Initial commit

This commit is contained in:
WatermelonModders
2022-05-31 12:35:46 -04:00
commit fc5cb0c32c
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language: "node_js"
node_js:
- 0.10
- 0.11
- 0.12
- 4.0
- node
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The MIT License (MIT)
Copyright (c) 2011-2015 Jan Lehnardt <jan@apache.org> & Marc Bachmann <https://github.com/marcbachmann>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
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# JSON Pointer for nodejs
This is an implementation of [JSON Pointer](http://tools.ietf.org/html/draft-ietf-appsawg-json-pointer-08).
## Usage
```javascript
var jsonpointer = require('jsonpointer');
var obj = { foo: 1, bar: { baz: 2}, qux: [3, 4, 5]};
jsonpointer.get(obj, '/foo'); // returns 1
jsonpointer.get(obj, '/bar/baz'); // returns 2
jsonpointer.get(obj, '/qux/0'); // returns 3
jsonpointer.get(obj, '/qux/1'); // returns 4
jsonpointer.get(obj, '/qux/2'); // returns 5
jsonpointer.get(obj, '/quo'); // returns null
jsonpointer.set(obj, '/foo', 6); // sets obj.foo = 6;
jsonpointer.set(obj, '/qux/-', 6) // sets obj.qux = [3, 4, 5, 6]
var pointer = jsonpointer.compile('/foo')
pointer.get(obj) // returns 1
pointer.set(obj, 1) // sets obj.foo = 1
```
## Testing
$ node test.js
All tests pass.
$
[![Build Status](https://travis-ci.org/janl/node-jsonpointer.png?branch=master)](https://travis-ci.org/janl/node-jsonpointer)
## Author
(c) 2011-2015 Jan Lehnardt <jan@apache.org> & Marc Bachmann <https://github.com/marcbachmann>
## License
MIT License.
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var jsonpointer = require('./')
var i
var obj = {
a: 1,
b: {
c: 2
},
d: {
e: [{ a: 3 }, { b: 4 }, { c: 5 }]
}
}
// Get
console.time('get first level property')
for (i = 0; i < 1e6; i++) {
jsonpointer.get(obj, '/a')
}
console.timeEnd('get first level property')
console.time('get second level property')
for (i = 0; i < 1e6; i++) {
jsonpointer.get(obj, '/d/e')
}
console.timeEnd('get second level property')
console.time('get third level property')
for (i = 0; i < 1e6; i++) {
jsonpointer.get(obj, '/d/e/0')
}
console.timeEnd('get third level property')
// Set
console.time('set first level property')
for (i = 0; i < 1e6; i++) {
jsonpointer.set(obj, '/a', 'bla')
}
console.timeEnd('set first level property')
console.time('set second level property')
for (i = 0; i < 1e6; i++) {
jsonpointer.set(obj, '/d/e', 'bla')
}
console.timeEnd('set second level property')
console.time('set third level property')
for (i = 0; i < 1e6; i++) {
jsonpointer.set(obj, '/d/e/0', 'bla')
}
console.timeEnd('set third level property')
console.time('push property into array')
for (i = 0; i < 1e6; i++) {
jsonpointer.set(obj, '/d/e/-', 'bla')
}
console.timeEnd('push property into array')
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var hasExcape = /~/
var escapeMatcher = /~[01]/g
function escapeReplacer (m) {
switch (m) {
case '~1': return '/'
case '~0': return '~'
}
throw new Error('Invalid tilde escape: ' + m)
}
function untilde (str) {
if (!hasExcape.test(str)) return str
return str.replace(escapeMatcher, escapeReplacer)
}
function setter (obj, pointer, value) {
var part
var hasNextPart
for (var p = 1, len = pointer.length; p < len;) {
part = untilde(pointer[p++])
hasNextPart = len > p
if (typeof obj[part] === 'undefined') {
// support setting of /-
if (Array.isArray(obj) && part === '-') {
part = obj.length
}
// support nested objects/array when setting values
if (hasNextPart) {
if ((pointer[p] !== '' && pointer[p] < Infinity) || pointer[p] === '-') obj[part] = []
else obj[part] = {}
}
}
if (!hasNextPart) break
obj = obj[part]
}
var oldValue = obj[part]
if (value === undefined) delete obj[part]
else obj[part] = value
return oldValue
}
function compilePointer (pointer) {
if (typeof pointer === 'string') {
pointer = pointer.split('/')
if (pointer[0] === '') return pointer
throw new Error('Invalid JSON pointer.')
} else if (Array.isArray(pointer)) {
return pointer
}
throw new Error('Invalid JSON pointer.')
}
function get (obj, pointer) {
if (typeof obj !== 'object') throw new Error('Invalid input object.')
pointer = compilePointer(pointer)
var len = pointer.length
if (len === 1) return obj
for (var p = 1; p < len;) {
obj = obj[untilde(pointer[p++])]
if (len === p) return obj
if (typeof obj !== 'object') return undefined
}
}
function set (obj, pointer, value) {
if (typeof obj !== 'object') throw new Error('Invalid input object.')
pointer = compilePointer(pointer)
if (pointer.length === 0) throw new Error('Invalid JSON pointer for set.')
return setter(obj, pointer, value)
}
function compile (pointer) {
var compiled = compilePointer(pointer)
return {
get: function (object) {
return get(object, compiled)
},
set: function (object, value) {
return set(object, compiled, value)
}
}
}
exports.get = get
exports.set = set
exports.compile = compile
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{
"_args": [
[
"jsonpointer@^4.0.0",
"/home/xor/shared_vm/git/node-sunwell/node_modules/is-my-json-valid"
]
],
"_from": "jsonpointer@>=4.0.0 <5.0.0",
"_id": "jsonpointer@4.0.0",
"_inCache": true,
"_installable": true,
"_location": "/jsonpointer",
"_nodeVersion": "6.1.0",
"_npmOperationalInternal": {
"host": "packages-16-east.internal.npmjs.com",
"tmp": "tmp/jsonpointer-4.0.0.tgz_1463651460494_0.02921536797657609"
},
"_npmUser": {
"email": "marc.brookman@gmail.com",
"name": "marcbachmann"
},
"_npmVersion": "3.8.6",
"_phantomChildren": {},
"_requested": {
"name": "jsonpointer",
"raw": "jsonpointer@^4.0.0",
"rawSpec": "^4.0.0",
"scope": null,
"spec": ">=4.0.0 <5.0.0",
"type": "range"
},
"_requiredBy": [
"/is-my-json-valid"
],
"_resolved": "https://registry.npmjs.org/jsonpointer/-/jsonpointer-4.0.0.tgz",
"_shasum": "6661e161d2fc445f19f98430231343722e1fcbd5",
"_shrinkwrap": null,
"_spec": "jsonpointer@^4.0.0",
"_where": "/home/xor/shared_vm/git/node-sunwell/node_modules/is-my-json-valid",
"author": {
"email": "jan@apache.org",
"name": "Jan Lehnardt"
},
"bugs": {
"url": "http://github.com/janl/node-jsonpointer/issues"
},
"contributors": [
{
"name": "Joe Hildebrand",
"email": "joe-github@cursive.net"
},
{
"name": "Marc Bachmann",
"email": "marc.brookman@gmail.com"
}
],
"dependencies": {},
"description": "Simple JSON Addressing.",
"devDependencies": {
"standard": "^5.3.1"
},
"directories": {},
"dist": {
"shasum": "6661e161d2fc445f19f98430231343722e1fcbd5",
"tarball": "https://registry.npmjs.org/jsonpointer/-/jsonpointer-4.0.0.tgz"
},
"engines": {
"node": ">=0.10.0"
},
"gitHead": "2d46030ba6df41b566934c7202e31fb65058de71",
"homepage": "https://github.com/janl/node-jsonpointer#readme",
"license": "MIT",
"main": "./jsonpointer",
"maintainers": [
{
"name": "jan",
"email": "jan@apache.org"
},
{
"name": "marcbachmann",
"email": "marc.brookman@gmail.com"
}
],
"name": "jsonpointer",
"optionalDependencies": {},
"readme": "ERROR: No README data found!",
"repository": {
"type": "git",
"url": "git+ssh://git@github.com/janl/node-jsonpointer.git"
},
"scripts": {
"test": "standard && node test.js"
},
"tags": [
"simple",
"util",
"util",
"utility"
],
"version": "4.0.0"
}
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var assert = require('assert')
var jsonpointer = require('./jsonpointer')
var obj = {
a: 1,
b: {
c: 2
},
d: {
e: [{ a: 3 }, { b: 4 }, { c: 5 }]
}
}
assert.equal(jsonpointer.get(obj, '/a'), 1)
assert.equal(jsonpointer.get(obj, '/b/c'), 2)
assert.equal(jsonpointer.get(obj, '/d/e/0/a'), 3)
assert.equal(jsonpointer.get(obj, '/d/e/1/b'), 4)
assert.equal(jsonpointer.get(obj, '/d/e/2/c'), 5)
// set returns old value
assert.equal(jsonpointer.set(obj, '/a', 2), 1)
assert.equal(jsonpointer.set(obj, '/b/c', 3), 2)
assert.equal(jsonpointer.set(obj, '/d/e/0/a', 4), 3)
assert.equal(jsonpointer.set(obj, '/d/e/1/b', 5), 4)
assert.equal(jsonpointer.set(obj, '/d/e/2/c', 6), 5)
// set nested properties
assert.equal(jsonpointer.set(obj, '/f/g/h/i', 6), undefined)
assert.equal(jsonpointer.get(obj, '/f/g/h/i'), 6)
// set an array
assert.equal(jsonpointer.set(obj, '/f/g/h/foo/-', 'test'), undefined)
var arr = jsonpointer.get(obj, '/f/g/h/foo')
assert(Array.isArray(arr), 'set /- creates an array.')
assert.equal(arr[0], 'test')
assert.equal(jsonpointer.get(obj, '/a'), 2)
assert.equal(jsonpointer.get(obj, '/b/c'), 3)
assert.equal(jsonpointer.get(obj, '/d/e/0/a'), 4)
assert.equal(jsonpointer.get(obj, '/d/e/1/b'), 5)
assert.equal(jsonpointer.get(obj, '/d/e/2/c'), 6)
// can set `null` as a value
assert.equal(jsonpointer.set(obj, '/f/g/h/foo/0', null), 'test')
assert.strictEqual(jsonpointer.get(obj, '/f/g/h/foo/0'), null)
assert.equal(jsonpointer.set(obj, '/b/c', null), 3)
assert.strictEqual(jsonpointer.get(obj, '/b/c'), null)
assert.equal(jsonpointer.get(obj, ''), obj)
assert.throws(function () { jsonpointer.get(obj, 'a') }, validateError)
assert.throws(function () { jsonpointer.get(obj, 'a/') }, validateError)
// can unset values with `undefined`
jsonpointer.set(obj, '/a', undefined)
assert.strictEqual(jsonpointer.get(obj, '/a'), undefined)
jsonpointer.set(obj, '/d/e/1', undefined)
assert.strictEqual(jsonpointer.get(obj, '/d/e/1'), undefined)
// returns `undefined` when path extends beyond any existing objects
assert.strictEqual(jsonpointer.get(obj, '/x/y/z'), undefined)
function validateError (err) {
if ((err instanceof Error) && /Invalid JSON pointer/.test(err.message)) {
return true
}
}
var complexKeys = {
'a/b': {
c: 1
},
d: {
'e/f': 2
},
'~1': 3,
'01': 4
}
assert.equal(jsonpointer.get(complexKeys, '/a~1b/c'), 1)
assert.equal(jsonpointer.get(complexKeys, '/d/e~1f'), 2)
assert.equal(jsonpointer.get(complexKeys, '/~01'), 3)
assert.equal(jsonpointer.get(complexKeys, '/01'), 4)
assert.equal(jsonpointer.get(complexKeys, '/a/b/c'), null)
assert.equal(jsonpointer.get(complexKeys, '/~1'), null)
// draft-ietf-appsawg-json-pointer-08 has special array rules
var ary = [ 'zero', 'one', 'two' ]
assert.equal(jsonpointer.get(ary, '/01'), null)
assert.equal(jsonpointer.set(ary, '/-', 'three'), null)
assert.equal(ary[3], 'three')
// Examples from the draft:
var example = {
'foo': ['bar', 'baz'],
'': 0,
'a/b': 1,
'c%d': 2,
'e^f': 3,
'g|h': 4,
'i\\j': 5,
'k\'l': 6,
' ': 7,
'm~n': 8
}
assert.equal(jsonpointer.get(example, ''), example)
var ans = jsonpointer.get(example, '/foo')
assert.equal(ans.length, 2)
assert.equal(ans[0], 'bar')
assert.equal(ans[1], 'baz')
assert.equal(jsonpointer.get(example, '/foo/0'), 'bar')
assert.equal(jsonpointer.get(example, '/'), 0)
assert.equal(jsonpointer.get(example, '/a~1b'), 1)
assert.equal(jsonpointer.get(example, '/c%d'), 2)
assert.equal(jsonpointer.get(example, '/e^f'), 3)
assert.equal(jsonpointer.get(example, '/g|h'), 4)
assert.equal(jsonpointer.get(example, '/i\\j'), 5)
assert.equal(jsonpointer.get(example, '/k\'l'), 6)
assert.equal(jsonpointer.get(example, '/ '), 7)
assert.equal(jsonpointer.get(example, '/m~0n'), 8)
// jsonpointer.compile(path)
var a = {foo: 'bar'}
var pointer = jsonpointer.compile('/foo')
assert.equal(pointer.get(a), 'bar')
assert.equal(pointer.set(a, 'test'), 'bar')
assert.equal(pointer.get(a), 'test')
assert.deepEqual(a, {foo: 'test'})
console.log('All tests pass.')