Converting numeric bytes to character representation [duplicate]

Question

I have the following numeric bytes that I would like to find out the character representation for, where/how do I do this?

239 187 191 104

What encoding are they in? Without knowing that, it's impossible to answer. — Jörg W Mittag
– Jörg W Mittag, Commented Jan 19, 2015 at 13:15

Andrey Deineko · Accepted Answer · 2015-01-19 11:04:37Z

1

Call chr method on each of these:

[239, 187, 191, 104].map(&:chr)
#=> ["\xEF", "\xBB", "\xBF", "h"]


# tilde, the last printable character
126.chr
#=> "~"

I think starting 127 would be non-standard chars

answered Jan 19, 2015 at 10:50

Andrey Deineko

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2 Comments

Just a follow-up, "h" makes sense, but the others not - any idea how I can understand what they "mean"?

@Numbers I am sure it is some non-standart chars, but truly to say don't know yet how to understand it

Ivaylo Strandjev · Accepted Answer · 2015-01-19 10:50:28Z

1

Use the method chr of fixnum. Like so:

239.chr => "\xEF"

If your input is a space separated string, you may use split and map:

"239 187 191 104".split.map(&:to_i).map(&:chr)

answered Jan 19, 2015 at 10:50

Ivaylo Strandjev

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