Regular expression to space in C#

Question

I need a help regarding regular expression.

I have to match string like this: "dãasc abd"

Pattern that i have used:

([^\u0000-\u007F] |\\w|^[a-zA-Z0-9-\\s]*$)+

but this pattern does not allow whitle spaces in two strings

Please help me for find out correct pattern for this kind of string.

It isn't clear what you want to match... That reges seems to be a mashup of things... — xanatos, Mar 09 '17 at 10:18
Maybe `@"^\w+(?:[-\s]\w+)*$"`? It will match `Как`, `Как дела`, `Как-никак`, `Ростов-на-Дону`. See [demo](http://regexstorm.net/tester?p=%5e%5cw%2b%28%3f%3a%5b-%5cs%5d%5cw%2b%29*%5cr%3f%24&i=%d0%9a%d0%b0%d0%ba%0d%0a%d0%9a%d0%b0%d0%ba+%d0%b4%d0%b5%d0%bb%d0%b0%0d%0a%d0%9a%d0%b0%d0%ba-%d0%bd%d0%b8%d0%ba%d0%b0%d0%ba%0d%0a%d0%a0%d0%be%d1%81%d1%82%d0%be%d0%b2-%d0%bd%d0%b0-%d0%94%d0%be%d0%bd%d1%83&o=m). — Wiktor Stribiżew, Mar 09 '17 at 10:20
I want to match swedish characters so I put [^\u0000-\u007F] this pattern.I want to match "dãa3sc abd" this type of string. — NullException, Mar 09 '17 at 10:30
Yes, `\w` will match any alphabet letters. See, it also matches Russian words. What are the exact requirements? — Wiktor Stribiżew, Mar 09 '17 at 10:34
That isn't what that regex is matching... It is matching non-ascii characters followed by a space (`[^\u0000-\u007F] `) OR any word character (that is any letter with or without diacritics or any number, see http://stackoverflow.com/a/2998550/613130) or a whole string composed only from letters, numbers and spaces. — xanatos, Mar 09 '17 at 10:35
Besides, the requirements, please also post the code you are using. — Wiktor Stribiżew, Mar 09 '17 at 10:37
Thanks for your help.It's matching but it is not supported by java script as I'm getting client side validation message which vanishes within second so to avoid that I have used [^\u0000-\u007F]. — NullException, Mar 09 '17 at 10:41
I'm using it in MVC as attribute to property.Property [RegularExpression(RegexKeys.AllLanguageCharacters , ErrorMessage = "Please enter a valid string,no special characters allowed")] — NullException, Mar 09 '17 at 10:42
@Shubh's Ok, try with `^([A-Za-z0-9]|\\s|[^\u0000-\u007F)+$` — xanatos, Mar 09 '17 at 11:08
Does it mean the regex pattern should also be compatible with JavaScript regex engine? Is it also run on the client side? — Wiktor Stribiżew, Mar 09 '17 at 11:22
@WiktorStribiżew..How can I accept your answer?I'm not finding any option to up vote.. — NullException, Mar 09 '17 at 11:47
Is the `@"^\w+(?:[-\s]\w+)*$"` pattern working for you? But it accepts underscores. In order to not match them you need `@"^[\w-[_]]+(?:[-\s][\w-[_]]+)*$"` - but that will only work on the server side, in .NET. — Wiktor Stribiżew, Mar 09 '17 at 11:50
No @"^\w+(?:[-\s]\w+)*$" pattern not working for me as it accepts underscore. but ^([A-Za-z0-9]|\\s|[^\u0000-\u007F)+$ pattern worked on both client and server side — NullException, Mar 09 '17 at 12:01
I think what worked was `^([A-Za-z0-9]|\\s|[^\u0000-\u007F])+$` — Wiktor Stribiżew, Mar 09 '17 at 12:02

score 1 · Answer 1 · edited Mar 09 '17 at 21:34

1

You need to remove one slash in your regex, where you define white space:

Try this:

@"([^\u0000-\u007F]|\s|[a-zA-Z0-9-])+"

edited Mar 09 '17 at 21:34

Wiktor Stribiżew

607,720
39
448
563

answered Mar 09 '17 at 10:26

Damian Sędrowski

51
2

score 0 · Accepted Answer · answered Mar 09 '17 at 12:21

You could try with:

^([A-Za-z0-9]|\\s|[^\u0000-\u007F])+$

It means that the string must be entirely composed of ASCII letters or numbers [A-Za-z0-9] or spaces \\s or non-ASCII characters [^\u0000-\u007F] (it means characters outside the 00-7F range, so >7F

Regular expression to space in C#

2 Answers2