[Sorry...
I'm well practiced at forgetting to attach the meaningful bits...
Take two!]
Hello all,
I'm using racket and scribble-lp to automatically generate C-code.
I get nice LP documentation of my racket-level scripts, but (by the nature
of what I'm doing) I have code like:
-------------------------------------------------------------------
#lang scribble/lp
We'll want to return 0 from main.
@chunk[<main-rv>]{0}
@chunk[<c-main-program> @list{
int main(int argc, char* argv[]) {
return @<main-rv>;
}
}]
This is the main program. As you can see it doesn't do a great deal.
Now, write the main program...
@chunk[<*>
(require racket/list
srfi/13)
(display
(apply
string-append
(flatten ; cos my data is usually bumpier than this
<c-main-program>)))]
-------------------------------------------------------------------
When I run this with racket -- I get my C program out.
When I lp-include it into a scribble file, my <*> chunk is nicely
formatted, but my <c-main-program> chunk is rendered (from scribble --text)
as:
<c-main-program> ::=
(list
"int main(int argc, char* argv[]) {""\n"" "
"return " <main-rv>";""\n"
"}""\n")
Which, although strictly true, does not really represent the C source in
its most natural form. I have used this scheme (especially @-expressions)
as a text-preprocessing style to good effect in C, HTML and JavaScript.
But each time, I have come unstuck at this point when I need self-
documenting LP code. [I know there are s-expr representations for HTML and
JavaScript out there, but sometimes one just needs a text preprocessor]
Is there any way ask scribble to re-present the list of strings as an
@-form?
If not I could do with help in implementing such.
On closer inspection, a general form would not just look for
(list "string" ...) -> @list{string...} , since list could be any datum,
and "string" could be any datum (e.g. <main-rv>); so I was wondering if
the entire expression could be marked as "from-...@-form".
Could someone with a better overview of what options are available for me
to label my data in such a way point me in the right direction?
Regards,
Tim
--
Tim Brown <tim.br...@cityc.co.uk> | City Computing Limited |
T: +44 20 8770 2110 | City House, Sutton Park Road |
F: +44 20 8770 2130 | Sutton, Surrey, SM1 2AE, GB |
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