Wrote some tests, but they don't work because it doesn't output maps in a canonical form.

tests/mixed.yaml

@@ -0,0 +1,32 @@
+- the main thing is a sequence
+- here's a key: value
+  and another: value
+- let's inline: [1, 2, 3]
+  and an inline map: {key: value, 243: 101}
+- and multiple indents:
+  - here's
+  - a
+  - list
+  and another:
+  - list
+  - of
+  - things
+- maybe now:
+  let's: get
+  pretty:
+    deep: here
+    in:
+      the: nesting
+      just: to
+      confuse:
+        the: heck
+        out:
+          - of
+          - the: parser
+            if:
+              - we
+              - can
+          - do: that
+      what: do
+    you: think?
+    

tests/simple.yaml

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+---
+just a scalar
+---
+and another scalar
+---
+now an end document
+...
+---
+and now two
+...
+...
+---
+and that's it