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Regex - Should hyphens be escaped? [duplicate]

... Correct on all fronts. Outside of a character class (that's what the "square brackets" are called) the hyphen has no special meaning, and within a character class, you can place a hyphen as the first or last character in the range (e.g....
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Fix warning “Capturing [an object] strongly in this block is likely to lead to a retain cycle” in AR

...r using it inside the block should be ok, but it still shows the warning. __block ASIHTTPRequest *request = [[ASIHTTPRequest alloc] initWithURL:... [request setCompletionBlock:^{ NSDictionary *jsonDictionary = [[CJSONDeserializer deserializer] deserialize:request.responseData error:nil]; r...
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What's the difference between globals(), locals(), and vars()?

... the same dict each time - it's attached to the stack frame object as its f_locals attribute. The dict's contents are updated on each locals() call and each f_locals attribute access, but only on such calls or attribute accesses. It does not automatically update when variables are assigned, and assi...
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$_POST vs. $_SERVER['REQUEST_METHOD'] == 'POST'

Some guy called one of my Snipplr submissions "crap" because I used if ($_SERVER['REQUEST_METHOD'] == 'POST') instead of if ($_POST) ...
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How do I set the figure title and axes labels font size in Matplotlib?

...ze=18) plt.ylabel('ylabel', fontsize=16) fig.savefig('test.jpg') For globally setting title and label sizes, mpl.rcParams contains axes.titlesize and axes.labelsize. (From the page): axes.titlesize : large # fontsize of the axes title axes.labelsize : medium # fontsize of the x any y...
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Find the most common element in a list

...roups by the item only (via operator.itemgetter). The auxiliary function, called once per grouping during the max computation, receives and internally unpacks a group - a tuple with two items (item, iterable) where the iterable's items are also two-item tuples, (item, original index) [[the items of ...
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What is the difference between user and kernel modes in operating systems?

... CPU instruction and reference any memory address. Kernel mode is generally reserved for the lowest-level, most trusted functions of the operating system. Crashes in kernel mode are catastrophic; they will halt the entire PC. User Mode In User mode, the executing code has no abili...
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Why am I getting a “401 Unauthorized” error in Maven?

...publish. The SNAPSHOTS repository (as opposed to the releases repository) allows you to overwrite a similarly numbered version, but your version number should have "-SNAPSHOT" at the end of it. share | ...
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Parsing Visual Studio Solution files

...gage in the meta discussions if you want to learn more about this. I personally find that it's a bit crazy sometimes. Please note that I had absolutely nothing to do with your edits getting shut down. The proper way though I think to add you edits is actually to repost everything as another answer. ...
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SQL UPDATE SET one column to be equal to a value in a related table referenced by a different column

... Without the update-and-join notation (not all DBMS support that), use: UPDATE QuestionTrackings SET QuestionID = (SELECT QuestionID FROM AnswerTrackings WHERE AnswerTrackings.AnswerID = QuestionTrackings.AnswerID) ...