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sqlite3.c  view on Meta::CPAN

    u32 j;
    if( zPath==0 ) goto json_extract_error;
    nPath = sqlite3Strlen30(zPath);
    if( zPath[0]=='$' ){
      j = jsonLookupStep(p, 0, zPath+1, 0);
    }else if( (flags & JSON_ABPATH) ){
      /* The -> and ->> operators accept abbreviated PATH arguments.  This
      ** is mostly for compatibility with PostgreSQL, but also for
      ** convenience.
      **
      **     NUMBER   ==>  $[NUMBER]     // PG compatible
      **     LABEL    ==>  $.LABEL       // PG compatible
      **     [NUMBER] ==>  $[NUMBER]     // Not PG.  Purely for convenience
      */
      jsonStringInit(&jx, ctx);
      if( sqlite3_value_type(argv[i])==SQLITE_INTEGER ){
        jsonAppendRawNZ(&jx, "[", 1);
        jsonAppendRaw(&jx, zPath, nPath);
        jsonAppendRawNZ(&jx, "]", 2);
      }else if( jsonAllAlphanum(zPath, nPath) ){
        jsonAppendRawNZ(&jx, ".", 1);
        jsonAppendRaw(&jx, zPath, nPath);
      }else if( zPath[0]=='[' && nPath>=3 && zPath[nPath-1]==']' ){