Remove jsonpath-rs build in travis.yml

Bumps [handlebars](https://github.com/wycats/handlebars.js) from 4.1.2 to 4.5.3.
- [Release notes](https://github.com/wycats/handlebars.js/releases)
- [Changelog](https://github.com/wycats/handlebars.js/blob/master/release-notes.md)
- [Commits](https://github.com/wycats/handlebars.js/compare/v4.1.2...v4.5.3)

Signed-off-by: dependabot[bot] <support@github.com>

.idea/runConfigurations/all.xml

@@ -4,9 +4,12 @@
     <option name="command" value="test --package jsonpath_lib" />
     <option name="allFeatures" value="false" />
     <option name="nocapture" value="true" />
-    <option name="backtrace" value="SHORT" />
+    <option name="emulateTerminal" value="false" />
+    <option name="backtrace" value="NO" />
     <option name="workingDirectory" value="file://$PROJECT_DIR$" />
     <envs />
-    <method v="2" />
+    <method v="2">
+      <option name="CARGO.BUILD_TASK_PROVIDER" enabled="true" />
+    </method>
   </configuration>
 </component>

.idea/runConfigurations/mutable.xml

@@ -1,7 +1,7 @@
 <component name="ProjectRunConfigurationManager">
-  <configuration default="false" name="selector" type="CargoCommandRunConfiguration" factoryName="Cargo Command">
+  <configuration default="false" name="mutable" type="CargoCommandRunConfiguration" factoryName="Cargo Command">
     <option name="channel" value="DEFAULT" />
-    <option name="command" value="test --package jsonpath_lib --test selector &quot;&quot;" />
+    <option name="command" value="test --package jsonpath_lib --test mutable &quot;&quot;" />
     <option name="allFeatures" value="false" />
     <option name="nocapture" value="false" />
     <option name="backtrace" value="SHORT" />

.idea/runConfigurations/parser.xml

@@ -1,7 +1,7 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="parser" type="CargoCommandRunConfiguration" factoryName="Cargo Command">
     <option name="channel" value="DEFAULT" />
-    <option name="command" value="test --package jsonpath_lib --test parser &quot;&quot;" />
+    <option name="command" value="test --package jsonpath_lib --lib parser::parser_tests" />
     <option name="allFeatures" value="false" />
     <option name="nocapture" value="false" />
     <option name="backtrace" value="SHORT" />

.idea/runConfigurations/readme.xml

@@ -1,7 +1,7 @@
 <component name="ProjectRunConfigurationManager">
-  <configuration default="false" name="serde" type="CargoCommandRunConfiguration" factoryName="Cargo Command">
+  <configuration default="false" name="readme" type="CargoCommandRunConfiguration" factoryName="Cargo Command">
     <option name="channel" value="DEFAULT" />
-    <option name="command" value="test --package jsonpath_lib --test serde &quot;&quot;" />
+    <option name="command" value="test --package jsonpath_lib --test readme &quot;&quot;" />
     <option name="allFeatures" value="false" />
     <option name="nocapture" value="false" />
     <option name="backtrace" value="SHORT" />

.idea/runConfigurations/tokenizer.xml

@@ -1,7 +1,7 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="tokenizer" type="CargoCommandRunConfiguration" factoryName="Cargo Command">
     <option name="channel" value="DEFAULT" />
-    <option name="command" value="test --package jsonpath_lib --test tokenizer &quot;&quot;" />
+    <option name="command" value="test --package jsonpath_lib --lib parser::tokenizer_tests" />
     <option name="allFeatures" value="false" />
     <option name="nocapture" value="false" />
     <option name="backtrace" value="SHORT" />

.travis.yml

@@ -1,5 +1,9 @@
 language: rust
-sudo: false
+sudo: required
+addons:
+  apt:
+    packages:
+      - libssl-dev
 
 cache: cargo
 
@@ -13,27 +17,28 @@ matrix:
     - rust: stable
       os: linux
       env: RUST_BACKTRACE=1
-      addons:
-        chrome: stable
+      before_cache: |
+        if [[ "$TRAVIS_RUST_VERSION" == stable ]]; then
+          cargo install cargo-tarpaulin -f
+        fi
       before_script:
-        - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
-        - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
-        - cargo install-update -a
-        - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh -s -- -f
+        - rustup component add clippy
       script:
+        - cargo clean
+        - cargo clippy -- -D warnings
         - cargo build --verbose --all
+        - cargo clippy --all-targets --all-features -- -D warnings -A clippy::cognitive_complexity
         - cargo test --verbose --all
+        - cd wasm && cargo clippy -- -D warnings -A clippy::suspicious_else_formatting
+        - cd ../../
+      after_success: |
+        cargo tarpaulin --exclude-files nodejs wasm parser/mod.rs --out Xml
+        bash <(curl -s https://codecov.io/bash)
     - rust: stable
       os: osx
       env: RUST_BACKTRACE=1
-      addons:
-        chrome: stable
-      before_script:
-        - (test -x $HOME/.cargo/bin/cargo-install-update || cargo install cargo-update)
-        - (test -x $HOME/.cargo/bin/cargo-generate || cargo install --vers "^0.2" cargo-generate)
-        - cargo install-update -a
-        - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh -s -- -f
       script:
+        - cargo clean
         - cargo build --verbose --all
         - cargo test --verbose --all
     - language: node_js
@@ -48,13 +53,12 @@ matrix:
         - sh /tmp/rustup.sh -y
         - export PATH="$HOME/.cargo/bin:$PATH"
         - source "$HOME/.cargo/env"
-        - npm install -g neon-cli
-        - cd nodejs
         - node -v
         - npm -v
-        - npm install
+      before_script:
+        - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh -s -- -f
       script:
-        - npm test
+        - bash ./build-wasm.sh
     - language: node_js
       os: osx
       node_js:
@@ -67,10 +71,9 @@ matrix:
         - sh /tmp/rustup.sh -y
         - export PATH="$HOME/.cargo/bin:$PATH"
         - source "$HOME/.cargo/env"
-        - npm install -g neon-cli
-        - cd nodejs
         - node -v
         - npm -v
-        - npm install
+      before_script:
+        - curl https://rustwasm.github.io/wasm-pack/installer/init.sh -sSf | sh -s -- -f
       script:
-        - npm test
+        - bash ./build-wasm.sh

Cargo.toml

@@ -1,15 +1,15 @@
 [package]
 name = "jsonpath_lib"
-version = "0.2.0"
+version = "0.2.4"
 authors = ["Changseok Han <freestrings@gmail.com>"]
 
-description = "It is JsonPath engine written in Rust. it provide a similar API interface in Webassembly and Javascript also. - Webassembly Demo: https://freestrings.github.io/jsonpath"
+description = "It is JsonPath engine written in Rust. it provide a similar API interface in Webassembly and Javascript too. - Webassembly Demo: https://freestrings.github.io/jsonpath"
 readme = "README.md"
 
-keywords = ["jsonpath", "json", "webassembly", "nodejs", "javascript"]
+keywords = ["jsonpath", "json", "webassembly", "nodejs", "query"]
 
 repository = "https://github.com/freestrings/jsonpath"
-documentation = "https://docs.rs/jsonpath_lib/0.1.0/jsonpath_lib"
+documentation = "https://docs.rs/jsonpath_lib/0.2.4/jsonpath_lib"
 license = "MIT"
 
 categories = ["parsing"]
@@ -19,19 +19,16 @@ travis-ci = { repository = "freestrings/jsonpath", branch = "master" }
 
 [dependencies]
 log = "0.4"
-env_logger = "0.6.0"
+env_logger = "0.7"
 serde = { version = "1.0", features = ["derive"] }
 serde_json = { version = "1.0", features = ["preserve_order"] }
-indexmap = "1.0.2"
-array_tool = "~1.0.3"
-
-[dev-dependencies]
-bencher = "0.1.5"
+array_tool = "1.0.3"
 
 [lib]
 name = "jsonpath_lib"
 path = "src/lib.rs"
+crate-type = ["cdylib", "rlib"]
 
 [profile.release]
 #debug = true
-#lto = false
+#lto = false

README.md

@@ -2,16 +2,15 @@
 
 [![Build Status](https://travis-ci.org/freestrings/jsonpath.svg?branch=master)](https://travis-ci.org/freestrings/jsonpath)
 ![crates.io](https://img.shields.io/crates/v/jsonpath_lib.svg)
-![npm](https://img.shields.io/npm/v/jsonpath-rs.svg?label=npm%20%60jsonpath-rs%60)
 ![npm](https://img.shields.io/npm/v/jsonpath-wasm.svg?label=npm%20%60jsonpath-wasm%60)
+![Codecov](https://img.shields.io/codecov/c/github/freestrings/jsonpath.svg?token=92c41b4e7cf04a9cbebc08f68c5da615)
 
 `Rust` 버전 [JsonPath](https://goessner.net/articles/JsonPath/) 구현이다. `Webassembly`와 `Javascript`에서도 유사한 API 인터페이스를 제공 한다.
 
-It is JsonPath [JsonPath](https://goessner.net/articles/JsonPath/) engine written in `Rust`. it provide a similar API interface in `Webassembly` and` Javascript` also.
+It is JsonPath [JsonPath](https://goessner.net/articles/JsonPath/) engine written in `Rust`. it provide a similar API interface in `Webassembly` and` Javascript` too.
 
 - [Webassembly Demo](https://freestrings.github.io/jsonpath/)
 - [NPM jsonpath-wasm - webassembly](https://www.npmjs.com/package/jsonpath-wasm)
-- [NPM jsonpath-rs - native addon](https://www.npmjs.com/package/jsonpath-rs)
 
 ## Rust API
 
@@ -91,7 +90,7 @@ let result = selector_mut
             0
         };
 
-        json!(age)
+        Some(json!(age))
     }).unwrap()
     .take().unwrap();
 
@@ -352,7 +351,7 @@ let ret = jsonpath::replace_with(json_obj, "$..[?(@.age == 20)].age", &mut |v| {
         0
     };
 
-    json!(age)
+    Some(json!(age))
 }).unwrap();
 
 assert_eq!(ret, json!({
@@ -387,18 +386,6 @@ import * as jsonpath from "jsonpath-wasm";
 const jsonpath = require('jsonpath-wasm');
 ```
 
-##### jsonpath-rs (NodeJS only)
-
-Goto [`jsonpath-rs` npmjs.org](https://www.npmjs.com/package/jsonpath-rs)
-
-```javascript
-const jsonpath = require('jsonpath-rs');
-```
-
-</details>
-
-<details><summary><b>Javascript - jsonpath.Selector class</b></summary>
-
 ##### jsonpath-wasm
 `wasm-bindgen` 리턴 타입 제약 때문에 빌더 패턴은 지원하지 않는다.
 
@@ -434,42 +421,6 @@ console.log(JSON.stringify(ret) == JSON.stringify(retObj));
 // => true
 ```
 
-##### jsonpath-rs
-
-```javascript
-let jsonObj = {
-    "school": {
-        "friends": [
-            {"name": "친구1", "age": 20},
-            {"name": "친구2", "age": 20}
-        ]
-    },
-    "friends": [
-        {"name": "친구3", "age": 30},
-        {"name": "친구4"}
-    ]
-};
-
-let ret = [
-    {"name": "친구3", "age": 30},
-    {"name": "친구1", "age": 20}
-];
-
-let selector = new jsonpath.Selector()
-    .path('$..friends[0]')
-    .value(jsonObj);
-
-let retObj = selector.select();
-
-console.log(JSON.stringify(ret) == JSON.stringify(retObj));
-
-// => true
-```
-
-</details>
-
-<details><summary><b>Javascript - jsonpath.SelectorMut class</b></summary>
-
 빌더 패턴 제약은 `Selector class`와 동일하다.
 
 ```javascript

bench.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -e
+
+#
+# rustup default nightly
+#
+
+cargo bench --manifest-path ./benchmark/Cargo.toml

benches/bench_native.sh

@@ -1,44 +0,0 @@
-#!/bin/bash
-
-set -e
-DIR="$(pwd)"
-
-cd "${DIR}"/bench_bin && cargo build --release
-
-ITER=100000
-
-printf "\n\n$..book[?(@.price<30 && @.category=="fiction")] (loop ${ITER})"
-printf "\n\n"
-
-__default () {
-    echo "Rust - select: " && time ./bench.sh select ${ITER}
-    printf "\n"
-    sleep 1
-    cd "${DIR}"/javascript && echo "NodeJs - jsonpath - query: " && time ./bench.sh jsonpath ${ITER}
-    printf "\n"
-    sleep 1
-    cd "${DIR}"/javascript && echo "NodeJs - jsonpath-rs - select:" && time ./bench.sh nativeSelect ${ITER}
-}
-
-__extra () {
-    echo "Rust - selector: " && time ./bench.sh selector ${ITER}
-    printf "\n"
-    sleep 1
-    echo "Rust - compile: " && time ./bench.sh compile ${ITER}
-    printf "\n"
-    sleep 1
-    cd "${DIR}"/javascript && echo "NodeJs - jsonpath - query: " && time ./bench.sh jsonpath ${ITER}
-    printf "\n"
-    sleep 1
-    cd "${DIR}"/javascript && echo "NodeJs - jsonpath-rs - selector: " && time ./bench.sh nativeSelector ${ITER}
-    printf "\n"
-    sleep 1
-    cd "${DIR}"/javascript && echo "NodeJs - jsonpath-rs - compile: " && time ./bench.sh nativeCompile ${ITER}
-    printf "\n"
-}
-
-if [ "$1" = "extra" ]; then
-    __extra
-else
-    __default
-fi

benches/package-lock.json

@@ -1,3 +0,0 @@
-{
-  "lockfileVersion": 1
-}

benchmark/.gitignore

@@ -0,0 +1,4 @@
+.idea/*
+.vscode
+/target/
+Cargo.lock

benchmark/Cargo.toml

@@ -0,0 +1,17 @@
+[package]
+name = "jsonpath_lib_benches"
+version = "0.1.0"
+authors = ["Changseok Han <freestrings@gmail.com>"]
+description = "jsonpath_lib benchmark"
+license = "MIT"
+[dependencies]
+serde = { version = "1.0", features = ["derive"] }
+serde_json = { version = "1.0", features = ["preserve_order"] }
+jsonpath_lib = { path = "../" }
+
+[dev-dependencies]
+bencher = "0.1.5"
+
+[[bin]]
+name = "jsonpath_lib_benches"
+path = "src/main.rs"

benchmark/benches/bench.rs

@@ -22,7 +22,7 @@ fn read_json(path: &str) -> String {
 }
 
 fn get_string() -> String {
-    read_json("./benches/example.json")
+    read_json("./example.json")
 }
 
 fn get_json() -> Value {
@@ -109,7 +109,7 @@ fn bench_select_as(b: &mut Bencher) {
 #[bench]
 fn bench_delete(b: &mut Bencher) {
     let json = get_json();
-    let mut selector = SelectorMut::new();
+    let mut selector = SelectorMut::default();
     let _ = selector.str_path(get_path());
 
     b.iter(move || {
@@ -123,13 +123,13 @@ fn bench_delete(b: &mut Bencher) {
 fn bench_select_to_compare_with_delete(b: &mut Bencher) {
     let json = &get_json();
 
-    let mut selector = Selector::new();
+    let mut selector = Selector::default();
     let _ = selector.str_path(get_path());
 
     b.iter(move || {
         for _ in 1..100 {
             let json = json.clone();
-            let mut s = Selector::new();
+            let mut s = Selector::default();
             let _ = s.compiled_path(selector.node_ref().unwrap()).value(&json);
             let _ = s.select();
         }

benchmark/benches/bench_example.rs

@@ -19,7 +19,7 @@ fn read_json(path: &str) -> String {
 }
 
 fn get_string() -> String {
-    read_json("./benches/example.json")
+    read_json("./example.json")
 }
 
 fn get_json() -> Value {
@@ -53,7 +53,7 @@ fn _selector(b: &mut Bencher, index: usize) {
     let json = get_json();
     b.iter(move || {
         for _ in 1..100 {
-            let mut selector = jsonpath::Selector::new();
+            let mut selector = jsonpath::Selector::default();
             let _ = selector.str_path(get_path(index));
             selector.value(&json);
             let r = selector.select();

benchmark/example.json

@@ -34,4 +34,4 @@
     }
   },
   "expensive": 10
-}
+}

benchmark/javascript/bench.js

@@ -43,7 +43,6 @@ function getJson() {
 const path = '$..book[?(@.price<30 && @.category=="fiction")]';
 const jp = require('jsonpath');
 const jpw = require('jsonpath-wasm');
-const jpwRs = require('jsonpath-rs');
 
 function jsonpath() {
     for (var i = 0; i < iter; i++) {
@@ -51,26 +50,6 @@ function jsonpath() {
     }
 }
 
-function nativeCompile() {
-    let template = jpwRs.compile(path);
-    for (var i = 0; i < iter; i++) {
-        let _ = template(JSON.stringify(json));
-    }
-}
-
-function nativeSelector() {
-    let selector = jpwRs.selector(getJson());
-    for (var i = 0; i < iter; i++) {
-        let _ = selector(path);
-    }
-}
-
-function nativeSelect() {
-    for (var i = 0; i < iter; i++) {
-        let _ = jpwRs.select(JSON.stringify(json), path);
-    }
-}
-
 function wasmSelector() {
     let selector = jpw.selector(getJson());
     for (var i = 0; i < iter; i++) {

benchmark/src/main.rs

@@ -0,0 +1 @@
+fn main() {}

build.sh

@@ -11,7 +11,7 @@ WASM_BROWSER_PKG="${WASM}"/browser_pkg
 WASM_NODEJS_PKG="${WASM}"/nodejs_pkg
 WASM_ALL_PKG="${WASM}"/all_pkg
 WASM_TEST="${WASM}"/tests
-BENCHES="${DIR}"/benches
+BENCHES="${DIR}"/benchmark
 BENCHES_JS="${BENCHES}"/javascript
 NODEJS="${DIR}"/nodejs
 DOCS="${DIR}"/docs
@@ -28,6 +28,16 @@ __cargo_clean () {
         cd "${DIR}" && cargo clean
 }
 
+if [ "$1" = "clippy" ]
+then
+    echo
+    __msg "clippy"
+    cargo clippy -- -D warnings && \
+    cargo clippy --all-targets --all-features -- -D warnings -A clippy::cognitive_complexity && \
+    cd "${WASM}" && cargo clippy -- -A clippy::suspicious_else_formatting && \
+    cd "${NODEJS}" && cargo clippy
+fi
+
 echo
 __msg "clean"
 rm -rf \
@@ -96,8 +106,7 @@ cd "${WASM_WWW_BENCH}" && \
     npm link jsonpath-wasm
 
 cd "${BENCHES_JS}" && \
-    npm link jsonpath-wasm && \
-    npm link jsonpath-rs
+    npm link jsonpath-wasm
 
 cd "${WASM_TEST}" && \
     npm link jsonpath-wasm

coverage.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+
+#
+# cargo install cargo-tarpaulin
+#
+
+set -e
+
+cargo tarpaulin --exclude-files nodejs wasm parser/mod.rs -v --all

docs/bench/bootstrap.js

@@ -55,24 +55,24 @@
 /******/ 		"../all_pkg/jsonpath_wasm_bg.wasm": function() {
 /******/ 			return {
 /******/ 				"./jsonpath_wasm": {
-/******/ 					"__wbindgen_cb_forget": function(p0i32) {
-/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_cb_forget"](p0i32);
-/******/ 					},
-/******/ 					"__wbg_error_af8a3e3880eae1c8": function(p0i32,p1i32) {
-/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbg_error_af8a3e3880eae1c8"](p0i32,p1i32);
-/******/ 					},
-/******/ 					"__wbindgen_object_drop_ref": function(p0i32) {
-/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_object_drop_ref"](p0i32);
-/******/ 					},
-/******/ 					"__wbindgen_string_new": function(p0i32,p1i32) {
-/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_string_new"](p0i32,p1i32);
-/******/ 					},
 /******/ 					"__wbindgen_json_parse": function(p0i32,p1i32) {
 /******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_json_parse"](p0i32,p1i32);
 /******/ 					},
 /******/ 					"__wbindgen_json_serialize": function(p0i32,p1i32) {
 /******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_json_serialize"](p0i32,p1i32);
 /******/ 					},
+/******/ 					"__wbg_error_bb0b0e541b3bff31": function(p0i32,p1i32) {
+/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbg_error_bb0b0e541b3bff31"](p0i32,p1i32);
+/******/ 					},
+/******/ 					"__wbindgen_object_drop_ref": function(p0i32) {
+/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_object_drop_ref"](p0i32);
+/******/ 					},
+/******/ 					"__wbindgen_cb_forget": function(p0i32) {
+/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_cb_forget"](p0i32);
+/******/ 					},
+/******/ 					"__wbindgen_string_new": function(p0i32,p1i32) {
+/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_string_new"](p0i32,p1i32);
+/******/ 					},
 /******/ 					"__wbg_call_88d2a6153573084e": function(p0i32,p1i32,p2i32,p3i32) {
 /******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbg_call_88d2a6153573084e"](p0i32,p1i32,p2i32,p3i32);
 /******/ 					},
@@ -94,11 +94,11 @@
 /******/ 					"__wbindgen_rethrow": function(p0i32) {
 /******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_rethrow"](p0i32);
 /******/ 					},
-/******/ 					"__wbindgen_closure_wrapper22": function(p0i32,p1i32,p2i32) {
-/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_closure_wrapper22"](p0i32,p1i32,p2i32);
+/******/ 					"__wbindgen_closure_wrapper115": function(p0i32,p1i32,p2i32) {
+/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_closure_wrapper115"](p0i32,p1i32,p2i32);
 /******/ 					},
-/******/ 					"__wbindgen_closure_wrapper24": function(p0i32,p1i32,p2i32) {
-/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_closure_wrapper24"](p0i32,p1i32,p2i32);
+/******/ 					"__wbindgen_closure_wrapper117": function(p0i32,p1i32,p2i32) {
+/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_closure_wrapper117"](p0i32,p1i32,p2i32);
 /******/ 					}
 /******/ 				}
 /******/ 			};
@@ -198,7 +198,7 @@
 /******/ 				promises.push(installedWasmModuleData);
 /******/ 			else {
 /******/ 				var importObject = wasmImportObjects[wasmModuleId]();
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docs/bootstrap.js

@@ -55,24 +55,24 @@
 /******/ 		"../all_pkg/jsonpath_wasm_bg.wasm": function() {
 /******/ 			return {
 /******/ 				"./jsonpath_wasm": {
-/******/ 					"__wbindgen_cb_forget": function(p0i32) {
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-/******/ 					},
-/******/ 					"__wbg_error_af8a3e3880eae1c8": function(p0i32,p1i32) {
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-/******/ 					},
-/******/ 					"__wbindgen_object_drop_ref": function(p0i32) {
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-/******/ 					},
-/******/ 					"__wbindgen_string_new": function(p0i32,p1i32) {
-/******/ 						return installedModules["../all_pkg/jsonpath_wasm.js"].exports["__wbindgen_string_new"](p0i32,p1i32);
-/******/ 					},
 /******/ 					"__wbindgen_json_parse": function(p0i32,p1i32) {
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 /******/ 					},
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+/******/ 					},
+/******/ 					"__wbindgen_string_new": function(p0i32,p1i32) {
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@@ -94,11 +94,11 @@
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+/******/ 					"__wbindgen_closure_wrapper115": function(p0i32,p1i32,p2i32) {
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@@ -198,7 +198,7 @@
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examples/nodejs-rs/index.js

@@ -1,31 +0,0 @@
-const jsonpath = require('jsonpath-rs');
-
-let jsonObj = {
-    "school": {
-        "friends": [
-            {"name": "친구1", "age": 20},
-            {"name": "친구2", "age": 20}
-        ]
-    },
-    "friends": [
-        {"name": "친구3", "age": 30},
-        {"name": "친구4"}
-    ]
-};
-
-let ret = [
-    {"name": "친구3", "age": 30},
-    {"name": "친구1", "age": 20}
-];
-
-let selector = new jsonpath.Selector();
-selector.path('$..friends[0]');
-selector.value(jsonObj);
-
-let selectToObj = selector.selectTo();
-let selectToString = selector.selectToStr();
-
-console.log(
-    JSON.stringify(ret) == JSON.stringify(selectToObj),
-    JSON.stringify(ret) == selectToString
-);

examples/nodejs-rs/package-lock.json

@@ -1,658 +0,0 @@
-{
-  "name": "jsonpath-rs-example",
-  "requires": true,
-  "lockfileVersion": 1,
-  "dependencies": {
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-      "version": "4.1.0",
-      "resolved": "https://registry.npmjs.org/ansi-escape-sequences/-/ansi-escape-sequences-4.1.0.tgz",
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-      "requires": {
-        "array-back": "^3.0.1"
-      },
-      "dependencies": {
-        "array-back": {
-          "version": "3.1.0",
-          "resolved": "https://registry.npmjs.org/array-back/-/array-back-3.1.0.tgz",
-          "integrity": "sha512-TkuxA4UCOvxuDK6NZYXCalszEzj+TLszyASooky+i742l9TqsOdYCMJJupxRic61hwquNtppB3hgcuq9SVSH1Q=="
-        }
-      }
-    },
-    "ansi-escapes": {
-      "version": "3.2.0",
-      "resolved": "https://registry.npmjs.org/ansi-escapes/-/ansi-escapes-3.2.0.tgz",
-      "integrity": "sha512-cBhpre4ma+U0T1oM5fXg7Dy1Jw7zzwv7lt/GoCpr+hDQJoYnKVPLL4dCvSEFMmQurOQvSrwT7SL/DAlhBI97RQ=="
-    },
-    "ansi-regex": {
-      "version": "3.0.0",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-3.0.0.tgz",
-      "integrity": "sha1-7QMXwyIGT3lGbAKWa922Bas32Zg="
-    },
-    "ansi-styles": {
-      "version": "3.2.1",
-      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
-      "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
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-      "resolved": "https://registry.npmjs.org/array-back/-/array-back-2.0.0.tgz",
-      "integrity": "sha512-eJv4pLLufP3g5kcZry0j6WXpIbzYw9GUB4mVJZno9wfwiBxbizTnHCw3VJb07cBihbFX48Y7oSrW9y+gt4glyw==",
-      "requires": {
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-      }
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-    "balanced-match": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
-    },
-    "brace-expansion": {
-      "version": "1.1.11",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
-      "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
-      "requires": {
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-      }
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-    "builtins": {
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-      "integrity": "sha1-y5T662HIaWRR2zZTThQi+U8K7og="
-    },
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-      "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.1.0.tgz",
-      "integrity": "sha512-LUHGS/dge4ujbXMJrnihYMcL4AoOweGnw9Tp3kQuqy1Kx5c1qKjqvMJZ6nVJPMWJtKCTN72ZogH3oeSO9g9rXQ==",
-      "requires": {
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-        "escape-string-regexp": "^1.0.5",
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examples/nodejs-rs/package.json

@@ -1,9 +0,0 @@
-{
-  "name": "jsonpath-rs-example",
-  "scripts": {
-    "start": "node index.js"
-  },
-  "dependencies": {
-    "jsonpath-rs": "0"
-  }
-}

examples/nodejs-wasm/.gitignore

@@ -1,2 +0,0 @@
-node_modules
-dist

lua/.gitignore

@@ -0,0 +1,5 @@
+.idea/*
+.vscode
+/target/
+Cargo.lock
+docker_example/ab_results/**

lua/Cargo.toml

@@ -0,0 +1,14 @@
+[package]
+name = "jsonpath_lua"
+version = "0.1.0"
+authors = ["Changseok Han <freestrings@gmail.com>"]
+license = "MIT"
+[dependencies]
+serde = { version = "1.0", features = ["derive"] }
+serde_json = { version = "1.0", features = ["preserve_order"] }
+jsonpath_lib = { path = "../" }
+
+[[bin]]
+name = "bench"
+path = "bench_lua_vs_rust/example.rs"
+

lua/bench_lua_vs_rust/example.lua

@@ -0,0 +1,22 @@
+local jsonpath = require("jsonpath")
+
+local iter;
+if arg[1] == nil or arg[1] == '' then
+    iter = 5000;
+else
+    iter = tonumber(arg[1]);
+end
+
+print(string.format("%s - %u", "lua iter", iter));
+
+local file = io.open("../../benchmark/example.json", "r");
+io.input(file)
+local data = io.read("*a");
+io.close(file);
+
+jsonpath.init('../target/release/deps/libjsonpath_lib.so')
+local template = jsonpath.compile("$..book[?(@.price<30 && @.category==\"fiction\")]");
+for i = 0, iter do
+    local r = template(data);
+--    print(r);
+end

lua/bench_lua_vs_rust/example.rs

@@ -0,0 +1,46 @@
+extern crate jsonpath_lib as jsonpath;
+extern crate serde;
+extern crate serde_json;
+
+use std::io::Read;
+
+use serde_json::Value;
+
+fn read_json(path: &str) -> String {
+    let mut f = std::fs::File::open(path).unwrap();
+    let mut contents = String::new();
+    f.read_to_string(&mut contents).unwrap();
+    contents
+}
+
+fn get_string() -> String {
+    read_json("../../benchmark/example.json")
+}
+
+fn get_json() -> Value {
+    let string = get_string();
+    serde_json::from_str(string.as_str()).unwrap()
+}
+
+fn get_path() -> &'static str {
+    r#"$..book[?(@.price<30 && @.category=="fiction")]"#
+}
+
+fn main() {
+    let args: Vec<String> = std::env::args().collect();
+    let iter = if args.len() < 2 { 5000_usize } else { args[1].as_str().parse::<usize>().unwrap() };
+
+    println!("rust iter - {}", iter);
+
+    let json = get_json();
+    for _ in 0..iter {
+        let mut selector = jsonpath::Selector::default();
+        let _ = selector.str_path(get_path());
+        selector.value(&json);
+        let r = selector.select();
+        if r.is_err() {
+            panic!();
+        }
+//        println!("{:?}", serde_json::to_string(&r.expect("")).unwrap());
+    }
+}

lua/bench_lua_vs_rust/run.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# cd lua/bench_lua_vs_rust && ./run.sh
+
+set -e
+
+# http://luajit.org/index.html
+
+# cargo clean && \
+cargo build --release
+
+export JSONPATH_LIB_PATH="${PWD}/../target/release/deps"
+export LUA_PATH="${PWD}/../?.lua;"
+
+echo
+time cargo run --release --bin bench -- 1000
+echo
+time luajit example.lua 1000
+echo
+time cargo run --release --bin bench -- 5000
+echo
+time luajit example.lua 5000
+echo
+time cargo run --release --bin bench -- 10000
+echo
+time luajit example.lua 10000
+

lua/docker_example/default.conf

@@ -0,0 +1,107 @@
+lua_package_path '/etc/jsonpath/?.lua;;';
+
+access_log /var/log/access.log;
+error_log /var/log/error.log info;
+
+lua_shared_dict jsonpaths 1m;
+
+init_by_lua_block {
+    local pathStrings = {
+        "$.store.book[*].author",
+        "$..author",
+        "$.store.*",
+        "$.store..price",
+        "$..book[2]",
+        "$..book[-2]",
+        "$..book[0,1]",
+        "$..book[:2]",
+        "$..book[1:2]",
+        "$..book[-2:]",
+        "$..book[2:]",
+        "$..book[?(@.isbn)]",
+        "$.store.book[?(@.price == 10)]",
+        "$..*",
+        "$..book[ ?( (@.price < 13 || $.store.bicycle.price < @.price) && @.price <=10 ) ]",
+        "$.store.book[?( (@.price < 10 || @.price > 10) && @.price > 10 )]",
+        "$..[?(@.originPrice > 1)]",
+        "$.pickBanner[?(@.originPrice > 1)]"
+    }
+
+    local jp = require("jsonpath")
+    jp.init("/etc/jsonpath/libjsonpath_lib.so")
+    local jsonpaths = ngx.shared.jsonpaths
+
+    for i, path in ipairs(pathStrings) do
+        jsonpaths:set(i, path)
+        jp.compile(path)
+    end
+
+}
+
+server {
+    listen 80;
+    server_name localhost;
+
+    gzip on;
+    gzip_types text/plain application/json;
+    #gzip_comp_level 6;
+    #gzip_vary on;
+
+    location / {
+        add_header 'Cache-Control' 'no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0';
+        expires off;
+
+        default_type 'text/plain';
+        root /etc/jsonpath/example;
+    }
+
+    location /filter {
+        # https://developer.mozilla.org/ko/docs/Web/HTTP/Headers/Accept-Encoding
+        proxy_set_header Accept-Encoding "*";
+
+        default_type 'text/plain';
+
+        rewrite /filter/(.*) /$1 break;
+        proxy_pass http://localhost;
+
+        header_filter_by_lua_block {
+            ngx.header["content-length"] = nil
+
+            local args = ngx.req.get_uri_args()
+            local jsonpaths = ngx.shared.jsonpaths
+            local path = jsonpaths:get(args['path'])
+
+            if path == nil then
+                 ngx.exit(ngx.HTTP_BAD_REQUEST)
+            end
+        }
+
+        body_filter_by_lua_block {
+            local chunk, eof = ngx.arg[1], ngx.arg[2]
+            local buf = ngx.ctx.buf
+
+            if eof then
+                if buf then
+                    local args = ngx.req.get_uri_args()
+                    local path = ngx.shared.jsonpaths:get(args['path'])
+                    local jsonpath = require("jsonpath")
+                    local template = jsonpath.exec(path)
+                    local json = buf .. chunk
+                    local result = template(json)
+                    ngx.arg[1] = result
+                    return
+                end
+
+                return
+            end
+
+            if buf then
+                ngx.ctx.buf = buf .. chunk
+            else
+                ngx.ctx.buf = chunk
+            end
+
+            ngx.arg[1] = nil
+        }
+    }
+}

lua/docker_example/init.lua

@@ -0,0 +1,3 @@
+local jsonpath = require("jsonpath")
+jsonpath.init("/etc/jsonpath/libjsonpath_lib.so")
+ngx.log(ngx.INFO, "loaded libjsonpath_lib.so")

lua/docker_example/run.sh

@@ -0,0 +1,25 @@
+#!/usr/bin/env bash
+
+# cd lua && cargo build --release && cd docker_example && ./run.sh
+
+set -v
+
+[ "$(docker ps -a | grep jsonpath)" ] && docker kill jsonpath
+
+docker run -d --rm --name jsonpath \
+  -v "${PWD}/../../benchmark/example.json":/etc/jsonpath/example/example.json:ro \
+  -v "${PWD}/../../benchmark/big_example.json":/etc/jsonpath/example/big_example.json:ro \
+  -v "${PWD}/../jsonpath.lua":/etc/jsonpath/jsonpath.lua:ro \
+  -v "${PWD}/init.lua":/etc/jsonpath/init.lua:ro \
+  -v "${PWD}/../target/release/deps/libjsonpath_lib.so":/etc/jsonpath/libjsonpath_lib.so:ro \
+  -v "${PWD}/default.conf":/etc/nginx/conf.d/default.conf \
+  -p 8080:80 \
+  openresty/openresty:bionic
+
+#for i in {1..16}; do
+#  curl http://localhost:8080/filter/example.json?path=${i}
+#  echo
+#done
+
+#ab -n 1000 -c 10 http://localhost:8080/filter/big_example.json?path=17
+#ab -n 1000 -c 10 http://localhost:8080/filter/big_example.json?path=18

lua/jsonpath.lua

@@ -0,0 +1,60 @@
+local ffi = require('ffi')
+
+ffi.cdef [[
+const char* ffi_select(const char *json_str, const char *path);
+void *ffi_path_compile(const char *path);
+const char* ffi_select_with_compiled_path(void *ptr, const char *json_str);
+]]
+
+local jsonpath
+local cache = {}
+local module = {}
+
+local function existsVaiable(var)
+    for k, _ in pairs(_G) do
+        if k == var then
+            return true
+        end
+    end
+end
+
+local _ngx
+if existsVaiable('ngx') then
+    _ngx = ngx
+else
+    _ngx = {}
+    _ngx.log = function(level, msg)
+        print('['..level..'] ' .. msg)
+    end
+end
+
+function module.compile(path)
+    assert(jsonpath, '"libjsonpath_lib" is not loaded')
+
+    if(cache[path] == nil) then
+        cache[path] = jsonpath.ffi_path_compile(path)
+        _ngx.log(_ngx.INFO, 'compile : [' .. path .. ']')
+    end
+end
+
+function module.exec(path)
+    local compiledPath = cache[path]
+
+    if(cache[path] == nil) then
+        assert(jsonpath, path .. ": is not compiled")
+    end
+
+    return function(jsonStr)
+        local result = jsonpath.ffi_select_with_compiled_path(compiledPath, jsonStr)
+        return ffi.string(result);
+    end
+end
+
+function module.init(path)
+    if jsonpath == nil then
+        jsonpath = ffi.load(path)
+        _ngx.log(_ngx.INFO, '"' .. path .. '" initialized')
+    end
+end
+
+return module

nodejs/.gitignore

@@ -1,7 +0,0 @@
-native/target
-native/index.node
-native/artifacts.json
-**/*~
-**/node_modules
-.idea
-build

nodejs/README.md

@@ -1,334 +0,0 @@
-# jsonpath-rs
-
-[![Build Status](https://travis-ci.org/freestrings/jsonpath.svg?branch=master)](https://travis-ci.org/freestrings/jsonpath)
-
-It is native-addon of [jsonpath_lib](https://github.com/freestrings/jsonpath) that is [JsonPath](https://goessner.net/articles/JsonPath/) engine written in Rust.
-
-## Notice
-
-Pre-built 바이너리는 제공하진 않고 소스를 컴파일해서 설치한다. 만약 Rust가 설치되지 않았다면 자동으로 설치된다.
-
-Build from source instead of using pre-built binary, and if Rust is not installed, the latest version is automatically installed.
-
-> Not yet tested in Windows.
-
-> Supported node version is under v12.0.
-
-## APIs
-
-<details><summary><b>npm package</b></summary>
-
-```javascript
-const jsonpath = require('jsonpath-rs');
-```
-
-</details>
-
-<details><summary><b>Javascript - jsonpath.Selector class</b></summary>
-
-```javascript
-let jsonObj = {
-    "school": {
-        "friends": [
-            {"name": "친구1", "age": 20},
-            {"name": "친구2", "age": 20}
-        ]
-    },
-    "friends": [
-        {"name": "친구3", "age": 30},
-        {"name": "친구4"}
-    ]
-};
-
-let ret = [
-    {"name": "친구3", "age": 30},
-    {"name": "친구1", "age": 20}
-];
-
-let selector = new jsonpath.Selector()
-    .path('$..friends[0]')
-    .value(jsonObj);
-
-let retObj = selector.select();
-
-console.log(JSON.stringify(ret) == JSON.stringify(retObj));
-
-// => true
-```
-
-</details>
-
-<details><summary><b>Javascript - jsonpath.SelectorMut class</b></summary>
-
-빌더 패턴 제약은 `Selector class`와 동일하다.
-
-```javascript
-let jsonObj = {
-    'school': {
-        'friends': [
-            {'name': '친구1', 'age': 20},
-            {'name': '친구2', 'age': 20},
-        ],
-    },
-    'friends': [
-        {'name': '친구3', 'age': 30},
-        {'name': '친구4'},
-    ],
-};
-
-let selector = new jsonpath.SelectorMut();
-selector.path('$..[?(@.age == 20)]');
-
-{
-    selector.value(jsonObj);
-    selector.deleteValue();
-
-    let resultObj = {
-        'school': {'friends': [null, null]},
-        'friends': [
-            {'name': '친구3', 'age': 30},
-            {'name': '친구4'},
-        ],
-    };
-    console.log(JSON.stringify(selector.take()) !== JSON.stringify(resultObj));
-    
-    // => true
-}
-
-{
-    selector.value(jsonObj);
-    selector.replaceWith((v) => {
-        v.age = v.age * 2;
-        return v;
-    });
-
-    let resultObj = {
-        'school': {
-            'friends': [
-                {'name': '친구1', 'age': 40},
-                {'name': '친구2', 'age': 40},
-            ],
-        },
-        'friends': [
-            {'name': '친구3', 'age': 30},
-            {'name': '친구4'},
-        ],
-    };
-    console.log(JSON.stringify(selector.take()) !== JSON.stringify(resultObj));
-    
-    // => true
-}
-```
-
-</details>
-
-<details><summary><b>Javascript - jsonpath.select(json: string|object, jsonpath: string)</b></summary>
-
-```javascript
-let jsonObj = {
-    "school": {
-        "friends": [
-            {"name": "친구1", "age": 20},
-            {"name": "친구2", "age": 20}
-        ]
-    },
-    "friends": [
-        {"name": "친구3", "age": 30},
-        {"name": "친구4"}
-    ]
-};
-
-let ret = [
-    {"name": "친구3", "age": 30},
-    {"name": "친구1", "age": 20}
-];
-
-
-let selectAsString = jsonpath.select(JSON.stringify(jsonObj), '$..friends[0]');
-let selectAsObj = jsonpath.select(jsonObj, '$..friends[0]');
-
-console.log(
-    JSON.stringify(ret) == JSON.stringify(selectAsString),
-    JSON.stringify(ret) == JSON.stringify(selectAsObj)
-);
-
-// => true, true
-```
-
-</details>
-
-<details><summary><b>Javascript - jsonpath.compile(jsonpath: string)</b></summary>
-
-```javascript
-let template = jsonpath.compile('$..friends[0]');
-
-let jsonObj = {
-    "school": {
-        "friends": [
-            {"name": "친구1", "age": 20},
-            {"name": "친구2", "age": 20}
-        ]
-    },
-    "friends": [
-        {"name": "친구3", "age": 30},
-        {"name": "친구4"}
-    ]
-};
-
-let ret = [
-    {"name": "친구3", "age": 30},
-    {"name": "친구1", "age": 20}
-];
-
-let selectAsString = template(JSON.stringify(jsonObj));
-let selectAsObj = template(jsonObj);
-
-console.log(
-    JSON.stringify(ret) == JSON.stringify(selectAsString),
-    JSON.stringify(ret) == JSON.stringify(selectAsObj)
-);
-
-// => true, true
-
-let jsonObj2 = {
-    "school": {
-        "friends": [
-            {"name": "Millicent Norman"},
-            {"name": "Vincent Cannon"}
-        ]
-    },
-    "friends": [ {"age": 30}, {"age": 40} ]
-};
-
-let ret2 = [
-    {"age": 30},
-    {"name": "Millicent Norman"}
-];
-
-let selectAsString2 = template(JSON.stringify(jsonObj2));
-let selectAsObj2 = template(jsonObj2);
-
-console.log(
-        JSON.stringify(ret2) == JSON.stringify(selectAsString2),
-        JSON.stringify(ret2) == JSON.stringify(selectAsObj2)
-);
-
-// => true, true
-```
-    
-</details>
-
-<details><summary><b>Javascript - jsonpath.selector(json: string|object)</b></summary>
-
-```javascript
-let jsonObj = {
-    "school": {
-        "friends": [
-            {"name": "친구1", "age": 20},
-            {"name": "친구2", "age": 20}
-        ]
-    },
-    "friends": [
-        {"name": "친구3", "age": 30},
-        {"name": "친구4"}
-    ]
-};
-
-let ret1 = [
-    {"name": "친구3", "age": 30},
-    {"name": "친구1", "age": 20}
-];
-
-let ret2 = [
-    {"name": "친구4"},
-    {"name": "친구2", "age": 20}
-];
-
-let selector = jsonpath.selector(jsonObj);
-// or as json string 
-// let selector = jsonpath.selector(JSON.stringify(jsonObj));
-
-let select1 = selector('$..friends[0]');
-let select2 = selector('$..friends[1]');
-
-console.log(
-    JSON.stringify(ret1) == JSON.stringify(select1),
-    JSON.stringify(ret2) == JSON.stringify(select2)
-);
-
-// => true, true
-```
-
-</details>
-
-<details><summary><b>Javascript - jsonpath.deleteValue(json: string|object, path: string)</b></summary>
-
-```javascript
-let jsonObj = {
-    "school": {
-        "friends": [
-            {"name": "친구1", "age": 20},
-            {"name": "친구2", "age": 20}
-        ]
-    },
-    "friends": [
-        {"name": "친구3", "age": 30},
-        {"name": "친구4"}
-    ]
-};
-
-let _1 = jsonpath.deleteValue(jsonObj, '$..friends[0]');
-let result = jsonpath.deleteValue(_1, '$..friends[1]');
-
-console.log(JSON.stringify(result) !== JSON.stringify({
-    "school": { "friends": [null, null]},
-    "friends": [null, null]
-}));
-
-// => true
-
-```
-
-</details>
-
-<details><summary><b>Javascript - jsonpath.replaceWith(json: string|object, path: string, fun: function(json: object) => json: object</b></summary>
-
-```javascript
-let jsonObj = {
-    "school": {
-        "friends": [
-            {"name": "친구1", "age": 20},
-            {"name": "친구2", "age": 20}
-        ]
-    },
-    "friends": [
-        {"name": "친구3", "age": 30},
-        {"name": "친구4"}
-    ]
-};
-
-let result = jsonpath.replaceWith(jsonObj, '$..friends[0]', (v) => {
-    v.age = v.age * 2;
-    return v;
-});
-
-console.log(JSON.stringify(result) === JSON.stringify({
-    "school": {
-        "friends": [
-            {"name": "친구1", "age": 40},
-            {"name": "친구2", "age": 20}
-        ]
-    },
-    "friends": [
-        {"name": "친구3", "age": 60},
-        {"name": "친구4"}
-    ]
-}));
-
-// => true
-
-```
-
-</details>
-
-[Javascript - Other Examples](https://github.com/freestrings/jsonpath/wiki/Javascript-examples)

nodejs/build.sh

@@ -1,10 +0,0 @@
-#!/bin/bash
-
-if ! [ -x "$(command -v rustc)" ]; then
-    echo "install rust"
-    curl https://sh.rustup.rs -sSf > /tmp/rustup.sh
-    sh /tmp/rustup.sh -y
-    export PATH="$HOME/.cargo/bin:$PATH"
-    source "$HOME/.cargo/env"
-fi
-check-node-version --node '<12.0' && neon build --release

nodejs/lib/index.js

@@ -1,149 +0,0 @@
-const {
-    CompileFn,
-    SelectorFn,
-    selectStr,
-    deleteValue: _deleteValue,
-    replaceWith: _replaceWith,
-    Selector: _Selector,
-    SelectorMut: _SelectorMut
-} = require('../native');
-
-function compile(path) {
-    let compile = new CompileFn(path);
-    return (json) => {
-        if(typeof json != 'string') {
-            json = JSON.stringify(json)
-        }
-        return JSON.parse(compile.template(json));
-    };
-}
-
-function selector(json) {
-    if(typeof json != 'string') {
-        json = JSON.stringify(json)
-    }
-    let selector = new SelectorFn(json);
-    return (path) => {
-        return JSON.parse(selector.select(path));
-    }
-}
-
-function select(json, path) {
-    if(typeof json != 'string') {
-        json = JSON.stringify(json)
-    }
-    return JSON.parse(selectStr(json, path));
-}
-
-function deleteValue(json, path) {
-    if(typeof json != 'string') {
-        json = JSON.stringify(json)
-    }
-    return JSON.parse(_deleteValue(json, path));
-}
-
-function replaceWith(json, path, fun) {
-    if(typeof json != 'string') {
-        json = JSON.stringify(json)
-    }
-    let result = _replaceWith(json, path, (v) => {
-        let result = fun(JSON.parse(v));
-        if(typeof result != 'string') {
-            result = JSON.stringify(result)
-        }
-        return result;
-    });
-    if(typeof result == 'string') {
-        result = JSON.parse(result);
-    }
-    return result;
-}
-
-class Selector {
-    constructor() {
-        this._selector = new _Selector();
-        return this;
-    }
-
-    path(path) {
-        this._selector.path(path);
-        return this;
-    }
-
-    value(json) {
-        if(typeof json != 'string') {
-            json = JSON.stringify(json)
-        }
-        this._selector.value(json);
-        return this;
-    }
-
-    select() {
-        return JSON.parse(this._selector.select());
-    }
-}
-
-class SelectorMut {
-    constructor() {
-        return this;
-    }
-
-    path(path) {
-        this._path = path;
-        return this;
-    }
-
-    value(json) {
-        if(typeof json != 'string') {
-            json = JSON.stringify(json)
-        }
-        this._json = json;
-        return this;
-    }
-
-    deleteValue() {
-        let selector = new _SelectorMut();
-        if(!this._path) {
-            selector.emptyPathError();
-            return;
-        }
-
-        if(!this._json) {
-            selector.emptyValueError();
-            return;
-        }
-
-        this._json = deleteValue(this._json, this._path);
-        return this;
-    }
-
-    replaceWith(fun) {
-        let selector = new _SelectorMut();
-        if(!this._path) {
-            selector.emptyPathError();
-            return;
-        }
-        if(!this._json) {
-            selector.emptyValueError();
-            return;
-        }
-        this._json = replaceWith(this._json, this._path, fun);
-        return this;
-    }
-
-    take() {
-        let json = this._json;
-        delete this._json;
-        return json;
-    }
-}
-
-module.exports = {
-    compile,
-    selector,
-    select,
-    deleteValue,
-    replaceWith,
-    Selector,
-    SelectorMut
-};

nodejs/native/.gitignore

@@ -1,5 +0,0 @@
-.idea/*
-.vscode
-!.idea/runConfigurations/
-/target/
-Cargo.lock

nodejs/native/Cargo.toml

@@ -1,25 +0,0 @@
-[package]
-name = "jsonpath4nodejs"
-version = "0.2.0"
-authors = ["Changseok Han <freestrings@gmail.com>"]
-description = "jsonpath_lib bindings for nodejs"
-keywords = ["library", "jsonpath", "json", "nodejs"]
-repository = "https://github.com/freestrings/jsonpath"
-license = "MIT"
-
-build = "build.rs"
-exclude = ["artifacts.json", "index.node"]
-
-[build-dependencies]
-neon-build = "0.2.0"
-
-[dependencies]
-jsonpath_lib = "0.2.0"
-#jsonpath_lib = { path = "../../" }
-neon = "0.2.0"
-neon-serde = "0.1.1"
-serde_json = { version = "1.0", features = ["preserve_order"] }
-
-[lib]
-name = "jsonpath4nodejs"
-crate-type = ["dylib"]

nodejs/native/build.rs

@@ -1,7 +0,0 @@
-extern crate neon_build;
-
-fn main() {
-    neon_build::setup(); // must be called in build.rs
-
-    // add project-specific build logic here...
-}

nodejs/native/src/lib.rs

@@ -1,269 +0,0 @@
-extern crate jsonpath_lib as jsonpath;
-#[macro_use]
-extern crate neon;
-extern crate neon_serde;
-extern crate serde_json;
-
-use jsonpath::{JsonPathError, Node, Parser, Selector};
-use neon::prelude::*;
-use serde_json::Value;
-
-///
-/// `neon_serde::from_value` has very poor performance.
-///
-fn select(mut ctx: FunctionContext) -> JsResult<JsValue> {
-    let json_val = ctx.argument::<JsValue>(0)?;
-    let json: Value = neon_serde::from_value(&mut ctx, json_val)?;
-    let path = ctx.argument::<JsString>(1)?.value();
-
-    match jsonpath::select(&json, path.as_str()) {
-        Ok(value) => Ok(neon_serde::to_value(&mut ctx, &value)?),
-        Err(e) => panic!("{:?}", e)
-    }
-}
-
-fn select_str(mut ctx: FunctionContext) -> JsResult<JsValue> {
-    let json_val = ctx.argument::<JsString>(0)?.value();
-    let path = ctx.argument::<JsString>(1)?.value();
-    match jsonpath::select_as_str(&json_val, path.as_str()) {
-        Ok(value) => Ok(JsString::new(&mut ctx, &value).upcast()),
-        Err(e) => panic!("{:?}", e)
-    }
-}
-
-fn delete(mut ctx: FunctionContext) -> JsResult<JsValue> {
-    let json_val = ctx.argument::<JsString>(0)?.value();
-    let json: Value = match serde_json::from_str(&json_val) {
-        Ok(value) => value,
-        Err(e) => panic!("{:?}", JsonPathError::Serde(e.to_string()))
-    };
-    let path = ctx.argument::<JsString>(1)?.value();
-    match jsonpath::delete(json, &path) {
-        Ok(value) => Ok(JsString::new(&mut ctx, match serde_json::to_string(&value) {
-            Ok(value) => value,
-            Err(e) => panic!("{:?}", JsonPathError::Serde(e.to_string()))
-        }).upcast()),
-        Err(e) => panic!("{:?}", e)
-    }
-}
-
-fn replace_with(mut ctx: FunctionContext) -> JsResult<JsValue> {
-    let json_val = ctx.argument::<JsString>(0)?.value();
-    let json: Value = match serde_json::from_str(&json_val) {
-        Ok(value) => value,
-        Err(e) => panic!("{:?}", JsonPathError::Serde(e.to_string()))
-    };
-    let path = ctx.argument::<JsString>(1)?.value();
-    let fun = ctx.argument::<JsFunction>(2)?;
-    match jsonpath::replace_with(json, &path, &mut |v| {
-        let json_str = JsString::new(&mut ctx, match serde_json::to_string(v) {
-            Ok(value) => value,
-            Err(e) => panic!("{:?}", JsonPathError::Serde(e.to_string()))
-        });
-
-        let null = ctx.null();
-        let args = vec![ctx.string(json_str.value())];
-        let result = match fun.call(&mut ctx, null, args) {
-            Ok(result) => result,
-            Err(e) => panic!("{:?}", e)
-        };
-        let json_str = match result.downcast::<JsString>() {
-            Ok(v) => v.value(),
-            Err(e) => panic!("{:?}", JsonPathError::Serde(e.to_string()))
-        };
-        match serde_json::from_str(&json_str) {
-            Ok(v) => v,
-            Err(e) => panic!("{:?}", JsonPathError::Serde(e.to_string()))
-        }
-    }) {
-        Ok(value) => Ok(JsString::new(&mut ctx, match serde_json::to_string(&value) {
-            Ok(value) => value,
-            Err(e) => panic!("{:?}", JsonPathError::Serde(e.to_string()))
-        }).upcast()),
-        Err(e) => panic!("{:?}", e)
-    }
-}
-
-pub struct SelectorCls {
-    node: Option<Node>,
-    value: Option<Value>,
-}
-
-impl SelectorCls {
-    fn path(&mut self, path: &str) {
-        let node = match Parser::compile(path) {
-            Ok(node) => node,
-            Err(e) => panic!("{:?}", e)
-        };
-
-        self.node = Some(node);
-    }
-
-    fn value(&mut self, json_str: &str) {
-        let value: Value = match serde_json::from_str(&json_str) {
-            Ok(value) => value,
-            Err(e) => panic!("{:?}", JsonPathError::Serde(e.to_string()))
-        };
-
-        self.value = Some(value);
-    }
-
-    fn select(&self) -> String {
-        let node = match &self.node {
-            Some(node) => node,
-            None => panic!("{:?}", JsonPathError::EmptyPath)
-        };
-
-        let value = match &self.value {
-            Some(value) => value,
-            None => panic!("{:?}", JsonPathError::EmptyValue)
-        };
-
-        let mut selector = Selector::new();
-        selector.compiled_path(node);
-        selector.value(&value);
-        match selector.select_as_str() {
-            Ok(ret) => ret,
-            Err(e) => panic!("{:?}", e)
-        }
-    }
-}
-
-pub struct SelectorMutCls {}
-
-declare_types! {
-    pub class JsCompileFn for SelectorCls {
-        init(mut ctx) {
-            let path = ctx.argument::<JsString>(0)?.value();
-            let node = match Parser::compile(path.as_str()) {
-                Ok(node) => node,
-                Err(e) => panic!("{:?}", e)
-            };
-
-            Ok(SelectorCls { node: Some(node), value: None })
-        }
-
-        method template(mut ctx) {
-            let mut this = ctx.this();
-
-            let json_str = ctx.argument::<JsString>(0)?.value();
-            {
-                let guard = ctx.lock();
-                let mut this = this.borrow_mut(&guard);
-                let value: Value = match serde_json::from_str(&json_str) {
-                    Ok(value) => value,
-                    Err(e) => panic!("{:?}", JsonPathError::Serde(e.to_string()))
-                };
-                this.value = Some(value);
-            };
-
-            let result_str = {
-                let guard = ctx.lock();
-                let this = this.borrow(&guard);
-                this.select()
-            };
-
-            Ok(JsString::new(&mut ctx, &result_str).upcast())
-        }
-    }
-
-    pub class JsSelectorFn for SelectorCls {
-        init(mut ctx) {
-            let json_str = ctx.argument::<JsString>(0)?.value();
-            let value: Value = match serde_json::from_str(&json_str) {
-                Ok(value) => value,
-                Err(e) => panic!("{:?}", JsonPathError::Serde(e.to_string()))
-            };
-
-            Ok(SelectorCls { node: None, value: Some(value) })
-        }
-
-        method select(mut ctx) {
-            let mut this = ctx.this();
-
-            let path = ctx.argument::<JsString>(0)?.value();
-            {
-                let guard = ctx.lock();
-                let mut this = this.borrow_mut(&guard);
-                this.path(&path);
-            }
-
-            let result_str = {
-                let guard = ctx.lock();
-                let this = this.borrow(&guard);
-                this.select()
-            };
-
-            Ok(JsString::new(&mut ctx, &result_str).upcast())
-        }
-    }
-
-    pub class JsSelector for SelectorCls {
-        init(mut _ctx) {
-            Ok(SelectorCls { node: None, value: None })
-        }
-
-        method path(mut ctx) {
-            let mut this = ctx.this();
-
-            let path = ctx.argument::<JsString>(0)?.value();
-            {
-                let guard = ctx.lock();
-                let mut this = this.borrow_mut(&guard);
-                let _ = this.path(&path);
-            }
-
-            Ok(JsUndefined::new().upcast())
-        }
-
-        method value(mut ctx) {
-            let mut this = ctx.this();
-
-            let json_str = ctx.argument::<JsString>(0)?.value();
-            {
-                let guard = ctx.lock();
-                let mut this = this.borrow_mut(&guard);
-                let _ = this.value(&json_str);
-            }
-
-            Ok(JsUndefined::new().upcast())
-        }
-
-        method select(mut ctx) {
-             let this = ctx.this();
-
-             let result_str = {
-                let guard = ctx.lock();
-                let this = this.borrow(&guard);
-                this.select()
-             };
-
-             Ok(JsString::new(&mut ctx, &result_str).upcast())
-        }
-    }
-
-    pub class JsSelectorMut for SelectorMutCls {
-        init(mut _ctx) {
-            Ok(SelectorMutCls {})
-        }
-
-        method emptyPathError(mut _ctx) {
-            panic!("{:?}", JsonPathError::EmptyPath);
-        }
-
-        method emptyValueError(mut _ctx) {
-            panic!("{:?}", JsonPathError::EmptyValue);
-        }
-    }
-}
-register_module!(mut m, {
-    m.export_class::<JsCompileFn>("CompileFn").expect("CompileFn class error");
-    m.export_class::<JsSelectorFn>("SelectorFn").expect("SelectorFn class error");
-    m.export_class::<JsSelector>("Selector").expect("Selector class error");
-    m.export_class::<JsSelectorMut>("SelectorMut").expect("SelectorMut class error");
-    m.export_function("select", select)?;
-    m.export_function("deleteValue", delete)?;
-    m.export_function("replaceWith", replace_with)?;
-    m.export_function("selectStr", select_str)?;
-    Ok(())
-});

nodejs/package.json

@@ -1,35 +0,0 @@
-{
-  "name": "jsonpath-rs",
-  "version": "0.2.0",
-  "description": "It is JsonPath implementation. The core implementation is written in Rust",
-  "author": "Changseok Han <freestrings@gmail.com>",
-  "license": "MIT",
-  "keywords": [
-    "jsonpath",
-    "native-addon",
-    "rust-binding",
-    "rust",
-    "json",
-    "parsing"
-  ],
-  "main": "lib/index.js",
-  "dependencies": {
-    "check-node-version": "*",
-    "neon-cli": "^0.2.0"
-  },
-  "scripts": {
-    "install": "./build.sh",
-    "test": "mocha"
-  },
-  "devDependencies": {
-    "mocha": "^6.1.4"
-  },
-  "repository": {
-    "type": "git",
-    "url": "git+https://github.com/freestrings/jsonpath.git"
-  },
-  "engineStrict": true,
-  "engines": {
-    "node": ">=8.0 <12.0"
-  }
-}

nodejs/test/index.spec.js

@@ -1,800 +0,0 @@
-const jsonpath = require('../lib/index.js');
-
-let jsonObj = {
-    "store": {
-        "book": [
-            {
-                "category": "reference",
-                "author": "Nigel Rees",
-                "title": "Sayings of the Century",
-                "price": 8.95
-            },
-            {
-                "category": "fiction",
-                "author": "Evelyn Waugh",
-                "title": "Sword of Honour",
-                "price": 12.99
-            },
-            {
-                "category": "fiction",
-                "author": "Herman Melville",
-                "title": "Moby Dick",
-                "isbn": "0-553-21311-3",
-                "price": 8.99
-            },
-            {
-                "category": "fiction",
-                "author": "J. R. R. Tolkien",
-                "title": "The Lord of the Rings",
-                "isbn": "0-395-19395-8",
-                "price": 22.99
-            }
-        ],
-        "bicycle": {
-            "color": "red",
-            "price": 19.95
-        }
-    },
-    "expensive": 10
-};
-
-let list = {
-    '$.store.book[*].author': [
-        "Nigel Rees",
-        "Evelyn Waugh",
-        "Herman Melville",
-        "J. R. R. Tolkien"
-    ],
-
-    '$..author':[
-        "Nigel Rees",
-        "Evelyn Waugh",
-        "Herman Melville",
-        "J. R. R. Tolkien"
-    ],
-
-    '$.store.*': [
-        [
-            {
-                "category": "reference",
-                "author": "Nigel Rees",
-                "title": "Sayings of the Century",
-                "price": 8.95
-            },
-            {
-                "category": "fiction",
-                "author": "Evelyn Waugh",
-                "title": "Sword of Honour",
-                "price": 12.99
-            },
-            {
-                "category": "fiction",
-                "author": "Herman Melville",
-                "title": "Moby Dick",
-                "isbn": "0-553-21311-3",
-                "price": 8.99
-            },
-            {
-                "category": "fiction",
-                "author": "J. R. R. Tolkien",
-                "title": "The Lord of the Rings",
-                "isbn": "0-395-19395-8",
-                "price": 22.99
-            }
-        ],
-        {
-            "color": "red",
-            "price": 19.95
-        }
-    ],
-
-    '$.store..price':[
-        8.95,
-        12.99,
-        8.99,
-        22.99,
-        19.95
-    ],
-
-    '$..book[2]': [
-        {
-            "category": "fiction",
-            "author": "Herman Melville",
-            "title": "Moby Dick",
-            "isbn": "0-553-21311-3",
-            "price": 8.99
-        }
-    ],
-
-    '$..book[-2]': [
-        {
-            "category": "fiction",
-            "author": "Herman Melville",
-            "title": "Moby Dick",
-            "isbn": "0-553-21311-3",
-            "price": 8.99
-        }
-    ],
-
-    '$..book[0,1]': [
-        {
-            "category": "reference",
-            "author": "Nigel Rees",
-            "title": "Sayings of the Century",
-            "price": 8.95
-        },
-        {
-            "category": "fiction",
-            "author": "Evelyn Waugh",
-            "title": "Sword of Honour",
-            "price": 12.99
-        }
-    ],
-
-    '$..book[:2]': [
-        {
-            "category": "reference",
-            "author": "Nigel Rees",
-            "title": "Sayings of the Century",
-            "price": 8.95
-        },
-        {
-            "category": "fiction",
-            "author": "Evelyn Waugh",
-            "title": "Sword of Honour",
-            "price": 12.99
-        }
-    ],
-
-    '$..book[1:2]': [
-        {
-            "category": "fiction",
-            "author": "Evelyn Waugh",
-            "title": "Sword of Honour",
-            "price": 12.99
-        }
-    ],
-
-    '$..book[-2:]': [
-        {
-            "category": "fiction",
-            "author": "Herman Melville",
-            "title": "Moby Dick",
-            "isbn": "0-553-21311-3",
-            "price": 8.99
-        },
-        {
-            "category": "fiction",
-            "author": "J. R. R. Tolkien",
-            "title": "The Lord of the Rings",
-            "isbn": "0-395-19395-8",
-            "price": 22.99
-        }
-    ],
-
-    '$..book[2:]': [
-        {
-            "category": "fiction",
-            "author": "Herman Melville",
-            "title": "Moby Dick",
-            "isbn": "0-553-21311-3",
-            "price": 8.99
-        },
-        {
-            "category": "fiction",
-            "author": "J. R. R. Tolkien",
-            "title": "The Lord of the Rings",
-            "isbn": "0-395-19395-8",
-            "price": 22.99
-        }
-    ],
-
-    '$..book[?(@.isbn)]': [
-        {
-            "category": "fiction",
-            "author": "Herman Melville",
-            "title": "Moby Dick",
-            "isbn": "0-553-21311-3",
-            "price": 8.99
-        },
-        {
-            "category": "fiction",
-            "author": "J. R. R. Tolkien",
-            "title": "The Lord of the Rings",
-            "isbn": "0-395-19395-8",
-            "price": 22.99
-        }
-    ],
-
-    '$.store.book[?(@.price < 10)]': [
-        {
-            "category": "reference",
-            "author": "Nigel Rees",
-            "title": "Sayings of the Century",
-            "price": 8.95
-        },
-        {
-            "category": "fiction",
-            "author": "Herman Melville",
-            "title": "Moby Dick",
-            "isbn": "0-553-21311-3",
-            "price": 8.99
-        }
-    ],
-
-    '$..*': [
-        {
-            "book": [
-                {
-                    "category": "reference",
-                    "author": "Nigel Rees",
-                    "title": "Sayings of the Century",
-                    "price": 8.95
-                },
-                {
-                    "category": "fiction",
-                    "author": "Evelyn Waugh",
-                    "title": "Sword of Honour",
-                    "price": 12.99
-                },
-                {
-                    "category": "fiction",
-                    "author": "Herman Melville",
-                    "title": "Moby Dick",
-                    "isbn": "0-553-21311-3",
-                    "price": 8.99
-                },
-                {
-                    "category": "fiction",
-                    "author": "J. R. R. Tolkien",
-                    "title": "The Lord of the Rings",
-                    "isbn": "0-395-19395-8",
-                    "price": 22.99
-                }
-            ],
-            "bicycle": {
-                "color": "red",
-                "price": 19.95
-            }
-        },
-        10,
-        [
-            {
-                "category": "reference",
-                "author": "Nigel Rees",
-                "title": "Sayings of the Century",
-                "price": 8.95
-            },
-            {
-                "category": "fiction",
-                "author": "Evelyn Waugh",
-                "title": "Sword of Honour",
-                "price": 12.99
-            },
-            {
-                "category": "fiction",
-                "author": "Herman Melville",
-                "title": "Moby Dick",
-                "isbn": "0-553-21311-3",
-                "price": 8.99
-            },
-            {
-                "category": "fiction",
-                "author": "J. R. R. Tolkien",
-                "title": "The Lord of the Rings",
-                "isbn": "0-395-19395-8",
-                "price": 22.99
-            }
-        ],
-        {
-            "color": "red",
-            "price": 19.95
-        },
-        {
-            "category": "reference",
-            "author": "Nigel Rees",
-            "title": "Sayings of the Century",
-            "price": 8.95
-        },
-        {
-            "category": "fiction",
-            "author": "Evelyn Waugh",
-            "title": "Sword of Honour",
-            "price": 12.99
-        },
-        {
-            "category": "fiction",
-            "author": "Herman Melville",
-            "title": "Moby Dick",
-            "isbn": "0-553-21311-3",
-            "price": 8.99
-        },
-        {
-            "category": "fiction",
-            "author": "J. R. R. Tolkien",
-            "title": "The Lord of the Rings",
-            "isbn": "0-395-19395-8",
-            "price": 22.99
-        },
-        "reference",
-        "Nigel Rees",
-        "Sayings of the Century",
-        8.95,
-        "fiction",
-        "Evelyn Waugh",
-        "Sword of Honour",
-        12.99,
-        "fiction",
-        "Herman Melville",
-        "Moby Dick",
-        "0-553-21311-3",
-        8.99,
-        "fiction",
-        "J. R. R. Tolkien",
-        "The Lord of the Rings",
-        "0-395-19395-8",
-        22.99,
-        "red",
-        19.95
-    ],
-
-    '$..book[ ?( (@.price < 13 || $.store.bicycle.price < @.price) && @.price <=10 ) ]': [
-        {
-            "category": "reference",
-            "author": "Nigel Rees",
-            "title": "Sayings of the Century",
-            "price": 8.95
-        },
-        {
-            "category": "fiction",
-            "author": "Herman Melville",
-            "title": "Moby Dick",
-            "isbn": "0-553-21311-3",
-            "price": 8.99
-        }
-    ]
-};
-
-describe('compile test', () => {
-    it('basic', (done) => {
-        let template = jsonpath.compile('$.a');
-        let result = template({'a': 1});
-        if (result[0] === 1) {
-            done();
-        }
-    });
-});
-
-describe('selector test', () => {
-    it('basic', (done) => {
-        let selector = jsonpath.selector({'a': 1});
-        let result = selector('$.a');
-        if (result[0] === 1) {
-            done();
-        }
-    });
-});
-
-describe('select test', () => {
-    it('basic', (done) => {
-        let result = jsonpath.select({'a': 1}, '$.a');
-        if (result[0] === 1) {
-            done();
-        }
-    });
-});
-
-describe('filter test', () => {
-
-    function run(done, path, expected) {
-        let result = jsonpath.select(jsonObj, path);
-        if (JSON.stringify(result) === JSON.stringify(expected)) {
-            done();
-        }
-    }
-
-    for( var i in list ) {
-        it(i, (done) => {
-            run (done, i, list[i]);
-        })
-    }
-});
-
-describe('SelectorMut test', () => {
-    it('delete', (done) => {
-        let jsonObjNew = JSON.parse(JSON.stringify(jsonObj));
-        let result = jsonpath.deleteValue(jsonObjNew, '$.store.book');
-        if (JSON.stringify(result) === JSON.stringify({
-            'store': {
-                'book': null,
-                'bicycle': {
-                    'color': 'red',
-                    'price': 19.95,
-                },
-            },
-            'expensive': 10,
-        })) {
-            done();
-        }
-    });
-
-    it('replaceWith', (done) => {
-        let jsonObjNew = JSON.parse(JSON.stringify(jsonObj));
-        let result = jsonpath.replaceWith(jsonObjNew, '$.store.book', (v) => {
-            let ret = v[0];
-            ret.price = 9;
-            return ret;
-        });
-        if (JSON.stringify(result) === JSON.stringify({
-            'store': {
-                'book': {
-                    'category': 'reference',
-                    'author': 'Nigel Rees',
-                    'title': 'Sayings of the Century',
-                    'price': 9,
-                },
-                'bicycle': {
-                    'color': 'red',
-                    'price': 19.95,
-                },
-            },
-            'expensive': 10,
-        })) {
-            done();
-        }
-    });
-
-    it('SeletorMut delete', (done) => {
-        let jsonObjNew = JSON.parse(JSON.stringify(jsonObj));
-        let selector = new jsonpath.SelectorMut();
-        selector.path('$.store.book').value(jsonObjNew).deleteValue();
-
-        let result = selector.take();
-        if (JSON.stringify(result) === JSON.stringify({
-            'store': {
-                'book': null,
-                'bicycle': {
-                    'color': 'red',
-                    'price': 19.95,
-                },
-            },
-            'expensive': 10,
-        })) {
-            done();
-        }
-    });
-
-    it('SeletorMut replaceWith', (done) => {
-        let jsonObjNew = JSON.parse(JSON.stringify(jsonObj));
-        let selector = new jsonpath.SelectorMut();
-        selector.path('$.store.book').value(jsonObjNew).replaceWith((v) => {
-            let ret = v[0];
-            ret.price = 9;
-            return ret;
-        });
-
-        let result = selector.take();
-        if (JSON.stringify(result) === JSON.stringify({
-            'store': {
-                'book': {
-                    'category': 'reference',
-                    'author': 'Nigel Rees',
-                    'title': 'Sayings of the Century',
-                    'price': 9,
-                },
-                'bicycle': {
-                    'color': 'red',
-                    'price': 19.95,
-                },
-            },
-            'expensive': 10,
-        })) {
-            done();
-        }
-    });
-});
-
-describe('Selector test', () => {
-    it('select', (done) => {
-        let selector = new jsonpath.Selector().value(jsonObj);
-        for(var i in list) {
-            if(JSON.stringify(list[i]) !== JSON.stringify(selector.path(i).select())) {
-                throw `fail: ${i}`;
-            }
-        }
-        done();
-    });
-});
-
-describe('README test', () => {
-    it('jsonpath.Selector', (done) => {
-        let jsonObj = {
-            "school": {
-                "friends": [
-                    {"name": "친구1", "age": 20},
-                    {"name": "친구2", "age": 20}
-                ]
-            },
-            "friends": [
-                {"name": "친구3", "age": 30},
-                {"name": "친구4"}
-            ]
-        };
-
-        let selector = new jsonpath.Selector().value(jsonObj);
-
-        {
-            let jsonObj = selector.path('$..[?(@.age >= 30)]').select();
-            let resultObj = [{"name": "친구3", "age": 30}];
-            if(JSON.stringify(jsonObj) !== JSON.stringify(resultObj)) {
-                throw 'jsonpath.Selector: $..[?(@.age >= 30)]';
-            }
-        }
-
-        {
-            let jsonObj = selector.path('$..[?(@.age == 20)]').select();
-            let resultObj = [{"name": "친구1", "age": 20}, {"name": "친구2", "age": 20}];
-            if(JSON.stringify(jsonObj) !== JSON.stringify(resultObj)) {
-                throw 'jsonpath.Selector: $..[?(@.age >= 20)]';
-            }
-        }
-
-        {
-            let jsonObj = selector.value({"friends": [ {"name": "친구5", "age": 20} ]}).select();
-            let resultObj = [{"name": "친구5", "age": 20}];
-            if(JSON.stringify(jsonObj) !== JSON.stringify(resultObj)) {
-                throw 'jsonpath.Selector: change value';
-            }
-        }
-
-        done();
-    });
-
-    it('jsonpath.SelectorMut', (done) => {
-        let jsonObj = {
-            'school': {
-                'friends': [
-                    {'name': '친구1', 'age': 20},
-                    {'name': '친구2', 'age': 20},
-                ],
-            },
-            'friends': [
-                {'name': '친구3', 'age': 30},
-                {'name': '친구4'},
-            ],
-        };
-
-        let selector = new jsonpath.SelectorMut();
-        selector.path('$..[?(@.age == 20)]');
-
-        {
-            selector.value(jsonObj).deleteValue();
-
-            let resultObj = {
-                'school': {'friends': [null, null]},
-                'friends': [
-                    {'name': '친구3', 'age': 30},
-                    {'name': '친구4'},
-                ],
-            };
-            if (JSON.stringify(selector.take()) !== JSON.stringify(resultObj)) {
-                throw 'jsonpath.SelectorMut.deleteValue';
-            }
-        }
-
-        {
-            selector.value(jsonObj).replaceWith((v) => {
-                v.age = v.age * 2;
-                return v;
-            });
-
-            let resultObj = {
-                'school': {
-                    'friends': [
-                        {'name': '친구1', 'age': 40},
-                        {'name': '친구2', 'age': 40},
-                    ],
-                },
-                'friends': [
-                    {'name': '친구3', 'age': 30},
-                    {'name': '친구4'},
-                ],
-            };
-            if (JSON.stringify(selector.take()) !== JSON.stringify(resultObj)) {
-                throw 'jsonpath.SelectorMut.replaceWith';
-            }
-        }
-
-        done();
-    });
-
-    it('jsonpath.select(json: string|object, jsonpath: string)', (done) => {
-        let jsonObj = {
-            "school": {
-                "friends": [
-                    {"name": "친구1", "age": 20},
-                    {"name": "친구2", "age": 20}
-                ]
-            },
-            "friends": [
-                {"name": "친구3", "age": 30},
-                {"name": "친구4"}
-            ]
-        };
-
-        let ret = [
-            {"name": "친구3", "age": 30},
-            {"name": "친구1", "age": 20}
-        ];
-
-
-        let selectAsString = jsonpath.select(JSON.stringify(jsonObj), '$..friends[0]');
-        let selectAsObj = jsonpath.select(jsonObj, '$..friends[0]');
-
-        if(
-            JSON.stringify(ret) !== JSON.stringify(selectAsString) ||
-            JSON.stringify(ret) !== JSON.stringify(selectAsObj)
-        ) {
-            throw 'jsonpath.select(json: string|object, jsonpath: string)';
-        }
-
-        done();
-    });
-
-    it('jsonpath.compile(jsonpath: string)', (done) => {
-        let template = jsonpath.compile('$..friends[0]');
-
-        let jsonObj = {
-            "school": {
-                "friends": [
-                    {"name": "친구1", "age": 20},
-                    {"name": "친구2", "age": 20}
-                ]
-            },
-            "friends": [
-                {"name": "친구3", "age": 30},
-                {"name": "친구4"}
-            ]
-        };
-
-        let ret = [
-            {"name": "친구3", "age": 30},
-            {"name": "친구1", "age": 20}
-        ];
-
-        let selectAsString = template(JSON.stringify(jsonObj));
-        let selectAsObj = template(jsonObj);
-
-        if(
-            JSON.stringify(ret) !== JSON.stringify(selectAsString) ||
-            JSON.stringify(ret) !== JSON.stringify(selectAsObj)
-        ) {
-            throw 'jsonpath.compile(jsonpath: string) 1';
-        }
-
-        let jsonObj2 = {
-            "school": {
-                "friends": [
-                    {"name": "Millicent Norman"},
-                    {"name": "Vincent Cannon"}
-                ]
-            },
-            "friends": [ {"age": 30}, {"age": 40} ]
-        };
-
-        let ret2 = [
-            {"age": 30},
-            {"name": "Millicent Norman"}
-        ];
-
-        let selectAsString2 = template(JSON.stringify(jsonObj2));
-        let selectAsObj2 = template(jsonObj2);
-
-        if(
-            JSON.stringify(ret2) !== JSON.stringify(selectAsString2) ||
-            JSON.stringify(ret2) !== JSON.stringify(selectAsObj2)
-        ) {
-            throw 'jsonpath.compile(jsonpath: string) 2';
-        }
-
-        done();
-    });
-
-    it('jsonpath.selector(json: string|object)', (done) => {
-        let jsonObj = {
-            "school": {
-                "friends": [
-                    {"name": "친구1", "age": 20},
-                    {"name": "친구2", "age": 20}
-                ]
-            },
-            "friends": [
-                {"name": "친구3", "age": 30},
-                {"name": "친구4"}
-            ]
-        };
-
-        let ret1 = [
-            {"name": "친구3", "age": 30},
-            {"name": "친구1", "age": 20}
-        ];
-
-        let ret2 = [
-            {"name": "친구4"},
-            {"name": "친구2", "age": 20}
-        ];
-
-        let selector = jsonpath.selector(jsonObj);
-        let select1 = selector('$..friends[0]');
-        let select2 = selector('$..friends[1]');
-
-        if(
-            JSON.stringify(ret1) !== JSON.stringify(select1) ||
-            JSON.stringify(ret2) !== JSON.stringify(select2)
-        ) {
-            throw 'jsonpath.selector(json: string|object)';
-        }
-
-        done();
-    });
-
-    it('jsonpath.deleteValue(json: string|object, path: string)', (done) => {
-        let jsonObj = {
-            "school": {
-                "friends": [
-                    {"name": "친구1", "age": 20},
-                    {"name": "친구2", "age": 20}
-                ]
-            },
-            "friends": [
-                {"name": "친구3", "age": 30},
-                {"name": "친구4"}
-            ]
-        };
-
-        let _1 = jsonpath.deleteValue(jsonObj, '$..friends[0]');
-        let result = jsonpath.deleteValue(_1, '$..friends[1]');
-
-        if(JSON.stringify(result) === JSON.stringify({
-            "school": { "friends": [null, null]},
-            "friends": [null, null]
-        })) {
-            done();
-        }
-    });
-
-    it('jsonpath.replaceWith(json: string|object, path: string, fun: function(json: object) => json: object', (done) => {
-        let jsonObj = {
-            "school": {
-                "friends": [
-                    {"name": "친구1", "age": 20},
-                    {"name": "친구2", "age": 20}
-                ]
-            },
-            "friends": [
-                {"name": "친구3", "age": 30},
-                {"name": "친구4"}
-            ]
-        };
-
-        let result = jsonpath.replaceWith(jsonObj, '$..friends[0]', (v) => {
-            v.age = v.age * 2;
-            return v;
-        });
-
-        if(JSON.stringify(result) === JSON.stringify({
-            "school": {
-                "friends": [
-                    {"name": "친구1", "age": 40},
-                    {"name": "친구2", "age": 20}
-                ]
-            },
-            "friends": [
-                {"name": "친구3", "age": 60},
-                {"name": "친구4"}
-            ]
-        })) {
-            done();
-        }
-    });
-});

src/ffi/mod.rs

@@ -0,0 +1,59 @@
+use std::ffi::{CStr, CString};
+use std::os::raw::{c_char, c_void};
+
+use {parser, select, select_as_str};
+
+const INVALID_PATH: &str = "invalid path";
+const INVALID_JSON: &str = "invalud json";
+
+fn to_str(v: *const c_char, err_msg: &str) -> &str {
+    unsafe { CStr::from_ptr(v) }.to_str().expect(err_msg)
+}
+
+fn to_char_ptr(v: &str) -> *const c_char {
+    let s = CString::new(v).unwrap_or_else(|_| panic!("invalid string: {}", v));
+    let ptr = s.as_ptr();
+    std::mem::forget(s);
+    ptr
+}
+
+#[no_mangle]
+pub extern "C" fn ffi_select(json_str: *const c_char, path: *const c_char) -> *const c_char {
+    let json_str = to_str(json_str, INVALID_JSON);
+    let path = to_str(path, INVALID_PATH);
+    match select_as_str(json_str, path) {
+        Ok(v) => to_char_ptr(v.as_str()),
+        Err(e) => {
+            panic!("{:?}", e);
+        }
+    }
+}
+
+#[no_mangle]
+#[allow(clippy::forget_copy)]
+pub extern "C" fn ffi_path_compile(path: *const c_char) -> *mut c_void {
+    let path = to_str(path, INVALID_PATH);
+    let ref_node = Box::into_raw(Box::new(parser::Parser::compile(path).unwrap()));
+    let ptr = ref_node as *mut c_void;
+    std::mem::forget(ref_node);
+    ptr
+}
+
+#[no_mangle]
+pub extern "C" fn ffi_select_with_compiled_path(
+    path_ptr: *mut c_void,
+    json_ptr: *const c_char,
+) -> *const c_char {
+    let node = unsafe { Box::from_raw(path_ptr as *mut parser::Node) };
+    let json_str = to_str(json_ptr, INVALID_JSON);
+    let json = serde_json::from_str(json_str)
+        .unwrap_or_else(|_| panic!("invalid json string: {}", json_str));
+
+    let mut selector = select::Selector::default();
+    let found = selector.compiled_path(&node).value(&json).select().unwrap();
+    std::mem::forget(node);
+
+    let result = serde_json::to_string(&found)
+        .unwrap_or_else(|_| panic!("json serialize error: {:?}", found));
+    to_char_ptr(result.as_str())
+}

src/lib.rs

@@ -125,7 +125,6 @@
 extern crate array_tool;
 extern crate core;
 extern crate env_logger;
-extern crate indexmap;
 #[macro_use]
 extern crate log;
 extern crate serde;
@@ -133,10 +132,12 @@ extern crate serde_json;
 
 use serde_json::Value;
 
-pub use parser::parser::{Node, Parser};
-pub use select::{Selector, SelectorMut};
+pub use parser::Parser; // TODO private
 pub use select::JsonPathError;
+pub use select::{Selector, SelectorMut};
 
+#[doc(hidden)]
+mod ffi;
 #[doc(hidden)]
 mod parser;
 #[doc(hidden)]
@@ -170,15 +171,13 @@ mod select;
 /// ]);
 /// ```
 pub fn compile(path: &str) -> impl FnMut(&Value) -> Result<Vec<&Value>, JsonPathError> {
-    let node = Parser::compile(path);
-    move |json| {
-        match &node {
-            Ok(node) => {
-                let mut selector = Selector::new();
-                selector.compiled_path(node).value(json).select()
-            }
-            Err(e) => Err(JsonPathError::Path(e.to_string()))
+    let node = parser::Parser::compile(path);
+    move |json| match &node {
+        Ok(node) => {
+            let mut selector = Selector::default();
+            selector.compiled_path(node).value(json).select()
         }
+        Err(e) => Err(JsonPathError::Path(e.to_string())),
     }
 }
 
@@ -216,12 +215,11 @@ pub fn compile(path: &str) -> impl FnMut(&Value) -> Result<Vec<&Value>, JsonPath
 ///     &json!({"name": "친구2", "age": 20})
 /// ]);
 /// ```
-pub fn selector<'a>(json: &'a Value) -> impl FnMut(&'a str) -> Result<Vec<&Value>, JsonPathError> {
-    let mut selector = Selector::new();
+#[allow(clippy::needless_lifetimes)]
+pub fn selector<'a>(json: &'a Value) -> impl FnMut(&str) -> Result<Vec<&'a Value>, JsonPathError> {
+    let mut selector = Selector::default();
     let _ = selector.value(json);
-    move |path: &str| {
-        selector.str_path(path)?.reset_value().select()
-    }
+    move |path: &str| selector.str_path(path)?.reset_value().select()
 }
 
 /// It is the same to `selector` function. but it deserialize the result as given type `T`.
@@ -270,12 +268,12 @@ pub fn selector<'a>(json: &'a Value) -> impl FnMut(&'a str) -> Result<Vec<&Value
 ///
 /// assert_eq!(json, ret);
 /// ```
-pub fn selector_as<T: serde::de::DeserializeOwned>(json: &Value) -> impl FnMut(&str) -> Result<Vec<T>, JsonPathError> + '_ {
-    let mut selector = Selector::new();
+pub fn selector_as<T: serde::de::DeserializeOwned>(
+    json: &Value,
+) -> impl FnMut(&str) -> Result<Vec<T>, JsonPathError> + '_ {
+    let mut selector = Selector::default();
     let _ = selector.value(json);
-    move |path: &str| {
-        selector.str_path(path)?.reset_value().select_as()
-    }
+    move |path: &str| selector.str_path(path)?.reset_value().select_as()
 }
 
 /// It is a simple select function. but it compile the jsonpath argument every time.
@@ -303,8 +301,8 @@ pub fn selector_as<T: serde::de::DeserializeOwned>(json: &Value) -> impl FnMut(&
 ///     &json!({"name": "친구1", "age": 20})
 /// ]);
 /// ```
-pub fn select<'a>(json: &'a Value, path: &'a str) -> Result<Vec<&'a Value>, JsonPathError> {
-    Selector::new().str_path(path)?.value(json).select()
+pub fn select<'a>(json: &'a Value, path: &str) -> Result<Vec<&'a Value>, JsonPathError> {
+    Selector::default().str_path(path)?.value(json).select()
 }
 
 /// It is the same to `select` function but it return the result as string.
@@ -332,7 +330,7 @@ pub fn select<'a>(json: &'a Value, path: &'a str) -> Result<Vec<&'a Value>, Json
 /// ```
 pub fn select_as_str(json_str: &str, path: &str) -> Result<String, JsonPathError> {
     let json = serde_json::from_str(json_str).map_err(|e| JsonPathError::Serde(e.to_string()))?;
-    let ret = Selector::new().str_path(path)?.value(&json).select()?;
+    let ret = Selector::default().str_path(path)?.value(&json).select()?;
     serde_json::to_string(&ret).map_err(|e| JsonPathError::Serde(e.to_string()))
 }
 
@@ -374,9 +372,12 @@ pub fn select_as_str(json_str: &str, path: &str) -> Result<String, JsonPathError
 ///
 /// assert_eq!(ret[0], person);
 /// ```
-pub fn select_as<T: serde::de::DeserializeOwned>(json_str: &str, path: &str) -> Result<Vec<T>, JsonPathError> {
+pub fn select_as<T: serde::de::DeserializeOwned>(
+    json_str: &str,
+    path: &str,
+) -> Result<Vec<T>, JsonPathError> {
     let json = serde_json::from_str(json_str).map_err(|e| JsonPathError::Serde(e.to_string()))?;
-    Selector::new().str_path(path)?.value(&json).select_as()
+    Selector::default().str_path(path)?.value(&json).select_as()
 }
 
 /// Delete(= replace with null) the JSON property using the jsonpath.
@@ -412,9 +413,9 @@ pub fn select_as<T: serde::de::DeserializeOwned>(json_str: &str, path: &str) ->
 /// ]}));
 /// ```
 pub fn delete(value: Value, path: &str) -> Result<Value, JsonPathError> {
-    let mut selector = SelectorMut::new();
-    let ret = selector.str_path(path)?.value(value).delete()?.take().unwrap_or(Value::Null);
-    Ok(ret)
+    let mut selector = SelectorMut::default();
+    let value = selector.str_path(path)?.value(value).delete()?;
+    Ok(value.take().unwrap_or(Value::Null))
 }
 
 /// Select JSON properties using a jsonpath and transform the result and then replace it. via closure that implements `FnMut` you can transform the selected results.
@@ -444,7 +445,7 @@ pub fn delete(value: Value, path: &str) -> Result<Value, JsonPathError> {
 ///         0
 ///     };
 ///
-///     json!(age)
+///     Some(json!(age))
 /// }).unwrap();
 ///
 /// assert_eq!(ret, json!({
@@ -460,9 +461,10 @@ pub fn delete(value: Value, path: &str) -> Result<Value, JsonPathError> {
 /// ]}));
 /// ```
 pub fn replace_with<F>(value: Value, path: &str, fun: &mut F) -> Result<Value, JsonPathError>
-    where F: FnMut(&Value) -> Value
+where
+    F: FnMut(Value) -> Option<Value>,
 {
-    let mut selector = SelectorMut::new();
-    let ret = selector.str_path(path)?.value(value).replace_with(fun)?.take().unwrap_or(Value::Null);
-    Ok(ret)
-}
+    let mut selector = SelectorMut::default();
+    let value = selector.str_path(path)?.value(value).replace_with(fun)?;
+    Ok(value.take().unwrap_or(Value::Null))
+}

src/parser/parser.rs

@@ -1,726 +0,0 @@
-use super::tokenizer::*;
-
-const DUMMY: usize = 0;
-
-type ParseResult<T> = Result<T, String>;
-
-mod utils {
-    pub fn string_to_isize<F>(string: &String, msg_handler: F) -> Result<isize, String>
-        where F: Fn() -> String {
-        match string.as_str().parse::<isize>() {
-            Ok(n) => Ok(n),
-            _ => Err(msg_handler())
-        }
-    }
-
-    pub fn string_to_f64<F>(string: &String, msg_handler: F) -> Result<f64, String>
-        where F: Fn() -> String {
-        match string.as_str().parse::<f64>() {
-            Ok(n) => Ok(n),
-            _ => Err(msg_handler())
-        }
-    }
-}
-
-#[derive(Debug, PartialEq, Clone)]
-pub enum ParseToken {
-    // '$'
-    Absolute,
-    // '@'
-    Relative,
-    // '.'
-    In,
-    // '..'
-    Leaves,
-    // '*'
-    All,
-
-    Key(String),
-    // []
-    Array,
-    // 메타토큰
-    ArrayEof,
-    // ?( filter )
-    Filter(FilterToken),
-    // 1 : 2
-    Range(Option<isize>, Option<isize>),
-    // 1, 2, 3
-    Union(Vec<isize>),
-
-    Number(f64),
-
-    Bool(bool),
-
-    Eof,
-}
-
-#[derive(Debug, PartialEq, Clone)]
-pub enum FilterToken {
-    Equal,
-    NotEqual,
-    Little,
-    LittleOrEqual,
-    Greater,
-    GreaterOrEqual,
-    And,
-    Or,
-}
-
-#[derive(Debug, Clone)]
-pub struct Node {
-    left: Option<Box<Node>>,
-    right: Option<Box<Node>>,
-    token: ParseToken,
-}
-
-pub struct Parser;
-
-impl Parser {
-    pub fn compile(input: &str) -> ParseResult<Node> {
-        let mut tokenizer = TokenReader::new(input);
-        Ok(Self::json_path(&mut tokenizer)?)
-    }
-
-    fn json_path(tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#json_path");
-        match tokenizer.next_token() {
-            Ok(Token::Absolute(_)) => {
-                let node = Self::node(ParseToken::Absolute);
-                Self::paths(node, tokenizer)
-            }
-            _ => {
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-
-    fn paths(prev: Node, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#paths");
-        match tokenizer.peek_token() {
-            Ok(Token::Dot(_)) => {
-                Self::eat_token(tokenizer);
-                Self::paths_dot(prev, tokenizer)
-            }
-            Ok(Token::OpenArray(_)) => {
-                Self::eat_token(tokenizer);
-                Self::eat_whitespace(tokenizer);
-                let node = Self::array(prev, tokenizer)?;
-                Self::paths(node, tokenizer)
-            }
-            _ => {
-                Ok(prev)
-            }
-        }
-    }
-
-    fn paths_dot(prev: Node, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#paths_dot");
-        let node = Self::path(prev, tokenizer)?;
-        match tokenizer.peek_token() {
-            Ok(Token::Equal(_))
-            | Ok(Token::NotEqual(_))
-            | Ok(Token::Little(_))
-            | Ok(Token::LittleOrEqual(_))
-            | Ok(Token::Greater(_))
-            | Ok(Token::GreaterOrEqual(_))
-            | Ok(Token::And(_))
-            | Ok(Token::Or(_)) => {
-                Ok(node)
-            }
-            _ => {
-                Self::paths(node, tokenizer)
-            }
-        }
-    }
-
-    fn path(prev: Node, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#path");
-        match tokenizer.peek_token() {
-            Ok(Token::Dot(_)) => {
-                Self::path_leaves(prev, tokenizer)
-            }
-            Ok(Token::Asterisk(_)) => {
-                Self::path_in_all(prev, tokenizer)
-            }
-            Ok(Token::Key(_, _)) => {
-                Self::path_in_key(prev, tokenizer)
-            }
-            Ok(Token::OpenArray(_)) => {
-                Self::eat_token(tokenizer);
-                Self::array(prev, tokenizer)
-            }
-            _ => {
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-
-    fn path_leaves(prev: Node, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#path_leaves");
-        Self::eat_token(tokenizer);
-        match tokenizer.peek_token() {
-            Ok(Token::Asterisk(_)) => {
-                Self::path_leaves_all(prev, tokenizer)
-            }
-            Ok(Token::OpenArray(_)) => {
-                let mut leaves_node = Self::node(ParseToken::Leaves);
-                leaves_node.left = Some(Box::new(prev));
-                Ok(Self::paths(leaves_node, tokenizer)?)
-            }
-            _ => {
-                Self::path_leaves_key(prev, tokenizer)
-            }
-        }
-    }
-
-    fn path_leaves_key(prev: Node, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#path_leaves_key");
-        Ok(Node {
-            token: ParseToken::Leaves,
-            left: Some(Box::new(prev)),
-            right: Some(Box::new(Self::key(tokenizer)?)),
-        })
-    }
-
-    fn path_leaves_all(prev: Node, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#path_leaves_all");
-        Self::eat_token(tokenizer);
-        Ok(Node {
-            token: ParseToken::Leaves,
-            left: Some(Box::new(prev)),
-            right: Some(Box::new(Self::node(ParseToken::All))),
-        })
-    }
-
-    fn path_in_all(prev: Node, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#path_in_all");
-        Self::eat_token(tokenizer);
-        Ok(Node {
-            token: ParseToken::In,
-            left: Some(Box::new(prev)),
-            right: Some(Box::new(Self::node(ParseToken::All))),
-        })
-    }
-
-    fn path_in_key(prev: Node, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#path_in_key");
-        Ok(Node {
-            token: ParseToken::In,
-            left: Some(Box::new(prev)),
-            right: Some(Box::new(Self::key(tokenizer)?)),
-        })
-    }
-
-    fn key(tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#key");
-        match tokenizer.next_token() {
-            Ok(Token::Key(_, v)) => {
-                Ok(Self::node(ParseToken::Key(v)))
-            }
-            _ => {
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-
-    fn boolean(tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#boolean");
-        match tokenizer.next_token() {
-            Ok(Token::Key(_, v)) => {
-                Ok(Self::node(ParseToken::Bool(v.eq_ignore_ascii_case("true"))))
-            }
-            _ => {
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-
-    fn array_quota_value(tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#array_quota_value");
-        match tokenizer.next_token() {
-            Ok(Token::SingleQuoted(_, val))
-            | Ok(Token::DoubleQuoted(_, val)) => {
-                Ok(Self::node(ParseToken::Key(val)))
-            }
-            Err(TokenError::Eof) => {
-                Ok(Self::node(ParseToken::Eof))
-            }
-            _ => {
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-
-    fn array_start(prev: Node, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#array_start");
-        match tokenizer.peek_token() {
-            Ok(Token::Question(_)) => {
-                Self::eat_token(tokenizer);
-                Ok(Node {
-                    token: ParseToken::Array,
-                    left: Some(Box::new(prev)),
-                    right: Some(Box::new(Self::filter(tokenizer)?)),
-                })
-            }
-            Ok(Token::Asterisk(_)) => {
-                Self::eat_token(tokenizer);
-                Ok(Node {
-                    token: ParseToken::Array,
-                    left: Some(Box::new(prev)),
-                    right: Some(Box::new(Self::node(ParseToken::All))),
-                })
-            }
-            _ => {
-                Ok(Node {
-                    token: ParseToken::Array,
-                    left: Some(Box::new(prev)),
-                    right: Some(Box::new(Self::array_value(tokenizer)?)),
-                })
-            }
-        }
-    }
-
-    fn array(prev: Node, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#array");
-        let ret = Self::array_start(prev, tokenizer)?;
-        Self::eat_whitespace(tokenizer);
-        Self::close_token(ret, Token::CloseArray(DUMMY), tokenizer)
-    }
-
-    fn array_value_key(tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#array_value_key");
-        match tokenizer.next_token() {
-            Ok(Token::Key(pos, ref val)) => {
-                let digit = utils::string_to_isize(val, || tokenizer.err_msg_with_pos(pos))?;
-                Self::eat_whitespace(tokenizer);
-
-                match tokenizer.peek_token() {
-                    Ok(Token::Comma(_)) => {
-                        Self::union(digit, tokenizer)
-                    }
-                    Ok(Token::Split(_)) => {
-                        Self::range_from(digit, tokenizer)
-                    }
-                    _ => {
-                        Ok(Self::node(ParseToken::Number(digit as f64)))
-                    }
-                }
-            }
-            _ => {
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-
-
-    fn array_value(tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#array_value");
-        match tokenizer.peek_token() {
-            Ok(Token::Key(_, _)) => {
-                Self::array_value_key(tokenizer)
-            }
-            Ok(Token::Split(_)) => {
-                Self::eat_token(tokenizer);
-                Self::range_to(tokenizer)
-            }
-            Ok(Token::DoubleQuoted(_, _))
-            | Ok(Token::SingleQuoted(_, _)) => {
-                Self::array_quota_value(tokenizer)
-            }
-            Err(TokenError::Eof) => {
-                Ok(Self::node(ParseToken::Eof))
-            }
-            _ => {
-                Self::eat_token(tokenizer);
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-
-    fn union(num: isize, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#union");
-        let mut values = vec![num];
-        while match tokenizer.peek_token() {
-            Ok(Token::Comma(_)) => true,
-            _ => false
-        } {
-            Self::eat_token(tokenizer);
-            Self::eat_whitespace(tokenizer);
-            match tokenizer.next_token() {
-                Ok(Token::Key(pos, ref val)) => {
-                    let digit = utils::string_to_isize(val, || tokenizer.err_msg_with_pos(pos))?;
-                    values.push(digit);
-                }
-                _ => {
-                    return Err(tokenizer.err_msg());
-                }
-            }
-        }
-        Ok(Self::node(ParseToken::Union(values)))
-    }
-
-    fn range_from(num: isize, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#range_from");
-        Self::eat_token(tokenizer);
-        Self::eat_whitespace(tokenizer);
-        match tokenizer.peek_token() {
-            Ok(Token::Key(_, _)) => {
-                Self::range(num, tokenizer)
-            }
-            _ => {
-                Ok(Self::node(ParseToken::Range(Some(num), None)))
-            }
-        }
-    }
-
-    fn range_to(tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#range_to");
-        match tokenizer.next_token() {
-            Ok(Token::Key(pos, ref val)) => {
-                let digit = utils::string_to_isize(val, || tokenizer.err_msg_with_pos(pos))?;
-                Ok(Self::node(ParseToken::Range(None, Some(digit))))
-            }
-            _ => {
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-
-    fn range(num: isize, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#range");
-        match tokenizer.next_token() {
-            Ok(Token::Key(pos, ref val)) => {
-                let digit = utils::string_to_isize(val, || tokenizer.err_msg_with_pos(pos))?;
-                Ok(Self::node(ParseToken::Range(Some(num), Some(digit))))
-            }
-            _ => {
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-
-    fn filter(tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#filter");
-        match tokenizer.next_token() {
-            Ok(Token::OpenParenthesis(_)) => {
-                let ret = Self::exprs(tokenizer)?;
-                Self::eat_whitespace(tokenizer);
-                Self::close_token(ret, Token::CloseParenthesis(DUMMY), tokenizer)
-            }
-            Err(TokenError::Eof) => {
-                Ok(Self::node(ParseToken::Eof))
-            }
-            _ => {
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-
-    fn exprs(tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        Self::eat_whitespace(tokenizer);
-        debug!("#exprs");
-        let node = match tokenizer.peek_token() {
-            Ok(Token::OpenParenthesis(_)) => {
-                Self::eat_token(tokenizer);
-                trace!("\t-exprs - open_parenthesis");
-                let ret = Self::exprs(tokenizer)?;
-                Self::eat_whitespace(tokenizer);
-                Self::close_token(ret, Token::CloseParenthesis(DUMMY), tokenizer)?
-            }
-            _ => {
-                trace!("\t-exprs - else");
-                Self::expr(tokenizer)?
-            }
-        };
-        Self::eat_whitespace(tokenizer);
-        Self::condition_expr(node, tokenizer)
-    }
-
-    fn condition_expr(prev: Node, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#condition_expr");
-        match tokenizer.peek_token() {
-            Ok(Token::And(_)) => {
-                Self::eat_token(tokenizer);
-                Ok(Node {
-                    token: ParseToken::Filter(FilterToken::And),
-                    left: Some(Box::new(prev)),
-                    right: Some(Box::new(Self::exprs(tokenizer)?)),
-                })
-            }
-            Ok(Token::Or(_)) => {
-                Self::eat_token(tokenizer);
-                Ok(Node {
-                    token: ParseToken::Filter(FilterToken::Or),
-                    left: Some(Box::new(prev)),
-                    right: Some(Box::new(Self::exprs(tokenizer)?)),
-                })
-            }
-            _ => {
-                Ok(prev)
-            }
-        }
-    }
-
-    fn expr(tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#expr");
-
-        let has_prop_candidate = match tokenizer.peek_token() {
-            Ok(Token::At(_)) => true,
-            _ => false
-        };
-
-        let node = Self::term(tokenizer)?;
-        Self::eat_whitespace(tokenizer);
-
-        if match tokenizer.peek_token() {
-            Ok(Token::Equal(_))
-            | Ok(Token::NotEqual(_))
-            | Ok(Token::Little(_))
-            | Ok(Token::LittleOrEqual(_))
-            | Ok(Token::Greater(_))
-            | Ok(Token::GreaterOrEqual(_)) => true,
-            _ => false
-        } {
-            Self::op(node, tokenizer)
-        } else if has_prop_candidate {
-            Ok(node)
-        } else {
-            return Err(tokenizer.err_msg());
-        }
-    }
-
-    fn term_num(tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#term_num");
-        match tokenizer.next_token() {
-            Ok(Token::Key(pos, val)) => {
-                match tokenizer.peek_token() {
-                    Ok(Token::Dot(_)) => {
-                        Self::term_num_float(val.as_str(), tokenizer)
-                    }
-                    _ => {
-                        let number = utils::string_to_f64(&val, || tokenizer.err_msg_with_pos(pos))?;
-                        Ok(Self::node(ParseToken::Number(number)))
-                    }
-                }
-            }
-            Err(TokenError::Eof) => {
-                Ok(Self::node(ParseToken::Eof))
-            }
-            _ => {
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-
-    fn term_num_float(mut num: &str, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#term_num_float");
-        Self::eat_token(tokenizer);
-        match tokenizer.next_token() {
-            Ok(Token::Key(pos, frac)) => {
-                let mut f = String::new();
-                f.push_str(&mut num);
-                f.push('.');
-                f.push_str(frac.as_str());
-                let number = utils::string_to_f64(&f, || tokenizer.err_msg_with_pos(pos))?;
-                Ok(Self::node(ParseToken::Number(number)))
-            }
-            _ => {
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-
-    fn peek_key(tokenizer: &mut TokenReader) -> Option<String> {
-        if let Ok(Token::Key(_, k)) = tokenizer.peek_token() {
-            Some(k.clone())
-        } else {
-            None
-        }
-    }
-
-    fn term(tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#term");
-
-        if tokenizer.peek_is(AT) {
-            Self::eat_token(tokenizer);
-            let node = Self::node(ParseToken::Relative);
-
-            return match tokenizer.peek_token() {
-                Ok(Token::Whitespace(_, _)) => {
-                    Self::eat_whitespace(tokenizer);
-                    Ok(node)
-                }
-                _ => {
-                    Self::paths(node, tokenizer)
-                }
-            };
-        }
-
-        if tokenizer.peek_is(ABSOLUTE) {
-            return Self::json_path(tokenizer);
-        }
-
-        if tokenizer.peek_is(DOUBLE_QUOTA) || tokenizer.peek_is(SINGLE_QUOTA) {
-            return Self::array_quota_value(tokenizer);
-        }
-
-        if tokenizer.peek_is(KEY) {
-            return match Self::peek_key(tokenizer) {
-                Some(key) => match key.chars().next() {
-                    Some(ch) => match ch {
-                        '-' | '0'...'9' => Self::term_num(tokenizer),
-                        _ => Self::boolean(tokenizer)
-                    }
-                    _ => Err(tokenizer.err_msg())
-                },
-                _ => Err(tokenizer.err_msg())
-            };
-        }
-
-        return Err(tokenizer.err_msg());
-    }
-
-    fn op(prev: Node, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#op");
-        let token = match tokenizer.next_token() {
-            Ok(Token::Equal(_)) => {
-                ParseToken::Filter(FilterToken::Equal)
-            }
-            Ok(Token::NotEqual(_)) => {
-                ParseToken::Filter(FilterToken::NotEqual)
-            }
-            Ok(Token::Little(_)) => {
-                ParseToken::Filter(FilterToken::Little)
-            }
-            Ok(Token::LittleOrEqual(_)) => {
-                ParseToken::Filter(FilterToken::LittleOrEqual)
-            }
-            Ok(Token::Greater(_)) => {
-                ParseToken::Filter(FilterToken::Greater)
-            }
-            Ok(Token::GreaterOrEqual(_)) => {
-                ParseToken::Filter(FilterToken::GreaterOrEqual)
-            }
-            Err(TokenError::Eof) => {
-                ParseToken::Eof
-            }
-            _ => {
-                return Err(tokenizer.err_msg());
-            }
-        };
-
-        Self::eat_whitespace(tokenizer);
-
-        Ok(Node {
-            token,
-            left: Some(Box::new(prev)),
-            right: Some(Box::new(Self::term(tokenizer)?)),
-        })
-    }
-
-    fn eat_whitespace(tokenizer: &mut TokenReader) {
-        while let Ok(Token::Whitespace(_, _)) = tokenizer.peek_token() {
-            let _ = tokenizer.next_token();
-        }
-    }
-
-    fn eat_token(tokenizer: &mut TokenReader) {
-        let _ = tokenizer.next_token();
-    }
-
-    fn node(token: ParseToken) -> Node {
-        Node { left: None, right: None, token }
-    }
-
-    fn close_token(ret: Node, token: Token, tokenizer: &mut TokenReader) -> ParseResult<Node> {
-        debug!("#close_token");
-        match tokenizer.next_token() {
-            Ok(ref t) if t.partial_eq(token) => {
-                Ok(ret)
-            }
-            _ => {
-                Err(tokenizer.err_msg())
-            }
-        }
-    }
-}
-
-pub trait NodeVisitor {
-    fn visit(&mut self, node: &Node) {
-        match &node.token {
-            ParseToken::Absolute
-            | ParseToken::Relative
-            | ParseToken::All
-            | ParseToken::Key(_)
-            | ParseToken::Range(_, _)
-            | ParseToken::Union(_)
-            | ParseToken::Number(_)
-            | ParseToken::Bool(_) => {
-                self.visit_token(&node.token);
-            }
-            ParseToken::In
-            | ParseToken::Leaves => {
-                match &node.left {
-                    Some(n) => self.visit(&*n),
-                    _ => {}
-                }
-
-                self.visit_token(&node.token);
-
-                match &node.right {
-                    Some(n) => self.visit(&*n),
-                    _ => {}
-                }
-            }
-            ParseToken::Array => {
-                match &node.left {
-                    Some(n) => self.visit(&*n),
-                    _ => {}
-                }
-
-                self.visit_token(&node.token);
-
-                match &node.right {
-                    Some(n) => self.visit(&*n),
-                    _ => {}
-                }
-                self.visit_token(&ParseToken::ArrayEof);
-            }
-            ParseToken::Filter(FilterToken::And)
-            | ParseToken::Filter(FilterToken::Or) => {
-                match &node.left {
-                    Some(n) => self.visit(&*n),
-                    _ => {}
-                }
-
-                match &node.right {
-                    Some(n) => self.visit(&*n),
-                    _ => {}
-                }
-
-                self.visit_token(&node.token);
-            }
-            ParseToken::Filter(_) => {
-                match &node.left {
-                    Some(n) => self.visit(&*n),
-                    _ => {}
-                }
-
-                self.end_term();
-
-                match &node.right {
-                    Some(n) => self.visit(&*n),
-                    _ => {}
-                }
-
-                self.end_term();
-
-                self.visit_token(&node.token);
-            }
-            _ => {}
-        }
-    }
-
-    fn visit_token(&mut self, token: &ParseToken);
-    fn end_term(&mut self) {}
-}

src/parser/path_reader.rs

@@ -12,10 +12,7 @@ pub struct PathReader<'a> {
 
 impl<'a> PathReader<'a> {
     pub fn new(input: &'a str) -> Self {
-        PathReader {
-            input,
-            pos: 0,
-        }
+        PathReader { input, pos: 0 }
     }
 
     pub fn peek_char(&self) -> Result<(usize, char), ReaderError> {
@@ -24,8 +21,8 @@ impl<'a> PathReader<'a> {
     }
 
     pub fn take_while<F>(&mut self, fun: F) -> Result<(usize, String), ReaderError>
-        where
-            F: Fn(&char) -> bool
+    where
+        F: Fn(&char) -> bool,
     {
         let mut char_len: usize = 0;
         let mut ret = String::new();
@@ -53,4 +50,4 @@ impl<'a> PathReader<'a> {
     pub fn current_pos(&self) -> usize {
         self.pos
     }
-}
+}

src/parser/tokenizer.rs

@@ -1,31 +1,30 @@
-use std::io::Write;
 use std::result::Result;
 
 use super::path_reader::{PathReader, ReaderError};
 
-pub const ABSOLUTE: &'static str = "$";
-pub const DOT: &'static str = ".";
-pub const AT: &'static str = "@";
-pub const OPEN_ARRAY: &'static str = "[";
-pub const CLOSE_ARRAY: &'static str = "]";
-pub const ASTERISK: &'static str = "*";
-pub const QUESTION: &'static str = "?";
-pub const COMMA: &'static str = ",";
-pub const SPLIT: &'static str = ":";
-pub const OPEN_PARENTHESIS: &'static str = "(";
-pub const CLOSE_PARENTHESIS: &'static str = ")";
-pub const KEY: &'static str = "Key";
-pub const DOUBLE_QUOTA: &'static str = "\"";
-pub const SINGLE_QUOTA: &'static str = "'";
-pub const EQUAL: &'static str = "==";
-pub const GREATER_OR_EQUAL: &'static str = ">=";
-pub const GREATER: &'static str = ">";
-pub const LITTLE: &'static str = "<";
-pub const LITTLE_OR_EQUAL: &'static str = "<=";
-pub const NOT_EQUAL: &'static str = "!=";
-pub const AND: &'static str = "&&";
-pub const OR: &'static str = "||";
-pub const WHITESPACE: &'static str = " ";
+pub const ABSOLUTE: &str = "$";
+pub const DOT: &str = ".";
+pub const AT: &str = "@";
+pub const OPEN_ARRAY: &str = "[";
+pub const CLOSE_ARRAY: &str = "]";
+pub const ASTERISK: &str = "*";
+pub const QUESTION: &str = "?";
+pub const COMMA: &str = ",";
+pub const SPLIT: &str = ":";
+pub const OPEN_PARENTHESIS: &str = "(";
+pub const CLOSE_PARENTHESIS: &str = ")";
+pub const KEY: &str = "Key";
+pub const DOUBLE_QUOTE: &str = "\"";
+pub const SINGLE_QUOTE: &str = "'";
+pub const EQUAL: &str = "==";
+pub const GREATER_OR_EQUAL: &str = ">=";
+pub const GREATER: &str = ">";
+pub const LITTLE: &str = "<";
+pub const LITTLE_OR_EQUAL: &str = "<=";
+pub const NOT_EQUAL: &str = "!=";
+pub const AND: &str = "&&";
+pub const OR: &str = "||";
+pub const WHITESPACE: &str = " ";
 
 const CH_DOLLA: char = '$';
 const CH_DOT: char = '.';
@@ -44,8 +43,8 @@ const CH_PIPE: char = '|';
 const CH_LITTLE: char = '<';
 const CH_GREATER: char = '>';
 const CH_EXCLAMATION: char = '!';
-const CH_SINGLE_QUOTA: char = '\'';
-const CH_DOUBLE_QUOTA: char = '"';
+const CH_SINGLE_QUOTE: char = '\'';
+const CH_DOUBLE_QUOTE: char = '"';
 
 #[derive(Debug, Clone, PartialEq)]
 pub enum TokenError {
@@ -55,7 +54,7 @@ pub enum TokenError {
 
 fn to_token_error(read_err: ReaderError) -> TokenError {
     match read_err {
-        ReaderError::Eof => TokenError::Eof
+        ReaderError::Eof => TokenError::Eof,
     }
 }
 
@@ -95,6 +94,7 @@ impl Token {
         self.to_simple() == str_token
     }
 
+    #[cfg_attr(tarpaulin, skip)]
     fn to_simple(&self) -> &'static str {
         match self {
             Token::Absolute(_) => ABSOLUTE,
@@ -109,8 +109,8 @@ impl Token {
             Token::OpenParenthesis(_) => OPEN_PARENTHESIS,
             Token::CloseParenthesis(_) => CLOSE_PARENTHESIS,
             Token::Key(_, _) => KEY,
-            Token::DoubleQuoted(_, _) => DOUBLE_QUOTA,
-            Token::SingleQuoted(_, _) => SINGLE_QUOTA,
+            Token::DoubleQuoted(_, _) => DOUBLE_QUOTE,
+            Token::SingleQuoted(_, _) => SINGLE_QUOTE,
             Token::Equal(_) => EQUAL,
             Token::GreaterOrEqual(_) => GREATER_OR_EQUAL,
             Token::Greater(_) => GREATER,
@@ -119,7 +119,7 @@ impl Token {
             Token::NotEqual(_) => NOT_EQUAL,
             Token::And(_) => AND,
             Token::Or(_) => OR,
-            Token::Whitespace(_, _) => WHITESPACE
+            Token::Whitespace(_, _) => WHITESPACE,
         }
     }
 }
@@ -137,7 +137,7 @@ fn simple_matched_token(ch: char, pos: usize) -> Option<Token> {
         CH_QUESTION => Some(Token::Question(pos)),
         CH_COMMA => Some(Token::Comma(pos)),
         CH_SEMICOLON => Some(Token::Split(pos)),
-        _ => None
+        _ => None,
     }
 }
 
@@ -147,20 +147,42 @@ pub struct Tokenizer<'a> {
 
 impl<'a> Tokenizer<'a> {
     pub fn new(input: &'a str) -> Self {
+        trace!("input: {}", input);
         Tokenizer {
             input: PathReader::new(input),
         }
     }
 
-    fn single_quota(&mut self, pos: usize, ch: char) -> Result<Token, TokenError> {
-        let (_, val) = self.input.take_while(|c| *c != ch).map_err(to_token_error)?;
-        self.input.next_char().map_err(to_token_error)?;
+    fn quote(&mut self, ch: char) -> Result<String, TokenError> {
+        let (_, mut val) = self
+            .input
+            .take_while(|c| *c != ch)
+            .map_err(to_token_error)?;
+
+        if let Some('\\') = val.chars().last() {
+            self.input.next_char().map_err(to_token_error)?;
+            let _ = val.pop();
+            let (_, val_remain) = self
+                .input
+                .take_while(|c| *c != ch)
+                .map_err(to_token_error)?;
+            self.input.next_char().map_err(to_token_error)?;
+            val.push(ch);
+            val.push_str(val_remain.as_str());
+        } else {
+            self.input.next_char().map_err(to_token_error)?;
+        }
+
+        Ok(val)
+    }
+
+    fn single_quote(&mut self, pos: usize, ch: char) -> Result<Token, TokenError> {
+        let val = self.quote(ch)?;
         Ok(Token::SingleQuoted(pos, val))
     }
 
-    fn double_quota(&mut self, pos: usize, ch: char) -> Result<Token, TokenError> {
-        let (_, val) = self.input.take_while(|c| *c != ch).map_err(to_token_error)?;
-        self.input.next_char().map_err(to_token_error)?;
+    fn double_quote(&mut self, pos: usize, ch: char) -> Result<Token, TokenError> {
+        let val = self.quote(ch)?;
         Ok(Token::DoubleQuoted(pos, val))
     }
 
@@ -171,7 +193,7 @@ impl<'a> Tokenizer<'a> {
                 self.input.next_char().map_err(to_token_error)?;
                 Ok(Token::Equal(pos))
             }
-            _ => Err(TokenError::Position(pos))
+            _ => Err(TokenError::Position(pos)),
         }
     }
 
@@ -182,7 +204,7 @@ impl<'a> Tokenizer<'a> {
                 self.input.next_char().map_err(to_token_error)?;
                 Ok(Token::NotEqual(pos))
             }
-            _ => Err(TokenError::Position(pos))
+            _ => Err(TokenError::Position(pos)),
         }
     }
 
@@ -215,7 +237,7 @@ impl<'a> Tokenizer<'a> {
                 let _ = self.input.next_char().map_err(to_token_error);
                 Ok(Token::And(pos))
             }
-            _ => Err(TokenError::Position(pos))
+            _ => Err(TokenError::Position(pos)),
         }
     }
 
@@ -226,27 +248,31 @@ impl<'a> Tokenizer<'a> {
                 self.input.next_char().map_err(to_token_error)?;
                 Ok(Token::Or(pos))
             }
-            _ => Err(TokenError::Position(pos))
+            _ => Err(TokenError::Position(pos)),
         }
     }
 
     fn whitespace(&mut self, pos: usize, _: char) -> Result<Token, TokenError> {
-        let (_, vec) = self.input.take_while(|c| c.is_whitespace()).map_err(to_token_error)?;
+        let (_, vec) = self
+            .input
+            .take_while(|c| c.is_whitespace())
+            .map_err(to_token_error)?;
         Ok(Token::Whitespace(pos, vec.len()))
     }
 
     fn other(&mut self, pos: usize, ch: char) -> Result<Token, TokenError> {
-        let fun = |c: &char| {
-            match simple_matched_token(*c, pos) {
-                Some(_) => false,
-                _ if c == &CH_LITTLE
-                    || c == &CH_GREATER
-                    || c == &CH_EQUAL
-                    || c == &CH_AMPERSAND
-                    || c == &CH_PIPE
-                    || c == &CH_EXCLAMATION => false,
-                _ => !c.is_whitespace()
+        let fun = |c: &char| match simple_matched_token(*c, pos) {
+            Some(_) => false,
+            _ if c == &CH_LITTLE
+                || c == &CH_GREATER
+                || c == &CH_EQUAL
+                || c == &CH_AMPERSAND
+                || c == &CH_PIPE
+                || c == &CH_EXCLAMATION =>
+            {
+                false
             }
+            _ => !c.is_whitespace(),
         };
         let (_, mut vec) = self.input.take_while(fun).map_err(to_token_error)?;
         vec.insert(0, ch);
@@ -257,20 +283,18 @@ impl<'a> Tokenizer<'a> {
         let (pos, ch) = self.input.next_char().map_err(to_token_error)?;
         match simple_matched_token(ch, pos) {
             Some(t) => Ok(t),
-            None => {
-                match ch {
-                    CH_SINGLE_QUOTA => self.single_quota(pos, ch),
-                    CH_DOUBLE_QUOTA => self.double_quota(pos, ch),
-                    CH_EQUAL => self.equal(pos, ch),
-                    CH_GREATER => self.greater(pos, ch),
-                    CH_LITTLE => self.little(pos, ch),
-                    CH_AMPERSAND => self.and(pos, ch),
-                    CH_PIPE => self.or(pos, ch),
-                    CH_EXCLAMATION => self.not_equal(pos, ch),
-                    _ if ch.is_whitespace() => self.whitespace(pos, ch),
-                    _ => self.other(pos, ch),
-                }
-            }
+            None => match ch {
+                CH_SINGLE_QUOTE => self.single_quote(pos, ch),
+                CH_DOUBLE_QUOTE => self.double_quote(pos, ch),
+                CH_EQUAL => self.equal(pos, ch),
+                CH_GREATER => self.greater(pos, ch),
+                CH_LITTLE => self.little(pos, ch),
+                CH_AMPERSAND => self.and(pos, ch),
+                CH_PIPE => self.or(pos, ch),
+                CH_EXCLAMATION => self.not_equal(pos, ch),
+                _ if ch.is_whitespace() => self.whitespace(pos, ch),
+                _ => self.other(pos, ch),
+            },
         }
     }
 
@@ -298,7 +322,7 @@ impl<'a> TokenReader<'a> {
                 }
                 Err(e) => {
                     return TokenReader {
-                        origin_input: input.clone(),
+                        origin_input: input,
                         err: e,
                         err_pos: tokenizer.current_pos(),
                         tokens,
@@ -312,7 +336,7 @@ impl<'a> TokenReader<'a> {
     pub fn peek_is(&self, simple_token: &str) -> bool {
         match self.peek_token() {
             Ok(t) => t.simple_eq(simple_token),
-            _ => false
+            _ => false,
         }
     }
 
@@ -344,23 +368,13 @@ impl<'a> TokenReader<'a> {
     }
 
     pub fn err_msg_with_pos(&self, pos: usize) -> String {
-        let mut w = Vec::new();
-        writeln!(&mut w, "{}", self.origin_input).unwrap();
-        writeln!(&mut w, "{}", "^".repeat(pos)).unwrap();
-        match std::str::from_utf8(&w[..]) {
-            Ok(s) => s.to_owned(),
-            Err(_) => panic!("Invalid UTF-8")
-        }
+        format!("{}\n{}", self.origin_input, "^".repeat(pos))
     }
 
     pub fn err_msg(&self) -> String {
         match self.curr_pos {
-            Some(pos) => {
-                self.err_msg_with_pos(pos)
-            }
-            _ => {
-                self.err_msg_with_pos(self.err_pos)
-            }
+            Some(pos) => self.err_msg_with_pos(pos),
+            _ => self.err_msg_with_pos(self.err_pos),
         }
     }
-}
+}

tests/common.rs

@@ -30,16 +30,27 @@ pub fn read_contents(path: &str) -> String {
 }
 
 #[allow(dead_code)]
-pub fn select_and_then_compare<'a>(path: &str, json: Value, target: Value) {
-    let mut s = Selector::new();
-    let _ = s.str_path(path);
-    let _ = s.value(&json);
-    let result = serde_json::to_value(s.select().unwrap()).unwrap();
-    assert_eq!(result, target, "{}", path);
+pub fn select_and_then_compare(path: &str, json: Value, target: Value) {
+    let mut selector = Selector::default();
+    let result = selector
+        .str_path(path)
+        .unwrap()
+        .value(&json)
+        .select_as::<Value>()
+        .unwrap();
+    assert_eq!(
+        result,
+        match target {
+            Value::Array(vec) => vec,
+            _ => panic!("Give me the Array!"),
+        },
+        "{}",
+        path
+    );
 }
 
 #[allow(dead_code)]
-pub fn compare_result<'a>(result: Vec<&Value>, target: Value) {
+pub fn compare_result(result: Vec<&Value>, target: Value) {
     let result = serde_json::to_value(result).unwrap();
     assert_eq!(result, target);
 }

tests/lib.rs

@@ -7,50 +7,77 @@ use serde::Deserialize;
 use serde_json::Value;
 
 use common::{compare_result, read_contents, read_json, setup};
+use jsonpath::JsonPathError;
 
 mod common;
 
 #[test]
 fn compile() {
-    setup();
-
-    let mut template = jsonpath::compile("$..friends[2]");
-    let json_obj = read_json("./benches/data_obj.json");
-    let json = template(&json_obj).unwrap();
-    let ret = json!([
+    let compile_object = |path| {
+        let mut template = jsonpath::compile(path);
+        let json_obj = read_json("./benchmark/data_obj.json");
+        let json = template(&json_obj).unwrap();
+        let ret = json!([
             {"id": 2,"name": "Gray Berry"},
             {"id": 2,"name": "Gray Berry"}
         ]);
-    compare_result(json, ret);
+        compare_result(json, ret);
+    };
 
-    let json_obj = read_json("./benches/data_array.json");
-    let json = template(&json_obj).unwrap();
-    let ret = json!([
+    let compile_array = |path| {
+        let mut template = jsonpath::compile(path);
+        let json_obj = read_json("./benchmark/data_array.json");
+        let json = template(&json_obj).unwrap();
+        let ret = json!([
             {"id": 2,"name": "Gray Berry"},
             {"id": 2,"name": "Rosetta Erickson"}
         ]);
-    compare_result(json, ret);
+        compare_result(json, ret);
+    };
+
+    fn compile_error() {
+        let mut template = jsonpath::compile("$[");
+        assert!(template(&Value::Null).is_err());
+    }
+
+    setup();
+
+    compile_object("$..friends[2]");
+    compile_array("$..friends[2]");
+    compile_error();
 }
 
 #[test]
 fn selector() {
     setup();
 
-    let json_obj = read_json("./benches/data_obj.json");
-    let mut reader = jsonpath::selector(&json_obj);
-    let json = reader("$..friends[2]").unwrap();
-    let ret = json!([
+    fn select<'a, F>(selector: &mut F, path: &'a str, target: Value)
+    where
+        F: FnMut(&'a str) -> Result<Vec<&Value>, JsonPathError>,
+    {
+        let json = selector(path).unwrap();
+        compare_result(json, target);
+    };
+
+    let json_obj = read_json("./benchmark/data_obj.json");
+    let mut selector = jsonpath::selector(&json_obj);
+
+    select(
+        &mut selector,
+        "$..friends[2]",
+        json!([
             {"id": 2,"name": "Gray Berry"},
             {"id": 2,"name": "Gray Berry"}
-        ]);
-    compare_result(json, ret);
-
-    let json = reader("$..friends[0]").unwrap();
-    let ret = json!([
+        ]),
+    );
+    select(
+        &mut selector,
+        "$..friends[0]",
+        json!([
             {"id": 0},
             {"id": 0,"name": "Millicent Norman"}
-        ]);
-    compare_result(json, ret);
+        ]),
+    );
 }
 
 #[test]
@@ -61,49 +88,70 @@ fn selector_as() {
         name: Option<String>,
     }
 
-    let json_obj = read_json("./benches/data_obj.json");
+    fn select<'a, F>(selector: &mut F, path: &'a str, target: Vec<Friend>)
+    where
+        F: FnMut(&'a str) -> Result<Vec<Friend>, JsonPathError>,
+    {
+        let json = selector(path).unwrap();
+        assert_eq!(json, target);
+    };
+
+    let json_obj = read_json("./benchmark/data_obj.json");
     let mut selector = jsonpath::selector_as::<Friend>(&json_obj);
-    let json = selector("$..friends[2]").unwrap();
 
-    let ret = vec!(
-        Friend { id: 2, name: Some("Gray Berry".to_string()) },
-        Friend { id: 2, name: Some("Gray Berry".to_string()) },
+    select(
+        &mut selector,
+        "$..friends[2]",
+        vec![
+            Friend {
+                id: 2,
+                name: Some("Gray Berry".to_string()),
+            },
+            Friend {
+                id: 2,
+                name: Some("Gray Berry".to_string()),
+            },
+        ],
     );
-    assert_eq!(json, ret);
 
-    let json = selector("$..friends[0]").unwrap();
-    let ret = vec!(
-        Friend { id: 0, name: None },
-        Friend { id: 0, name: Some("Millicent Norman".to_string()) },
+    select(
+        &mut selector,
+        "$..friends[0]",
+        vec![
+            Friend { id: 0, name: None },
+            Friend {
+                id: 0,
+                name: Some("Millicent Norman".to_string()),
+            },
+        ],
     );
-    assert_eq!(json, ret);
 }
 
 #[test]
 fn select() {
-    let json_obj = read_json("./benches/example.json");
+    let json_obj = read_json("./benchmark/example.json");
     let json = jsonpath::select(&json_obj, "$..book[2]").unwrap();
     let ret = json!([{
-            "category" : "fiction",
-            "author" : "Herman Melville",
-            "title" : "Moby Dick",
-            "isbn" : "0-553-21311-3",
-            "price" : 8.99
-        }]);
+        "category" : "fiction",
+        "author" : "Herman Melville",
+        "title" : "Moby Dick",
+        "isbn" : "0-553-21311-3",
+        "price" : 8.99
+    }]);
     compare_result(json, ret);
 }
 
 #[test]
 fn select_str() {
-    let json_str = read_contents("./benches/example.json");
+    let json_str = read_contents("./benchmark/example.json");
     let result_str = jsonpath::select_as_str(&json_str, "$..book[2]").unwrap();
     let ret = json!([{
-            "category" : "fiction",
-            "author" : "Herman Melville",
-            "title" : "Moby Dick",
-            "isbn" : "0-553-21311-3",
-            "price" : 8.99
-        }]);
+        "category" : "fiction",
+        "author" : "Herman Melville",
+        "title" : "Moby Dick",
+        "isbn" : "0-553-21311-3",
+        "price" : 8.99
+    }]);
     let json: Value = serde_json::from_str(&result_str).unwrap();
     assert_eq!(json, ret);
 }
@@ -117,7 +165,8 @@ fn test_to_struct() {
         phones: Vec<String>,
     }
 
-    let ret: Vec<Person> = jsonpath::select_as(r#"
+    let ret: Vec<Person> = jsonpath::select_as(
+        r#"
     {
         "person":
             {
@@ -129,7 +178,10 @@ fn test_to_struct() {
                 ]
             }
     }
-    "#, "$.person").unwrap();
+    "#,
+        "$.person",
+    )
+    .unwrap();
 
     let person = Person {
         name: "Doe John".to_string(),
@@ -138,4 +190,4 @@ fn test_to_struct() {
     };
 
     assert_eq!(vec![person], ret);
-}
+}

tests/mutable.rs

@@ -1,40 +0,0 @@
-extern crate jsonpath_lib as jsonpath;
-#[macro_use]
-extern crate serde_json;
-
-use common::{read_json, setup};
-use jsonpath::{SelectorMut, Selector};
-use serde_json::Value;
-
-mod common;
-
-#[test]
-fn selector_mut() {
-    setup();
-
-    let mut selector_mut = SelectorMut::new();
-
-    let mut nums = Vec::new();
-    let result = selector_mut
-        .str_path(r#"$.store..price"#).unwrap()
-        .value(read_json("./benches/example.json"))
-        .replace_with(&mut |v| {
-            match v {
-                Value::Number(n) => {
-                    nums.push(n.as_f64().unwrap());
-                }
-                _ => {}
-            }
-            Value::String("a".to_string())
-        }).unwrap()
-        .take().unwrap();
-
-    assert_eq!(nums, vec![8.95_f64, 12.99_f64, 8.99_f64, 22.99_f64, 19.95_f64]);
-
-    let mut selector = Selector::new();
-    let result = selector.str_path(r#"$.store..price"#).unwrap()
-        .value(&result)
-        .select().unwrap();
-
-    assert_eq!(vec![&json!("a"), &json!("a"), &json!("a"), &json!("a"), &json!("a")], result);
-}

tests/readme.rs

@@ -52,83 +52,105 @@ fn readme() {
 
     let mut selector = jsonpath::selector(&json_obj);
 
-    assert_eq!(selector("$.store.book[*].author").unwrap(),
-               vec![
-                   "Nigel Rees", "Evelyn Waugh", "Herman Melville", "J. R. R. Tolkien"
-               ]);
+    assert_eq!(
+        selector("$.store.book[*].author").unwrap(),
+        vec![
+            "Nigel Rees",
+            "Evelyn Waugh",
+            "Herman Melville",
+            "J. R. R. Tolkien"
+        ]
+    );
 
-    assert_eq!(selector("$..author").unwrap(),
-               vec![
-                   "Nigel Rees", "Evelyn Waugh", "Herman Melville", "J. R. R. Tolkien"
-               ]);
+    assert_eq!(
+        selector("$..author").unwrap(),
+        vec![
+            "Nigel Rees",
+            "Evelyn Waugh",
+            "Herman Melville",
+            "J. R. R. Tolkien"
+        ]
+    );
 
-    assert_eq!(selector("$.store.*").unwrap(),
-               vec![
-                   &json!([
-                       { "category": "reference", "author": "Nigel Rees", "title": "Sayings of the Century", "price": 8.95 },
-                       { "category": "fiction", "author": "Evelyn Waugh", "title": "Sword of Honour", "price": 12.99 },
-                       { "category": "fiction", "author": "Herman Melville", "title": "Moby Dick", "isbn": "0-553-21311-3", "price": 8.99 },
-                       { "category": "fiction", "author": "J. R. R. Tolkien", "title": "The Lord of the Rings", "isbn": "0-395-19395-8", "price": 22.99 }
-                   ]),
-                   &json!({ "color": "red", "price": 19.95 })
-               ]);
+    assert_eq!(
+        selector("$.store.*").unwrap(),
+        vec![
+            &json!([
+                { "category": "reference", "author": "Nigel Rees", "title": "Sayings of the Century", "price": 8.95 },
+                { "category": "fiction", "author": "Evelyn Waugh", "title": "Sword of Honour", "price": 12.99 },
+                { "category": "fiction", "author": "Herman Melville", "title": "Moby Dick", "isbn": "0-553-21311-3", "price": 8.99 },
+                { "category": "fiction", "author": "J. R. R. Tolkien", "title": "The Lord of the Rings", "isbn": "0-395-19395-8", "price": 22.99 }
+            ]),
+            &json!({ "color": "red", "price": 19.95 })
+        ]
+    );
 
-    assert_eq!(selector("$.store..price").unwrap(),
-               vec![
-                   8.95, 12.99, 8.99, 22.99, 19.95
-               ]);
+    assert_eq!(
+        selector("$.store..price").unwrap(),
+        vec![8.95, 12.99, 8.99, 22.99, 19.95]
+    );
 
-    assert_eq!(selector("$..book[2]").unwrap(),
-               vec![
-                   &json!({
-                        "category" : "fiction",
-                        "author" : "Herman Melville",
-                        "title" : "Moby Dick",
-                        "isbn" : "0-553-21311-3",
-                        "price" : 8.99
-                    })
-               ]);
+    assert_eq!(
+        selector("$..book[2]").unwrap(),
+        vec![&json!({
+            "category" : "fiction",
+            "author" : "Herman Melville",
+            "title" : "Moby Dick",
+            "isbn" : "0-553-21311-3",
+            "price" : 8.99
+        })]
+    );
 
-    assert_eq!(selector("$..book[-2]").unwrap(),
-               vec![
-                   &json!({
-                        "category" : "fiction",
-                        "author" : "Herman Melville",
-                        "title" : "Moby Dick",
-                        "isbn" : "0-553-21311-3",
-                        "price" : 8.99
-                    })
-               ]);
+    assert_eq!(
+        selector("$..book[-2]").unwrap(),
+        vec![&json!({
+            "category" : "fiction",
+            "author" : "Herman Melville",
+            "title" : "Moby Dick",
+            "isbn" : "0-553-21311-3",
+            "price" : 8.99
+        })]
+    );
 
-    assert_eq!(selector("$..book[0,1]").unwrap(),
-               vec![
-                   &json!({"category" : "reference","author" : "Nigel Rees","title" : "Sayings of the Century","price" : 8.95}),
-                   &json!({"category" : "fiction","author" : "Evelyn Waugh","title" : "Sword of Honour","price" : 12.99})
-               ]);
+    assert_eq!(
+        selector("$..book[0,1]").unwrap(),
+        vec![
+            &json!({"category" : "reference","author" : "Nigel Rees","title" : "Sayings of the Century","price" : 8.95}),
+            &json!({"category" : "fiction","author" : "Evelyn Waugh","title" : "Sword of Honour","price" : 12.99})
+        ]
+    );
 
-    assert_eq!(selector("$..book[:2]").unwrap(),
-               vec![
-                   &json!({"category" : "reference","author" : "Nigel Rees","title" : "Sayings of the Century","price" : 8.95}),
-                   &json!({"category" : "fiction","author" : "Evelyn Waugh","title" : "Sword of Honour","price" : 12.99})
-               ]);
+    assert_eq!(
+        selector("$..book[:2]").unwrap(),
+        vec![
+            &json!({"category" : "reference","author" : "Nigel Rees","title" : "Sayings of the Century","price" : 8.95}),
+            &json!({"category" : "fiction","author" : "Evelyn Waugh","title" : "Sword of Honour","price" : 12.99})
+        ]
+    );
 
-    assert_eq!(selector("$..book[:2]").unwrap(),
-               vec![
-                   &json!({"category" : "reference","author" : "Nigel Rees","title" : "Sayings of the Century","price" : 8.95}),
-                   &json!({"category" : "fiction","author" : "Evelyn Waugh","title" : "Sword of Honour","price" : 12.99})
-               ]);
+    assert_eq!(
+        selector("$..book[:2]").unwrap(),
+        vec![
+            &json!({"category" : "reference","author" : "Nigel Rees","title" : "Sayings of the Century","price" : 8.95}),
+            &json!({"category" : "fiction","author" : "Evelyn Waugh","title" : "Sword of Honour","price" : 12.99})
+        ]
+    );
 
-    assert_eq!(selector("$..book[?(@.isbn)]").unwrap(),
-               vec![
-                   &json!({"category" : "fiction","author" : "Herman Melville","title" : "Moby Dick","isbn" : "0-553-21311-3","price" : 8.99}),
-                   &json!({"category" : "fiction","author" : "J. R. R. Tolkien","title" : "The Lord of the Rings","isbn" : "0-395-19395-8","price" : 22.99})
-               ]);
+    assert_eq!(
+        selector("$..book[?(@.isbn)]").unwrap(),
+        vec![
+            &json!({"category" : "fiction","author" : "Herman Melville","title" : "Moby Dick","isbn" : "0-553-21311-3","price" : 8.99}),
+            &json!({"category" : "fiction","author" : "J. R. R. Tolkien","title" : "The Lord of the Rings","isbn" : "0-395-19395-8","price" : 22.99})
+        ]
+    );
 
-    assert_eq!(selector("$.store.book[?(@.price < 10)]").unwrap(),
-               vec![
-                   &json!({"category" : "reference","author" : "Nigel Rees","title" : "Sayings of the Century","price" : 8.95}),
-                   &json!({"category" : "fiction","author" : "Herman Melville","title" : "Moby Dick","isbn" : "0-553-21311-3","price" : 8.99})
-               ]);
+    assert_eq!(
+        selector("$.store.book[?(@.price < 10)]").unwrap(),
+        vec![
+            &json!({"category" : "reference","author" : "Nigel Rees","title" : "Sayings of the Century","price" : 8.95}),
+            &json!({"category" : "fiction","author" : "Herman Melville","title" : "Moby Dick","isbn" : "0-553-21311-3","price" : 8.99})
+        ]
+    );
 }
 
 #[test]
@@ -151,12 +173,14 @@ fn readme_selector() {
             {"name": "친구4"}
     ]});
 
-    let mut selector = Selector::new();
+    let mut selector = Selector::default();
 
     let result = selector
-        .str_path("$..[?(@.age >= 30)]").unwrap()
+        .str_path("$..[?(@.age >= 30)]")
+        .unwrap()
         .value(&json_obj)
-        .select().unwrap();
+        .select()
+        .unwrap();
 
     assert_eq!(vec![&json!({"name": "친구3", "age": 30})], result);
 
@@ -164,7 +188,13 @@ fn readme_selector() {
     assert_eq!(r#"[{"name":"친구3","age":30}]"#, result);
 
     let result = selector.select_as::<Friend>().unwrap();
-    assert_eq!(vec![Friend { name: "친구3".to_string(), age: Some(30) }], result);
+    assert_eq!(
+        vec![Friend {
+            name: "친구3".to_string(),
+            age: Some(30)
+        }],
+        result
+    );
 }
 
 #[test]
@@ -181,10 +211,11 @@ fn readme_selector_mut() {
             {"name": "친구4"}
     ]});
 
-    let mut selector_mut = SelectorMut::new();
+    let mut selector_mut = SelectorMut::default();
 
     let result = selector_mut
-        .str_path("$..[?(@.age == 20)].age").unwrap()
+        .str_path("$..[?(@.age == 20)].age")
+        .unwrap()
         .value(json_obj)
         .replace_with(&mut |v| {
             let age = if let Value::Number(n) = v {
@@ -193,21 +224,26 @@ fn readme_selector_mut() {
                 0
             };
 
-            json!(age)
-        }).unwrap()
-        .take().unwrap();
+            Some(json!(age))
+        })
+        .unwrap()
+        .take()
+        .unwrap();
 
-    assert_eq!(result, json!({
-        "school": {
+    assert_eq!(
+        result,
+        json!({
+            "school": {
+                "friends": [
+                    {"name": "친구1", "age": 40},
+                    {"name": "친구2", "age": 40}
+                ]
+            },
             "friends": [
-                {"name": "친구1", "age": 40},
-                {"name": "친구2", "age": 40}
-            ]
-        },
-        "friends": [
-            {"name": "친구3", "age": 30},
-            {"name": "친구4"}
-    ]}));
+                {"name": "친구3", "age": 30},
+                {"name": "친구4"}
+        ]})
+    );
 }
 
 #[test]
@@ -226,15 +262,19 @@ fn readme_select() {
 
     let json = jsonpath::select(&json_obj, "$..friends[0]").unwrap();
 
-    assert_eq!(json, vec![
-        &json!({"name": "친구3", "age": 30}),
-        &json!({"name": "친구1", "age": 20})
-    ]);
+    assert_eq!(
+        json,
+        vec![
+            &json!({"name": "친구3", "age": 30}),
+            &json!({"name": "친구1", "age": 20})
+        ]
+    );
 }
 
 #[test]
 fn readme_select_as_str() {
-    let ret = jsonpath::select_as_str(r#"
+    let ret = jsonpath::select_as_str(
+        r#"
     {
         "school": {
             "friends": [
@@ -247,9 +287,15 @@ fn readme_select_as_str() {
             {"name": "친구4"}
         ]
     }
-    "#, "$..friends[0]").unwrap();
+    "#,
+        "$..friends[0]",
+    )
+    .unwrap();
 
-    assert_eq!(ret, r#"[{"name":"친구3","age":30},{"name":"친구1","age":20}]"#);
+    assert_eq!(
+        ret,
+        r#"[{"name":"친구3","age":30},{"name":"친구1","age":20}]"#
+    );
 }
 
 #[test]
@@ -261,19 +307,21 @@ fn readme_select_as() {
         phones: Vec<String>,
     }
 
-    let ret: Vec<Person> = jsonpath::select_as(r#"
-    {
-        "person":
-            {
-                "name": "Doe John",
-                "age": 44,
-                "phones": [
-                    "+44 1234567",
-                    "+44 2345678"
-                ]
-            }
-    }
-    "#, "$.person").unwrap();
+    let ret: Vec<Person> = jsonpath::select_as(
+        r#"{
+                    "person":
+                        {
+                            "name": "Doe John",
+                            "age": 44,
+                            "phones": [
+                                "+44 1234567",
+                                "+44 2345678"
+                            ]
+                        }
+                }"#,
+        "$.person",
+    )
+    .unwrap();
 
     let person = Person {
         name: "Doe John".to_string(),
@@ -302,10 +350,13 @@ fn readme_compile() {
 
     let json = first_firend(&json_obj).unwrap();
 
-    assert_eq!(json, vec![
-        &json!({"name": "친구3", "age": 30}),
-        &json!({"name": "친구1", "age": 20})
-    ]);
+    assert_eq!(
+        json,
+        vec![
+            &json!({"name": "친구3", "age": 30}),
+            &json!({"name": "친구1", "age": 20})
+        ]
+    );
 }
 
 #[test]
@@ -326,17 +377,23 @@ fn readme_selector_fn() {
 
     let json = selector("$..friends[0]").unwrap();
 
-    assert_eq!(json, vec![
-        &json!({"name": "친구3", "age": 30}),
-        &json!({"name": "친구1", "age": 20})
-    ]);
+    assert_eq!(
+        json,
+        vec![
+            &json!({"name": "친구3", "age": 30}),
+            &json!({"name": "친구1", "age": 20})
+        ]
+    );
 
     let json = selector("$..friends[1]").unwrap();
 
-    assert_eq!(json, vec![
-        &json!({"name": "친구4"}),
-        &json!({"name": "친구2", "age": 20})
-    ]);
+    assert_eq!(
+        json,
+        vec![
+            &json!({"name": "친구4"}),
+            &json!({"name": "친구2", "age": 20})
+        ]
+    );
 }
 
 #[test]
@@ -363,23 +420,34 @@ fn readme_selector_as() {
 
     let json = selector("$..friends[0]").unwrap();
 
-    let ret = vec!(
-        Friend { name: "친구3".to_string(), age: Some(30) },
-        Friend { name: "친구1".to_string(), age: Some(20) }
-    );
+    let ret = vec![
+        Friend {
+            name: "친구3".to_string(),
+            age: Some(30),
+        },
+        Friend {
+            name: "친구1".to_string(),
+            age: Some(20),
+        },
+    ];
     assert_eq!(json, ret);
 
     let json = selector("$..friends[1]").unwrap();
 
-    let ret = vec!(
-        Friend { name: "친구4".to_string(), age: None },
-        Friend { name: "친구2".to_string(), age: Some(20) }
-    );
+    let ret = vec![
+        Friend {
+            name: "친구4".to_string(),
+            age: None,
+        },
+        Friend {
+            name: "친구2".to_string(),
+            age: Some(20),
+        },
+    ];
 
     assert_eq!(json, ret);
 }
 
-
 #[test]
 fn readme_delete() {
     let json_obj = json!({
@@ -396,37 +464,41 @@ fn readme_delete() {
 
     let ret = jsonpath::delete(json_obj, "$..[?(20 == @.age)]").unwrap();
 
-    assert_eq!(ret, json!({
-        "school": {
+    assert_eq!(
+        ret,
+        json!({
+            "school": {
+                "friends": [
+                    null,
+                    null
+                ]
+            },
             "friends": [
-                null,
-                null
-            ]
-        },
-        "friends": [
-            {"name": "친구3", "age": 30},
-            {"name": "친구4"}
-    ]}));
+                {"name": "친구3", "age": 30},
+                {"name": "친구4"}
+        ]})
+    );
 }
 
 #[test]
 fn readme_delete2() {
-    let json_obj = common::read_json("./benches/example.json");
+    let json_obj = common::read_json("./benchmark/example.json");
 
     let ret = jsonpath::delete(json_obj, "$.store.book").unwrap();
 
-    println!("{:?}", ret);
-
-    assert_eq!(ret, json!({
-       "store": {
-           "book": null,
-           "bicycle": {
-               "color": "red",
-               "price": 19.95
-           }
-       },
-       "expensive": 10
-   }));
+    assert_eq!(
+        ret,
+        json!({
+            "store": {
+                "book": null,
+                "bicycle": {
+                    "color": "red",
+                    "price": 19.95
+                }
+            },
+            "expensive": 10
+        })
+    );
 }
 
 #[test]
@@ -450,18 +522,22 @@ fn readme_replace_with() {
             0
         };
 
-        json!(age)
-    }).unwrap();
+        Some(json!(age))
+    })
+    .unwrap();
 
-    assert_eq!(result, json!({
-        "school": {
+    assert_eq!(
+        result,
+        json!({
+            "school": {
+                "friends": [
+                    {"name": "친구1", "age": 40},
+                    {"name": "친구2", "age": 40}
+                ]
+            },
             "friends": [
-                {"name": "친구1", "age": 40},
-                {"name": "친구2", "age": 40}
-            ]
-        },
-        "friends": [
-            {"name": "친구3", "age": 30},
-            {"name": "친구4"}
-    ]}));
-}
+                {"name": "친구3", "age": 30},
+                {"name": "친구4"}
+        ]})
+    );
+}

tests/selector.rs

@@ -0,0 +1,131 @@
+extern crate jsonpath_lib as jsonpath;
+#[macro_use]
+extern crate serde_json;
+
+use common::{read_json, setup};
+use jsonpath::{Parser, Selector, SelectorMut};
+use serde_json::Value;
+
+mod common;
+
+#[test]
+fn selector_mut() {
+    setup();
+
+    let mut selector_mut = SelectorMut::default();
+
+    let mut nums = Vec::new();
+    let result = selector_mut
+        .str_path(r#"$.store..price"#)
+        .unwrap()
+        .value(read_json("./benchmark/example.json"))
+        .replace_with(&mut |v| {
+            if let Value::Number(n) = v {
+                nums.push(n.as_f64().unwrap());
+            }
+            Some(Value::String("a".to_string()))
+        })
+        .unwrap()
+        .take()
+        .unwrap();
+
+    assert_eq!(
+        nums,
+        vec![8.95_f64, 12.99_f64, 8.99_f64, 22.99_f64, 19.95_f64]
+    );
+
+    let mut selector = Selector::default();
+    let result = selector
+        .str_path(r#"$.store..price"#)
+        .unwrap()
+        .value(&result)
+        .select()
+        .unwrap();
+
+    assert_eq!(
+        vec![
+            &json!("a"),
+            &json!("a"),
+            &json!("a"),
+            &json!("a"),
+            &json!("a")
+        ],
+        result
+    );
+}
+
+#[test]
+fn selector_node_ref() {
+    let node = Parser::compile("$.*").unwrap();
+    let mut selector = Selector::default();
+    selector.compiled_path(&node);
+    assert!(std::ptr::eq(selector.node_ref().unwrap(), &node));
+}
+
+#[test]
+fn selector_delete() {
+    setup();
+
+    let mut selector_mut = SelectorMut::default();
+
+    let result = selector_mut
+        .str_path(r#"$.store..price[?(@>13)]"#)
+        .unwrap()
+        .value(read_json("./benchmark/example.json"))
+        .delete()
+        .unwrap()
+        .take()
+        .unwrap();
+
+    let mut selector = Selector::default();
+    let result = selector
+        .str_path(r#"$.store..price"#)
+        .unwrap()
+        .value(&result)
+        .select()
+        .unwrap();
+
+    assert_eq!(
+        result,
+        vec![
+            &json!(8.95),
+            &json!(12.99),
+            &json!(8.99),
+            &Value::Null,
+            &Value::Null
+        ]
+    );
+}
+
+#[test]
+fn selector_remove() {
+    setup();
+
+    let mut selector_mut = SelectorMut::default();
+
+    let result = selector_mut
+        .str_path(r#"$.store..price[?(@>13)]"#)
+        .unwrap()
+        .value(read_json("./benchmark/example.json"))
+        .remove()
+        .unwrap()
+        .take()
+        .unwrap();
+
+    let mut selector = Selector::default();
+    let result = selector
+        .str_path(r#"$.store..price"#)
+        .unwrap()
+        .value(&result)
+        .select()
+        .unwrap();
+
+    assert_eq!(
+        result,
+        vec![
+            &json!(8.95),
+            &json!(12.99),
+            &json!(8.99)
+        ]
+    );
+}

wasm/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "jsonpath-wasm"
-version = "0.2.1"
+version = "0.2.4"
 authors = ["Changseok Han <freestrings@gmail.com>"]
 description = "It is Webassembly version of jsonpath_lib that is JsonPath engine written in Rust - Demo: https://freestrings.github.io/jsonpath"
 keywords = ["jsonpath", "json", "webassembly", "parsing", "rust"]
@@ -14,10 +14,10 @@ crate-type = ["cdylib", "rlib"]
 default = ["console_error_panic_hook", "wee_alloc"]
 
 [dependencies]
-cfg-if = "0.1.2"
+cfg-if = "0.1"
 wasm-bindgen = { version = "0.2", features = ["serde-serialize"] }
-console_error_panic_hook = { version = "0.1.1", optional = true }
-wee_alloc = { version = "0.4.2", optional = true }
+console_error_panic_hook = { version = "0.1", optional = true }
+wee_alloc = { version = "0.4", optional = true }
 
 jsonpath_lib = { path = "../" }
 serde = "1.0"

wasm/examples/browser/index.js

@@ -1,6 +1,5 @@
 import * as jsonpath from "jsonpath-wasm";
 
-
 let jsonObj = {
     "school": {
         "friends": [
@@ -19,14 +18,21 @@ let ret = [
     {"name": "친구1", "age": 20}
 ];
 
-let selector = new jsonpath.Selector();
-selector.path('$..friends[0]');
-selector.value(jsonObj);
+const path = '$..friends[0]';
 
-let selectToObj = selector.selectTo();
-let selectToString = selector.selectToStr();
+let ret1 = jsonpath.select(jsonObj, path);
+let ret2 = jsonpath.compile(path)(jsonObj);
+let ret3 = jsonpath.selector(jsonObj)(path);
+
+let selector = new jsonpath.Selector();
+selector.path(path);
+selector.value(jsonObj);
+let ret4 = selector.select();
 
 console.log(
-    JSON.stringify(ret) == JSON.stringify(selectToObj),
-    JSON.stringify(ret) == selectToString
+    JSON.stringify(ret) == JSON.stringify(ret1),
+    JSON.stringify(ret) == JSON.stringify(ret2),
+    JSON.stringify(ret) == JSON.stringify(ret3),
+    JSON.stringify(ret) == JSON.stringify(ret4)
 );
+

wasm/examples/browser/package-lock.json

@@ -483,12 +483,6 @@
       "integrity": "sha512-Un7MIEDdUC5gNpcGDV97op1Ywk748MpHcFTHoYs6qnj1Z3j7I53VG3nwZhKzoBZmbdRNnb6WRdFlwl7tSDuZGw==",
       "dev": true
     },
-    "bluebird": {
-      "version": "3.5.4",
-      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.4.tgz",
-      "integrity": "sha512-FG+nFEZChJrbQ9tIccIfZJBz3J7mLrAhxakAbnrJWn8d7aKOC+LWifa0G+p4ZqKp4y13T7juYvdhq9NzKdsrjw==",
-      "dev": true
-    },
     "bn.js": {
       "version": "4.11.8",
       "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.8.tgz",
@@ -684,28 +678,6 @@
       "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=",
       "dev": true
     },
-    "cacache": {
-      "version": "11.3.2",
-      "resolved": "https://registry.npmjs.org/cacache/-/cacache-11.3.2.tgz",
-      "integrity": "sha512-E0zP4EPGDOaT2chM08Als91eYnf8Z+eH1awwwVsngUmgppfM5jjJ8l3z5vO5p5w/I3LsiXawb1sW0VY65pQABg==",
-      "dev": true,
-      "requires": {
-        "bluebird": "^3.5.3",
-        "chownr": "^1.1.1",
-        "figgy-pudding": "^3.5.1",
-        "glob": "^7.1.3",
-        "graceful-fs": "^4.1.15",
-        "lru-cache": "^5.1.1",
-        "mississippi": "^3.0.0",
-        "mkdirp": "^0.5.1",
-        "move-concurrently": "^1.0.1",
-        "promise-inflight": "^1.0.1",
-        "rimraf": "^2.6.2",
-        "ssri": "^6.0.1",
-        "unique-filename": "^1.1.1",
-        "y18n": "^4.0.0"
-      }
-    },
     "cache-base": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/cache-base/-/cache-base-1.0.1.tgz",
@@ -976,22 +948,83 @@
       "dev": true
     },
     "copy-webpack-plugin": {
-      "version": "5.0.2",
-      "resolved": "https://registry.npmjs.org/copy-webpack-plugin/-/copy-webpack-plugin-5.0.2.tgz",
-      "integrity": "sha512-7nC7EynPrnBTtBwwbG1aTqrfNS1aTb9eEjSmQDqFtKAsJrR3uDb+pCDIFT2LzhW+SgGJxQcYzThrmXzzZ720uw==",
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/copy-webpack-plugin/-/copy-webpack-plugin-5.1.1.tgz",
+      "integrity": "sha512-P15M5ZC8dyCjQHWwd4Ia/dm0SgVvZJMYeykVIVYXbGyqO4dWB5oyPHp9i7wjwo5LhtlhKbiBCdS2NvM07Wlybg==",
       "dev": true,
       "requires": {
-        "cacache": "^11.3.1",
-        "find-cache-dir": "^2.0.0",
+        "cacache": "^12.0.3",
+        "find-cache-dir": "^2.1.0",
         "glob-parent": "^3.1.0",
         "globby": "^7.1.1",
-        "is-glob": "^4.0.0",
-        "loader-utils": "^1.1.0",
+        "is-glob": "^4.0.1",
+        "loader-utils": "^1.2.3",
         "minimatch": "^3.0.4",
         "normalize-path": "^3.0.0",
-        "p-limit": "^2.1.0",
-        "serialize-javascript": "^1.4.0",
+        "p-limit": "^2.2.1",
+        "schema-utils": "^1.0.0",
+        "serialize-javascript": "^2.1.2",
         "webpack-log": "^2.0.0"
+      },
+      "dependencies": {
+        "bluebird": {
+          "version": "3.7.2",
+          "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.7.2.tgz",
+          "integrity": "sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg==",
+          "dev": true
+        },
+        "cacache": {
+          "version": "12.0.3",
+          "resolved": "https://registry.npmjs.org/cacache/-/cacache-12.0.3.tgz",
+          "integrity": "sha512-kqdmfXEGFepesTuROHMs3MpFLWrPkSSpRqOw80RCflZXy/khxaArvFrQ7uJxSUduzAufc6G0g1VUCOZXxWavPw==",
+          "dev": true,
+          "requires": {
+            "bluebird": "^3.5.5",
+            "chownr": "^1.1.1",
+            "figgy-pudding": "^3.5.1",
+            "glob": "^7.1.4",
+            "graceful-fs": "^4.1.15",
+            "infer-owner": "^1.0.3",
+            "lru-cache": "^5.1.1",
+            "mississippi": "^3.0.0",
+            "mkdirp": "^0.5.1",
+            "move-concurrently": "^1.0.1",
+            "promise-inflight": "^1.0.1",
+            "rimraf": "^2.6.3",
+            "ssri": "^6.0.1",
+            "unique-filename": "^1.1.1",
+            "y18n": "^4.0.0"
+          }
+        },
+        "glob": {
+          "version": "7.1.6",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
+          "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
+        },
+        "p-limit": {
+          "version": "2.2.2",
+          "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.2.2.tgz",
+          "integrity": "sha512-WGR+xHecKTr7EbUEhyLSh5Dube9JtdiG78ufaeLxTgpudf/20KqyMioIUZJAezlTIi6evxuoUs9YXc11cU+yzQ==",
+          "dev": true,
+          "requires": {
+            "p-try": "^2.0.0"
+          }
+        },
+        "serialize-javascript": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-2.1.2.tgz",
+          "integrity": "sha512-rs9OggEUF0V4jUSecXazOYsLfu7OGK2qIn3c7IPBiffz32XniEp/TX9Xmc9LQfK2nQ2QKHvZ2oygKUGU0lG4jQ==",
+          "dev": true
+        }
       }
     },
     "core-util-is": {
@@ -2679,6 +2712,12 @@
       "integrity": "sha1-gtwzbSMrkGIXnQWrMpOmYFn9Q10=",
       "dev": true
     },
+    "infer-owner": {
+      "version": "1.0.4",
+      "resolved": "https://registry.npmjs.org/infer-owner/-/infer-owner-1.0.4.tgz",
+      "integrity": "sha512-IClj+Xz94+d7irH5qRyfJonOdfTzuDaifE6ZPWfx0N0+/ATZCbuTPq2prFl526urkQd90WyUKIh1DfBQ2hMz9A==",
+      "dev": true
+    },
     "inflight": {
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
@@ -2974,6 +3013,11 @@
         }
       }
     },
+    "jsonpath-wasm": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/jsonpath-wasm/-/jsonpath-wasm-0.2.4.tgz",
+      "integrity": "sha512-sxvPEFMpAoNjxUQOkJmVyE3dKX7v4ebX5TkWKguyHteZpHJKlMQbgPKFYL0X3SIU7wAstpOl6hVODLThVmJf1w=="
+    },
     "killable": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/killable/-/killable-1.0.1.tgz",
@@ -3023,9 +3067,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.11",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-      "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
+      "version": "4.17.14",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz",
+      "integrity": "sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==",
       "dev": true
     },
     "loglevel": {
@@ -3237,9 +3281,9 @@
       }
     },
     "mixin-deep": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/mixin-deep/-/mixin-deep-1.3.1.tgz",
-      "integrity": "sha512-8ZItLHeEgaqEvd5lYBXfm4EZSFCX29Jb9K+lAHhDKzReKBQKj3R+7NOF6tjqYi9t4oI8VUfaWITJQm86wnXGNQ==",
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/mixin-deep/-/mixin-deep-1.3.2.tgz",
+      "integrity": "sha512-WRoDn//mXBiJ1H40rqa3vH0toePwSsGb45iInWlTySa+Uu4k3tYUSxa2v1KqAiLtvlrSzaExqS1gtk96A9zvEA==",
       "dev": true,
       "requires": {
         "for-in": "^1.0.2",
@@ -4107,12 +4151,6 @@
         "statuses": "~1.4.0"
       }
     },
-    "serialize-javascript": {
-      "version": "1.6.1",
-      "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-1.6.1.tgz",
-      "integrity": "sha512-A5MOagrPFga4YaKQSWHryl7AXvbQkEqpw4NNYMTNYUNV51bA8ABHgYFpqKx+YFFrw59xMV1qGH1R4AgoNIVgCw==",
-      "dev": true
-    },
     "serve-index": {
       "version": "1.9.1",
       "resolved": "https://registry.npmjs.org/serve-index/-/serve-index-1.9.1.tgz",
@@ -4147,9 +4185,9 @@
       "dev": true
     },
     "set-value": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/set-value/-/set-value-2.0.0.tgz",
-      "integrity": "sha512-hw0yxk9GT/Hr5yJEYnHNKYXkIA8mVJgd9ditYZCe16ZczcaELYYcfvaXesNACk2O8O0nTiPQcQhGUQj8JLzeeg==",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/set-value/-/set-value-2.0.1.tgz",
+      "integrity": "sha512-JxHc1weCN68wRY0fhCoXpyK55m/XPHafOmK4UWD7m2CI14GMcFypt4w/0+NV5f/ZMby2F6S2wwA7fgynh9gWSw==",
       "dev": true,
       "requires": {
         "extend-shallow": "^2.0.1",
@@ -4629,46 +4667,107 @@
       "integrity": "sha512-4WK/bYZmj8xLr+HUCODHGF1ZFzsYffasLUgEiMBY4fgtltdO6B4WJtlSbPaDTLpYTcGVwM2qLnFTICEcNxs3kA==",
       "dev": true
     },
-    "terser": {
-      "version": "3.17.0",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-3.17.0.tgz",
-      "integrity": "sha512-/FQzzPJmCpjAH9Xvk2paiWrFq+5M6aVOf+2KRbwhByISDX/EujxsK+BAvrhb6H+2rtrLCHK9N01wO014vrIwVQ==",
-      "dev": true,
-      "requires": {
-        "commander": "^2.19.0",
-        "source-map": "~0.6.1",
-        "source-map-support": "~0.5.10"
-      },
-      "dependencies": {
-        "source-map": {
-          "version": "0.6.1",
-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
-          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
-          "dev": true
-        }
-      }
-    },
     "terser-webpack-plugin": {
-      "version": "1.2.3",
-      "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-1.2.3.tgz",
-      "integrity": "sha512-GOK7q85oAb/5kE12fMuLdn2btOS9OBZn4VsecpHDywoUC/jLhSAKOiYo0ezx7ss2EXPMzyEWFoE0s1WLE+4+oA==",
+      "version": "1.4.3",
+      "resolved": "https://registry.npmjs.org/terser-webpack-plugin/-/terser-webpack-plugin-1.4.3.tgz",
+      "integrity": "sha512-QMxecFz/gHQwteWwSo5nTc6UaICqN1bMedC5sMtUc7y3Ha3Q8y6ZO0iCR8pq4RJC8Hjf0FEPEHZqcMB/+DFCrA==",
       "dev": true,
       "requires": {
-        "cacache": "^11.0.2",
-        "find-cache-dir": "^2.0.0",
+        "cacache": "^12.0.2",
+        "find-cache-dir": "^2.1.0",
+        "is-wsl": "^1.1.0",
         "schema-utils": "^1.0.0",
-        "serialize-javascript": "^1.4.0",
+        "serialize-javascript": "^2.1.2",
         "source-map": "^0.6.1",
-        "terser": "^3.16.1",
-        "webpack-sources": "^1.1.0",
-        "worker-farm": "^1.5.2"
+        "terser": "^4.1.2",
+        "webpack-sources": "^1.4.0",
+        "worker-farm": "^1.7.0"
       },
       "dependencies": {
+        "bluebird": {
+          "version": "3.7.2",
+          "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.7.2.tgz",
+          "integrity": "sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg==",
+          "dev": true
+        },
+        "cacache": {
+          "version": "12.0.3",
+          "resolved": "https://registry.npmjs.org/cacache/-/cacache-12.0.3.tgz",
+          "integrity": "sha512-kqdmfXEGFepesTuROHMs3MpFLWrPkSSpRqOw80RCflZXy/khxaArvFrQ7uJxSUduzAufc6G0g1VUCOZXxWavPw==",
+          "dev": true,
+          "requires": {
+            "bluebird": "^3.5.5",
+            "chownr": "^1.1.1",
+            "figgy-pudding": "^3.5.1",
+            "glob": "^7.1.4",
+            "graceful-fs": "^4.1.15",
+            "infer-owner": "^1.0.3",
+            "lru-cache": "^5.1.1",
+            "mississippi": "^3.0.0",
+            "mkdirp": "^0.5.1",
+            "move-concurrently": "^1.0.1",
+            "promise-inflight": "^1.0.1",
+            "rimraf": "^2.6.3",
+            "ssri": "^6.0.1",
+            "unique-filename": "^1.1.1",
+            "y18n": "^4.0.0"
+          }
+        },
+        "glob": {
+          "version": "7.1.6",
+          "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
+          "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
+          "dev": true,
+          "requires": {
+            "fs.realpath": "^1.0.0",
+            "inflight": "^1.0.4",
+            "inherits": "2",
+            "minimatch": "^3.0.4",
+            "once": "^1.3.0",
+            "path-is-absolute": "^1.0.0"
+          }
+        },
+        "serialize-javascript": {
+          "version": "2.1.2",
+          "resolved": "https://registry.npmjs.org/serialize-javascript/-/serialize-javascript-2.1.2.tgz",
+          "integrity": "sha512-rs9OggEUF0V4jUSecXazOYsLfu7OGK2qIn3c7IPBiffz32XniEp/TX9Xmc9LQfK2nQ2QKHvZ2oygKUGU0lG4jQ==",
+          "dev": true
+        },
         "source-map": {
           "version": "0.6.1",
           "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
           "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
           "dev": true
+        },
+        "terser": {
+          "version": "4.6.3",
+          "resolved": "https://registry.npmjs.org/terser/-/terser-4.6.3.tgz",
+          "integrity": "sha512-Lw+ieAXmY69d09IIc/yqeBqXpEQIpDGZqT34ui1QWXIUpR2RjbqEkT8X7Lgex19hslSqcWM5iMN2kM11eMsESQ==",
+          "dev": true,
+          "requires": {
+            "commander": "^2.20.0",
+            "source-map": "~0.6.1",
+            "source-map-support": "~0.5.12"
+          }
+        },
+        "webpack-sources": {
+          "version": "1.4.3",
+          "resolved": "https://registry.npmjs.org/webpack-sources/-/webpack-sources-1.4.3.tgz",
+          "integrity": "sha512-lgTS3Xhv1lCOKo7SA5TjKXMjpSM4sBjNV5+q2bqesbSPs5FjGmU6jjtBSkX9b4qW87vDIsCIlUPOEhbZrMdjeQ==",
+          "dev": true,
+          "requires": {
+            "source-list-map": "^2.0.0",
+            "source-map": "~0.6.1"
+          }
+        },
+        "worker-farm": {
+          "version": "1.7.0",
+          "resolved": "https://registry.npmjs.org/worker-farm/-/worker-farm-1.7.0.tgz",
+          "integrity": "sha512-rvw3QTZc8lAxyVrqcSGVm5yP/IJ2UcB3U0graE3LCFoZ0Yn2x4EoVSqJKdB/T5M+FLcRPjz4TDacRf3OCfNUzw==",
+          "dev": true,
+          "requires": {
+            "errno": "~0.1.7"
+          }
         }
       }
     },
@@ -4774,38 +4873,15 @@
       "dev": true
     },
     "union-value": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.0.tgz",
-      "integrity": "sha1-XHHDTLW61dzr4+oM0IIHulqhrqQ=",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.1.tgz",
+      "integrity": "sha512-tJfXmxMeWYnczCVs7XAEvIV7ieppALdyepWMkHkwciRpZraG/xwT+s2JN8+pr1+8jCRf80FFzvr+MpQeeoF4Xg==",
       "dev": true,
       "requires": {
         "arr-union": "^3.1.0",
         "get-value": "^2.0.6",
         "is-extendable": "^0.1.1",
-        "set-value": "^0.4.3"
-      },
-      "dependencies": {
-        "extend-shallow": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
-          "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
-          "dev": true,
-          "requires": {
-            "is-extendable": "^0.1.0"
-          }
-        },
-        "set-value": {
-          "version": "0.4.3",
-          "resolved": "https://registry.npmjs.org/set-value/-/set-value-0.4.3.tgz",
-          "integrity": "sha1-fbCPnT0i3H945Trzw79GZuzfzPE=",
-          "dev": true,
-          "requires": {
-            "extend-shallow": "^2.0.1",
-            "is-extendable": "^0.1.1",
-            "is-plain-object": "^2.0.1",
-            "to-object-path": "^0.3.0"
-          }
-        }
+        "set-value": "^2.0.1"
       }
     },
     "unique-filename": {
@@ -5210,15 +5286,6 @@
       "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho=",
       "dev": true
     },
-    "worker-farm": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/worker-farm/-/worker-farm-1.6.0.tgz",
-      "integrity": "sha512-6w+3tHbM87WnSWnENBUvA2pxJPLhQUg5LKwUQHq3r+XPhIM+Gh2R5ycbwPCyuGbNg+lPgdcnQUhuC02kJCvffQ==",
-      "dev": true,
-      "requires": {
-        "errno": "~0.1.7"
-      }
-    },
     "wrap-ansi": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",

wasm/examples/browser/package.json

@@ -7,9 +7,12 @@
     "start": "webpack-dev-server"
   },
   "devDependencies": {
-    "copy-webpack-plugin": "^5.0.1",
+    "copy-webpack-plugin": "^5.1.1",
     "webpack": "^4.29.6",
     "webpack-cli": "^3.3.0",
     "webpack-dev-server": "^3.2.1"
+  },
+  "dependencies": {
+    "jsonpath-wasm": "^0.2.4"
   }
 }

wasm/examples/nodejs-wasm/index.js

@@ -18,14 +18,20 @@ let ret = [
     {"name": "친구1", "age": 20}
 ];
 
-let selector = new jsonpath.Selector();
-selector.path('$..friends[0]');
-selector.value(jsonObj);
+const path = '$..friends[0]';
 
-let selectToObj = selector.selectTo();
-let selectToString = selector.selectToStr();
+let ret1 = jsonpath.select(jsonObj, path);
+let ret2 = jsonpath.compile(path)(jsonObj);
+let ret3 = jsonpath.selector(jsonObj)(path);
+
+let selector = new jsonpath.Selector();
+selector.path(path);
+selector.value(jsonObj);
+let ret4 = selector.select();
 
 console.log(
-    JSON.stringify(ret) == JSON.stringify(selectToObj),
-    JSON.stringify(ret) == selectToString
-);
+    JSON.stringify(ret) == JSON.stringify(ret1),
+    JSON.stringify(ret) == JSON.stringify(ret2),
+    JSON.stringify(ret) == JSON.stringify(ret3),
+    JSON.stringify(ret) == JSON.stringify(ret4)
+);

wasm/examples/nodejs-wasm/package-lock.json

@@ -0,0 +1,12 @@
+{
+  "name": "jsonpath-wasm-nodejs-example",
+  "requires": true,
+  "lockfileVersion": 1,
+  "dependencies": {
+    "jsonpath-wasm": {
+      "version": "0.2.4",
+      "resolved": "https://registry.npmjs.org/jsonpath-wasm/-/jsonpath-wasm-0.2.4.tgz",
+      "integrity": "sha512-sxvPEFMpAoNjxUQOkJmVyE3dKX7v4ebX5TkWKguyHteZpHJKlMQbgPKFYL0X3SIU7wAstpOl6hVODLThVmJf1w=="
+    }
+  }
+}

wasm/examples/nodejs-wasm/package.json

@@ -4,6 +4,6 @@
     "start": "node index.js"
   },
   "dependencies": {
-    "jsonpath-wasm": "0"
+    "jsonpath-wasm": "^0.2.4"
   }
-}
+}

wasm/src/lib.rs

@@ -5,9 +5,9 @@ extern crate serde_json;
 extern crate wasm_bindgen;
 
 use cfg_if::cfg_if;
-use jsonpath::{JsonPathError, Parser};
 use jsonpath::Selector as _Selector;
 use jsonpath::SelectorMut as _SelectorMut;
+use jsonpath::{JsonPathError, Parser};
 use serde_json::Value;
 use wasm_bindgen::prelude::*;
 
@@ -40,43 +40,40 @@ macro_rules! console_error {
 }
 
 fn into_serde_json<D>(js_value: &JsValue) -> Result<D, String>
-    where D: for<'a> serde::de::Deserialize<'a>
+where
+    D: for<'a> serde::de::Deserialize<'a>,
 {
     if js_value.is_string() {
         match serde_json::from_str(js_value.as_string().unwrap().as_str()) {
             Ok(json) => Ok(json),
-            Err(e) => Err(e.to_string())
+            Err(e) => Err(e.to_string()),
         }
     } else {
         match js_value.into_serde() {
             Ok(json) => Ok(json),
-            Err(e) => Err(e.to_string())
+            Err(e) => Err(e.to_string()),
         }
     }
 }
 
-fn replace_fun(v: &Value, fun: &js_sys::Function) -> Value {
-    match JsValue::from_serde(v) {
-        Ok(js_v) => {
-            match fun.call1(&JsValue::NULL, &js_v) {
-                Ok(result) => {
-                    match into_serde_json(&result) {
-                        Ok(json) => json,
-                        Err(e) => {
-                            console_error!("replace_with - closure returned a invalid JSON: {:?}", e);
-                            Value::Null
-                        }
-                    }
-                }
+fn replace_fun(v: Value, fun: &js_sys::Function) -> Option<Value> {
+    match JsValue::from_serde(&v) {
+        Ok(js_v) => match fun.call1(&JsValue::NULL, &js_v) {
+            Ok(result) => match into_serde_json(&result) {
+                Ok(json) => Some(json),
                 Err(e) => {
-                    console_error!("replace_with - fail to call closure: {:?}", e);
-                    Value::Null
+                    console_error!("replace_with - closure returned a invalid JSON: {:?}", e);
+                    Some(Value::Null)
                 }
+            },
+            Err(e) => {
+                console_error!("replace_with - fail to call closure: {:?}", e);
+                Some(Value::Null)
             }
-        }
+        },
         Err(e) => {
             console_error!("replace_with - invalid JSON object: {:?}", e);
-            Value::Null
+            Some(Value::Null)
         }
     }
 }
@@ -88,24 +85,24 @@ pub fn compile(path: &str) -> JsValue {
     let cb = Closure::wrap(Box::new(move |js_value: JsValue| {
         let json = match into_serde_json(&js_value) {
             Ok(json) => json,
-            Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e)))
+            Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e))),
         };
 
         let mut selector = _Selector::new();
 
         match &node {
             Ok(node) => selector.compiled_path(node),
-            Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Path(e.clone())))
+            Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Path(e.clone()))),
         };
 
         match selector.value(&json).select() {
             Ok(ret) => match JsValue::from_serde(&ret) {
                 Ok(ret) => ret,
-                Err(e) => JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string())))
+                Err(e) => JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string()))),
             },
-            Err(e) => JsValue::from_str(&format!("{:?}", e))
+            Err(e) => JsValue::from_str(&format!("{:?}", e)),
         }
-    }) as Box<Fn(JsValue) -> JsValue>);
+    }) as Box<dyn Fn(JsValue) -> JsValue>);
 
     let ret = cb.as_ref().clone();
     cb.forget();
@@ -116,25 +113,27 @@ pub fn compile(path: &str) -> JsValue {
 pub fn selector(js_value: JsValue) -> JsValue {
     let json: Value = match JsValue::into_serde(&js_value) {
         Ok(json) => json,
-        Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string())))
+        Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string()))),
     };
 
-    let cb = Closure::wrap(Box::new(move |path: String| {
-        match Parser::compile(path.as_str()) {
+    let cb = Closure::wrap(
+        Box::new(move |path: String| match Parser::compile(path.as_str()) {
             Ok(node) => {
                 let mut selector = _Selector::new();
                 let _ = selector.compiled_path(&node);
                 match selector.value(&json).select() {
                     Ok(ret) => match JsValue::from_serde(&ret) {
                         Ok(ret) => ret,
-                        Err(e) => JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string())))
+                        Err(e) => {
+                            JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string())))
+                        }
                     },
-                    Err(e) => JsValue::from_str(&format!("{:?}", e))
+                    Err(e) => JsValue::from_str(&format!("{:?}", e)),
                 }
             }
-            Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Path(e)))
-        }
-    }) as Box<Fn(String) -> JsValue>);
+            Err(e) => JsValue::from_str(&format!("{:?}", JsonPathError::Path(e))),
+        }) as Box<dyn Fn(String) -> JsValue>,
+    );
 
     let ret = cb.as_ref().clone();
     cb.forget();
@@ -145,15 +144,15 @@ pub fn selector(js_value: JsValue) -> JsValue {
 pub fn select(js_value: JsValue, path: &str) -> JsValue {
     let json = match into_serde_json(&js_value) {
         Ok(json) => json,
-        Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e)))
+        Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e))),
     };
 
     match jsonpath::select(&json, path) {
         Ok(ret) => match JsValue::from_serde(&ret) {
             Ok(ret) => ret,
-            Err(e) => JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string())))
+            Err(e) => JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string()))),
         },
-        Err(e) => JsValue::from_str(&format!("{:?}", e))
+        Err(e) => JsValue::from_str(&format!("{:?}", e)),
     }
 }
 
@@ -161,17 +160,15 @@ pub fn select(js_value: JsValue, path: &str) -> JsValue {
 pub fn delete(js_value: JsValue, path: &str) -> JsValue {
     let json = match into_serde_json(&js_value) {
         Ok(json) => json,
-        Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e)))
+        Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e))),
     };
 
     match jsonpath::delete(json, path) {
-        Ok(ret) => {
-            match JsValue::from_serde(&ret) {
-                Ok(ret) => ret,
-                Err(e) => JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string())))
-            }
-        }
-        Err(e) => JsValue::from_str(&format!("{:?}", e))
+        Ok(ret) => match JsValue::from_serde(&ret) {
+            Ok(ret) => ret,
+            Err(e) => JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string()))),
+        },
+        Err(e) => JsValue::from_str(&format!("{:?}", e)),
     }
 }
 
@@ -179,15 +176,15 @@ pub fn delete(js_value: JsValue, path: &str) -> JsValue {
 pub fn replace_with(js_value: JsValue, path: &str, fun: js_sys::Function) -> JsValue {
     let json = match into_serde_json(&js_value) {
         Ok(json) => json,
-        Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e)))
+        Err(e) => return JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e))),
     };
 
     match jsonpath::replace_with(json, path, &mut |v| replace_fun(v, &fun)) {
         Ok(ret) => match JsValue::from_serde(&ret) {
             Ok(ret) => ret,
-            Err(e) => JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string())))
+            Err(e) => JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string()))),
         },
-        Err(e) => JsValue::from_str(&format!("{:?}", e))
+        Err(e) => JsValue::from_str(&format!("{:?}", e)),
     }
 }
 
@@ -196,6 +193,7 @@ pub fn replace_with(js_value: JsValue, path: &str, fun: js_sys::Function) -> JsV
 /// lifetime 제약으로 Selector를 사용 할 수 없다.
 ///
 #[wasm_bindgen]
+#[derive(Default)]
 pub struct Selector {
     path: Option<String>,
     value: Option<Value>,
@@ -205,7 +203,7 @@ pub struct Selector {
 impl Selector {
     #[wasm_bindgen(constructor)]
     pub fn new() -> Self {
-        Selector { path: None, value: None }
+        Selector::default()
     }
 
     #[wasm_bindgen(catch)]
@@ -227,23 +225,34 @@ impl Selector {
         let mut selector = _Selector::new();
 
         if let Some(path) = &self.path {
-            let _ = selector.str_path(&path).map_err(|e| JsValue::from_str(&format!("{:?}", e)))?;
+            let _ = selector
+                .str_path(&path)
+                .map_err(|e| JsValue::from_str(&format!("{:?}", e)))?;
         } else {
-            return Err(JsValue::from_str(&format!("{:?}", JsonPathError::EmptyPath)));
+            return Err(JsValue::from_str(&format!(
+                "{:?}",
+                JsonPathError::EmptyPath
+            )));
         }
 
         if let Some(value) = &self.value {
             let _ = selector.value(value);
         } else {
-            return Err(JsValue::from_str(&format!("{:?}", JsonPathError::EmptyValue)));
+            return Err(JsValue::from_str(&format!(
+                "{:?}",
+                JsonPathError::EmptyValue
+            )));
         }
 
         match selector.select() {
             Ok(ret) => match JsValue::from_serde(&ret) {
                 Ok(ret) => Ok(ret),
-                Err(e) => Err(JsValue::from_str(&format!("{:?}", JsonPathError::Serde(e.to_string()))))
+                Err(e) => Err(JsValue::from_str(&format!(
+                    "{:?}",
+                    JsonPathError::Serde(e.to_string())
+                ))),
             },
-            Err(e) => Err(JsValue::from_str(&format!("{:?}", e)))
+            Err(e) => Err(JsValue::from_str(&format!("{:?}", e))),
         }
     }
 }
@@ -252,6 +261,7 @@ impl Selector {
 /// `wasm_bindgen` 제약으로 builder-pattern을 구사 할 수 없다.
 ///
 #[wasm_bindgen]
+#[derive(Default)]
 pub struct SelectorMut {
     path: Option<String>,
     value: Option<Value>,
@@ -261,7 +271,7 @@ pub struct SelectorMut {
 impl SelectorMut {
     #[wasm_bindgen(constructor)]
     pub fn new() -> Self {
-        SelectorMut { path: None, value: None }
+        SelectorMut::default()
     }
 
     #[wasm_bindgen(catch)]
@@ -285,13 +295,19 @@ impl SelectorMut {
         if let Some(path) = &self.path {
             let _ = selector.str_path(path);
         } else {
-            return Err(JsValue::from_str(&format!("{:?}", JsonPathError::EmptyPath)));
+            return Err(JsValue::from_str(&format!(
+                "{:?}",
+                JsonPathError::EmptyPath
+            )));
         };
 
         if let Some(value) = self.value.take() {
             selector.value(value);
         } else {
-            return Err(JsValue::from_str(&format!("{:?}", JsonPathError::EmptyValue)));
+            return Err(JsValue::from_str(&format!(
+                "{:?}",
+                JsonPathError::EmptyValue
+            )));
         };
 
         match selector.delete() {
@@ -310,13 +326,19 @@ impl SelectorMut {
         if let Some(path) = &self.path {
             let _ = selector.str_path(path);
         } else {
-            return Err(JsValue::from_str(&format!("{:?}", JsonPathError::EmptyPath)));
+            return Err(JsValue::from_str(&format!(
+                "{:?}",
+                JsonPathError::EmptyPath
+            )));
         };
 
         if let Some(value) = self.value.take() {
             selector.value(value);
         } else {
-            return Err(JsValue::from_str(&format!("{:?}", JsonPathError::EmptyValue)));
+            return Err(JsValue::from_str(&format!(
+                "{:?}",
+                JsonPathError::EmptyValue
+            )));
         };
 
         match selector.replace_with(&mut |v| replace_fun(v, &fun)) {
@@ -333,9 +355,12 @@ impl SelectorMut {
         match self.value.take() {
             Some(ret) => match JsValue::from_serde(&ret) {
                 Ok(ret) => Ok(ret),
-                Err(e) => Err(JsValue::from_str(&format!("{:?}", e)))
+                Err(e) => Err(JsValue::from_str(&format!("{:?}", e))),
             },
-            None => Err(JsValue::from_str(&format!("{:?}", JsonPathError::EmptyValue)))
+            None => Err(JsValue::from_str(&format!(
+                "{:?}",
+                JsonPathError::EmptyValue
+            ))),
         }
     }
-}
+}

wasm/tests/package-lock.json

@@ -436,9 +436,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.11",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-      "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
+      "version": "4.17.14",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz",
+      "integrity": "sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==",
       "dev": true
     },
     "log-symbols": {

wasm/tests/test/index.spec.js

@@ -412,6 +412,79 @@ describe('filter test', () => {
             done();
         }
     });
+
+    it('escaped single quote notation', (done) => {
+        let result = jsonpath.select({"single'quote":"value"}, "$['single\\'quote']");
+        if (JSON.stringify(result) === JSON.stringify(["value"])) {
+            done();
+        }
+    });
+
+    it('escaped double quote notation', (done) => {
+        let result = jsonpath.select({"single\"quote":"value"}, "$['single\"quote']");
+        if (JSON.stringify(result) === JSON.stringify(["value"])) {
+            done();
+        }
+    });
+
+    it('array range with step - $[::]', (done) => {
+        let result = jsonpath.select(["first", "second", "third", "forth", "fifth"], "$[::]");
+        if (JSON.stringify(result) === JSON.stringify(["first", "second", "third", "forth", "fifth"])) {
+            done();
+        }
+    });
+
+    it('array range with step - $[::2]', (done) => {
+        let result = jsonpath.select(["first", "second", "third", "forth", "fifth"], "$[::2]");
+        if (JSON.stringify(result) === JSON.stringify(["first", "third", "fifth"])) {
+            done();
+        }
+    });
+
+    it('array range with step - $[1: :]', (done) => {
+        let result = jsonpath.select(["first", "second", "third", "forth", "fifth"], "$[1: :]");
+        if (JSON.stringify(result) === JSON.stringify(["second", "third", "forth", "fifth"])) {
+            done();
+        }
+    });
+
+    it('array range with step - $[1:2:]', (done) => {
+        let result = jsonpath.select(["first", "second", "third", "forth", "fifth"], "$[1:2:]");
+        if (JSON.stringify(result) === JSON.stringify(["second"])) {
+            done();
+        }
+    });
+
+    it('array range with step - $[1::2]', (done) => {
+        let result = jsonpath.select(["first", "second", "third", "forth", "fifth"], "$[1::2]");
+        if (JSON.stringify(result) === JSON.stringify(["second", "forth"])) {
+            done();
+        }
+    });
+
+    it('array range with step - $[0:3:1]', (done) => {
+        let result = jsonpath.select(["first", "second", "third", "forth", "fifth"], "$[0:3:1]");
+        if (JSON.stringify(result) === JSON.stringify(["first", "second", "third"])) {
+            done();
+        }
+    });
+
+    it('array range with step - $[0:3:2]', (done) => {
+        let result = jsonpath.select(["first", "second", "third", "forth", "fifth"], "$[0:3:2]");
+        if (JSON.stringify(result) === JSON.stringify(["first", "third"])) {
+            done();
+        }
+    });
+
+    it('array keys', (done) => {
+        let result = jsonpath.select({
+            "key1": "value1",
+            "key2": 2
+        }, "$['key1', 'key2']");
+        if (JSON.stringify(result) === JSON.stringify(["value1", 2])) {
+            done();
+        }
+    });
 });
 
 describe('SelectorMut test', () => {
@@ -821,4 +894,45 @@ describe('README test', () => {
             done();
         }
     });
+});
+
+describe('ISSUE test', () => {
+    it('Results do not match other implementations #6', (done) => {
+        let result = jsonpath.select(["first", "second"], "$[:]");
+        if (JSON.stringify(result) === JSON.stringify(["first", "second"])) {
+            done();
+        }
+    });
+
+    it('Invalid wildcard filter results #7', (done) => {
+
+        function select(json, expected, paths) {
+            for (var i = 0 ; i < paths.length ; i++) {
+                let result = jsonpath.select(json, paths[i]);
+                if (JSON.stringify(result) !== JSON.stringify(expected)) {
+                    throw Error("Error: " + paths[i]);
+                }
+            }
+        }
+
+        select(
+            ["string", 42, { "key": "value" }, [0, 1]],
+            ["string", 42, { "key": "value" }, [0, 1]],
+            ["$.*", "$[*]"]
+        );
+
+        select(
+            ["string", 42, { "key": "value" }, [0, 1]],
+            [ "string", 42, { "key" : "value" }, [ 0, 1 ], "value", 0, 1 ],
+            ["$..*", "$..[*]"]
+        );
+
+        select(
+            ["string", 42, { "key": "value" }, [0, 1]],
+            ["value", 0, 1],
+            ["$.*.*", "$[*].*", "$.*[*]", "$[*][*]"]
+        );
+
+        done();
+    });
 });

wasm/www/package-lock.json

@@ -3171,9 +3171,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.11",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.11.tgz",
-      "integrity": "sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==",
+      "version": "4.17.14",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.14.tgz",
+      "integrity": "sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==",
       "dev": true
     },
     "lodash.debounce": {
@@ -3402,9 +3402,9 @@
       }
     },
     "mixin-deep": {
-      "version": "1.3.1",
-      "resolved": "https://registry.npmjs.org/mixin-deep/-/mixin-deep-1.3.1.tgz",
-      "integrity": "sha512-8ZItLHeEgaqEvd5lYBXfm4EZSFCX29Jb9K+lAHhDKzReKBQKj3R+7NOF6tjqYi9t4oI8VUfaWITJQm86wnXGNQ==",
+      "version": "1.3.2",
+      "resolved": "https://registry.npmjs.org/mixin-deep/-/mixin-deep-1.3.2.tgz",
+      "integrity": "sha512-WRoDn//mXBiJ1H40rqa3vH0toePwSsGb45iInWlTySa+Uu4k3tYUSxa2v1KqAiLtvlrSzaExqS1gtk96A9zvEA==",
       "dev": true,
       "requires": {
         "for-in": "^1.0.2",
@@ -4335,9 +4335,9 @@
       "dev": true
     },
     "set-value": {
-      "version": "2.0.0",
-      "resolved": "https://registry.npmjs.org/set-value/-/set-value-2.0.0.tgz",
-      "integrity": "sha512-hw0yxk9GT/Hr5yJEYnHNKYXkIA8mVJgd9ditYZCe16ZczcaELYYcfvaXesNACk2O8O0nTiPQcQhGUQj8JLzeeg==",
+      "version": "2.0.1",
+      "resolved": "https://registry.npmjs.org/set-value/-/set-value-2.0.1.tgz",
+      "integrity": "sha512-JxHc1weCN68wRY0fhCoXpyK55m/XPHafOmK4UWD7m2CI14GMcFypt4w/0+NV5f/ZMby2F6S2wwA7fgynh9gWSw==",
       "dev": true,
       "requires": {
         "extend-shallow": "^2.0.1",
@@ -4939,38 +4939,15 @@
       "dev": true
     },
     "union-value": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.0.tgz",
-      "integrity": "sha1-XHHDTLW61dzr4+oM0IIHulqhrqQ=",
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/union-value/-/union-value-1.0.1.tgz",
+      "integrity": "sha512-tJfXmxMeWYnczCVs7XAEvIV7ieppALdyepWMkHkwciRpZraG/xwT+s2JN8+pr1+8jCRf80FFzvr+MpQeeoF4Xg==",
       "dev": true,
       "requires": {
         "arr-union": "^3.1.0",
         "get-value": "^2.0.6",
         "is-extendable": "^0.1.1",
-        "set-value": "^0.4.3"
-      },
-      "dependencies": {
-        "extend-shallow": {
-          "version": "2.0.1",
-          "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
-          "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
-          "dev": true,
-          "requires": {
-            "is-extendable": "^0.1.0"
-          }
-        },
-        "set-value": {
-          "version": "0.4.3",
-          "resolved": "https://registry.npmjs.org/set-value/-/set-value-0.4.3.tgz",
-          "integrity": "sha1-fbCPnT0i3H945Trzw79GZuzfzPE=",
-          "dev": true,
-          "requires": {
-            "extend-shallow": "^2.0.1",
-            "is-extendable": "^0.1.1",
-            "is-plain-object": "^2.0.1",
-            "to-object-path": "^0.3.0"
-          }
-        }
+        "set-value": "^2.0.1"
       }
     },
     "unique-filename": {

wasm/www_bench/package-lock.json

@@ -488,12 +488,6 @@
       "integrity": "sha512-EgmjVLMn22z7eGGv3kcnHwSnJXmFHjISTY9E/S5lIcTD3Oxw05QTcBLNkJFzcb3cNueUdF/IN4U+d78V0zO8Hw==",
       "dev": true
     },
-    "bluebird": {
-      "version": "3.5.3",
-      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.3.tgz",
-      "integrity": "sha512-/qKPUQlaW1OyR51WeCPBvRnAlnZFUJkCSG5HzGnuIqhgyJtF+T94lFnn33eiazjRm2LAHVy2guNnaq48X9SJuw==",
-      "dev": true
-    },
     "bn.js": {
       "version": "4.11.8",
       "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.8.tgz",
@@ -689,28 +683,6 @@
       "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg=",
       "dev": true
     },
-    "cacache": {
-      "version": "11.3.2",
-      "resolved": "https://registry.npmjs.org/cacache/-/cacache-11.3.2.tgz",
-      "integrity": "sha512-E0zP4EPGDOaT2chM08Als91eYnf8Z+eH1awwwVsngUmgppfM5jjJ8l3z5vO5p5w/I3LsiXawb1sW0VY65pQABg==",
-      "dev": true,
-      "requires": {
-        "bluebird": "^3.5.3",
-        "chownr": "^1.1.1",
-        "figgy-pudding": "^3.5.1",
-        "glob": "^7.1.3",
-        "graceful-fs": "^4.1.15",
-        "lru-cache": "^5.1.1",
-        "mississippi": "^3.0.0",
-        "mkdirp": "^0.5.1",
-        "move-concurrently": "^1.0.1",
-        "promise-inflight": "^1.0.1",
-        "rimraf": "^2.6.2",
-        "ssri": "^6.0.1",
-        "unique-filename": "^1.1.1",
-        "y18n": "^4.0.0"
-      }
-    },
     "cache-base": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/cache-base/-/cache-base-1.0.1.tgz",
@@ -865,12 +837,6 @@
       "resolved": "https://registry.npmjs.org/colors/-/colors-0.5.1.tgz",
       "integrity": "sha1-fQAj6usVTo7p/Oddy5I9DtFmd3Q="
     },
-    "commander": {
-      "version": "2.17.1",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.17.1.tgz",
-      "integrity": "sha512-wPMUt6FnH2yzG95SA6mzjQOEKUU3aLaDEmzs1ti+1E9h+CsrZghRlqEM/EJ4KscsQVG8uNN4uVreUeT8+drlgg==",
-      "dev": true
-    },
     "commondir": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/commondir/-/commondir-1.0.1.tgz",
@@ -991,21 +957,119 @@
       "dev": true
     },
     "copy-webpack-plugin": {
-      "version": "5.0.0",
-      "resolved": "https://registry.npmjs.org/copy-webpack-plugin/-/copy-webpack-plugin-5.0.0.tgz",
-      "integrity": "sha512-iiDj+8nnZeW/i8vYJ3+ABSZkOefJnDYIGLojiZKKFDvf1wcEInABXH1+hN7axQMn04qvJxKjgVOee0e14XPtCg==",
+      "version": "5.1.1",
+      "resolved": "https://registry.npmjs.org/copy-webpack-plugin/-/copy-webpack-plugin-5.1.1.tgz",
+      "integrity": "sha512-P15M5ZC8dyCjQHWwd4Ia/dm0SgVvZJMYeykVIVYXbGyqO4dWB5oyPHp9i7wjwo5LhtlhKbiBCdS2NvM07Wlybg==",
       "dev": true,
       "requires": {
-        "cacache": "^11.3.1",
-        "find-cache-dir": "^2.0.0",
+        "cacache": "^12.0.3",
+        "find-cache-dir": "^2.1.0",
+        "glob-parent": "^3.1.0",
         "globby": "^7.1.1",
-        "is-glob": "^4.0.0",
-        "loader-utils": "^1.1.0",
+        "is-glob": "^4.0.1",
+        "loader-utils": "^1.2.3",
         "minimatch": "^3.0.4",
         "normalize-path": "^3.0.0",
-        "p-limit": "^2.1.0",
-        "serialize-javascript": "^1.4.0",
+        "p-limit": "^2.2.1",
+        "schema-utils": "^1.0.0",
+        "serialize-javascript": "^2.1.2",
         "webpack-log": "^2.0.0"
+      },
+      "dependencies": {
+        "bluebird": {
+          "version": "3.7.2",
+          "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.7.2.tgz",
+          "integrity": "sha512-XpNj6GDQzdfW+r2Wnn7xiSAd7TM3jzkxGXBGTtWKuSXv1xUV+azxAm8jdWZN06QTQk+2N2XB9jRDkvbmQmcRtg==",
+          "dev": true
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-          "resolved": "https://registry.npmjs.org/extend-shallow/-/extend-shallow-2.0.1.tgz",
-          "integrity": "sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=",
-          "dev": true,
-          "requires": {
-            "is-extendable": "^0.1.0"
-          }
-        },
-        "set-value": {
-          "version": "0.4.3",
-          "resolved": "https://registry.npmjs.org/set-value/-/set-value-0.4.3.tgz",
-          "integrity": "sha1-fbCPnT0i3H945Trzw79GZuzfzPE=",
-          "dev": true,
-          "requires": {
-            "extend-shallow": "^2.0.1",
-            "is-extendable": "^0.1.1",
-            "is-plain-object": "^2.0.1",
-            "to-object-path": "^0.3.0"
-          }
-        }
+        "set-value": "^2.0.1"
       }
     },
     "unique-filename": {
@@ -5454,15 +5561,6 @@
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
       "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus="
     },
-    "worker-farm": {
-      "version": "1.6.0",
-      "resolved": "https://registry.npmjs.org/worker-farm/-/worker-farm-1.6.0.tgz",
-      "integrity": "sha512-6w+3tHbM87WnSWnENBUvA2pxJPLhQUg5LKwUQHq3r+XPhIM+Gh2R5ycbwPCyuGbNg+lPgdcnQUhuC02kJCvffQ==",
-      "dev": true,
-      "requires": {
-        "errno": "~0.1.7"
-      }
-    },
     "wrap-ansi": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",

wasm/www_bench/package.json

@@ -7,7 +7,7 @@
     "start": "webpack-dev-server"
   },
   "devDependencies": {
-    "copy-webpack-plugin": "^5.0.0",
+    "copy-webpack-plugin": "^5.1.1",
     "webpack": "^4.29.6",
     "webpack-cli": "^3.1.0",
     "webpack-dev-server": "^3.1.5"