fs/unicode/utf8n.h

Source file repositories/reference/linux-study-clean/fs/unicode/utf8n.h

File Facts

System
Linux kernel
Corpus path
fs/unicode/utf8n.h
Extension
.h
Size
1943 bytes
Lines
84
Domain
Core OS
Bucket
VFS And Filesystem Core
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct utf8cursor {
	const struct unicode_map *um;
	enum utf8_normalization n;
	const char	*s;
	const char	*p;
	const char	*ss;
	const char	*sp;
	unsigned int	len;
	unsigned int	slen;
	short int	ccc;
	short int	nccc;
	unsigned char	hangul[UTF8HANGULLEAF];
};

/*
 * Initialize a utf8cursor to normalize a string.
 * Returns 0 on success.
 * Returns -1 on failure.
 */
int utf8ncursor(struct utf8cursor *u8c, const struct unicode_map *um,
		enum utf8_normalization n, const char *s, size_t len);

/*
 * Get the next byte in the normalization.
 * Returns a value > 0 && < 256 on success.
 * Returns 0 when the end of the normalization is reached.
 * Returns -1 if the string being normalized is not valid UTF-8.
 */
extern int utf8byte(struct utf8cursor *u8c);

struct utf8data {
	unsigned int maxage;
	unsigned int offset;
};

struct utf8data_table {
	const unsigned int *utf8agetab;
	int utf8agetab_size;

	const struct utf8data *utf8nfdicfdata;
	int utf8nfdicfdata_size;

	const struct utf8data *utf8nfdidata;
	int utf8nfdidata_size;

	const unsigned char *utf8data;
};

extern const struct utf8data_table utf8_data_table;

#endif /* UTF8NORM_H */

Annotation

Implementation Notes