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CSS3 media queries

Sat, 01/14/2012 - 22:26 —

CSS is improving with the introduction of CSS3.

Contrary to the previous version, CSS3 supports selections that are very advanced, offering capabilities close to what you could write in JavaScript.

Today I wanted to talk about the Media Queries because that can be used to very much optimize the list of links used to load your CSS data.

In HTML, you can use a <link ...> to add a CSS file to your page.

<link rel="stylesheet" type="text/css" href="style.css" />

In this case, the file style.css will always be loaded, whatever the media being used.

MO Regex Filter for Drupal

$5.00

The MO Regex Filter logo.One of our customers changed to a new domain name. This left his site with thousands of links pointing to his old domain name. Changing all of those links manually would have proven to be too time consuming. That's when Made to Order Software decided to create the MO Regex Filter Drupal module to answer his need. This module was then used to replace the old domain name with the new domain name automatically. Many days if not weeks of work was saved!

$5.00

Wait For Frame (dynamic)

SWF Action
Action Category: 
Movie
Action Details: 
(dynamic)
Action Identifier: 
141
Action Structure: 
unsigned char    f_skip;
Action Length: 
1 byte(s)
Action Stack: 
pop 1 (a)
Action Operation: 
a1 := pop();
if(_root.get_frame() >= a1) {
  // execute f_skip bytes of instructions
  ...
}
else {
  // ignore f_skip bytes of instructions
  pc += f_skip;
}
Action Flash Version: 
4
See Also: 
Branch Always
Branch If True
Goto Expression
Wait For Frame

Pop a value or a string used as the frame number or name to wait for. The frame can be specified as with the Goto Expression. If the frame was not reached yet, skip the following f_skip actions.

WARNING

Goto Label

SWF Action
Action Category: 
Movie
Action Details: 
0
Action Identifier: 
140
Action Structure: 
string   f_label;
Action Length: 
-1 byte(s)
Action Stack: 
n.a.
Action Operation: 
goto(f_label);
Action Flash Version: 
3
See Also: 
FrameLabel
Goto Expression
Goto Frame
Next Frame
Play
Previous Frame
Stop

Go to a named frame. Frames are given names with the use of the FrameLabel tag.

This action has a behavior similar to a Goto Expression with a string.

Goto Frame

SWF Action
Action Category: 
Movie
Action Details: 
0
Action Identifier: 
129
Action Structure: 
unsigned short   f_frame_no;
Action Length: 
2 byte(s)
Action Stack: 
n.a.
Action Operation: 
goto(f_frame_no);
Action Flash Version: 
1
See Also: 
Goto Expression
Goto Label
Next Frame
Play
Previous Frame
Stop

The playback continues at the specified frame. Frame numbers start at 0 and go up to to total number of frames - 1.

A frame appears at each new Show Frame tag.

For a goto frame with a dynamic frame number, use the Goto Expression action instead.

Goto Expression

SWF Action
Action Category: 
Movie
Action Details: 
0
Action Identifier: 
159
Action Structure: 
unsigned char    f_play;
Action Length: 
1 byte(s)
Action Stack: 
pop 1 (a)
Action Operation: 
a1 := pop();
goto(a1);
Action Flash Version: 
4
See Also: 
Goto Frame
Goto Label
Next Frame
Play
Previous Frame
Stop

Pop a value or a string and jump to that frame. Numerical frame numbers start at 0 and go up to the number of frames - 1. When a string is specified, it can include a path to a sprite as in:

/Test:55

When f_play is ON (1), it wakes up that sprite (movie, thread). Otherwise, the frame is shown in stop mode (it does not go past the Show Frame tag.) This action can be used to playback a sprite from another given a set of events.

Get Target

SWF Action
Action Category: 
Movie
Action Details: 
0
Action Identifier: 
69
Action Structure: 
<n.a.>
Action Length: 
0 byte(s)
Action Stack: 
pop 1 (o), push 1 (s)
Action Operation: 
o1 := pop();
r := target_of(o1);
push(r);
Action Flash Version: 
5
See Also: 
Goto Expression
Set Target
Set Target (dynamic)
With

Pop an object, if it is a valid sprite (same as movie or thread), push it's path on the stack.

A sprite path can be used by different other actions such as the Goto Expression.

PostgreSQL and Drupal conflict

Sat, 11/28/2009 - 05:33 —

We have been running Drupal for some time now and we have noticed that it generates a very large amount of warnings in our log files.

The warning is in link with improperly formatted strings. PostgreSQL tries to follow the SQL specification to the letter and that means you cannot use the backslash character to escape special character sequences (such as \n for a newline character.)

The assert() macro in C/C++

Fri, 10/26/2007 - 22:06 —

This is a subject that comes back all the time in C/C++ boards.

Should you use assertions?

The answer is clearly yes. But the C/C++ assert() function is usually defined using a macro. Macros have several problems. The most common ones are: they offer no type checking, they do not warn you about weird side effects, they have a different syntax than the C/C++ language itself.

One good thing: for a fast program, the debug code used to check parameters, results, etc. is gone.

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