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                    Preview what you type in an input or a textarea out of them (in a html tag, like a p, hx...)

Seen here: (spanish explain).

javascript code:

function preview(id1, id2){
	  		var NewText = document.getElementById(id1).value;
	  		splitText = NewText.split(/\n/).join("<br />");
	  		var DivElement = document.getElementById(id2);
	  		DivElement.innerHTML = splitText;

html code:

<form action="#">
<input type="text" id="nombre" onkeyup="preview('name', 'preview-name');" />

<input type="text" id="phone" onkeyup="preview('phone', 'preview-phone');" />

	<dd id="preview-name"></dd>
	<dd id="preview-phone"></dd>

                    This function transforms an HTTP request path (ie, $_SERVER['PATH_INFO']) into its canonical form, removing empty path elements and relative path elements (//, /./, /../). It assumes that there is a trailing slash on the path if it's a directory.

function canonical_path($path) {
    $canonical = preg_replace('|/\.?(?=/)|','',$path);
    while (($collapsed = preg_replace('|/[^/]+/\.\./|','/',$canonical,1)) !== $canonical) {
        $canonical = $collapsed;
    $canonical = preg_replace('|^/\.\./|','/',$canonical);
    return $canonical;
                    The following code is for loading Velocity resources (i.e. Velocity files) from a web application's ServletContext.


import javax.servlet.ServletContext;

import org.apache.commons.collections.ExtendedProperties;
import org.apache.velocity.exception.ResourceNotFoundException;
import org.apache.velocity.runtime.resource.Resource;
import org.apache.velocity.runtime.resource.loader.ResourceLoader;

public class WebAppResourceLoader extends ResourceLoader {

    private static ServletContext context = null;

    public void init(ExtendedProperties extendedProperties) {


    private static ServletContext getServletContext() {
        return context;

    public static void setServletContext(ServletContext context) {
        WebAppResourceLoader.context = context;

     * @see org.apache.velocity.runtime.resource.loader.ResourceLoader#getResourceStream(java.lang.String)
    public InputStream getResourceStream(String name)
            throws ResourceNotFoundException {
        InputStream result = null;

        if (name == null || name.length() == 0) {
            throw new ResourceNotFoundException("No template name provided");

        try {
            if (!name.startsWith("/"))
                name = "/" + name;

            result = getServletContext().getResourceAsStream(name);
        } catch (NullPointerException npe) {
            throw new ResourceNotFoundException("ServletContext not found");
        } catch (Exception fnfe) {
            throw new ResourceNotFoundException(fnfe.getMessage());

        return result;

    public boolean isSourceModified(Resource arg0) {
        return false;

    public long getLastModified(Resource arg0) {
        return 0;


Then to initialize Velocity:

    Properties props = new Properties();
    props.setProperty("resource.loader", "webapp");
        "Load from the ServletContext");

From then on out you can use #parse directives such as:

Explain will tell you if your index work as you thought.

(I forgot to login in the last two snippets)                
                    Here is a quick way to convert database records to XML using XML::Simple.


use warnings;
use strict;
use XML::Simple;
use DBI;

my $dbh = DBI->connect('DBI:mysql:MYDATABASE','user','password')
  or die DBI->errstr;

# Get an array of hashes
my $recs = $dbh->selectall_arrayref('SELECT * FROM contents',{ Columns => {} });

# Convert to XML where each hash element becomes an XML element
my $xml = XMLout( {record => $recs}, NoAttr => 1 );

print $xml;


For a table with fields named "id", "entry", and "modified", the output would be:

    <entry>1932 - 1939</entry>
    <modified>2005-04-15 22:24:44</modified>
    <entry>Yet another entry</entry>
    <modified>2005-04-15 22:25:00</modified>
    <entry>More stuff here</entry>
    <modified>2005-04-15 22:25:13</modified>
                    You can use curl on the command line to do a POST to an endpoint. 

echo '<doc><item>Some content.</item></doc>' | curl -X POST -H 'Content-type: text/xml' -d @-

This is handy for adding web services to applications that do not do web services but can do command lines--FileMaker for example.                
                    This will replace your H1 tag with a 100px by 100px logo.
Users with CSS disabled will see whatever is in 
<h1>Company Inc.</h1>
users with CSS will see the Company Inc. logo
to use this, add  this to your stylesheet:
h1 {
	text-indent: -100em;
	overflow: hidden;
	background: url(logo.png) no-repeat;
	height: 100px;
	width: 100px;
                    module MetaBottle
  def self.make(x) do
      define_method(:bottle) do
        case x
        when 0 then "no more bottles"
        when 1 then "1 bottle"
        else        "#{x} bottles"
        end + " of beer"
      define_method(:bottle_minus_one) do
        case x - 1
        when 0 then "no more bottles"
        when 1 then "1 bottle"
        else        "#{x} bottles"
        end + " of beer"
      define_method(:to_s) do
        return <<T
#{bottle} on the wall, #{bottle},
take one down, pass it around,
#{bottle_minus_one} on the wall.\n

(1..99).map { |x| MetaBottle.make(x) }.reverse_each do |bottle_class|
  bottle =
  puts bottle
javascript:q=document.getSelection();for(i=0;i<frames.length;i++){q=frames[i].document.getSelection();if(q)break;}if(!q)void(q=prompt('Statistically Improbable Phrase:',''));if(q)location.href=''+escape(q)+'/ref=sip_bod_0/103-6410487-8187016'
                    require 'enumerator'

ary = [ 1, 2, 3, 4 ]

# iterate over two elements at a time
ary.each_slice(2) { |a,b| p [a, b] }

# iterate over every pair of consecutive pair of numbers
ary.each_cons(2) { |a, b| p [a, b] }

# An Enumerable::Enumerator object can be created as well,
# that mixes in Enumerable, for further processing:
ary.enum_for(:each_cons, 2).map { |a,b| a + b  } # => [3, 5, 7]