1 files changed, 203 insertions, 0 deletions
diff --git a/src/3rdparty/xkbcommon/src/compose/paths.c b/src/3rdparty/xkbcommon/src/compose/paths.c
new file mode 100644
index 0000000000..e9d43d7e44
--- /dev/null
+++ b/src/3rdparty/xkbcommon/src/compose/paths.c
@@ -0,0 +1,203 @@
+/*
+ * Copyright © 2014 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.
+ */
+
+#include "utils.h"
+#include "paths.h"
+
+enum resolve_name_direction {
+    LEFT_TO_RIGHT,
+    RIGHT_TO_LEFT,
+};
+
+const char *
+get_xlocaledir_path(void)
+{
+    const char *dir = secure_getenv("XLOCALEDIR");
+    if (!dir)
+        dir = XLOCALEDIR;
+    return dir;
+}
+
+/*
+ * Files like compose.dir have the format LEFT: RIGHT.  Lookup @name in
+ * such a file and return its matching value, according to @direction.
+ * @filename is relative to the xlocaledir.
+ */
+static char *
+resolve_name(const char *filename, enum resolve_name_direction direction,
+             const char *name)
+{
+    int ret;
+    bool ok;
+    const char *xlocaledir;
+    char path[512];
+    FILE *file;
+    char *string;
+    size_t string_size;
+    const char *end;
+    const char *s, *left, *right;
+    char *match;
+    size_t left_len, right_len, name_len;
+
+    xlocaledir = get_xlocaledir_path();
+
+    ret = snprintf(path, sizeof(path), "%s/%s", xlocaledir, filename);
+    if (ret < 0 || (size_t) ret >= sizeof(path))
+        return false;
+
+    file = fopen(path, "r");
+    if (!file)
+        return false;
+
+    ok = map_file(file, &string, &string_size);
+    fclose(file);
+    if (!ok)
+        return false;
+
+    s = string;
+    end = string + string_size;
+    name_len = strlen(name);
+    match = NULL;
+
+    while (s < end) {
+        /* Skip spaces. */
+        while (s < end && is_space(*s))
+            s++;
+
+        /* Skip comments. */
+        if (s < end && *s == '#') {
+            while (s < end && *s != '\n')
+                s++;
+            continue;
+        }
+
+        /* Get the left value. */
+        left = s;
+        while (s < end && !is_space(*s) && *s != ':')
+            s++;
+        left_len = s - left;
+
+        /* There's an optional colon between left and right. */
+        if (s < end && *s == ':')
+            s++;
+
+        /* Skip spaces. */
+        while (s < end && is_space(*s))
+            s++;
+
+        /* Get the right value. */
+        right = s;
+        while (s < end && !is_space(*s))
+            s++;
+        right_len = s - right;
+
+        /* Discard rest of line. */
+        while (s < end && *s != '\n')
+            s++;
+
+        if (direction == LEFT_TO_RIGHT) {
+            if (left_len == name_len && memcmp(left, name, left_len) == 0) {
+                match = strndup(right, right_len);
+                break;
+            }
+        }
+        else if (direction == RIGHT_TO_LEFT) {
+            if (right_len == name_len && memcmp(right, name, right_len) == 0) {
+                match = strndup(left, left_len);
+                break;
+            }
+        }
+    }
+
+    unmap_file(string, string_size);
+    return match;
+}
+
+char *
+resolve_locale(const char *locale)
+{
+    char *alias = resolve_name("locale.alias", LEFT_TO_RIGHT, locale);
+    return alias ? alias : strdup(locale);
+}
+
+const char *
+get_xcomposefile_path(void)
+{
+    return secure_getenv("XCOMPOSEFILE");
+}
+
+char *
+get_home_xcompose_file_path(void)
+{
+    int ret;
+    const char *home;
+    char *path;
+
+    home = secure_getenv("HOME");
+    if (!home)
+        return NULL;
+
+    ret = asprintf(&path, "%s/.XCompose", home);
+    if (ret <0)
+        return NULL;
+
+    return path;
+}
+
+char *
+get_locale_compose_file_path(const char *locale)
+{
+    char *resolved;
+    char *path;
+
+    /*
+     * WARNING: Random workaround ahead.
+     *
+     * We currently do not support non-UTF-8 Compose files.  The C/POSIX
+     * locale is specified to be the default fallback locale with an
+     * ASCII charset.  But for some reason the compose.dir points the C
+     * locale to the iso8859-1/Compose file, which is not ASCII but
+     * ISO8859-1.  Since this is bound to happen a lot, and since our API
+     * is UTF-8 based, and since 99% of the time a C locale is really just
+     * a misconfiguration for UTF-8, let's do the most helpful thing.
+     */
+    if (streq(locale, "C"))
+        locale = "en_US.UTF-8";
+
+    resolved = resolve_name("compose.dir", RIGHT_TO_LEFT, locale);
+    if (!resolved)
+        return NULL;
+
+    if (resolved[0] == '/') {
+        path = resolved;
+    }
+    else {
+        const char *xlocaledir = get_xlocaledir_path();
+        int ret = asprintf(&path, "%s/%s", xlocaledir, resolved);
+        free(resolved);
+        if (ret < 0)
+            return NULL;
+    }
+
+    return path;
+}