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-rw-r--r--lib/libsqlite3/src/vdbetrace.c188
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diff --git a/lib/libsqlite3/src/vdbetrace.c b/lib/libsqlite3/src/vdbetrace.c
deleted file mode 100644
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--- a/lib/libsqlite3/src/vdbetrace.c
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-/*
-** 2009 November 25
-**
-** The author disclaims copyright to this source code. In place of
-** a legal notice, here is a blessing:
-**
-** May you do good and not evil.
-** May you find forgiveness for yourself and forgive others.
-** May you share freely, never taking more than you give.
-**
-*************************************************************************
-**
-** This file contains code used to insert the values of host parameters
-** (aka "wildcards") into the SQL text output by sqlite3_trace().
-**
-** The Vdbe parse-tree explainer is also found here.
-*/
-#include "sqliteInt.h"
-#include "vdbeInt.h"
-
-#ifndef SQLITE_OMIT_TRACE
-
-/*
-** zSql is a zero-terminated string of UTF-8 SQL text. Return the number of
-** bytes in this text up to but excluding the first character in
-** a host parameter. If the text contains no host parameters, return
-** the total number of bytes in the text.
-*/
-static int findNextHostParameter(const char *zSql, int *pnToken){
- int tokenType;
- int nTotal = 0;
- int n;
-
- *pnToken = 0;
- while( zSql[0] ){
- n = sqlite3GetToken((u8*)zSql, &tokenType);
- assert( n>0 && tokenType!=TK_ILLEGAL );
- if( tokenType==TK_VARIABLE ){
- *pnToken = n;
- break;
- }
- nTotal += n;
- zSql += n;
- }
- return nTotal;
-}
-
-/*
-** This function returns a pointer to a nul-terminated string in memory
-** obtained from sqlite3DbMalloc(). If sqlite3.nVdbeExec is 1, then the
-** string contains a copy of zRawSql but with host parameters expanded to
-** their current bindings. Or, if sqlite3.nVdbeExec is greater than 1,
-** then the returned string holds a copy of zRawSql with "-- " prepended
-** to each line of text.
-**
-** If the SQLITE_TRACE_SIZE_LIMIT macro is defined to an integer, then
-** then long strings and blobs are truncated to that many bytes. This
-** can be used to prevent unreasonably large trace strings when dealing
-** with large (multi-megabyte) strings and blobs.
-**
-** The calling function is responsible for making sure the memory returned
-** is eventually freed.
-**
-** ALGORITHM: Scan the input string looking for host parameters in any of
-** these forms: ?, ?N, $A, @A, :A. Take care to avoid text within
-** string literals, quoted identifier names, and comments. For text forms,
-** the host parameter index is found by scanning the prepared
-** statement for the corresponding OP_Variable opcode. Once the host
-** parameter index is known, locate the value in p->aVar[]. Then render
-** the value as a literal in place of the host parameter name.
-*/
-char *sqlite3VdbeExpandSql(
- Vdbe *p, /* The prepared statement being evaluated */
- const char *zRawSql /* Raw text of the SQL statement */
-){
- sqlite3 *db; /* The database connection */
- int idx = 0; /* Index of a host parameter */
- int nextIndex = 1; /* Index of next ? host parameter */
- int n; /* Length of a token prefix */
- int nToken; /* Length of the parameter token */
- int i; /* Loop counter */
- Mem *pVar; /* Value of a host parameter */
- StrAccum out; /* Accumulate the output here */
- char zBase[100]; /* Initial working space */
-
- db = p->db;
- sqlite3StrAccumInit(&out, db, zBase, sizeof(zBase),
- db->aLimit[SQLITE_LIMIT_LENGTH]);
- if( db->nVdbeExec>1 ){
- while( *zRawSql ){
- const char *zStart = zRawSql;
- while( *(zRawSql++)!='\n' && *zRawSql );
- sqlite3StrAccumAppend(&out, "-- ", 3);
- assert( (zRawSql - zStart) > 0 );
- sqlite3StrAccumAppend(&out, zStart, (int)(zRawSql-zStart));
- }
- }else if( p->nVar==0 ){
- sqlite3StrAccumAppend(&out, zRawSql, sqlite3Strlen30(zRawSql));
- }else{
- while( zRawSql[0] ){
- n = findNextHostParameter(zRawSql, &nToken);
- assert( n>0 );
- sqlite3StrAccumAppend(&out, zRawSql, n);
- zRawSql += n;
- assert( zRawSql[0] || nToken==0 );
- if( nToken==0 ) break;
- if( zRawSql[0]=='?' ){
- if( nToken>1 ){
- assert( sqlite3Isdigit(zRawSql[1]) );
- sqlite3GetInt32(&zRawSql[1], &idx);
- }else{
- idx = nextIndex;
- }
- }else{
- assert( zRawSql[0]==':' || zRawSql[0]=='$' ||
- zRawSql[0]=='@' || zRawSql[0]=='#' );
- testcase( zRawSql[0]==':' );
- testcase( zRawSql[0]=='$' );
- testcase( zRawSql[0]=='@' );
- testcase( zRawSql[0]=='#' );
- idx = sqlite3VdbeParameterIndex(p, zRawSql, nToken);
- assert( idx>0 );
- }
- zRawSql += nToken;
- nextIndex = idx + 1;
- assert( idx>0 && idx<=p->nVar );
- pVar = &p->aVar[idx-1];
- if( pVar->flags & MEM_Null ){
- sqlite3StrAccumAppend(&out, "NULL", 4);
- }else if( pVar->flags & MEM_Int ){
- sqlite3XPrintf(&out, 0, "%lld", pVar->u.i);
- }else if( pVar->flags & MEM_Real ){
- sqlite3XPrintf(&out, 0, "%!.15g", pVar->u.r);
- }else if( pVar->flags & MEM_Str ){
- int nOut; /* Number of bytes of the string text to include in output */
-#ifndef SQLITE_OMIT_UTF16
- u8 enc = ENC(db);
- Mem utf8;
- if( enc!=SQLITE_UTF8 ){
- memset(&utf8, 0, sizeof(utf8));
- utf8.db = db;
- sqlite3VdbeMemSetStr(&utf8, pVar->z, pVar->n, enc, SQLITE_STATIC);
- sqlite3VdbeChangeEncoding(&utf8, SQLITE_UTF8);
- pVar = &utf8;
- }
-#endif
- nOut = pVar->n;
-#ifdef SQLITE_TRACE_SIZE_LIMIT
- if( nOut>SQLITE_TRACE_SIZE_LIMIT ){
- nOut = SQLITE_TRACE_SIZE_LIMIT;
- while( nOut<pVar->n && (pVar->z[nOut]&0xc0)==0x80 ){ nOut++; }
- }
-#endif
- sqlite3XPrintf(&out, 0, "'%.*q'", nOut, pVar->z);
-#ifdef SQLITE_TRACE_SIZE_LIMIT
- if( nOut<pVar->n ){
- sqlite3XPrintf(&out, 0, "/*+%d bytes*/", pVar->n-nOut);
- }
-#endif
-#ifndef SQLITE_OMIT_UTF16
- if( enc!=SQLITE_UTF8 ) sqlite3VdbeMemRelease(&utf8);
-#endif
- }else if( pVar->flags & MEM_Zero ){
- sqlite3XPrintf(&out, 0, "zeroblob(%d)", pVar->u.nZero);
- }else{
- int nOut; /* Number of bytes of the blob to include in output */
- assert( pVar->flags & MEM_Blob );
- sqlite3StrAccumAppend(&out, "x'", 2);
- nOut = pVar->n;
-#ifdef SQLITE_TRACE_SIZE_LIMIT
- if( nOut>SQLITE_TRACE_SIZE_LIMIT ) nOut = SQLITE_TRACE_SIZE_LIMIT;
-#endif
- for(i=0; i<nOut; i++){
- sqlite3XPrintf(&out, 0, "%02x", pVar->z[i]&0xff);
- }
- sqlite3StrAccumAppend(&out, "'", 1);
-#ifdef SQLITE_TRACE_SIZE_LIMIT
- if( nOut<pVar->n ){
- sqlite3XPrintf(&out, 0, "/*+%d bytes*/", pVar->n-nOut);
- }
-#endif
- }
- }
- }
- return sqlite3StrAccumFinish(&out);
-}
-
-#endif /* #ifndef SQLITE_OMIT_TRACE */
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