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vendor/github.com/yalp/jsonpath/README.md

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+[![Build Status](https://travis-ci.org/yalp/jsonpath.svg?branch=master)](https://travis-ci.org/yalp/jsonpath)
+
+This was mostly an experiment to learn go and test using closures to interpret a JSON path.
+You should use https://github.com/PaesslerAG/jsonpath instead.
+
+# jsonpath
+
+a (partial) implementation in [Go](http://golang.org) based on [Stefan Goener JSON Path](http://goessner.net/articles/JsonPath/)
+
+## Limitations
+
+* No support for subexpressions : `$books[(@.length-1)]`
+* No support for filters : `$books[?(@.price > 10)]`
+* Strings in brackets must use double quotes : `$["bookstore"]`
+* Cannot operate on struct fields
+
+The third limitation comes from using the `text/scanner` package from the standard library.
+The last one could be overcome by using reflection.
+
+## JsonPath quick intro
+
+All expressions start `$`.
+
+Examples (supported by the current implementation) :
+ * `$` the current object (or array)
+ * `$.books` access to the key of an object (or `$["books"]`with bracket syntax)
+ * `$.books[1]` access to the index of an array
+ * `$.books[1].authors[1].name` chaining of keys and index
+ * `$["books"][1]["authors"][1]["name"]` the same with braket syntax
+ * `$.books[0,1,3]` union on an array
+ * `$["books", "songs", "movies"]` union on an object
+ * `$books[1:3]` second and third items of an array
+ * `$books[:-2:2]` every two items except the last two of an array
+ * `$books[::-1]` all items in reversed order
+ * `$..authors` all authors (recursive search)
+
+Checkout the [tests](jsonpath_test.go) for more examples.
+
+## Install
+
+    go get github.com/yalp/jsonpath
+
+## Usage
+
+A jsonpath applies to any JSON decoded data using `interface{}` when decoded with [encoding/json](http://golang.org/pkg/encoding/json/) :
+
+    var bookstore interface{}
+    err := json.Unmarshal(data, &bookstore)
+    authors, err := jsonpath.Read(bookstore, "$..authors")
+
+A jsonpath expression can be prepared to be reused multiple times :
+
+    allAuthors, err = jsonpath.Prepare("$..authors")
+    ...
+    var bookstore interface{}
+    err := json.Unmarshal(data, &bookstore)
+    authors, err := allAuthors(bookstore)
+
+The type of the values returned by the `Read` method or `Prepare` functions depends on the jsonpath expression.