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What's the state of the art in email validation for Rails?
...9.-]+\.[A-Za-z]+\z/
That was adapted from http://www.regular-expressions.info/email.html -- which you should read if you really want to know all the tradeoffs. If you want a more correct and much more complicated fully RFC822-compliant regex, that's on that page too. But the thing is this: you d...
How to get the command line args passed to a running process on unix/linux systems?
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cat /proc/<pid>/cmdline | sed -e "s/\x00/ /g"; echo
There is more info in /proc/<pid> on Linux, just have a look.
On other Unixes things might be different. The ps command will work everywhere, the /proc stuff is OS specific. For example on AIX there is no cmdline in /proc.
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What is INSTALL_PARSE_FAILED_NO_CERTIFICATES error?
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Best design for a changelog / auditing database table? [closed]
...dded, deleted, modified, etc). I don't need to store particularly detailed info, so I was thinking something along the lines of:
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How to find the lowest common ancestor of two nodes in any binary tree?
...s the code:
findLowestCommonAncestor(v,w):
depth_vv = depth(v);
depth_ww = depth(w);
vv = v;
ww = w;
while( depth_vv != depth_ww ) {
if ( depth_vv > depth_ww ) {
vv = parent(vv);
depth_vv--;
else {
ww = parent(ww);
depth_ww--;
}
}
while( vv !...
How to jump back to NERDTree from file in tab?
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Ctrl-ww
This will move between open windows (so you could hop between the NERDTree window, the file you are editing and the help window, for example... just hold down Ctrl and press w twice).
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How to find patterns across multiple lines using grep?
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229
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Case insensitive XPath contains() possible?
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111
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How do I get the current date in JavaScript?
...xtends the base Date object and includes methods such as addDays. For more information, please see the Git.
In this mod, the format characters are inspired by PHP: date. For a complete list, please see my README
This mod also has a much longer list of pre-made formats. To use a premade format, si...
How can I capitalize the first letter of each word in a string?
...ecial case: How would you modify the snippets above to take a string, e.g. WW1 - the great war and output WW1 - The Great War instead of Ww1 .... See the issue with abbreviations? Would you be willing to add something that demonstrates this case? I have been wondering about this for a while now and ...