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How can we match a^n b^n with Java regex?
...B>c)+ (?(B)(?!))
...
(?<Z-Y>z)+ (?(Y)(?!))
$
For example: http://www.ideone.com/usuOE
Edit:
There is also a PCRE pattern for the generalized language with recursive pattern, but a lookahead is needed. I don't think this is a direct translation of the above.
^
(?=(a(?-1)?b)) ...
error, string or binary data would be truncated when trying to insert
...
/// <summary>
/// PArt of code from following link
/// http://stackoverflow.com/questions/3666954/string-or-binary-data-would-be-truncated-linq-exception-cant-find-which-fiel
/// </summary>
/// <param name="context"></param>
/// <returns></r...
How does the Meteor JavaScript framework work? [closed]
...
The meteor.js framework is NOT the meteor http server. Despite the poor naming choice of the folks who made the framework. See meteor.com for more.
– xer0x
Apr 26 '12 at 16:36
...
Use PHP to create, edit and delete crontab jobs?
...
Example
exec('crontab -r', $crontab);
append_cronjob('* * * * * curl -s http://localhost/cron/test1.php');
append_cronjob('* * * * * curl -s http://localhost/cron/test2.php');
append_cronjob('* * * * * curl -s http://localhost/cron/test3.php');
...
Sublime Text 2: Trim trailing white space on demand
...
I found a soulution here:
http://www.sublimetext.com/forum/viewtopic.php?f=4&t=4958
You can modify the package
trim_trailing_white_space.py
located in the default packages directory, this way:
import sublime, sublime_plugin
def trim_trailin...
What is the fastest way to check if a class has a function defined?
...a function invert_opt defined. Here is the documentation for you to graze
https://docs.python.org/2/library/functions.html#hasattr
https://docs.python.org/3/library/functions.html#hasattr
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i...
Unexpected character encountered while parsing value
...problem with these online tools:
To check if the Json structure is OKAY: http://jsonlint.com/
To generate my Object class from my Json structure: https://www.jsonutils.com/
The simple code:
RootObject rootObj= JsonConvert.DeserializeObject<RootObject>(File.ReadAllText(pathFile));
...
Why is vertical-align: middle not working on my span or div?
...ime has passed since my original post and this is what should be done now: http://jsfiddle.net/m3ykdyds/200
/* CSS file */
.main {
display: table;
}
.inner {
border: 1px solid #000000;
display: table-cell;
vertical-align: middle;
}
/* HTML File */
<div class="main">
<...
How to check whether a file or directory exists?
...// file does not exist
} else {
// other error
}
}
See : http://golang.org/pkg/os/#IsNotExist
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How to split a file into equal parts, without breaking individual lines? [duplicate]
...files. The option --number=l/n generates n files without splitting lines.
http://www.gnu.org/software/coreutils/manual/html_node/split-invocation.html#split-invocation
http://savannah.gnu.org/forum/forum.php?forum_id=6662
s...