System.Data.SQLite

/*
** Versions of isspace(), isalnum() and isdigit() to which it is safe
** to pass signed char values.
*/
#ifdef sqlite3Isdigit
   /* Use the SQLite core versions if this routine is part of the
   ** SQLite amalgamation */
#  define safe_isdigit(x)  sqlite3Isdigit(x)
#  define safe_isalnum(x)  sqlite3Isalnum(x)
#  define safe_isxdigit(x) sqlite3Isxdigit(x)
#else
   /* Use the standard library for separate compilation */
#include <ctype.h>  /* amalgamator: keep */
#  define safe_isdigit(x)  isdigit((unsigned char)(x))
#  define safe_isalnum(x)  isalnum((unsigned char)(x))
#  define safe_isxdigit(x) isxdigit((unsigned char)(x))
#endif

/*
** Growing our own isspace() routine this way is twice as fast as
** the library isspace() function, resulting in a 7% overall performance
** increase for the parser.  (Ubuntu14.10 gcc 4.8.4 x64 with -Os).
*/

          char c = z[i];
          if( c!='\\' ){
            zOut[j++] = c;
          }else{
            c = z[++i];
            if( c=='u' ){
              u32 v = 0, k;
              for(k=0; k<4; i++, k++){
                assert( i<n-2 );
                c = z[i+1];
                assert( safe_isxdigit(c) );
                if( c<='9' ) v = v*16 + c - '0';
                else if( c<='F' ) v = v*16 + c - 'A' + 10;
                else v = v*16 + c - 'a' + 10;

              }
              if( v==0 ) break;
              if( v<=0x7f ){
                zOut[j++] = (char)v;
              }else if( v<=0x7ff ){
                zOut[j++] = (char)(0xc0 | (v>>6));
                zOut[j++] = 0x80 | (v&0x3f);

  p->eType = (u8)eType;
  p->jnFlags = 0;
  p->iVal = 0;
  p->n = n;
  p->u.zJContent = zContent;
  return pParse->nNode++;
}

/*
** Return true if z[] begins with 4 (or more) hexadecimal digits
*/
static int jsonIs4Hex(const char *z){
  int i;
  for(i=0; i<4; i++) if( !safe_isxdigit(z[i]) ) return 0;
  return 1;
}

/*
** Parse a single JSON value which begins at pParse->zJson[i].  Return the
** index of the first character past the end of the value parsed.
**
** Return negative for a syntax error.  Special cases:  return -2 if the
** first non-whitespace character is '}' and return -3 if the first

    u8 jnFlags = 0;
    j = i+1;
    for(;;){
      c = pParse->zJson[j];
      if( c==0 ) return -1;
      if( c=='\\' ){
        c = pParse->zJson[++j];
        if( c=='"' || c=='\\' || c=='/' || c=='b' || c=='f'
           || c=='n' || c=='r' || c=='t'
           || (c=='u' && jsonIs4Hex(pParse->zJson+j+1)) ){
          jnFlags = JNODE_ESCAPE;
        }else{
          return -1;
        }
      }else if( c=='"' ){
        break;
      }
      j++;
    }
    jsonParseAddNode(pParse, JSON_STRING, j+1-i, &pParse->zJson[i]);
    if( !pParse->oom ) pParse->aNode[pParse->nNode-1].jnFlags = jnFlags;

}
static void jsonObjectFinal(sqlite3_context *ctx){
  JsonString *pStr;
  pStr = (JsonString*)sqlite3_aggregate_context(ctx, 0);
  if( pStr ){
    jsonAppendChar(pStr, '}');
    if( pStr->bErr ){
      if( pStr->bErr==1 ) sqlite3_result_error_nomem(ctx);
      assert( pStr->bStatic );
    }else{
      sqlite3_result_text(ctx, pStr->zBuf, pStr->nUsed,
                          pStr->bStatic ? SQLITE_TRANSIENT : sqlite3_free);
      pStr->bStatic = 1;
    }
  }else{

        jsonEachComputePath(p, &x, p->sParse.aUp[p->i]);
        jsonResult(&x);
        break;
      }
      /* For json_each() path and root are the same so fall through
      ** into the root case */
    }
    default: {
      const char *zRoot = p->zRoot;
      if( zRoot==0 ) zRoot = "$";
      sqlite3_result_text(ctx, zRoot, -1, SQLITE_STATIC);
      break;
    }
    case JEACH_JSON: {
      assert( i==JEACH_JSON );
      sqlite3_result_text(ctx, p->sParse.zJson, -1, SQLITE_STATIC);
      break;

<h2><b>Version History</b></h2>

<p>
    <b>1.0.104.0 - December XX, 2016</b>
</p>
<ul>
    <li>Updated to <a href="https://www.sqlite.org/releaselog/3_15_1.html">SQLite 3.15.1</a>.</li>
    <li>Updated the <a href="https://www.sqlite.org/json1.html">JSON1</a> extension to check-in <a href="https://www.sqlite.org/src/info/b540984915">[b540984915]</a>.</li>
    <li>Add the &quot;%PreLoadSQLite_AssemblyDirectory%&quot;, &quot;%PreLoadSQLite_TargetFramework%&quot;, and &quot;%PreLoadSQLite_XmlConfigDirectory%&quot; <a href="https://system.data.sqlite.org/index.html/artifact?ci=trunk&filename=Doc/Extra/Provider/environment.html">replacement tokens</a> for use in configuration setting values. Pursuant to [d4728aecb7].</li>
    <li>Prevent the GetByte, GetChar, and GetInt16 methods of the SQLiteDataReader class from throwing exceptions for large integer values. Pursuant to [5535448538].&nbsp;<b>** Potentially Incompatible Change **</b></li>
</ul>
<p>
    <b>1.0.103.0 - September 15, 2016</b>
</p>
<ul>

<title>News</title>

<b>Version History</b>

<p>
    <b>1.0.104.0 - December XX, 2016</b>
</p>
<ul>
    <li>Updated to [https://www.sqlite.org/releaselog/3_15_1.html|SQLite 3.15.1].</li>
    <li>Updated the [https://www.sqlite.org/json1.html|JSON1] extension to check-in [https://www.sqlite.org/src/info/b540984915|b540984915].</li>
    <li>Add the &quot;%PreLoadSQLite_AssemblyDirectory%&quot;, &quot;%PreLoadSQLite_TargetFramework%&quot;, and &quot;%PreLoadSQLite_XmlConfigDirectory%&quot; [https://system.data.sqlite.org/index.html/artifact?ci=trunk&filename=Doc/Extra/Provider/environment.html|replacement tokens] for use in configuration setting values. Pursuant to [d4728aecb7].</li>
    <li>Prevent the GetByte, GetChar, and GetInt16 methods of the SQLiteDataReader class from throwing exceptions for large integer values. Pursuant to [5535448538].&nbsp;<b>** Potentially Incompatible Change **</b></li>
</ul>
<p>
    <b>1.0.103.0 - September 15, 2016</b>
</p>
<ul>

<ul>
    <li>Add the correct directory to the path. Fix for [50515a0c8e].</li>
</ul>
<p>
    <b>1.0.71.0 - April 27, 2011</b>
</p>
<ul>
    <li>Updated to SQLite 3.7.6+ [https://www.sqlite.org/src/info/1bd1484cd7 | &#91;1bd1484cd7&#93;] to get additional Windows error logging.</li>
    <li>Updated setup to optionally add install directory to PATH if GAC option selected.</li>
</ul>
<p>
    <b>1.0.70.0 - April 22, 2011</b>
</p>
<ul>
    <li>Added support for sqlite3_extended_result_codes(), sqlite3_errcode(), and sqlite3_extended_errcode() via SetExtendedResultCodes(), ResultCode(), and ExtendedResultCode().</li>