mirror of
https://github.com/S2-/minifyfromhtml.git
synced 2025-08-03 20:30:04 +02:00
add some packages
This commit is contained in:
286
node_modules/json5/README.md
generated
vendored
Normal file
286
node_modules/json5/README.md
generated
vendored
Normal file
@@ -0,0 +1,286 @@
|
||||
# JSON5 – Modern JSON
|
||||
|
||||
[](https://travis-ci.org/json5/json5)
|
||||
|
||||
JSON is an excellent data format, but we think it can be better.
|
||||
|
||||
**JSON5 is a proposed extension to JSON** that aims to make it easier for
|
||||
*humans to write and maintain* by hand. It does this by adding some minimal
|
||||
syntax features directly from ECMAScript 5.
|
||||
|
||||
JSON5 remains a **strict subset of JavaScript**, adds **no new data types**,
|
||||
and **works with all existing JSON content**.
|
||||
|
||||
JSON5 is *not* an official successor to JSON, and JSON5 content may *not*
|
||||
work with existing JSON parsers. For this reason, JSON5 files use a new .json5
|
||||
extension. *(TODO: new MIME type needed too.)*
|
||||
|
||||
The code here is a **reference JavaScript implementation** for both Node.js
|
||||
and all browsers. It’s based directly off of Douglas Crockford’s own [JSON
|
||||
implementation][json_parse.js], and it’s both robust and secure.
|
||||
|
||||
|
||||
## Why
|
||||
|
||||
JSON isn’t the friendliest to *write*. Keys need to be quoted, objects and
|
||||
arrays can’t have trailing commas, and comments aren’t allowed — even though
|
||||
none of these are the case with regular JavaScript today.
|
||||
|
||||
That was fine when JSON’s goal was to be a great data format, but JSON’s usage
|
||||
has expanded beyond *machines*. JSON is now used for writing [configs][ex1],
|
||||
[manifests][ex2], even [tests][ex3] — all by *humans*.
|
||||
|
||||
[ex1]: http://plovr.com/docs.html
|
||||
[ex2]: https://www.npmjs.org/doc/files/package.json.html
|
||||
[ex3]: http://code.google.com/p/fuzztester/wiki/JSONFileFormat
|
||||
|
||||
There are other formats that are human-friendlier, like YAML, but changing
|
||||
from JSON to a completely different format is undesirable in many cases.
|
||||
JSON5’s aim is to remain close to JSON and JavaScript.
|
||||
|
||||
|
||||
## Features
|
||||
|
||||
The following is the exact list of additions to JSON’s syntax introduced by
|
||||
JSON5. **All of these are optional**, and **all of these come from ES5**.
|
||||
|
||||
### Objects
|
||||
|
||||
- Object keys can be unquoted if they’re valid [identifiers][mdn_variables].
|
||||
Yes, even reserved keywords (like `default`) are valid unquoted keys in ES5
|
||||
[[§11.1.5](http://es5.github.com/#x11.1.5), [§7.6](http://es5.github.com/#x7.6)].
|
||||
([More info](https://mathiasbynens.be/notes/javascript-identifiers))
|
||||
|
||||
*(TODO: Unicode characters and escape sequences aren’t yet supported in this
|
||||
implementation.)*
|
||||
|
||||
- Object keys can also be single-quoted.
|
||||
|
||||
- Objects can have trailing commas.
|
||||
|
||||
[mdn_variables]: https://developer.mozilla.org/en/Core_JavaScript_1.5_Guide/Core_Language_Features#Variables
|
||||
|
||||
### Arrays
|
||||
|
||||
- Arrays can have trailing commas.
|
||||
|
||||
### Strings
|
||||
|
||||
- Strings can be single-quoted.
|
||||
|
||||
- Strings can be split across multiple lines; just prefix each newline with a
|
||||
backslash. [ES5 [§7.8.4](http://es5.github.com/#x7.8.4)]
|
||||
|
||||
### Numbers
|
||||
|
||||
- Numbers can be hexadecimal (base 16).
|
||||
|
||||
- Numbers can begin or end with a (leading or trailing) decimal point.
|
||||
|
||||
- Numbers can include `Infinity`, `-Infinity`, `NaN`, and `-NaN`.
|
||||
|
||||
- Numbers can begin with an explicit plus sign.
|
||||
|
||||
### Comments
|
||||
|
||||
- Both inline (single-line) and block (multi-line) comments are allowed.
|
||||
|
||||
|
||||
## Example
|
||||
|
||||
The following is a contrived example, but it illustrates most of the features:
|
||||
|
||||
```js
|
||||
{
|
||||
foo: 'bar',
|
||||
while: true,
|
||||
|
||||
this: 'is a \
|
||||
multi-line string',
|
||||
|
||||
// this is an inline comment
|
||||
here: 'is another', // inline comment
|
||||
|
||||
/* this is a block comment
|
||||
that continues on another line */
|
||||
|
||||
hex: 0xDEADbeef,
|
||||
half: .5,
|
||||
delta: +10,
|
||||
to: Infinity, // and beyond!
|
||||
|
||||
finally: 'a trailing comma',
|
||||
oh: [
|
||||
"we shouldn't forget",
|
||||
'arrays can have',
|
||||
'trailing commas too',
|
||||
],
|
||||
}
|
||||
```
|
||||
|
||||
This implementation’s own [package.json5](package.json5) is more realistic:
|
||||
|
||||
```js
|
||||
// This file is written in JSON5 syntax, naturally, but npm needs a regular
|
||||
// JSON file, so compile via `npm run build`. Be sure to keep both in sync!
|
||||
|
||||
{
|
||||
name: 'json5',
|
||||
version: '0.5.0',
|
||||
description: 'JSON for the ES5 era.',
|
||||
keywords: ['json', 'es5'],
|
||||
author: 'Aseem Kishore <aseem.kishore@gmail.com>',
|
||||
contributors: [
|
||||
// TODO: Should we remove this section in favor of GitHub's list?
|
||||
// https://github.com/aseemk/json5/contributors
|
||||
'Max Nanasy <max.nanasy@gmail.com>',
|
||||
'Andrew Eisenberg <andrew@eisenberg.as>',
|
||||
'Jordan Tucker <jordanbtucker@gmail.com>',
|
||||
],
|
||||
main: 'lib/json5.js',
|
||||
bin: 'lib/cli.js',
|
||||
files: ["lib/"],
|
||||
dependencies: {},
|
||||
devDependencies: {
|
||||
gulp: "^3.9.1",
|
||||
'gulp-jshint': "^2.0.0",
|
||||
jshint: "^2.9.1",
|
||||
'jshint-stylish': "^2.1.0",
|
||||
mocha: "^2.4.5"
|
||||
},
|
||||
scripts: {
|
||||
build: 'node ./lib/cli.js -c package.json5',
|
||||
test: 'mocha --ui exports --reporter spec',
|
||||
// TODO: Would it be better to define these in a mocha.opts file?
|
||||
},
|
||||
homepage: 'http://json5.org/',
|
||||
license: 'MIT',
|
||||
repository: {
|
||||
type: 'git',
|
||||
url: 'https://github.com/aseemk/json5.git',
|
||||
},
|
||||
}
|
||||
```
|
||||
|
||||
|
||||
## Community
|
||||
|
||||
Join the [Google Group](http://groups.google.com/group/json5) if you’re
|
||||
interested in JSON5 news, updates, and general discussion.
|
||||
Don’t worry, it’s very low-traffic.
|
||||
|
||||
The [GitHub wiki](https://github.com/aseemk/json5/wiki) is a good place to track
|
||||
JSON5 support and usage. Contribute freely there!
|
||||
|
||||
[GitHub Issues](https://github.com/aseemk/json5/issues) is the place to
|
||||
formally propose feature requests and report bugs. Questions and general
|
||||
feedback are better directed at the Google Group.
|
||||
|
||||
|
||||
## Usage
|
||||
|
||||
This JavaScript implementation of JSON5 simply provides a `JSON5` object just
|
||||
like the native ES5 `JSON` object.
|
||||
|
||||
To use from Node:
|
||||
|
||||
```sh
|
||||
npm install json5
|
||||
```
|
||||
|
||||
```js
|
||||
var JSON5 = require('json5');
|
||||
```
|
||||
|
||||
To use in the browser (adds the `JSON5` object to the global namespace):
|
||||
|
||||
```html
|
||||
<script src="json5.js"></script>
|
||||
```
|
||||
|
||||
Then in both cases, you can simply replace native `JSON` calls with `JSON5`:
|
||||
|
||||
```js
|
||||
var obj = JSON5.parse('{unquoted:"key",trailing:"comma",}');
|
||||
var str = JSON5.stringify(obj);
|
||||
```
|
||||
|
||||
`JSON5.parse` supports all of the JSON5 features listed above (*TODO: except
|
||||
Unicode*), as well as the native [`reviver` argument][json-parse].
|
||||
|
||||
[json-parse]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse
|
||||
|
||||
`JSON5.stringify` mainly avoids quoting keys where possible, but we hope to
|
||||
keep expanding it in the future (e.g. to also output trailing commas).
|
||||
It supports the native [`replacer` and `space` arguments][json-stringify],
|
||||
as well. *(TODO: Any implemented `toJSON` methods aren’t used today.)*
|
||||
|
||||
[json-stringify]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify
|
||||
|
||||
|
||||
### Extras
|
||||
|
||||
If you’re running this on Node, you can also register a JSON5 `require()` hook
|
||||
to let you `require()` `.json5` files just like you can `.json` files:
|
||||
|
||||
```js
|
||||
require('json5/lib/require');
|
||||
require('./path/to/foo'); // tries foo.json5 after foo.js, foo.json, etc.
|
||||
require('./path/to/bar.json5');
|
||||
```
|
||||
|
||||
This module also provides a `json5` executable (requires Node) for converting
|
||||
JSON5 files to JSON:
|
||||
|
||||
```sh
|
||||
json5 -c path/to/foo.json5 # generates path/to/foo.json
|
||||
```
|
||||
|
||||
|
||||
## Development
|
||||
|
||||
```sh
|
||||
git clone git://github.com/aseemk/json5.git
|
||||
cd json5
|
||||
npm install
|
||||
npm test
|
||||
```
|
||||
|
||||
As the `package.json5` file states, be sure to run `npm run build` on changes
|
||||
to `package.json5`, since npm requires `package.json`.
|
||||
|
||||
Feel free to [file issues](https://github.com/aseemk/json5/issues) and submit
|
||||
[pull requests](https://github.com/aseemk/json5/pulls) — contributions are
|
||||
welcome. If you do submit a pull request, please be sure to add or update the
|
||||
tests, and ensure that `npm test` continues to pass.
|
||||
|
||||
|
||||
## License
|
||||
|
||||
MIT. See [LICENSE.md](./LICENSE.md) for details.
|
||||
|
||||
|
||||
## Credits
|
||||
|
||||
[Michael Bolin](http://bolinfest.com/) independently arrived at and published
|
||||
some of these same ideas with awesome explanations and detail.
|
||||
Recommended reading:
|
||||
[Suggested Improvements to JSON](http://bolinfest.com/essays/json.html)
|
||||
|
||||
[Douglas Crockford](http://www.crockford.com/) of course designed and built
|
||||
JSON, but his state machine diagrams on the [JSON website](http://json.org/),
|
||||
as cheesy as it may sound, gave me motivation and confidence that building a
|
||||
new parser to implement these ideas this was within my reach!
|
||||
This code is also modeled directly off of Doug’s open-source [json_parse.js][]
|
||||
parser. I’m super grateful for that clean and well-documented code.
|
||||
|
||||
[json_parse.js]: https://github.com/douglascrockford/JSON-js/blob/master/json_parse.js
|
||||
|
||||
[Max Nanasy](https://github.com/MaxNanasy) has been an early and prolific
|
||||
supporter, contributing multiple patches and ideas. Thanks Max!
|
||||
|
||||
[Andrew Eisenberg](https://github.com/aeisenberg) has contributed the
|
||||
`stringify` method.
|
||||
|
||||
[Jordan Tucker](https://github.com/jordanbtucker) has aligned JSON5 more closely
|
||||
with ES5 and is actively maintaining this project.
|
||||
Reference in New Issue
Block a user