fts0types.ic File Reference

#include <ctype.h>
#include "rem0cmp.h"
#include "ha_prototypes.h"

Include dependency graph for fts0types.ic:

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Macros
#define	INNOBASE_FTS0TYPES_IC
#define	fts_utf8_is_valid(b)   (((b) & 0xC0) == 0x80)

Functions
UNIV_INLINE void	fts_utf8_string_dup (fts_string_t *dst, const fts_string_t *src, mem_heap_t *heap)
UNIV_INLINE int	fts_trx_row_doc_id_cmp (const void *p1, const void *p2)
UNIV_INLINE int	fts_ranking_doc_id_cmp (const void *p1, const void *p2)
UNIV_INLINE int	fts_update_doc_id_cmp (const void *p1, const void *p2)
UNIV_INLINE void	fts_utf8_tolower (fts_string_t *str)
UNIV_INLINE int	fts_utf8_string_cmp (const void *p1, const void *p2)
UNIV_INLINE int	fts_utf8_string_cmp_prefix (const void *p1, const void *p2)
UNIV_INLINE ulint	fts_utf8_decode (const byte **ptr)
ulint	innobase_strnxfrm (const CHARSET_INFO *cs, const uchar *p2, const ulint len2)
UNIV_INLINE ulint	fts_select_index (const CHARSET_INFO *cs, const byte *str, ulint len)
UNIV_INLINE ulint	fts_select_next_index (const CHARSET_INFO *cs, const byte *str, ulint len)
UNIV_INLINE const char *	fts_get_suffix (ulint selected)
UNIV_INLINE ulint	fts_get_n_selectors (void)

Variables
const ulint	UTF8_ERROR

Detailed Description

Full text search types.

Created 2007-03-27 Sunny Bains

Function Documentation

UNIV_INLINE ulint fts_get_n_selectors

(

void

)

Get the number of index selectors.

Returns

The number of selectors

UNIV_INLINE const char* fts_get_suffix

(

ulint

selected

)

Return the selected FTS aux index suffix.

Parameters

selected

in: selected index

UNIV_INLINE int fts_ranking_doc_id_cmp	(	const void *	p1,
		const void *	p2
	)

Compare two fts_ranking_t doc_ids.

Returns

< 0 if n1 < n2, 0 if n1 == n2, > 0 if n1 > n2

Parameters

p1	in: id1
p2	in: id2

UNIV_INLINE ulint fts_select_index	(	const CHARSET_INFO *	cs,
		const byte *	str,
		ulint	len
	)

Select the FTS auxiliary index for the given character.

Returns

the index to use for the string

Parameters

cs	in: Charset
str	in: string
len	in: string length

UNIV_INLINE ulint fts_select_next_index	(	const CHARSET_INFO *	cs,
		const byte *	str,
		ulint	len
	)

Select the next FTS auxiliary index for the given character.

Returns

the next index to use for character

Parameters

cs	in: Charset
str	in: string
len	in: string length

UNIV_INLINE int fts_trx_row_doc_id_cmp	(	const void *	p1,
		const void *	p2
	)

Compare two fts_trx_row_t doc_ids.

Returns

< 0 if n1 < n2, 0 if n1 == n2, > 0 if n1 > n2

Parameters

p1	in: id1
p2	in: id2

UNIV_INLINE int fts_update_doc_id_cmp	(	const void *	p1,
		const void *	p2
	)

Compare two fts_update_t doc_ids.

Returns

< 0 if n1 < n2, 0 if n1 == n2, > 0 if n1 > n2

Parameters

p1	in: id1
p2	in: id2

UNIV_INLINE ulint fts_utf8_decode

(

const byte **

ptr

)

Decode a UTF-8 character.

http://www.unicode.org/versions/Unicode4.0.0/ch03.pdf:

Scalar Value 1st Byte 2nd Byte 3rd Byte 4th Byte 00000000 0xxxxxxx 0xxxxxxx 00000yyy yyxxxxxx 110yyyyy 10xxxxxx zzzzyyyy yyxxxxxx 1110zzzz 10yyyyyy 10xxxxxx 000uuuzz zzzzyyyy yyxxxxxx 11110uuu 10zzzzzz 10yyyyyy 10xxxxxx

This function decodes UTF-8 sequences up to 6 bytes (31 bits).

On error *ptr will point to the first byte that was not correctly decoded. This will hopefully help in resyncing the input.

Returns

UTF8_ERROR if *ptr did not point to a valid UTF-8 sequence, or the Unicode code point.

Parameters

ptr	in/out: pointer to UTF-8 string. The pointer is advanced to the start of the next character.

UNIV_INLINE int fts_utf8_string_cmp	(	const void *	p1,
		const void *	p2
	)

Compare two UTF-8 strings.

Returns

< 0 if n1 < n2, 0 if n1 == n2, > 0 if n1 > n2

Parameters

p1	in: key
p2	in: node

UNIV_INLINE int fts_utf8_string_cmp_prefix	(	const void *	p1,
		const void *	p2
	)

Compare two UTF-8 strings, and return match (0) if passed in "key" value equals or is the prefix of the "node" value.

Returns

< 0 if n1 < n2, 0 if n1 == n2, > 0 if n1 > n2

Parameters

p1	in: key
p2	in: node

UNIV_INLINE void fts_utf8_string_dup	(	fts_string_t *	dst,
		const fts_string_t *	src,
		mem_heap_t *	heap
	)

Duplicate an UTF-8 string.

Returns

< 0 if n1 < n2, 0 if n1 == n2, > 0 if n1 > n2

Parameters

dst	in: dup to here
src	in: src string
heap	in: heap to use

UNIV_INLINE void fts_utf8_tolower

(

fts_string_t *

str

)

Lowercase an UTF-8 string.

Parameters

str	in: string

ulint innobase_strnxfrm	(	const CHARSET_INFO *	cs,
		const uchar *	p2,
		const ulint	len2
	)

Get the first character's code position for FTS index partition in: string length

Parameters

cs	in: Character set
p2	in: string