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 ********************************************************/
31 #include "xkbcomp-priv.h"
35 * Parse an include statement. Each call returns a file name, along with
36 * (possibly) a specific map in the file, an explicit group designator, and
37 * the separator from the next file, used to determine the merge mode.
39 * @param str_inout Input statement, modified in-place. Should be passed in
40 * repeatedly. If str_inout is NULL, the parsing has completed.
42 * @param file_rtrn Set to the name of the include file to be used. Combined
43 * with an enum xkb_file_type, this determines which file to look for in the
46 * @param map_rtrn Set to the string between '(' and ')', if any. This will
47 * result in the compilation of a specific named map within the file (e.g.
48 * xkb_symbols "basic" { ... }) , as opposed to the default map of the file.
50 * @param nextop_rtrn Set to the next operation in the complete statement,
51 * which is '\0' if it's the last file or '+' or '|' if there are more.
52 * Separating the files with '+' sets the merge mode to MERGE_MODE_OVERRIDE,
53 * while '|' sets the merge mode to MERGE_MODE_AUGMENT.
55 * @param extra_data Set to the string after ':', if any. Currently the
56 * extra data is only used for setting an explicit group index for a symbols
59 * @return true if parsing was successful, false for an illegal string.
61 * Example: "evdev+aliases(qwerty):2"
62 * str_inout = "aliases(qwerty):2"
68 * 2nd run with "aliases(qwerty):2"
70 * file_rtrn = "aliases"
77 ParseIncludeMap(char **str_inout, char **file_rtrn, char **map_rtrn,
78 char *nextop_rtrn, char **extra_data)
80 char *tmp, *str, *next;
85 * Find the position in the string where the next file is included,
86 * if there is more than one left in the statement.
88 next = strpbrk(str, "|+");
90 /* Got more files, this function will be called again. */
92 /* Separate the string, for strchr etc. to work on this file only. */
96 /* This is the last file in this statement, won't be called again. */
102 * Search for the explicit group designator, if any. If it's there,
103 * it goes after the file name and map.
105 tmp = strchr(str, ':');
108 *extra_data = strdup(tmp);
114 /* Look for a map, if any. */
115 tmp = strchr(str, '(');
118 *file_rtrn = strdup(str);
121 else if (str[0] == '(') {
122 /* Map without file - invalid. */
127 /* Got a map; separate the file and the map for the strdup's. */
129 *file_rtrn = strdup(str);
131 tmp = strchr(str, ')');
132 if (tmp == NULL || tmp[1] != '\0') {
138 *map_rtrn = strdup(str);
141 /* Set up the next file for the next call, if any. */
142 if (*nextop_rtrn == '\0')
144 else if (*nextop_rtrn == '|' || *nextop_rtrn == '+')
152 /***====================================================================***/
154 static const char *xkb_file_type_include_dirs[_FILE_TYPE_NUM_ENTRIES] = {
155 [FILE_TYPE_KEYCODES] = "keycodes",
156 [FILE_TYPE_TYPES] = "types",
157 [FILE_TYPE_COMPAT] = "compat",
158 [FILE_TYPE_SYMBOLS] = "symbols",
159 [FILE_TYPE_GEOMETRY] = "geometry",
160 [FILE_TYPE_KEYMAP] = "keymap",
161 [FILE_TYPE_RULES] = "rules",
165 * Return the xkb directory based on the type.
168 DirectoryForInclude(enum xkb_file_type type)
170 if (type >= _FILE_TYPE_NUM_ENTRIES)
172 return xkb_file_type_include_dirs[type];
175 /***====================================================================***/
178 * Search for the given file name in the include directories.
180 * @param ctx the XKB ctx containing the include paths
181 * @param type one of FILE_TYPE_TYPES, FILE_TYPE_COMPAT, ..., or
182 * FILE_TYPE_KEYMAP or FILE_TYPE_RULES
183 * @param pathRtrn is set to the full path of the file if found.
185 * @return an FD to the file or NULL. If NULL is returned, the value of
186 * pathRtrn is undefined.
189 FindFileInXkbPath(struct xkb_context *ctx, const char *name,
190 enum xkb_file_type type, char **pathRtrn)
198 typeDir = DirectoryForInclude(type);
199 for (i = 0; i < xkb_context_num_include_paths(ctx); i++) {
200 ret = snprintf(buf, sizeof(buf), "%s/%s/%s",
201 xkb_context_include_path_get(ctx, i), typeDir, name);
202 if (ret >= (ssize_t) sizeof(buf)) {
203 log_err(ctx, "File name (%s/%s/%s) too long\n",
204 xkb_context_include_path_get(ctx, i), typeDir, name);
207 file = fopen(buf, "r");
209 log_err(ctx, "Couldn't open file (%s/%s/%s): %s\n",
210 xkb_context_include_path_get(ctx, i), typeDir, name,
217 if ((file != NULL) && (pathRtrn != NULL))
218 *pathRtrn = strdup(buf);
223 * Open the file given in the include statement and parse it's content.
224 * If the statement defines a specific map to use, this map is returned in
225 * file_rtrn. Otherwise, the default map is returned.
227 * @param ctx The ctx containing include paths
228 * @param stmt The include statement, specifying the file name to look for.
229 * @param file_type Type of file (FILE_TYPE_KEYCODES, etc.)
230 * @param file_rtrn Returns the key map to be used.
231 * @param merge_rtrn Always returns stmt->merge.
233 * @return true on success or false otherwise.
236 ProcessIncludeFile(struct xkb_context *ctx,
238 enum xkb_file_type file_type,
239 XkbFile ** file_rtrn, enum merge_mode *merge_rtrn)
242 XkbFile *rtrn, *mapToUse, *next;
244 file = FindFileInXkbPath(ctx, stmt->file, file_type, NULL);
246 log_err(ctx, "Can't find file \"%s\" for %s include\n", stmt->file,
247 DirectoryForInclude(file_type));
251 if (!XkbParseFile(ctx, file, stmt->file, &rtrn)) {
252 log_err(ctx, "Error interpreting include file \"%s\"\n", stmt->file);
259 if (stmt->map != NULL) {
262 next = (XkbFile *) mapToUse->common.next;
263 mapToUse->common.next = NULL;
264 if (streq(mapToUse->name, stmt->map) &&
265 mapToUse->file_type == file_type) {
270 FreeXkbFile(mapToUse);
275 log_err(ctx, "No %s named \"%s\" in the include file \"%s\"\n",
276 xkb_file_type_to_string(file_type), stmt->map,
281 else if (rtrn->common.next) {
282 for (; mapToUse; mapToUse = (XkbFile *) mapToUse->common.next)
283 if (mapToUse->flags & MAP_IS_DEFAULT)
289 "No map in include statement, but \"%s\" contains several; "
290 "Using first defined map, \"%s\"\n",
291 stmt->file, rtrn->name);
295 if (mapToUse->file_type != file_type) {
297 "Include file wrong type (expected %s, got %s); "
298 "Include file \"%s\" ignored\n",
299 xkb_file_type_to_string(file_type),
300 xkb_file_type_to_string(mapToUse->file_type), stmt->file);
304 /* FIXME: we have to check recursive includes here (or somewhere) */
306 *file_rtrn = mapToUse;
307 *merge_rtrn = stmt->merge;