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# mdurl
[](https://travis-ci.org/markdown-it/mdurl)
[](https://www.npmjs.org/package/mdurl)
> URL utilities for [markdown-it](https://github.com/markdown-it/markdown-it) parser.
## API
### .encode(str [, exclude, keepEncoded]) -> String
Percent-encode a string, avoiding double encoding. Don't touch `/a-zA-Z0-9/` +
excluded chars + `/%[a-fA-F0-9]{2}/` (if not disabled). Broken surrorates are
replaced with `U+FFFD`.
Params:
- __str__ - input string.
- __exclude__ - optional, `;/?:@&=+$,-_.!~*'()#`. Additional chars to keep intact
(except `/a-zA-Z0-9/`).
- __keepEncoded__ - optional, `true`. By default it skips already encoded sequences
(`/%[a-fA-F0-9]{2}/`). If set to `false`, `%` will be encoded.
### encode.defaultChars, encode.componentChars
You can use these constants as second argument to `encode` function.
- `encode.defaultChars` is the same exclude set as in the standard `encodeURI()` function
- `encode.componentChars` is the same exclude set as in the `encodeURIComponent()` function
For example, `encode('something', encode.componentChars, true)` is roughly the equivalent of
the `encodeURIComponent()` function (except `encode()` doesn't throw).
### .decode(str [, exclude]) -> String
Decode percent-encoded string. Invalid percent-encoded sequences (e.g. `%2G`)
are left as is. Invalid UTF-8 characters are replaced with `U+FFFD`.
Params:
- __str__ - input string.
- __exclude__ - set of characters to leave encoded, optional, `;/?:@&=+$,#`.
### decode.defaultChars, decode.componentChars
You can use these constants as second argument to `decode` function.
- `decode.defaultChars` is the same exclude set as in the standard `decodeURI()` function
- `decode.componentChars` is the same exclude set as in the `decodeURIComponent()` function
For example, `decode('something', decode.defaultChars)` has the same behavior as
`decodeURI('something')` on a correctly encoded input.
### .parse(url, slashesDenoteHost) -> urlObs
Parse url string. Similar to node's [url.parse](http://nodejs.org/api/url.html#url_url_parse_urlstr_parsequerystring_slashesdenotehost), but without any
normalizations and query string parse.
- __url__ - input url (string)
- __slashesDenoteHost__ - if url starts with `//`, expect a hostname after it. Optional, `false`.
Result (hash):
- protocol
- slashes
- auth
- port
- hostname
- hash
- search
- pathname
Difference with node's `url`:
1. No leading slash in paths, e.g. in `url.parse('http://foo?bar')` pathname is
``, not `/`
2. Backslashes are not replaced with slashes, so `http:\\example.org\` is
treated like a relative path
3. Trailing colon is treated like a part of the path, i.e. in
`http://example.org:foo` pathname is `:foo`
4. Nothing is URL-encoded in the resulting object, (in joyent/node some chars
in auth and paths are encoded)
5. `url.parse()` does not have `parseQueryString` argument
6. Removed extraneous result properties: `host`, `path`, `query`, etc.,
which can be constructed using other parts of the url.
### .format(urlObject)
Format an object previously obtained with `.parse()` function. Similar to node's
[url.format](http://nodejs.org/api/url.html#url_url_format_urlobj).
## License
[MIT](https://github.com/markdown-it/mdurl/blob/master/LICENSE)
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