I'd like to "grab" a few hundred urls from a few hundred html pages.
Pattern:
<h2><a href="http://www.the.url.might.be.long/urls.asp?urlid=1" target="_blank">The Website</a></h2>
In my bash script I have an external (received from user) string, which I should use in sed pattern.
REPLACE="<funny characters here>"
sed "s/KEYWORD/$REPLACE/g"
How can I escape the $REPLACE string so it would be safely accepted by sed as a literal replacement?
NOTE: The KEYWORD is a dumb substring with no matches etc. It is not supplied by user.
Imagine a:
public class Global : IDisposable
{
private static readonly List<IDisposable> Disposables = new List<IDisposable>();
public void ApplicationStart()
{
var heavyLifter = new HeavyLifter();
Disposables.Add(heavyLifter);
}
public void Dispose()
{
Disposables.ForEach(d => d.Dispose());
}
}
I am somewhat inexperienced with IDisposable. Is this a viable pattern?
How to create regex pattern which is concatenate with variable, something like this:
var test ="52";
var re = new RegExp("/\b"+test+"\b/");
alert('51,52,53'.match(re));
Thanks
Hi,
I have design problem regarding async calls to method.
I'd like to know best/good pattern to call async method, which calls another async method, which calls another async method :)
In other words, I have WCF service reference created with async methods and I want to call them from another async method which is called by other async method.
All this for non blocking GUI.
Thanks!
Recently lot of interviewers are asking
"What are the integration patterns are you familiar with?".
I know design patterns,what is integration pattern then?
i have something that requires a matrix of values, similar to pokemon:
i have a class object for each of the types, is there a pattern or a good way to implement this, as a middle layer or in the classes?
In python if a string contains the following,
print valid_str
The output of this is
Record is positive in tone:
It emphasizes "what a child can do and his or her achievements, as opposed to what he or she cannot do," explains the It is useful for progress and achievements during office conferences
How to search for the pattern It is useful in the above string and if not found return something.
Thanks..
I have a Java-application that loads data from a legacy file format into an SQLite-Database using JDBC. If the database file specified does not exist, it is supposed to create a new one. Currently the schema for the database is hardcoded in the application. I would much rather have it in a separate file as an SQL-Script, but apparently there is now easy way to execute an SQL-Script though JDBC. Is there any other way or a pattern to achieve something like this?
I have a SimpleDateFormat object that I retrieve from some internationalization utilities. Parsing dates is all fine and good, but I would like to be able show a formatting hint to my users like "MM/dd/yyyy". Is there a way to get the formatting pattern from a SimpleDateFormat object?
I have an application that has a tabcontrol with 5 tabpages of information that user interacts with. Also, there are contextual menus and toolbars for editing and formatting the information. Do I create a different view & presenter for each tab page or the tabcontrol iteself? How do I apply the pattern to the toolbars and menus that can interact with any of the tabs?
I want to refactor some code using the Windsor IOC/DI framework, but my issue is that I have some Singleton classes and Factory pattern classes and I am not sure that one can implement a Singleton or Factory using DI.
Has anyone any ideas if that is possible and how?
We have a dao as a project (jar file).
Clients use its interfaces and factories to operate with database.
Using standard CRUD operations, dao allows you to search an entity by some search criteria.
What is the best way to represent this criteria?
Is transfer object appropriate pattern in this situation?
How should client create SearchModel instance?
Please, share.
Regards.
I found a lot of links on metaclasses, and most of them mention that they are useful for implementing factory methods. Can you show me an example of using metaclasses to implement the design pattern?
Hi, This is more a design question... You can't do a decorate design pattern if:
1) The object is marked "sealed" meaning you can't extend from it.
2) or you want to override a method but its not virtual.
What can you do then? Taken that you can't change the class source code if you don't have the source code (like a 3rd party library).
Hello, is it good, that every PHP class implements a Singleton pattern? I think, it will be less memory usage because of it. Is it right opinion? Thanks!
Hi all. I am not an expert on SQl Server. Is this a valid pattern for handling errors in a batch of SELECT, INSERT...in SQl SERVER ? (I use v.2008)
BEGIN TRANSACTION
BEGIN TRY
-- statement 1
-- statement 2
-- statement 3
COMMIT TRANSACTION
END TRY
BEGIN CATCH
ROLLBACK TRANSACTION
END CATCH
Thanks
I am having a C# application to sync data between PC and palm devices.
There are codes written like below:
showMessage("synchronizing Table1");
Sync(destTable1,sourceTable1);
Sync(destTable2,sourceTable2);
showMessage("synchronizing Table2");
// more code
How do I separate the actual process of synchronizing from displaying message?
Which design pattern to follow?
Thanks in advance...
I somewhere heard that the .NET Framework was built around specific pattern, which they tried to uphold as much as possible.
var rsa = new RSACryptoServiceProvider(); // Create
rsa.ImportParameters(GetParameters()); // Set
byte[] encrypted = rsa.Encrypt(data, true); // Execute
// Destroyed by garbage-collector
Are there any variants of this? What are the general pros and cons?
Could someone write down a very simple basic example in javascript to conceptualize (and hopefully make me understand) how the jQuery plugin design pattern is done and how it works?
I'm not interested in how creating plugin for jQuery (so no jQuery code here at all).
I'm interested in a simple explanation (maybe with a bit of Javascript code) to explain how it is done the plugin concept.
Plz do not reply me to go and read jQuery code, I tried, but I it's too complex, otherwise I would have not post a question here.
svn diff -rXX:HEAD
Will give me a format like this, if there has been a merge between those revisions:
Merged /<branch>:rXXX,XXX-XXX
or
Merged /<branch>:rXXX
I'm not very familiar with regex and am trying to put together a pattern which will match all the numbers (merged revision numbers) AFTER matching the "Merged /branch:r" part.
So far I have this to match the first part:
[Mm]erged.*[a-zA-Z]:r
Thanks in adv. for the help :)
My file is:
DIVIDER
Sometext_string
many
lines
of random
text
DIVIDER
Another_Sometext_string
many
many
lines
DIVIDER
Third_sometext_string
....
How change lines following DIVIDER pattern
Result must be:
DIVIDER
[begin]Sometext_string[end]
many
lines
of random
text
DIVIDER
[begin]Another_Sometext_string[end]
many
many
lines
DIVIDER
[begin]Third_sometext_string[end]
....