string-comparison

I want to compare 2 strings which have some non English character in them String1 = debarquer String2 = débárquér On comparing above 2 strings, they should say equal. Use the Collator class. It allows you to set a strength and locale and it will compare characters appropriately. It should be something similar to this (NOTE: I have not tested the program) import java.text.Collator; import java.util.Locale; public class CollatorExp { public static void main(String[] args) { Collator collator = Collator.getInstance(Locale.FRENCH); collator.setStrength(Collator.PRIMARY); if (collator.compare(

MySQL (5.1.41-3ubuntu12.10-log) seems to give predictable results on string comparison using > (greater than) and < (less than): select "a" > "a", "a" > "b", "b" > "a", "ab" > "aa", "ab" > "aabbbb"; +-----------+-----------+-----------+-------------+-----------------+ | "a" > "a" | "a" > "b" | "b" > "a" | "ab" > "aa" | "ab" > "aabbbb" | +-----------+-----------+-----------+-------------+-----------------+ | 0 | 0 | 1 | 1 | 1 | +-----------+-----------+-----------+-------------+-----------------+ and also seems to make use of keys: explain select productcode from products where productcode <

In PowerShell I have an array of string objects, and I have an object that contains string objects. In Java you can do a .equals(aObject) to test if the string values match, whereas doing a == test if the two objects refer to the same location in memory. How do I run an equivalent .equals(aObject) in powershell? I'm doing this: $arrayOfStrings[0].Title -matches $myObject.item(0).Title These both have the exact same string values, but I get a return value of false. Any suggestions? manojlds You want to do $arrayOfString[0].Title -eq $myPbiject.item(0).Title -match is for regex matching ( the

I am seeing a lot of answers for this problem in other languages but I am trying to find out a way to compare 2 version numbers given as strings. For example str1 = "141.1.23" str2 = "141.1.22" I am trying to find a way to compare the integer values in the strings to see which one is larger. (In this case str1 would be larger). I thought about using sometime of combination with atoi and strtok but I know I wont be able to tokenize 2 strings at once. Any advice? I know I wont be able to tokenize 2 strings at once. Fortunately, you do not need to: make a function that takes a string, and parses

I need to do alot of high-performance case-insensitive string comparisons and realized that my way of doing it .ToLower().Trim() was really stupid due do all the new strings being allocated So I digged around a little and this way seems preferable: String.Compare(txt1,txt2, StringComparison.OrdinalIgnoreCase) The only problem here is that I want to ignore leading or trailing spaces, ie Trim() but if I use Trim I have the same problem with string allocations. I guess I could check each string and see if it StartsWith(" ") or EndsWith(" ") and only then Trim. Either that or figure out the index

I'm going through a code review and I'm curious if it's better to convert strings to upper or lower case in JavaScript when attempting to compare them while ignoring case. Trivial example: var firstString = "I might be A different CASE"; var secondString = "i might be a different case"; var areStringsEqual = firstString.toLowerCase() === secondString.toLowerCase(); or should I do this: var firstString = "I might be A different CASE"; var secondString = "i might be a different case"; var areStringsEqual = firstString.toUpperCase() === secondString.toUpperCase(); It seems like either "should" or

I'm reading encrypted credentials/connection strings from a config file. Resharper tells me, "String.IndexOf(string) is culture-specific here" on this line: if (line.Contains("host=")) { _host = line.Substring(line.IndexOf( "host=") + "host=".Length, line.Length - "host=".Length); ...and so wants to change it to: if (line.Contains("host=")) { _host = line.Substring(line.IndexOf("host=", System.StringComparison.Ordinal) + "host=".Length, line.Length - "host=".Length); The value I'm reading will always be "host=" regardless of where the app may be deployed. Is it really sensible to add this

I was unable to find this on php.net. Is the double equal sign ( == ) case sensitive when used to compare strings in PHP? Colin Pickard Yes, == is case sensitive. You can use strcasecmp for case insensitive comparison Artefacto Yes, but it does a comparison byte-by-byte. If you're comparing unicode strings, you may wish to normalize them first. See the Normalizer class. Example (output in UTF-8): $s1 = mb_convert_encoding("\x00\xe9", "UTF-8", "UTF-16BE"); $s2 = mb_convert_encoding("\x00\x65\x03\x01", "UTF-8", "UTF-16BE"); //look the same: echo $s1, "\n"; echo $s2, "\n"; var_dump($s1 == $s2); /