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How to detect a Christmas Tree? [closed]

...ntaining (uint, 0-255) color image hueleftthr: Scalar constant to select maximum allowed hue in the yellow-green region huerightthr: Scalar constant to select minimum allowed hue in the blue-purple region satthr: Scalar constant t...
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Rename multiple files by replacing a particular pattern in the filenames using a shell script [dupli

...tern ^([^-]+)-([^.]+) means: from the start of the name, capture 1 or more chars that are NOT -, then expect a dash, then capture 1 or more chars that are not .. $1 is the first capture, $2 is the second. – erich2k8 Apr 18 '19 at 15:53 ...
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How to specify a port number in SQL Server connection string?

... C# to Java, and this answer saves me. Again. – smwikipedia Apr 3 '15 at 1:10 1 ...
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Logout: GET or POST?

...n of being logged in, then you should be able to to "log out" using javascript. No round trip required. Fielding Dissertation - Section 5.1.3 each request from client to server must contain all of the information necessary to understand the request, and cannot take advantage of any s...
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How can I clear or empty a StringBuilder? [duplicate]

...eap! How can you say that? Suppose you have a buffer with capacity of 1000 chars. Then you dispose of it (work for GC) and create a new one (work for allocator). It's a lot faster just to set the text length to zero (virtually no work for CPU) and reuse the same buffer. – Sulth...
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How to read a (static) file from inside a Python package?

...lidtk ├── lidtk │   ├── analysis │   │   ├── char_distribution.py │   │   └── create_cm.py │   ├── classifiers │   │   ├── char_dist_metric_train_test.py │   │   ├── char_features.py │   │   ├── cld2 │...
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iOS JavaScript bridge

...NSString *)bar; - (void)testfoo; + (BOOL)isKeyExcludedFromWebScript:(const char *)name; + (BOOL)isSelectorExcludedFromWebScript:(SEL)aSelector; + (WebScriptBridge*)getWebScriptBridge; @end static WebScriptBridge *gWebScriptBridge = nil; @implementation WebScriptBridge - (void)someEvent: (uint64_t)...
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C++ Dynamic Shared Library on Linux

...ostream> #include "myclass.h" using namespace std; int main(int argc, char **argv) { /* on Linux, use "./myclass.so" */ void* handle = dlopen("myclass.so", RTLD_LAZY); MyClass* (*create)(); void (*destroy)(MyClass*); create = (MyClass* (*)())dlsym(handle, "create_object"); destroy...
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What is the best Java email address validation method? [closed]

...d what you have to do to "ensure it's a real email". Addresses with local IPs could be valid in rare environments, though. – Matthew Flaschen Oct 5 '11 at 22:11 5 ...
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Named placeholders in string formatting

... Had trouble with the ' char: unexpected char: ''' – AlikElzin-kilaka Jan 18 '16 at 10:35 add a comment  |...