Migrating to Ada : a mini success story
in [ADA]
|
Prev: FunnelWeb's tutorial comes with an Ada example
Next: Type of the target of an assignment shall not be abstract
From: Ludovic Brenta on 15 Feb 2010 09:52 Simon Clubley wrote on comp.lang.ada: > I would love to find an open source equivalent of the forms and ISAM > toolkits which could be called from Ada. For the forms toolkit, I'd start with TextTools[1]. It may not be complete enough but certainly provides a starting point. For ISAM, it depends on whether you need support for a specific binary file format or if you are content with equivalent functionality. If binary compatibility doesn't matter, I'd suggest writing an Ada binding to Berkeley DB[2] or using the existing GNADE[3] binding to SQLite[4]. The former is faster because it uses no SQL parser. The latter is more structured, thanks to SQL. In both cases, the file format will stand the test of time; that's the main benefit of free software. [1] http://www.pegasoft.ca/tt.html [2] http://www.oracle.com/technology/products/berkeley-db/db/index.html [3] http://gnade.sourceforge.net/ [4] http://sqlite.org/ (Berkeley DB, SQLite, GNADE and TextTools are all pre-packaged and ready to use in Debian). -- Ludovic Brenta.
From: Isaac Gouy on 15 Feb 2010 12:21 On Feb 13, 2:04 pm, Hibou57 (Yannick Duchêne) <yannick_duch...(a)yahoo.fr> wrote: > Hello once again, > > Here is a new quote about Ada, in another interesting context (no more LP > this time) :http://gmarceau.qc.ca/blog/2009/05/speed-size-and-dependability-of.html -snip- > The interesting context, is that this comment was one after an article > containing interesting graphic charts comparing some measurable language > characteristics. Unfortunately, Ada is not part of any of these charts, > but there is this comment, and the charts which may be nice for your own > knowledge anyway. That is not correct - look again and you'll see charts labelled "Ada 2005 GNAT" on the page you linked. Also see - http://shootout.alioth.debian.org/u64q/code-used-time-used-shapes.php http://shootout.alioth.debian.org/u32q/code-used-time-used-shapes.php etc
From: Hibou57 (Yannick Duchêne) on 15 Feb 2010 14:04 Le Mon, 15 Feb 2010 14:50:35 +0100, Simon Clubley <clubley(a)remove_me.eisner.decus.org-earth.ufp> a écrit: > The forms toolkit is actually quite advanced given it's character cell > requirements, containing the ability to define a form in terms of fields > containing different types of data (alpha, numeric, dates, etc) and > containing support for callback routines for custom field level > validation. > > I would love to find an open source equivalent of the forms and ISAM > toolkits which could be called from Ada. Does this toolkit comes with formally and cleanly documented specifications ? -- No-no, this isn't an oops ...or I hope (TM) - Don't blame me... I'm just not lucky
From: Simon Clubley on 16 Feb 2010 12:48 On 2010-02-15, Ludovic Brenta <ludovic(a)ludovic-brenta.org> wrote: > Simon Clubley wrote on comp.lang.ada: >> I would love to find an open source equivalent of the forms and ISAM >> toolkits which could be called from Ada. > > For the forms toolkit, I'd start with TextTools[1]. It may not be > complete enough but certainly provides a starting point. > Thanks for the pointer; I didn't know this toolkit existed. You are correct that it's not functional enough to replace the Synergex forms toolkit, but I am going to look at it anyway sometime over the next few weeks to see what it is capable of. > For ISAM, it depends on whether you need support for a specific binary > file format or if you are content with equivalent functionality. > > If binary compatibility doesn't matter, I'd suggest writing an Ada > binding to Berkeley DB[2] or using the existing GNADE[3] binding to > SQLite[4]. The former is faster because it uses no SQL parser. The > latter is more structured, thanks to SQL. In both cases, the file > format will stand the test of time; that's the main benefit of free > software. > Binary compatibility does not matter. The Berkeley DB library seems to have had a serious reworking since I last looked at it and dismissed it, so I will have a look at that as well. Thanks for the pointers, Simon. -- Simon Clubley, clubley(a)remove_me.eisner.decus.org-Earth.UFP Microsoft: Bringing you 1980's technology to a 21st century world
From: Simon Clubley on 16 Feb 2010 12:57
On 2010-02-15, Hibou57 <yannick_duchene(a)yahoo.fr> wrote: > Le Mon, 15 Feb 2010 14:50:35 +0100, Simon Clubley ><clubley(a)remove_me.eisner.decus.org-earth.ufp> a �crit: >> The forms toolkit is actually quite advanced given it's character cell >> requirements, containing the ability to define a form in terms of fields >> containing different types of data (alpha, numeric, dates, etc) and >> containing support for callback routines for custom field level >> validation. >> >> I would love to find an open source equivalent of the forms and ISAM >> toolkits which could be called from Ada. > Does this toolkit comes with formally and cleanly documented > specifications ? > No. The forms toolkit is heavily documented at API level in Synergex supplied documentation, but that documentation is not freely available online and is only supplied as part of a purchase so for various reasons making that documentation available online is absolutely _NOT_ a viable option. Sorry. Also, this documentation details how to use the library, but it's not a design document. The ISAM library implements a multiple and segmented key ISAM file structure. Once again, the documentation is about using it, not about how it's implemented internally. Simon. -- Simon Clubley, clubley(a)remove_me.eisner.decus.org-Earth.UFP Microsoft: Bringing you 1980's technology to a 21st century world |