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  2. +81 −0 README.md
  3. +261 −0 epl-v10.html
  4. +4 −0 project.clj
  5. +88 −0 src/clj_lazy_json/cdx.clj
  6. +241 −0 src/clj_lazy_json/core.clj
  7. +67 −0 test/clj_lazy_json/test/core.clj
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+/pom.xml
+*jar
+/lib
+/classes
+/native
+/.lein-failures
+/checkouts
+/.lein-deps-sum
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+# clj-lazy-json
+
+A [Jackson](http://jackson.codehaus.org/)-based lazy JSON parsing
+library for Clojure.
+
+Some code from the (EPL-licensed) `clojure.data.xml` library is being
+reused here; see below for details.
+
+Please note that at this early stage the API and even the scope of
+this library is subject to change without notice.
+
+## Usage
+
+JSON documents can be parsed into a lazy tree representation by the
+`lazy-parse` function, which expects as its argument anything
+acceptable to `clojure.java.io/reader` (e.g. a `File`, `URI` or a
+ready-made `Reader`). `parse-string` is a convenience wrapper for
+dealing with JSON documents contained in strings.
+
+The trees are meant to be processed by calling callback functions
+registered for "paths"; for example
+
+ (process-lazy-json-tree (parse-string "{\"foo\": 1, \"bar\": 2}")
+ {}
+ [:$ "foo"] #(apply prn "Foo!" %&)
+ [:$ "bar"] #(apply prn "Bar!" %&))
+
+prints
+
+ "Foo!" [:$ "foo"] 1
+ "Bar!" [:$ "bar"] 2
+
+and returns `nil`.
+
+The `process-lazy-json-tree` function used in the example above
+constructs a one-off JSON processor and uses it to process the given
+lazy JSON tree. JSON processors which will be used repeatedly may be
+defined using the `define-json-processor` macro.
+
+Wildcards matching "any key/index" (`:*`) or "any subpath" (`:**`) are
+supported in paths. The docstring of the `define-json-processor` macro
+contains a description of the path language and the contract which
+must be met by the callback functions.
+
+The lazy JSON trees may be converted to the usual "natural" Clojure
+representation using the `to-clj` function.
+
+Note that no JSON emitting functionality is currently supported; this
+is available in both `clojure.data.json` and `clj-json`.
+
+## Use of `clojure.data.xml` code
+
+The lazy trees used here are constructed using two functions from
+`clojure.data.xml`, `fill-queue` and `seq-tree`, copied here because
+they are marked private in their original namespace of residence.
+`clojure.data.xml` code carries the following notice:
+
+ ; Copyright (c) Rich Hickey. All rights reserved.
+ ; The use and distribution terms for this software are covered by the
+ ; Eclipse Public License 1.0 (http://opensource.org/licenses/eclipse-1.0.php)
+ ; which can be found in the file epl-v10.html at the root of this distribution.
+ ; By using this software in any fashion, you are agreeing to be bound by
+ ; the terms of this license.
+ ; You must not remove this notice, or any other, from this software.
+
+This notice is also reproduced in the `src/clj_lazy_json/cdx.clj` file
+containing this code. See also the file `epl-v10.html` at the root of
+the present distribution.
+
+## Fablo
+
+This work was sponsored by Fablo (http://fablo.eu/). Fablo provides a
+set of tools for building modern e-commerce storefronts. Tools include
+a search engine, product and search result navigation, accelerators,
+personalized recommendations, and real-time statistics and analytics.
+
+## Licence
+
+Copyright (C) 2011 Michał Marczyk
+
+Distributed under the Eclipse Public License, the same as Clojure.
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+<?xml version="1.0" encoding="ISO-8859-1" ?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+
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+ tab-interval: 0.5in;
+ }
+ p {
+ margin-left: auto;
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+ }
+ p.list {
+ margin-left: 0.5in;
+ margin-top: 0.05em;
+ margin-bottom: 0.05em;
+ }
+ </style>
+
+</head>
+
+<body lang="EN-US">
+
+<p align=center><b>Eclipse Public License - v 1.0</b></p>
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+</body>
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+</html>
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+(defproject clj-lazy-json "0.0.1"
+ :description "Jackson-based lazy JSON parsing library for Clojure."
+ :dependencies [[org.clojure/clojure "[1.2.0,1.3.0]"]
+ [org.codehaus.jackson/jackson-core-asl "1.8.6"]])
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