Integrated XStringToKeysym from libX11 in the module.

To look up Keysyms from Strings the method XStringToKeysym comes in handy, which would
require linking against libX11. By integrating the method in the module, this can be
avoided until similar functionallity get's included in xorg-server.

src/StrKeysym.c

@@ -0,0 +1,82 @@
+/* $Xorg: StrKeysym.c,v 1.5 2001/02/09 02:03:37 xorgcvs Exp $ */
+/*
+
+Copyright 1985, 1987, 1990, 1998  The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice 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
+OPEN GROUP 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.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+/* $XFree86: xc/lib/X11/StrKeysym.c,v 3.7 2003/04/13 19:22:18 dawes Exp $ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <xf86.h>
+#include <X11/keysymdef.h>
+
+#define NEEDKTABLE
+#include "ks_tables.h"
+
+#include "StrKeysym.h"
+
+
+KeySym
+XStringToKeysym(_Xconst char *s)
+{
+    register int i, n;
+    int h;
+    register unsigned long sig = 0;
+    register const char *p = s;
+    register int c;
+    register int idx;
+    const unsigned char *entry;
+    unsigned char sig1, sig2;
+    KeySym val;
+
+    while ((c = *p++))
+	sig = (sig << 1) + c;
+    i = sig % KTABLESIZE;
+    h = i + 1;
+    sig1 = (sig >> 8) & 0xff;
+    sig2 = sig & 0xff;
+    n = KMAXHASH;
+    while ((idx = hashString[i]))
+    {
+	entry = &_XkeyTable[idx];
+	if ((entry[0] == sig1) && (entry[1] == sig2) &&
+	    !strcmp(s, (char *)entry + 6))
+	{
+	    val = (entry[2] << 24) | (entry[3] << 16) |
+	          (entry[4] << 8)  | entry[5];
+	    if (!val)
+		val = XK_VoidSymbol;
+	    return val;
+	}
+	if (!--n)
+	    break;
+	i += h;
+	if (i >= KTABLESIZE)
+	    i -= KTABLESIZE;
+    }
+
+    return NoSymbol;
+}

src/StrKeysym.h

@@ -0,0 +1,6 @@
+#ifndef _STRKEYSYM_H_INCLUDED_
+#define _STRKEYSYM_H_INCLUDED_
+
+KeySym XStringToKeysym(_Xconst char *s);
+
+#endif