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ANTLR: Is there a simple example?
...r'| '\n') {$channel=HIDDEN;}
;
(Parser rules start with a lower case letter, and lexer rules start with a capital letter)
After creating the grammar, you'll want to generate a parser and lexer from it. Download the ANTLR jar and store it in the same directory as your grammar file.
Execute th...
Get underlying NSData from UIImage
...ct with init(data: originalData), that originalData will be converted into raw data in some kind of internal format. These data can be retrieved later with
let rawData = myImage.cgImage?.dataProvider?.data as Data?
However because the rawData is raw, it is going to be even larger than when using ...
Why is argc not a constant?
...onment. If the host environment is not capable of
supplying strings with letters in both uppercase and lowercase, the implementation
shall ensure that the strings are received in lowercase.
If the value of argc is greater than zero, the string pointed to by argv[0]
represents the program nam...
Bitwise operation and usage
...n.
As a concrete example, imagine some one gives you a file that contains raw data that was captured directly by telecommunication hardware. In this case, in order to find the frames, you will need to read the raw bytes in the file and try to find some kind of synchronization words, by scanning th...
Aligning a float:left div to center?
... Or set the parent element font-size:0 and restore it on the child. Or use letter-spacing:-.31em on the parent and letter-spacing:0 on the child.
– Mike Causer
Sep 4 '14 at 2:06
...
How do I pass a unique_ptr argument to a constructor or a function?
...bject pointed to, or by what means that ownership is managed, so passing a raw pointer is both perfectly safe, and the most flexible form, since regardless of ownership a client can always produce a raw pointer (either by calling the get method or from the address-of operator &).
For instance t...
What is the difference between varchar and nvarchar?
...f the character set is MS-1252, you can only store characters like English letters, a handful of accented letters, and a few others (like € and —). Your application would be useful only to a few locales, unable to operate anywhere else in the world. For this reason, it is considered A Bad Idea.
...
How do you implement a good profanity filter?
...somewhat advanced generic class for word filtering that *'s out the center letters from censored words, and this previous Stack Overflow question that also has a PHP example (the main valuable part in there is the SQL-based filtered word approach -- the leet-speak compensator can be dispensed with i...
Should sorting logic be placed in the model, the view, or the controller? [closed]
...everything but the sorting logic to a single third model. docs.google.com/drawings/d/…
– rightfold
Dec 11 '15 at 14:03
...
Laravel Eloquent Sum of relation's column
...y AS paid_sum' => function ($query) {
$query->select(DB::raw("SUM(amount_total) as paidsum"))->where('status', 'paid');
}
]);
it returns
"paid_sum_count" => "320.00"
in Deals attribute.
This it now the sum which i wanted to get not the count.
...