220 33077 <2600543.LJIS3b602g@tjmaciei-mobl1> article Path: news.gmane.org!.POSTED!not-for-mail From: Thiago Macieira Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Why are there no standardized string manipulation algorithms ? Date: Mon, 03 Jul 2017 12:02:32 -0700 Lines: 48 Approved: news@gmane.org Message-ID: <2600543.LJIS3b602g@tjmaciei-mobl1> References: <02cf02f4-df2e-4eb0-adcf-a7d167cd7e56@isocpp.org> <2585094.muaacRduSE@tjmaciei-mobl1> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Trace: blaine.gmane.org 1499108560 12631 195.159.176.226 (3 Jul 2017 19:02:40 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Mon, 3 Jul 2017 19:02:40 +0000 (UTC) Cc: Bengt Gustafsson To: std-proposals@isocpp.org Original-X-From: std-proposals+bncBCB4TK757YBRBS5J5LFAKGQEII2JHJY@isocpp.org Mon Jul 03 21:02:36 2017 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-pf0-f199.google.com ([209.85.192.199]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dS6cC-0002nt-1u for gclcip-std-proposals@m.gmane.org; Mon, 03 Jul 2017 21:02:32 +0200 Original-Received: by mail-pf0-f199.google.com with SMTP id v9sf208261991pfk.5 for ; 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[78.47.120.188]) by mx.google.com with ESMTP id v132si12608717ith.35.2017.07.03.12.02.35 for ; Mon, 03 Jul 2017 12:02:35 -0700 (PDT) Received-SPF: pass (google.com: domain of thiago@macieira.org designates 78.47.120.188 as permitted sender) client-ip=78.47.120.188; Original-Received: from tjmaciei-mobl1.localnet (unknown [IPv6:2601:1c0:4501:5f9f:9c08:b220:419:2a84]) by gondolin.macieira.info (Postfix) with ESMTPSA id 81F4311B5A6; Mon, 3 Jul 2017 12:02:34 -0700 (PDT) In-Reply-To: X-Original-Sender: thiago@macieira.org X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of thiago@macieira.org designates 78.47.120.188 as permitted sender) smtp.mailfrom=thiago@macieira.org Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Google-Group-Id: 399137483710 List-Post: , List-Help: , List-Archive: List-Subscribe: , List-Unsubscribe: , Xref: news.gmane.org gmane.comp.lang.c++.isocpp.proposals:33077 Archived-At: On segunda-feira, 3 de julho de 2017 11:49:38 PDT Bengt Gustafsson wrote: > Isn't this code already inside the ctype towupper/twlower functions: >=20 > http://en.cppreference.com/w/cpp/string/wide/towupper No, By the simple signature of the function, it's impossible: std::wint_t towupper( std::wint_t ch ); Compare to: QString("=C3=9F").toUpper() which produces QString("SS"). > I would imagine that the stringwise tolower/toupper functions would just = be > a loop around the corresponding character-wise functions. Yeah, that's the wrong implementation. > This brings out > the subject of defining the locale of the character set, which it seems > appropriate to have versions for explicitly and implicitly defining. Mayb= e > the somewhat messy nature of locales/facets and their scary application > wide settability is what has held proposals for this feature back? Right... there's the locale aspect. The Unicode case changing algorithms ar= e=20 complex enough as it is. And then there's Turkish, where towupper('i') =3D L'=C4=B0' and towlower('I= ') =3D L'=C4=B1'. --=20 Thiago Macieira - thiago (AT) macieira.info - thiago (AT) kde.org Software Architect - Intel Open Source Technology Center --=20 You received this message because you are subscribed to the Google Groups "= ISO C++ Standard - Future Proposals" group. To unsubscribe from this group and stop receiving emails from it, send an e= mail to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. To view this discussion on the web visit https://groups.google.com/a/isocpp= ..org/d/msgid/std-proposals/2600543.LJIS3b602g%40tjmaciei-mobl1. .