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A Regex that will never be matched by anything
...ind one working across all RE engines of interest): r'a\bc', looking for a word-boundary immediately surrounded by letters on both sides (variant: nonword characters on both sides).
– Alex Martelli
Dec 4 '09 at 15:17
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How to pass all arguments passed to my bash script to a function of mine? [duplicate]
...xpansion occurs within double quotes, each parameter expands to a separate word. That is "$@" is equivalent to "$1" "$2" "$3"....
Passing some arguments:
If you want to pass all but the first arguments, you can first use shift to "consume" the first argument and then pass "$@" to pass the remaining...
Difference between final and effectively final
...variable for a case in a switch/case until you explicitly add the final keyword. E.g. "int k = 1; switch(someInt) { case k: ...".
– Henno Vermeulen
Oct 16 '15 at 15:17
2
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How do I use InputFilter to limit characters in an EditText in Android?
...ntroduce dictionary suggestions above the keyboard. When you type a common word (let's say "the") followed by an illegal character for this filter (say, "-"), the whole word is deleted and after you type another characters (even allowed ones, like "blah") filter returns "" and no character shows up ...
Why are regular expressions so controversial? [closed]
...r patterns.
Here is an example a relatively numbered capture group:
$dupword = qr{ \b (?: ( \w+ ) (?: \s+ \g{-1} )+ ) \b }xi;
$quoted = qr{ ( ["'] ) $dupword \1 }x;
And here is an example of the superior approach of named captures:
$dupword = qr{ \b (?: (?<word> \w+ ) (?: \s+ \k<wor...
Download a file from NodeJS Server using Express
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For static files like pdfs, Word docs, etc. just use Express's static function in your config:
// Express config
var app = express().configure(function () {
this.use('/public', express.static('public')); // <-- This right here
});
And then jus...
How to check that a string is a palindrome using regular expressions?
...odes and one node is the "start" node. As each letter is read from a given word we traverse the given edge in the machine. If we end up in an accepting state then we say that the machine "accepts" that word.
A regular expression can always be translated into an equivalent finite state machine. That...
Explanation of BASE terminology
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The use of words such as 'Basically' which aren't even significant in terms of meaning they bring in suggests that the acronym was chosen first (ACID vs BASE)and then the words were found to sort of fill in the parts of the acronym. Tha...
Multiple lines of input in
...
It is possible to make a text-input multi-line by giving it the word-break: break-word; attribute. (Only tested this in Chrome)
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Understanding generators in Python
...int.
>>> def myGenerator():
... yield 'These'
... yield 'words'
... yield 'come'
... yield 'one'
... yield 'at'
... yield 'a'
... yield 'time'
>>> myGeneratorInstance = myGenerator()
>>> next(myGeneratorInstance)
These
>>> next(myGene...