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Which regular expression operator means 'Don't' match this character?
*, ?, + characters all mean match this character. Which character means 'don't' match this? Examples would help.
4 Answers...
Multiline bash commands in makefile
...colon:
foo:
for i in `find`; \
do \
all="$$all $$i"; \
done; \
gcc $$all
But if you just want to take the whole list returned by the find invocation and pass it to gcc, you actually don't necessarily need a multiline command:
foo:
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Using str_replace so that it only acts on the first match?
...
There's no version of it, but the solution isn't hacky at all.
$pos = strpos($haystack, $needle);
if ($pos !== false) {
$newstring = substr_replace($haystack, $replace, $pos, strlen($needle));
}
Pretty easy, and saves the performance penalty of regular expressions.
Bonus: If...
How to create an alias for a command in Vim?
...
132
To leave completion untouched, try using
cnoreabbrev W w
It will replace W in command line wi...
How to set JAVA_HOME environment variable on Mac OS X 10.9?
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Literally all you have to do is:
echo export "JAVA_HOME=\$(/usr/libexec/java_home)" >> ~/.bash_profile
and restart your shell.
If you have multiple JDK versions installed and you want it to be a specific one, you can use...
Is it possible to add dynamically named properties to JavaScript object?
... |
edited Jul 26 '09 at 9:32
answered Jul 26 '09 at 9:27
cl...
How long is the SHA256 hash?
...(64), or even a char(64), as the length is always the same, not varying at all.
And the demo :
$hash = hash('sha256', 'hello, world!');
var_dump($hash);
Will give you :
$ php temp.php
string(64) "68e656b251e67e8358bef8483ab0d51c6619f3e7a1a9f0e75838d41ff368f728"
i.e. a string with 64 character...
Why are function pointers and data pointers incompatible in C/C++?
...ry but C doesn't limit itself to only certain types of architectures if at all possible.
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Are parameters in strings.xml possible? [duplicate]
...The order is not as important as you say. The numbers in the string is actually the order of the parameter. Depending on language you could have the numbers in different order.
– Flaxie
Jan 16 '15 at 8:10
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Creating a new empty branch for a new project
...branches departing from the original branch. But now we want to create a small new project to track some documentation. For that we would want to create a new empty branch to start storing our files, and I would want other users of the network to clone that branch.
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