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Regex: match everything but specific pattern
...ttern (e.g. any - empty, too - string not starting with foo):
Lookahead-based solution for NFAs:
^(?!foo).*$
^(?!foo)
Negated character class based solution for regex engines not supporting lookarounds:
^(([^f].{2}|.[^o].|.{2}[^o]).*|.{0,2})$
^([^f].{2}|.[^o].|.{2}[^o])|^.{0,2}$
a string ...
64-bit version of Boost for 64-bit windows
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Textarea that can do syntax highlighting on the fly?
...tory wikipedia link: http://en.wikipedia.org/wiki/Comparison_of_JavaScript-based_source_code_editors
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live output from subprocess command
..., good explanation but it lacks the concrete code examples. Here's asyncio-based code that implements the "hard part" (it handles multiple pipes concurrently) in a portable way. You could compare it to the code that uses multiple threads (teed_call()) to do the same.
– jfs
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jQuery get values of checked checkboxes into array
...
DEMO: http://jsfiddle.net/PBhHK/
$(document).ready(function(){
var searchIDs = $('input:checked').map(function(){
return $(this).val();
});
console.log(searchIDs.get());
});
Just call get() and you'll...
Can pandas automatically recognize dates?
...r
non-standard datetime parsing, use pd.to_datetime after pd.read_csv.
Demo:
>>> D = {'date': '2013-6-4'}
>>> df = pd.DataFrame(D, index=[0])
>>> df
date
0 2013-6-4
>>> df.dtypes
date object
dtype: object
>>> df['date'] = pd.to_datetime(df...
How to convert an address into a Google Maps Link (NOT MAP)
...
Feb, 2016:
I needed to do this based on client entered database values and without a lat/long generator. Google really likes lat/long these days. Here is what I learned:
1
The beginning of the link looks like this:
https://www.google.com/maps/place/
2
Th...
Real differences between “java -server” and “java -client”?
...tions. These two solutions share the Java HotSpot runtime environment code base, but use different compilers that are suited to the distinctly unique performance characteristics of clients and servers. These differences include the compilation inlining policy and heap defaults.
Although the Server a...
How to hash a password
... salt+hash into a string for storage
string savedPasswordHash = Convert.ToBase64String(hashBytes);
DBContext.AddUser(new User { ..., Password = savedPasswordHash });
STEP 5 Verify the user-entered password against a stored password
/* Fetch the stored value */
string savedPasswordHash = DBContex...
Linux bpftrace学习笔记（持续更新） - 操作系统(内核) - 清泛网 - 专注IT技能提升
..._US.UTF-8/LC_CTYPE
head /usr/lib/locale/en_US.utf8/LC_CTYPE
head /usr/lib64/gconv/gconv-modules.cache
head /usr/lib/locale/locale-archive
head /usr/share/locale/locale.alias
head /usr/lib/locale/en_US.UTF-8/LC_CTYPE
head /usr/lib/locale/en_US.utf8/LC_CTYPE
head /usr/lib64/gconv/gconv-modules....