220 20538 article Path: news.gmane.org!not-for-mail From: Andrew Tomazos Newsgroups: gmane.comp.lang.c++.isocpp.proposals Subject: Re: Re: Rough Draft Proposal of Interpolated String Literals Date: Mon, 21 Sep 2015 00:44:29 +0200 Lines: 134 Approved: news@gmane.org Message-ID: References: <680cc175-12e5-4027-aa9d-ade90f00445e@isocpp.org> Reply-To: std-proposals@isocpp.org NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/alternative; boundary=f46d0418270cfc13890520358106 X-Trace: ger.gmane.org 1442789072 28264 80.91.229.3 (20 Sep 2015 22:44:32 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 20 Sep 2015 22:44:32 +0000 (UTC) To: "std-proposals@isocpp.org" Original-X-From: std-proposals+bncBD5KHQXXWYPRBTXN7SXQKGQEL7445OQ@isocpp.org Mon Sep 21 00:44:32 2015 Return-path: Envelope-to: gclcip-std-proposals@m.gmane.org Original-Received: from mail-la0-f69.google.com ([209.85.215.69]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1ZdnLT-0007Px-R8 for gclcip-std-proposals@m.gmane.org; Mon, 21 Sep 2015 00:44:31 +0200 Original-Received: by lagj9 with SMTP id j9sf37015326lag.0 for ; Sun, 20 Sep 2015 15:44:31 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=YLTUPDbrE+K31mgSghDHgF0FQdjvP1p2wNEogHfoFtg=; b=m4QTXbHQLbVbEyumi029+VlOB+VxKeygECgrZyfkhH/h2nS/7SAk7eb98jWKVydY0e s43IQ0IdGeEvRZFw9i3V124tsERgFbN1znxdqPdnR9KzFEZhtCDhEyel72ygtVx/yTsP NxSk5Qnj6bhl0TQiyqSLXogmxeSWgNip+lTNgctOWhr0/r4Ty/i1hHA/Ftv7xR7jMI9y pgDrYgbFW3cQas6qBreB/qwkukBdgGo2XD+ghSaBZNx0r+1Bqrua43M/d+ttsXnVAceI e76wzzT60QXiNBBasw7bj2tNsC7qBboSzcKgtQ0LXxwy7jznlbzgmpvCKQXKY41ujNpB OftA== X-Gm-Message-State: ALoCoQmWHWsBEH9U0uBjKCUrdfXQh71QwC2FJzTKE49lsKU0F8g79lSQBdEYdo3AVna+bkjQDgJS X-Received: by 10.194.109.233 with SMTP id hv9mr2705880wjb.1.1442789071003; Sun, 20 Sep 2015 15:44:31 -0700 (PDT) X-BeenThere: std-proposals@isocpp.org Original-Received: by 10.180.107.199 with SMTP id he7ls572361wib.16.canary; Sun, 20 Sep 2015 15:44:30 -0700 (PDT) X-Received: by 10.180.74.47 with SMTP id q15mr10681694wiv.73.1442789070078; Sun, 20 Sep 2015 15:44:30 -0700 (PDT) Original-Received: from mail-wi0-x231.google.com (mail-wi0-x231.google.com. [2a00:1450:400c:c05::231]) by mx.google.com with ESMTPS id m18si13447998wij.54.2015.09.20.15.44.30 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 20 Sep 2015 15:44:30 -0700 (PDT) Received-SPF: pass (google.com: domain of andrewtomazos@gmail.com designates 2a00:1450:400c:c05::231 as permitted sender) client-ip=2a00:1450:400c:c05::231; Original-Received: by wicfx3 with SMTP id fx3so89092857wic.0 for ; Sun, 20 Sep 2015 15:44:29 -0700 (PDT) X-Received: by 10.180.104.40 with SMTP id gb8mr10202098wib.17.1442789069688; Sun, 20 Sep 2015 15:44:29 -0700 (PDT) Original-Received: by 10.28.73.137 with HTTP; Sun, 20 Sep 2015 15:44:29 -0700 (PDT) In-Reply-To: <680cc175-12e5-4027-aa9d-ade90f00445e@isocpp.org> X-Original-Sender: andrewtomazos@gmail.com X-Original-Authentication-Results: mx.google.com; spf=pass (google.com: domain of andrewtomazos@gmail.com designates 2a00:1450:400c:c05::231 as permitted sender) smtp.mailfrom=andrewtomazos@gmail.com; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=gmail.com Precedence: list Mailing-list: list std-proposals@isocpp.org; contact std-proposals+owners@isocpp.org List-ID: X-Spam-Checked-In-Group: std-proposals@isocpp.org 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:20538 Archived-At: --f46d0418270cfc13890520358106 Content-Type: text/plain; charset=UTF-8 As proposed, you can. We call them embedded general expressions: std::cout F"# #{a} + #{b} = #{a + b}"; // Prints "1 + 2 = 3" As does: std::cout F"# #a + #b = #{a + b}"; // Prints "1 + 2 = 3" On Mon, Sep 21, 2015 at 12:36 AM, wrote: > One major problem with this is that it is only possible to interpolate > named variables, not arbitrary values. This means that it would be > impossible to interpolate an element of an array or the result of a > function call. I would prefer something like Ruby's #{ .. } interpolation > syntax, where you can do something like > > a = 1 > b = 2 > puts "#{a} + #{b} = #{a + b}" # Prints "1 + 2 = 3" > > > Joe Gottman > > On Friday, September 18, 2015 at 4:22:01 PM UTC-4, Andrew Tomazos wrote: >> >> Please find attached a very very rough draft of a proposal entitled >> "Interpolated String Literals". >> >> Mainly after encouragement or discouragement, and any high-level thoughts >> you might have about it. >> >> -- > > --- > 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 > email to std-proposals+unsubscribe@isocpp.org. > To post to this group, send email to std-proposals@isocpp.org. > Visit this group at > http://groups.google.com/a/isocpp.org/group/std-proposals/. > -- --- 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 email to std-proposals+unsubscribe@isocpp.org. To post to this group, send email to std-proposals@isocpp.org. Visit this group at http://groups.google.com/a/isocpp.org/group/std-proposals/. --f46d0418270cfc13890520358106 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
As proposed, you can.=C2=A0 We call them embedded general = expressions:

=C2=A0 =C2=A0std::cout F"# #{a} + #{b}= =3D #{a + b}";
=C2=A0 =C2=A0//=C2=A0Pri= nts "1 + 2 =3D 3"

As does:

=C2=A0 =C2=A0std::cout F"# #a + #b =3D #{a + = b}";
=C2=A0 =C2=A0//=C2=A0Prints = "1 + 2 =3D 3"


On Mon, Sep 21, 2015 at 12:36 AM, <jgo= ttman6@gmail.com> wrote:
One major problem with this is that it is only possible to interpolate nam= ed variables, not arbitrary values.=C2=A0 This means that it would be impos= sible to interpolate an element of an array or the result of a function cal= l.=C2=A0 I would prefer something like Ruby's #{ .. }=C2=A0 interpolati= on syntax, where you can do something like

a =3D 1b =3D 2
puts "#{a} + #{b} =3D #{a + b}" # Prints "1 + 2 =3D 3&q= uot;
<= br>
Joe Gottman

On Friday, September 18, 2015 at= 4:22:01 PM UTC-4, Andrew Tomazos wrote:
P= lease find attached a very very rough draft of a proposal entitled "In= terpolated String Literals".

Mainly after encourage= ment or discouragement, and any high-level thoughts you might have about it= ..

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