Range header field string parser
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Range header field parser.
This is a Node.js module available through the
npm registry. Installation is done using thenpm install command:
``sh`
$ npm install range-parser
`js`
var parseRange = require('range-parser')
Parse the given header string where size is the maximum size of the resource.
An array of ranges will be returned or negative numbers indicating an error parsing.
* -2 signals a malformed header string-1
* signals an unsatisfiable range
`js
// parse header from request
var range = parseRange(size, req.headers.range)
// the type of the range
if (range.type === 'bytes') {
// the ranges
range.forEach(function (r) {
// do something with r.start and r.end
})
}
`
#### Options
These properties are accepted in the options object.
##### combine
Specifies if overlapping & adjacent ranges should be combined, defaults to false.true
When , ranges will be combined and returned as if they were specified that
way in the header.
`js``
parseRange(100, 'bytes=50-55,0-10,5-10,56-60', { combine: true })
// => [
// { start: 0, end: 10 },
// { start: 50, end: 60 }
// ]
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[npm-url]: https://npmjs.org/package/range-parser
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