repeat

While programming, one of the best thing to do to make sure that your software works as expected is to write tests.

Actually, if you write enough tests to make sure that the code works as expected, it should take you between two and three more time to finish up your project. So if it takes you one day to write a function, it will take you another two days to write good tests for that one function.

Many of those tests, especially as you construct more and more complex software, require large amount of input and output data. It's easy enough to test a function such as strlen(). It has one ...

Technology is ever-changing, and it brings huge operational benefits to all industries, including hospitality. However, not every business has the time, energy, funds, and resources to constantly invest in the latest technological breakthroughs.

That being said, there are a few simple and cost-effective operational aids that are easy to setup and make running a hospitality business that much easier, like hotel management software.

Not sure if you need new software for your hotel? Keep reading to learn how digital hotel management solutions improve efficiency.

1. Accurate Reports

Hotel ...

For a very long time now, we have been using languages that support having functions that one can call. That was not always the case, although even really old versions of BASIC had a GOSUB instruction, which it had no concept of local variables so it was rather difficult to use safely.

Functions allow you to avoid repetition. You write a small snippet of code (or maybe not that small) within a function and then you call that function to reuse that snippet over and over again. Good programmers tend to do that even with one liners. However, many others often think: well, it's just one line, why don't I return copy & paste that wherever I need it, it's going to be faster.

iptables -I DOCKER-USER -i eth0 ! -s 192.168.1.0/24 -j DROP

*filter
:DOCKER-USER - [0:0]

-A DOCKER-USER -j early_forward
-A DOCKER-USER -i eno1 -p tcp -m conntrack --ctorigdstport 80 --ctdir ORIGINAL -j DROP
-A DOCKER-USER -i eno1 -p tcp -m conntrack --ctorigdstport 8080 --ctdir ORIGINAL -j DROP
-A DOCKER-USER -i eno1 -p tcp -m conntrack --ctorigdstport 8081 --ctdir ORIGINAL -j DROP

Docker

As we are helping various customers, we encounter new technologies.

In the old days, we used chroot to create a separate environment where you could have your own installation and prevent the software from within that environment access to everything on your computer. This is particularly useful for publicly facing services liek Apache, Bind, etc.

Double Retweeting and How to Avoid Over-Duplication

I have seen many people retweeting like crazy and I've noticed that once in a while these people have been retweeting the exact same tweet more than once.

I'm pretty sure that in most cases these people ignore the fact. Personally I find their twitter feed annoying because of that. Retweeting is totally okay, it's sharing what others have tweeted and there is nothing wrong with it. However, seeing the exact same tweet 2, 3, 4, or even 5 times pretty much in a row is rather bad taste. I understand that this very tweet is super ...

The repeat keyword is used to repeat the filtering on the data just inserted. This is particularly useful with the asterisk name or on nodes that do not otherwise include a format that transforms the tags included in themselves.

This let you create nodes that are like macros.

Note that the macro can itself include a repeat in one of its Insert Node tags.1

• 1. As far as I can tell, this will not create recursive calls, however, if you have a problem with a macro using repeat, try to remove the keyword to see if that solves the problem. If so, let me know by

This module can be used to create macros (as pointed out by one of our user in a Drupal issue.)

The following steps show you how you can create a macro with the Insert Node module.

Create the Macro

First, create a node that is to become the macro. We will call this node macro. It is used without the Insert Node filter so the Insert Node tags do not get changed. This is important since we reference the main node (with the asterisk) and that reference would look like a recursive reference.

One idea is to use the macro as a PayPal button which gets set with parameters from another node. ...

Syntax

The Insert node tag syntax is:

   [node:<name of node> <parameters>]

Name of node

The <name of node> can either be

• The name of the node, i.e. it's URL without the protocol and domain1, or
• The node identifier (the number you see in your URL when you edit the node), or
• An asterisk (*) in which case the current node applies2
  • 1. For instance, to insert this very node, I would use the name doc_insert_node_usage.
  • 2. The asterisk is useful to repeat something from the node in a block. This could be the title of the node or a CCK field. I would suggest ...

I changed the name of the module back to InsertNode (although I did not want to, I did not want to jeopardize the Drupal 5 version... which would probably have been fine, but well...)

So, the newer version of the D6 module is again called InsertNode.

To upgrade you will want to keep the other version running until you get the new version as the replacement (although you can manage your site the way you'd like this procedure let you switch from the previous version to the new version without having to turn off your site for a little while.)

1. Extract the new version, it adds InsertNode ...

Edges are used to define a shape vector based and also coordinates where images need to be drawn. The edges are always coordinates from where ever your last point was to where ever you want the next point to be (a little like a turtle in LOGO).