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In my Android application I have different EditText where the user can enter information. But I need to force user to write in uppercase letters.Do you know a function to do that?

I see that colors in CSS properties values are commonly written in the uppercase form:

.foo .bar {  background-color: #A41B35;  color: #FFF;}

But you can also use:

/* Same same */.foo .bar {  background-color: #a41b35;  color: #fff;}

It looks like using lowercase values does the same, and, CSS values for colors are not case-sensitive. Lots of graphic design software also use the uppercase form. And it is very common to find uppercase notations in source code, it looks like there is something like a tradition.

I understand about the consistency thing, that it should be the same everywhere in you software, but as the standard doesn't give a good indication, people do what they want or what they are told to do.

Is there rational reasons for this, like historic, compatibility, old IE6 hacks, performances or practical reasons?

I am working on a search page with turkish characters, problem is with small i letter When user enters i, it does not bring words starting with İ (capital i in turkish) because of some code(toUpperCase) makes it I (capital i in english)

I tried to implement my own uppercase function instead of using toUpperCase but did not work.

        return this.options.filter(item => {          // this.search = this.search.charAt(0).toUpperCase() + name.slice(1)           return this.capitalize(item.name).indexOf(self.search.toUpperCase()) !== -1          // return item.name.toUpperCase().indexOf(this.search.toUpperCase()) !== -1 // this is the original line that works except for letter i        })

these are my custom capitalize functions

    capitalize1 (s) {      return s.charAt(0).replace('i', 'İ')      return s.charAt(0).replace('ı', 'I')      return s.charAt(0).replace('ü', 'Ü')      return s.charAt(0).replace('a', 'A')      return s.charAt(0).replace('b', 'c')    }, capitalize(search) {           if (search.substring(0,1) === 'i') {             search = search.replace('i', 'İ')            // search = this.capitalize1(self.search)            return search          } else {    var firstChar = search.charCodeAt(0);    if (firstChar >= 97 && firstChar <= 122) {        return String.fromCharCode(firstChar - 32) + word.substr(1);    }    return search;          }}  

I expect it to brings words starting with capital i (İ) but not bring, or not bring anyting et all (with my custom capitalize functions)

I'm working with a designer, and we have a few different typefaces involved in the project - sometimes doing everything in all caps, sometimes all lower case. This applies to both my labels and buttons. These may change, so what I'm attempting to do is have custom UILabel and UIButton classes where the button title will be automatically adjusted to the case I want without regards to what capitalization is entered in the interface builder or text from code. I have successfully managed this with my custom labels with the following code:

class MyHeadlineLabel : UILabel {override func didMoveToWindow() {    self.text = self.text?.lowercased()    self.font = MyFonts.headlineFont}}

However, adding similar code to the didMoveToWindow() function of UIButton does NOT work:

class MyDarkTextButton: UIButton {override func didMoveToWindow() {    self.titleLabel?.text = self.titleLabel?.text?.uppercased()    self.font = MyFonts.subHeadFont            }}

How would I go about doing that? Or, better yet, is there a way to use my custom labels as the button labels?

I'm using java version "1.8.0_191" and selenium 3.141.59.

I'm trying to find out if a page contains the word "error" or "erreur". Also, I want it to be case insensitive.

Finding a text is easy:

List<WebElement> elementList = driver.findElements(By.xpath("//*[contains(text(), 'error')]"));

By I'm having a harder time making it case insensitive. So far I tried this (inspired by this question):

List<WebElement> elementList = driver.findElements(By.xpath("/html/body//text()[contains(translate(., 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'error')]"));

But it return the following error:

org.openqa.selenium.WebDriverException: TypeError: Expected an element or WindowProxy, got: [object Text] {}

I also tried this:

 List<WebElement> elementList = driver.findElements(By.xpath("//*[contains(transate(text(), 'ABCDEFGHIJKLMNOPQRSTUVWXYZ', 'abcdefghijklmnopqrstuvwxyz'), 'error')]"));

But it doesn't work either (since it's not a legal expression).

So, any idea in how to make this work?