Vesper:scratchspace

Welcome to Vesper's Scratchspace~

Today's menu: Ubiquity URL noun type (and a basic function that uses it)

The regex in the code more or less says this:

(some protocol name) :// (a string) [. (a string)] [/ (a string)] (maybe / if you want)

Items in square brackets can be repeated. So,

pasta://a.taste.from.little.italy

is a valid url, according to this model. And, so is this:

universe://milky.way/earth/north-america/canada/ontario/

This is not valid, because I've never seen a period in strings after the domain name. (In this case, the period between the "d" and "e" makes it invalid.)

a://b.c/d.e

All of these choices were arbitrarily chosen by me. I'll be pursuing the community for a better description of what a URL should and should not be.

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var noun_type_url = {
  _name: "Valid URL",

  suggest: function( text, html ) {
    if (!text)
      return [ CmdUtils.makeSugg("http://") ];


    if(/^[A-Za-z0-9]+:\/\/([A-Za-z0-9_-]+)(\.([A-Za-z0-9_-]+))+(\/([A-Za-z0-9_-~]+))*[/]?$/.test(text)){
      return [ CmdUtils.makeSugg(text) ];
    }

    return [ CmdUtils.makeSugg("http://" + text) ];
  }
};


CmdUtils.CreateCommand({
  name: "url",
  takes: {"your shout": noun_type_url},
  preview: function( pblock, theShout ) {
    pblock.innerHTML = "Will verify: " + theShout.text;
  },
  execute: function( theShout ) {
    var msg = theShout.text;
    displayMessage( msg );
  }
})

Known issues: You can't link to a file with an extension (such as ".html"), because of the period. This will be fixed shortly...

http://www.example.com/index.html

Syntax for the sample command was edited from the sample "echo" command in the tutorial.