From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.5-pre1 (2020-06-20) on ip-172-31-74-118.ec2.internal X-Spam-Level: X-Spam-Status: No, score=-1.9 required=3.0 tests=BAYES_00 autolearn=ham autolearn_force=no version=3.4.5-pre1 Path: eternal-september.org!reader02.eternal-september.org!aioe.org!5WHqCw2XxjHb2npjM9GYbw.user.gioia.aioe.org.POSTED!not-for-mail From: "Dmitry A. Kazakov" Newsgroups: comp.lang.ada Subject: Re: Ada and Unicode Date: Mon, 19 Apr 2021 11:34:26 +0200 Organization: Aioe.org NNTP Server Message-ID: References: <607b5b20$0$27442$426a74cc@news.free.fr> <86mttuk5f0.fsf@stephe-leake.org> NNTP-Posting-Host: 5WHqCw2XxjHb2npjM9GYbw.user.gioia.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-Complaints-To: abuse@aioe.org User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.9.1 Content-Language: en-US X-Notice: Filtered by postfilter v. 0.9.2 Xref: reader02.eternal-september.org comp.lang.ada:61834 List-Id: On 2021-04-19 11:08, Stephen Leake wrote: > (I've never written a program that dealt with utf strings other than > file names). > > -gnati8 tells the compiler that the source code uses utf-8 encoding. > > -gnatW8 tells the compiler that string literals use utf-8 encoding. Both are recipes for disaster, especially the second. IMO the source must be strictly ASCII 7-bit. It is less dangerous to have UTF-8 or Latin-1 identifiers, they could be at least checked, except when used for external names. But string literals would be a ticking bomb. If you need a wider set than ASCII, use named constants and integer literals. E.g. Celsius : constant String := Character'Val (16#C2#) & Character'Val (16#B0#) & 'C'; > We could be more helpful if you show what you are trying to do, you've > tried, and what errors you got. True -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de