-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi!
I should call it string-conc, conc-string, or conc->string. I should not expect from first sight that either, string+ or string*, would concatenate. From those names, it also would seem surprising that they can take any sequences, not just strings, as arguments. I see the main merit of creating such a function of reduced generality in that you can pass it around as a simple #'string-conc instead of (lambda (&rest sequences) (apply #'concatenate 'string sequences)). Best wishes Svante Am 21.01.2011 11:20, schrieb Tord Romstad: > On Thu, Jan 20, 2011 at 10:22 PM, karol skocik <karol.sko...@gmail.com> wrote: >> Some time ago, I tried to communicate on IRC channel about a very, >> very simple addition: >> string+, which is obviously a nice, small name for (apply >> #'concatenate 'string strings). > > Pet peeve: string+ is a *small* name, but it is not a *nice* name for > string concatenation. Additive notation for string concatenation is > extremely ugly and counter-intuitive for anyone who has studied > mathematics. It is extremely annoying that C++, JavaScript and a few > other languages have adopted this convention. Additive notation is > normally used for commutative operations, which string concatenation > is not. > > There already is a standard notation for string concatenation, from > long before the days of computers and programming languages. > Mathematically, strings under concatenation is the free monoid > (http://en.wikipedia.org/wiki/Monoid) over the set of all available > characters. The single binary operation in a non-commutative monoid is > nearly always written as multiplication. And even if you don't know > anything about abstract algebra, multiplicative notation makes much > more sense: After all, even in elementary high school algebra, abc*de > equals abcde, but abc+de does not. > > Therefore, if you really need a function for string concatenation and > want to share it with the world, please name it string*, not string+ > > Tord > > _______________________________________________ > pro mailing list > pro@common-lisp.net > http://common-lisp.net/cgi-bin/mailman/listinfo/pro > - -- Svante Carl v. Erichsen Wentorfer Str. 96 21029 Hamburg +49-(0)40-34923721 +49-(0)160-6941474 svante.v.erich...@web.de -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.16 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk05Z28ACgkQFZBb0npmKszsaACfakZ+2dcC/DXGkB1sfbiNhEL4 CJEAn23exdW3M6E7LFGIFV539p2r6Tgv =quCk -----END PGP SIGNATURE----- _______________________________________________ pro mailing list pro@common-lisp.net http://common-lisp.net/cgi-bin/mailman/listinfo/pro