Re: WG: Problem with repeatedly compiling files with partly the same content and EmbeddedEclipse

Hi Cornelius,

On Fri, Mar 14, 2003 at 04:07:56PM +0100, Cornelius Hagen wrote:
> Hi Warwick,
> 
> Thank you! One more question.
> Your points are very clear: 
> 1:  create_module(d),
> 2:  compile(file)@d,	% compiles file as if done from module d
> 3:  export(foo/2)@d,	% export foo/2 from d so other modules can
> access it
> 4:  d:foo(X, Y),		% call module d's foo/2
> 5:  erase_module(d).
> To implement this in java, I'd try 1,3,4,5 the rpc(String)-method.
> But how about 2:? Usually one compiles a file in java with
> compile(File)-method that does not provide the possibility to use @/. I
> tried a work-around via rpc( "compile(arrow0.txt) @ d" ).
> But get an Exception (Throw) with the comment:
> string stream 9: syntax error: postfix/infix operator expected 
> | compile(arrow0.txt) @ d 
> |               ^ here string contains unexpected characters in
> term_string(_942, "compile(arrow0.txt) @ d")

This error is because, in ECLiPSe, you can't just type

	compile(arrow0.txt)

since `.' is a special character.  You need to make the file name a string
"arrow0.txt" or atom 'arrow0.txt'.

>From what I understand of Josh's reply, you want to construct the term

	@(compile("arrow0.txt"), d)

and send that.  I guess constructing the term would look something like this
(big disclaimer: I don't really know Java, and I've never used the
Java-ECLiPSe interface or this RPC stuff...):

	new CompoundTermImpl("@",
		new CompoundTermImpl("compile", "arrow0.txt"),
		new Atom("d"))

Cheers,
Warwick