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Check if a Bash array contains a value
...i
Note that in cases where the value you are searching for is one of the words in an array element with spaces, it will give false positives. For example
array=("Jack Brown")
value="Jack"
The regex will see "Jack" as being in the array even though it isn't. So you'll have to change IFS and th...
How do I convert a Ruby class name to a underscore-delimited symbol?
...s defined in ActiveSupport::Inflector):
class String
def underscore
word = self.dup
word.gsub!(/::/, '/')
word.gsub!(/([A-Z]+)([A-Z][a-z])/,'\1_\2')
word.gsub!(/([a-z\d])([A-Z])/,'\1_\2')
word.tr!("-", "_")
word.downcase!
word
end
end
...
How can I use “.” as the delimiter with String.split() in java [duplicate]
...pecial meaning for regexes.
You (probably) want something like:
String[] words = line.split("\\.");
Some folks seem to be having trouble getting this to work, so here is some runnable code you can use to verify correct behaviour.
import java.util.Arrays;
public class TestSplit {
public stati...
Naming “class” and “id” HTML attributes - dashes vs. underlines [closed]
...commend the Google HTML/CSS Style Guide
It specifically states:
Separate words in ID and class names by a hyphen. Do not concatenate words and abbreviations in selectors by any characters (including none at all) other than hyphens, in order to improve understanding and scannability.
/* Not recomm...
What's wrong with this 1988 C code?
...r preprocessor definitions of IN and OUT:
#define IN 1; /* inside a word */
#define OUT 0; /* outside a word */
Notice how you have a trailing semicolon in each of these. When the preprocessor expands them, your code will look roughly like:
if (c == ' ' || c == '\n' || c == '\t')
...
Reverse a string in Java
...ring);
System.out.println(buffer.reverse());
}
Reverse string by WORDS:
public static void reverseStringByWords(String string) {
StringBuilder stringBuilder = new StringBuilder();
String[] words = string.split(" ");
for (int j = words.length-1; j >= 0; j--) {
strin...
Sorting a vector in descending order
...ay, O(n * log(n) + n), he said O(n * log(n)) + O(n). You're right that his wording is unclear (especially his misuse of the word complexity), but you could've answered in a kinder way. E.g.: Maybe you meant to use the word 'computation' instead of the word 'complexity'. Reversing the numbers is an ...
Sublime Text 2 multiple line edit
I want to edit multiple lines and every "word" within that line. For example:
9 Answers
...
Command not found error in Bash variable assignment
...able assignments and redirections, in any sequence, optionally followed by words and redirections, terminated by a control operator.
In that context, a word is the command that bash is going to run. Any string containing = (in any position other than at the beginning of the string) which is not ...
A semantics for Bash scripts?
...ining some features of LISP (s-expressions have a lot in common with shell word splitting) and C (much of the shell's arithmetic syntax semantics comes from C).
The other root of the shell's syntax comes from its upbringing as a mishmash of individual UNIX utilities. Most of what are often builtins...