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A programming environment that tries to [“stop drawing dead fish”](http://worrydream.com/#!/StopDrawingDeadFish).

<img alt='screenshot' src='../../html/rpn5.png' width='500px'>

To run:

```
$ cd linux
$ ./translate tile/*.mu
$ ./a.elf screen
```

To run tests:

```
$ ./a.elf test
```

To run a conventional REPL (for debugging):

```
$ ./a.elf type
```

## hacking

This is just a prototype. There are no tests.

To add a new primitive you'll need to hard-code it into the `evaluate`
function (linux/tile/rpn.mu).

There's also a second place you'll want to teach about predefined primitives:
`bound-function?` (linux/tile/environment.mu)
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<span id="L1" class="LineNr"> 1 </span><span class="Comment"># example program: read a character from one file and write it to another</span>
<span id="L2" class="LineNr"> 2 </span><span class="Comment"># BEWARE: this will modify your file system</span>
<span id="L3" class="LineNr"> 3 </span><span class="Comment"># before running it, put a character into /tmp/mu-x</span>
<span id="L4" class="LineNr"> 4 </span><span class="Comment"># after running it, check /tmp/mu-y</span>
<span id="L5" class="LineNr"> 5 </span>
<span id="L6" class="LineNr"> 6 </span><span class="muRecipe">def</span> <a href='real-files.mu.html#L6'>main</a> [
<span id="L7" class="LineNr"> 7 </span>  <span class="Constant">local-scope</span>
<span id="L8" class="LineNr"> 8 </span>  f:num/file <span class="Special">&lt;-</span> $open-file-for-reading <span class="Constant">[/tmp/mu-x]</span>
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<span id="L16" class="LineNr">16 </span>  $write-to-file f, c
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