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Regular expression for floating point numbers
...tion.)
That said, most regex engines (actually, all of them, as far as I know) would accept \.. Most likely, there's an issue with escaping.
The Trouble with Escaping
Some languages have built-in support for regexes, such as JavaScript. For those languages that don't, escaping can be a problem.
...
What are metaclasses in Python?
...try.register(self, self.interfaces)
print "Would register class %s now." % self
def __add__(self, other):
class AutoClass(self, other):
pass
return AutoClass
# Alternatively, to autogenerate the classname as well as the class:
# return type(se...
Android emulator-5554 offline
...
This helped ind combination with 'Cold Boot now' just below 'Wipe Data'.
– S. Gissel
Apr 24 '19 at 11:00
...
git: 'credential-cache' is not a git command
...e msysgit has been superseded by Git for Windows, using Git for Windows is now the easiest option. Some versions of the Git for Windows installer (e.g. 2.7.4) have a checkbox during the install to enable the Git Credential Manager. Here is a screenshot:
Still using msysgit? For msysgit versions ...
In absence of preprocessor macros, is there a way to define practical scheme specific flags at proje
.... Here's an example:
#if DEBUG
let a = 2
#else
let a = 3
#endif
Now, you must set the "DEBUG" symbol elsewhere, though. Set it in the "Swift Compiler - Custom Flags" section, "Other Swift Flags" line. You add the DEBUG symbol with the -D DEBUG entry.
(Build Settings -> Swift Compiler ...
how to create a Java Date object of midnight today and midnight tomorrow?
...Date
LocalTime midnight = LocalTime.MIDNIGHT;
LocalDate today = LocalDate.now(ZoneId.of("Europe/Berlin"));
LocalDateTime todayMidnight = LocalDateTime.of(today, midnight);
LocalDateTime tomorrowMidnight = todayMidnight.plusDays(1);
Joda-Time
If you're using a JDK < 8, I recommend Joda Time,...
How to add hours to current time in python
...
from datetime import datetime, timedelta
nine_hours_from_now = datetime.now() + timedelta(hours=9)
#datetime.datetime(2012, 12, 3, 23, 24, 31, 774118)
And then use string formatting to get the relevant pieces:
>>> '{:%H:%M:%S}'.format(nine_hours_from_now)
'23:24:31'
I...
how to emulate “insert ignore” and “on duplicate key update” (sql merge) with postgresql?
...rows and with mysql i can do this with only ONE query without any looping. Now I wonder if this is possible with postgresql too: to use just one query to bulk update OR insert. You say: "you're best of splitting it into two queries, one for INSERT and one for UPDATE" but how can I do an insert which...
Receive result from DialogFragment
...tCode == 1) { // 1 is an arbitrary number, can be any int
// Now do what you need to do after the dialog dismisses.
}
}
}
The requestCode is basically your int label for the DialogFragment you called, I'll show how this works in a second. The resultCode is the code tha...
Can I automatically increment the file build version when using Visual Studio?
...d like this,
<PropertyGroup>
<Year>$([System.DateTime]::Now.ToString("yy"))</Year>
<Month>$([System.DateTime]::Now.ToString("MM"))</Month>
<Date>$([System.DateTime]::Now.ToString("dd"))</Date>
<Time>$([System.DateTime]::Now.ToString(...