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@@ -86,7 +86,7 @@ The driver itself is a simple shim on top of the handler dispatch facility. As
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(sort-atoms solution))))
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#+END_SRC
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-** WORKING Expression Handlers [0/7]
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+** WORKING Expression Handlers [1/7]
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:PROPERTIES:
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:ID: 99e68a1a-b3a4-40c5-9b2e-92d5e976d5bb
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:END:
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@@ -109,11 +109,14 @@ This is organized as follows: handler storage, a recipe for handler definition,
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<<doubled-not-handler>>
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#+END_SRC
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-*** TODO Defining Handlers
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+*** DONE Defining Handlers
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+CLOSED: [2018-03-23 Fri 21:47]
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:PROPERTIES:
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:ID: 2a90b9c3-585e-4347-89d7-78035e88e681
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:END:
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+This macro (~define-expression-handler~) takes two arguments, an expression type and a handler body. It uses the type to create a name for the handler itself, and the defines a function with that name, taking three arguments: the current expression, the list of unchecked expressions and the current path. It then places the handler body in the function, pushes a single cell of the expression type and the handler name onto the handler storage list, and returns the expression type.
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+
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#+Caption: Defining Handlers
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#+Name: defining-handlers
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#+BEGIN_SRC lisp
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