Moved zebrautl.h to idzebra/util.h.

[idzebra-moved-to-github.git] / util / zint.c

diff --git a/util/zint.c b/util/zint.c
new file mode 100644 (file)
index 0000000..b183a53
--- /dev/null
+++ b/util/zint.c
@@ -0,0 +1,52 @@
+/* $Id: zint.c,v 1.1 2005-03-30 09:25:25 adam Exp $
+   Copyright (C) 1995-2005
+   Index Data ApS
+
+This file is part of the Zebra server.
+
+Zebra is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 2, or (at your option) any later
+version.
+
+Zebra is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with Zebra; see the file LICENSE.zebra.  If not, write to the
+Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA.
+*/
+
+#include <idzebra/util.h>
+
+void zebra_zint_encode(char **dst, zint pos)
+{
+    unsigned char *bp = (unsigned char*) *dst;
+
+    while (pos > 127)
+    {
+         *bp++ = (unsigned char) (128 | (pos & 127));
+         pos = pos >> 7;
+    }
+    *bp++ = (unsigned char) pos;
+    *dst = (char *) bp;
+}
+
+void zebra_zint_decode(const char **src, zint *pos)
+{
+    const unsigned char **bp = (const unsigned char **) src;
+    zint d = 0;
+    unsigned char c;
+    unsigned r = 0;
+
+    while (((c = *(*bp)++) & 128))
+    {
+        d += ((zint) (c & 127) << r);
+       r += 7;
+    }
+    d += ((zint) c << r);
+    *pos = d;
+}