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/

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.

The code itself:

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_-~#=]*))*[\/[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 );
  }
})

My apologies to those with screens that aren't 1280 pixels wide, but the regex doesn't like to be split into multiple lines.

Known issues:

It can't handle the "?" in PHP querries. I assume there can only be one, and it must be after the filename (with the extension). Hashes (#) should probably be handled the same way, instead of the way I'm handling them now (as letters, allowed anywhere except in the domain).

http://foo.com/index.php?user=blarg

Credits:

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