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What is the best regular expression to check if a string is a valid URL?
...EFFFD}!\$&'\(\)\*\+,;=:@])|[\/\?])*)?)$/i
How they were compiled (in PHP):
<?php
/* Regex convenience functions (character class, non-capturing group) */
function cc($str, $suffix = '', $negate = false) {
return '[' . ($negate ? '^' : '') . $str . ']' . $suffix;
}
function ncg($str, $...
Read url to string in few lines of java code
...gular expression \\A matches the beginning of input. This tells Scanner to tokenize the entire stream, from beginning to (illogical) next beginning.
– Rune
May 5 '13 at 10:00
7
...
Tab Vs Space preferences in Vim
...red Oct 23 '09 at 0:09
too much phptoo much php
78.8k3333 gold badges120120 silver badges133133 bronze badges
...
Android: How to create a Dialog without a title?
...k good try but it is not working. I
get:
android.view.WindowManager$BadTokenException:
Unable to add window -- token null is
not for an application if I want to
shwo the dialog.
Change the alert dialog type to system dialog ( e.g., TYPE_SYSTEM_OVERLAY ) and see if this resolves your issu...
How to determine CPU and memory consumption from inside a process?
... 4294967295 0 0 17 0 0 0 0
The important data here are the 13th and 14th tokens (0 and 770 here). The 13th token is the number of jiffies that the process has executed in user mode, and the 14th is the number of jiffies that the process has executed in kernel mode. Add the two together, and you ...
Speed up the loop operation in R
...s, then fill them in, rather than expanding them each
time.
Even with pre-allocation, you could switch to a pass-by-reference approach rather than a pass-by-value approach, but it may not be worth the hassle.
Take a look at the R Inferno for more pitfalls to avoid.
Try for better vectorization...
Chrome doesn't delete session cookies
...y indicate that you are still logged in and/or have staled CSRF protection token.
– sayap
Mar 5 '13 at 8:23
2
...
Is it safe to parse a /proc/ file?
... dest, destp, sp->sk_state,
atomic_read(&sp->sk_wmem_alloc),
atomic_read(&sp->sk_rmem_alloc),
0, 0L, 0, sock_i_uid(sp), 0, sock_i_ino(sp),
atomic_read(&sp->sk_refcnt), sp, atomic_read(&sp->sk_drops));
which outputs
[wa...
Weak and strong property setter attributes in Objective-C
...t point to it anymore"
- in other words " I'am the owner, you cannot dealloc this before aim fine with that same as retain"
- You use strong only if you need to retain the object.
- By default all instance variables and local variables are strong pointers.
- We generally use strong f...
How to check which locks are held on a table
...AS P
ON P.hobt_id = TL.resource_associated_entity_id
LEFT OUTER JOIN sys.allocation_units AS AU
ON AU.allocation_unit_id = TL.resource_associated_entity_id;
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