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Extract a regular expression match
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One way would be this:
test <- regexpr("[0-9]+","aaa12456xxx")
Now, notice regexpr gives you the starting and ending indices of the string:
> test
[1] 4
attr(,"match.length")
[1] 5
So you can use that info with substr function
substr("aaa12456xxx",test,test+attr(test,"match.le...
Microsoft.Jet.OLEDB.4.0' provider is not registered on the local machine
... mode (This is the answer I found when I did an extensive search for this known issue) and that causes other part of my code to break.
Fortunately, now Microsoft has released a 64 bit compatible 2010 Office System Driver which can be used as replacement for the traditional Microsoft.Jet.OLEDB.4.0 d...
How can I exclude all “permission denied” messages from “find”?
..._and_folders | { grep -v 'Permission denied' >&2; [ $? -eq 1 ]; }
Now, the exit code indicates whether any errors other than Permission denied occurred: 1 if so, 0 otherwise.
In other words: the exit code now reflects the true intent of the command: success (0) is reported, if no errors at ...
Metadata file … could not be found error when building projects
... explorer window but I removed and readded it anyway. It builds just fine now!
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How to set a bitmap from resource
... R.drawable.android_logo
);
Now you can use this bitmap object, whether you want to store it, or to use it in google maps while drawing a pic on fixed latitude and longitude, or to use some where else
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What is the equivalent of the C# 'var' keyword in Java?
...es had names, even if they were extremely verbose and unweildy). I do not know if this has changed in the mean time.
var is not the same as dynamic. variables are still 100% statically typed. This will not compile:
var myString = "foo";
myString = 3;
var is also useful when the type is obvious fro...
Jackson Vs. Gson [closed]
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Gson 1.6 now includes a low-level streaming API and a new parser which is actually faster than Jackson.
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Difference between Role and GrantedAuthority in Spring Security
...s added, a profile is assigned to it (having all permissible permissions). Now when ever user try to perform some action, permission/role for that action is checked against user grantedAuthorities.
Also the defaultn RoleVoter uses prefix ROLE_, so any authority starting with ROLE_ is considered as ...
Is there a typical state machine implementation pattern?
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Hi, I know this post is old but I hope I will get my answer :) What certainly should by in instance_data_t variable? I wonder how to change states in interrupts ... is it a good way to store information about processed interrupt in ...
How can I make git accept a self signed certificate?
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@Flow -- I completely concur. I've edited this (now quite old) answer to be more polemical about disabling TLS/SSL cert verification.
– Christopher
Aug 17 '15 at 19:01
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