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Leah Hanson astrieanna

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astrieanna / squares.elm
Created Sep 21, 2014
modified version of (the red square follows the mouse)
View squares.elm
import Mouse
# Separating main and squares was key to making lift work
# I don't know how to convert Signal (Int,Int) to Signal (Float,Float)
# so I separated x and y into different arguments
main = lift2 squares (toFloat <~ Mouse.x)
(toFloat <~ Mouse.y)
squares : Float -> Float -> Element
squares x y =
astrieanna / cube.elm
Created Sep 21, 2014
modified version of left-right movement of mouse controls cube rotation
View cube.elm
import Math.Vector3 (..)
import Math.Matrix4 (..)
import Graphics.WebGL (..)
import Mouse
-- Create a cube in which each vertex has a position and color
type Vertex = { color:Vec3, position:Vec3 }
astrieanna / mlemming.elm
Last active Aug 29, 2015
Mario has visible platforms (multiple!) that he runs into, sorta. He also walks like a lemming.
View mlemming.elm
import Keyboard
import Window
type Lemming = {x:Int, y:Int, vx:Float, vy:Float, dir:String, onSurface:Bool}
mario1 = { x=20, y=900, vx=0, vy=0, dir="right", onSurface=False }
mario2 = { x=60, y=900, vx=0, vy=0, dir="right", onSurface=False }
allMarios = [mario1, mario2]
astrieanna / CodeTypeSample.ipynb
Created Mar 13, 2015
Using the output of code_typed
View CodeTypeSample.ipynb
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astrieanna / draft.asciidoc
Created Apr 6, 2015
NetCDF section for Learning Julia (with full script); not planning to include in book
View draft.asciidoc

Writing a Parser

Our goal for this section is to parse a NetCDF file. NetCDF is a binary format, which is most often used for climatology/geoscience data. Because it is a custom binary format, we’re going to write a custom parser for it by hand.


If you have a format based on JSON or XML to parse, then you should start with JSON.jl or julia-xml-library, rather than writing it by hand.

astrieanna /
Created Mar 12, 2013
The file that makes rustc have an "unexpected failure" and the resulting log.
enum FingerTree<A> { Empty
, Single(A)
, Deep (Digit<A>, @FingerTree<Node<A>>, Digit<A>)
enum Node<A> { Node2(A,A), Node3(A,A,A) }
enum Digit<A> { One(A)
, Two(A,A)
, Three(A,A,A)
, Four(A,A,A,A)
astrieanna / freezes.jl
Created Mar 14, 2013
Socket code in Julia.
View freezes.jl
echo2_helper(socket,stat) =
c = accept(socket)
line = read_line(c)
while line != "0\n"
astrieanna /
Created Mar 20, 2013
A file that makes rustc have an internal error (task failed at 'Unsupported constant expr') and the backtrace log from the compiler. The file compile.log was created using `rustc --test &> compile.log`.
struct Level1<A> {
data : @mut [@A * 5]
, mut current : int
struct Level2<A> {
data : @mut [@Level1<A> * 32]
, mut current : int
astrieanna / make.log
Last active Dec 15, 2015
Output of make on failed build of Servo.
View make.log
make[1]: Entering directory `/home/leah/code/servo/build/src/pixman'
make all-recursive
make[2]: Entering directory `/home/leah/code/servo/build/src/pixman'
Making all in pixman
make[3]: Entering directory `/home/leah/code/servo/build/src/pixman/pixman'
make[3]: Nothing to be done for `all'.
make[3]: Leaving directory `/home/leah/code/servo/build/src/pixman/pixman'
Making all in demos
make[3]: Entering directory `/home/leah/code/servo/build/src/pixman/demos'
make[3]: Nothing to be done for `all'.
View configure.log
configure: looking for configure programs
configure: found cmp
configure: found mkdir
configure: found printf
configure: found cut
configure: found grep
configure: found xargs
configure: found cp
configure: found find
configure: found uname