vendor/krb5/1.15.1

1 files changed, 166 insertions, 0 deletions

diff --git a/src/lib/krb5/unicode/ucdata/ucpgba.h b/src/lib/krb5/unicode/ucdata/ucpgba.h
new file mode 100644
index 000000000000..ebd40d313d99
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+++ b/src/lib/krb5/unicode/ucdata/ucpgba.h
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+/*
+ * Copyright 1998-2008 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* Copyright 1999 Computing Research Labs, New Mexico State University
+ *
+ * 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 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 COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY 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.
+ */
+
+/*
+ * This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ * $OpenLDAP: pkg/ldap/libraries/liblunicode/ucdata/ucpgba.h,v 1.10 2008/01/07 23:20:05 kurt Exp $
+ * $Id: ucpgba.h,v 1.4 1999/11/19 15:24:30 mleisher Exp $
+ */
+
+#ifndef _h_ucpgba
+#define _h_ucpgba
+
+#include "k5-int.h"
+
+/***************************************************************************
+ *
+ * Macros and types.
+ *
+ ***************************************************************************/
+
+/*
+ * These are the direction values that can appear in render runs and render
+ * strings.
+ */
+#define UCPGBA_LTR 0
+#define UCPGBA_RTL 1
+
+/*
+ * These are the flags for cursor motion.
+ */
+#define UCPGBA_CURSOR_VISUAL  0
+#define UCPGBA_CURSOR_LOGICAL 1
+
+/*
+ * This structure is used to contain runs of text in a particular direction.
+ */
+typedef struct _ucrun_t {
+    struct _ucrun_t *visual_prev;  /* Pointer to the previous visual run.    */
+    struct _ucrun_t *visual_next;  /* Pointer to the next visual run.        */
+
+    struct _ucrun_t *logical_prev; /* Pointer to the previous logical run.   */
+    struct _ucrun_t *logical_next; /* Pointer to the next logical run.       */
+
+    int direction;                 /* Direction of the run.                  */
+
+    long cursor;                   /* Position of "cursor" in the string.    */
+
+    unsigned long *chars;          /* List of characters for the run.        */
+    unsigned long *positions;      /* List of original positions in source.  */
+
+    unsigned long *source;         /* The source string.                     */
+    unsigned long start;           /* Beginning offset in the source string. */
+    unsigned long end;             /* Ending offset in the source string.    */
+} ucrun_t;
+
+/*
+ * This represents a string of runs rendered up to a point that is not
+ * platform specific.
+ */
+typedef struct _ucstring_t {
+    int direction;                /* Overall direction of the string.       */
+
+    int cursor_motion;            /* Logical or visual cursor motion flag.  */
+
+    ucrun_t *cursor;              /* The run containing the "cursor."       */
+
+    ucrun_t *logical_first;       /* First run in the logical order.        */
+    ucrun_t *logical_last;        /* Last run in the logical order.         */
+
+    ucrun_t *visual_first;        /* First run in the visual order.         */
+    ucrun_t *visual_last;         /* Last run in the visual order.          */
+
+    unsigned long *source;        /* The source string.                     */
+    unsigned long start;          /* The beginning offset in the source.    */
+    unsigned long end;            /* The ending offset in the source.       */
+} ucstring_t;
+
+/***************************************************************************
+ *
+ * API
+ *
+ ***************************************************************************/
+
+/*
+ * This creates and reorders the specified substring using the
+ * "Pretty Good Bidi Algorithm."  A default direction is provided for cases
+ * of a string containing no strong direction characters and the default
+ * cursor motion should be provided.
+ */
+ucstring_t *
+ucstring_create (unsigned long *source,
+		        unsigned long start,
+		        unsigned long end,
+		        int default_direction,
+		        int cursor_motion);
+/*
+ * This releases the string.
+ */
+void ucstring_free (ucstring_t *string);
+
+/*
+ * This changes the cursor motion flag for the string.
+ */
+int
+ucstring_set_cursor_motion (ucstring_t *string,
+				   int cursor_motion);
+
+/*
+ * This function will move the cursor to the right depending on the
+ * type of cursor motion that was specified for the string.
+ *
+ * A 0 is returned if no cursor motion is performed, otherwise a
+ * 1 is returned.
+ */
+int
+ucstring_cursor_right (ucstring_t *string, int count);
+
+/*
+ * This function will move the cursor to the left depending on the
+ * type of cursor motion that was specified for the string.
+ *
+ * A 0 is returned if no cursor motion is performed, otherwise a
+ * 1 is returned.
+ */
+int
+ucstring_cursor_left (ucstring_t *string, int count);
+
+/*
+ * This routine retrieves the direction of the run containing the cursor
+ * and the actual position in the original text string.
+ */
+void
+ucstring_cursor_info (ucstring_t *string, int *direction,
+			     unsigned long *position);
+
+#endif /* _h_ucpgba */