String#dump and quotes

Just out of curiosity, why are double quotes added to the start and end
of the string when doing String#dump? I can see where it’s happening
in string.c, but I don’t understand the purpose.

Thanks,

Dan

Daniel B. wrote:

Just out of curiosity, why are double quotes added to the start and end
of the string when doing String#dump? I can see where it’s happening
in string.c, but I don’t understand the purpose.

I think it’s just for looks, to emphasize that it’s a string.
Like String#inspect.

FWIW, I think if you eval a dump, you get the original string back.
I think that’s correct. But it may be just a side effect.

Hal

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 2005.12.17 15:37, “Daniel B.” [email protected] wrote:

Just out of curiosity, why are double quotes added to the start and end
of the string when doing String#dump? I can see where it’s happening
in string.c, but I don’t understand the purpose.

I venture as my guess that it is merely intended to allow
storing an ‘internal’ representation of the String. It looks
like all special characters are escaped. This might be useful
for, say, #eval or debugging maybe?

‘foo’.dump # => ““foo””
“\nf”.dump # => “”\nf""

Thanks,

Dan

E
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.1 (GNU/Linux)

iD8DBQFDo70LxvA1l6h+MUMRAlgSAJ9Q7G+i7OrUtmm1P1eE67mbBzHmSQCgibwd
fJ7fffK1TP1SXfIBuaPyvc4=
=dM1n
-----END PGP SIGNATURE-----

Ross B. wrote:

On Sat, 17 Dec 2005 06:42:18 -0000, Hal F.
[email protected] wrote:

FWIW, I think if you eval a dump, you get the original string back.
I think that’s correct. But it may be just a side effect.

I assumed that was the point of the quotes and the escaping it does ?

It may well be. I’ve just never seen that documented.

I’ve rarely used dump anyway.

Hal

On Sat, 17 Dec 2005 06:42:18 -0000, Hal F.
[email protected]
wrote:

I assumed that was the point of the quotes and the escaping it does ?

This forum is not affiliated to the Ruby language, Ruby on Rails framework, nor any Ruby applications discussed here.

| Privacy Policy | Terms of Service | Remote Ruby Jobs