On 04/13/2011 10:54 PM, Adam D. Ruppe wrote:
Andrei wrote:
Adam wrote an in-browser evaluator for D programs. These, when
presented on the homepage with "hello, world" in them are of
limited usefulness.
However, a personalized "try it now" button present for _each_
artifact in an std module would be of great usefulness.
Indeed. I actually wrote a little javascript thing for that
new home page that's reusable across other ddoc or similar
sites. Check it out:
http://arsdnet.net/d-web-site/std_algorithm2.html
Every time it sees a d_code block, the script adds a button.
Hit the button, and you can edit the code and send it off
to my completelyexpendable vm to compile and run it.
(It's also on my not-quite-done newsreader so example code in
newsgroup posts are detected and made editable. That's less perfect
since it's trying to pick code out of unstructured text, but it
works reasonably well.)
Of course, most examples fail to actually compile... but maybe
a few replacement rules for the text - automatically insert main()
if it's not there, import std.all or similar at the top,
replace "..." with some generic data.
I think we could make the examples work with just a few lines of
code.
Unittests are a different story though, since their code isn't
in the HTML today. If dmd did make it available though, this same
script should work on it.
What would be helpful, I guess, to have most examples work as is, is
systematically:
* put the code in a unitest block
* add "void main () {}"
* "import std.commonimports;"
where commonimports is a to-be-defined module publicly importing common tools
from std.* (there was a similar discussion about scripting in D):
public import std.stdio : write, writef, writeln, writefln;
public import std.string : format, join;
public import std.conv : to;
...
Denis
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