Index: third_party/sqlite/sqlite-src-3080704/ext/fts1/simple_tokenizer.c |
diff --git a/third_party/sqlite/sqlite-src-3080704/ext/fts1/simple_tokenizer.c b/third_party/sqlite/sqlite-src-3080704/ext/fts1/simple_tokenizer.c |
deleted file mode 100644 |
index d00a77089d871ccbd6528a943ab79045b0445a3a..0000000000000000000000000000000000000000 |
--- a/third_party/sqlite/sqlite-src-3080704/ext/fts1/simple_tokenizer.c |
+++ /dev/null |
@@ -1,174 +0,0 @@ |
-/* |
-** The author disclaims copyright to this source code. |
-** |
-************************************************************************* |
-** Implementation of the "simple" full-text-search tokenizer. |
-*/ |
- |
-#include <assert.h> |
-#if !defined(__APPLE__) |
-#include <malloc.h> |
-#else |
-#include <stdlib.h> |
-#endif |
-#include <stdio.h> |
-#include <string.h> |
-#include <ctype.h> |
- |
-#include "tokenizer.h" |
- |
-/* Duplicate a string; the caller must free() the returned string. |
- * (We don't use strdup() since it's not part of the standard C library and |
- * may not be available everywhere.) */ |
-/* TODO(shess) Copied from fulltext.c, consider util.c for such |
-** things. */ |
-static char *string_dup(const char *s){ |
- char *str = malloc(strlen(s) + 1); |
- strcpy(str, s); |
- return str; |
-} |
- |
-typedef struct simple_tokenizer { |
- sqlite3_tokenizer base; |
- const char *zDelim; /* token delimiters */ |
-} simple_tokenizer; |
- |
-typedef struct simple_tokenizer_cursor { |
- sqlite3_tokenizer_cursor base; |
- const char *pInput; /* input we are tokenizing */ |
- int nBytes; /* size of the input */ |
- const char *pCurrent; /* current position in pInput */ |
- int iToken; /* index of next token to be returned */ |
- char *zToken; /* storage for current token */ |
- int nTokenBytes; /* actual size of current token */ |
- int nTokenAllocated; /* space allocated to zToken buffer */ |
-} simple_tokenizer_cursor; |
- |
-static sqlite3_tokenizer_module simpleTokenizerModule;/* forward declaration */ |
- |
-static int simpleCreate( |
- int argc, const char **argv, |
- sqlite3_tokenizer **ppTokenizer |
-){ |
- simple_tokenizer *t; |
- |
- t = (simple_tokenizer *) malloc(sizeof(simple_tokenizer)); |
- /* TODO(shess) Delimiters need to remain the same from run to run, |
- ** else we need to reindex. One solution would be a meta-table to |
- ** track such information in the database, then we'd only want this |
- ** information on the initial create. |
- */ |
- if( argc>1 ){ |
- t->zDelim = string_dup(argv[1]); |
- } else { |
- /* Build a string excluding alphanumeric ASCII characters */ |
- char zDelim[0x80]; /* nul-terminated, so nul not a member */ |
- int i, j; |
- for(i=1, j=0; i<0x80; i++){ |
- if( !isalnum(i) ){ |
- zDelim[j++] = i; |
- } |
- } |
- zDelim[j++] = '\0'; |
- assert( j<=sizeof(zDelim) ); |
- t->zDelim = string_dup(zDelim); |
- } |
- |
- *ppTokenizer = &t->base; |
- return SQLITE_OK; |
-} |
- |
-static int simpleDestroy(sqlite3_tokenizer *pTokenizer){ |
- simple_tokenizer *t = (simple_tokenizer *) pTokenizer; |
- |
- free((void *) t->zDelim); |
- free(t); |
- |
- return SQLITE_OK; |
-} |
- |
-static int simpleOpen( |
- sqlite3_tokenizer *pTokenizer, |
- const char *pInput, int nBytes, |
- sqlite3_tokenizer_cursor **ppCursor |
-){ |
- simple_tokenizer_cursor *c; |
- |
- c = (simple_tokenizer_cursor *) malloc(sizeof(simple_tokenizer_cursor)); |
- c->pInput = pInput; |
- c->nBytes = nBytes<0 ? (int) strlen(pInput) : nBytes; |
- c->pCurrent = c->pInput; /* start tokenizing at the beginning */ |
- c->iToken = 0; |
- c->zToken = NULL; /* no space allocated, yet. */ |
- c->nTokenBytes = 0; |
- c->nTokenAllocated = 0; |
- |
- *ppCursor = &c->base; |
- return SQLITE_OK; |
-} |
- |
-static int simpleClose(sqlite3_tokenizer_cursor *pCursor){ |
- simple_tokenizer_cursor *c = (simple_tokenizer_cursor *) pCursor; |
- |
- if( NULL!=c->zToken ){ |
- free(c->zToken); |
- } |
- free(c); |
- |
- return SQLITE_OK; |
-} |
- |
-static int simpleNext( |
- sqlite3_tokenizer_cursor *pCursor, |
- const char **ppToken, int *pnBytes, |
- int *piStartOffset, int *piEndOffset, int *piPosition |
-){ |
- simple_tokenizer_cursor *c = (simple_tokenizer_cursor *) pCursor; |
- simple_tokenizer *t = (simple_tokenizer *) pCursor->pTokenizer; |
- int ii; |
- |
- while( c->pCurrent-c->pInput<c->nBytes ){ |
- int n = (int) strcspn(c->pCurrent, t->zDelim); |
- if( n>0 ){ |
- if( n+1>c->nTokenAllocated ){ |
- c->zToken = realloc(c->zToken, n+1); |
- } |
- for(ii=0; ii<n; ii++){ |
- /* TODO(shess) This needs expansion to handle UTF-8 |
- ** case-insensitivity. |
- */ |
- char ch = c->pCurrent[ii]; |
- c->zToken[ii] = (unsigned char)ch<0x80 ? tolower(ch) : ch; |
- } |
- c->zToken[n] = '\0'; |
- *ppToken = c->zToken; |
- *pnBytes = n; |
- *piStartOffset = (int) (c->pCurrent-c->pInput); |
- *piEndOffset = *piStartOffset+n; |
- *piPosition = c->iToken++; |
- c->pCurrent += n + 1; |
- |
- return SQLITE_OK; |
- } |
- c->pCurrent += n + 1; |
- /* TODO(shess) could strspn() to skip delimiters en masse. Needs |
- ** to happen in two places, though, which is annoying. |
- */ |
- } |
- return SQLITE_DONE; |
-} |
- |
-static sqlite3_tokenizer_module simpleTokenizerModule = { |
- 0, |
- simpleCreate, |
- simpleDestroy, |
- simpleOpen, |
- simpleClose, |
- simpleNext, |
-}; |
- |
-void get_simple_tokenizer_module( |
- sqlite3_tokenizer_module **ppModule |
-){ |
- *ppModule = &simpleTokenizerModule; |
-} |