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Improve the "Tagged Elements" section of EDN doc
- Change Clojure code to eliminate errors and to match commented output > Change edn/read-string to clojure.edn/read-string (no _require_ in text) > Change map->menu-item to map->MenuItem to match defrecord and output - Modify the text to make it easier to understand the given example
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@ -84,21 +84,25 @@ github/fork ; you can't eat with this
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#MyYelpClone/MenuItem {:name "eggs-benedict" :rating 10}
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#MyYelpClone/MenuItem {:name "eggs-benedict" :rating 10}
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; Let me explain this with a clojure example. Suppose I want to transform that
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; Let me explain this with a Clojure example. Suppose I want to transform that
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; piece of EDN into a MenuItem record.
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; piece of EDN into a MenuItem record.
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(defrecord MenuItem [name rating])
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(defrecord MenuItem [name rating])
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; To transform EDN to clojure values, I will need to use the built in EDN
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; defrecord defined, among other things, map->MenuItem which will take a map
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; reader, edn/read-string
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; of field names (as keywords) to values and generate a user.MenuItem record
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(edn/read-string "{:eggs 2 :butter 1 :flour 5}")
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; To transform EDN to Clojure values, I will need to use the built-in EDN
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; reader, clojure.edn/read-string
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(clojure.edn/read-string "{:eggs 2 :butter 1 :flour 5}")
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; -> {:eggs 2 :butter 1 :flour 5}
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; -> {:eggs 2 :butter 1 :flour 5}
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; To transform tagged elements, define the reader function and pass a map
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; To transform tagged elements, pass to clojure.edn/read-string an option map
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; that maps tags to reader functions to edn/read-string like so
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; with a :readers map that maps tag symbols to data-reader functions, like so
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(edn/read-string {:readers {'MyYelpClone/MenuItem map->menu-item}}
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(clojure.edn/read-string
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{:readers {'MyYelpClone/MenuItem map->MenuItem}}
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"#MyYelpClone/MenuItem {:name \"eggs-benedict\" :rating 10}")
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"#MyYelpClone/MenuItem {:name \"eggs-benedict\" :rating 10}")
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; -> #user.MenuItem{:name "eggs-benedict", :rating 10}
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; -> #user.MenuItem{:name "eggs-benedict", :rating 10}
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