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Overview
Comment:In setQuotedToken(), only make a malloced copy if the argument contains one or more " characters. (CVS 4941)
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SHA1: b266924b8975b69bdb9ab45cf462e41436f89cc2
User & Date: danielk1977 2008-03-31 17:41:18.000
Context
2008-03-31
18:19
Factor constant subexpressions out of loops. (CVS 4942) (check-in: 2126db3985 user: drh tags: trunk)
17:41
In setQuotedToken(), only make a malloced copy if the argument contains one or more " characters. (CVS 4941) (check-in: b266924b89 user: danielk1977 tags: trunk)
2008-03-29
23:25
Minor cleanup: Use size_t for struct size cast (CVS 4940) (check-in: 618df68b8b user: mlcreech tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/select.c.
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**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.422 2008/03/27 17:59:02 danielk1977 Exp $
*/
#include "sqliteInt.h"


/*
** Delete all the content of a Select structure but do not deallocate
** the select structure itself.








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**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.423 2008/03/31 17:41:18 danielk1977 Exp $
*/
#include "sqliteInt.h"


/*
** Delete all the content of a Select structure but do not deallocate
** the select structure itself.
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/*
** Set the token to the double-quoted and escaped version of the string pointed
** to by z. For example;
**
**    {a"bc}  ->  {"a""bc"}
*/
static void setQuotedToken(Parse *pParse, Token *p, const char *z){














  p->z = (u8 *)sqlite3MPrintf(0, "\"%w\"", z);
  p->dyn = 1;
  if( p->z ){
    p->n = strlen((char *)p->z);


  }else{



    pParse->db->mallocFailed = 1;
  }
}

/*
** Create an expression node for an identifier with the name of zName
*/
Expr *sqlite3CreateIdExpr(Parse *pParse, const char *zName){








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/*
** Set the token to the double-quoted and escaped version of the string pointed
** to by z. For example;
**
**    {a"bc}  ->  {"a""bc"}
*/
static void setQuotedToken(Parse *pParse, Token *p, const char *z){

  /* Check if the string contains any " characters. If it does, then
  ** this function will malloc space to create a quoted version of
  ** the string in. Otherwise, save a call to sqlite3MPrintf() by
  ** just copying the pointer to the string.
  */
  const char *z2 = z;
  while( *z2 ){
    if( *z2=='"' ) break;
    z2++;
  }

  if( *z2 ){
    /* String contains " characters - copy and quote the string. */
    p->z = (u8 *)sqlite3MPrintf(pParse->db, "\"%w\"", z);

    if( p->z ){
      p->n = strlen((char *)p->z);
      p->dyn = 1;
    }
  }else{
    /* String contains no " characters - copy the pointer. */
    p->z = (u8*)z;
    p->n = (z2 - z);
    p->dyn = 0;
  }
}

/*
** Create an expression node for an identifier with the name of zName
*/
Expr *sqlite3CreateIdExpr(Parse *pParse, const char *zName){
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