| [6a3a178] | 1 | # range-parser
|
|---|
| 2 |
|
|---|
| 3 | [![NPM Version][npm-version-image]][npm-url]
|
|---|
| 4 | [![NPM Downloads][npm-downloads-image]][npm-url]
|
|---|
| 5 | [![Node.js Version][node-image]][node-url]
|
|---|
| 6 | [![Build Status][travis-image]][travis-url]
|
|---|
| 7 | [![Test Coverage][coveralls-image]][coveralls-url]
|
|---|
| 8 |
|
|---|
| 9 | Range header field parser.
|
|---|
| 10 |
|
|---|
| 11 | ## Installation
|
|---|
| 12 |
|
|---|
| 13 | This is a [Node.js](https://nodejs.org/en/) module available through the
|
|---|
| 14 | [npm registry](https://www.npmjs.com/). Installation is done using the
|
|---|
| 15 | [`npm install` command](https://docs.npmjs.com/getting-started/installing-npm-packages-locally):
|
|---|
| 16 |
|
|---|
| 17 | ```sh
|
|---|
| 18 | $ npm install range-parser
|
|---|
| 19 | ```
|
|---|
| 20 |
|
|---|
| 21 | ## API
|
|---|
| 22 |
|
|---|
| 23 | <!-- eslint-disable no-unused-vars -->
|
|---|
| 24 |
|
|---|
| 25 | ```js
|
|---|
| 26 | var parseRange = require('range-parser')
|
|---|
| 27 | ```
|
|---|
| 28 |
|
|---|
| 29 | ### parseRange(size, header, options)
|
|---|
| 30 |
|
|---|
| 31 | Parse the given `header` string where `size` is the maximum size of the resource.
|
|---|
| 32 | An array of ranges will be returned or negative numbers indicating an error parsing.
|
|---|
| 33 |
|
|---|
| 34 | * `-2` signals a malformed header string
|
|---|
| 35 | * `-1` signals an unsatisfiable range
|
|---|
| 36 |
|
|---|
| 37 | <!-- eslint-disable no-undef -->
|
|---|
| 38 |
|
|---|
| 39 | ```js
|
|---|
| 40 | // parse header from request
|
|---|
| 41 | var range = parseRange(size, req.headers.range)
|
|---|
| 42 |
|
|---|
| 43 | // the type of the range
|
|---|
| 44 | if (range.type === 'bytes') {
|
|---|
| 45 | // the ranges
|
|---|
| 46 | range.forEach(function (r) {
|
|---|
| 47 | // do something with r.start and r.end
|
|---|
| 48 | })
|
|---|
| 49 | }
|
|---|
| 50 | ```
|
|---|
| 51 |
|
|---|
| 52 | #### Options
|
|---|
| 53 |
|
|---|
| 54 | These properties are accepted in the options object.
|
|---|
| 55 |
|
|---|
| 56 | ##### combine
|
|---|
| 57 |
|
|---|
| 58 | Specifies if overlapping & adjacent ranges should be combined, defaults to `false`.
|
|---|
| 59 | When `true`, ranges will be combined and returned as if they were specified that
|
|---|
| 60 | way in the header.
|
|---|
| 61 |
|
|---|
| 62 | <!-- eslint-disable no-undef -->
|
|---|
| 63 |
|
|---|
| 64 | ```js
|
|---|
| 65 | parseRange(100, 'bytes=50-55,0-10,5-10,56-60', { combine: true })
|
|---|
| 66 | // => [
|
|---|
| 67 | // { start: 0, end: 10 },
|
|---|
| 68 | // { start: 50, end: 60 }
|
|---|
| 69 | // ]
|
|---|
| 70 | ```
|
|---|
| 71 |
|
|---|
| 72 | ## License
|
|---|
| 73 |
|
|---|
| 74 | [MIT](LICENSE)
|
|---|
| 75 |
|
|---|
| 76 | [coveralls-image]: https://badgen.net/coveralls/c/github/jshttp/range-parser/master
|
|---|
| 77 | [coveralls-url]: https://coveralls.io/r/jshttp/range-parser?branch=master
|
|---|
| 78 | [node-image]: https://badgen.net/npm/node/range-parser
|
|---|
| 79 | [node-url]: https://nodejs.org/en/download
|
|---|
| 80 | [npm-downloads-image]: https://badgen.net/npm/dm/range-parser
|
|---|
| 81 | [npm-url]: https://npmjs.org/package/range-parser
|
|---|
| 82 | [npm-version-image]: https://badgen.net/npm/v/range-parser
|
|---|
| 83 | [travis-image]: https://badgen.net/travis/jshttp/range-parser/master
|
|---|
| 84 | [travis-url]: https://travis-ci.org/jshttp/range-parser
|
|---|
