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166 lines
6.5 KiB
Markdown
166 lines
6.5 KiB
Markdown
[![NPM version][npm-image]][npm-url]
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[![build status][travis-image]][travis-url]
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[![Test coverage][coveralls-image]][coveralls-url]
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[![Downloads][downloads-image]][downloads-url]
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[](https://gitter.im/eslint/doctrine?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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# Doctrine
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Doctrine is a [JSDoc](http://usejsdoc.org) parser that parses documentation comments from JavaScript (you need to pass in the comment, not a whole JavaScript file).
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## Installation
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You can install Doctrine using [npm](https://npmjs.com):
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```
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$ npm install doctrine --save-dev
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```
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Doctrine can also be used in web browsers using [Browserify](http://browserify.org).
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## Usage
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Require doctrine inside of your JavaScript:
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```js
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var doctrine = require("doctrine");
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```
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### parse()
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The primary method is `parse()`, which accepts two arguments: the JSDoc comment to parse and an optional options object. The available options are:
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* `unwrap` - set to `true` to delete the leading `/**`, any `*` that begins a line, and the trailing `*/` from the source text. Default: `false`.
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* `tags` - an array of tags to return. When specified, Doctrine returns only tags in this array. For example, if `tags` is `["param"]`, then only `@param` tags will be returned. Default: `null`.
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* `recoverable` - set to `true` to keep parsing even when syntax errors occur. Default: `false`.
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* `sloppy` - set to `true` to allow optional parameters to be specified in brackets (`@param {string} [foo]`). Default: `false`.
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* `lineNumbers` - set to `true` to add `lineNumber` to each node, specifying the line on which the node is found in the source. Default: `false`.
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* `range` - set to `true` to add `range` to each node, specifying the start and end index of the node in the original comment. Default: `false`.
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Here's a simple example:
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```js
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var ast = doctrine.parse(
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[
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"/**",
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" * This function comment is parsed by doctrine",
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" * @param {{ok:String}} userName",
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"*/"
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].join('\n'), { unwrap: true });
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```
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This example returns the following AST:
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{
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"description": "This function comment is parsed by doctrine",
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"tags": [
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{
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"title": "param",
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"description": null,
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"type": {
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"type": "RecordType",
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"fields": [
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{
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"type": "FieldType",
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"key": "ok",
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"value": {
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"type": "NameExpression",
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"name": "String"
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}
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}
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]
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},
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"name": "userName"
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}
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]
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}
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See the [demo page](http://eslint.org/doctrine/demo/) more detail.
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## Team
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These folks keep the project moving and are resources for help:
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* Nicholas C. Zakas ([@nzakas](https://github.com/nzakas)) - project lead
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* Yusuke Suzuki ([@constellation](https://github.com/constellation)) - reviewer
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## Contributing
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Issues and pull requests will be triaged and responded to as quickly as possible. We operate under the [ESLint Contributor Guidelines](http://eslint.org/docs/developer-guide/contributing), so please be sure to read them before contributing. If you're not sure where to dig in, check out the [issues](https://github.com/eslint/doctrine/issues).
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## Frequently Asked Questions
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### Can I pass a whole JavaScript file to Doctrine?
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No. Doctrine can only parse JSDoc comments, so you'll need to pass just the JSDoc comment to Doctrine in order to work.
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### License
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#### doctrine
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Copyright JS Foundation and other contributors, https://js.foundation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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#### esprima
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some of functions is derived from esprima
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Copyright (C) 2012, 2011 [Ariya Hidayat](http://ariya.ofilabs.com/about)
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(twitter: [@ariyahidayat](http://twitter.com/ariyahidayat)) and other contributors.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#### closure-compiler
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some of extensions is derived from closure-compiler
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Apache License
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Version 2.0, January 2004
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http://www.apache.org/licenses/
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### Where to ask for help?
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Join our [Chatroom](https://gitter.im/eslint/doctrine)
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[npm-image]: https://img.shields.io/npm/v/doctrine.svg?style=flat-square
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[npm-url]: https://www.npmjs.com/package/doctrine
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[travis-image]: https://img.shields.io/travis/eslint/doctrine/master.svg?style=flat-square
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[travis-url]: https://travis-ci.org/eslint/doctrine
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[coveralls-image]: https://img.shields.io/coveralls/eslint/doctrine/master.svg?style=flat-square
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[coveralls-url]: https://coveralls.io/r/eslint/doctrine?branch=master
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[downloads-image]: http://img.shields.io/npm/dm/doctrine.svg?style=flat-square
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[downloads-url]: https://www.npmjs.com/package/doctrine
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