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: ANN: Ada Resource Embedder for C, Ada and Go Date: Fri, 11 Jun 2021 20:25:55 +0200 Organization: Aioe.org NNTP Server Message-ID: References: <34845325-0cb5-43ee-a03f-df95a8df1f22n@googlegroups.com> NNTP-Posting-Host: 5WHqCw2XxjHb2npjM9GYbw.user.gioia.aioe.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit X-Complaints-To: abuse@aioe.org User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0 Content-Language: en-US X-Notice: Filtered by postfilter v. 0.9.2 Xref: reader02.eternal-september.org comp.lang.ada:62181 List-Id: On 2021-06-11 19:32, Stephane Carrez wrote: > Le vendredi 11 juin 2021 à 18:19:18 UTC+2, Dmitry A. Kazakov a écrit : >> On 2021-06-11 15:51, Stéphane Rivière wrote: >>> Hi Stephane, >>> >>>> I created a new tool to allow embedding any file in an Ada, C or Go binary. >>> >>> This is typically what I needed to improve my current AIDE v2 project >>> (Ada Instant Development Environment - source GNAT CE 2019 2020 2021 - >>> target Debian / Ubuntu with subtarget station (with GNATStudio, HAC, >>> libs, debug aware RTS, and goodies) or server (bare minimal). >> I considered embedding into relocatable libraries similar to Windows' >> resource, e.g. for versioning plugins etc, but then decided to use an >> easier and more universal method. >> >> I simply put an Ada constructing function into the library. The function >> is exported. The address returned by GetProcAddress or dlsym goes to >> Unchecked_Conversion to an access to subprogram, and here you are. >> >> The obvious advantage of this method over embedding is that the object >> can be tagged of any derived type, which no embedding can do. And you >> can add whatever further initialization or checks you might need. > > Can you elaborate a little? > I don't see what you put in your Ada constructing function. > I do see how you use it but not how and where you put the original content or file. In my case I do not deal with files, it is always objects. In the simplest case it could be a record type like: type Library_Data is record Do_This : not null access procedure; Get_That : not null access function return That'Class; end record; That the library provides. > Let's suppose you have some documentation file 'config/example.conf'. The documentation would be an object ready for rendering. Say the documentation renderer is GTK text view widget. Then that would require a text buffer: type Library_Data is record Do_This : not null access procedure; Get_That : not null access function return That'Class; Documentation : not null Gtk_Text_Buffer; end record; The caller will drop the text buffer Documentation into a Gtk_Text_View widget to show the documentation. I usually use programmatically generated content. E.g. HTML documentation would be a set of subprograms with parameters that put a portion of HTML into a stream/string. I then decorate their output as necessary, e.g. ... if that must be a table cell etc. The point that documentation is almost never a static text, but has all sorts of parameters the provider of does not know in advance. -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de