ASL Change string with binary data to numbers

Unfortunately there isn't an easy straight forward method to convert the Binary data from a string into numbers.  The only way to accomplish this is via ASL.  I will get you an example script.

Hi Nate,

That would be great!

I already have an ASL script hooked up to the event but couldn't figure out how to get the underlying numbers from the string. Looking through the ASL manual I didn't find anything else than using substring to get one char, but can't think of  way to change that into a number.

Regards, Ron

Haven't forgotten about you.  This isn't documented because its not easily done.  But I'm trying to find a work around for you.

alright I have a sample asl file that will convert a binary string to its equivalent decimal value.  Hopefully this will help.

Here is a Sample output from testing:

./sm_adapter.exe binary2decimal.asl |tee

Binary to decimal conversion

101

10

I hope this get you in the right direction.

Cheers for you patience.

here is the script.... START() {   .. eol } do { print("Binary to decimal conversion"); BINARYSTRING_TO_NUMERIC(1100101); BINARYSTRING_TO_NUMERIC(1010); } BINARYSTRING_TO_NUMERIC(binaryString) do {     charIndx = sizeOf(binaryString) - 1;     multiplier = 1;     numericValue = 0;     while (charIndx > -1) {     //print(charIndx);         numericValue = numericValue + numeric(substring(binaryString, charIndx, 1)) * multiplier;         multiplier = multiplier * 2;         charIndx = charIndx -1;     }     print(numericValue); }

Hi Nate,

Sorry, for the late reply (I was off for a few weeks). Thank you for your script, I studied it (good learning material :-)  ) however it seems to turn a string with binary number like '10100010' into a decimal.

My problem is unfortunately that from a trap we get a string where the characters themselves are the decimals so in C++ it would be

http://cpp.sh/9ifnk

// 20161011 What we need in smarts some function like CastNumSubstr( String, CharOffset )
#include 
#include 


using namespace std;
int main()
{
  std::string IPAddress;
  IPAddress.resize( 4 );


  IPAddress[ 0 ] = static_cast( 172 );
  
  IPAddress[ 1 ] = static_cast( 0   );
  
  IPAddress[ 2 ] = static_cast( 0   );
  
  IPAddress[ 3 ] = static_cast( 1   );
  


  cout << "-- String we have in smarts (well actually smarts probably uses UTF8 so 'wchar' but the idea is the same) " << endl;
  std::cout << IPAddress << endl;


  cout << "--  What we need " << endl;
  std::cout << static_cast( static_cast
   ( IPAddress[ 0 ] ) ) << "."
   
  
            << static_cast( static_cast
   ( IPAddress[ 1 ] ) ) << "."
   
  
            << static_cast( static_cast
   ( IPAddress[ 2 ] ) ) << "."
   
  
            << static_cast( static_cast
   ( IPAddress[ 3 ] ) ) << endl
   
  
            ;


  // Just prevent terminal from closing directly
  {
    string Dummy;
    cout << endl << "Press enter to close program: ";
    getline (std::cin, Dummy );
  }


  return 0;




}

Regards, Ron

Hi Raghu,

Great, thanks! It worked. I created an example below with the suggestion you gave me in case someone else has the same problem.

Example created with the advice from Raghu

(this is for changing binary data into a readable string for converting a string with a binary number to decimal see Nate's answer above.)

C++ code to create a test file execute as:
g++ test.cc ./a.out

Code:

#include 

using namespace std;


int main()
{
  char Chars[] = { 192, 168, 50, 77, ' ' };

  ofstream Output( "/tmp/ron", ios_base::binary );

  for( char *SPtr = &Chars[ 0 ], *EPtr = &Chars[ 0 ] + sizeof( Chars ); SPtr != EPtr; ++SPtr )
  {
    Output << *SPtr;
  }
  Output << endl;

}

ASL Script execute as:

sm_adapter --server=INCHARGE-AM-PM --file=/tmp/ron test.asl

Code:

// -- Script changing binary ip address into readable text

SM_System = object(getInstances("SM_System")[0]);

START
{
  ipaddress:word ..eol
}
do
{

  if ( SM_System->isNull() )
  {
    print( "Could not retrieve object SM_System" );
    return;
  }
  // -- Print the address as it appears in the console ( interpreted by the system as UTFx )
  print( "ipaddress = ".ipaddress );

  // -- Conversion back to a readable IP Address
  print( "Int = ".SM_System->stringToByte( substring( ipaddress, 0, 1 ) ) );
  print( "Int = ".SM_System->stringToByte( substring( ipaddress, 1, 1 ) ) );
  print( "Int = ".SM_System->stringToByte( substring( ipaddress, 2, 1 ) ) );
  print( "Int = ".SM_System->stringToByte( substring( ipaddress, 3, 1 ) ) );
}

Output asl script

sm_adapter --server=INCHARGE-AM-PM --file=/tmp/ron test.asl
ipaddress = �2M
Int = 192
Int = 168
Int = 50
Int = 77