XML 问题: 比微格式更轻巧：纤格式（Picoformat）

<div class="vevent">
    <a class="url"
        href="http://www.vanpyz.org/conference/keynotes.html">
        <abbr class="dtstart" title="20060804T1900-0700">
            August 4, 2006 - 19:00
        </abbr> -
        <abbr class="dtend" title="20060804T2100-0700">
            21:00
        </abbr> -
        <span class="summary">
            Vancouver Python Workshop Keynotes
        </span> - at
        <span class="location">
            Fletcher Challenge Canada Theatre,
            SFU Harbour Center,
            Downtown Vancouver
        </span>
    </a>
    <div class="description">
        <p>The Vancouver Python Workshop keynote address is an
        opportunity to hear from leading members of the Python
        community. This years speakers are Guido van Rossum of
        Google and Jim Hugunin from Microsoft.</p>
    </div>
</div>

event = {
    'title':  'Vancouver Python Workshop Keynotes',
    'location': 'Fletcher Challenge Canada Theatre, \
                 SFU Harbour Center, Downtown Vancouver',
    'url': 'http://www.vanpyz.org/conference/keynotes.html',
    'start': '2006-08-04T19:00-0700',
    'end': '2006-08-04T21:00-0700',
    'description': 'The Vancouver Python Workshop keynote address\
     is an opportunity to hear from leading members of the Python\
     community. This years speakers are Guido van Rossum of Google\
     and Jim Hugunin from Microsoft.'};

.. event::

    LOCATION: Fletcher Challenge Canada Theatre,
    SFU Harbour Center, Downtown Vancouver
    DTSTART: TZID=America/Vancouver:20060804T190000
    DTEND: TZID=America/Vancouver:20060804T210000
    SUMMARY: Vancouver Python Workshop Keynotes
    DESCRIPTION: The Vancouver Python Workshop keynote address
    is an opportunity to hear from leading members of the Python
    community. This years speakers are Guido van Rossum of Google
    and Jim Hugunin from Microsoft.

BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Apple Computer\, Inc//iCal 2.0//EN
BEGIN:VEVENT
DURATION:PT3H
LOCATION: Fletcher Challenge Canada Theatre,
SFU Harbour Center, Downtown Vancouver
DTSTAMP:20060615T034522Z
UID:FE31377A-AB78-4D99-BC25-3F09C99E5928
DTSTART;TZID=America/Vancouver:20060704T100000
SUMMARY:Vancouver Python Workshop Keynotes
DESCRIPTION:The Vancouver Python Workshop keynote address
is an opportunity to hear from leading members of the Python
community. This years speakers are Guido van Rossum of Google
and Jim Hugunin from Microsoft.
END:VEVENT
END:VCALENDAR

#!/usr/local/bin/python

'''
Minimal JSON REST server
'''

import os
import cgi
import cgitb
cgitb.enable()
import simplejson

sample_data = {'name': 'King Arthur',
    'quest': 'To seek the holy grail',
    'airspeed_of_unladen_European_swallow': '24 MPH'}




def post(args):
    '''
    Used to create a new resource
    '''
    new_uri = 'http://example.org/' # URI of newly created resource
    sample_data['result_uri'] = new_uri
    print simplejson.dumps(sample_data)


def put(args):
    '''
    Used to update an existing resource
    '''
    sample_data.update(args)
    print simplejson.dumps(sample_data)


def get(args):
    '''
    Used for any side-effect free request
    '''
    print simplejson.dumps(sample_data)

def delete(args):
    '''
    Used to remove an existing note
    '''
    print simplejson.dumps({'content':'None'})


def main():
    method = os.environ.get('REQUEST_METHOD', 'GET')
    if method == 'GET':
        args = None
    else:
        json_value = cgi.FieldStorage().getfirst('json_value')
        args = simplejson.loads(json_value)
    if method == 'POST':
        method = args['method'] # fix for browsers that don't
                                # send PUT or DELETE properly

    # Start an HTTP response
    print "Content-type: text/plain"
    print ""

    # Python dispatch idiom using a dictionary vs. case-statement
    dict(POST=post,
         PUT=put,
         GET=get,
         HEAD=get,
         DELETE=delete)[method](args)

if __name__ == '__main__':
    main()

//
//   rest.js
//
//   Simplistic framework for bi-directional JSON transport via REST
//

SERVER = 'http://localhost/rest_cgi.py'

function handle_success(result){
    alert('Success: ' + result.responseText);
}

function handle_error(result){
    logError(result.responseText);
}

var sample_content = {'name': 'Sir Lancelot',
         'quest': 'To seek the holy grail',
         'favorite_color': 'blue'};

function _sendVerb(verb, content, handler){
    var req = getXMLHttpRequest();
    // Certain browsers don't actually support verbs besides GET
    // and POST, spoiling the party for the rest of us
    content['method'] = verb;
    if (verb != 'GET'){
        verb = 'POST'
    }
    req.open(verb, SERVER);
    # queryString is the easiest way to send data to the server
    json_content = queryString(['json_value'],
        [serializeJSON(content)]);
    var req = sendXMLHttpRequest(req, json_content)
    req.addCallbacks(handler, handle_error);
}

function get(){
    _sendVerb('GET', '', handle_success);
}

function post(){
    _sendVerb('POST', sample_content, handle_success);
}

function put(){
    _sendVerb('PUT', sample_content, handle_success);
}

function test_delete(){
    _sendVerb('DELETE', sample_content, handle_success);
}

function handleSuccess(result){
    var data = evalJSON(result.responseText);
    // Convert json data to DOM nodes
    var hCalendarData = objectToCalendar(data);
    // In a real application we would add/replace this in our
    // Web page somewhere, but for this demo we'll just display it.
    alert(toHTML(hCalendarData));
}

var ABBR = createDOMFunc('abbr');

function pad2(number){
    if (number < 10){
        return '0' + number;
    }else{
        return '' + number;
    }
}

function time(date){
    return pad2(date.getHours()) +
        ':' +
        pad2(date.getMinutes());
}

function objectToCalendar(obj){
    var startDate = isoTimestamp(obj.start);
    var endDate = isoTimestamp(obj.end);
    var cal = DIV({'class':'vevent'},
                  A({'class':'url', 'href': obj.url},
                      ABBR({'class':'dtstart', 'title': obj.start},
                          startDate.toLocaleDateString(),
                          ' - ',
                          time(startDate)
                      ),
                      ' - ',
                      ABBR({'class': 'dtend', 'title': obj.end},
                          time(endDate)
                      ),
                      ' - ',
                      SPAN({'class': 'summary'}, obj.summary),
                      ' - at ',
                      SPAN({'class': 'location'}, obj.location)
                  ),
                  DIV({'class':'description'},
                      P(obj.description)
                  )
              );
    return cal;
}