In Powershell, I'm trying to detect whether certain character sets appear within a filename, such as Chinese, Korean, etc. I defined a variable to hold the patterns, like this:

Define the regular expression pattern for English and other European languages

$euroPattern = "[\p{IsBasicLatin}\p{IsLatin-1Supplement}\p{IsLatinExtended-A}\p{IsLatinExtended-B}]"

Define the regular expression patterns for Korean, Chinese, and Japanese characters

$koreanPattern = "[\p{IsHangul}]"
$chinesePattern = "[\p{IsCJKUnifiedIdeographs}]"
$japanesePattern = "[\p{IsHiragana}\p{IsKatakana}]"

However, other than with the Euro languages, all of the other language patterns are returning this error message: "Array index expression is missing or not valid."

What can be going on here?

H BlackJacquesi, hope you're doing well. I’m Ian, and I’m happy to help you today.

You can try the regex below:

For Korean, you can use: "[\uAC00-\uD7AF]"

For Chinese, you can use: "[\u4E00-\u9FA5]"

For Japanese, you can use: "[\u3040-\u309F]"

This is a user-to-user support forum and I am a fellow user.

I hope this helps, but please let me know if you need anything else.

Thanks that helped. Do you know how I can find the character number ranges of other languages too?

Thanks that helped. Do you know how I can find the character number ranges of other languages too?