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URL: Difference between revisions

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==Parsing==
==Parsing==


parse (urlstr, optional baseURL)
See https://github.com/annevk/url/blob/master/url.js for now.
  url = new URL
  tokenize(urlstr)
  SCHEME START
    if char is in ALPHA
      buffer += char
      -> SCHEME
    else
      unconsume char
      -> NO SCHEME
  SCHEME
    if char is in ALPHA / DIGIT / "+" / "-" / "."
      buffer += char
      -> continue
    elif char is ":"
      url.scheme = buffer.toASCIILowercase()
      buffer = ""
      if url.scheme is not hierarchical (data:)
        -> PATH
      elif baseURL and url.scheme is baseURL.scheme (http:?test)
        -> HIERARCHICAL
      else  (https://test.com/)
        -> AUTHORITY START
    else:
      input.reset()
      -> NO SCHEME
  NO SCHEME
    if not baseURL or baseURL.scheme is not hierarchical
      url.invalid = true
      return url
    else
      -> HIERARCHICAL
  HIERARCHICAL
    if char is EOI (end-of-input)
      url = baseURL
      url.fragment = null
      exit
    elif char is "/" or char is "\"
      if next char "/" or next char is "\"
        url.scheme = baseURL.scheme
        -> AUTHORITY START
      else
        url.scheme = baseURL.scheme
        url.authority = baseURL.authority
        -> HIERARCHICAL PATH
    elif char is "?"
        url.scheme = baseURL.scheme
        url.authority = baseURL.authority
        url.path = baseURL.path
        -> QUERY
    elif char is "#"
        url.scheme = baseURL.scheme
        url.authority = baseURL.authority
        url.path = baseURL.path
        url.query = baseURL.query
        -> FRAGMENT
    else
      url.scheme = baseURL.scheme
      url.authority = baseURL.authority
      prepend input by baseURL.path up to the last /
      -> HIERARCHICAL PATH
  AUTHORITY START
    if char is "/" or char is "\"
      -> continue
    else
      -> AUTHORITY
  AUTHORITY
    ...
  PATH (has no query)
    if char is "#"
      FRAGMENT
    else
      path += char
  HIERARCHICAL PATH
    if char is "?"
      -> QUERY
    if char is "#"
      -> FRAGMENT
    else
      buffer += char
  QUERY
    if char is "#"
      -> FRAGMENT
  FRAGMENT
    ...


[[Category:Spec coordination]]
[[Category:Spec coordination]]

Revision as of 15:10, 17 September 2012

This documents research and notes around the URL specification.

Implementations

Tests

Terminology

URL string
What you find in attribute values, property values, method parameters, etc.
parse a URL string url using base URL base
Turning a URL string into a URL by using a base URL.
URL
An in-memory representation of a URL with various properties as elaborated on by model below.
URL interface/object
JavaScript representation of a URL.

Model

URL (.href)
- invalid?
- scheme (.protocol)
- authority
  - username (proposed .username)
  - password (proposed .password)
  - ip/host (.hostname)
  - port (.port)
- path (.pathname)
- query (.search)
- fragment (.hash)

Parsing

See https://github.com/annevk/url/blob/master/url.js for now.

Retrieved from "https://wiki.whatwg.org/index.php?title=URL&oldid=8488"