[racket] Use of map and eval to evaluate symbol in namespace

Thanks Henry

That's exactly what I was interested in. I'm at work at the moment
(Australia), but will have a bit more of a look later tonight

But I have an interest in the health sector, and would be interested in
contributing to a public domain project, especially if we can make
something neat / quick. I imagine others may be interested too.

The reason I asked to see the big picture is that often in software
development a bit more context helps. E.g. Maybe parts of your existing
database can be sucked in and re-purposed.

Dan


On Thu, Jul 31, 2014 at 10:49 AM, Henry Lenzi <henry.lenzi at gmail.com> wrote:

> Hi Daniel --
>
> Do you mean the Forth files?
> I don't belienve they would make much sense to you, but it would go
> something like this (as you can see, that is a FORTH definition):
>
> : NAME S"John Doe"
>    CU4
>    HCTZ25 30P 1CPM
>    OMZ20 30P 1CPM INSTOMZ
>    SIMVA20 30P 1CPN
>    L\D ;
>
>  Expands to (NOTE: Some things are germane to our public health
> system, such as renewing "continuous use" gratis medications, recipe
> valid for 4 months):
>
> John Doe
>
> Continuous use - 4 months
>
> Hydrochlorothiazide 25mg ---------------- 30 pills
>
>     Take 1 pill P.O. in the morning.
>
> Omeprazol 20mg ----------------------------- 30 pills
>
>    Take 1 pill P.O. in the morning, 1/2 hour
>    before breakfast.
>
> Simvastatin 20mg ---------------------------- 30 pills
>
>     Take 1 pill P.O. at night.
>
>                     City, xx/xx/xxxx
>
>
> So what´s happening here is that inside the FORTH definition,
> everything delimited by ":" and ";" is a FORTH word, as they say, that
> is to say, valid FORTH code.
> The very cheap trick here is simply writing a file with plain text
> (but called .fth, .f or other FORTH designations for filetypes)
> begining with a ":", ending with a ";", and everything in between,
> which are the FORTH words.
> The FORTH reader than opens this file. As soon as it hits the ":", it
> recognizes it's FORTH code. It's all amazingly stupid. However, what
> you get is: a DSL hassle-free (no parsing/lexing), a flat-file
> database for free (the name of the files), an interpreter (comes with
> the territory). And code is data, data is code, in a very, very
> concrete way.
>
>
> Cheers,
>
> Henry Lenzi
>
>
>
>
>
>
> On Wed, Jul 30, 2014 at 6:29 PM, Daniel Prager
> <daniel.a.prager at gmail.com> wrote:
> > Hi Henry
> >
> > Racket is very suitable for writing DSLs, or even whole Ls (more
> advanced!).
> > As you'd expect, the idioms for DSL construction in straight Racket are
> > different from those in Forth and will take a bit of familiarization and
> > adjustment.
> >
> > Would you be willing to share a more fully-fledged example of a shorthand
> > medical recipe (input) and reconstructed recipe (output) so that the
> Racket
> > Community can better understand what sounds like a very worthwhile
> project?
> >
> >
> > Dan
> >
> >
> > On Tue, Jul 29, 2014 at 6:21 AM, Henry Lenzi <henry.lenzi at gmail.com>
> wrote:
> >
> >> Of course, the ultimate purpose would be to re-evaluate the imported
> >> symbol and reconstruct a medical recipe. The purpose of these
> >> baby-steps exercises is porting a medical recipe program I've written
> >> originally in Forth that allowed me to service 5.000 patients creating
> >> a little database of shorthand recipes that then expand into real
> >> medical recipes. I got hundreds of patients on renewable recipes for,
> >> say, hypertension. Hand writing is no fun. Typing them in Word is no
> >> fun. The hospital has is its own software, but it's is a load of
> >> baloney, extremely buggy, if you ask me, so I'm rolling my own again,
> >> except I want to print directly on the model paper our service uses,
> >> so I want graphics like Racket Scheme has (very good capabilities, as
> >> far as my needs are concerned).
> >>
> >> With Forth, it's very easy to design DSLs, because there's no syntax
> >> and you get a lot of advanced features for free. For instance, there's
> >> no need to write a parser for my little language. However, since Forth
> >> implementations fall short of dealing with images, graphics (unless
> >> you take the royal road to pain and learn to program for the Win32 API
> >> and how it works for a particular Forth vendor), I'm looking at Racket
> >> Scheme.
>



-- 
*Daniel Prager*
Agile/Lean Coaching, Software Development and Leadership
Startup: www.youpatch.com
Twitter: @agilejitsu <https://twitter.com/agilejitsu>
Blog: agile-jitsu.blogspot.com
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