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Equation (expression) parser with precedence?

...he rest of your Haskell code, and you can write arbitrary Haskell code and call that within your parser, and you can mix and match other libraries all in the same code. (Embedding a parsing language like this in a language other than Haskell results in loads of syntactic cruft, by the way. I did thi...
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Java Pass Method as Parameter

....out.println(data.toString()); } } public static void callCommand(Command command, Object data) { command.execute(data); } public static void main(String... args) { callCommand(new PrintCommand(), "hello world"); } } Edit: as Pete Kirkham...
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How to show “if” condition on a sequence diagram?

... If else condition, also called alternatives in UML terms can indeed be represented in sequence diagrams. Here is a link where you can find some nice resources on the subject http://www.ibm.com/developerworks/rational/library/3101.html ...
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Suppressing “warning CS4014: Because this call is not awaited, execution of the current method conti

This is not a duplicate of "How to safely call an async method in C# without await" . 8 Answers ...
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How to set the focus for a particular field in a Bootstrap modal, once it appears

...is because modal animation is enabled (fade in class of the dialog), after calling .modal('show'), the dialog is not immediately visible, so it can't get focus at this time. I can think of two ways to solve this problem: Remove fade from class, so the dialog is immediately visible after calling ....
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Twig: in_array or similar possible within if statement?

...d also the negation is {% if item not in array %} and not {% if not _entry.id in array %}, so it's different from this {% if not var is null %}. – insertusernamehere Dec 18 '12 at 11:23 ...
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Can virtual functions have default parameters?

...' or a derived class' -- is determined by the static type used to make the call to the function. If you call through a base class object, pointer or reference, the default denoted in the base class is used. Conversely, if you call through a derived class object, pointer or reference the defaults d...
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What MIME type should I use for CSV?

...ts This Media Type/OID is used to identify Microsoft Excel generically (i.e., independent of version, subtype, or platform format). I wasn't aware that vendor extensions were allowed. Check out this answer to find out more - thanks starbeamrainbowlabs for the reference. ...
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How to pass a function as a parameter in Java? [duplicate]

...ou have a class or interface with only a single abstract method (sometimes called a SAM type), for example: public interface MyInterface { String doSomething(int param1, String param2); } then anywhere where MyInterface is used, you can substitute a lambda expression: class MyClass { pub...
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Python Script execute commands in Terminal

... but. You should use subprocess for everything. It's way safer. subprocess.call() will get you a nice interface in order to replace the simple call form. – Jorge Vargas Mar 24 '11 at 20:35 ...