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How to input a regex in string.replace?
I need some help on declaring a regex. My inputs are like the following:
7 Answers
7
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Objective-C and Swift URL encoding
...
To escape the characters you want is a little more work.
Example code
iOS7 and above:
NSString *unescaped = @"http://www";
NSString *escapedString = [unescaped stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLHostAllowedCharacterSet]];
NSLog(@"escapedStrin...
Does MySQL ignore null values on unique constraints?
...multiple NULLs in a column with a unique constraint.
CREATE TABLE table1 (x INT NULL UNIQUE);
INSERT table1 VALUES (1);
INSERT table1 VALUES (1); -- Duplicate entry '1' for key 'x'
INSERT table1 VALUES (NULL);
INSERT table1 VALUES (NULL);
SELECT * FROM table1;
Result:
x
NULL
NULL
1
This is n...
Find and replace in file and overwrite file doesn't work, it empties the file
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When the shell sees > index.html in the command line it opens the file index.html for writing, wiping off all its previous contents.
To fix this you need to pass the -i option to sed to make the changes inline and create a backup of the original file...
Convert datetime object to a String of date only in Python
...rmat here'); and
new format method: '{:format here}'.format(dt)
So your example could look like:
dt.strftime('%m/%d/%Y')
or
'{:%m/%d/%Y}'.format(dt)
For completeness' sake: you can also directly access the attributes of the object, but then you only get the numbers:
'%s/%s/%s' % (dt.month, ...
How does the Windows Command Interpreter (CMD.EXE) parse scripts?
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We performed experiments to investigate the grammar of batch scripts. We also investigated differences between batch and command line mode.
Batch Line Parser:
Here is a brief overview of phases in the batch file line parser:
Phase 0) Re...
See my work log in jira
...ssian Marketplace under a BSD licence, but it's not free.
On our JIRA 5.0.x server, it was accessible from the Projects tab > Summary page > Reports drop-down list > Time Sheet Report item.
After upgrading to JIRA 6.x, it was accessible from Projects tab > Summary page > Reports sec...
Inserting a tab character into text using C#
...uilding an application where I should capture several values and build a text with them: Name , Age , etc.
9 Answers
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Html helper for
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HTML Upload File ASP MVC 3.
Model: (Note that FileExtensionsAttribute is available in MvcFutures. It will validate file extensions client side and server side.)
public class ViewModel
{
[Required, Microsoft.Web.Mvc.FileExtensions(Extensions = "csv",
ErrorMe...
Does “untyped” also mean “dynamically typed” in the academic CS world?
...s to know that the notion of "type" was invented in the 1930s, in the context of lambda calculus (in fact, even earlier, in the context of set theory). Since then, a whole branch of computational logic has emerged that is known as "type theory". Programming language theory is based on these foundati...