nls_utf8.c File Reference

#include <stdint.h>
#include <unistd.h>
#include <string.h>
#include <limits.h>
#include <errno.h>
#include <f2fs_fs.h>
#include "utf8data.h"

Include dependency graph for nls_utf8.c:

Classes
struct	utf8cursor
struct	utf8data

Macros
#define	UNICODE_MAJ_SHIFT   (16)
#define	UNICODE_MIN_SHIFT   (8)
#define	UNICODE_AGE(MAJ, MIN, REV)
#define	UTF8HANGULLEAF   (12)
#define	__INCLUDED_FROM_UTF8NORM_C__
#define	ARRAY_SIZE(array)    (sizeof(array) / sizeof(array[0]))
#define	BITNUM   0x07
#define	NEXTBYTE   0x08
#define	OFFLEN   0x30
#define	OFFLEN_SHIFT   4
#define	RIGHTPATH   0x40
#define	TRIENODE   0x80
#define	RIGHTNODE   0x40
#define	LEFTNODE   0x80
#define	LEAF_GEN(LEAF)   ((LEAF)[0])
#define	LEAF_CCC(LEAF)   ((LEAF)[1])
#define	LEAF_STR(LEAF)   ((const char *)((LEAF) + 2))
#define	MINCCC   (0)
#define	MAXCCC   (254)
#define	STOPPER   (0)
#define	DECOMPOSE   (255)
#define	HANGUL   ((char)(255))
#define	UTF8HANGULLEAF   (12)
#define	SB   (0xAC00)
#define	LB   (0x1100)
#define	VB   (0x1161)
#define	TB   (0x11A7)
#define	LC   (19)
#define	VC   (21)
#define	TC   (28)
#define	NC   (VC * TC)
#define	SC   (LC * NC)

Typedefs
typedef const unsigned char	utf8trie_t
typedef const unsigned char	utf8leaf_t

Functions
static int	utf8clen (const char *s)
static unsigned int	utf8decode3 (const char *str)
static int	utf8encode3 (char *str, unsigned int val)
static utf8leaf_t *	utf8hangul (const char *str, unsigned char *hangul)
static utf8leaf_t *	utf8nlookup (const struct utf8data *data, unsigned char *hangul, const char *s, size_t len)
static utf8leaf_t *	utf8lookup (const struct utf8data *data, unsigned char *hangul, const char *s)
static int	utf8ncursor (struct utf8cursor *u8c, const struct utf8data *data, const char *s, size_t len)
static int	utf8byte (struct utf8cursor *u8c)
static const struct utf8data *	utf8nfdicf (unsigned int maxage)
static int	utf8_casefold (const struct f2fs_nls_table *table, const unsigned char *str, size_t len, unsigned char *dest, size_t dlen)
const struct f2fs_nls_table *	f2fs_load_nls_table (int encoding)

Variables
static const struct f2fs_nls_ops	utf8_ops
static const struct f2fs_nls_table	nls_utf8

Macro Definition Documentation

__INCLUDED_FROM_UTF8NORM_C__

#define __INCLUDED_FROM_UTF8NORM_C__

ARRAY_SIZE

#define ARRAY_SIZE

(

array

)

(sizeof(array) / sizeof(array[0]))

BITNUM

#define BITNUM   0x07

DECOMPOSE

#define DECOMPOSE   (255)

HANGUL

#define HANGUL   ((char)(255))

LB

#define LB   (0x1100)

LC

#define LC   (19)

LEAF_CCC

#define LEAF_CCC

(

LEAF

)

((LEAF)[1])

LEAF_GEN

#define LEAF_GEN

(

LEAF

)

((LEAF)[0])

LEAF_STR

#define LEAF_STR

(

LEAF

)

((const char *)((LEAF) + 2))

LEFTNODE

#define LEFTNODE   0x80

MAXCCC

#define MAXCCC   (254)

MINCCC

#define MINCCC   (0)

NC

#define NC   (VC * TC)

NEXTBYTE

#define NEXTBYTE   0x08

OFFLEN

#define OFFLEN   0x30

OFFLEN_SHIFT

#define OFFLEN_SHIFT   4

RIGHTNODE

#define RIGHTNODE   0x40

RIGHTPATH

#define RIGHTPATH   0x40

SB

#define SB   (0xAC00)

SC

#define SC   (LC * NC)

STOPPER

#define STOPPER   (0)

TB

#define TB   (0x11A7)

TC

#define TC   (28)

TRIENODE

#define TRIENODE   0x80

UNICODE_AGE

#define UNICODE_AGE	(		MAJ,
			MIN,
			REV
	)

Value:

    (((unsigned int)(MAJ) << UNICODE_MAJ_SHIFT) |   \
     ((unsigned int)(MIN) << UNICODE_MIN_SHIFT) |   \
     ((unsigned int)(REV)))

UNICODE_MAJ_SHIFT

#define UNICODE_MAJ_SHIFT   (16)

UNICODE_MIN_SHIFT

#define UNICODE_MIN_SHIFT   (8)

UTF8HANGULLEAF [1/2]

#define UTF8HANGULLEAF   (12)

UTF8HANGULLEAF [2/2]

#define UTF8HANGULLEAF   (12)

VB

#define VB   (0x1161)

VC

#define VC   (21)

Typedef Documentation

utf8leaf_t

typedef const unsigned char utf8leaf_t

utf8trie_t

typedef const unsigned char utf8trie_t

Function Documentation

f2fs_load_nls_table()

const struct f2fs_nls_table * f2fs_load_nls_table

(

int

encoding

)

utf8_casefold()

static int utf8_casefold ( const struct f2fs_nls_table *  table, const unsigned char *  str, size_t  len, unsigned char *  dest, size_t  dlen  )

static

utf8byte()

static int utf8byte ( struct utf8cursor *  u8c )

static

utf8clen()

static int utf8clen ( const char *  s )

inlinestatic

utf8decode3()

static unsigned int utf8decode3 ( const char *  str )

static

utf8encode3()

static int utf8encode3 ( char *  str, unsigned int  val  )

static

utf8hangul()

static utf8leaf_t * utf8hangul ( const char *  str, unsigned char *  hangul  )

static

utf8lookup()

static utf8leaf_t * utf8lookup ( const struct utf8data *  data, unsigned char *  hangul, const char *  s  )

static

utf8ncursor()

static int utf8ncursor ( struct utf8cursor *  u8c, const struct utf8data *  data, const char *  s, size_t  len  )

static

utf8nfdicf()

static const struct utf8data * utf8nfdicf ( unsigned int  maxage )

static

utf8nlookup()

static utf8leaf_t * utf8nlookup ( const struct utf8data *  data, unsigned char *  hangul, const char *  s, size_t  len  )

static

Variable Documentation

nls_utf8

const struct f2fs_nls_table nls_utf8

static

Initial value:

= {
    .ops = &utf8_ops,
    .version = UNICODE_AGE(12, 1, 0),
}

utf8_ops

const struct f2fs_nls_ops utf8_ops

static

Initial value:

= {
    .casefold = utf8_casefold,
}