 Python - need to change a list with uppercase and lowercase words into all lowercase
By : Ul Seyha
Date : March 29 2020, 07:55 AM
will be helpful for those in need My project is pretty basic... I need to take a text file of the gettysburg address and count the number of words and the number of unique words. I've gotten pretty much all the way to the end but its double counting words that are the same just with a capital first letter -- ie But and but. I'm not sure how to fix this :( Here is what I have so far: , Lowercase the words while collecting them: code :
words = [word.lower() for line in lines for word in line.split()]
unique = list(set(word.lower() for word in words))
with open('Gettysburgaddress.txt','r') as getty:
words = [word.lower() for line in getty for word in line.split()]
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 How to construct Perl regex to replace (lowercase followed by uppercase) by (lowercase. uppercase)?
By : Menglei Sun
Date : March 29 2020, 07:55 AM
With these it helps I would like to write a perl regex to replace some pattern to other pattern. The source pattern is lowercase followed by uppercase. The destination pattern is the lowercase followed by dot, space and the uppercase. , I suggest the following: code :
$StringToConvert = s/([A-Z][a-z]+)(?=[A-Z])/$1\. /g;
CamelCase
Camel. Case
CamelCaseMultiple
Camel. Case. Multiple
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 How to zgrep an UPPERCASE as a lowercase without pipes / variables / echo
By : Nurul Syuhada
Date : March 29 2020, 07:55 AM
this will help How to zgrep an UPPERCASE PATTERN as it was a lowercase, e.x.: , That's a crazy set of restrictions. How about code :
zgrep "$(tr '[:upper:]' '[:lower:]' <<<"MYPATTERN")" *.gz
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 Fastest way of converting uppercase to lowercase and lowercase to uppercase in Java
By : Rami Alnajjar
Date : March 29 2020, 07:55 AM
To fix this issue As promised, here are two JMH benchmarks; one comparing Character#toUpperCase to your bitwise method, and the other comparing Character#toLowerCase to your other bitwise method. Note that only characters within the English alphabet were tested. First Benchmark (to uppercase): code :
@State(Scope.Benchmark)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Warmup(iterations = 5, time = 500, timeUnit = TimeUnit.MILLISECONDS)
@Measurement(iterations = 10, time = 500, timeUnit = TimeUnit.MILLISECONDS)
@Fork(3)
public class Test {
@Param({"a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m",
"n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z"})
public char c;
@Benchmark
public char toUpperCaseNormal() {
return Character.toUpperCase(c);
}
@Benchmark
public char toUpperCaseBitwise() {
return (char) (c & 65503);
}
}
Benchmark (c) Mode Cnt Score Error Units
Test.toUpperCaseNormal a avgt 30 2.447 ± 0.028 ns/op
Test.toUpperCaseNormal b avgt 30 2.438 ± 0.035 ns/op
Test.toUpperCaseNormal c avgt 30 2.506 ± 0.083 ns/op
Test.toUpperCaseNormal d avgt 30 2.411 ± 0.010 ns/op
Test.toUpperCaseNormal e avgt 30 2.417 ± 0.010 ns/op
Test.toUpperCaseNormal f avgt 30 2.412 ± 0.005 ns/op
Test.toUpperCaseNormal g avgt 30 2.410 ± 0.004 ns/op
Test.toUpperCaseBitwise a avgt 30 1.758 ± 0.007 ns/op
Test.toUpperCaseBitwise b avgt 30 1.789 ± 0.032 ns/op
Test.toUpperCaseBitwise c avgt 30 1.763 ± 0.005 ns/op
Test.toUpperCaseBitwise d avgt 30 1.763 ± 0.012 ns/op
Test.toUpperCaseBitwise e avgt 30 1.757 ± 0.003 ns/op
Test.toUpperCaseBitwise f avgt 30 1.755 ± 0.003 ns/op
Test.toUpperCaseBitwise g avgt 30 1.759 ± 0.003 ns/op
@State(Scope.Benchmark)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@Warmup(iterations = 5, time = 500, timeUnit = TimeUnit.MILLISECONDS)
@Measurement(iterations = 10, time = 500, timeUnit = TimeUnit.MILLISECONDS)
@Fork(3)
public class Test {
@Param({"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"})
public char c;
@Benchmark
public char toLowerCaseNormal() {
return Character.toUpperCase(c);
}
@Benchmark
public char toLowerCaseBitwise() {
return (char) (c | 32);
}
}
Benchmark (c) Mode Cnt Score Error Units
Test.toLowerCaseNormal A avgt 30 2.084 ± 0.007 ns/op
Test.toLowerCaseNormal B avgt 30 2.079 ± 0.006 ns/op
Test.toLowerCaseNormal C avgt 30 2.081 ± 0.005 ns/op
Test.toLowerCaseNormal D avgt 30 2.083 ± 0.010 ns/op
Test.toLowerCaseNormal E avgt 30 2.080 ± 0.005 ns/op
Test.toLowerCaseNormal F avgt 30 2.091 ± 0.020 ns/op
Test.toLowerCaseNormal G avgt 30 2.116 ± 0.061 ns/op
Test.toLowerCaseBitwise A avgt 30 1.708 ± 0.006 ns/op
Test.toLowerCaseBitwise B avgt 30 1.705 ± 0.018 ns/op
Test.toLowerCaseBitwise C avgt 30 1.721 ± 0.022 ns/op
Test.toLowerCaseBitwise D avgt 30 1.718 ± 0.010 ns/op
Test.toLowerCaseBitwise E avgt 30 1.706 ± 0.009 ns/op
Test.toLowerCaseBitwise F avgt 30 1.704 ± 0.004 ns/op
Test.toLowerCaseBitwise G avgt 30 1.711 ± 0.007 ns/op
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 Why this code isn't replacing all uppercase into lowercase and all lowercase into uppercase letter?
By : user3371644
Date : March 29 2020, 07:55 AM
I hope this helps you . I thought that this code will change all uppercase into lowercase and lowercase into uppercase but it isn't working.. why? code :
fun changeCase(input : String) : String {
val builder = StringBuilder()
for (i in 0..input.length-1){
val char : Char = input[i]
if (char.isUpperCase) builder.append(char.toLowerCase)
else if (char.isLowerCase) builder.append(char.toUpperCase)
else builder.append(char)
}
return builder.toString()
}
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code :
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