1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
155 lines
3.7 KiB
C
155 lines
3.7 KiB
C
/*
|
|
* Copyright (c) International Business Machines Corp., 2000-2002
|
|
* Portions Copyright (c) Christoph Hellwig, 2001-2002
|
|
*
|
|
* This program 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 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
#ifndef _H_JFS_UNICODE
|
|
#define _H_JFS_UNICODE
|
|
|
|
#include <asm/byteorder.h>
|
|
#include "jfs_types.h"
|
|
|
|
typedef struct {
|
|
wchar_t start;
|
|
wchar_t end;
|
|
signed char *table;
|
|
} UNICASERANGE;
|
|
|
|
extern signed char UniUpperTable[512];
|
|
extern UNICASERANGE UniUpperRange[];
|
|
extern int get_UCSname(struct component_name *, struct dentry *);
|
|
extern int jfs_strfromUCS_le(char *, const __le16 *, int, struct nls_table *);
|
|
|
|
#define free_UCSname(COMP) kfree((COMP)->name)
|
|
|
|
/*
|
|
* UniStrcpy: Copy a string
|
|
*/
|
|
static inline wchar_t *UniStrcpy(wchar_t * ucs1, const wchar_t * ucs2)
|
|
{
|
|
wchar_t *anchor = ucs1; /* save the start of result string */
|
|
|
|
while ((*ucs1++ = *ucs2++));
|
|
return anchor;
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* UniStrncpy: Copy length limited string with pad
|
|
*/
|
|
static inline __le16 *UniStrncpy_le(__le16 * ucs1, const __le16 * ucs2,
|
|
size_t n)
|
|
{
|
|
__le16 *anchor = ucs1;
|
|
|
|
while (n-- && *ucs2) /* Copy the strings */
|
|
*ucs1++ = *ucs2++;
|
|
|
|
n++;
|
|
while (n--) /* Pad with nulls */
|
|
*ucs1++ = 0;
|
|
return anchor;
|
|
}
|
|
|
|
/*
|
|
* UniStrncmp_le: Compare length limited string - native to little-endian
|
|
*/
|
|
static inline int UniStrncmp_le(const wchar_t * ucs1, const __le16 * ucs2,
|
|
size_t n)
|
|
{
|
|
if (!n)
|
|
return 0; /* Null strings are equal */
|
|
while ((*ucs1 == __le16_to_cpu(*ucs2)) && *ucs1 && --n) {
|
|
ucs1++;
|
|
ucs2++;
|
|
}
|
|
return (int) *ucs1 - (int) __le16_to_cpu(*ucs2);
|
|
}
|
|
|
|
/*
|
|
* UniStrncpy_to_le: Copy length limited string with pad to little-endian
|
|
*/
|
|
static inline __le16 *UniStrncpy_to_le(__le16 * ucs1, const wchar_t * ucs2,
|
|
size_t n)
|
|
{
|
|
__le16 *anchor = ucs1;
|
|
|
|
while (n-- && *ucs2) /* Copy the strings */
|
|
*ucs1++ = cpu_to_le16(*ucs2++);
|
|
|
|
n++;
|
|
while (n--) /* Pad with nulls */
|
|
*ucs1++ = 0;
|
|
return anchor;
|
|
}
|
|
|
|
/*
|
|
* UniStrncpy_from_le: Copy length limited string with pad from little-endian
|
|
*/
|
|
static inline wchar_t *UniStrncpy_from_le(wchar_t * ucs1, const __le16 * ucs2,
|
|
size_t n)
|
|
{
|
|
wchar_t *anchor = ucs1;
|
|
|
|
while (n-- && *ucs2) /* Copy the strings */
|
|
*ucs1++ = __le16_to_cpu(*ucs2++);
|
|
|
|
n++;
|
|
while (n--) /* Pad with nulls */
|
|
*ucs1++ = 0;
|
|
return anchor;
|
|
}
|
|
|
|
/*
|
|
* UniToupper: Convert a unicode character to upper case
|
|
*/
|
|
static inline wchar_t UniToupper(wchar_t uc)
|
|
{
|
|
UNICASERANGE *rp;
|
|
|
|
if (uc < sizeof(UniUpperTable)) { /* Latin characters */
|
|
return uc + UniUpperTable[uc]; /* Use base tables */
|
|
} else {
|
|
rp = UniUpperRange; /* Use range tables */
|
|
while (rp->start) {
|
|
if (uc < rp->start) /* Before start of range */
|
|
return uc; /* Uppercase = input */
|
|
if (uc <= rp->end) /* In range */
|
|
return uc + rp->table[uc - rp->start];
|
|
rp++; /* Try next range */
|
|
}
|
|
}
|
|
return uc; /* Past last range */
|
|
}
|
|
|
|
|
|
/*
|
|
* UniStrupr: Upper case a unicode string
|
|
*/
|
|
static inline wchar_t *UniStrupr(wchar_t * upin)
|
|
{
|
|
wchar_t *up;
|
|
|
|
up = upin;
|
|
while (*up) { /* For all characters */
|
|
*up = UniToupper(*up);
|
|
up++;
|
|
}
|
|
return upin; /* Return input pointer */
|
|
}
|
|
|
|
#endif /* !_H_JFS_UNICODE */
|