convertToNumberTokenImpl Struct Reference

#include <grammar_common.h>

Classes
struct	result

Public Types
typedef std::string	result_type

Public Member Functions
template<typename T >
result_type	operator() (T arg) const
std::string	convert (char lowerbyte) const

Detailed Description

Convert byte to number according to the FIPA definition

Definition at line 254 of file grammar_common.h.

Member Typedef Documentation

typedef std::string convertToNumberTokenImpl::result_type

Definition at line 256 of file grammar_common.h.

Member Function Documentation

std::string convertToNumberTokenImpl::convert ( char  lowerbyte ) const

inline

Definition at line 283 of file grammar_common.h.

        {
            // make sure high order bytes are set to 0  
            lowerbyte &= 0x0F;  
            
            // There will be more efficient ways to do that, but for clarity
            switch(lowerbyte)
            {
                case 0x00: return "";
                case 0x01: return "0";
                case 0x02: return "1";
                case 0x03: return "2";
                case 0x04: return "3";
                case 0x05: return "4";
                case 0x06: return "5";
                case 0x07: return "6";
                case 0x08: return "7";
                case 0x09: return "8";
                case 0x0a: return "9";
                case 0x0c: return "+";
                case 0x0d: return "E";
                case 0x0e: return "-";
                case 0x0f: return ".";
                default: return "";
            }
        }

template<typename T >

result_type convertToNumberTokenImpl::operator() ( T  arg ) const

inline

Definition at line 265 of file grammar_common.h.

        {

            // Each bytes contains two numbers: 
            // one in the highbytes and one in the lowerbytes
            char highbytes = arg;
            char lowerbytes = arg;

            // Shift to lowerbytes so that we can use the convert 
            // function here as well
            highbytes >>= 4;

            std::string tmp = convert(highbytes);
            tmp += convert(lowerbytes);

            return std::string(tmp);
        }

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The documentation for this struct was generated from the following file:

• /build/rock-master-18.09-multiagent-fipa-acl-0.20180914/src/message_parser/grammar/grammar_common.h