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Regular expression search replace in Sublime Text 2
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Regex how to match an optional character
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256
Use
[A-Z]?
to make the letter optional. {1} is redundant. (Of course you could also write [A-...
Why does this assert throw a format exception when comparing structures?
... BlueRaja - Danny Pflughoeft
72.3k2525 gold badges169169 silver badges251251 bronze badges
answered Feb 19 '13 at 20:42
Jon SkeetJon Skeet
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Why modelVersion of pom.xml is necessary and always set to 4.0.0?
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Dinei
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answered Nov 3 '13 at 23:43
BojBoj
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How do you detect Credit card type based on number?
...ession like the ones below: Credit for original expressions
Visa: ^4[0-9]{6,}$ Visa card numbers start with a 4.
MasterCard: ^5[1-5][0-9]{5,}|222[1-9][0-9]{3,}|22[3-9][0-9]{4,}|2[3-6][0-9]{5,}|27[01][0-9]{4,}|2720[0-9]{3,}$ Before 2016, MasterCard numbers start with the numbers 51 through 55, but ...
How to reorder data.table columns (without copying)
...e(a = 1:3, b = 3:1, c = runif(3))
x
# a b c
# [1,] 1 3 0.2880365
# [2,] 2 2 0.7785115
# [3,] 3 1 0.3297416
setcolorder(x, c("c", "b", "a"))
x
# c b a
# [1,] 0.2880365 3 1
# [2,] 0.7785115 2 2
# [3,] 0.3297416 1 3
From ?setcolorder:
In data.table parlance, all set* fun...
对外网用户的squid代理+认证 - 更多技术 - 清泛网 - 专注C/C++及内核技术
对外网用户的squid代理+认证FreeBSD6 2+Squid2 6架设对外网用户的squid代理+认证服务器架设一台代理，提供对外网用户的代理请求，端口仍然为3128，加入Squid认证功能。 FreeBSD6.2+Squid2.6架设“对外网用户的squid代理+认证”服务器架设...
TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
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/*
* Two Levels Segregate Fit memory allocator (TLSF)
* Version 2.4.6
*
* Written by Miguel Masmano Tello <mimastel@doctor.upv.es>
*
* Thanks to Ismael Ripoll for his suggestions and reviews
*
* Copyright (C) 2008, 2007, 2006, 2005, 2004
*
* This code is released using a dual ...
Generate array of all letters and digits
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or
('a'..'z').to_a + ('0'..'9').to_a # works in 1.8 and 1.9
or
(0...36).map{ |i| i.to_s 36 }
(the Integer#to_s method converts a number to a string representing it in a desired numeral system)
share
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std::vector performance regression when enabling C++11
...a.out
Performance counter stats for './a.out' (10 runs):
35.426793 task-clock # 0.986 CPUs utilized ( +- 1.75% )
4 context-switches # 0.116 K/sec ( +- 5.69% )
0 CPU-migrations # ...