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parser.cljc
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parser.cljc
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(ns rewrite-clj.parser
"Parse Clojure/ClojureScript/EDN source code to nodes.
Parsing includes all source code elements including whitespace.
After parsing, the typical next step is [[rewrite-clj.zip/edn]] to create zipper.
Alternatively consider parsing and zipping in one step from [[rewrite-clj.zip/of-string]] or [[rewrite-clj.zip/of-file]]."
(:require [rewrite-clj.node.forms :as nforms]
[rewrite-clj.parser.core :as p]
[rewrite-clj.reader :as reader]))
#?(:clj (set! *warn-on-reflection* true))
;; ## Parser Core
(defn ^:no-doc parse
"Parse next form from the given reader."
[#?(:cljs ^not-native reader :default reader)]
(p/parse-next reader))
(defn ^:no-doc parse-all
"Parse all forms from the given reader."
[#?(:cljs ^not-native reader :default reader)]
(let [nodes (->> (repeatedly #(parse reader))
(take-while identity)
(doall))]
(with-meta
(nforms/forms-node nodes)
(meta (first nodes)))))
;; ## Specialized Parsers
(defn parse-string
"Return a node for first source code element in string `s`."
[s]
(parse (reader/string-reader s)))
(defn parse-string-all
"Return forms node for all source code elements in string `s`."
[s]
(parse-all (reader/string-reader s)))
#?(:clj
(defn parse-file
"Return node for first source code element in file `f`."
[f]
(with-open [r (reader/file-reader f)]
(parse r))))
#?(:clj
(defn parse-file-all
"Return forms node for all source code elements in file `f`."
[f]
(with-open [r (reader/file-reader f)]
(parse-all r))))