perlperl-data-structures

How To Convert a Hexadecimal String into Byte Array using Perl


I Would Like to convert an Hexadecimal String Say

[0] =0x4A ,[1] =0x06 ,[2] =0x0E ,[3] =0xF1 ,[4] =0x95 ,[5] =0x3B ,[6] =0xD9 ,[7] =0x90 ,[8] =0x5B ,[9] =0x63 ,[10]=0xCA ,[11]=0xA9 ,[12]=0x37 ,[13]=0xC8 ,[14]=0x8D ,[15]=0xDA ,[16]=0x64 ,[17]=0x82 ,[18]=0x99 ,[19]=0x9F ,[20]=0xE1 ,[21]=0x1A ,[22]=0x3B ,[23]=0xB6 ,[24]=0xFC ,[25]=0x68 ,[26]=0xC0 ,[27]=0xD2 ,[28]=0x7B ,[29]=0x01 ,[30]=0x21 ,[31]=0xDD }

into byte array as

4A060EF1953BD9905B63CAA937C88DDA6482999FE11A3BB6FC68C0D27B0121DD

and vice -versa, could somebody please suggest?


Solution

  • $str = '[0] =0x4A ,[1] =0x06 ,[2] =0x0E ,[3] =0xF1 ,[4] =0x95 ,[5] =0x3B ,[6] =0xD9 ,[7] =0x90 ,[8] =0x5B ,[9] =0x63 ,[10]=0xCA ,[11]=0xA9 ,[12]=0x37 ,[13]=0xC8 ,[14]=0x8D ,[15]=0xDA ,[16]=0x64 ,[17]=0x82 ,[18]=0x99 ,[19]=0x9F ,[20]=0xE1 ,[21]=0x1A ,[22]=0x3B ,[23]=0xB6 ,[24]=0xFC ,[25]=0x68 ,[26]=0xC0 ,[27]=0xD2 ,[28]=0x7B ,[29]=0x01 ,[30]=0x21 ,[31]=0xDD';
    $str =~ s/\s*,?\[.*?\]\s*=0x//gi;
    print $str, "\n";
    $str =~ s/([0-9A-F]{2})/0x$1, /gi;
    print $str, "\n";