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Extend fts2 so that user defined tokenizers may be added. Add a tokenizer that uses the ICU library if available. Documentation and tests to come. (CVS 4108)

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FossilOrigin-Name: 68677e420c744b39ea9d7399819e0f376748886d
This commit is contained in:
danielk1977
2007-06-22 15:21:15 +00:00
parent bf2564f612
commit 832a58a68c
17 changed files with 821 additions and 81 deletions
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56
src/vtab.c
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@@ -11,11 +11,38 @@
*************************************************************************
** This file contains code used to help implement virtual tables.
**
** $Id: vtab.c,v 1.46 2007/05/04 13:15:57 drh Exp $
** $Id: vtab.c,v 1.47 2007/06/22 15:21:16 danielk1977 Exp $
*/
#ifndef SQLITE_OMIT_VIRTUALTABLE
#include "sqliteInt.h"
static int createModule(
sqlite3 *db, /* Database in which module is registered */
const char *zName, /* Name assigned to this module */
const sqlite3_module *pModule, /* The definition of the module */
void *pAux, /* Context pointer for xCreate/xConnect */
void (*xDestroy)(void *) /* Module destructor function */
) {
int nName = strlen(zName);
Module *pMod = (Module *)sqliteMallocRaw(sizeof(Module) + nName + 1);
if( pMod ){
char *zCopy = (char *)(&pMod[1]);
memcpy(zCopy, zName, nName+1);
pMod->zName = zCopy;
pMod->pModule = pModule;
pMod->pAux = pAux;
pMod->xDestroy = xDestroy;
pMod = (Module *)sqlite3HashInsert(&db->aModule, zCopy, nName, (void*)pMod);
if( pMod && pMod->xDestroy ){
pMod->xDestroy(pMod->pAux);
}
sqliteFree(pMod);
sqlite3ResetInternalSchema(db, 0);
}
return sqlite3ApiExit(db, SQLITE_OK);
}
/*
** External API function used to create a new virtual-table module.
*/
@@ -25,19 +52,20 @@ int sqlite3_create_module(
const sqlite3_module *pModule, /* The definition of the module */
void *pAux /* Context pointer for xCreate/xConnect */
){
int nName = strlen(zName);
Module *pMod = (Module *)sqliteMallocRaw(sizeof(Module) + nName + 1);
if( pMod ){
char *zCopy = (char *)(&pMod[1]);
memcpy(zCopy, zName, nName+1);
pMod->zName = zCopy;
pMod->pModule = pModule;
pMod->pAux = pAux;
pMod = (Module *)sqlite3HashInsert(&db->aModule, zCopy, nName, (void*)pMod);
sqliteFree(pMod);
sqlite3ResetInternalSchema(db, 0);
}
return sqlite3ApiExit(db, SQLITE_OK);
return createModule(db, zName, pModule, pAux, 0);
}
/*
** External API function used to create a new virtual-table module.
*/
int sqlite3_create_module_v2(
sqlite3 *db, /* Database in which module is registered */
const char *zName, /* Name assigned to this module */
const sqlite3_module *pModule, /* The definition of the module */
void *pAux, /* Context pointer for xCreate/xConnect */
void (*xDestroy)(void *) /* Module destructor function */
){
return createModule(db, zName, pModule, pAux, xDestroy);
}
/*