case-insensitive

I was wondering if there is a way to perform case insensitive match in java switch case statement. the default implementation is case sensitive . Please see the example below. public class SwitchCaseTest { /** * @param args */ public static void main(String[] args) { switch ("UPPER") { case "upper" : System.out.println("true"); break; default: System.out.println("false"); break; } } } So above statement returns false as output. And i am trying make it work for case-insensitive match like String.equalsIgnoreCase() would do. I tried to convert both the string literal to lower case and then

Code shown below works well when JSON object contains jsonKey as it was passed to the method. I wonder ... if there is a way to get a value assigned to a case insensitive representation of a key? Example: public String getOutputEventDescription(JsonElement outputEvent) throws ParserException { return retrieveString(outputEvent, DESCRIPTION); } Should work regardless whether DESCRIPTION is defined as "Description", "description" or "DeScRipTIOn" protected String retrieveString(JsonElement e, String jsonKey) throws ParserException { JsonElement value = e.getAsJsonObject().get(jsonKey); if (value

I am using MongoDB and the C# driver for MongoDB . I recently discovered that all queries in MongoDB are case-sensitive. How can I make a case-insensitive search? I found one way to do this: Query.Matches( "FirstName", BsonRegularExpression.Create(new Regex(searchKey,RegexOptions.IgnoreCase))); The simplest and safest way to do that is using Linq : var names = namesCollection.AsQueryable().Where(name => name.FirstName.ToLower().Contains("hamster")); As explained in the tutorial ToLower , ToLowerInvariant , ToUpper and ToUpperInvariant all perform matches in a case insensitive way. After that

I would like to compare two variables to see if they are the same, but I want this comparison to be case-insensitive. For example, this would be case sensitive: if($var1 == $var2){ ... } But I want this to be case insensitive, how would I approach this? This is fairly simple; you just need to call strtolower() on both variables. If you need to deal with Unicode or international character sets, you can use mb_strtolower() . Please note that other answers suggest using strcasecmp() —that function does not handle multibyte characters, so results for any UTF-8 string will be bogus. Ramon

I am using a case insensitive search in Mongo, something similar to https://stackoverflow.com/q/5500823/1028488 . ie I am using a regex with options i. But I am am having trouble restricting the regex to just that word, its performs more like a 'Like' in SQL eg: if I use query like {"SearchWord" : { '$regex' : 'win', $options: '-i' }} , it shows me results for win, window & winter. How do i restrict it to jsut show win? I tried /^win$/ but its sayin invalid Json.... Please suggest a way. Thanks in advance You can use '$regex':'^win$' or /^win$/i (notice no quote on the second one) Source here

Is there a simple ignore-case-comparison for PostgreSQL? I want to replace: SELECT id, user_name FROM users WHERE lower(email) IN (lower('adamB@a.com'), lower('eveA@b.com')); With something like: SELECT id, user_name FROM users WHERE email IGNORE_CASE_IN ('adamB@a.com', 'eveA@b.com'); The like and ilike operators work on single values (e.g. like 'adamB@a.com' ), but not on sets. First, what not to do, don't use ilike... create table y ( id serial not null, email text not null unique ); insert into y(email) values('iSteve.jobs@apple.com') ,('linus.Torvalds@linUX.com'); insert into y(email)