| Index: third_party/sqlite/ext/fts1/fts1_tokenizer.h
|
| ===================================================================
|
| --- third_party/sqlite/ext/fts1/fts1_tokenizer.h (revision 56608)
|
| +++ third_party/sqlite/ext/fts1/fts1_tokenizer.h (working copy)
|
| @@ -1,90 +0,0 @@
|
| -/*
|
| -** 2006 July 10
|
| -**
|
| -** The author disclaims copyright to this source code.
|
| -**
|
| -*************************************************************************
|
| -** Defines the interface to tokenizers used by fulltext-search. There
|
| -** are three basic components:
|
| -**
|
| -** sqlite3_tokenizer_module is a singleton defining the tokenizer
|
| -** interface functions. This is essentially the class structure for
|
| -** tokenizers.
|
| -**
|
| -** sqlite3_tokenizer is used to define a particular tokenizer, perhaps
|
| -** including customization information defined at creation time.
|
| -**
|
| -** sqlite3_tokenizer_cursor is generated by a tokenizer to generate
|
| -** tokens from a particular input.
|
| -*/
|
| -#ifndef _FTS1_TOKENIZER_H_
|
| -#define _FTS1_TOKENIZER_H_
|
| -
|
| -/* TODO(shess) Only used for SQLITE_OK and SQLITE_DONE at this time.
|
| -** If tokenizers are to be allowed to call sqlite3_*() functions, then
|
| -** we will need a way to register the API consistently.
|
| -*/
|
| -#include "sqlite3.h"
|
| -
|
| -/*
|
| -** Structures used by the tokenizer interface.
|
| -*/
|
| -typedef struct sqlite3_tokenizer sqlite3_tokenizer;
|
| -typedef struct sqlite3_tokenizer_cursor sqlite3_tokenizer_cursor;
|
| -typedef struct sqlite3_tokenizer_module sqlite3_tokenizer_module;
|
| -
|
| -struct sqlite3_tokenizer_module {
|
| - int iVersion; /* currently 0 */
|
| -
|
| - /*
|
| - ** Create and destroy a tokenizer. argc/argv are passed down from
|
| - ** the fulltext virtual table creation to allow customization.
|
| - */
|
| - int (*xCreate)(int argc, const char *const*argv,
|
| - sqlite3_tokenizer **ppTokenizer);
|
| - int (*xDestroy)(sqlite3_tokenizer *pTokenizer);
|
| -
|
| - /*
|
| - ** Tokenize a particular input. Call xOpen() to prepare to
|
| - ** tokenize, xNext() repeatedly until it returns SQLITE_DONE, then
|
| - ** xClose() to free any internal state. The pInput passed to
|
| - ** xOpen() must exist until the cursor is closed. The ppToken
|
| - ** result from xNext() is only valid until the next call to xNext()
|
| - ** or until xClose() is called.
|
| - */
|
| - /* TODO(shess) current implementation requires pInput to be
|
| - ** nul-terminated. This should either be fixed, or pInput/nBytes
|
| - ** should be converted to zInput.
|
| - */
|
| - int (*xOpen)(sqlite3_tokenizer *pTokenizer,
|
| - const char *pInput, int nBytes,
|
| - sqlite3_tokenizer_cursor **ppCursor);
|
| - int (*xClose)(sqlite3_tokenizer_cursor *pCursor);
|
| - int (*xNext)(sqlite3_tokenizer_cursor *pCursor,
|
| - const char **ppToken, int *pnBytes,
|
| - int *piStartOffset, int *piEndOffset, int *piPosition);
|
| -};
|
| -
|
| -struct sqlite3_tokenizer {
|
| - const sqlite3_tokenizer_module *pModule; /* The module for this tokenizer */
|
| - /* Tokenizer implementations will typically add additional fields */
|
| -};
|
| -
|
| -struct sqlite3_tokenizer_cursor {
|
| - sqlite3_tokenizer *pTokenizer; /* Tokenizer for this cursor. */
|
| - /* Tokenizer implementations will typically add additional fields */
|
| -};
|
| -
|
| -/*
|
| -** Get the module for a tokenizer which generates tokens based on a
|
| -** set of non-token characters. The default is to break tokens at any
|
| -** non-alnum character, though the set of delimiters can also be
|
| -** specified by the first argv argument to xCreate().
|
| -*/
|
| -/* TODO(shess) This doesn't belong here. Need some sort of
|
| -** registration process.
|
| -*/
|
| -void sqlite3Fts1SimpleTokenizerModule(sqlite3_tokenizer_module const**ppModule);
|
| -void sqlite3Fts1PorterTokenizerModule(sqlite3_tokenizer_module const**ppModule);
|
| -
|
| -#endif /* _FTS1_TOKENIZER_H_ */
|
|
|