diff options
| author | alon@honor <none@none> | 2010-09-11 15:29:00 -0700 |
|---|---|---|
| committer | alon@honor <none@none> | 2010-09-11 15:29:00 -0700 |
| commit | b91f37774b3215e8d3c67c14ddd1400923dca178 (patch) | |
| tree | b1bdda91dd868e7c5c2b023da9991ec82bf21393 /demos/cubescript.html | |
| parent | ac805ebf0af3ad7873dbed0f0f28e5f6d481c464 (diff) | |
cubescript web demo
Diffstat (limited to 'demos/cubescript.html')
| -rw-r--r-- | demos/cubescript.html | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/demos/cubescript.html b/demos/cubescript.html new file mode 100644 index 00000000..05e4f946 --- /dev/null +++ b/demos/cubescript.html @@ -0,0 +1,65 @@ +<html> +<head> + <title> + Emscripten: CubeScript + </title> + <script src="cubescript.js"></script> + <script> + // print function which the cubescript engine will call + function print(text) { + document.getElementById('output').innerHTML += text + '<br>'; + printed = true; + } + + function execute(text) { + printed = false; + executeCS(text); + if (!printed) { + print('<small><i>(no output)</i></small>'); + } + } + </script> +</head> +<body onload="document.getElementById('the_input').focus()"> + <p> + This is an <a href="http://emscripten.org">Emscriptened</a> <a href="http://sauerbraten.org/docs/config.html#cubescript">CubeScript</a> engine. + The CubeScript engine from <a href="http://sauerbraten.org">Sauerbraten</a>, which is about 2,500 lines of C++, was compiled by + <a href="http://llvm.org/cmds/llvmgcc.html">llvm-gcc</a> into <a href="http://llvm.org/">LLVM</a> bitcode, + which was translated by Emscripten into JavaScript, which + you can run in your browser here. In other words, it's a script engine (for one language, and written in C++) running in another script engine + (the JavaScript engine in your browser, which is incidentally also written in C++, most likely). + </p> + </p> + Why? <i>[insert Internet meme joke here]</i> Seriously, though, this is a test of the capabilities of + <a href="http://emscripten.org">Emscripten</a>, since the CubeScript engine uses fairly complicated C++ (even stuff like + manually copying vtable pointers), and since compiling an actual, complete script engine seems like a useful milestone. + Also, it's a potential first step + towards bringing <a href="http://www.syntensity.com">Syntensity</a> (which is based on Sauerbraten) to the web. + </p> + <hr> + <p> + <b>Instructions</b>: For example, try entering the following commands in the input field below: + <ul> + <li><div style="font-family: Courier New,Courier,monospace;">echo Hello world</div></li> + <li><div style="font-family: Courier New,Courier,monospace;">x = 3 </div> <small><i>(note the spaces around the '=')</i></small></li> + <li><div style="font-family: Courier New,Courier,monospace;">echo $x</div></li> + <li><div style="font-family: Courier New,Courier,monospace;">echo Another number: (+ $x (* 5 10)) </div><small><i>(note the prefix notation, that is the same as <b>$x + (5*10)</b>)</i></small></li> + <li><div style="font-family: Courier New,Courier,monospace;">if (> $x 2) [ echo "x is bigger than 2" ] [ echo "x is not bigger than 2" ]</div></li> + </ul> + Check out the CubeScript <a href="http://sauerbraten.org/docs/config.html#cubescript">docs</a> or + <a href="http://cube.wikispaces.com/Cubescript+Tutorial">tutorial</a> + for more (but, they mainly talk about using CubeScript in Sauerbraten itself - much like most + JavaScript tutorials talk about using JavaScript in a web browser). + </p> + <hr> + <!-- Call the cubescript engine's execute() function --> + <form onsubmit="execute(the_input.value); the_input.value = ''; return false"> + <b>Enter some CubeScript</b>: + <input type="text" id="the_input"> + <input type="submit" value="execute"> + </form> + <hr> + <div id="output" style="font-family: Courier New,Courier,monospace;"></div> +</body> +</html> + |