Re: Hex String XOR

Glad you have something working to your satisfaction!

Maybe not relevant here, but for future reference, there is a POSIX character class [:print:] that can be used in a Perl regex to emulate the C isprint() function. Throwing "non-printable" control characters to a terminal interface can cause "troubles" to say the least. Basically this character class says whether or not the "printer" can render this ASCII character on the screen.

Comment on Re: Hex String XOR Download Code

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Re^2: Hex String XOR by JavaFan (Canon) on Mar 12, 2012 at 11:16 UTC
Or, one could embrace the 21st century and use `/\p{Print}/` instead of `/[:print:]/`. No need to restrict yourself to 256 code points, and subject yourself to locale. The era of 5.005 is over! `;-)`	[reply] [d/l] [select]
Re^3: Hex String XOR by Marshall (Canon) on Mar 12, 2012 at 12:31 UTC
Your point is well taken, however from the problem statement in this case, it appears that "bytes" are the unit of interest.	[reply]
Re^4: Hex String XOR by Anonymous Monk on Jun 23, 2015 at 13:08 UTC
it is wrong method	[reply]