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Is there a generator version of `string.split()` in Python?
...irly minimal memory overhead.
def split_iter(string):
return (x.group(0) for x in re.finditer(r"[A-Za-z']+", string))
Demo:
>>> list( split_iter("A programmer's RegEx test.") )
['A', "programmer's", 'RegEx', 'test']
edit: I have just confirmed that this takes constant memory in py...
How do I use the new computeIfAbsent function?
...g a map and putting the values in it for the base cases, namely, fibonnaci(0) and fibonacci(1):
private static Map<Integer,Long> memo = new HashMap<>();
static {
memo.put(0,0L); //fibonacci(0)
memo.put(1,1L); //fibonacci(1)
}
And for the inductive step all we have to do is redef...
HTML Submit-button: Different value / button-text?
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answered Nov 13 '10 at 8:39
PekkaPekka
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Use JSTL forEach loop's varStatus as an ID
...{theCount.index}">
To clarify:
${theCount.index} starts counting at 0 unless you've set the begin attribute
${theCount.count} starts counting at 1
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Checking for the correct number of arguments
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#!/bin/sh
if [ "$#" -ne 1 ] || ! [ -d "$1" ]; then
echo "Usage: $0 DIRECTORY" >&2
exit 1
fi
Translation: If number of arguments is not (numerically) equal to 1 or the first argument is not a directory, output usage to stderr and exit with a failure status code.
More friendly er...
How to fix error with xml2-config not found when installing PHP from sources?
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edited Nov 20 '14 at 17:42
radtek
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Print variables in hexadecimal or decimal format
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cnicutarcnicutar
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Proper way to exit iPhone application?
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Have you tried exit(0)?
Alternatively, [[NSThread mainThread] exit], although I have not tried that it seems like the more appropriate solution.
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Capitalize or change case of an NSString in Objective-C
...g stringWithString:self];
[self enumerateSubstringsInRange:NSMakeRange(0, [self length])
options:NSStringEnumerationBySentences
usingBlock:^(NSString *sentence, NSRange sentenceRange, NSRange enclosingRange, BOOL *stop) {
[mutableSel...
Regular expression for a string containing one word but not another
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answered Jun 1 '10 at 20:26
KobiKobi
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