contains general library state, like include paths and parsed
  * data. Objects are created in a specific context, and multiple contexts
  * may coexist simultaneously. Objects from different contexts are
  * completely separated and do not share any memory or state.
  */
 struct rxkb_context;
 
 /**
  * @struct rxkb_model
  *
  * Opaque struct representing an XKB model.
  */
 struct rxkb_model;
 
 /**
  * @struct rxkb_layout
  *
  * Opaque struct representing an XKB layout, including an optional variant.
  * Where the variant is NULL, the layout is the base layout.
  *
  * For example, "us" is the base layout, "us(intl)" is the "intl" variant of the
  * layout "us".
  */
 struct rxkb_layout;
 
 /**
  * @struct rxkb_option_group
  *
  * Opaque struct representing an option group. Option groups divide the
  * individual options into logical groups. Their main purpose is to indicate
  * whether some options are mutually exclusive or not.
  */
 struct rxkb_option_group;
 
 /**
  * @struct rxkb_option
  *
  * Opaque struct representing an XKB option. Options are grouped inside an @ref
  * rxkb_option_group.
  */
 struct rxkb_option;
 
 /**
  *
  * @struct rxkb_iso639_code
  *
  * Opaque struct representing an ISO 639-3 code (e.g. "eng", "fra"). There
  * is no guarantee that two identical ISO codes share the same struct. You
  * must not rely on the pointer value of this struct.
  *
  * See https://iso639-3.sil.org/code_tables/639/data for a list of codes.
  */
 struct rxkb_iso639_code;
 
 /**
  *
  * @struct rxkb_iso3166_code
  *
  * Opaque struct representing an ISO 3166 Alpha 2 code (e.g. "US", "FR").
  * There is no guarantee that two identical ISO codes share the same struct.
  * You must not rely on the pointer value of this struct.
  *
  * See https://en.wikipedia.org/wiki/List_of_ISO_3166_country_codes for a list
  * of codes.
  */
 struct rxkb_iso3166_code;
 
 /**
  * Describes the popularity of an item. Historically, some highly specialized or
  * experimental definitions are excluded from the default list and shipped in
  * separate files. If these extra definitions are loaded (see @ref
  * RXKB_CONTEXT_LOAD_EXOTIC_RULES), the popularity of the item is set
  * accordingly.
  *
  * If the exotic items are not loaded, all items will have the standard
  * popularity.
  */
 enum rxkb_popularity {
     RXKB_POPULARITY_STANDARD = 1,
     RXKB_POPULARITY_EXOTIC,
 };
 
 /**
  * Flags for context creation.
  */
 enum rxkb_context_flags {
     RXKB_CONTEXT_NO_FLAGS = 0,
     /**
      * Skip the default include paths. This requires the caller to call
      * rxkb_context_include_path_append() or
      * rxkb_context_include_path_append_default().
      */
     RXKB_CONTEXT_NO_DEFAULT_INCLUDES = (1 << 0),
     /**
      * Load the extra items that are considered too exotic for the default list.
      *
      * For historical reasons, xkeyboard-config ships those exotic rules in a
      * separate file (e.g. `evdev.extras.xml`). Where the exotic rules are
      * requested, libxkbregistry will look for and load `$ruleset.extras.xml`
      * in the include paths, see rxkb_context_include_path_append() for details
      * on the lookup behavior.
      */
     RXKB_CONTEXT_LOAD_EXOTIC_RULES = (1 << 1),
     /**
      * Disable the use of secure_getenv for this context, so that privileged
      * processes can use environment variables. Client uses at their own risk.
      *
      * @since 1.5.0
      */
     RXKB_CONTEXT_NO_SECURE_GETENV = (1 << 2)
 };
 
 /**
  * Create a new xkb registry context.
  *
  * The context has an initial refcount of 1. Use rxkb_context_unref() to release
  * memory associated with this context.
  *
  * Creating a context does not parse the files yet, use
  * rxkb_context_parse().
  *
  * @param flags Flags affecting context behavior
  * @return A new xkb registry context or NULL on failure
  */
 struct rxkb_context *
 rxkb_context_new(enum rxkb_context_flags flags);
 
 /** Specifies a logging level. */
 enum rxkb_log_level {
     RXKB_LOG_LEVEL_CRITICAL = 10, /**< Log critical internal errors only. */
     RXKB_LOG_LEVEL_ERROR = 20,    /**< Log all errors. */
     RXKB_LOG_LEVEL_WARNING = 30,  /**< Log warnings and errors. */
     RXKB_LOG_LEVEL_INFO = 40,     /**< Log information, warnings, and errors. */
     RXKB_LOG_LEVEL_DEBUG = 50     /**< Log everything. */
 };
 
 /**
  * Set the current logging level.
  *
  * @param ctx     The context in which to set the logging level.
  * @param level   The logging level to use.  Only messages from this level
  * and below will be logged.
  *
  * The default level is RXKB_LOG_LEVEL_ERROR.  The environment variable
  * RXKB_LOG_LEVEL, if set at the time the context was created, overrides the
  * default value.  It may be specified as a level number or name.
  */
 void
 rxkb_context_set_log_level(struct rxkb_context *ctx,
                            enum rxkb_log_level level);
 
 /**
  * Get the current logging level.
  */
 enum rxkb_log_level
 rxkb_context_get_log_level(struct rxkb_context *ctx);
 
 /**
  * Set a custom function to handle logging messages.
  *
  * @param ctx     The context in which to use the set logging function.
  * @param log_fn  The function that will be called for logging messages.
  * Passing NULL restores the default function, which logs to stderr.
  *
  * By default, log messages from this library are printed to stderr.  This
  * function allows you to replace the default behavior with a custom
  * handler.  The handler is only called with messages which match the
  * current logging level and verbosity settings for the context.
  * level is the logging level of the message.  @a format and @a args are
  * the same as in the vprintf(3) function.
  *
  * You may use rxkb_context_set_user_data() on the context, and then call
  * rxkb_context_get_user_data() from within the logging function to provide
  * it with additional private context.
  */
 void
 rxkb_context_set_log_fn(struct rxkb_context *ctx,
                         void (*log_fn)(struct rxkb_context *ctx,
                                        enum rxkb_log_level level,
                                        const char *format, va_list args));
 
 
 /**
  * Parse the given ruleset. This can only be called once per context and once
  * parsed the data in the context is considered constant and will never
  * change.
  *
  * This function parses all files with the given ruleset name. See
  * rxkb_context_include_path_append() for details.
  *
  * If this function returns false, libxkbregistry failed to parse the xml files.
  * This is usually caused by invalid files on the host and should be debugged by
  * the host's administrator using external tools. Callers should reduce the
  * include paths to known good paths and/or fall back to a default RMLVO set.
  *
  * If this function returns false, the context should be be considered dead and
  * must be released with rxkb_context_unref().
  *
  * @param ctx The xkb registry context
  * @param ruleset The ruleset to parse, e.g. "evdev"
  * @return true on success or false on failure
  */
 bool
 rxkb_context_parse(struct rxkb_context *ctx, const char *ruleset);
 
 /**
  * Parse the default ruleset as configured at build time. See
  * rxkb_context_parse() for details.
  */
 bool
 rxkb_context_parse_default_ruleset(struct rxkb_context *ctx);
 
 /**
  * Increases the refcount of this object by one and returns the object.
  *
  * @param ctx The xkb registry context
  * @return The passed in object
  */
 struct rxkb_context*
 rxkb_context_ref(struct rxkb_context *ctx);
 
 /**
  * Decreases the refcount of this object by one. Where the refcount of an
  * object hits zero, associated resources will be freed.
  *
  * @param ctx The xkb registry context
  * @return always NULL
  */
 struct rxkb_context*
 rxkb_context_unref(struct rxkb_context *ctx);
 
 /**
  * Assign user-specific data. libxkbregistry will not look at or modify the
  * data, it will merely return the same pointer in
  * rxkb_context_get_user_data().
  *
  * @param ctx The xkb registry context
  * @param user_data User-specific data pointer
  */
 void
 rxkb_context_set_user_data(struct rxkb_context *ctx, void *user_data);
 
 /**
  * Return the pointer passed into rxkb_context_get_user_data().
  *
  * @param ctx The xkb registry context
  * @return User-specific data pointer
  */
 void *
 rxkb_context_get_user_data(struct rxkb_context *ctx);
 
 /**
  * Append a new entry to the context's include path.
  *
  * The include path handling is optimized for the most common use-case: a set of
  * system files that provide a complete set of MLVO and some
  * custom MLVO provided by a user **in addition** to the system set.
  *
  * The include paths should be given so that the least complete path is
  * specified first and the most complete path is appended last. For example:
  *
  * @code
  *    ctx = rxkb_context_new(RXKB_CONTEXT_NO_DEFAULT_INCLUDES);
  *    rxkb_context_include_path_append(ctx, "/home/user/.config/xkb");
  *    rxkb_context_include_path_append(ctx, "/usr/share/X11/xkb");
  *    rxkb_context_parse(ctx, "evdev");
  * @endcode
  *
  * The above example reflects the default behavior unless @ref
  * RXKB_CONTEXT_NO_DEFAULT_INCLUDES is provided.
  *
  * Loading of the files is in **reverse order**, i.e. the last path appended is
  * loaded first - in this case the ``/usr/share/X11/xkb`` path.
  * Any models, layouts, variants and options defined in the "evdev" ruleset
  * are loaded into the context. Then, any RMLVO found in the "evdev" ruleset of
  * the user's path (``/home/user/.config/xkb`` in this example) are **appended**
  * to the existing set.
  *
  * Note that data from previously loaded include paths is never overwritten,
  * only appended to. It is not not possible to change the system-provided data,
  * only to append new models, layouts, variants and options to it.
  *
  * In other words, to define a new variant of the "us" layout called "banana",
  * the following XML is sufficient.
  *
  * @verbatim
  * <xkbConfigRegistry version="1.1">
  * <layoutList>
  *   <layout>
  *     <configItem>
  *       <name>us</name>
  *     </configItem>
  *     <variantList>
  *       <variant>
  *         <configItem>
  *          <name>banana</name>
  *          <description>English (Banana)</description>
  *        </configItem>
  *      </variant>
  *    </layout>
  * </layoutList>
  * </xkbConfigRegistry>
  * @endverbatim
  *
  * The list of models, options and all other layouts (including "us" and its
  * variants) is taken from the system files. The resulting list of layouts will
  * thus have a "us" keyboard layout with the variant "banana" and all other
  * system-provided variants (dvorak, colemak, intl, etc.)
  *
  * This function must be called before rxkb_context_parse() or
  * rxkb_context_parse_default_ruleset().
  *
  * @returns true on success, or false if the include path could not be added
  * or is inaccessible.
  */
 bool
 rxkb_context_include_path_append(struct rxkb_context *ctx, const char *path);
 
 /**
  * Append the default include paths to the context's include path.
  * See rxkb_context_include_path_append() for details about the merge order.
  *
  * This function must be called before rxkb_context_parse() or
  * rxkb_context_parse_default_ruleset().
  *
  * @returns true on success, or false if the include path could not be added
  * or is inaccessible.
  */
 bool
 rxkb_context_include_path_append_default(struct rxkb_context *ctx);
 
 /**
  * Return the first model for this context. Use this to start iterating over
  * the models, followed by calls to rxkb_model_next(). Models are not sorted.
  *
  * The refcount of the returned model is not increased. Use rxkb_model_ref() if
  * you need to keep this struct outside the immediate scope.
  *
  * @return The first model in the model list.
  */
 struct rxkb_model *
 rxkb_model_first(struct rxkb_context *ctx);
 
 /**
  * Return the next model for this context. Returns NULL when no more models
  * are available.
  *
  * The refcount of the returned model is not increased. Use rxkb_model_ref() if
  * you need to keep this struct outside the immediate scope.
  *
  * @return the next model or NULL at the end of the list
  */
 struct rxkb_model *
 rxkb_model_next(struct rxkb_model *m);
 
 /**
  * Increase the refcount of the argument by one.
  *
  * @returns The argument passed in to this function.
  */
 struct rxkb_model *
 rxkb_model_ref(struct rxkb_model *m);
 
 /**
  * Decrease the refcount of the argument by one. When the refcount hits zero,
  * all memory associated with this struct is freed.
  *
  * @returns always NULL
  */
 struct rxkb_model *
 rxkb_model_unref(struct rxkb_model *m);
 
 /**
  * Return the name of this model. This is the value for M in RMLVO, to be used
  * with libxkbcommon.
  */
 const char *
 rxkb_model_get_name(struct rxkb_model *m);
 
 /**
  * Return a human-readable description of this model. This function may return
  * NULL.
  */
 const char *
 rxkb_model_get_description(struct rxkb_model *m);
 
 /**
  * Return the vendor name for this model. This function may return NULL.
  */
 const char *
 rxkb_model_get_vendor(struct rxkb_model *m);
 
 /**
  * Return the popularity for this model.
  */
 enum rxkb_popularity
 rxkb_model_get_popularity(struct rxkb_model *m);
 
 /**
  * Return the first layout for this context. Use this to start iterating over
  * the layouts, followed by calls to rxkb_layout_next(). Layouts are not sorted.
  *
  * The refcount of the returned layout is not increased. Use rxkb_layout_ref() if
  * you need to keep this struct outside the immediate scope.
  *
  * @return The first layout in the layout list.
  */
 struct rxkb_layout *
 rxkb_layout_first(struct rxkb_context *ctx);
 
 /**
  * Return the next layout for this context. Returns NULL when no more layouts
  * are available.
  *
  * The refcount of the returned layout is not increased. Use rxkb_layout_ref()
  * if you need to keep this struct outside the immediate scope.
  *
  * @return the next layout or NULL at the end of the list
  */
 struct rxkb_layout *
 rxkb_layout_next(struct rxkb_layout *l);
 
 /**
  * Increase the refcount of the argument by one.
  *
  * @returns The argument passed in to this function.
  */
 struct rxkb_layout *
 rxkb_layout_ref(struct rxkb_layout *l);
 
 /**
  * Decrease the refcount of the argument by one. When the refcount hits zero,
  * all memory associated with this struct is freed.
  *
  * @returns always NULL
  */
 struct rxkb_layout *
 rxkb_layout_unref(struct rxkb_layout *l);
 
 /**
  * Return the name of this layout. This is the value for L in RMLVO, to be used
  * with libxkbcommon.
  */
 const char *
 rxkb_layout_get_name(struct rxkb_layout *l);
 
 /**
  * Return the variant of this layout. This is the value for V in RMLVO, to be
  * used with libxkbcommon.
  *
  * A variant does not stand on its own, it always depends on the base layout.
  * e.g. there may be multiple variants called "intl" but there is only one
  * "us(intl)".
  *
  * Where the variant is NULL, the layout is the base layout (e.g. "us").
  */
 const char *
 rxkb_layout_get_variant(struct rxkb_layout *l);
 
 /**
  * Return a short (one-word) description of this layout. This function may
  * return NULL.
  */
 const char *
 rxkb_layout_get_brief(struct rxkb_layout *l);
 
 /**
  * Return a human-readable description of this layout. This function may return
  * NULL.
  */
 const char *
 rxkb_layout_get_description(struct rxkb_layout *l);
 
 /**
  * Return the popularity for this layout.
  */
 enum rxkb_popularity
 rxkb_layout_get_popularity(struct rxkb_layout *l);
 
 /**
  * Return the first option group for this context. Use this to start iterating
  * over the option groups, followed by calls to rxkb_option_group_next().
  * Option groups are not sorted.
  *
  * The refcount of the returned option group is not increased. Use
  * rxkb_option_group_ref() if you need to keep this struct outside the immediate
  * scope.
  *
  * @return The first option group in the option group list.
  */
 struct rxkb_option_group *
 rxkb_option_group_first(struct rxkb_context *ctx);
 
 /**
  * Return the next option group for this context. Returns NULL when no more
  * option groups are available.
  *
  * The refcount of the returned option group is not increased. Use
  * rxkb_option_group_ref() if you need to keep this struct outside the immediate
  * scope.
  *
  * @return the next option group or NULL at the end of the list
  */
 struct rxkb_option_group *
 rxkb_option_group_next(struct rxkb_option_group *g);
 
 /**
  * Increase the refcount of the argument by one.
  *
  * @returns The argument passed in to this function.
  */
 struct rxkb_option_group *
 rxkb_option_group_ref(struct rxkb_option_group *g);
 
 /**
  * Decrease the refcount of the argument by one. When the refcount hits zero,
  * all memory associated with this struct is freed.
  *
  * @returns always NULL
  */
 struct rxkb_option_group *
 rxkb_option_group_unref(struct rxkb_option_group *g);
 
 /**
  * Return the name of this option group. This is **not** the value for O in
  * RMLVO, the name can be used for internal sorting in the caller. This function
  * may return NULL.
  */
 const char *
 rxkb_option_group_get_name(struct rxkb_option_group *m);
 
 /**
  * Return a human-readable description of this option group. This function may
  * return NULL.
  */
 const char *
 rxkb_option_group_get_description(struct rxkb_option_group *m);
 
 /**
  * @return true if multiple options within this option group can be selected
  *              simultaneously, false if all options within this option group
  *              are mutually exclusive.
  */
 bool
 rxkb_option_group_allows_multiple(struct rxkb_option_group *g);
 
 /**
  * Return the popularity for this option group.
  */
 enum rxkb_popularity
 rxkb_option_group_get_popularity(struct rxkb_option_group *g);
 
 /**
  * Return the first option for this option group. Use this to start iterating
  * over the options, followed by calls to rxkb_option_next(). Options are not
  * sorted.
  *
  * The refcount of the returned option is not increased. Use rxkb_option_ref()
  * if you need to keep this struct outside the immediate scope.
  *
  * @return The first option in the option list.
  */
 struct rxkb_option *
 rxkb_option_first(struct rxkb_option_group *group);
 
 /**
  * Return the next option for this option group. Returns NULL when no more
  * options are available.
  *
  * The refcount of the returned options is not increased. Use rxkb_option_ref()
  * if you need to keep this struct outside the immediate scope.
  *
  * @returns The next option or NULL at the end of the list
  */
 struct rxkb_option *
 rxkb_option_next(struct rxkb_option *o);
 
 /**
  * Increase the refcount of the argument by one.
  *
  * @returns The argument passed in to this function.
  */
 struct rxkb_option *
 rxkb_option_ref(struct rxkb_option *o);
 
 /**
  * Decrease the refcount of the argument by one. When the refcount hits zero,
  * all memory associated with this struct is freed.
  *
  * @returns always NULL
  */
 struct rxkb_option *
 rxkb_option_unref(struct rxkb_option *o);
 
 /**
  * Return the name of this option. This is the value for O in RMLVO, to be used
  * with libxkbcommon.
  */
 const char *
 rxkb_option_get_name(struct rxkb_option *o);
 
 /**
  * Return a short (one-word) description of this option. This function may
  * return NULL.
  */
 const char *
 rxkb_option_get_brief(struct rxkb_option *o);
 
 /**
  * Return a human-readable description of this option. This function may return
  * NULL.
  */
 const char *
 rxkb_option_get_description(struct rxkb_option *o);
 
 /**
  * Return the popularity for this option.
  */
 enum rxkb_popularity
 rxkb_option_get_popularity(struct rxkb_option *o);
 
 /**
  * Increase the refcount of the argument by one.
  *
  * @returns The argument passed in to this function.
  */
 struct rxkb_iso639_code *
 rxkb_iso639_code_ref(struct rxkb_iso639_code *iso639);
 
 /**
  * Decrease the refcount of the argument by one. When the refcount hits zero,
  * all memory associated with this struct is freed.
  *
  * @returns always NULL
  */
 struct rxkb_iso639_code *
 rxkb_iso639_code_unref(struct rxkb_iso639_code *iso639);
 
 /**
  * Return the ISO 639-3 code for this code (e.g. "eng", "fra").
  */
 const char *
 rxkb_iso639_code_get_code(struct rxkb_iso639_code *iso639);
 
 /**
  * Return the first ISO 639 for this layout. Use this to start iterating over
  * the codes, followed by calls to rxkb_iso639_code_next(). Codes are not
  * sorted.
  *
  * The refcount of the returned code is not increased. Use rxkb_iso639_code_ref()
  * if you need to keep this struct outside the immediate scope.
  *
  * @return The first code in the code list.
  */
 struct rxkb_iso639_code *
 rxkb_layout_get_iso639_first(struct rxkb_layout *layout);
 
 /**
  * Return the next code in the list. Returns NULL when no more codes
  * are available.
  *
  * The refcount of the returned codes is not increased. Use
  * rxkb_iso639_code_ref() if you need to keep this struct outside the immediate
  * scope.
  *
  * @returns The next code or NULL at the end of the list
  */
 struct rxkb_iso639_code *
 rxkb_iso639_code_next(struct rxkb_iso639_code *iso639);
 
 /**
  * Increase the refcount of the argument by one.
  *
  * @returns The argument passed in to this function.
  */
 struct rxkb_iso3166_code *
 rxkb_iso3166_code_ref(struct rxkb_iso3166_code *iso3166);
 
 /**
  * Decrease the refcount of the argument by one. When the refcount hits zero,
  * all memory associated with this struct is freed.
  *
  * @returns always NULL
  */
 struct rxkb_iso3166_code *
 rxkb_iso3166_code_unref(struct rxkb_iso3166_code *iso3166);
 
 /**
  * Return the ISO 3166 Alpha 2 code for this code (e.g. "US", "FR").
  */
 const char *
 rxkb_iso3166_code_get_code(struct rxkb_iso3166_code *iso3166);
 
 /**
  * Return the first ISO 3166 for this layout. Use this to start iterating over
  * the codes, followed by calls to rxkb_iso3166_code_next(). Codes are not
  * sorted.
  *
  * The refcount of the returned code is not increased. Use
  * rxkb_iso3166_code_ref() if you need to keep this struct outside the immediate
  * scope.
  *
  * @return The first code in the code list.
  */
 struct rxkb_iso3166_code *
 rxkb_layout_get_iso3166_first(struct rxkb_layout *layout);
 
 /**
  * Return the next code in the list. Returns NULL when no more codes
  * are available.
  *
  * The refcount of the returned codes is not increased. Use
  * rxkb_iso3166_code_ref() if you need to keep this struct outside the immediate
  * scope.
  *
  * @returns The next code or NULL at the end of the list
  */
 struct rxkb_iso3166_code *
 rxkb_iso3166_code_next(struct rxkb_iso3166_code *iso3166);
 
 /** @} */
 
 #ifdef __cplusplus
 } /* extern "C" */
 #endif
 
 #endif /* _XKBREGISTRY_H_ */

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