1 files changed, 69 insertions, 0 deletions
diff --git a/src/3rdparty/xkbcommon/src/xkbcomp/vmod.c b/src/3rdparty/xkbcommon/src/xkbcomp/vmod.c
new file mode 100644
index 0000000000..206e1624e6
--- /dev/null
+++ b/src/3rdparty/xkbcommon/src/xkbcomp/vmod.c
@@ -0,0 +1,69 @@
+/************************************************************
+ * 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.
+ *
+ ********************************************************/
+
+#include "xkbcomp-priv.h"
+#include "text.h"
+#include "expr.h"
+#include "vmod.h"
+
+bool
+HandleVModDef(struct xkb_keymap *keymap, VModDef *stmt)
+{
+    xkb_mod_index_t i;
+    const struct xkb_mod *mod;
+    struct xkb_mod new;
+
+    if (stmt->value)
+        log_err(keymap->ctx,
+                "Support for setting a value in a virtual_modifiers statement has been removed; "
+                "Value ignored\n");
+
+    darray_enumerate(i, mod, keymap->mods) {
+        if (mod->name == stmt->name) {
+            if (mod->type == MOD_VIRT)
+                return true;
+
+            log_err(keymap->ctx,
+                    "Can't add a virtual modifier named \"%s\"; "
+                    "there is already a non-virtual modifier with this name! Ignored\n",
+                    xkb_atom_text(keymap->ctx, mod->name));
+            return false;
+        }
+    }
+
+    if (darray_size(keymap->mods) >= XKB_MAX_MODS) {
+        log_err(keymap->ctx,
+                "Too many modifiers defined (maximum %d)\n",
+                XKB_MAX_MODS);
+        return false;
+    }
+
+    new.name = stmt->name;
+    new.mapping = 0;
+    new.type = MOD_VIRT;
+    darray_append(keymap->mods, new);
+    return true;
+}